Big pullreq this week, since it's got RTH's PAN/UAO/ATS1E1 implementation in it, and also Philippe's raspi board model cleanup patchset, as well as a scattering of smaller stuff. -- PMM The following changes since commit 7ce9ce89930ce260af839fb3e3e5f9101f5c69a0: Merge remote-tracking branch 'remotes/kraxel/tags/ui-20200212-pull-request' into staging (2020-02-13 11:06:32 +0000) are available in the Git repository at: https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20200213 for you to fetch changes up to dc7a88d0810ad272bdcd2e0869359af78fdd9114: target/arm: Implement ARMv8.1-VMID16 extension (2020-02-13 14:30:51 +0000) ---------------------------------------------------------------- target-arm queue: * i.MX: Fix inverted sense of register bits in watchdog timer * i.MX: Add support for WDT on i.MX6 * arm/virt: cleanups to ACPI tables * Implement ARMv8.1-VMID16 extension * Implement ARMv8.1-PAN * Implement ARMv8.2-UAO * Implement ARMv8.2-ATS1E1 * ast2400/2500/2600: Wire up EHCI controllers * hw/char/exynos4210_uart: Fix memleaks in exynos4210_uart_init * hw/arm/raspi: Clean up the board code ---------------------------------------------------------------- Chen Qun (1): hw/char/exynos4210_uart: Fix memleaks in exynos4210_uart_init Guenter Roeck (2): hw/arm: ast2400/ast2500: Wire up EHCI controllers hw/arm: ast2600: Wire up EHCI controllers Heyi Guo (7): bios-tables-test: prepare to change ARM virt ACPI DSDT arm/virt/acpi: remove meaningless sub device "RP0" from PCI0 arm/virt/acpi: remove _ADR from devices identified by _HID arm/acpi: fix PCI _PRT definition arm/acpi: fix duplicated _UID of PCI interrupt link devices arm/acpi: simplify the description of PCI _CRS virt/acpi: update golden masters for DSDT update Peter Maydell (1): target/arm: Implement ARMv8.1-VMID16 extension Philippe Mathieu-Daudé (13): hw/arm/raspi: Use BCM2708 machine type with pre Device Tree kernels hw/arm/raspi: Correct the board descriptions hw/arm/raspi: Extract the version from the board revision hw/arm/raspi: Extract the RAM size from the board revision hw/arm/raspi: Extract the processor type from the board revision hw/arm/raspi: Trivial code movement hw/arm/raspi: Make machines children of abstract RaspiMachineClass hw/arm/raspi: Make board_rev a field of RaspiMachineClass hw/arm/raspi: Let class_init() directly call raspi_machine_init() hw/arm/raspi: Set default RAM size to size encoded in board revision hw/arm/raspi: Extract the board model from the board revision hw/arm/raspi: Use a unique raspi_machine_class_init() method hw/arm/raspi: Extract the cores count from the board revision Richard Henderson (20): target/arm: Add arm_mmu_idx_is_stage1_of_2 target/arm: Add mmu_idx for EL1 and EL2 w/ PAN enabled target/arm: Add isar_feature tests for PAN + ATS1E1 target/arm: Move LOR regdefs to file scope target/arm: Split out aarch32_cpsr_valid_mask target/arm: Mask CPSR_J when Jazelle is not enabled target/arm: Replace CPSR_ERET_MASK with aarch32_cpsr_valid_mask target/arm: Use aarch32_cpsr_valid_mask in helper_exception_return target/arm: Remove CPSR_RESERVED target/arm: Introduce aarch64_pstate_valid_mask target/arm: Update MSR access for PAN target/arm: Update arm_mmu_idx_el for PAN target/arm: Enforce PAN semantics in get_S1prot target/arm: Set PAN bit as required on exception entry target/arm: Implement ATS1E1 system registers target/arm: Enable ARMv8.2-ATS1E1 in -cpu max target/arm: Add ID_AA64MMFR2_EL1 target/arm: Update MSR access to UAO target/arm: Implement UAO semantics target/arm: Enable ARMv8.2-UAO in -cpu max Roman Kapl (2): i.MX: Fix inverted register bits in wdt code. i.MX: Add support for WDT on i.MX6 include/hw/arm/aspeed_soc.h | 6 + include/hw/arm/fsl-imx6.h | 3 + target/arm/cpu-param.h | 2 +- target/arm/cpu.h | 95 ++++++++--- target/arm/internals.h | 85 ++++++++++ hw/arm/aspeed_ast2600.c | 23 +++ hw/arm/aspeed_soc.c | 25 +++ hw/arm/fsl-imx6.c | 21 +++ hw/arm/raspi.c | 190 ++++++++++++++++------ hw/arm/virt-acpi-build.c | 25 +-- hw/char/exynos4210_uart.c | 5 +- hw/misc/imx2_wdt.c | 2 +- target/arm/cpu.c | 4 + target/arm/cpu64.c | 10 ++ target/arm/helper-a64.c | 6 +- target/arm/helper.c | 327 +++++++++++++++++++++++++++++--------- target/arm/kvm64.c | 2 + target/arm/op_helper.c | 14 +- target/arm/translate-a64.c | 31 ++++ target/arm/translate.c | 42 +++-- tests/data/acpi/virt/DSDT | Bin 18462 -> 5307 bytes tests/data/acpi/virt/DSDT.memhp | Bin 19799 -> 6644 bytes tests/data/acpi/virt/DSDT.numamem | Bin 18462 -> 5307 bytes 23 files changed, 731 insertions(+), 187 deletions(-) From: Roman Kapl <rka@sysgo.com> Documentation says for WDA '0: Assert WDOG output.' and for SRS '0: Assert system reset signal.'. Signed-off-by: Roman Kapl <rka@sysgo.com> Message-id: 20200207095409.11227-1-rka@sysgo.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/misc/imx2_wdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/misc/imx2_wdt.c b/hw/misc/imx2_wdt.c index XXXXXXX..XXXXXXX 100644 --- a/hw/misc/imx2_wdt.c +++ b/hw/misc/imx2_wdt.c @@ -XXX,XX +XXX,XX @@ static void imx2_wdt_write(void *opaque, hwaddr addr, uint64_t value, unsigned int size) { if (addr == IMX2_WDT_WCR && - (value & (IMX2_WDT_WCR_WDA | IMX2_WDT_WCR_SRS))) { + (~value & (IMX2_WDT_WCR_WDA | IMX2_WDT_WCR_SRS))) { watchdog_perform_action(); } } -- 2.20.1 From: Roman Kapl <rka@sysgo.com> Uses the i.MX2 rudimentary watchdog driver. Signed-off-by: Roman Kapl <rka@sysgo.com> Message-id: 20200207095529.11309-1-rka@sysgo.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: removed accidental duplicate #include line] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- include/hw/arm/fsl-imx6.h | 3 +++ hw/arm/fsl-imx6.c | 21 +++++++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/include/hw/arm/fsl-imx6.h b/include/hw/arm/fsl-imx6.h index XXXXXXX..XXXXXXX 100644 --- a/include/hw/arm/fsl-imx6.h +++ b/include/hw/arm/fsl-imx6.h @@ -XXX,XX +XXX,XX @@ #include "hw/cpu/a9mpcore.h" #include "hw/misc/imx6_ccm.h" #include "hw/misc/imx6_src.h" +#include "hw/misc/imx2_wdt.h" #include "hw/char/imx_serial.h" #include "hw/timer/imx_gpt.h" #include "hw/timer/imx_epit.h" @@ -XXX,XX +XXX,XX @@ #define FSL_IMX6_NUM_GPIOS 7 #define FSL_IMX6_NUM_ESDHCS 4 #define FSL_IMX6_NUM_ECSPIS 5 +#define FSL_IMX6_NUM_WDTS 2 typedef struct FslIMX6State { /*< private >*/ @@ -XXX,XX +XXX,XX @@ typedef struct FslIMX6State { IMXGPIOState gpio[FSL_IMX6_NUM_GPIOS]; SDHCIState esdhc[FSL_IMX6_NUM_ESDHCS]; IMXSPIState spi[FSL_IMX6_NUM_ECSPIS]; + IMX2WdtState wdt[FSL_IMX6_NUM_WDTS]; IMXFECState eth; MemoryRegion rom; MemoryRegion caam; diff --git a/hw/arm/fsl-imx6.c b/hw/arm/fsl-imx6.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/fsl-imx6.c +++ b/hw/arm/fsl-imx6.c @@ -XXX,XX +XXX,XX @@ static void fsl_imx6_init(Object *obj) sysbus_init_child_obj(obj, name, &s->spi[i], sizeof(s->spi[i]), TYPE_IMX_SPI); } + for (i = 0; i < FSL_IMX6_NUM_WDTS; i++) { + snprintf(name, NAME_SIZE, "wdt%d", i); + sysbus_init_child_obj(obj, name, &s->wdt[i], sizeof(s->wdt[i]), + TYPE_IMX2_WDT); + } + sysbus_init_child_obj(obj, "eth", &s->eth, sizeof(s->eth), TYPE_IMX_ENET); } @@ -XXX,XX +XXX,XX @@ static void fsl_imx6_realize(DeviceState *dev, Error **errp) qdev_get_gpio_in(DEVICE(&s->a9mpcore), FSL_IMX6_ENET_MAC_1588_IRQ)); + /* + * Watchdog + */ + for (i = 0; i < FSL_IMX6_NUM_WDTS; i++) { + static const hwaddr FSL_IMX6_WDOGn_ADDR[FSL_IMX6_NUM_WDTS] = { + FSL_IMX6_WDOG1_ADDR, + FSL_IMX6_WDOG2_ADDR, + }; + + object_property_set_bool(OBJECT(&s->wdt[i]), true, "realized", + &error_abort); + + sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt[i]), 0, FSL_IMX6_WDOGn_ADDR[i]); + } + /* ROM memory */ memory_region_init_rom(&s->rom, NULL, "imx6.rom", FSL_IMX6_ROM_SIZE, &err); -- 2.20.1 From: Heyi Guo <guoheyi@huawei.com> We are going to change ARM virt ACPI DSDT table, which will cause make check to fail, so temporarily add related golden masters to ignore list. Signed-off-by: Heyi Guo <guoheyi@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20200204014325.16279-2-guoheyi@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- tests/qtest/bios-tables-test-allowed-diff.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h index XXXXXXX..XXXXXXX 100644 --- a/tests/qtest/bios-tables-test-allowed-diff.h +++ b/tests/qtest/bios-tables-test-allowed-diff.h @@ -1 +1,4 @@ /* List of comma-separated changed AML files to ignore */ +"tests/data/acpi/virt/DSDT", +"tests/data/acpi/virt/DSDT.memhp", +"tests/data/acpi/virt/DSDT.numamem", -- 2.20.1 From: Heyi Guo <guoheyi@huawei.com> The sub device "RP0" under PCI0 in ACPI/DSDT does not contain any method or property other than "_ADR", so it is safe to remove it. Signed-off-by: Heyi Guo <guoheyi@huawei.com> Acked-by: "Michael S. Tsirkin" <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20200204014325.16279-3-guoheyi@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/virt-acpi-build.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -XXX,XX +XXX,XX @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, aml_append(method, aml_return(buf)); aml_append(dev, method); - Aml *dev_rp0 = aml_device("%s", "RP0"); - aml_append(dev_rp0, aml_name_decl("_ADR", aml_int(0))); - aml_append(dev, dev_rp0); - Aml *dev_res0 = aml_device("%s", "RES0"); aml_append(dev_res0, aml_name_decl("_HID", aml_string("PNP0C02"))); crs = aml_resource_template(); -- 2.20.1 From: Heyi Guo <guoheyi@huawei.com> According to ACPI spec, _ADR should be used for device on a bus that has a standard enumeration algorithm, but not for device which is on system bus and must be enumerated by OSPM. And it is not recommended to contain both _HID and _ADR in a single device. See ACPI 6.3, section 6.1, top of page 343: A device object must contain either an _HID object or an _ADR object, but should not contain both. (https://uefi.org/sites/default/files/resources/ACPI_6_3_May16.pdf) Signed-off-by: Heyi Guo <guoheyi@huawei.com> Acked-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20200204014325.16279-4-guoheyi@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/virt-acpi-build.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -XXX,XX +XXX,XX @@ static void acpi_dsdt_add_uart(Aml *scope, const MemMapEntry *uart_memmap, AML_EXCLUSIVE, &uart_irq, 1)); aml_append(dev, aml_name_decl("_CRS", crs)); - /* The _ADR entry is used to link this device to the UART described - * in the SPCR table, i.e. SPCR.base_address.address == _ADR. - */ - aml_append(dev, aml_name_decl("_ADR", aml_int(uart_memmap->base))); - aml_append(scope, dev); } @@ -XXX,XX +XXX,XX @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, aml_append(dev, aml_name_decl("_CID", aml_string("PNP0A03"))); aml_append(dev, aml_name_decl("_SEG", aml_int(0))); aml_append(dev, aml_name_decl("_BBN", aml_int(0))); - aml_append(dev, aml_name_decl("_ADR", aml_int(0))); aml_append(dev, aml_name_decl("_UID", aml_string("PCI0"))); aml_append(dev, aml_name_decl("_STR", aml_unicode("PCIe 0 Device"))); aml_append(dev, aml_name_decl("_CCA", aml_int(1))); @@ -XXX,XX +XXX,XX @@ static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap, { Aml *dev = aml_device("GPO0"); aml_append(dev, aml_name_decl("_HID", aml_string("ARMH0061"))); - aml_append(dev, aml_name_decl("_ADR", aml_int(0))); aml_append(dev, aml_name_decl("_UID", aml_int(0))); Aml *crs = aml_resource_template(); @@ -XXX,XX +XXX,XX @@ static void acpi_dsdt_add_power_button(Aml *scope) { Aml *dev = aml_device(ACPI_POWER_BUTTON_DEVICE); aml_append(dev, aml_name_decl("_HID", aml_string("PNP0C0C"))); - aml_append(dev, aml_name_decl("_ADR", aml_int(0))); aml_append(dev, aml_name_decl("_UID", aml_int(0))); aml_append(scope, dev); } -- 2.20.1 From: Heyi Guo <guoheyi@huawei.com> The address field in each _PRT mapping package should be constructed with high word for device# and low word for function#, so it is wrong to use bus_no as the high word. The existing code adds a bunch useless entries with device #s above 31. Enumerate all possible slots (i.e. PCI_SLOT_MAX) instead. Signed-off-by: Heyi Guo <guoheyi@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20200204014325.16279-5-guoheyi@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/virt-acpi-build.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -XXX,XX +XXX,XX @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, { int ecam_id = VIRT_ECAM_ID(highmem_ecam); Aml *method, *crs, *ifctx, *UUID, *ifctx1, *elsectx, *buf; - int i, bus_no; + int i, slot_no; hwaddr base_mmio = memmap[VIRT_PCIE_MMIO].base; hwaddr size_mmio = memmap[VIRT_PCIE_MMIO].size; hwaddr base_pio = memmap[VIRT_PCIE_PIO].base; @@ -XXX,XX +XXX,XX @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, aml_append(dev, aml_name_decl("_CCA", aml_int(1))); /* Declare the PCI Routing Table. */ - Aml *rt_pkg = aml_varpackage(nr_pcie_buses * PCI_NUM_PINS); - for (bus_no = 0; bus_no < nr_pcie_buses; bus_no++) { + Aml *rt_pkg = aml_varpackage(PCI_SLOT_MAX * PCI_NUM_PINS); + for (slot_no = 0; slot_no < PCI_SLOT_MAX; slot_no++) { for (i = 0; i < PCI_NUM_PINS; i++) { - int gsi = (i + bus_no) % PCI_NUM_PINS; + int gsi = (i + slot_no) % PCI_NUM_PINS; Aml *pkg = aml_package(4); - aml_append(pkg, aml_int((bus_no << 16) | 0xFFFF)); + aml_append(pkg, aml_int((slot_no << 16) | 0xFFFF)); aml_append(pkg, aml_int(i)); aml_append(pkg, aml_name("GSI%d", gsi)); aml_append(pkg, aml_int(0)); -- 2.20.1 From: Heyi Guo <guoheyi@huawei.com> Using _UID of 0 for all PCI interrupt link devices absolutely violates the spec. Simply increase one by one. Signed-off-by: Heyi Guo <guoheyi@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20200204014325.16279-6-guoheyi@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/virt-acpi-build.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -XXX,XX +XXX,XX @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, uint32_t irqs = irq + i; Aml *dev_gsi = aml_device("GSI%d", i); aml_append(dev_gsi, aml_name_decl("_HID", aml_string("PNP0C0F"))); - aml_append(dev_gsi, aml_name_decl("_UID", aml_int(0))); + aml_append(dev_gsi, aml_name_decl("_UID", aml_int(i))); crs = aml_resource_template(); aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH, -- 2.20.1 From: Heyi Guo <guoheyi@huawei.com> The original code defines a named object for the resource template but then returns the resource template object itself; the resulted output is like below: Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings { Name (RBUF, ResourceTemplate () { WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode, 0x0000, // Granularity 0x0000, // Range Minimum 0x00FF, // Range Maximum 0x0000, // Translation Offset 0x0100, // Length ,, ) ...... }) Return (ResourceTemplate () { WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode, 0x0000, // Granularity 0x0000, // Range Minimum 0x00FF, // Range Maximum 0x0000, // Translation Offset 0x0100, // Length ,, ) ...... }) } So the named object "RBUF" is actually useless. The more natural way is to return RBUF instead, or simply drop RBUF definition. Choose the latter one to simplify the code. Signed-off-by: Heyi Guo <guoheyi@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20200204014325.16279-7-guoheyi@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/virt-acpi-build.c | 1 - 1 file changed, 1 deletion(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -XXX,XX +XXX,XX @@ static void acpi_dsdt_add_pci(Aml *scope, const MemMapEntry *memmap, size_mmio_high)); } - aml_append(method, aml_name_decl("RBUF", rbuf)); aml_append(method, aml_return(rbuf)); aml_append(dev, method); -- 2.20.1 From: Heyi Guo <guoheyi@huawei.com> Differences between disassembled ASL files: @@ -XXX,XX +XXX,XX @@ * * Disassembling to symbolic ASL+ operators * - * Disassembly of DSDT, Thu Jan 23 16:00:04 2020 + * Disassembly of DSDT.new, Thu Jan 23 16:47:12 2020 * * Original Table Header: * Signature "DSDT" - * Length 0x0000481E (18462) + * Length 0x000014BB (5307) * Revision 0x02 - * Checksum 0x60 + * Checksum 0xD1 * OEM ID "BOCHS " * OEM Table ID "BXPCDSDT" * OEM Revision 0x00000001 (1) @@ -XXX,XX +XXX,XX @@ DefinitionBlock ("", "DSDT", 2, "BOCHS ", "BXPCDSDT", 0x00000001) 0x00000021, } }) - Name (_ADR, 0x09000000) // _ADR: Address } Device (FLS0) @@ -XXX,XX +XXX,XX @@ DefinitionBlock ("", "DSDT", 2, "BOCHS ", "BXPCDSDT", 0x00000001) Name (_CID, "PNP0A03" /* PCI Bus */) // _CID: Compatible ID Name (_SEG, Zero) // _SEG: PCI Segment Name (_BBN, Zero) // _BBN: BIOS Bus Number - Name (_ADR, Zero) // _ADR: Address Name (_UID, "PCI0") // _UID: Unique ID Name (_STR, Unicode ("PCIe 0 Device")) // _STR: Description String Name (_CCA, One) // _CCA: Cache Coherency Attribute - Name (_PRT, Package (0x0400) // _PRT: PCI Routing Table + Name (_PRT, Package (0x80) // _PRT: PCI Routing Table { Package (0x04) { @@ -XXX,XX +XXX,XX @@ DefinitionBlock ("", "DSDT", 2, "BOCHS ", "BXPCDSDT", 0x00000001) 0x03, GSI2, Zero - }, - - Package (0x04) - { - 0x0020FFFF, - Zero, - GSI0, - Zero - }, - - *Omit the other (4 * (256 - 32) - 2) packages* - - Package (0x04) - { - 0x00FFFFFF, - 0x03, - GSI2, - Zero } }) Device (GSI0) @@ -XXX,XX +XXX,XX @@ DefinitionBlock ("", "DSDT", 2, "BOCHS ", "BXPCDSDT", 0x00000001) Device (GSI1) { Name (_HID, "PNP0C0F" /* PCI Interrupt Link Device */) // _HID: Hardware ID - Name (_UID, Zero) // _UID: Unique ID + Name (_UID, One) // _UID: Unique ID Name (_PRS, ResourceTemplate () // _PRS: Possible Resource Settings { Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, ,, ) @@ -XXX,XX +XXX,XX @@ DefinitionBlock ("", "DSDT", 2, "BOCHS ", "BXPCDSDT", 0x00000001) Device (GSI2) { Name (_HID, "PNP0C0F" /* PCI Interrupt Link Device */) // _HID: Hardware ID - Name (_UID, Zero) // _UID: Unique ID + Name (_UID, 0x02) // _UID: Unique ID Name (_PRS, ResourceTemplate () // _PRS: Possible Resource Settings { Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, ,, ) @@ -XXX,XX +XXX,XX @@ DefinitionBlock ("", "DSDT", 2, "BOCHS ", "BXPCDSDT", 0x00000001) Device (GSI3) { Name (_HID, "PNP0C0F" /* PCI Interrupt Link Device */) // _HID: Hardware ID - Name (_UID, Zero) // _UID: Unique ID + Name (_UID, 0x03) // _UID: Unique ID Name (_PRS, ResourceTemplate () // _PRS: Possible Resource Settings { Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive, ,, ) @@ -XXX,XX +XXX,XX @@ DefinitionBlock ("", "DSDT", 2, "BOCHS ", "BXPCDSDT", 0x00000001) Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings { - Name (RBUF, ResourceTemplate () - { - WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode, - 0x0000, // Granularity - 0x0000, // Range Minimum - 0x00FF, // Range Maximum - 0x0000, // Translation Offset - 0x0100, // Length - ,, ) - DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, NonCacheable, ReadWrite, - 0x00000000, // Granularity - 0x10000000, // Range Minimum - 0x3EFEFFFF, // Range Maximum - 0x00000000, // Translation Offset - 0x2EFF0000, // Length - ,, , AddressRangeMemory, TypeStatic) - DWordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange, - 0x00000000, // Granularity - 0x00000000, // Range Minimum - 0x0000FFFF, // Range Maximum - 0x3EFF0000, // Translation Offset - 0x00010000, // Length - ,, , TypeStatic, DenseTranslation) - QWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, NonCacheable, ReadWrite, - 0x0000000000000000, // Granularity - 0x0000008000000000, // Range Minimum - 0x000000FFFFFFFFFF, // Range Maximum - 0x0000000000000000, // Translation Offset - 0x0000008000000000, // Length - ,, , AddressRangeMemory, TypeStatic) - }) Return (ResourceTemplate () { WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode, @@ -XXX,XX +XXX,XX @@ DefinitionBlock ("", "DSDT", 2, "BOCHS ", "BXPCDSDT", 0x00000001) }) } - Device (RP0) - { - Name (_ADR, Zero) // _ADR: Address - } - Device (RES0) { Name (_HID, "PNP0C02" /* PNP Motherboard Resources */) // _HID: Hardware ID @@ -XXX,XX +XXX,XX @@ DefinitionBlock ("", "DSDT", 2, "BOCHS ", "BXPCDSDT", 0x00000001) Device (PWRB) { Name (_HID, "PNP0C0C" /* Power Button Device */) // _HID: Hardware ID - Name (_ADR, Zero) // _ADR: Address Name (_UID, Zero) // _UID: Unique ID } } The differences between the two versions of DSDT.memhp are almost the same as the above, except for total length and checksum. DSDT.numamem binary is just the same with DSDT on virt machine, so we don't show the differences again. Signed-off-by: Heyi Guo <guoheyi@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20200204014325.16279-8-guoheyi@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- tests/qtest/bios-tables-test-allowed-diff.h | 3 --- tests/data/acpi/virt/DSDT | Bin 18462 -> 5307 bytes tests/data/acpi/virt/DSDT.memhp | Bin 19799 -> 6644 bytes tests/data/acpi/virt/DSDT.numamem | Bin 18462 -> 5307 bytes 4 files changed, 3 deletions(-) diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h index XXXXXXX..XXXXXXX 100644 --- a/tests/qtest/bios-tables-test-allowed-diff.h +++ b/tests/qtest/bios-tables-test-allowed-diff.h @@ -1,4 +1 @@ /* List of comma-separated changed AML files to ignore */ -"tests/data/acpi/virt/DSDT", -"tests/data/acpi/virt/DSDT.memhp", -"tests/data/acpi/virt/DSDT.numamem", diff --git a/tests/data/acpi/virt/DSDT b/tests/data/acpi/virt/DSDT index XXXXXXX..XXXXXXX 100644 GIT binary patch delta 156 zcmbO?fpNDcmrJlq$Zin^2BwP>xulufJQ*iyC^K43^tIeLL4lLWeZ}O>oO+X=b6T<Z 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z){Y%iGN7e)Qd8c{Fs8N@EuJ$q)=9tW^BX58s$=t-TT8<`sg0!sac$wRw~Pn>0Sn~0 A00000 -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Use a common predicate for querying stage1-ness. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/internals.h | 18 ++++++++++++++++++ target/arm/helper.c | 8 +++----- 2 files changed, 21 insertions(+), 5 deletions(-) diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env) ARMMMUIdx arm_stage1_mmu_idx(CPUARMState *env); #endif +/** + * arm_mmu_idx_is_stage1_of_2: + * @mmu_idx: The ARMMMUIdx to test + * + * Return true if @mmu_idx is a NOTLB mmu_idx that is the + * first stage of a two stage regime. + */ +static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx mmu_idx) +{ + switch (mmu_idx) { + case ARMMMUIdx_Stage1_E0: + case ARMMMUIdx_Stage1_E1: + return true; + default: + return false; + } +} + /* * Parameters of a given virtual address, as extracted from the * translation control register (TCR) for a given regime. diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value, bool take_exc = false; if (fi.s1ptw && current_el == 1 && !arm_is_secure(env) - && (mmu_idx == ARMMMUIdx_Stage1_E1 || - mmu_idx == ARMMMUIdx_Stage1_E0)) { + && arm_mmu_idx_is_stage1_of_2(mmu_idx)) { /* * Synchronous stage 2 fault on an access made as part of the * translation table walk for AT S1E0* or AT S1E1* insn @@ -XXX,XX +XXX,XX @@ static inline bool regime_translation_disabled(CPUARMState *env, } } - if ((env->cp15.hcr_el2 & HCR_DC) && - (mmu_idx == ARMMMUIdx_Stage1_E0 || mmu_idx == ARMMMUIdx_Stage1_E1)) { + if ((env->cp15.hcr_el2 & HCR_DC) && arm_mmu_idx_is_stage1_of_2(mmu_idx)) { /* HCR.DC means SCTLR_EL1.M behaves as 0 */ return true; } @@ -XXX,XX +XXX,XX @@ static hwaddr S1_ptw_translate(CPUARMState *env, ARMMMUIdx mmu_idx, hwaddr addr, MemTxAttrs txattrs, ARMMMUFaultInfo *fi) { - if ((mmu_idx == ARMMMUIdx_Stage1_E0 || mmu_idx == ARMMMUIdx_Stage1_E1) && + if (arm_mmu_idx_is_stage1_of_2(mmu_idx) && !regime_translation_disabled(env, ARMMMUIdx_Stage2)) { target_ulong s2size; hwaddr s2pa; -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> To implement PAN, we will want to swap, for short periods of time, to a different privileged mmu_idx. In addition, we cannot do this with flushing alone, because the AT* instructions have both PAN and PAN-less versions. Add the ARMMMUIdx*_PAN constants where necessary next to the corresponding ARMMMUIdx* constant. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-3-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu-param.h | 2 +- target/arm/cpu.h | 33 ++++++++++++++------- target/arm/internals.h | 9 ++++++ target/arm/helper.c | 60 +++++++++++++++++++++++++++++++------- target/arm/translate-a64.c | 3 ++ target/arm/translate.c | 2 ++ 6 files changed, 87 insertions(+), 22 deletions(-) diff --git a/target/arm/cpu-param.h b/target/arm/cpu-param.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu-param.h +++ b/target/arm/cpu-param.h @@ -XXX,XX +XXX,XX @@ # define TARGET_PAGE_BITS_MIN 10 #endif -#define NB_MMU_MODES 9 +#define NB_MMU_MODES 12 #endif diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ bool write_cpustate_to_list(ARMCPU *cpu, bool kvm_sync); * 5. we want to be able to use the TLB for accesses done as part of a * stage1 page table walk, rather than having to walk the stage2 page * table over and over. + * 6. we need separate EL1/EL2 mmu_idx for handling the Privileged Access + * Never (PAN) bit within PSTATE. * * This gives us the following list of cases: * * NS EL0 EL1&0 stage 1+2 (aka NS PL0) * NS EL1 EL1&0 stage 1+2 (aka NS PL1) + * NS EL1 EL1&0 stage 1+2 +PAN * NS EL0 EL2&0 - * NS EL2 EL2&0 + * NS EL2 EL2&0 +PAN * NS EL2 (aka NS PL2) * S EL0 EL1&0 (aka S PL0) * S EL1 EL1&0 (not used if EL3 is 32 bit) + * S EL1 EL1&0 +PAN * S EL3 (aka S PL1) * NS EL1&0 stage 2 * - * for a total of 9 different mmu_idx. + * for a total of 12 different mmu_idx. * * R profile CPUs have an MPU, but can use the same set of MMU indexes * as A profile. They only need to distinguish NS EL0 and NS EL1 (and @@ -XXX,XX +XXX,XX @@ typedef enum ARMMMUIdx { /* * A-profile. */ - ARMMMUIdx_E10_0 = 0 | ARM_MMU_IDX_A, - ARMMMUIdx_E20_0 = 1 | ARM_MMU_IDX_A, + ARMMMUIdx_E10_0 = 0 | ARM_MMU_IDX_A, + ARMMMUIdx_E20_0 = 1 | ARM_MMU_IDX_A, - ARMMMUIdx_E10_1 = 2 | ARM_MMU_IDX_A, + ARMMMUIdx_E10_1 = 2 | ARM_MMU_IDX_A, + ARMMMUIdx_E10_1_PAN = 3 | ARM_MMU_IDX_A, - ARMMMUIdx_E2 = 3 | ARM_MMU_IDX_A, - ARMMMUIdx_E20_2 = 4 | ARM_MMU_IDX_A, + ARMMMUIdx_E2 = 4 | ARM_MMU_IDX_A, + ARMMMUIdx_E20_2 = 5 | ARM_MMU_IDX_A, + ARMMMUIdx_E20_2_PAN = 6 | ARM_MMU_IDX_A, - ARMMMUIdx_SE10_0 = 5 | ARM_MMU_IDX_A, - ARMMMUIdx_SE10_1 = 6 | ARM_MMU_IDX_A, - ARMMMUIdx_SE3 = 7 | ARM_MMU_IDX_A, + ARMMMUIdx_SE10_0 = 7 | ARM_MMU_IDX_A, + ARMMMUIdx_SE10_1 = 8 | ARM_MMU_IDX_A, + ARMMMUIdx_SE10_1_PAN = 9 | ARM_MMU_IDX_A, + ARMMMUIdx_SE3 = 10 | ARM_MMU_IDX_A, - ARMMMUIdx_Stage2 = 8 | ARM_MMU_IDX_A, + ARMMMUIdx_Stage2 = 11 | ARM_MMU_IDX_A, /* * These are not allocated TLBs and are used only for AT system @@ -XXX,XX +XXX,XX @@ typedef enum ARMMMUIdx { */ ARMMMUIdx_Stage1_E0 = 0 | ARM_MMU_IDX_NOTLB, ARMMMUIdx_Stage1_E1 = 1 | ARM_MMU_IDX_NOTLB, + ARMMMUIdx_Stage1_E1_PAN = 2 | ARM_MMU_IDX_NOTLB, /* * M-profile. @@ -XXX,XX +XXX,XX @@ typedef enum ARMMMUIdxBit { TO_CORE_BIT(E10_0), TO_CORE_BIT(E20_0), TO_CORE_BIT(E10_1), + TO_CORE_BIT(E10_1_PAN), TO_CORE_BIT(E2), TO_CORE_BIT(E20_2), + TO_CORE_BIT(E20_2_PAN), TO_CORE_BIT(SE10_0), TO_CORE_BIT(SE10_1), + TO_CORE_BIT(SE10_1_PAN), TO_CORE_BIT(SE3), TO_CORE_BIT(Stage2), diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline bool regime_has_2_ranges(ARMMMUIdx mmu_idx) switch (mmu_idx) { case ARMMMUIdx_Stage1_E0: case ARMMMUIdx_Stage1_E1: + case ARMMMUIdx_Stage1_E1_PAN: case ARMMMUIdx_E10_0: case ARMMMUIdx_E10_1: + case ARMMMUIdx_E10_1_PAN: case ARMMMUIdx_E20_0: case ARMMMUIdx_E20_2: + case ARMMMUIdx_E20_2_PAN: case ARMMMUIdx_SE10_0: case ARMMMUIdx_SE10_1: + case ARMMMUIdx_SE10_1_PAN: return true; default: return false; @@ -XXX,XX +XXX,XX @@ static inline bool regime_is_secure(CPUARMState *env, ARMMMUIdx mmu_idx) switch (mmu_idx) { case ARMMMUIdx_E10_0: case ARMMMUIdx_E10_1: + case ARMMMUIdx_E10_1_PAN: case ARMMMUIdx_E20_0: case ARMMMUIdx_E20_2: + case ARMMMUIdx_E20_2_PAN: case ARMMMUIdx_Stage1_E0: case ARMMMUIdx_Stage1_E1: + case ARMMMUIdx_Stage1_E1_PAN: case ARMMMUIdx_E2: case ARMMMUIdx_Stage2: case ARMMMUIdx_MPrivNegPri: @@ -XXX,XX +XXX,XX @@ static inline bool regime_is_secure(CPUARMState *env, ARMMMUIdx mmu_idx) case ARMMMUIdx_SE3: case ARMMMUIdx_SE10_0: case ARMMMUIdx_SE10_1: + case ARMMMUIdx_SE10_1_PAN: case ARMMMUIdx_MSPrivNegPri: case ARMMMUIdx_MSUserNegPri: case ARMMMUIdx_MSPriv: @@ -XXX,XX +XXX,XX @@ static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx mmu_idx) switch (mmu_idx) { case ARMMMUIdx_Stage1_E0: case ARMMMUIdx_Stage1_E1: + case ARMMMUIdx_Stage1_E1_PAN: return true; default: return false; diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static void tlbiall_nsnh_write(CPUARMState *env, const ARMCPRegInfo *ri, tlb_flush_by_mmuidx(cs, ARMMMUIdxBit_E10_1 | + ARMMMUIdxBit_E10_1_PAN | ARMMMUIdxBit_E10_0 | ARMMMUIdxBit_Stage2); } @@ -XXX,XX +XXX,XX @@ static void tlbiall_nsnh_is_write(CPUARMState *env, const ARMCPRegInfo *ri, tlb_flush_by_mmuidx_all_cpus_synced(cs, ARMMMUIdxBit_E10_1 | + ARMMMUIdxBit_E10_1_PAN | ARMMMUIdxBit_E10_0 | ARMMMUIdxBit_Stage2); } @@ -XXX,XX +XXX,XX @@ static int gt_phys_redir_timeridx(CPUARMState *env) switch (arm_mmu_idx(env)) { case ARMMMUIdx_E20_0: case ARMMMUIdx_E20_2: + case ARMMMUIdx_E20_2_PAN: return GTIMER_HYP; default: return GTIMER_PHYS; @@ -XXX,XX +XXX,XX @@ static int gt_virt_redir_timeridx(CPUARMState *env) switch (arm_mmu_idx(env)) { case ARMMMUIdx_E20_0: case ARMMMUIdx_E20_2: + case ARMMMUIdx_E20_2_PAN: return GTIMER_HYPVIRT; default: return GTIMER_VIRT; @@ -XXX,XX +XXX,XX @@ static uint64_t do_ats_write(CPUARMState *env, uint64_t value, format64 = arm_s1_regime_using_lpae_format(env, mmu_idx); if (arm_feature(env, ARM_FEATURE_EL2)) { - if (mmu_idx == ARMMMUIdx_E10_0 || mmu_idx == ARMMMUIdx_E10_1) { + if (mmu_idx == ARMMMUIdx_E10_0 || + mmu_idx == ARMMMUIdx_E10_1 || + mmu_idx == ARMMMUIdx_E10_1_PAN) { format64 |= env->cp15.hcr_el2 & (HCR_VM | HCR_DC); } else { format64 |= arm_current_el(env) == 2; @@ -XXX,XX +XXX,XX @@ static void vmsa_tcr_ttbr_el2_write(CPUARMState *env, const ARMCPRegInfo *ri, if (extract64(raw_read(env, ri) ^ value, 48, 16) && (arm_hcr_el2_eff(env) & HCR_E2H)) { tlb_flush_by_mmuidx(env_cpu(env), - ARMMMUIdxBit_E20_2 | ARMMMUIdxBit_E20_0); + ARMMMUIdxBit_E20_2 | + ARMMMUIdxBit_E20_2_PAN | + ARMMMUIdxBit_E20_0); } raw_write(env, ri, value); } @@ -XXX,XX +XXX,XX @@ static void vttbr_write(CPUARMState *env, const ARMCPRegInfo *ri, if (raw_read(env, ri) != value) { tlb_flush_by_mmuidx(cs, ARMMMUIdxBit_E10_1 | + ARMMMUIdxBit_E10_1_PAN | ARMMMUIdxBit_E10_0 | ARMMMUIdxBit_Stage2); raw_write(env, ri, value); @@ -XXX,XX +XXX,XX @@ static int vae1_tlbmask(CPUARMState *env) { /* Since we exclude secure first, we may read HCR_EL2 directly. */ if (arm_is_secure_below_el3(env)) { - return ARMMMUIdxBit_SE10_1 | ARMMMUIdxBit_SE10_0; + return ARMMMUIdxBit_SE10_1 | + ARMMMUIdxBit_SE10_1_PAN | + ARMMMUIdxBit_SE10_0; } else if ((env->cp15.hcr_el2 & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { - return ARMMMUIdxBit_E20_2 | ARMMMUIdxBit_E20_0; + return ARMMMUIdxBit_E20_2 | + ARMMMUIdxBit_E20_2_PAN | + ARMMMUIdxBit_E20_0; } else { - return ARMMMUIdxBit_E10_1 | ARMMMUIdxBit_E10_0; + return ARMMMUIdxBit_E10_1 | + ARMMMUIdxBit_E10_1_PAN | + ARMMMUIdxBit_E10_0; } } @@ -XXX,XX +XXX,XX @@ static int alle1_tlbmask(CPUARMState *env) * stage 1 translations. */ if (arm_is_secure_below_el3(env)) { - return ARMMMUIdxBit_SE10_1 | ARMMMUIdxBit_SE10_0; + return ARMMMUIdxBit_SE10_1 | + ARMMMUIdxBit_SE10_1_PAN | + ARMMMUIdxBit_SE10_0; } else if (arm_feature(env, ARM_FEATURE_EL2)) { - return ARMMMUIdxBit_E10_1 | ARMMMUIdxBit_E10_0 | ARMMMUIdxBit_Stage2; + return ARMMMUIdxBit_E10_1 | + ARMMMUIdxBit_E10_1_PAN | + ARMMMUIdxBit_E10_0 | + ARMMMUIdxBit_Stage2; } else { - return ARMMMUIdxBit_E10_1 | ARMMMUIdxBit_E10_0; + return ARMMMUIdxBit_E10_1 | + ARMMMUIdxBit_E10_1_PAN | + ARMMMUIdxBit_E10_0; } } static int e2_tlbmask(CPUARMState *env) { /* TODO: ARMv8.4-SecEL2 */ - return ARMMMUIdxBit_E20_0 | ARMMMUIdxBit_E20_2 | ARMMMUIdxBit_E2; + return ARMMMUIdxBit_E20_0 | + ARMMMUIdxBit_E20_2 | + ARMMMUIdxBit_E20_2_PAN | + ARMMMUIdxBit_E2; } static void tlbi_aa64_alle1_write(CPUARMState *env, const ARMCPRegInfo *ri, @@ -XXX,XX +XXX,XX @@ static uint32_t regime_el(CPUARMState *env, ARMMMUIdx mmu_idx) switch (mmu_idx) { case ARMMMUIdx_E20_0: case ARMMMUIdx_E20_2: + case ARMMMUIdx_E20_2_PAN: case ARMMMUIdx_Stage2: case ARMMMUIdx_E2: return 2; @@ -XXX,XX +XXX,XX @@ static uint32_t regime_el(CPUARMState *env, ARMMMUIdx mmu_idx) case ARMMMUIdx_SE10_0: return arm_el_is_aa64(env, 3) ? 1 : 3; case ARMMMUIdx_SE10_1: + case ARMMMUIdx_SE10_1_PAN: case ARMMMUIdx_Stage1_E0: case ARMMMUIdx_Stage1_E1: + case ARMMMUIdx_Stage1_E1_PAN: case ARMMMUIdx_E10_0: case ARMMMUIdx_E10_1: + case ARMMMUIdx_E10_1_PAN: case ARMMMUIdx_MPrivNegPri: case ARMMMUIdx_MUserNegPri: case ARMMMUIdx_MPriv: @@ -XXX,XX +XXX,XX @@ static inline ARMMMUIdx stage_1_mmu_idx(ARMMMUIdx mmu_idx) return ARMMMUIdx_Stage1_E0; case ARMMMUIdx_E10_1: return ARMMMUIdx_Stage1_E1; + case ARMMMUIdx_E10_1_PAN: + return ARMMMUIdx_Stage1_E1_PAN; default: return mmu_idx; } @@ -XXX,XX +XXX,XX @@ static inline bool regime_is_user(CPUARMState *env, ARMMMUIdx mmu_idx) return false; case ARMMMUIdx_E10_0: case ARMMMUIdx_E10_1: + case ARMMMUIdx_E10_1_PAN: g_assert_not_reached(); } } @@ -XXX,XX +XXX,XX @@ bool get_phys_addr(CPUARMState *env, target_ulong address, target_ulong *page_size, ARMMMUFaultInfo *fi, ARMCacheAttrs *cacheattrs) { - if (mmu_idx == ARMMMUIdx_E10_0 || mmu_idx == ARMMMUIdx_E10_1) { + if (mmu_idx == ARMMMUIdx_E10_0 || + mmu_idx == ARMMMUIdx_E10_1 || + mmu_idx == ARMMMUIdx_E10_1_PAN) { /* Call ourselves recursively to do the stage 1 and then stage 2 * translations. */ @@ -XXX,XX +XXX,XX @@ int arm_mmu_idx_to_el(ARMMMUIdx mmu_idx) case ARMMMUIdx_SE10_0: return 0; case ARMMMUIdx_E10_1: + case ARMMMUIdx_E10_1_PAN: case ARMMMUIdx_SE10_1: + case ARMMMUIdx_SE10_1_PAN: return 1; case ARMMMUIdx_E2: case ARMMMUIdx_E20_2: + case ARMMMUIdx_E20_2_PAN: return 2; case ARMMMUIdx_SE3: return 3; @@ -XXX,XX +XXX,XX @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, /* TODO: ARMv8.2-UAO */ switch (mmu_idx) { case ARMMMUIdx_E10_1: + case ARMMMUIdx_E10_1_PAN: case ARMMMUIdx_SE10_1: + case ARMMMUIdx_SE10_1_PAN: /* TODO: ARMv8.3-NV */ flags = FIELD_DP32(flags, TBFLAG_A64, UNPRIV, 1); break; case ARMMMUIdx_E20_2: + case ARMMMUIdx_E20_2_PAN: /* TODO: ARMv8.4-SecEL2 */ /* * Note that E20_2 is gated by HCR_EL2.E2H == 1, but E20_0 is diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -XXX,XX +XXX,XX @@ static int get_a64_user_mem_index(DisasContext *s) */ switch (useridx) { case ARMMMUIdx_E10_1: + case ARMMMUIdx_E10_1_PAN: useridx = ARMMMUIdx_E10_0; break; case ARMMMUIdx_E20_2: + case ARMMMUIdx_E20_2_PAN: useridx = ARMMMUIdx_E20_0; break; case ARMMMUIdx_SE10_1: + case ARMMMUIdx_SE10_1_PAN: useridx = ARMMMUIdx_SE10_0; break; default: diff --git a/target/arm/translate.c b/target/arm/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -XXX,XX +XXX,XX @@ static inline int get_a32_user_mem_index(DisasContext *s) case ARMMMUIdx_E2: /* this one is UNPREDICTABLE */ case ARMMMUIdx_E10_0: case ARMMMUIdx_E10_1: + case ARMMMUIdx_E10_1_PAN: return arm_to_core_mmu_idx(ARMMMUIdx_E10_0); case ARMMMUIdx_SE3: case ARMMMUIdx_SE10_0: case ARMMMUIdx_SE10_1: + case ARMMMUIdx_SE10_1_PAN: return arm_to_core_mmu_idx(ARMMMUIdx_SE10_0); case ARMMMUIdx_MUser: case ARMMMUIdx_MPriv: -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Include definitions for all of the bits in ID_MMFR3. We already have a definition for ID_AA64MMFR1.PAN. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-4-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ FIELD(ID_ISAR6, FHM, 8, 4) FIELD(ID_ISAR6, SB, 12, 4) FIELD(ID_ISAR6, SPECRES, 16, 4) +FIELD(ID_MMFR3, CMAINTVA, 0, 4) +FIELD(ID_MMFR3, CMAINTSW, 4, 4) +FIELD(ID_MMFR3, BPMAINT, 8, 4) +FIELD(ID_MMFR3, MAINTBCST, 12, 4) +FIELD(ID_MMFR3, PAN, 16, 4) +FIELD(ID_MMFR3, COHWALK, 20, 4) +FIELD(ID_MMFR3, CMEMSZ, 24, 4) +FIELD(ID_MMFR3, SUPERSEC, 28, 4) + FIELD(ID_MMFR4, SPECSEI, 0, 4) FIELD(ID_MMFR4, AC2, 4, 4) FIELD(ID_MMFR4, XNX, 8, 4) @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa32_vminmaxnm(const ARMISARegisters *id) return FIELD_EX64(id->mvfr2, MVFR2, FPMISC) >= 4; } +static inline bool isar_feature_aa32_pan(const ARMISARegisters *id) +{ + return FIELD_EX64(id->mvfr0, ID_MMFR3, PAN) != 0; +} + +static inline bool isar_feature_aa32_ats1e1(const ARMISARegisters *id) +{ + return FIELD_EX64(id->mvfr0, ID_MMFR3, PAN) >= 2; +} + /* * 64-bit feature tests via id registers. */ @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa64_lor(const ARMISARegisters *id) return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, LO) != 0; } +static inline bool isar_feature_aa64_pan(const ARMISARegisters *id) +{ + return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, PAN) != 0; +} + +static inline bool isar_feature_aa64_ats1e1(const ARMISARegisters *id) +{ + return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, PAN) >= 2; +} + static inline bool isar_feature_aa64_bti(const ARMISARegisters *id) { return FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, BT) != 0; -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> For static const regdefs, file scope is preferred. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-5-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper.c | 57 +++++++++++++++++++++++---------------------- 1 file changed, 29 insertions(+), 28 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static CPAccessResult access_lor_other(CPUARMState *env, return access_lor_ns(env); } +/* + * A trivial implementation of ARMv8.1-LOR leaves all of these + * registers fixed at 0, which indicates that there are zero + * supported Limited Ordering regions. + */ +static const ARMCPRegInfo lor_reginfo[] = { + { .name = "LORSA_EL1", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 0, + .access = PL1_RW, .accessfn = access_lor_other, + .type = ARM_CP_CONST, .resetvalue = 0 }, + { .name = "LOREA_EL1", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 1, + .access = PL1_RW, .accessfn = access_lor_other, + .type = ARM_CP_CONST, .resetvalue = 0 }, + { .name = "LORN_EL1", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 2, + .access = PL1_RW, .accessfn = access_lor_other, + .type = ARM_CP_CONST, .resetvalue = 0 }, + { .name = "LORC_EL1", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 3, + .access = PL1_RW, .accessfn = access_lor_other, + .type = ARM_CP_CONST, .resetvalue = 0 }, + { .name = "LORID_EL1", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 7, + .access = PL1_R, .accessfn = access_lorid, + .type = ARM_CP_CONST, .resetvalue = 0 }, + REGINFO_SENTINEL +}; + #ifdef TARGET_AARCH64 static CPAccessResult access_pauth(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) } if (cpu_isar_feature(aa64_lor, cpu)) { - /* - * A trivial implementation of ARMv8.1-LOR leaves all of these - * registers fixed at 0, which indicates that there are zero - * supported Limited Ordering regions. - */ - static const ARMCPRegInfo lor_reginfo[] = { - { .name = "LORSA_EL1", .state = ARM_CP_STATE_AA64, - .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 0, - .access = PL1_RW, .accessfn = access_lor_other, - .type = ARM_CP_CONST, .resetvalue = 0 }, - { .name = "LOREA_EL1", .state = ARM_CP_STATE_AA64, - .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 1, - .access = PL1_RW, .accessfn = access_lor_other, - .type = ARM_CP_CONST, .resetvalue = 0 }, - { .name = "LORN_EL1", .state = ARM_CP_STATE_AA64, - .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 2, - .access = PL1_RW, .accessfn = access_lor_other, - .type = ARM_CP_CONST, .resetvalue = 0 }, - { .name = "LORC_EL1", .state = ARM_CP_STATE_AA64, - .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 3, - .access = PL1_RW, .accessfn = access_lor_other, - .type = ARM_CP_CONST, .resetvalue = 0 }, - { .name = "LORID_EL1", .state = ARM_CP_STATE_AA64, - .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 7, - .access = PL1_R, .accessfn = access_lorid, - .type = ARM_CP_CONST, .resetvalue = 0 }, - REGINFO_SENTINEL - }; define_arm_cp_regs(cpu, lor_reginfo); } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Split this helper out of msr_mask in translate.c. At the same time, transform the negative reductive logic to positive accumulative logic. It will be usable along the exception paths. While touching msr_mask, fix up formatting. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200208125816.14954-6-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/internals.h | 21 +++++++++++++++++++++ target/arm/translate.c | 40 +++++++++++++++++----------------------- 2 files changed, 38 insertions(+), 23 deletions(-) diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx mmu_idx) } } +static inline uint32_t aarch32_cpsr_valid_mask(uint64_t features, + const ARMISARegisters *id) +{ + uint32_t valid = CPSR_M | CPSR_AIF | CPSR_IL | CPSR_NZCV | CPSR_J; + + if ((features >> ARM_FEATURE_V4T) & 1) { + valid |= CPSR_T; + } + if ((features >> ARM_FEATURE_V5) & 1) { + valid |= CPSR_Q; /* V5TE in reality*/ + } + if ((features >> ARM_FEATURE_V6) & 1) { + valid |= CPSR_E | CPSR_GE; + } + if ((features >> ARM_FEATURE_THUMB2) & 1) { + valid |= CPSR_IT; + } + + return valid; +} + /* * Parameters of a given virtual address, as extracted from the * translation control register (TCR) for a given regime. diff --git a/target/arm/translate.c b/target/arm/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -XXX,XX +XXX,XX @@ static inline void gen_mulxy(TCGv_i32 t0, TCGv_i32 t1, int x, int y) /* Return the mask of PSR bits set by a MSR instruction. */ static uint32_t msr_mask(DisasContext *s, int flags, int spsr) { - uint32_t mask; + uint32_t mask = 0; - mask = 0; - if (flags & (1 << 0)) + if (flags & (1 << 0)) { mask |= 0xff; - if (flags & (1 << 1)) + } + if (flags & (1 << 1)) { mask |= 0xff00; - if (flags & (1 << 2)) + } + if (flags & (1 << 2)) { mask |= 0xff0000; - if (flags & (1 << 3)) + } + if (flags & (1 << 3)) { mask |= 0xff000000; + } - /* Mask out undefined bits. */ - mask &= ~CPSR_RESERVED; - if (!arm_dc_feature(s, ARM_FEATURE_V4T)) { - mask &= ~CPSR_T; - } - if (!arm_dc_feature(s, ARM_FEATURE_V5)) { - mask &= ~CPSR_Q; /* V5TE in reality*/ - } - if (!arm_dc_feature(s, ARM_FEATURE_V6)) { - mask &= ~(CPSR_E | CPSR_GE); - } - if (!arm_dc_feature(s, ARM_FEATURE_THUMB2)) { - mask &= ~CPSR_IT; - } - /* Mask out execution state and reserved bits. */ + /* Mask out undefined and reserved bits. */ + mask &= aarch32_cpsr_valid_mask(s->features, s->isar); + + /* Mask out execution state. */ if (!spsr) { - mask &= ~(CPSR_EXEC | CPSR_RESERVED); + mask &= ~CPSR_EXEC; } + /* Mask out privileged bits. */ - if (IS_USER(s)) + if (IS_USER(s)) { mask &= CPSR_USER; + } return mask; } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> The J bit signals Jazelle mode, and so of course is RES0 when the feature is not enabled. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200208125816.14954-7-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/internals.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline bool arm_mmu_idx_is_stage1_of_2(ARMMMUIdx mmu_idx) static inline uint32_t aarch32_cpsr_valid_mask(uint64_t features, const ARMISARegisters *id) { - uint32_t valid = CPSR_M | CPSR_AIF | CPSR_IL | CPSR_NZCV | CPSR_J; + uint32_t valid = CPSR_M | CPSR_AIF | CPSR_IL | CPSR_NZCV; if ((features >> ARM_FEATURE_V4T) & 1) { valid |= CPSR_T; @@ -XXX,XX +XXX,XX @@ static inline uint32_t aarch32_cpsr_valid_mask(uint64_t features, if ((features >> ARM_FEATURE_THUMB2) & 1) { valid |= CPSR_IT; } + if (isar_feature_jazelle(id)) { + valid |= CPSR_J; + } return valid; } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> CPSR_ERET_MASK was a useless renaming of CPSR_RESERVED. The function also takes into account bits that the cpu does not support. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-8-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 2 -- target/arm/op_helper.c | 5 ++++- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ void pmu_init(ARMCPU *cpu); #define CPSR_USER (CPSR_NZCV | CPSR_Q | CPSR_GE) /* Execution state bits. MRS read as zero, MSR writes ignored. */ #define CPSR_EXEC (CPSR_T | CPSR_IT | CPSR_J | CPSR_IL) -/* Mask of bits which may be set by exception return copying them from SPSR */ -#define CPSR_ERET_MASK (~CPSR_RESERVED) /* Bit definitions for M profile XPSR. Most are the same as CPSR. */ #define XPSR_EXCP 0x1ffU diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/op_helper.c +++ b/target/arm/op_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(cpsr_write)(CPUARMState *env, uint32_t val, uint32_t mask) /* Write the CPSR for a 32-bit exception return */ void HELPER(cpsr_write_eret)(CPUARMState *env, uint32_t val) { + uint32_t mask; + qemu_mutex_lock_iothread(); arm_call_pre_el_change_hook(env_archcpu(env)); qemu_mutex_unlock_iothread(); - cpsr_write(env, val, CPSR_ERET_MASK, CPSRWriteExceptionReturn); + mask = aarch32_cpsr_valid_mask(env->features, &env_archcpu(env)->isar); + cpsr_write(env, val, mask, CPSRWriteExceptionReturn); /* Generated code has already stored the new PC value, but * without masking out its low bits, because which bits need -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Using ~0 as the mask on the aarch64->aarch32 exception return was not even as correct as the CPSR_ERET_MASK that we had used on the aarch32->aarch32 exception return. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-9-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper-a64.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper-a64.c +++ b/target/arm/helper-a64.c @@ -XXX,XX +XXX,XX @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc) { int cur_el = arm_current_el(env); unsigned int spsr_idx = aarch64_banked_spsr_index(cur_el); - uint32_t spsr = env->banked_spsr[spsr_idx]; + uint32_t mask, spsr = env->banked_spsr[spsr_idx]; int new_el; bool return_to_aa64 = (spsr & PSTATE_nRW) == 0; @@ -XXX,XX +XXX,XX @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc) * will sort the register banks out for us, and we've already * caught all the bad-mode cases in el_from_spsr(). */ - cpsr_write(env, spsr, ~0, CPSRWriteRaw); + mask = aarch32_cpsr_valid_mask(env->features, &env_archcpu(env)->isar); + cpsr_write(env, spsr, mask, CPSRWriteRaw); if (!arm_singlestep_active(env)) { env->uncached_cpsr &= ~PSTATE_SS; } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> The only remaining use was in op_helper.c. Use PSTATE_SS directly, and move the commentary so that it is more obvious what is going on. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200208125816.14954-10-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 6 ------ target/arm/op_helper.c | 9 ++++++++- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ void pmu_init(ARMCPU *cpu); #define CPSR_IT_2_7 (0xfc00U) #define CPSR_GE (0xfU << 16) #define CPSR_IL (1U << 20) -/* Note that the RESERVED bits include bit 21, which is PSTATE_SS in - * an AArch64 SPSR but RES0 in AArch32 SPSR and CPSR. In QEMU we use - * env->uncached_cpsr bit 21 to store PSTATE.SS when executing in AArch32, - * where it is live state but not accessible to the AArch32 code. - */ -#define CPSR_RESERVED (0x7U << 21) #define CPSR_J (1U << 24) #define CPSR_IT_0_1 (3U << 25) #define CPSR_Q (1U << 27) diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/op_helper.c +++ b/target/arm/op_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(exception_bkpt_insn)(CPUARMState *env, uint32_t syndrome) uint32_t HELPER(cpsr_read)(CPUARMState *env) { - return cpsr_read(env) & ~(CPSR_EXEC | CPSR_RESERVED); + /* + * We store the ARMv8 PSTATE.SS bit in env->uncached_cpsr. + * This is convenient for populating SPSR_ELx, but must be + * hidden from aarch32 mode, where it is not visible. + * + * TODO: ARMv8.4-DIT -- need to move SS somewhere else. + */ + return cpsr_read(env) & ~(CPSR_EXEC | PSTATE_SS); } void HELPER(cpsr_write)(CPUARMState *env, uint32_t val, uint32_t mask) -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Use this along the exception return path, where we previously accepted any values. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-11-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/internals.h | 12 ++++++++++++ target/arm/helper-a64.c | 1 + 2 files changed, 13 insertions(+) diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline uint32_t aarch32_cpsr_valid_mask(uint64_t features, return valid; } +static inline uint32_t aarch64_pstate_valid_mask(const ARMISARegisters *id) +{ + uint32_t valid; + + valid = PSTATE_M | PSTATE_DAIF | PSTATE_IL | PSTATE_SS | PSTATE_NZCV; + if (isar_feature_aa64_bti(id)) { + valid |= PSTATE_BTYPE; + } + + return valid; +} + /* * Parameters of a given virtual address, as extracted from the * translation control register (TCR) for a given regime. diff --git a/target/arm/helper-a64.c b/target/arm/helper-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper-a64.c +++ b/target/arm/helper-a64.c @@ -XXX,XX +XXX,XX @@ void HELPER(exception_return)(CPUARMState *env, uint64_t new_pc) cur_el, new_el, env->regs[15]); } else { env->aarch64 = 1; + spsr &= aarch64_pstate_valid_mask(&env_archcpu(env)->isar); pstate_write(env, spsr); if (!arm_singlestep_active(env)) { env->pstate &= ~PSTATE_SS; -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> For aarch64, there's a dedicated msr (imm, reg) insn. For aarch32, this is done via msr to cpsr. Writes from el0 are ignored, which is already handled by the CPSR_USER mask. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-12-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 2 ++ target/arm/internals.h | 6 ++++++ target/arm/helper.c | 21 +++++++++++++++++++++ target/arm/translate-a64.c | 14 ++++++++++++++ 4 files changed, 43 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ void pmu_init(ARMCPU *cpu); #define CPSR_IT_2_7 (0xfc00U) #define CPSR_GE (0xfU << 16) #define CPSR_IL (1U << 20) +#define CPSR_PAN (1U << 22) #define CPSR_J (1U << 24) #define CPSR_IT_0_1 (3U << 25) #define CPSR_Q (1U << 27) @@ -XXX,XX +XXX,XX @@ void pmu_init(ARMCPU *cpu); #define PSTATE_BTYPE (3U << 10) #define PSTATE_IL (1U << 20) #define PSTATE_SS (1U << 21) +#define PSTATE_PAN (1U << 22) #define PSTATE_V (1U << 28) #define PSTATE_C (1U << 29) #define PSTATE_Z (1U << 30) diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline uint32_t aarch32_cpsr_valid_mask(uint64_t features, if (isar_feature_jazelle(id)) { valid |= CPSR_J; } + if (isar_feature_aa32_pan(id)) { + valid |= CPSR_PAN; + } return valid; } @@ -XXX,XX +XXX,XX @@ static inline uint32_t aarch64_pstate_valid_mask(const ARMISARegisters *id) if (isar_feature_aa64_bti(id)) { valid |= PSTATE_BTYPE; } + if (isar_feature_aa64_pan(id)) { + valid |= PSTATE_PAN; + } return valid; } diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static void aa64_daif_write(CPUARMState *env, const ARMCPRegInfo *ri, env->daif = value & PSTATE_DAIF; } +static uint64_t aa64_pan_read(CPUARMState *env, const ARMCPRegInfo *ri) +{ + return env->pstate & PSTATE_PAN; +} + +static void aa64_pan_write(CPUARMState *env, const ARMCPRegInfo *ri, + uint64_t value) +{ + env->pstate = (env->pstate & ~PSTATE_PAN) | (value & PSTATE_PAN); +} + +static const ARMCPRegInfo pan_reginfo = { + .name = "PAN", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 2, .opc2 = 3, + .type = ARM_CP_NO_RAW, .access = PL1_RW, + .readfn = aa64_pan_read, .writefn = aa64_pan_write +}; + static CPAccessResult aa64_cacheop_access(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) if (cpu_isar_feature(aa64_lor, cpu)) { define_arm_cp_regs(cpu, lor_reginfo); } + if (cpu_isar_feature(aa64_pan, cpu)) { + define_one_arm_cp_reg(cpu, &pan_reginfo); + } if (arm_feature(env, ARM_FEATURE_EL2) && cpu_isar_feature(aa64_vh, cpu)) { define_arm_cp_regs(cpu, vhe_reginfo); diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -XXX,XX +XXX,XX @@ static void handle_msr_i(DisasContext *s, uint32_t insn, s->base.is_jmp = DISAS_NEXT; break; + case 0x04: /* PAN */ + if (!dc_isar_feature(aa64_pan, s) || s->current_el == 0) { + goto do_unallocated; + } + if (crm & 1) { + set_pstate_bits(PSTATE_PAN); + } else { + clear_pstate_bits(PSTATE_PAN); + } + t1 = tcg_const_i32(s->current_el); + gen_helper_rebuild_hflags_a64(cpu_env, t1); + tcg_temp_free_i32(t1); + break; + case 0x05: /* SPSel */ if (s->current_el == 0) { goto do_unallocated; -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Examine the PAN bit for EL1, EL2, and Secure EL1 to determine if it applies. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-13-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el) return ARMMMUIdx_E10_0; case 1: if (arm_is_secure_below_el3(env)) { + if (env->pstate & PSTATE_PAN) { + return ARMMMUIdx_SE10_1_PAN; + } return ARMMMUIdx_SE10_1; } + if (env->pstate & PSTATE_PAN) { + return ARMMMUIdx_E10_1_PAN; + } return ARMMMUIdx_E10_1; case 2: /* TODO: ARMv8.4-SecEL2 */ /* Note that TGE does not apply at EL2. */ if ((env->cp15.hcr_el2 & HCR_E2H) && arm_el_is_aa64(env, 2)) { + if (env->pstate & PSTATE_PAN) { + return ARMMMUIdx_E20_2_PAN; + } return ARMMMUIdx_E20_2; } return ARMMMUIdx_E2; -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> If we have a PAN-enforcing mmu_idx, set prot == 0 if user_rw != 0. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-14-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/internals.h | 13 +++++++++++++ target/arm/helper.c | 3 +++ 2 files changed, 16 insertions(+) diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline bool regime_is_secure(CPUARMState *env, ARMMMUIdx mmu_idx) } } +static inline bool regime_is_pan(CPUARMState *env, ARMMMUIdx mmu_idx) +{ + switch (mmu_idx) { + case ARMMMUIdx_Stage1_E1_PAN: + case ARMMMUIdx_E10_1_PAN: + case ARMMMUIdx_E20_2_PAN: + case ARMMMUIdx_SE10_1_PAN: + return true; + default: + return false; + } +} + /* Return the FSR value for a debug exception (watchpoint, hardware * breakpoint or BKPT insn) targeting the specified exception level. */ diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static int get_S1prot(CPUARMState *env, ARMMMUIdx mmu_idx, bool is_aa64, if (is_user) { prot_rw = user_rw; } else { + if (user_rw && regime_is_pan(env, mmu_idx)) { + return 0; + } prot_rw = simple_ap_to_rw_prot_is_user(ap, false); } -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> The PAN bit is preserved, or set as per SCTLR_ELx.SPAN, plus several other conditions listed in the ARM ARM. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20200208125816.14954-15-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper.c | 53 ++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 50 insertions(+), 3 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static void take_aarch32_exception(CPUARMState *env, int new_mode, uint32_t mask, uint32_t offset, uint32_t newpc) { + int new_el; + /* Change the CPU state so as to actually take the exception. */ switch_mode(env, new_mode); + new_el = arm_current_el(env); + /* * For exceptions taken to AArch32 we must clear the SS bit in both * PSTATE and in the old-state value we save to SPSR_<mode>, so zero it now. @@ -XXX,XX +XXX,XX @@ static void take_aarch32_exception(CPUARMState *env, int new_mode, env->uncached_cpsr = (env->uncached_cpsr & ~CPSR_M) | new_mode; /* Set new mode endianness */ env->uncached_cpsr &= ~CPSR_E; - if (env->cp15.sctlr_el[arm_current_el(env)] & SCTLR_EE) { + if (env->cp15.sctlr_el[new_el] & SCTLR_EE) { env->uncached_cpsr |= CPSR_E; } /* J and IL must always be cleared for exception entry */ @@ -XXX,XX +XXX,XX @@ static void take_aarch32_exception(CPUARMState *env, int new_mode, env->thumb = (env->cp15.sctlr_el[2] & SCTLR_TE) != 0; env->elr_el[2] = env->regs[15]; } else { + /* CPSR.PAN is normally preserved preserved unless... */ + if (cpu_isar_feature(aa64_pan, env_archcpu(env))) { + switch (new_el) { + case 3: + if (!arm_is_secure_below_el3(env)) { + /* ... the target is EL3, from non-secure state. */ + env->uncached_cpsr &= ~CPSR_PAN; + break; + } + /* ... the target is EL3, from secure state ... */ + /* fall through */ + case 1: + /* ... the target is EL1 and SCTLR.SPAN is 0. */ + if (!(env->cp15.sctlr_el[new_el] & SCTLR_SPAN)) { + env->uncached_cpsr |= CPSR_PAN; + } + break; + } + } /* * this is a lie, as there was no c1_sys on V4T/V5, but who cares * and we should just guard the thumb mode on V4 @@ -XXX,XX +XXX,XX @@ static void arm_cpu_do_interrupt_aarch64(CPUState *cs) unsigned int new_el = env->exception.target_el; target_ulong addr = env->cp15.vbar_el[new_el]; unsigned int new_mode = aarch64_pstate_mode(new_el, true); + unsigned int old_mode; unsigned int cur_el = arm_current_el(env); /* @@ -XXX,XX +XXX,XX @@ static void arm_cpu_do_interrupt_aarch64(CPUState *cs) } if (is_a64(env)) { - env->banked_spsr[aarch64_banked_spsr_index(new_el)] = pstate_read(env); + old_mode = pstate_read(env); aarch64_save_sp(env, arm_current_el(env)); env->elr_el[new_el] = env->pc; } else { - env->banked_spsr[aarch64_banked_spsr_index(new_el)] = cpsr_read(env); + old_mode = cpsr_read(env); env->elr_el[new_el] = env->regs[15]; aarch64_sync_32_to_64(env); env->condexec_bits = 0; } + env->banked_spsr[aarch64_banked_spsr_index(new_el)] = old_mode; + qemu_log_mask(CPU_LOG_INT, "...with ELR 0x%" PRIx64 "\n", env->elr_el[new_el]); + if (cpu_isar_feature(aa64_pan, cpu)) { + /* The value of PSTATE.PAN is normally preserved, except when ... */ + new_mode |= old_mode & PSTATE_PAN; + switch (new_el) { + case 2: + /* ... the target is EL2 with HCR_EL2.{E2H,TGE} == '11' ... */ + if ((arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) + != (HCR_E2H | HCR_TGE)) { + break; + } + /* fall through */ + case 1: + /* ... the target is EL1 ... */ + /* ... and SCTLR_ELx.SPAN == 0, then set to 1. */ + if ((env->cp15.sctlr_el[new_el] & SCTLR_SPAN) == 0) { + new_mode |= PSTATE_PAN; + } + break; + } + } + pstate_write(env, PSTATE_DAIF | new_mode); env->aarch64 = 1; aarch64_restore_sp(env, new_el); -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> This is a minor enhancement over ARMv8.1-PAN. The *_PAN mmu_idx are used with the existing do_ats_write. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-16-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper.c | 56 ++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 50 insertions(+), 6 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) switch (ri->opc2 & 6) { case 0: - /* stage 1 current state PL1: ATS1CPR, ATS1CPW */ + /* stage 1 current state PL1: ATS1CPR, ATS1CPW, ATS1CPRP, ATS1CPWP */ switch (el) { case 3: mmu_idx = ARMMMUIdx_SE3; break; case 2: - mmu_idx = ARMMMUIdx_Stage1_E1; - break; + g_assert(!secure); /* TODO: ARMv8.4-SecEL2 */ + /* fall through */ case 1: - mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_Stage1_E1; + if (ri->crm == 9 && (env->uncached_cpsr & CPSR_PAN)) { + mmu_idx = (secure ? ARMMMUIdx_SE10_1_PAN + : ARMMMUIdx_Stage1_E1_PAN); + } else { + mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_Stage1_E1; + } break; default: g_assert_not_reached(); @@ -XXX,XX +XXX,XX @@ static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri, switch (ri->opc2 & 6) { case 0: switch (ri->opc1) { - case 0: /* AT S1E1R, AT S1E1W */ - mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_Stage1_E1; + case 0: /* AT S1E1R, AT S1E1W, AT S1E1RP, AT S1E1WP */ + if (ri->crm == 9 && (env->pstate & PSTATE_PAN)) { + mmu_idx = (secure ? ARMMMUIdx_SE10_1_PAN + : ARMMMUIdx_Stage1_E1_PAN); + } else { + mmu_idx = secure ? ARMMMUIdx_SE10_1 : ARMMMUIdx_Stage1_E1; + } break; case 4: /* AT S1E2R, AT S1E2W */ mmu_idx = ARMMMUIdx_E2; @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo vhe_reginfo[] = { REGINFO_SENTINEL }; +#ifndef CONFIG_USER_ONLY +static const ARMCPRegInfo ats1e1_reginfo[] = { + { .name = "AT_S1E1R", .state = ARM_CP_STATE_AA64, + .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 0, + .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .writefn = ats_write64 }, + { .name = "AT_S1E1W", .state = ARM_CP_STATE_AA64, + .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 1, + .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .writefn = ats_write64 }, + REGINFO_SENTINEL +}; + +static const ARMCPRegInfo ats1cp_reginfo[] = { + { .name = "ATS1CPRP", + .cp = 15, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 0, + .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .writefn = ats_write }, + { .name = "ATS1CPWP", + .cp = 15, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 1, + .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .writefn = ats_write }, + REGINFO_SENTINEL +}; +#endif + void register_cp_regs_for_features(ARMCPU *cpu) { /* Register all the coprocessor registers based on feature bits */ @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) if (cpu_isar_feature(aa64_pan, cpu)) { define_one_arm_cp_reg(cpu, &pan_reginfo); } +#ifndef CONFIG_USER_ONLY + if (cpu_isar_feature(aa64_ats1e1, cpu)) { + define_arm_cp_regs(cpu, ats1e1_reginfo); + } + if (cpu_isar_feature(aa32_ats1e1, cpu)) { + define_arm_cp_regs(cpu, ats1cp_reginfo); + } +#endif if (arm_feature(env, ARM_FEATURE_EL2) && cpu_isar_feature(aa64_vh, cpu)) { define_arm_cp_regs(cpu, vhe_reginfo); -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> This includes enablement of ARMv8.1-PAN. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-17-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.c | 4 ++++ target/arm/cpu64.c | 5 +++++ 2 files changed, 9 insertions(+) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -XXX,XX +XXX,XX @@ static void arm_max_initfn(Object *obj) t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */ cpu->isar.mvfr2 = t; + t = cpu->id_mmfr3; + t = FIELD_DP32(t, ID_MMFR3, PAN, 2); /* ATS1E1 */ + cpu->id_mmfr3 = t; + t = cpu->id_mmfr4; t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */ cpu->id_mmfr4 = t; diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj) t = FIELD_DP64(t, ID_AA64MMFR1, HPDS, 1); /* HPD */ t = FIELD_DP64(t, ID_AA64MMFR1, LO, 1); t = FIELD_DP64(t, ID_AA64MMFR1, VH, 1); + t = FIELD_DP64(t, ID_AA64MMFR1, PAN, 2); /* ATS1E1 */ cpu->isar.id_aa64mmfr1 = t; /* Replicate the same data to the 32-bit id registers. */ @@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj) u = FIELD_DP32(u, ID_ISAR6, SPECRES, 1); cpu->isar.id_isar6 = u; + u = cpu->id_mmfr3; + u = FIELD_DP32(u, ID_MMFR3, PAN, 2); /* ATS1E1 */ + cpu->id_mmfr3 = u; + /* * FIXME: We do not yet support ARMv8.2-fp16 for AArch32 yet, * so do not set MVFR1.FPHP. Strictly speaking this is not legal, -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Add definitions for all of the fields, up to ARMv8.5. Convert the existing RESERVED register to a full register. Query KVM for the value of the register for the host. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-18-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 17 +++++++++++++++++ target/arm/helper.c | 4 ++-- target/arm/kvm64.c | 2 ++ 3 files changed, 21 insertions(+), 2 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ struct ARMCPU { uint64_t id_aa64pfr1; uint64_t id_aa64mmfr0; uint64_t id_aa64mmfr1; + uint64_t id_aa64mmfr2; } isar; uint32_t midr; uint32_t revidr; @@ -XXX,XX +XXX,XX @@ FIELD(ID_AA64MMFR1, PAN, 20, 4) FIELD(ID_AA64MMFR1, SPECSEI, 24, 4) FIELD(ID_AA64MMFR1, XNX, 28, 4) +FIELD(ID_AA64MMFR2, CNP, 0, 4) +FIELD(ID_AA64MMFR2, UAO, 4, 4) +FIELD(ID_AA64MMFR2, LSM, 8, 4) +FIELD(ID_AA64MMFR2, IESB, 12, 4) +FIELD(ID_AA64MMFR2, VARANGE, 16, 4) +FIELD(ID_AA64MMFR2, CCIDX, 20, 4) +FIELD(ID_AA64MMFR2, NV, 24, 4) +FIELD(ID_AA64MMFR2, ST, 28, 4) +FIELD(ID_AA64MMFR2, AT, 32, 4) +FIELD(ID_AA64MMFR2, IDS, 36, 4) +FIELD(ID_AA64MMFR2, FWB, 40, 4) +FIELD(ID_AA64MMFR2, TTL, 48, 4) +FIELD(ID_AA64MMFR2, BBM, 52, 4) +FIELD(ID_AA64MMFR2, EVT, 56, 4) +FIELD(ID_AA64MMFR2, E0PD, 60, 4) + FIELD(ID_DFR0, COPDBG, 0, 4) FIELD(ID_DFR0, COPSDBG, 4, 4) FIELD(ID_DFR0, MMAPDBG, 8, 4) diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa64_tid3, .resetvalue = cpu->isar.id_aa64mmfr1 }, - { .name = "ID_AA64MMFR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, + { .name = "ID_AA64MMFR2_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 2, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa64_tid3, - .resetvalue = 0 }, + .resetvalue = cpu->isar.id_aa64mmfr2 }, { .name = "ID_AA64MMFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 3, .access = PL1_R, .type = ARM_CP_CONST, diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -XXX,XX +XXX,XX @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) ARM64_SYS_REG(3, 0, 0, 7, 0)); err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64mmfr1, ARM64_SYS_REG(3, 0, 0, 7, 1)); + err |= read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64mmfr2, + ARM64_SYS_REG(3, 0, 0, 7, 2)); /* * Note that if AArch32 support is not present in the host, -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-19-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu.h | 6 ++++++ target/arm/internals.h | 3 +++ target/arm/helper.c | 21 +++++++++++++++++++++ target/arm/translate-a64.c | 14 ++++++++++++++ 4 files changed, 44 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ void pmu_init(ARMCPU *cpu); #define PSTATE_IL (1U << 20) #define PSTATE_SS (1U << 21) #define PSTATE_PAN (1U << 22) +#define PSTATE_UAO (1U << 23) #define PSTATE_V (1U << 28) #define PSTATE_C (1U << 29) #define PSTATE_Z (1U << 30) @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa64_ats1e1(const ARMISARegisters *id) return FIELD_EX64(id->id_aa64mmfr1, ID_AA64MMFR1, PAN) >= 2; } +static inline bool isar_feature_aa64_uao(const ARMISARegisters *id) +{ + return FIELD_EX64(id->id_aa64mmfr2, ID_AA64MMFR2, UAO) != 0; +} + static inline bool isar_feature_aa64_bti(const ARMISARegisters *id) { return FIELD_EX64(id->id_aa64pfr1, ID_AA64PFR1, BT) != 0; diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline uint32_t aarch64_pstate_valid_mask(const ARMISARegisters *id) if (isar_feature_aa64_pan(id)) { valid |= PSTATE_PAN; } + if (isar_feature_aa64_uao(id)) { + valid |= PSTATE_UAO; + } return valid; } diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo pan_reginfo = { .readfn = aa64_pan_read, .writefn = aa64_pan_write }; +static uint64_t aa64_uao_read(CPUARMState *env, const ARMCPRegInfo *ri) +{ + return env->pstate & PSTATE_UAO; +} + +static void aa64_uao_write(CPUARMState *env, const ARMCPRegInfo *ri, + uint64_t value) +{ + env->pstate = (env->pstate & ~PSTATE_UAO) | (value & PSTATE_UAO); +} + +static const ARMCPRegInfo uao_reginfo = { + .name = "UAO", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 2, .opc2 = 4, + .type = ARM_CP_NO_RAW, .access = PL1_RW, + .readfn = aa64_uao_read, .writefn = aa64_uao_write +}; + static CPAccessResult aa64_cacheop_access(CPUARMState *env, const ARMCPRegInfo *ri, bool isread) @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) define_arm_cp_regs(cpu, ats1cp_reginfo); } #endif + if (cpu_isar_feature(aa64_uao, cpu)) { + define_one_arm_cp_reg(cpu, &uao_reginfo); + } if (arm_feature(env, ARM_FEATURE_EL2) && cpu_isar_feature(aa64_vh, cpu)) { define_arm_cp_regs(cpu, vhe_reginfo); diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -XXX,XX +XXX,XX @@ static void handle_msr_i(DisasContext *s, uint32_t insn, s->base.is_jmp = DISAS_NEXT; break; + case 0x03: /* UAO */ + if (!dc_isar_feature(aa64_uao, s) || s->current_el == 0) { + goto do_unallocated; + } + if (crm & 1) { + set_pstate_bits(PSTATE_UAO); + } else { + clear_pstate_bits(PSTATE_UAO); + } + t1 = tcg_const_i32(s->current_el); + gen_helper_rebuild_hflags_a64(cpu_env, t1); + tcg_temp_free_i32(t1); + break; + case 0x04: /* PAN */ if (!dc_isar_feature(aa64_pan, s) || s->current_el == 0) { goto do_unallocated; -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> We need only override the current condition under which TBFLAG_A64.UNPRIV is set. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-20-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/helper.c | 41 +++++++++++++++++++++-------------------- 1 file changed, 21 insertions(+), 20 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static uint32_t rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, } /* Compute the condition for using AccType_UNPRIV for LDTR et al. */ - /* TODO: ARMv8.2-UAO */ - switch (mmu_idx) { - case ARMMMUIdx_E10_1: - case ARMMMUIdx_E10_1_PAN: - case ARMMMUIdx_SE10_1: - case ARMMMUIdx_SE10_1_PAN: - /* TODO: ARMv8.3-NV */ - flags = FIELD_DP32(flags, TBFLAG_A64, UNPRIV, 1); - break; - case ARMMMUIdx_E20_2: - case ARMMMUIdx_E20_2_PAN: - /* TODO: ARMv8.4-SecEL2 */ - /* - * Note that E20_2 is gated by HCR_EL2.E2H == 1, but E20_0 is - * gated by HCR_EL2.<E2H,TGE> == '11', and so is LDTR. - */ - if (env->cp15.hcr_el2 & HCR_TGE) { + if (!(env->pstate & PSTATE_UAO)) { + switch (mmu_idx) { + case ARMMMUIdx_E10_1: + case ARMMMUIdx_E10_1_PAN: + case ARMMMUIdx_SE10_1: + case ARMMMUIdx_SE10_1_PAN: + /* TODO: ARMv8.3-NV */ flags = FIELD_DP32(flags, TBFLAG_A64, UNPRIV, 1); + break; + case ARMMMUIdx_E20_2: + case ARMMMUIdx_E20_2_PAN: + /* TODO: ARMv8.4-SecEL2 */ + /* + * Note that EL20_2 is gated by HCR_EL2.E2H == 1, but EL20_0 is + * gated by HCR_EL2.<E2H,TGE> == '11', and so is LDTR. + */ + if (env->cp15.hcr_el2 & HCR_TGE) { + flags = FIELD_DP32(flags, TBFLAG_A64, UNPRIV, 1); + } + break; + default: + break; } - break; - default: - break; } return rebuild_hflags_common(env, fp_el, mmu_idx, flags); -- 2.20.1 From: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200208125816.14954-21-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/cpu64.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj) t = FIELD_DP64(t, ID_AA64MMFR1, PAN, 2); /* ATS1E1 */ cpu->isar.id_aa64mmfr1 = t; + t = cpu->isar.id_aa64mmfr2; + t = FIELD_DP64(t, ID_AA64MMFR2, UAO, 1); + cpu->isar.id_aa64mmfr2 = t; + /* Replicate the same data to the 32-bit id registers. */ u = cpu->isar.id_isar5; u = FIELD_DP32(u, ID_ISAR5, AES, 2); /* AES + PMULL */ -- 2.20.1 From: Guenter Roeck <linux@roeck-us.net> Initialize EHCI controllers on AST2400 and AST2500 using the existing TYPE_PLATFORM_EHCI. After this change, booting ast2500-evb into Linux successfully instantiates a USB interface. ehci-platform 1e6a3000.usb: EHCI Host Controller ehci-platform 1e6a3000.usb: new USB bus registered, assigned bus number 1 ehci-platform 1e6a3000.usb: irq 21, io mem 0x1e6a3000 ehci-platform 1e6a3000.usb: USB 2.0 started, EHCI 1.00 usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.05 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: Product: EHCI Host Controller Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200206183437.3979-1-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- include/hw/arm/aspeed_soc.h | 6 ++++++ hw/arm/aspeed_soc.c | 25 +++++++++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h index XXXXXXX..XXXXXXX 100644 --- a/include/hw/arm/aspeed_soc.h +++ b/include/hw/arm/aspeed_soc.h @@ -XXX,XX +XXX,XX @@ #include "target/arm/cpu.h" #include "hw/gpio/aspeed_gpio.h" #include "hw/sd/aspeed_sdhci.h" +#include "hw/usb/hcd-ehci.h" #define ASPEED_SPIS_NUM 2 +#define ASPEED_EHCIS_NUM 2 #define ASPEED_WDTS_NUM 4 #define ASPEED_CPUS_NUM 2 #define ASPEED_MACS_NUM 4 @@ -XXX,XX +XXX,XX @@ typedef struct AspeedSoCState { AspeedXDMAState xdma; AspeedSMCState fmc; AspeedSMCState spi[ASPEED_SPIS_NUM]; + EHCISysBusState ehci[ASPEED_EHCIS_NUM]; AspeedSDMCState sdmc; AspeedWDTState wdt[ASPEED_WDTS_NUM]; FTGMAC100State ftgmac100[ASPEED_MACS_NUM]; @@ -XXX,XX +XXX,XX @@ typedef struct AspeedSoCClass { uint32_t silicon_rev; uint64_t sram_size; int spis_num; + int ehcis_num; int wdts_num; int macs_num; const int *irqmap; @@ -XXX,XX +XXX,XX @@ enum { ASPEED_FMC, ASPEED_SPI1, ASPEED_SPI2, + ASPEED_EHCI1, + ASPEED_EHCI2, ASPEED_VIC, ASPEED_SDMC, ASPEED_SCU, diff --git a/hw/arm/aspeed_soc.c b/hw/arm/aspeed_soc.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/aspeed_soc.c +++ b/hw/arm/aspeed_soc.c @@ -XXX,XX +XXX,XX @@ static const hwaddr aspeed_soc_ast2400_memmap[] = { [ASPEED_IOMEM] = 0x1E600000, [ASPEED_FMC] = 0x1E620000, [ASPEED_SPI1] = 0x1E630000, + [ASPEED_EHCI1] = 0x1E6A1000, [ASPEED_VIC] = 0x1E6C0000, [ASPEED_SDMC] = 0x1E6E0000, [ASPEED_SCU] = 0x1E6E2000, @@ -XXX,XX +XXX,XX @@ static const hwaddr aspeed_soc_ast2500_memmap[] = { [ASPEED_FMC] = 0x1E620000, [ASPEED_SPI1] = 0x1E630000, [ASPEED_SPI2] = 0x1E631000, + [ASPEED_EHCI1] = 0x1E6A1000, + [ASPEED_EHCI2] = 0x1E6A3000, [ASPEED_VIC] = 0x1E6C0000, [ASPEED_SDMC] = 0x1E6E0000, [ASPEED_SCU] = 0x1E6E2000, @@ -XXX,XX +XXX,XX @@ static const int aspeed_soc_ast2400_irqmap[] = { [ASPEED_UART5] = 10, [ASPEED_VUART] = 8, [ASPEED_FMC] = 19, + [ASPEED_EHCI1] = 5, + [ASPEED_EHCI2] = 13, [ASPEED_SDMC] = 0, [ASPEED_SCU] = 21, [ASPEED_ADC] = 31, @@ -XXX,XX +XXX,XX @@ static void aspeed_soc_init(Object *obj) sizeof(s->spi[i]), typename); } + for (i = 0; i < sc->ehcis_num; i++) { + sysbus_init_child_obj(obj, "ehci[*]", OBJECT(&s->ehci[i]), + sizeof(s->ehci[i]), TYPE_PLATFORM_EHCI); + } + snprintf(typename, sizeof(typename), "aspeed.sdmc-%s", socname); sysbus_init_child_obj(obj, "sdmc", OBJECT(&s->sdmc), sizeof(s->sdmc), typename); @@ -XXX,XX +XXX,XX @@ static void aspeed_soc_realize(DeviceState *dev, Error **errp) s->spi[i].ctrl->flash_window_base); } + /* EHCI */ + for (i = 0; i < sc->ehcis_num; i++) { + object_property_set_bool(OBJECT(&s->ehci[i]), true, "realized", &err); + if (err) { + error_propagate(errp, err); + return; + } + sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci[i]), 0, + sc->memmap[ASPEED_EHCI1 + i]); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci[i]), 0, + aspeed_soc_get_irq(s, ASPEED_EHCI1 + i)); + } + /* SDMC - SDRAM Memory Controller */ object_property_set_bool(OBJECT(&s->sdmc), true, "realized", &err); if (err) { @@ -XXX,XX +XXX,XX @@ static void aspeed_soc_ast2400_class_init(ObjectClass *oc, void *data) sc->silicon_rev = AST2400_A1_SILICON_REV; sc->sram_size = 0x8000; sc->spis_num = 1; + sc->ehcis_num = 1; sc->wdts_num = 2; sc->macs_num = 2; sc->irqmap = aspeed_soc_ast2400_irqmap; @@ -XXX,XX +XXX,XX @@ static void aspeed_soc_ast2500_class_init(ObjectClass *oc, void *data) sc->silicon_rev = AST2500_A1_SILICON_REV; sc->sram_size = 0x9000; sc->spis_num = 2; + sc->ehcis_num = 2; sc->wdts_num = 3; sc->macs_num = 2; sc->irqmap = aspeed_soc_ast2500_irqmap; -- 2.20.1 From: Guenter Roeck <linux@roeck-us.net> Initialize EHCI controllers on AST2600 using the existing TYPE_PLATFORM_EHCI. After this change, booting ast2600-evb into Linux successfully instantiates a USB interface after the necessary changes are made to its devicetree files. ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ehci-platform: EHCI generic platform driver ehci-platform 1e6a3000.usb: EHCI Host Controller ehci-platform 1e6a3000.usb: new USB bus registered, assigned bus number 1 ehci-platform 1e6a3000.usb: irq 25, io mem 0x1e6a3000 ehci-platform 1e6a3000.usb: USB 2.0 started, EHCI 1.00 usb usb1: Manufacturer: Linux 5.5.0-09825-ga0802f2d0ef5-dirty ehci_hcd usb 1-1: new high-speed USB device number 2 using ehci-platform Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com> Message-id: 20200207174548.9087-1-linux@roeck-us.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/aspeed_ast2600.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/aspeed_ast2600.c +++ b/hw/arm/aspeed_ast2600.c @@ -XXX,XX +XXX,XX @@ static const hwaddr aspeed_soc_ast2600_memmap[] = { [ASPEED_FMC] = 0x1E620000, [ASPEED_SPI1] = 0x1E630000, [ASPEED_SPI2] = 0x1E641000, + [ASPEED_EHCI1] = 0x1E6A1000, + [ASPEED_EHCI2] = 0x1E6A3000, [ASPEED_MII1] = 0x1E650000, [ASPEED_MII2] = 0x1E650008, [ASPEED_MII3] = 0x1E650010, @@ -XXX,XX +XXX,XX @@ static const int aspeed_soc_ast2600_irqmap[] = { [ASPEED_ADC] = 78, [ASPEED_XDMA] = 6, [ASPEED_SDHCI] = 43, + [ASPEED_EHCI1] = 5, + [ASPEED_EHCI2] = 9, [ASPEED_EMMC] = 15, [ASPEED_GPIO] = 40, [ASPEED_GPIO_1_8V] = 11, @@ -XXX,XX +XXX,XX @@ static void aspeed_soc_ast2600_init(Object *obj) sizeof(s->spi[i]), typename); } + for (i = 0; i < sc->ehcis_num; i++) { + sysbus_init_child_obj(obj, "ehci[*]", OBJECT(&s->ehci[i]), + sizeof(s->ehci[i]), TYPE_PLATFORM_EHCI); + } + snprintf(typename, sizeof(typename), "aspeed.sdmc-%s", socname); sysbus_init_child_obj(obj, "sdmc", OBJECT(&s->sdmc), sizeof(s->sdmc), typename); @@ -XXX,XX +XXX,XX @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp) s->spi[i].ctrl->flash_window_base); } + /* EHCI */ + for (i = 0; i < sc->ehcis_num; i++) { + object_property_set_bool(OBJECT(&s->ehci[i]), true, "realized", &err); + if (err) { + error_propagate(errp, err); + return; + } + sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci[i]), 0, + sc->memmap[ASPEED_EHCI1 + i]); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci[i]), 0, + aspeed_soc_get_irq(s, ASPEED_EHCI1 + i)); + } + /* SDMC - SDRAM Memory Controller */ object_property_set_bool(OBJECT(&s->sdmc), true, "realized", &err); if (err) { @@ -XXX,XX +XXX,XX @@ static void aspeed_soc_ast2600_class_init(ObjectClass *oc, void *data) sc->silicon_rev = AST2600_A0_SILICON_REV; sc->sram_size = 0x10000; sc->spis_num = 2; + sc->ehcis_num = 2; sc->wdts_num = 4; sc->macs_num = 4; sc->irqmap = aspeed_soc_ast2600_irqmap; -- 2.20.1 From: Chen Qun <kuhn.chenqun@huawei.com> It's easy to reproduce as follow: virsh qemu-monitor-command vm1 --pretty '{"execute": "device-list-properties", "arguments":{"typename":"exynos4210.uart"}}' ASAN shows memory leak stack: #1 0xfffd896d71cb in g_malloc0 (/lib64/libglib-2.0.so.0+0x571cb) #2 0xaaad270beee3 in timer_new_full /qemu/include/qemu/timer.h:530 #3 0xaaad270beee3 in timer_new /qemu/include/qemu/timer.h:551 #4 0xaaad270beee3 in timer_new_ns /qemu/include/qemu/timer.h:569 #5 0xaaad270beee3 in exynos4210_uart_init /qemu/hw/char/exynos4210_uart.c:677 #6 0xaaad275c8f4f in object_initialize_with_type /qemu/qom/object.c:516 #7 0xaaad275c91bb in object_new_with_type /qemu/qom/object.c:684 #8 0xaaad2755df2f in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:152 Reported-by: Euler Robot <euler.robot@huawei.com> Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20200213025603.149432-1-kuhn.chenqun@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/char/exynos4210_uart.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/char/exynos4210_uart.c b/hw/char/exynos4210_uart.c index XXXXXXX..XXXXXXX 100644 --- a/hw/char/exynos4210_uart.c +++ b/hw/char/exynos4210_uart.c @@ -XXX,XX +XXX,XX @@ static void exynos4210_uart_init(Object *obj) SysBusDevice *dev = SYS_BUS_DEVICE(obj); Exynos4210UartState *s = EXYNOS4210_UART(dev); - s->fifo_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, - exynos4210_uart_timeout_int, s); s->wordtime = NANOSECONDS_PER_SECOND * 10 / 9600; /* memory mapping */ @@ -XXX,XX +XXX,XX @@ static void exynos4210_uart_realize(DeviceState *dev, Error **errp) { Exynos4210UartState *s = EXYNOS4210_UART(dev); + s->fifo_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, + exynos4210_uart_timeout_int, s); + qemu_chr_fe_set_handlers(&s->chr, exynos4210_uart_can_receive, exynos4210_uart_receive, exynos4210_uart_event, NULL, s, NULL, true); -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> When booting without device tree, the Linux kernels uses the $R1 register to determine the machine type. The list of values is registered at [1]. There are two entries for the Raspberry Pi: - https://www.arm.linux.org.uk/developer/machines/list.php?mid=3138 name: MACH_TYPE_BCM2708 value: 0xc42 (3138) status: Active, not mainlined date: 15 Oct 2010 - https://www.arm.linux.org.uk/developer/machines/list.php?mid=4828 name: MACH_TYPE_BCM2835 value: 4828 status: Active, mainlined date: 6 Dec 2013 QEMU always used the non-mainlined type MACH_TYPE_BCM2708. The value 0xc43 is registered to 'MX51_GGC' (processor i.MX51), and 0xc44 to 'Western Digital Sharespace NAS' (processor Marvell 88F5182). The Raspberry Pi foundation bootloader only sets the BCM2708 machine type, see [2] or [3]: 133 9: 134 mov r0, #0 135 ldr r1, =3138 @ BCM2708 machine id 136 ldr r2, atags @ ATAGS 137 bx r4 U-Boot only uses MACH_TYPE_BCM2708 (see [4]): 25 /* 26 * 2835 is a SKU in a series for which the 2708 is the first or primary SoC, 27 * so 2708 has historically been used rather than a dedicated 2835 ID. 28 * 29 * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation 30 * chose to use someone else's previously registered machine ID (3139, MX51_GGC) 31 * rather than obtaining a valid ID:-/ 32 * 33 * For the bcm2837, hopefully a machine type is not needed, since everything 34 * is DT. 35 */ While the definition MACH_BCM2709 with value 0xc43 was introduced in a commit described "Add 2709 platform for Raspberry Pi 2" out of the mainline Linux kernel, it does not seem used, and the platform is introduced with Device Tree support anyway (see [5] and [6]). Remove the unused values (0xc43 introduced in commit 1df7d1f9303aef "raspi: add raspberry pi 2 machine" and 0xc44 in commit bade58166f4 "raspi: Raspberry Pi 3 support"), keeping only MACH_TYPE_BCM2708. [1] https://www.arm.linux.org.uk/developer/machines/ [2] https://github.com/raspberrypi/tools/blob/920c7ed2e/armstubs/armstub7.S#L135 [3] https://github.com/raspberrypi/tools/blob/49719d554/armstubs/armstub7.S#L64 [4] https://gitlab.denx.de/u-boot/u-boot/blob/v2015.04/include/configs/rpi-common.h#L18 [5] https://github.com/raspberrypi/linux/commit/d9fac63adac#diff-6722037d79570df5b392a49e0e006573R526 [6] http://lists.infradead.org/pipermail/linux-rpi-kernel/2015-February/001268.html Cc: Zoltán Baldaszti <bztemail@gmail.com> Cc: Pekka Enberg <penberg@iki.fi> Cc: Stephen Warren <swarren@nvidia.com> Cc: Kshitij Soni <kshitij.soni@broadcom.com> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Andrew Baumann <Andrew.Baumann@microsoft.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com> Message-id: 20200208165645.15657-2-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ #define FIRMWARE_ADDR_3 0x80000 /* Pi 3 loads kernel.img here by default */ #define SPINTABLE_ADDR 0xd8 /* Pi 3 bootloader spintable */ -/* Table of Linux board IDs for different Pi versions */ -static const int raspi_boardid[] = {[1] = 0xc42, [2] = 0xc43, [3] = 0xc44}; +/* Registered machine type (matches RPi Foundation bootloader and U-Boot) */ +#define MACH_TYPE_BCM2708 3138 typedef struct RasPiState { BCM283XState soc; @@ -XXX,XX +XXX,XX @@ static void setup_boot(MachineState *machine, int version, size_t ram_size) static struct arm_boot_info binfo; int r; - binfo.board_id = raspi_boardid[version]; + binfo.board_id = MACH_TYPE_BCM2708; binfo.ram_size = ram_size; binfo.nb_cpus = machine->smp.cpus; -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> We hardcode the board revision as 0xa21041 for the raspi2, and 0xa02082 for the raspi3: 166 static void raspi_init(MachineState *machine, int version) 167 { ... 194 int board_rev = version == 3 ? 0xa02082 : 0xa21041; These revision codes are for the 2B and 3B models, see: https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md Correct the board description. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20200208165645.15657-3-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ static void raspi2_init(MachineState *machine) static void raspi2_machine_init(MachineClass *mc) { - mc->desc = "Raspberry Pi 2"; + mc->desc = "Raspberry Pi 2B"; mc->init = raspi2_init; mc->block_default_type = IF_SD; mc->no_parallel = 1; @@ -XXX,XX +XXX,XX @@ static void raspi3_init(MachineState *machine) static void raspi3_machine_init(MachineClass *mc) { - mc->desc = "Raspberry Pi 3"; + mc->desc = "Raspberry Pi 3B"; mc->init = raspi3_init; mc->block_default_type = IF_SD; mc->no_parallel = 1; -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> The board revision encode the board version. Add a helper to extract the version, and use it. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20200208165645.15657-4-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ #include "qapi/error.h" #include "cpu.h" #include "hw/arm/bcm2836.h" +#include "hw/registerfields.h" #include "qemu/error-report.h" #include "hw/boards.h" #include "hw/loader.h" @@ -XXX,XX +XXX,XX @@ typedef struct RasPiState { MemoryRegion ram; } RasPiState; +/* + * Board revision codes: + * www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/ + */ +FIELD(REV_CODE, REVISION, 0, 4); +FIELD(REV_CODE, TYPE, 4, 8); +FIELD(REV_CODE, PROCESSOR, 12, 4); +FIELD(REV_CODE, MANUFACTURER, 16, 4); +FIELD(REV_CODE, MEMORY_SIZE, 20, 3); +FIELD(REV_CODE, STYLE, 23, 1); + +static int board_processor_id(uint32_t board_rev) +{ + assert(FIELD_EX32(board_rev, REV_CODE, STYLE)); /* Only new style */ + return FIELD_EX32(board_rev, REV_CODE, PROCESSOR); +} + +static int board_version(uint32_t board_rev) +{ + return board_processor_id(board_rev) + 1; +} + static void write_smpboot(ARMCPU *cpu, const struct arm_boot_info *info) { static const uint32_t smpboot[] = { @@ -XXX,XX +XXX,XX @@ static void setup_boot(MachineState *machine, int version, size_t ram_size) arm_load_kernel(ARM_CPU(first_cpu), machine, &binfo); } -static void raspi_init(MachineState *machine, int version) +static void raspi_init(MachineState *machine, uint32_t board_rev) { RasPiState *s = g_new0(RasPiState, 1); + int version = board_version(board_rev); uint32_t vcram_size; DriveInfo *di; BlockBackend *blk; @@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, int version) /* Setup the SOC */ object_property_add_const_link(OBJECT(&s->soc), "ram", OBJECT(&s->ram), &error_abort); - int board_rev = version == 3 ? 0xa02082 : 0xa21041; object_property_set_int(OBJECT(&s->soc), board_rev, "board-rev", &error_abort); object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_abort); @@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, int version) static void raspi2_init(MachineState *machine) { - raspi_init(machine, 2); + raspi_init(machine, 0xa21041); } static void raspi2_machine_init(MachineClass *mc) @@ -XXX,XX +XXX,XX @@ DEFINE_MACHINE("raspi2", raspi2_machine_init) #ifdef TARGET_AARCH64 static void raspi3_init(MachineState *machine) { - raspi_init(machine, 3); + raspi_init(machine, 0xa02082); } static void raspi3_machine_init(MachineClass *mc) -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> The board revision encode the amount of RAM. Add a helper to extract the RAM size, and use it. Since the amount of RAM is fixed (it is impossible to physically modify to have more or less RAM), do not allow sizes different than the one anounced by the manufacturer. Acked-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20200208165645.15657-5-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ #include "qemu/osdep.h" #include "qemu/units.h" +#include "qemu/cutils.h" #include "qapi/error.h" #include "cpu.h" #include "hw/arm/bcm2836.h" @@ -XXX,XX +XXX,XX @@ FIELD(REV_CODE, MANUFACTURER, 16, 4); FIELD(REV_CODE, MEMORY_SIZE, 20, 3); FIELD(REV_CODE, STYLE, 23, 1); +static uint64_t board_ram_size(uint32_t board_rev) +{ + assert(FIELD_EX32(board_rev, REV_CODE, STYLE)); /* Only new style */ + return 256 * MiB << FIELD_EX32(board_rev, REV_CODE, MEMORY_SIZE); +} + static int board_processor_id(uint32_t board_rev) { assert(FIELD_EX32(board_rev, REV_CODE, STYLE)); /* Only new style */ @@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, uint32_t board_rev) { RasPiState *s = g_new0(RasPiState, 1); int version = board_version(board_rev); + uint64_t ram_size = board_ram_size(board_rev); uint32_t vcram_size; DriveInfo *di; BlockBackend *blk; BusState *bus; DeviceState *carddev; - if (machine->ram_size > 1 * GiB) { - error_report("Requested ram size is too large for this machine: " - "maximum is 1GB"); + if (machine->ram_size != ram_size) { + char *size_str = size_to_str(ram_size); + error_report("Invalid RAM size, should be %s", size_str); + g_free(size_str); exit(1); } -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> The board revision encode the processor type. Add a helper to extract the type, and use it. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20200208165645.15657-6-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ static int board_version(uint32_t board_rev) return board_processor_id(board_rev) + 1; } +static const char *board_soc_type(uint32_t board_rev) +{ + static const char *soc_types[] = { + NULL, TYPE_BCM2836, TYPE_BCM2837, + }; + int proc_id = board_processor_id(board_rev); + + if (proc_id >= ARRAY_SIZE(soc_types) || !soc_types[proc_id]) { + error_report("Unsupported processor id '%d' (board revision: 0x%x)", + proc_id, board_rev); + exit(1); + } + return soc_types[proc_id]; +} + static void write_smpboot(ARMCPU *cpu, const struct arm_boot_info *info) { static const uint32_t smpboot[] = { @@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, uint32_t board_rev) } object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc), - version == 3 ? TYPE_BCM2837 : TYPE_BCM2836, - &error_abort, NULL); + board_soc_type(board_rev), &error_abort, NULL); /* Allocate and map RAM */ memory_region_allocate_system_memory(&s->ram, OBJECT(machine), "ram", -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> There is no point in creating the SoC object before allocating the RAM. Move the call to keep all the SoC-related calls together. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Igor Mammedov <imammedo@redhat.com> Message-id: 20200208165645.15657-7-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, uint32_t board_rev) exit(1); } - object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc), - board_soc_type(board_rev), &error_abort, NULL); - /* Allocate and map RAM */ memory_region_allocate_system_memory(&s->ram, OBJECT(machine), "ram", machine->ram_size); @@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, uint32_t board_rev) memory_region_add_subregion_overlap(get_system_memory(), 0, &s->ram, 0); /* Setup the SOC */ + object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc), + board_soc_type(board_rev), &error_abort, NULL); object_property_add_const_link(OBJECT(&s->soc), "ram", OBJECT(&s->ram), &error_abort); object_property_set_int(OBJECT(&s->soc), board_rev, "board-rev", -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> QOM'ify RaspiMachineState. Now machines inherit of RaspiMachineClass. Cc: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Acked-by: Igor Mammedov <imammedo@redhat.com> Message-id: 20200208165645.15657-8-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 56 +++++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 49 insertions(+), 7 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ /* Registered machine type (matches RPi Foundation bootloader and U-Boot) */ #define MACH_TYPE_BCM2708 3138 -typedef struct RasPiState { +typedef struct RaspiMachineState { + /*< private >*/ + MachineState parent_obj; + /*< public >*/ BCM283XState soc; MemoryRegion ram; -} RasPiState; +} RaspiMachineState; + +typedef struct RaspiMachineClass { + /*< private >*/ + MachineClass parent_obj; + /*< public >*/ +} RaspiMachineClass; + +#define TYPE_RASPI_MACHINE MACHINE_TYPE_NAME("raspi-common") +#define RASPI_MACHINE(obj) \ + OBJECT_CHECK(RaspiMachineState, (obj), TYPE_RASPI_MACHINE) + +#define RASPI_MACHINE_CLASS(klass) \ + OBJECT_CLASS_CHECK(RaspiMachineClass, (klass), TYPE_RASPI_MACHINE) +#define RASPI_MACHINE_GET_CLASS(obj) \ + OBJECT_GET_CLASS(RaspiMachineClass, (obj), TYPE_RASPI_MACHINE) /* * Board revision codes: @@ -XXX,XX +XXX,XX @@ static void setup_boot(MachineState *machine, int version, size_t ram_size) static void raspi_init(MachineState *machine, uint32_t board_rev) { - RasPiState *s = g_new0(RasPiState, 1); + RaspiMachineState *s = RASPI_MACHINE(machine); int version = board_version(board_rev); uint64_t ram_size = board_ram_size(board_rev); uint32_t vcram_size; @@ -XXX,XX +XXX,XX @@ static void raspi2_init(MachineState *machine) raspi_init(machine, 0xa21041); } -static void raspi2_machine_init(MachineClass *mc) +static void raspi2_machine_class_init(ObjectClass *oc, void *data) { + MachineClass *mc = MACHINE_CLASS(oc); + mc->desc = "Raspberry Pi 2B"; mc->init = raspi2_init; mc->block_default_type = IF_SD; @@ -XXX,XX +XXX,XX @@ static void raspi2_machine_init(MachineClass *mc) mc->default_ram_size = 1 * GiB; mc->ignore_memory_transaction_failures = true; }; -DEFINE_MACHINE("raspi2", raspi2_machine_init) #ifdef TARGET_AARCH64 static void raspi3_init(MachineState *machine) @@ -XXX,XX +XXX,XX @@ static void raspi3_init(MachineState *machine) raspi_init(machine, 0xa02082); } -static void raspi3_machine_init(MachineClass *mc) +static void raspi3_machine_class_init(ObjectClass *oc, void *data) { + MachineClass *mc = MACHINE_CLASS(oc); + mc->desc = "Raspberry Pi 3B"; mc->init = raspi3_init; mc->block_default_type = IF_SD; @@ -XXX,XX +XXX,XX @@ static void raspi3_machine_init(MachineClass *mc) mc->default_cpus = BCM283X_NCPUS; mc->default_ram_size = 1 * GiB; } -DEFINE_MACHINE("raspi3", raspi3_machine_init) #endif + +static const TypeInfo raspi_machine_types[] = { + { + .name = MACHINE_TYPE_NAME("raspi2"), + .parent = TYPE_RASPI_MACHINE, + .class_init = raspi2_machine_class_init, +#ifdef TARGET_AARCH64 + }, { + .name = MACHINE_TYPE_NAME("raspi3"), + .parent = TYPE_RASPI_MACHINE, + .class_init = raspi3_machine_class_init, +#endif + }, { + .name = TYPE_RASPI_MACHINE, + .parent = TYPE_MACHINE, + .instance_size = sizeof(RaspiMachineState), + .class_size = sizeof(RaspiMachineClass), + .abstract = true, + } +}; + +DEFINE_TYPES(raspi_machine_types) -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> We want to have a common class_init(). The only value that matters (and changes) is the board revision. Pass the board_rev as class_data to class_init(). Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20200208165645.15657-9-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ typedef struct RaspiMachineClass { /*< private >*/ MachineClass parent_obj; /*< public >*/ + uint32_t board_rev; } RaspiMachineClass; #define TYPE_RASPI_MACHINE MACHINE_TYPE_NAME("raspi-common") @@ -XXX,XX +XXX,XX @@ static void setup_boot(MachineState *machine, int version, size_t ram_size) arm_load_kernel(ARM_CPU(first_cpu), machine, &binfo); } -static void raspi_init(MachineState *machine, uint32_t board_rev) +static void raspi_init(MachineState *machine) { + RaspiMachineClass *mc = RASPI_MACHINE_GET_CLASS(machine); RaspiMachineState *s = RASPI_MACHINE(machine); + uint32_t board_rev = mc->board_rev; int version = board_version(board_rev); uint64_t ram_size = board_ram_size(board_rev); uint32_t vcram_size; @@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, uint32_t board_rev) static void raspi2_init(MachineState *machine) { - raspi_init(machine, 0xa21041); + raspi_init(machine); } static void raspi2_machine_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); + RaspiMachineClass *rmc = RASPI_MACHINE_CLASS(oc); + uint32_t board_rev = (uint32_t)(uintptr_t)data; + rmc->board_rev = board_rev; mc->desc = "Raspberry Pi 2B"; mc->init = raspi2_init; mc->block_default_type = IF_SD; @@ -XXX,XX +XXX,XX @@ static void raspi2_machine_class_init(ObjectClass *oc, void *data) #ifdef TARGET_AARCH64 static void raspi3_init(MachineState *machine) { - raspi_init(machine, 0xa02082); + raspi_init(machine); } static void raspi3_machine_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); + RaspiMachineClass *rmc = RASPI_MACHINE_CLASS(oc); + uint32_t board_rev = (uint32_t)(uintptr_t)data; + rmc->board_rev = board_rev; mc->desc = "Raspberry Pi 3B"; mc->init = raspi3_init; mc->block_default_type = IF_SD; @@ -XXX,XX +XXX,XX @@ static const TypeInfo raspi_machine_types[] = { .name = MACHINE_TYPE_NAME("raspi2"), .parent = TYPE_RASPI_MACHINE, .class_init = raspi2_machine_class_init, + .class_data = (void *)0xa21041, #ifdef TARGET_AARCH64 }, { .name = MACHINE_TYPE_NAME("raspi3"), .parent = TYPE_RASPI_MACHINE, .class_init = raspi3_machine_class_init, + .class_data = (void *)0xa02082, #endif }, { .name = TYPE_RASPI_MACHINE, -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> raspi_machine_init() access to board_rev via RaspiMachineClass. raspi2_init() and raspi3_init() do nothing. Call raspi_machine_init directly. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Message-id: 20200208165645.15657-10-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ static void setup_boot(MachineState *machine, int version, size_t ram_size) arm_load_kernel(ARM_CPU(first_cpu), machine, &binfo); } -static void raspi_init(MachineState *machine) +static void raspi_machine_init(MachineState *machine) { RaspiMachineClass *mc = RASPI_MACHINE_GET_CLASS(machine); RaspiMachineState *s = RASPI_MACHINE(machine); @@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine) setup_boot(machine, version, machine->ram_size - vcram_size); } -static void raspi2_init(MachineState *machine) -{ - raspi_init(machine); -} - static void raspi2_machine_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); @@ -XXX,XX +XXX,XX @@ static void raspi2_machine_class_init(ObjectClass *oc, void *data) rmc->board_rev = board_rev; mc->desc = "Raspberry Pi 2B"; - mc->init = raspi2_init; + mc->init = raspi_machine_init; mc->block_default_type = IF_SD; mc->no_parallel = 1; mc->no_floppy = 1; @@ -XXX,XX +XXX,XX @@ static void raspi2_machine_class_init(ObjectClass *oc, void *data) }; #ifdef TARGET_AARCH64 -static void raspi3_init(MachineState *machine) -{ - raspi_init(machine); -} - static void raspi3_machine_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); @@ -XXX,XX +XXX,XX @@ static void raspi3_machine_class_init(ObjectClass *oc, void *data) rmc->board_rev = board_rev; mc->desc = "Raspberry Pi 3B"; - mc->init = raspi3_init; + mc->init = raspi_machine_init; mc->block_default_type = IF_SD; mc->no_parallel = 1; mc->no_floppy = 1; -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> We added a helper to extract the RAM size from the board revision, and made board_rev a field of RaspiMachineClass. The class_init() can now use the helper to extract from the board revision the board-specific amount of RAM. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20200208165645.15657-11-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ static void raspi2_machine_class_init(ObjectClass *oc, void *data) mc->max_cpus = BCM283X_NCPUS; mc->min_cpus = BCM283X_NCPUS; mc->default_cpus = BCM283X_NCPUS; - mc->default_ram_size = 1 * GiB; + mc->default_ram_size = board_ram_size(board_rev); mc->ignore_memory_transaction_failures = true; }; @@ -XXX,XX +XXX,XX @@ static void raspi3_machine_class_init(ObjectClass *oc, void *data) mc->max_cpus = BCM283X_NCPUS; mc->min_cpus = BCM283X_NCPUS; mc->default_cpus = BCM283X_NCPUS; - mc->default_ram_size = 1 * GiB; + mc->default_ram_size = board_ram_size(board_rev); } #endif -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> The board revision encode the model type. Add a helper to extract the model, and use it. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20200208165645.15657-12-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ static const char *board_soc_type(uint32_t board_rev) return soc_types[proc_id]; } +static const char *board_type(uint32_t board_rev) +{ + static const char *types[] = { + "A", "B", "A+", "B+", "2B", "Alpha", "CM1", NULL, "3B", "Zero", + "CM3", NULL, "Zero W", "3B+", "3A+", NULL, "CM3+", "4B", + }; + assert(FIELD_EX32(board_rev, REV_CODE, STYLE)); /* Only new style */ + int bt = FIELD_EX32(board_rev, REV_CODE, TYPE); + if (bt >= ARRAY_SIZE(types) || !types[bt]) { + return "Unknown"; + } + return types[bt]; +} + static void write_smpboot(ARMCPU *cpu, const struct arm_boot_info *info) { static const uint32_t smpboot[] = { @@ -XXX,XX +XXX,XX @@ static void raspi2_machine_class_init(ObjectClass *oc, void *data) uint32_t board_rev = (uint32_t)(uintptr_t)data; rmc->board_rev = board_rev; - mc->desc = "Raspberry Pi 2B"; + mc->desc = g_strdup_printf("Raspberry Pi %s", board_type(board_rev)); mc->init = raspi_machine_init; mc->block_default_type = IF_SD; mc->no_parallel = 1; @@ -XXX,XX +XXX,XX @@ static void raspi3_machine_class_init(ObjectClass *oc, void *data) uint32_t board_rev = (uint32_t)(uintptr_t)data; rmc->board_rev = board_rev; - mc->desc = "Raspberry Pi 3B"; + mc->desc = g_strdup_printf("Raspberry Pi %s", board_type(board_rev)); mc->init = raspi_machine_init; mc->block_default_type = IF_SD; mc->no_parallel = 1; -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> With the exception of the ignore_memory_transaction_failures flag set for the raspi2, both machine_class_init() methods are now identical. Merge them to keep a unique method. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Message-id: 20200208165645.15657-13-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 31 ++++++------------------------- 1 file changed, 6 insertions(+), 25 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ static void raspi_machine_init(MachineState *machine) setup_boot(machine, version, machine->ram_size - vcram_size); } -static void raspi2_machine_class_init(ObjectClass *oc, void *data) +static void raspi_machine_class_init(ObjectClass *oc, void *data) { MachineClass *mc = MACHINE_CLASS(oc); RaspiMachineClass *rmc = RASPI_MACHINE_CLASS(oc); @@ -XXX,XX +XXX,XX @@ static void raspi2_machine_class_init(ObjectClass *oc, void *data) mc->min_cpus = BCM283X_NCPUS; mc->default_cpus = BCM283X_NCPUS; mc->default_ram_size = board_ram_size(board_rev); - mc->ignore_memory_transaction_failures = true; + if (board_version(board_rev) == 2) { + mc->ignore_memory_transaction_failures = true; + } }; -#ifdef TARGET_AARCH64 -static void raspi3_machine_class_init(ObjectClass *oc, void *data) -{ - MachineClass *mc = MACHINE_CLASS(oc); - RaspiMachineClass *rmc = RASPI_MACHINE_CLASS(oc); - uint32_t board_rev = (uint32_t)(uintptr_t)data; - - rmc->board_rev = board_rev; - mc->desc = g_strdup_printf("Raspberry Pi %s", board_type(board_rev)); - mc->init = raspi_machine_init; - mc->block_default_type = IF_SD; - mc->no_parallel = 1; - mc->no_floppy = 1; - mc->no_cdrom = 1; - mc->max_cpus = BCM283X_NCPUS; - mc->min_cpus = BCM283X_NCPUS; - mc->default_cpus = BCM283X_NCPUS; - mc->default_ram_size = board_ram_size(board_rev); -} -#endif - static const TypeInfo raspi_machine_types[] = { { .name = MACHINE_TYPE_NAME("raspi2"), .parent = TYPE_RASPI_MACHINE, - .class_init = raspi2_machine_class_init, + .class_init = raspi_machine_class_init, .class_data = (void *)0xa21041, #ifdef TARGET_AARCH64 }, { .name = MACHINE_TYPE_NAME("raspi3"), .parent = TYPE_RASPI_MACHINE, - .class_init = raspi3_machine_class_init, + .class_init = raspi_machine_class_init, .class_data = (void *)0xa02082, #endif }, { -- 2.20.1 From: Philippe Mathieu-Daudé <f4bug@amsat.org> The count of ARM cores is encoded in the board revision. Add a helper to extract the number of cores, and use it. This will be helpful when we add the Raspi0/1 that have a single core. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20200208165645.15657-14-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweaked commit message as suggested by Igor] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/raspi.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/raspi.c +++ b/hw/arm/raspi.c @@ -XXX,XX +XXX,XX @@ static const char *board_soc_type(uint32_t board_rev) return soc_types[proc_id]; } +static int cores_count(uint32_t board_rev) +{ + static const int soc_cores_count[] = { + 0, BCM283X_NCPUS, BCM283X_NCPUS, + }; + int proc_id = board_processor_id(board_rev); + + if (proc_id >= ARRAY_SIZE(soc_cores_count) || !soc_cores_count[proc_id]) { + error_report("Unsupported processor id '%d' (board revision: 0x%x)", + proc_id, board_rev); + exit(1); + } + return soc_cores_count[proc_id]; +} + static const char *board_type(uint32_t board_rev) { static const char *types[] = { @@ -XXX,XX +XXX,XX @@ static void raspi_machine_class_init(ObjectClass *oc, void *data) mc->no_parallel = 1; mc->no_floppy = 1; mc->no_cdrom = 1; - mc->max_cpus = BCM283X_NCPUS; - mc->min_cpus = BCM283X_NCPUS; - mc->default_cpus = BCM283X_NCPUS; + mc->default_cpus = mc->min_cpus = mc->max_cpus = cores_count(board_rev); mc->default_ram_size = board_ram_size(board_rev); if (board_version(board_rev) == 2) { mc->ignore_memory_transaction_failures = true; -- 2.20.1 The ARMv8.1-VMID16 extension extends the VMID from 8 bits to 16 bits: * the ID_AA64MMFR1_EL1.VMIDBits field specifies whether the VMID is 8 or 16 bits * the VMID field in VTTBR_EL2 is extended to 16 bits * VTCR_EL2.VS lets the guest specify whether to use the full 16 bits, or use the backwards-compatible 8 bits For QEMU implementing this is trivial: * we do not track VMIDs in TLB entries, so we never use the VMID field * we treat any write to VTTBR_EL2, not just a change to the VMID field bits, as a "possible VMID change" that causes us to throw away TLB entries, so that code doesn't need changing * we allow the guest to read/write the VTCR_EL2.VS bit already So all that's missing is the ID register part: report that we support VMID16 in our 'max' CPU. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200210120146.17631-1-peter.maydell@linaro.org --- target/arm/cpu64.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj) t = FIELD_DP64(t, ID_AA64MMFR1, LO, 1); t = FIELD_DP64(t, ID_AA64MMFR1, VH, 1); t = FIELD_DP64(t, ID_AA64MMFR1, PAN, 2); /* ATS1E1 */ + t = FIELD_DP64(t, ID_AA64MMFR1, VMIDBITS, 2); /* VMID16 */ cpu->isar.id_aa64mmfr1 = t; t = cpu->isar.id_aa64mmfr2; -- 2.20.1 The following changes since commit bf4460a8d9a86f6cfe05d7a7f470c48e3a93d8b2: Merge tag 'pull-tcg-20230123' of https://gitlab.com/rth7680/qemu into staging (2023-02-03 09:30:45 +0000) are available in the Git repository at: https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20230203 for you to fetch changes up to bb18151d8bd9bedc497ee9d4e8d81b39a4e5bbf6: target/arm: Enable FEAT_FGT on '-cpu max' (2023-02-03 12:59:24 +0000) ---------------------------------------------------------------- target-arm queue: * Fix physical address resolution for Stage2 * pl011: refactoring, implement reset method * Support GICv3 with hvf acceleration * sbsa-ref: remove cortex-a76 from list of supported cpus * Correct syndrome for ATS12NSO* traps at Secure EL1 * Fix priority of HSTR_EL2 traps vs UNDEFs * Implement FEAT_FGT for '-cpu max' ---------------------------------------------------------------- Alexander Graf (3): hvf: arm: Add support for GICv3 hw/arm/virt: Consolidate GIC finalize logic hw/arm/virt: Make accels in GIC finalize logic explicit Evgeny Iakovlev (4): hw/char/pl011: refactor FIFO depth handling code hw/char/pl011: add post_load hook for backwards-compatibility hw/char/pl011: implement a reset method hw/char/pl011: better handling of FIFO flags on LCR reset Marcin Juszkiewicz (1): sbsa-ref: remove cortex-a76 from list of supported cpus Peter Maydell (23): target/arm: Name AT_S1E1RP and AT_S1E1WP cpregs correctly target/arm: Correct syndrome for ATS12NSO* at Secure EL1 target/arm: Remove CP_ACCESS_TRAP_UNCATEGORIZED_{EL2, EL3} target/arm: Move do_coproc_insn() syndrome calculation earlier target/arm: All UNDEF-at-EL0 traps take priority over HSTR_EL2 traps target/arm: Make HSTR_EL2 traps take priority over UNDEF-at-EL1 target/arm: Disable HSTR_EL2 traps if EL2 is not enabled target/arm: Define the FEAT_FGT registers target/arm: Implement FGT trapping infrastructure target/arm: Mark up sysregs for HFGRTR bits 0..11 target/arm: Mark up sysregs for HFGRTR bits 12..23 target/arm: Mark up sysregs for HFGRTR bits 24..35 target/arm: Mark up sysregs for HFGRTR bits 36..63 target/arm: Mark up sysregs for HDFGRTR bits 0..11 target/arm: Mark up sysregs for HDFGRTR bits 12..63 target/arm: Mark up sysregs for HFGITR bits 0..11 target/arm: Mark up sysregs for HFGITR bits 12..17 target/arm: Mark up sysregs for HFGITR bits 18..47 target/arm: Mark up sysregs for HFGITR bits 48..63 target/arm: Implement the HFGITR_EL2.ERET trap target/arm: Implement the HFGITR_EL2.SVC_EL0 and SVC_EL1 traps target/arm: Implement MDCR_EL2.TDCC and MDCR_EL3.TDCC traps target/arm: Enable FEAT_FGT on '-cpu max' Richard Henderson (2): hw/arm: Use TYPE_ARM_SMMUV3 target/arm: Fix physical address resolution for Stage2 docs/system/arm/emulation.rst | 1 + include/hw/arm/virt.h | 15 +- include/hw/char/pl011.h | 5 +- target/arm/cpregs.h | 484 +++++++++++++++++++++++++++++++++++++++++- target/arm/cpu.h | 18 ++ target/arm/internals.h | 20 ++ target/arm/syndrome.h | 10 + target/arm/translate.h | 6 + hw/arm/sbsa-ref.c | 4 +- hw/arm/virt.c | 203 +++++++++--------- hw/char/pl011.c | 93 ++++++-- hw/intc/arm_gicv3_cpuif.c | 18 +- target/arm/cpu64.c | 1 + target/arm/debug_helper.c | 46 +++- target/arm/helper.c | 245 ++++++++++++++++++++- target/arm/hvf/hvf.c | 151 +++++++++++++ target/arm/op_helper.c | 58 ++++- target/arm/ptw.c | 2 +- target/arm/translate-a64.c | 22 +- target/arm/translate.c | 125 +++++++---- target/arm/hvf/trace-events | 2 + 21 files changed, 1340 insertions(+), 189 deletions(-) From: Richard Henderson <richard.henderson@linaro.org> Use the macro instead of two explicit string literals. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Eric Auger <eric.auger@redhat.com> Message-id: 20230124232059.4017615-1-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/sbsa-ref.c | 3 ++- hw/arm/virt.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/sbsa-ref.c +++ b/hw/arm/sbsa-ref.c @@ -XXX,XX +XXX,XX @@ #include "exec/hwaddr.h" #include "kvm_arm.h" #include "hw/arm/boot.h" +#include "hw/arm/smmuv3.h" #include "hw/block/flash.h" #include "hw/boards.h" #include "hw/ide/internal.h" @@ -XXX,XX +XXX,XX @@ static void create_smmu(const SBSAMachineState *sms, PCIBus *bus) DeviceState *dev; int i; - dev = qdev_new("arm-smmuv3"); + dev = qdev_new(TYPE_ARM_SMMUV3); object_property_set_link(OBJECT(dev), "primary-bus", OBJECT(bus), &error_abort); diff --git a/hw/arm/virt.c b/hw/arm/virt.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -XXX,XX +XXX,XX @@ static void create_smmu(const VirtMachineState *vms, return; } - dev = qdev_new("arm-smmuv3"); + dev = qdev_new(TYPE_ARM_SMMUV3); object_property_set_link(OBJECT(dev), "primary-bus", OBJECT(bus), &error_abort); -- 2.34.1 From: Richard Henderson <richard.henderson@linaro.org> Conversion to probe_access_full missed applying the page offset. Cc: qemu-stable@nongnu.org Reported-by: Sid Manning <sidneym@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230126233134.103193-1-richard.henderson@linaro.org Fixes: f3639a64f602 ("target/arm: Use softmmu tlbs for page table walking") Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/ptw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/arm/ptw.c b/target/arm/ptw.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/ptw.c +++ b/target/arm/ptw.c @@ -XXX,XX +XXX,XX @@ static bool S1_ptw_translate(CPUARMState *env, S1Translate *ptw, if (unlikely(flags & TLB_INVALID_MASK)) { goto fail; } - ptw->out_phys = full->phys_addr; + ptw->out_phys = full->phys_addr | (addr & ~TARGET_PAGE_MASK); ptw->out_rw = full->prot & PAGE_WRITE; pte_attrs = full->pte_attrs; pte_secure = full->attrs.secure; -- 2.34.1 From: Evgeny Iakovlev <eiakovlev@linux.microsoft.com> PL011 can be in either of 2 modes depending guest config: FIFO and single register. The last mode could be viewed as a 1-element-deep FIFO. Current code open-codes a bunch of depth-dependent logic. Refactor FIFO depth handling code to isolate calculating current FIFO depth. One functional (albeit guest-invisible) side-effect of this change is that previously we would always increment s->read_pos in UARTDR read handler even if FIFO was disabled, now we are limiting read_pos to not exceed FIFO depth (read_pos itself is reset to 0 if user disables FIFO). Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230123162304.26254-2-eiakovlev@linux.microsoft.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- include/hw/char/pl011.h | 5 ++++- hw/char/pl011.c | 30 ++++++++++++++++++------------ 2 files changed, 22 insertions(+), 13 deletions(-) diff --git a/include/hw/char/pl011.h b/include/hw/char/pl011.h index XXXXXXX..XXXXXXX 100644 --- a/include/hw/char/pl011.h +++ b/include/hw/char/pl011.h @@ -XXX,XX +XXX,XX @@ OBJECT_DECLARE_SIMPLE_TYPE(PL011State, PL011) /* This shares the same struct (and cast macro) as the base pl011 device */ #define TYPE_PL011_LUMINARY "pl011_luminary" +/* Depth of UART FIFO in bytes, when FIFO mode is enabled (else depth == 1) */ +#define PL011_FIFO_DEPTH 16 + struct PL011State { SysBusDevice parent_obj; @@ -XXX,XX +XXX,XX @@ struct PL011State { uint32_t dmacr; uint32_t int_enabled; uint32_t int_level; - uint32_t read_fifo[16]; + uint32_t read_fifo[PL011_FIFO_DEPTH]; uint32_t ilpr; uint32_t ibrd; uint32_t fbrd; diff --git a/hw/char/pl011.c b/hw/char/pl011.c index XXXXXXX..XXXXXXX 100644 --- a/hw/char/pl011.c +++ b/hw/char/pl011.c @@ -XXX,XX +XXX,XX @@ static void pl011_update(PL011State *s) } } +static bool pl011_is_fifo_enabled(PL011State *s) +{ + return (s->lcr & 0x10) != 0; +} + +static inline unsigned pl011_get_fifo_depth(PL011State *s) +{ + /* Note: FIFO depth is expected to be power-of-2 */ + return pl011_is_fifo_enabled(s) ? PL011_FIFO_DEPTH : 1; +} + static uint64_t pl011_read(void *opaque, hwaddr offset, unsigned size) { @@ -XXX,XX +XXX,XX @@ static uint64_t pl011_read(void *opaque, hwaddr offset, c = s->read_fifo[s->read_pos]; if (s->read_count > 0) { s->read_count--; - if (++s->read_pos == 16) - s->read_pos = 0; + s->read_pos = (s->read_pos + 1) & (pl011_get_fifo_depth(s) - 1); } if (s->read_count == 0) { s->flags |= PL011_FLAG_RXFE; @@ -XXX,XX +XXX,XX @@ static int pl011_can_receive(void *opaque) PL011State *s = (PL011State *)opaque; int r; - if (s->lcr & 0x10) { - r = s->read_count < 16; - } else { - r = s->read_count < 1; - } + r = s->read_count < pl011_get_fifo_depth(s); trace_pl011_can_receive(s->lcr, s->read_count, r); return r; } @@ -XXX,XX +XXX,XX @@ static void pl011_put_fifo(void *opaque, uint32_t value) { PL011State *s = (PL011State *)opaque; int slot; + unsigned pipe_depth; - slot = s->read_pos + s->read_count; - if (slot >= 16) - slot -= 16; + pipe_depth = pl011_get_fifo_depth(s); + slot = (s->read_pos + s->read_count) & (pipe_depth - 1); s->read_fifo[slot] = value; s->read_count++; s->flags &= ~PL011_FLAG_RXFE; trace_pl011_put_fifo(value, s->read_count); - if (!(s->lcr & 0x10) || s->read_count == 16) { + if (s->read_count == pipe_depth) { trace_pl011_put_fifo_full(); s->flags |= PL011_FLAG_RXFF; } @@ -XXX,XX +XXX,XX @@ static const VMStateDescription vmstate_pl011 = { VMSTATE_UINT32(dmacr, PL011State), VMSTATE_UINT32(int_enabled, PL011State), VMSTATE_UINT32(int_level, PL011State), - VMSTATE_UINT32_ARRAY(read_fifo, PL011State, 16), + VMSTATE_UINT32_ARRAY(read_fifo, PL011State, PL011_FIFO_DEPTH), VMSTATE_UINT32(ilpr, PL011State), VMSTATE_UINT32(ibrd, PL011State), VMSTATE_UINT32(fbrd, PL011State), -- 2.34.1 From: Evgeny Iakovlev <eiakovlev@linux.microsoft.com> Previous change slightly modified the way we handle data writes when FIFO is disabled. Previously we kept incrementing read_pos and were storing data at that position, although we only have a single-register-deep FIFO now. Then we changed it to always store data at pos 0. If guest disables FIFO and the proceeds to read data, it will work out fine, because we still read from current read_pos before setting it to 0. However, to make code less fragile, introduce a post_load hook for PL011State and move fixup read FIFO state when FIFO is disabled. Since we are introducing a post_load hook, also do some sanity checking on untrusted incoming input state. Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com> Message-id: 20230123162304.26254-3-eiakovlev@linux.microsoft.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/char/pl011.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/hw/char/pl011.c b/hw/char/pl011.c index XXXXXXX..XXXXXXX 100644 --- a/hw/char/pl011.c +++ b/hw/char/pl011.c @@ -XXX,XX +XXX,XX @@ static const VMStateDescription vmstate_pl011_clock = { } }; +static int pl011_post_load(void *opaque, int version_id) +{ + PL011State* s = opaque; + + /* Sanity-check input state */ + if (s->read_pos >= ARRAY_SIZE(s->read_fifo) || + s->read_count > ARRAY_SIZE(s->read_fifo)) { + return -1; + } + + if (!pl011_is_fifo_enabled(s) && s->read_count > 0 && s->read_pos > 0) { + /* + * Older versions of PL011 didn't ensure that the single + * character in the FIFO in FIFO-disabled mode is in + * element 0 of the array; convert to follow the current + * code's assumptions. + */ + s->read_fifo[0] = s->read_fifo[s->read_pos]; + s->read_pos = 0; + } + + return 0; +} + static const VMStateDescription vmstate_pl011 = { .name = "pl011", .version_id = 2, .minimum_version_id = 2, + .post_load = pl011_post_load, .fields = (VMStateField[]) { VMSTATE_UINT32(readbuff, PL011State), VMSTATE_UINT32(flags, PL011State), -- 2.34.1 From: Evgeny Iakovlev <eiakovlev@linux.microsoft.com> PL011 currently lacks a reset method. Implement it. Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230123162304.26254-4-eiakovlev@linux.microsoft.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/char/pl011.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-) diff --git a/hw/char/pl011.c b/hw/char/pl011.c index XXXXXXX..XXXXXXX 100644 --- a/hw/char/pl011.c +++ b/hw/char/pl011.c @@ -XXX,XX +XXX,XX @@ static void pl011_init(Object *obj) s->clk = qdev_init_clock_in(DEVICE(obj), "clk", pl011_clock_update, s, ClockUpdate); - s->read_trigger = 1; - s->ifl = 0x12; - s->cr = 0x300; - s->flags = 0x90; - s->id = pl011_id_arm; } @@ -XXX,XX +XXX,XX @@ static void pl011_realize(DeviceState *dev, Error **errp) pl011_event, NULL, s, NULL, true); } +static void pl011_reset(DeviceState *dev) +{ + PL011State *s = PL011(dev); + + s->lcr = 0; + s->rsr = 0; + s->dmacr = 0; + s->int_enabled = 0; + s->int_level = 0; + s->ilpr = 0; + s->ibrd = 0; + s->fbrd = 0; + s->read_pos = 0; + s->read_count = 0; + s->read_trigger = 1; + s->ifl = 0x12; + s->cr = 0x300; + s->flags = 0x90; +} + static void pl011_class_init(ObjectClass *oc, void *data) { DeviceClass *dc = DEVICE_CLASS(oc); dc->realize = pl011_realize; + dc->reset = pl011_reset; dc->vmsd = &vmstate_pl011; device_class_set_props(dc, pl011_properties); } -- 2.34.1 From: Evgeny Iakovlev <eiakovlev@linux.microsoft.com> Current FIFO handling code does not reset RXFE/RXFF flags when guest resets FIFO by writing to UARTLCR register, although internal FIFO state is reset to 0 read count. Actual guest-visible flag update will happen only on next data read or write attempt. As a result of that any guest that expects RXFE flag to be set (and RXFF to be cleared) after resetting FIFO will never see that happen. Signed-off-by: Evgeny Iakovlev <eiakovlev@linux.microsoft.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20230123162304.26254-5-eiakovlev@linux.microsoft.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/char/pl011.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/hw/char/pl011.c b/hw/char/pl011.c index XXXXXXX..XXXXXXX 100644 --- a/hw/char/pl011.c +++ b/hw/char/pl011.c @@ -XXX,XX +XXX,XX @@ static inline unsigned pl011_get_fifo_depth(PL011State *s) return pl011_is_fifo_enabled(s) ? PL011_FIFO_DEPTH : 1; } +static inline void pl011_reset_fifo(PL011State *s) +{ + s->read_count = 0; + s->read_pos = 0; + + /* Reset FIFO flags */ + s->flags &= ~(PL011_FLAG_RXFF | PL011_FLAG_TXFF); + s->flags |= PL011_FLAG_RXFE | PL011_FLAG_TXFE; +} + static uint64_t pl011_read(void *opaque, hwaddr offset, unsigned size) { @@ -XXX,XX +XXX,XX @@ static void pl011_write(void *opaque, hwaddr offset, case 11: /* UARTLCR_H */ /* Reset the FIFO state on FIFO enable or disable */ if ((s->lcr ^ value) & 0x10) { - s->read_count = 0; - s->read_pos = 0; + pl011_reset_fifo(s); } if ((s->lcr ^ value) & 0x1) { int break_enable = value & 0x1; @@ -XXX,XX +XXX,XX @@ static void pl011_reset(DeviceState *dev) s->ilpr = 0; s->ibrd = 0; s->fbrd = 0; - s->read_pos = 0; - s->read_count = 0; s->read_trigger = 1; s->ifl = 0x12; s->cr = 0x300; - s->flags = 0x90; + s->flags = 0; + pl011_reset_fifo(s); } static void pl011_class_init(ObjectClass *oc, void *data) -- 2.34.1 From: Alexander Graf <agraf@csgraf.de> We currently only support GICv2 emulation. To also support GICv3, we will need to pass a few system registers into their respective handler functions. This patch adds support for HVF to call into the TCG callbacks for GICv3 system register handlers. This is safe because the GICv3 TCG code is generic as long as we limit ourselves to EL0 and EL1 - which are the only modes supported by HVF. To make sure nobody trips over that, we also annotate callbacks that don't work in HVF mode, such as EL state change hooks. With GICv3 support in place, we can run with more than 8 vCPUs. Signed-off-by: Alexander Graf <agraf@csgraf.de> Message-id: 20230128224459.70676-1-agraf@csgraf.de Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/intc/arm_gicv3_cpuif.c | 16 +++- target/arm/hvf/hvf.c | 151 ++++++++++++++++++++++++++++++++++++ target/arm/hvf/trace-events | 2 + 3 files changed, 168 insertions(+), 1 deletion(-) diff --git a/hw/intc/arm_gicv3_cpuif.c b/hw/intc/arm_gicv3_cpuif.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/arm_gicv3_cpuif.c +++ b/hw/intc/arm_gicv3_cpuif.c @@ -XXX,XX +XXX,XX @@ #include "hw/irq.h" #include "cpu.h" #include "target/arm/cpregs.h" +#include "sysemu/tcg.h" +#include "sysemu/qtest.h" /* * Special case return value from hppvi_index(); must be larger than @@ -XXX,XX +XXX,XX @@ void gicv3_init_cpuif(GICv3State *s) * which case we'd get the wrong value. * So instead we define the regs with no ri->opaque info, and * get back to the GICv3CPUState from the CPUARMState. + * + * These CP regs callbacks can be called from either TCG or HVF code. */ define_arm_cp_regs(cpu, gicv3_cpuif_reginfo); @@ -XXX,XX +XXX,XX @@ void gicv3_init_cpuif(GICv3State *s) define_arm_cp_regs(cpu, gicv3_cpuif_ich_apxr23_reginfo); } } - arm_register_el_change_hook(cpu, gicv3_cpuif_el_change_hook, cs); + if (tcg_enabled() || qtest_enabled()) { + /* + * We can only trap EL changes with TCG. However the GIC interrupt + * state only changes on EL changes involving EL2 or EL3, so for + * the non-TCG case this is OK, as EL2 and EL3 can't exist. + */ + arm_register_el_change_hook(cpu, gicv3_cpuif_el_change_hook, cs); + } else { + assert(!arm_feature(&cpu->env, ARM_FEATURE_EL2)); + assert(!arm_feature(&cpu->env, ARM_FEATURE_EL3)); + } } } diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -XXX,XX +XXX,XX @@ #define SYSREG_PMCCNTR_EL0 SYSREG(3, 3, 9, 13, 0) #define SYSREG_PMCCFILTR_EL0 SYSREG(3, 3, 14, 15, 7) +#define SYSREG_ICC_AP0R0_EL1 SYSREG(3, 0, 12, 8, 4) +#define SYSREG_ICC_AP0R1_EL1 SYSREG(3, 0, 12, 8, 5) +#define SYSREG_ICC_AP0R2_EL1 SYSREG(3, 0, 12, 8, 6) +#define SYSREG_ICC_AP0R3_EL1 SYSREG(3, 0, 12, 8, 7) +#define SYSREG_ICC_AP1R0_EL1 SYSREG(3, 0, 12, 9, 0) +#define SYSREG_ICC_AP1R1_EL1 SYSREG(3, 0, 12, 9, 1) +#define SYSREG_ICC_AP1R2_EL1 SYSREG(3, 0, 12, 9, 2) +#define SYSREG_ICC_AP1R3_EL1 SYSREG(3, 0, 12, 9, 3) +#define SYSREG_ICC_ASGI1R_EL1 SYSREG(3, 0, 12, 11, 6) +#define SYSREG_ICC_BPR0_EL1 SYSREG(3, 0, 12, 8, 3) +#define SYSREG_ICC_BPR1_EL1 SYSREG(3, 0, 12, 12, 3) +#define SYSREG_ICC_CTLR_EL1 SYSREG(3, 0, 12, 12, 4) +#define SYSREG_ICC_DIR_EL1 SYSREG(3, 0, 12, 11, 1) +#define SYSREG_ICC_EOIR0_EL1 SYSREG(3, 0, 12, 8, 1) +#define SYSREG_ICC_EOIR1_EL1 SYSREG(3, 0, 12, 12, 1) +#define SYSREG_ICC_HPPIR0_EL1 SYSREG(3, 0, 12, 8, 2) +#define SYSREG_ICC_HPPIR1_EL1 SYSREG(3, 0, 12, 12, 2) +#define SYSREG_ICC_IAR0_EL1 SYSREG(3, 0, 12, 8, 0) +#define SYSREG_ICC_IAR1_EL1 SYSREG(3, 0, 12, 12, 0) +#define SYSREG_ICC_IGRPEN0_EL1 SYSREG(3, 0, 12, 12, 6) +#define SYSREG_ICC_IGRPEN1_EL1 SYSREG(3, 0, 12, 12, 7) +#define SYSREG_ICC_PMR_EL1 SYSREG(3, 0, 4, 6, 0) +#define SYSREG_ICC_RPR_EL1 SYSREG(3, 0, 12, 11, 3) +#define SYSREG_ICC_SGI0R_EL1 SYSREG(3, 0, 12, 11, 7) +#define SYSREG_ICC_SGI1R_EL1 SYSREG(3, 0, 12, 11, 5) +#define SYSREG_ICC_SRE_EL1 SYSREG(3, 0, 12, 12, 5) + #define WFX_IS_WFE (1 << 0) #define TMR_CTL_ENABLE (1 << 0) @@ -XXX,XX +XXX,XX @@ static bool is_id_sysreg(uint32_t reg) SYSREG_CRM(reg) < 8; } +static uint32_t hvf_reg2cp_reg(uint32_t reg) +{ + return ENCODE_AA64_CP_REG(CP_REG_ARM64_SYSREG_CP, + (reg >> SYSREG_CRN_SHIFT) & SYSREG_CRN_MASK, + (reg >> SYSREG_CRM_SHIFT) & SYSREG_CRM_MASK, + (reg >> SYSREG_OP0_SHIFT) & SYSREG_OP0_MASK, + (reg >> SYSREG_OP1_SHIFT) & SYSREG_OP1_MASK, + (reg >> SYSREG_OP2_SHIFT) & SYSREG_OP2_MASK); +} + +static bool hvf_sysreg_read_cp(CPUState *cpu, uint32_t reg, uint64_t *val) +{ + ARMCPU *arm_cpu = ARM_CPU(cpu); + CPUARMState *env = &arm_cpu->env; + const ARMCPRegInfo *ri; + + ri = get_arm_cp_reginfo(arm_cpu->cp_regs, hvf_reg2cp_reg(reg)); + if (ri) { + if (ri->accessfn) { + if (ri->accessfn(env, ri, true) != CP_ACCESS_OK) { + return false; + } + } + if (ri->type & ARM_CP_CONST) { + *val = ri->resetvalue; + } else if (ri->readfn) { + *val = ri->readfn(env, ri); + } else { + *val = CPREG_FIELD64(env, ri); + } + trace_hvf_vgic_read(ri->name, *val); + return true; + } + + return false; +} + static int hvf_sysreg_read(CPUState *cpu, uint32_t reg, uint32_t rt) { ARMCPU *arm_cpu = ARM_CPU(cpu); @@ -XXX,XX +XXX,XX @@ static int hvf_sysreg_read(CPUState *cpu, uint32_t reg, uint32_t rt) case SYSREG_OSDLR_EL1: /* Dummy register */ break; + case SYSREG_ICC_AP0R0_EL1: + case SYSREG_ICC_AP0R1_EL1: + case SYSREG_ICC_AP0R2_EL1: + case SYSREG_ICC_AP0R3_EL1: + case SYSREG_ICC_AP1R0_EL1: + case SYSREG_ICC_AP1R1_EL1: + case SYSREG_ICC_AP1R2_EL1: + case SYSREG_ICC_AP1R3_EL1: + case SYSREG_ICC_ASGI1R_EL1: + case SYSREG_ICC_BPR0_EL1: + case SYSREG_ICC_BPR1_EL1: + case SYSREG_ICC_DIR_EL1: + case SYSREG_ICC_EOIR0_EL1: + case SYSREG_ICC_EOIR1_EL1: + case SYSREG_ICC_HPPIR0_EL1: + case SYSREG_ICC_HPPIR1_EL1: + case SYSREG_ICC_IAR0_EL1: + case SYSREG_ICC_IAR1_EL1: + case SYSREG_ICC_IGRPEN0_EL1: + case SYSREG_ICC_IGRPEN1_EL1: + case SYSREG_ICC_PMR_EL1: + case SYSREG_ICC_SGI0R_EL1: + case SYSREG_ICC_SGI1R_EL1: + case SYSREG_ICC_SRE_EL1: + case SYSREG_ICC_CTLR_EL1: + /* Call the TCG sysreg handler. This is only safe for GICv3 regs. */ + if (!hvf_sysreg_read_cp(cpu, reg, &val)) { + hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized()); + } + break; default: if (is_id_sysreg(reg)) { /* ID system registers read as RES0 */ @@ -XXX,XX +XXX,XX @@ static void pmswinc_write(CPUARMState *env, uint64_t value) } } +static bool hvf_sysreg_write_cp(CPUState *cpu, uint32_t reg, uint64_t val) +{ + ARMCPU *arm_cpu = ARM_CPU(cpu); + CPUARMState *env = &arm_cpu->env; + const ARMCPRegInfo *ri; + + ri = get_arm_cp_reginfo(arm_cpu->cp_regs, hvf_reg2cp_reg(reg)); + + if (ri) { + if (ri->accessfn) { + if (ri->accessfn(env, ri, false) != CP_ACCESS_OK) { + return false; + } + } + if (ri->writefn) { + ri->writefn(env, ri, val); + } else { + CPREG_FIELD64(env, ri) = val; + } + + trace_hvf_vgic_write(ri->name, val); + return true; + } + + return false; +} + static int hvf_sysreg_write(CPUState *cpu, uint32_t reg, uint64_t val) { ARMCPU *arm_cpu = ARM_CPU(cpu); @@ -XXX,XX +XXX,XX @@ static int hvf_sysreg_write(CPUState *cpu, uint32_t reg, uint64_t val) case SYSREG_OSDLR_EL1: /* Dummy register */ break; + case SYSREG_ICC_AP0R0_EL1: + case SYSREG_ICC_AP0R1_EL1: + case SYSREG_ICC_AP0R2_EL1: + case SYSREG_ICC_AP0R3_EL1: + case SYSREG_ICC_AP1R0_EL1: + case SYSREG_ICC_AP1R1_EL1: + case SYSREG_ICC_AP1R2_EL1: + case SYSREG_ICC_AP1R3_EL1: + case SYSREG_ICC_ASGI1R_EL1: + case SYSREG_ICC_BPR0_EL1: + case SYSREG_ICC_BPR1_EL1: + case SYSREG_ICC_CTLR_EL1: + case SYSREG_ICC_DIR_EL1: + case SYSREG_ICC_EOIR0_EL1: + case SYSREG_ICC_EOIR1_EL1: + case SYSREG_ICC_HPPIR0_EL1: + case SYSREG_ICC_HPPIR1_EL1: + case SYSREG_ICC_IAR0_EL1: + case SYSREG_ICC_IAR1_EL1: + case SYSREG_ICC_IGRPEN0_EL1: + case SYSREG_ICC_IGRPEN1_EL1: + case SYSREG_ICC_PMR_EL1: + case SYSREG_ICC_SGI0R_EL1: + case SYSREG_ICC_SGI1R_EL1: + case SYSREG_ICC_SRE_EL1: + /* Call the TCG sysreg handler. This is only safe for GICv3 regs. */ + if (!hvf_sysreg_write_cp(cpu, reg, val)) { + hvf_raise_exception(cpu, EXCP_UDEF, syn_uncategorized()); + } + break; default: cpu_synchronize_state(cpu); trace_hvf_unhandled_sysreg_write(env->pc, reg, diff --git a/target/arm/hvf/trace-events b/target/arm/hvf/trace-events index XXXXXXX..XXXXXXX 100644 --- a/target/arm/hvf/trace-events +++ b/target/arm/hvf/trace-events @@ -XXX,XX +XXX,XX @@ hvf_unknown_hvc(uint64_t x0) "unknown HVC! 0x%016"PRIx64 hvf_unknown_smc(uint64_t x0) "unknown SMC! 0x%016"PRIx64 hvf_exit(uint64_t syndrome, uint32_t ec, uint64_t pc) "exit: 0x%"PRIx64" [ec=0x%x pc=0x%"PRIx64"]" hvf_psci_call(uint64_t x0, uint64_t x1, uint64_t x2, uint64_t x3, uint32_t cpuid) "PSCI Call x0=0x%016"PRIx64" x1=0x%016"PRIx64" x2=0x%016"PRIx64" x3=0x%016"PRIx64" cpu=0x%x" +hvf_vgic_write(const char *name, uint64_t val) "vgic write to %s [val=0x%016"PRIx64"]" +hvf_vgic_read(const char *name, uint64_t val) "vgic read from %s [val=0x%016"PRIx64"]" -- 2.34.1 From: Alexander Graf <agraf@csgraf.de> Up to now, the finalize_gic_version() code open coded what is essentially a support bitmap match between host/emulation environment and desired target GIC type. This open coding leads to undesirable side effects. For example, a VM with KVM and -smp 10 will automatically choose GICv3 while the same command line with TCG will stay on GICv2 and fail the launch. This patch combines the TCG and KVM matching code paths by making everything a 2 pass process. First, we determine which GIC versions the current environment is able to support, then we go through a single state machine to determine which target GIC mode that means for us. After this patch, the only user noticable changes should be consolidated error messages as well as TCG -M virt supporting -smp > 8 automatically. Signed-off-by: Alexander Graf <agraf@csgraf.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Message-id: 20221223090107.98888-2-agraf@csgraf.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- include/hw/arm/virt.h | 15 ++-- hw/arm/virt.c | 198 ++++++++++++++++++++++-------------------- 2 files changed, 112 insertions(+), 101 deletions(-) diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index XXXXXXX..XXXXXXX 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -XXX,XX +XXX,XX @@ typedef enum VirtMSIControllerType { } VirtMSIControllerType; typedef enum VirtGICType { - VIRT_GIC_VERSION_MAX, - VIRT_GIC_VERSION_HOST, - VIRT_GIC_VERSION_2, - VIRT_GIC_VERSION_3, - VIRT_GIC_VERSION_4, + VIRT_GIC_VERSION_MAX = 0, + VIRT_GIC_VERSION_HOST = 1, + /* The concrete GIC values have to match the GIC version number */ + VIRT_GIC_VERSION_2 = 2, + VIRT_GIC_VERSION_3 = 3, + VIRT_GIC_VERSION_4 = 4, VIRT_GIC_VERSION_NOSEL, } VirtGICType; +#define VIRT_GIC_VERSION_2_MASK BIT(VIRT_GIC_VERSION_2) +#define VIRT_GIC_VERSION_3_MASK BIT(VIRT_GIC_VERSION_3) +#define VIRT_GIC_VERSION_4_MASK BIT(VIRT_GIC_VERSION_4) + struct VirtMachineClass { MachineClass parent; bool disallow_affinity_adjustment; diff --git a/hw/arm/virt.c b/hw/arm/virt.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -XXX,XX +XXX,XX @@ static void virt_set_memmap(VirtMachineState *vms, int pa_bits) } } +static VirtGICType finalize_gic_version_do(const char *accel_name, + VirtGICType gic_version, + int gics_supported, + unsigned int max_cpus) +{ + /* Convert host/max/nosel to GIC version number */ + switch (gic_version) { + case VIRT_GIC_VERSION_HOST: + if (!kvm_enabled()) { + error_report("gic-version=host requires KVM"); + exit(1); + } + + /* For KVM, gic-version=host means gic-version=max */ + return finalize_gic_version_do(accel_name, VIRT_GIC_VERSION_MAX, + gics_supported, max_cpus); + case VIRT_GIC_VERSION_MAX: + if (gics_supported & VIRT_GIC_VERSION_4_MASK) { + gic_version = VIRT_GIC_VERSION_4; + } else if (gics_supported & VIRT_GIC_VERSION_3_MASK) { + gic_version = VIRT_GIC_VERSION_3; + } else { + gic_version = VIRT_GIC_VERSION_2; + } + break; + case VIRT_GIC_VERSION_NOSEL: + if ((gics_supported & VIRT_GIC_VERSION_2_MASK) && + max_cpus <= GIC_NCPU) { + gic_version = VIRT_GIC_VERSION_2; + } else if (gics_supported & VIRT_GIC_VERSION_3_MASK) { + /* + * in case the host does not support v2 emulation or + * the end-user requested more than 8 VCPUs we now default + * to v3. In any case defaulting to v2 would be broken. + */ + gic_version = VIRT_GIC_VERSION_3; + } else if (max_cpus > GIC_NCPU) { + error_report("%s only supports GICv2 emulation but more than 8 " + "vcpus are requested", accel_name); + exit(1); + } + break; + case VIRT_GIC_VERSION_2: + case VIRT_GIC_VERSION_3: + case VIRT_GIC_VERSION_4: + break; + } + + /* Check chosen version is effectively supported */ + switch (gic_version) { + case VIRT_GIC_VERSION_2: + if (!(gics_supported & VIRT_GIC_VERSION_2_MASK)) { + error_report("%s does not support GICv2 emulation", accel_name); + exit(1); + } + break; + case VIRT_GIC_VERSION_3: + if (!(gics_supported & VIRT_GIC_VERSION_3_MASK)) { + error_report("%s does not support GICv3 emulation", accel_name); + exit(1); + } + break; + case VIRT_GIC_VERSION_4: + if (!(gics_supported & VIRT_GIC_VERSION_4_MASK)) { + error_report("%s does not support GICv4 emulation, is virtualization=on?", + accel_name); + exit(1); + } + break; + default: + error_report("logic error in finalize_gic_version"); + exit(1); + break; + } + + return gic_version; +} + /* * finalize_gic_version - Determines the final gic_version * according to the gic-version property @@ -XXX,XX +XXX,XX @@ static void virt_set_memmap(VirtMachineState *vms, int pa_bits) */ static void finalize_gic_version(VirtMachineState *vms) { + const char *accel_name = current_accel_name(); unsigned int max_cpus = MACHINE(vms)->smp.max_cpus; + int gics_supported = 0; - if (kvm_enabled()) { - int probe_bitmap; + /* Determine which GIC versions the current environment supports */ + if (kvm_enabled() && kvm_irqchip_in_kernel()) { + int probe_bitmap = kvm_arm_vgic_probe(); - if (!kvm_irqchip_in_kernel()) { - switch (vms->gic_version) { - case VIRT_GIC_VERSION_HOST: - warn_report( - "gic-version=host not relevant with kernel-irqchip=off " - "as only userspace GICv2 is supported. Using v2 ..."); - return; - case VIRT_GIC_VERSION_MAX: - case VIRT_GIC_VERSION_NOSEL: - vms->gic_version = VIRT_GIC_VERSION_2; - return; - case VIRT_GIC_VERSION_2: - return; - case VIRT_GIC_VERSION_3: - error_report( - "gic-version=3 is not supported with kernel-irqchip=off"); - exit(1); - case VIRT_GIC_VERSION_4: - error_report( - "gic-version=4 is not supported with kernel-irqchip=off"); - exit(1); - } - } - - probe_bitmap = kvm_arm_vgic_probe(); if (!probe_bitmap) { error_report("Unable to determine GIC version supported by host"); exit(1); } - switch (vms->gic_version) { - case VIRT_GIC_VERSION_HOST: - case VIRT_GIC_VERSION_MAX: - if (probe_bitmap & KVM_ARM_VGIC_V3) { - vms->gic_version = VIRT_GIC_VERSION_3; - } else { - vms->gic_version = VIRT_GIC_VERSION_2; - } - return; - case VIRT_GIC_VERSION_NOSEL: - if ((probe_bitmap & KVM_ARM_VGIC_V2) && max_cpus <= GIC_NCPU) { - vms->gic_version = VIRT_GIC_VERSION_2; - } else if (probe_bitmap & KVM_ARM_VGIC_V3) { - /* - * in case the host does not support v2 in-kernel emulation or - * the end-user requested more than 8 VCPUs we now default - * to v3. In any case defaulting to v2 would be broken. - */ - vms->gic_version = VIRT_GIC_VERSION_3; - } else if (max_cpus > GIC_NCPU) { - error_report("host only supports in-kernel GICv2 emulation " - "but more than 8 vcpus are requested"); - exit(1); - } - break; - case VIRT_GIC_VERSION_2: - case VIRT_GIC_VERSION_3: - break; - case VIRT_GIC_VERSION_4: - error_report("gic-version=4 is not supported with KVM"); - exit(1); + if (probe_bitmap & KVM_ARM_VGIC_V2) { + gics_supported |= VIRT_GIC_VERSION_2_MASK; } - - /* Check chosen version is effectively supported by the host */ - if (vms->gic_version == VIRT_GIC_VERSION_2 && - !(probe_bitmap & KVM_ARM_VGIC_V2)) { - error_report("host does not support in-kernel GICv2 emulation"); - exit(1); - } else if (vms->gic_version == VIRT_GIC_VERSION_3 && - !(probe_bitmap & KVM_ARM_VGIC_V3)) { - error_report("host does not support in-kernel GICv3 emulation"); - exit(1); + if (probe_bitmap & KVM_ARM_VGIC_V3) { + gics_supported |= VIRT_GIC_VERSION_3_MASK; } - return; - } - - /* TCG mode */ - switch (vms->gic_version) { - case VIRT_GIC_VERSION_NOSEL: - vms->gic_version = VIRT_GIC_VERSION_2; - break; - case VIRT_GIC_VERSION_MAX: + } else if (kvm_enabled() && !kvm_irqchip_in_kernel()) { + /* KVM w/o kernel irqchip can only deal with GICv2 */ + gics_supported |= VIRT_GIC_VERSION_2_MASK; + accel_name = "KVM with kernel-irqchip=off"; + } else { + gics_supported |= VIRT_GIC_VERSION_2_MASK; if (module_object_class_by_name("arm-gicv3")) { - /* CONFIG_ARM_GICV3_TCG was set */ + gics_supported |= VIRT_GIC_VERSION_3_MASK; if (vms->virt) { /* GICv4 only makes sense if CPU has EL2 */ - vms->gic_version = VIRT_GIC_VERSION_4; - } else { - vms->gic_version = VIRT_GIC_VERSION_3; + gics_supported |= VIRT_GIC_VERSION_4_MASK; } - } else { - vms->gic_version = VIRT_GIC_VERSION_2; } - break; - case VIRT_GIC_VERSION_HOST: - error_report("gic-version=host requires KVM"); - exit(1); - case VIRT_GIC_VERSION_4: - if (!vms->virt) { - error_report("gic-version=4 requires virtualization enabled"); - exit(1); - } - break; - case VIRT_GIC_VERSION_2: - case VIRT_GIC_VERSION_3: - break; } + + /* + * Then convert helpers like host/max to concrete GIC versions and ensure + * the desired version is supported + */ + vms->gic_version = finalize_gic_version_do(accel_name, vms->gic_version, + gics_supported, max_cpus); } /* -- 2.34.1 From: Alexander Graf <agraf@csgraf.de> Let's explicitly list out all accelerators that we support when trying to determine the supported set of GIC versions. KVM was already separate, so the only missing one is HVF which simply reuses all of TCG's emulation code and thus has the same compatibility matrix. Signed-off-by: Alexander Graf <agraf@csgraf.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Zenghui Yu <yuzenghui@huawei.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20221223090107.98888-3-agraf@csgraf.de [PMM: Added qtest to the list of accelerators] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/virt.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -XXX,XX +XXX,XX @@ #include "sysemu/numa.h" #include "sysemu/runstate.h" #include "sysemu/tpm.h" +#include "sysemu/tcg.h" #include "sysemu/kvm.h" #include "sysemu/hvf.h" +#include "sysemu/qtest.h" #include "hw/loader.h" #include "qapi/error.h" #include "qemu/bitops.h" @@ -XXX,XX +XXX,XX @@ static void finalize_gic_version(VirtMachineState *vms) /* KVM w/o kernel irqchip can only deal with GICv2 */ gics_supported |= VIRT_GIC_VERSION_2_MASK; accel_name = "KVM with kernel-irqchip=off"; - } else { + } else if (tcg_enabled() || hvf_enabled() || qtest_enabled()) { gics_supported |= VIRT_GIC_VERSION_2_MASK; if (module_object_class_by_name("arm-gicv3")) { gics_supported |= VIRT_GIC_VERSION_3_MASK; @@ -XXX,XX +XXX,XX @@ static void finalize_gic_version(VirtMachineState *vms) gics_supported |= VIRT_GIC_VERSION_4_MASK; } } + } else { + error_report("Unsupported accelerator, can not determine GIC support"); + exit(1); } /* -- 2.34.1 From: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org> Cortex-A76 supports 40bits of address space. sbsa-ref's memory starts above this limit. Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20230126114416.2447685-1-marcin.juszkiewicz@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- hw/arm/sbsa-ref.c | 1 - 1 file changed, 1 deletion(-) diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c index XXXXXXX..XXXXXXX 100644 --- a/hw/arm/sbsa-ref.c +++ b/hw/arm/sbsa-ref.c @@ -XXX,XX +XXX,XX @@ static const int sbsa_ref_irqmap[] = { static const char * const valid_cpus[] = { ARM_CPU_TYPE_NAME("cortex-a57"), ARM_CPU_TYPE_NAME("cortex-a72"), - ARM_CPU_TYPE_NAME("cortex-a76"), ARM_CPU_TYPE_NAME("neoverse-n1"), ARM_CPU_TYPE_NAME("max"), }; -- 2.34.1 The encodings 0,0,C7,C9,0 and 0,0,C7,C9,1 are AT SP1E1RP and AT S1E1WP, but our ARMCPRegInfo definitions for them incorrectly name them AT S1E1R and AT S1E1W (which are entirely different instructions). Fix the names. (This has no guest-visible effect as the names are for debug purposes only.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-2-peter.maydell@linaro.org Message-id: 20230127175507.2895013-2-peter.maydell@linaro.org --- target/arm/helper.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo vhe_reginfo[] = { #ifndef CONFIG_USER_ONLY static const ARMCPRegInfo ats1e1_reginfo[] = { - { .name = "AT_S1E1R", .state = ARM_CP_STATE_AA64, + { .name = "AT_S1E1RP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 0, .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, .writefn = ats_write64 }, - { .name = "AT_S1E1W", .state = ARM_CP_STATE_AA64, + { .name = "AT_S1E1WP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 1, .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, .writefn = ats_write64 }, -- 2.34.1 The AArch32 ATS12NSO* address translation operations are supposed to trap to either EL2 or EL3 if they're executed at Secure EL1 (which can only happen if EL3 is AArch64). We implement this, but we got the syndrome value wrong: like other traps to EL2 or EL3 on an AArch32 cpreg access, they should report the 0x3 syndrome, not the 0x0 'uncategorized' syndrome. This is clear in the access pseudocode for these instructions. Fix the syndrome value for these operations by correcting the returned value from the ats_access() function. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-3-peter.maydell@linaro.org Message-id: 20230127175507.2895013-3-peter.maydell@linaro.org --- target/arm/helper.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static CPAccessResult ats_access(CPUARMState *env, const ARMCPRegInfo *ri, if (arm_current_el(env) == 1) { if (arm_is_secure_below_el3(env)) { if (env->cp15.scr_el3 & SCR_EEL2) { - return CP_ACCESS_TRAP_UNCATEGORIZED_EL2; + return CP_ACCESS_TRAP_EL2; } - return CP_ACCESS_TRAP_UNCATEGORIZED_EL3; + return CP_ACCESS_TRAP_EL3; } return CP_ACCESS_TRAP_UNCATEGORIZED; } -- 2.34.1 We added the CPAccessResult values CP_ACCESS_TRAP_UNCATEGORIZED_EL2 and CP_ACCESS_TRAP_UNCATEGORIZED_EL3 purely in order to use them in the ats_access() function, but doing so was incorrect (a bug fixed in a previous commit). There aren't any cases where we want an access function to be able to request a trap to EL2 or EL3 with a zero syndrome value, so remove these enum values. As well as cleaning up dead code, the motivation here is that we'd like to implement fine-grained-trap handling in helper_access_check_cp_reg(). Although the fine-grained traps to EL2 are always lower priority than trap-to-same-EL and higher priority than trap-to-EL3, they are in the middle of various other kinds of trap-to-EL2. Knowing that a trap-to-EL2 must always for us have the same syndrome (ie that an access function will return CP_ACCESS_TRAP_EL2 and there is no other kind of trap-to-EL2 enum value) means we don't have to try to choose which of the two syndrome values to report if the access would trap to EL2 both for the fine-grained-trap and because the access function requires it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-4-peter.maydell@linaro.org Message-id: 20230127175507.2895013-4-peter.maydell@linaro.org --- target/arm/cpregs.h | 4 ++-- target/arm/op_helper.c | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum CPAccessResult { * Access fails and results in an exception syndrome 0x0 ("uncategorized"). * Note that this is not a catch-all case -- the set of cases which may * result in this failure is specifically defined by the architecture. + * This trap is always to the usual target EL, never directly to a + * specified target EL. */ CP_ACCESS_TRAP_UNCATEGORIZED = (2 << 2), - CP_ACCESS_TRAP_UNCATEGORIZED_EL2 = CP_ACCESS_TRAP_UNCATEGORIZED | 2, - CP_ACCESS_TRAP_UNCATEGORIZED_EL3 = CP_ACCESS_TRAP_UNCATEGORIZED | 3, } CPAccessResult; typedef struct ARMCPRegInfo ARMCPRegInfo; diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/op_helper.c +++ b/target/arm/op_helper.c @@ -XXX,XX +XXX,XX @@ const void *HELPER(access_check_cp_reg)(CPUARMState *env, uint32_t key, case CP_ACCESS_TRAP: break; case CP_ACCESS_TRAP_UNCATEGORIZED: + /* Only CP_ACCESS_TRAP traps are direct to a specified EL */ + assert((res & CP_ACCESS_EL_MASK) == 0); if (cpu_isar_feature(aa64_ids, cpu) && isread && arm_cpreg_in_idspace(ri)) { /* -- 2.34.1 Rearrange the code in do_coproc_insn() so that we calculate the syndrome value for a potential trap early; we're about to add a second check that wants this value earlier than where it is currently determined. (Specifically, a trap to EL2 because of HSTR_EL2 should take priority over an UNDEF to EL1, even when the UNDEF is because the register does not exist at all or because its ri->access bits non-configurably fail the access. So the check we put in for HSTR_EL2 trapping at EL1 (which needs the syndrome) is going to have to be done before the check "is the ARMCPRegInfo pointer NULL".) This commit is just code motion; the change to HSTR_EL2 handling that will use the 'syndrome' variable is in a subsequent commit. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-5-peter.maydell@linaro.org Message-id: 20230127175507.2895013-5-peter.maydell@linaro.org --- target/arm/translate.c | 83 +++++++++++++++++++++--------------------- 1 file changed, 41 insertions(+), 42 deletions(-) diff --git a/target/arm/translate.c b/target/arm/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64, const ARMCPRegInfo *ri = get_arm_cp_reginfo(s->cp_regs, key); TCGv_ptr tcg_ri = NULL; bool need_exit_tb; + uint32_t syndrome; + + /* + * Note that since we are an implementation which takes an + * exception on a trapped conditional instruction only if the + * instruction passes its condition code check, we can take + * advantage of the clause in the ARM ARM that allows us to set + * the COND field in the instruction to 0xE in all cases. + * We could fish the actual condition out of the insn (ARM) + * or the condexec bits (Thumb) but it isn't necessary. + */ + switch (cpnum) { + case 14: + if (is64) { + syndrome = syn_cp14_rrt_trap(1, 0xe, opc1, crm, rt, rt2, + isread, false); + } else { + syndrome = syn_cp14_rt_trap(1, 0xe, opc1, opc2, crn, crm, + rt, isread, false); + } + break; + case 15: + if (is64) { + syndrome = syn_cp15_rrt_trap(1, 0xe, opc1, crm, rt, rt2, + isread, false); + } else { + syndrome = syn_cp15_rt_trap(1, 0xe, opc1, opc2, crn, crm, + rt, isread, false); + } + break; + default: + /* + * ARMv8 defines that only coprocessors 14 and 15 exist, + * so this can only happen if this is an ARMv7 or earlier CPU, + * in which case the syndrome information won't actually be + * guest visible. + */ + assert(!arm_dc_feature(s, ARM_FEATURE_V8)); + syndrome = syn_uncategorized(); + break; + } if (!ri) { /* @@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64, * Note that on XScale all cp0..c13 registers do an access check * call in order to handle c15_cpar. */ - uint32_t syndrome; - - /* - * Note that since we are an implementation which takes an - * exception on a trapped conditional instruction only if the - * instruction passes its condition code check, we can take - * advantage of the clause in the ARM ARM that allows us to set - * the COND field in the instruction to 0xE in all cases. - * We could fish the actual condition out of the insn (ARM) - * or the condexec bits (Thumb) but it isn't necessary. - */ - switch (cpnum) { - case 14: - if (is64) { - syndrome = syn_cp14_rrt_trap(1, 0xe, opc1, crm, rt, rt2, - isread, false); - } else { - syndrome = syn_cp14_rt_trap(1, 0xe, opc1, opc2, crn, crm, - rt, isread, false); - } - break; - case 15: - if (is64) { - syndrome = syn_cp15_rrt_trap(1, 0xe, opc1, crm, rt, rt2, - isread, false); - } else { - syndrome = syn_cp15_rt_trap(1, 0xe, opc1, opc2, crn, crm, - rt, isread, false); - } - break; - default: - /* - * ARMv8 defines that only coprocessors 14 and 15 exist, - * so this can only happen if this is an ARMv7 or earlier CPU, - * in which case the syndrome information won't actually be - * guest visible. - */ - assert(!arm_dc_feature(s, ARM_FEATURE_V8)); - syndrome = syn_uncategorized(); - break; - } - gen_set_condexec(s); gen_update_pc(s, 0); tcg_ri = tcg_temp_new_ptr(); -- 2.34.1 The HSTR_EL2 register has a collection of trap bits which allow trapping to EL2 for AArch32 EL0 or EL1 accesses to coprocessor registers. The specification of these bits is that when the bit is set we should trap * EL1 accesses * EL0 accesses, if the access is not UNDEFINED when the trap bit is 0 In other words, all UNDEF traps from EL0 to EL1 take precedence over the HSTR_EL2 trap to EL2. (Since this is all AArch32, the only kind of trap-to-EL1 is the UNDEF.) Our implementation doesn't quite get this right -- we check for traps in the order: * no such register * ARMCPRegInfo::access bits * HSTR_EL2 trap bits * ARMCPRegInfo::accessfn So UNDEFs that happen because of the access bits or because the register doesn't exist at all correctly take priority over the HSTR_EL2 trap, but where a register can UNDEF at EL0 because of the accessfn we are incorrectly always taking the HSTR_EL2 trap. There aren't many of these, but one example is the PMCR; if you look at the access pseudocode for this register you can see that UNDEFs taken because of the value of PMUSERENR.EN are checked before the HSTR_EL2 bit. Rearrange helper_access_check_cp_reg() so that we always call the accessfn, and use its return value if it indicates that the access traps to EL0 rather than continuing to do the HSTR_EL2 check. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-6-peter.maydell@linaro.org Message-id: 20230127175507.2895013-6-peter.maydell@linaro.org --- target/arm/op_helper.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/op_helper.c +++ b/target/arm/op_helper.c @@ -XXX,XX +XXX,XX @@ const void *HELPER(access_check_cp_reg)(CPUARMState *env, uint32_t key, goto fail; } + if (ri->accessfn) { + res = ri->accessfn(env, ri, isread); + } + /* - * Check for an EL2 trap due to HSTR_EL2. We expect EL0 accesses - * to sysregs non accessible at EL0 to have UNDEF-ed already. + * If the access function indicates a trap from EL0 to EL1 then + * that always takes priority over the HSTR_EL2 trap. (If it indicates + * a trap to EL3, then the HSTR_EL2 trap takes priority; if it indicates + * a trap to EL2, then the syndrome is the same either way so we don't + * care whether technically the architecture says that HSTR_EL2 trap or + * the other trap takes priority. So we take the "check HSTR_EL2" path + * for all of those cases.) */ + if (res != CP_ACCESS_OK && ((res & CP_ACCESS_EL_MASK) == 0) && + arm_current_el(env) == 0) { + goto fail; + } + if (!is_a64(env) && arm_current_el(env) < 2 && ri->cp == 15 && (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { uint32_t mask = 1 << ri->crn; @@ -XXX,XX +XXX,XX @@ const void *HELPER(access_check_cp_reg)(CPUARMState *env, uint32_t key, } } - if (ri->accessfn) { - res = ri->accessfn(env, ri, isread); - } if (likely(res == CP_ACCESS_OK)) { return ri; } -- 2.34.1 The semantics of HSTR_EL2 require that it traps cpreg accesses to EL2 for: * EL1 accesses * EL0 accesses, if the access is not UNDEFINED when the trap bit is 0 (You can see this in the I_ZFGJP priority ordering, where HSTR_EL2 traps from EL1 to EL2 are priority 12, UNDEFs are priority 13, and HSTR_EL2 traps from EL0 are priority 15.) However, we don't get this right for EL1 accesses which UNDEF because the register doesn't exist at all or because its ri->access bits non-configurably forbid the access. At EL1, check for the HSTR_EL2 trap early, before either of these UNDEF reasons. We have to retain the HSTR_EL2 check in access_check_cp_reg(), because at EL0 any kind of UNDEF-to-EL1 (including "no such register", "bad ri->access" and "ri->accessfn returns 'trap to EL1'") takes precedence over the trap to EL2. But we only need to do that check for EL0 now. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20230130182459.3309057-7-peter.maydell@linaro.org Message-id: 20230127175507.2895013-7-peter.maydell@linaro.org --- target/arm/op_helper.c | 6 +++++- target/arm/translate.c | 28 +++++++++++++++++++++++++++- 2 files changed, 32 insertions(+), 2 deletions(-) diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/op_helper.c +++ b/target/arm/op_helper.c @@ -XXX,XX +XXX,XX @@ const void *HELPER(access_check_cp_reg)(CPUARMState *env, uint32_t key, goto fail; } - if (!is_a64(env) && arm_current_el(env) < 2 && ri->cp == 15 && + /* + * HSTR_EL2 traps from EL1 are checked earlier, in generated code; + * we only need to check here for traps from EL0. + */ + if (!is_a64(env) && arm_current_el(env) == 0 && ri->cp == 15 && (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { uint32_t mask = 1 << ri->crn; diff --git a/target/arm/translate.c b/target/arm/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64, break; } + if (s->hstr_active && cpnum == 15 && s->current_el == 1) { + /* + * At EL1, check for a HSTR_EL2 trap, which must take precedence + * over the UNDEF for "no such register" or the UNDEF for "access + * permissions forbid this EL1 access". HSTR_EL2 traps from EL0 + * only happen if the cpreg doesn't UNDEF at EL0, so we do those in + * access_check_cp_reg(), after the checks for whether the access + * configurably trapped to EL1. + */ + uint32_t maskbit = is64 ? crm : crn; + + if (maskbit != 4 && maskbit != 14) { + /* T4 and T14 are RES0 so never cause traps */ + TCGv_i32 t; + DisasLabel over = gen_disas_label(s); + + t = load_cpu_offset(offsetoflow32(CPUARMState, cp15.hstr_el2)); + tcg_gen_andi_i32(t, t, 1u << maskbit); + tcg_gen_brcondi_i32(TCG_COND_EQ, t, 0, over.label); + tcg_temp_free_i32(t); + + gen_exception_insn(s, 0, EXCP_UDEF, syndrome); + set_disas_label(s, over); + } + } + if (!ri) { /* * Unknown register; this might be a guest error or a QEMU @@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64, return; } - if (s->hstr_active || ri->accessfn || + if ((s->hstr_active && s->current_el == 0) || ri->accessfn || (arm_dc_feature(s, ARM_FEATURE_XSCALE) && cpnum < 14)) { /* * Emit code to perform further access permissions checks at -- 2.34.1 The HSTR_EL2 register is not supposed to have an effect unless EL2 is enabled in the current security state. We weren't checking for this, which meant that if the guest set up the HSTR_EL2 register we would incorrectly trap even for accesses from Secure EL0 and EL1. Add the missing checks. (Other places where we look at HSTR_EL2 for the not-in-v8A bits TTEE and TJDBX are already checking that we are in NS EL0 or EL1, so there we alredy know EL2 is enabled.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-8-peter.maydell@linaro.org Message-id: 20230127175507.2895013-8-peter.maydell@linaro.org --- target/arm/helper.c | 2 +- target/arm/op_helper.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static CPUARMTBFlags rebuild_hflags_a32(CPUARMState *env, int fp_el, DP_TBFLAG_A32(flags, VFPEN, 1); } - if (el < 2 && env->cp15.hstr_el2 && + if (el < 2 && env->cp15.hstr_el2 && arm_is_el2_enabled(env) && (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { DP_TBFLAG_A32(flags, HSTR_ACTIVE, 1); } diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/op_helper.c +++ b/target/arm/op_helper.c @@ -XXX,XX +XXX,XX @@ const void *HELPER(access_check_cp_reg)(CPUARMState *env, uint32_t key, * we only need to check here for traps from EL0. */ if (!is_a64(env) && arm_current_el(env) == 0 && ri->cp == 15 && + arm_is_el2_enabled(env) && (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { uint32_t mask = 1 << ri->crn; -- 2.34.1 Define the system registers which are provided by the FEAT_FGT fine-grained trap architectural feature: HFGRTR_EL2, HFGWTR_EL2, HDFGRTR_EL2, HDFGWTR_EL2, HFGITR_EL2 All these registers are a set of bit fields, where each bit is set for a trap and clear to not trap on a particular system register access. The R and W register pairs are for system registers, allowing trapping to be done separately for reads and writes; the I register is for system instructions where trapping is on instruction execution. The data storage in the CPU state struct is arranged as a set of arrays rather than separate fields so that when we're looking up the bits for a system register access we can just index into the array rather than having to use a switch to select a named struct member. The later FEAT_FGT2 will add extra elements to these arrays. The field definitions for the new registers are in cpregs.h because in practice the code that needs them is code that also needs the cpregs information; cpu.h is included in a lot more files. We're also going to add some FGT-specific definitions to cpregs.h in the next commit. We do not implement HAFGRTR_EL2, because we don't implement FEAT_AMUv1. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-9-peter.maydell@linaro.org Message-id: 20230127175507.2895013-9-peter.maydell@linaro.org --- target/arm/cpregs.h | 285 ++++++++++++++++++++++++++++++++++++++++++++ target/arm/cpu.h | 15 +++ target/arm/helper.c | 40 +++++++ 3 files changed, 340 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum CPAccessResult { CP_ACCESS_TRAP_UNCATEGORIZED = (2 << 2), } CPAccessResult; +/* Indexes into fgt_read[] */ +#define FGTREG_HFGRTR 0 +#define FGTREG_HDFGRTR 1 +/* Indexes into fgt_write[] */ +#define FGTREG_HFGWTR 0 +#define FGTREG_HDFGWTR 1 +/* Indexes into fgt_exec[] */ +#define FGTREG_HFGITR 0 + +FIELD(HFGRTR_EL2, AFSR0_EL1, 0, 1) +FIELD(HFGRTR_EL2, AFSR1_EL1, 1, 1) +FIELD(HFGRTR_EL2, AIDR_EL1, 2, 1) +FIELD(HFGRTR_EL2, AMAIR_EL1, 3, 1) +FIELD(HFGRTR_EL2, APDAKEY, 4, 1) +FIELD(HFGRTR_EL2, APDBKEY, 5, 1) +FIELD(HFGRTR_EL2, APGAKEY, 6, 1) +FIELD(HFGRTR_EL2, APIAKEY, 7, 1) +FIELD(HFGRTR_EL2, APIBKEY, 8, 1) +FIELD(HFGRTR_EL2, CCSIDR_EL1, 9, 1) +FIELD(HFGRTR_EL2, CLIDR_EL1, 10, 1) +FIELD(HFGRTR_EL2, CONTEXTIDR_EL1, 11, 1) +FIELD(HFGRTR_EL2, CPACR_EL1, 12, 1) +FIELD(HFGRTR_EL2, CSSELR_EL1, 13, 1) +FIELD(HFGRTR_EL2, CTR_EL0, 14, 1) +FIELD(HFGRTR_EL2, DCZID_EL0, 15, 1) +FIELD(HFGRTR_EL2, ESR_EL1, 16, 1) +FIELD(HFGRTR_EL2, FAR_EL1, 17, 1) +FIELD(HFGRTR_EL2, ISR_EL1, 18, 1) +FIELD(HFGRTR_EL2, LORC_EL1, 19, 1) +FIELD(HFGRTR_EL2, LOREA_EL1, 20, 1) +FIELD(HFGRTR_EL2, LORID_EL1, 21, 1) +FIELD(HFGRTR_EL2, LORN_EL1, 22, 1) +FIELD(HFGRTR_EL2, LORSA_EL1, 23, 1) +FIELD(HFGRTR_EL2, MAIR_EL1, 24, 1) +FIELD(HFGRTR_EL2, MIDR_EL1, 25, 1) +FIELD(HFGRTR_EL2, MPIDR_EL1, 26, 1) +FIELD(HFGRTR_EL2, PAR_EL1, 27, 1) +FIELD(HFGRTR_EL2, REVIDR_EL1, 28, 1) +FIELD(HFGRTR_EL2, SCTLR_EL1, 29, 1) +FIELD(HFGRTR_EL2, SCXTNUM_EL1, 30, 1) +FIELD(HFGRTR_EL2, SCXTNUM_EL0, 31, 1) +FIELD(HFGRTR_EL2, TCR_EL1, 32, 1) +FIELD(HFGRTR_EL2, TPIDR_EL1, 33, 1) +FIELD(HFGRTR_EL2, TPIDRRO_EL0, 34, 1) +FIELD(HFGRTR_EL2, TPIDR_EL0, 35, 1) +FIELD(HFGRTR_EL2, TTBR0_EL1, 36, 1) +FIELD(HFGRTR_EL2, TTBR1_EL1, 37, 1) +FIELD(HFGRTR_EL2, VBAR_EL1, 38, 1) +FIELD(HFGRTR_EL2, ICC_IGRPENN_EL1, 39, 1) +FIELD(HFGRTR_EL2, ERRIDR_EL1, 40, 1) +FIELD(HFGRTR_EL2, ERRSELR_EL1, 41, 1) +FIELD(HFGRTR_EL2, ERXFR_EL1, 42, 1) +FIELD(HFGRTR_EL2, ERXCTLR_EL1, 43, 1) +FIELD(HFGRTR_EL2, ERXSTATUS_EL1, 44, 1) +FIELD(HFGRTR_EL2, ERXMISCN_EL1, 45, 1) +FIELD(HFGRTR_EL2, ERXPFGF_EL1, 46, 1) +FIELD(HFGRTR_EL2, ERXPFGCTL_EL1, 47, 1) +FIELD(HFGRTR_EL2, ERXPFGCDN_EL1, 48, 1) +FIELD(HFGRTR_EL2, ERXADDR_EL1, 49, 1) +FIELD(HFGRTR_EL2, NACCDATA_EL1, 50, 1) +/* 51-53: RES0 */ +FIELD(HFGRTR_EL2, NSMPRI_EL1, 54, 1) +FIELD(HFGRTR_EL2, NTPIDR2_EL0, 55, 1) +/* 56-63: RES0 */ + +/* These match HFGRTR but bits for RO registers are RES0 */ +FIELD(HFGWTR_EL2, AFSR0_EL1, 0, 1) +FIELD(HFGWTR_EL2, AFSR1_EL1, 1, 1) +FIELD(HFGWTR_EL2, AMAIR_EL1, 3, 1) +FIELD(HFGWTR_EL2, APDAKEY, 4, 1) +FIELD(HFGWTR_EL2, APDBKEY, 5, 1) +FIELD(HFGWTR_EL2, APGAKEY, 6, 1) +FIELD(HFGWTR_EL2, APIAKEY, 7, 1) +FIELD(HFGWTR_EL2, APIBKEY, 8, 1) +FIELD(HFGWTR_EL2, CONTEXTIDR_EL1, 11, 1) +FIELD(HFGWTR_EL2, CPACR_EL1, 12, 1) +FIELD(HFGWTR_EL2, CSSELR_EL1, 13, 1) +FIELD(HFGWTR_EL2, ESR_EL1, 16, 1) +FIELD(HFGWTR_EL2, FAR_EL1, 17, 1) +FIELD(HFGWTR_EL2, LORC_EL1, 19, 1) +FIELD(HFGWTR_EL2, LOREA_EL1, 20, 1) +FIELD(HFGWTR_EL2, LORN_EL1, 22, 1) +FIELD(HFGWTR_EL2, LORSA_EL1, 23, 1) +FIELD(HFGWTR_EL2, MAIR_EL1, 24, 1) +FIELD(HFGWTR_EL2, PAR_EL1, 27, 1) +FIELD(HFGWTR_EL2, SCTLR_EL1, 29, 1) +FIELD(HFGWTR_EL2, SCXTNUM_EL1, 30, 1) +FIELD(HFGWTR_EL2, SCXTNUM_EL0, 31, 1) +FIELD(HFGWTR_EL2, TCR_EL1, 32, 1) +FIELD(HFGWTR_EL2, TPIDR_EL1, 33, 1) +FIELD(HFGWTR_EL2, TPIDRRO_EL0, 34, 1) +FIELD(HFGWTR_EL2, TPIDR_EL0, 35, 1) +FIELD(HFGWTR_EL2, TTBR0_EL1, 36, 1) +FIELD(HFGWTR_EL2, TTBR1_EL1, 37, 1) +FIELD(HFGWTR_EL2, VBAR_EL1, 38, 1) +FIELD(HFGWTR_EL2, ICC_IGRPENN_EL1, 39, 1) +FIELD(HFGWTR_EL2, ERRSELR_EL1, 41, 1) +FIELD(HFGWTR_EL2, ERXCTLR_EL1, 43, 1) +FIELD(HFGWTR_EL2, ERXSTATUS_EL1, 44, 1) +FIELD(HFGWTR_EL2, ERXMISCN_EL1, 45, 1) +FIELD(HFGWTR_EL2, ERXPFGCTL_EL1, 47, 1) +FIELD(HFGWTR_EL2, ERXPFGCDN_EL1, 48, 1) +FIELD(HFGWTR_EL2, ERXADDR_EL1, 49, 1) +FIELD(HFGWTR_EL2, NACCDATA_EL1, 50, 1) +FIELD(HFGWTR_EL2, NSMPRI_EL1, 54, 1) +FIELD(HFGWTR_EL2, NTPIDR2_EL0, 55, 1) + +FIELD(HFGITR_EL2, ICIALLUIS, 0, 1) +FIELD(HFGITR_EL2, ICIALLU, 1, 1) +FIELD(HFGITR_EL2, ICIVAU, 2, 1) +FIELD(HFGITR_EL2, DCIVAC, 3, 1) +FIELD(HFGITR_EL2, DCISW, 4, 1) +FIELD(HFGITR_EL2, DCCSW, 5, 1) +FIELD(HFGITR_EL2, DCCISW, 6, 1) +FIELD(HFGITR_EL2, DCCVAU, 7, 1) +FIELD(HFGITR_EL2, DCCVAP, 8, 1) +FIELD(HFGITR_EL2, DCCVADP, 9, 1) +FIELD(HFGITR_EL2, DCCIVAC, 10, 1) +FIELD(HFGITR_EL2, DCZVA, 11, 1) +FIELD(HFGITR_EL2, ATS1E1R, 12, 1) +FIELD(HFGITR_EL2, ATS1E1W, 13, 1) +FIELD(HFGITR_EL2, ATS1E0R, 14, 1) +FIELD(HFGITR_EL2, ATS1E0W, 15, 1) +FIELD(HFGITR_EL2, ATS1E1RP, 16, 1) +FIELD(HFGITR_EL2, ATS1E1WP, 17, 1) +FIELD(HFGITR_EL2, TLBIVMALLE1OS, 18, 1) +FIELD(HFGITR_EL2, TLBIVAE1OS, 19, 1) +FIELD(HFGITR_EL2, TLBIASIDE1OS, 20, 1) +FIELD(HFGITR_EL2, TLBIVAAE1OS, 21, 1) +FIELD(HFGITR_EL2, TLBIVALE1OS, 22, 1) +FIELD(HFGITR_EL2, TLBIVAALE1OS, 23, 1) +FIELD(HFGITR_EL2, TLBIRVAE1OS, 24, 1) +FIELD(HFGITR_EL2, TLBIRVAAE1OS, 25, 1) +FIELD(HFGITR_EL2, TLBIRVALE1OS, 26, 1) +FIELD(HFGITR_EL2, TLBIRVAALE1OS, 27, 1) +FIELD(HFGITR_EL2, TLBIVMALLE1IS, 28, 1) +FIELD(HFGITR_EL2, TLBIVAE1IS, 29, 1) +FIELD(HFGITR_EL2, TLBIASIDE1IS, 30, 1) +FIELD(HFGITR_EL2, TLBIVAAE1IS, 31, 1) +FIELD(HFGITR_EL2, TLBIVALE1IS, 32, 1) +FIELD(HFGITR_EL2, TLBIVAALE1IS, 33, 1) +FIELD(HFGITR_EL2, TLBIRVAE1IS, 34, 1) +FIELD(HFGITR_EL2, TLBIRVAAE1IS, 35, 1) +FIELD(HFGITR_EL2, TLBIRVALE1IS, 36, 1) +FIELD(HFGITR_EL2, TLBIRVAALE1IS, 37, 1) +FIELD(HFGITR_EL2, TLBIRVAE1, 38, 1) +FIELD(HFGITR_EL2, TLBIRVAAE1, 39, 1) +FIELD(HFGITR_EL2, TLBIRVALE1, 40, 1) +FIELD(HFGITR_EL2, TLBIRVAALE1, 41, 1) +FIELD(HFGITR_EL2, TLBIVMALLE1, 42, 1) +FIELD(HFGITR_EL2, TLBIVAE1, 43, 1) +FIELD(HFGITR_EL2, TLBIASIDE1, 44, 1) +FIELD(HFGITR_EL2, TLBIVAAE1, 45, 1) +FIELD(HFGITR_EL2, TLBIVALE1, 46, 1) +FIELD(HFGITR_EL2, TLBIVAALE1, 47, 1) +FIELD(HFGITR_EL2, CFPRCTX, 48, 1) +FIELD(HFGITR_EL2, DVPRCTX, 49, 1) +FIELD(HFGITR_EL2, CPPRCTX, 50, 1) +FIELD(HFGITR_EL2, ERET, 51, 1) +FIELD(HFGITR_EL2, SVC_EL0, 52, 1) +FIELD(HFGITR_EL2, SVC_EL1, 53, 1) +FIELD(HFGITR_EL2, DCCVAC, 54, 1) +FIELD(HFGITR_EL2, NBRBINJ, 55, 1) +FIELD(HFGITR_EL2, NBRBIALL, 56, 1) + +FIELD(HDFGRTR_EL2, DBGBCRN_EL1, 0, 1) +FIELD(HDFGRTR_EL2, DBGBVRN_EL1, 1, 1) +FIELD(HDFGRTR_EL2, DBGWCRN_EL1, 2, 1) +FIELD(HDFGRTR_EL2, DBGWVRN_EL1, 3, 1) +FIELD(HDFGRTR_EL2, MDSCR_EL1, 4, 1) +FIELD(HDFGRTR_EL2, DBGCLAIM, 5, 1) +FIELD(HDFGRTR_EL2, DBGAUTHSTATUS_EL1, 6, 1) +FIELD(HDFGRTR_EL2, DBGPRCR_EL1, 7, 1) +/* 8: RES0: OSLAR_EL1 is WO */ +FIELD(HDFGRTR_EL2, OSLSR_EL1, 9, 1) +FIELD(HDFGRTR_EL2, OSECCR_EL1, 10, 1) +FIELD(HDFGRTR_EL2, OSDLR_EL1, 11, 1) +FIELD(HDFGRTR_EL2, PMEVCNTRN_EL0, 12, 1) +FIELD(HDFGRTR_EL2, PMEVTYPERN_EL0, 13, 1) +FIELD(HDFGRTR_EL2, PMCCFILTR_EL0, 14, 1) +FIELD(HDFGRTR_EL2, PMCCNTR_EL0, 15, 1) +FIELD(HDFGRTR_EL2, PMCNTEN, 16, 1) +FIELD(HDFGRTR_EL2, PMINTEN, 17, 1) +FIELD(HDFGRTR_EL2, PMOVS, 18, 1) +FIELD(HDFGRTR_EL2, PMSELR_EL0, 19, 1) +/* 20: RES0: PMSWINC_EL0 is WO */ +/* 21: RES0: PMCR_EL0 is WO */ +FIELD(HDFGRTR_EL2, PMMIR_EL1, 22, 1) +FIELD(HDFGRTR_EL2, PMBLIMITR_EL1, 23, 1) +FIELD(HDFGRTR_EL2, PMBPTR_EL1, 24, 1) +FIELD(HDFGRTR_EL2, PMBSR_EL1, 25, 1) +FIELD(HDFGRTR_EL2, PMSCR_EL1, 26, 1) +FIELD(HDFGRTR_EL2, PMSEVFR_EL1, 27, 1) +FIELD(HDFGRTR_EL2, PMSFCR_EL1, 28, 1) +FIELD(HDFGRTR_EL2, PMSICR_EL1, 29, 1) +FIELD(HDFGRTR_EL2, PMSIDR_EL1, 30, 1) +FIELD(HDFGRTR_EL2, PMSIRR_EL1, 31, 1) +FIELD(HDFGRTR_EL2, PMSLATFR_EL1, 32, 1) +FIELD(HDFGRTR_EL2, TRC, 33, 1) +FIELD(HDFGRTR_EL2, TRCAUTHSTATUS, 34, 1) +FIELD(HDFGRTR_EL2, TRCAUXCTLR, 35, 1) +FIELD(HDFGRTR_EL2, TRCCLAIM, 36, 1) +FIELD(HDFGRTR_EL2, TRCCNTVRn, 37, 1) +/* 38, 39: RES0 */ +FIELD(HDFGRTR_EL2, TRCID, 40, 1) +FIELD(HDFGRTR_EL2, TRCIMSPECN, 41, 1) +/* 42: RES0: TRCOSLAR is WO */ +FIELD(HDFGRTR_EL2, TRCOSLSR, 43, 1) +FIELD(HDFGRTR_EL2, TRCPRGCTLR, 44, 1) +FIELD(HDFGRTR_EL2, TRCSEQSTR, 45, 1) +FIELD(HDFGRTR_EL2, TRCSSCSRN, 46, 1) +FIELD(HDFGRTR_EL2, TRCSTATR, 47, 1) +FIELD(HDFGRTR_EL2, TRCVICTLR, 48, 1) +/* 49: RES0: TRFCR_EL1 is WO */ +FIELD(HDFGRTR_EL2, TRBBASER_EL1, 50, 1) +FIELD(HDFGRTR_EL2, TRBIDR_EL1, 51, 1) +FIELD(HDFGRTR_EL2, TRBLIMITR_EL1, 52, 1) +FIELD(HDFGRTR_EL2, TRBMAR_EL1, 53, 1) +FIELD(HDFGRTR_EL2, TRBPTR_EL1, 54, 1) +FIELD(HDFGRTR_EL2, TRBSR_EL1, 55, 1) +FIELD(HDFGRTR_EL2, TRBTRG_EL1, 56, 1) +FIELD(HDFGRTR_EL2, PMUSERENR_EL0, 57, 1) +FIELD(HDFGRTR_EL2, PMCEIDN_EL0, 58, 1) +FIELD(HDFGRTR_EL2, NBRBIDR, 59, 1) +FIELD(HDFGRTR_EL2, NBRBCTL, 60, 1) +FIELD(HDFGRTR_EL2, NBRBDATA, 61, 1) +FIELD(HDFGRTR_EL2, NPMSNEVFR_EL1, 62, 1) +FIELD(HDFGRTR_EL2, PMBIDR_EL1, 63, 1) + +/* + * These match HDFGRTR_EL2, but bits for RO registers are RES0. + * A few bits are for WO registers, where the HDFGRTR_EL2 bit is RES0. + */ +FIELD(HDFGWTR_EL2, DBGBCRN_EL1, 0, 1) +FIELD(HDFGWTR_EL2, DBGBVRN_EL1, 1, 1) +FIELD(HDFGWTR_EL2, DBGWCRN_EL1, 2, 1) +FIELD(HDFGWTR_EL2, DBGWVRN_EL1, 3, 1) +FIELD(HDFGWTR_EL2, MDSCR_EL1, 4, 1) +FIELD(HDFGWTR_EL2, DBGCLAIM, 5, 1) +FIELD(HDFGWTR_EL2, DBGPRCR_EL1, 7, 1) +FIELD(HDFGWTR_EL2, OSLAR_EL1, 8, 1) +FIELD(HDFGWTR_EL2, OSLSR_EL1, 9, 1) +FIELD(HDFGWTR_EL2, OSECCR_EL1, 10, 1) +FIELD(HDFGWTR_EL2, OSDLR_EL1, 11, 1) +FIELD(HDFGWTR_EL2, PMEVCNTRN_EL0, 12, 1) +FIELD(HDFGWTR_EL2, PMEVTYPERN_EL0, 13, 1) +FIELD(HDFGWTR_EL2, PMCCFILTR_EL0, 14, 1) +FIELD(HDFGWTR_EL2, PMCCNTR_EL0, 15, 1) +FIELD(HDFGWTR_EL2, PMCNTEN, 16, 1) +FIELD(HDFGWTR_EL2, PMINTEN, 17, 1) +FIELD(HDFGWTR_EL2, PMOVS, 18, 1) +FIELD(HDFGWTR_EL2, PMSELR_EL0, 19, 1) +FIELD(HDFGWTR_EL2, PMSWINC_EL0, 20, 1) +FIELD(HDFGWTR_EL2, PMCR_EL0, 21, 1) +FIELD(HDFGWTR_EL2, PMBLIMITR_EL1, 23, 1) +FIELD(HDFGWTR_EL2, PMBPTR_EL1, 24, 1) +FIELD(HDFGWTR_EL2, PMBSR_EL1, 25, 1) +FIELD(HDFGWTR_EL2, PMSCR_EL1, 26, 1) +FIELD(HDFGWTR_EL2, PMSEVFR_EL1, 27, 1) +FIELD(HDFGWTR_EL2, PMSFCR_EL1, 28, 1) +FIELD(HDFGWTR_EL2, PMSICR_EL1, 29, 1) +FIELD(HDFGWTR_EL2, PMSIRR_EL1, 31, 1) +FIELD(HDFGWTR_EL2, PMSLATFR_EL1, 32, 1) +FIELD(HDFGWTR_EL2, TRC, 33, 1) +FIELD(HDFGWTR_EL2, TRCAUXCTLR, 35, 1) +FIELD(HDFGWTR_EL2, TRCCLAIM, 36, 1) +FIELD(HDFGWTR_EL2, TRCCNTVRn, 37, 1) +FIELD(HDFGWTR_EL2, TRCIMSPECN, 41, 1) +FIELD(HDFGWTR_EL2, TRCOSLAR, 42, 1) +FIELD(HDFGWTR_EL2, TRCPRGCTLR, 44, 1) +FIELD(HDFGWTR_EL2, TRCSEQSTR, 45, 1) +FIELD(HDFGWTR_EL2, TRCSSCSRN, 46, 1) +FIELD(HDFGWTR_EL2, TRCVICTLR, 48, 1) +FIELD(HDFGWTR_EL2, TRFCR_EL1, 49, 1) +FIELD(HDFGWTR_EL2, TRBBASER_EL1, 50, 1) +FIELD(HDFGWTR_EL2, TRBLIMITR_EL1, 52, 1) +FIELD(HDFGWTR_EL2, TRBMAR_EL1, 53, 1) +FIELD(HDFGWTR_EL2, TRBPTR_EL1, 54, 1) +FIELD(HDFGWTR_EL2, TRBSR_EL1, 55, 1) +FIELD(HDFGWTR_EL2, TRBTRG_EL1, 56, 1) +FIELD(HDFGWTR_EL2, PMUSERENR_EL0, 57, 1) +FIELD(HDFGWTR_EL2, NBRBCTL, 60, 1) +FIELD(HDFGWTR_EL2, NBRBDATA, 61, 1) +FIELD(HDFGWTR_EL2, NPMSNEVFR_EL1, 62, 1) + typedef struct ARMCPRegInfo ARMCPRegInfo; /* diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ typedef struct CPUArchState { uint64_t disr_el1; uint64_t vdisr_el2; uint64_t vsesr_el2; + + /* + * Fine-Grained Trap registers. We store these as arrays so the + * access checking code doesn't have to manually select + * HFGRTR_EL2 vs HFDFGRTR_EL2 etc when looking up the bit to test. + * FEAT_FGT2 will add more elements to these arrays. + */ + uint64_t fgt_read[2]; /* HFGRTR, HDFGRTR */ + uint64_t fgt_write[2]; /* HFGWTR, HDFGWTR */ + uint64_t fgt_exec[1]; /* HFGITR */ } cp15; struct { @@ -XXX,XX +XXX,XX @@ static inline bool isar_feature_aa64_tgran64_2(const ARMISARegisters *id) return t >= 2 || (t == 0 && isar_feature_aa64_tgran64(id)); } +static inline bool isar_feature_aa64_fgt(const ARMISARegisters *id) +{ + return FIELD_EX64(id->id_aa64mmfr0, ID_AA64MMFR0, FGT) != 0; +} + static inline bool isar_feature_aa64_ccidx(const ARMISARegisters *id) { return FIELD_EX64(id->id_aa64mmfr2, ID_AA64MMFR2, CCIDX) != 0; diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) if (cpu_isar_feature(aa64_hcx, cpu)) { valid_mask |= SCR_HXEN; } + if (cpu_isar_feature(aa64_fgt, cpu)) { + valid_mask |= SCR_FGTEN; + } } else { valid_mask &= ~(SCR_RW | SCR_ST); if (cpu_isar_feature(aa32_ras, cpu)) { @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo scxtnum_reginfo[] = { .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, scxtnum_el[3]) }, }; + +static CPAccessResult access_fgt(CPUARMState *env, const ARMCPRegInfo *ri, + bool isread) +{ + if (arm_current_el(env) == 2 && + arm_feature(env, ARM_FEATURE_EL3) && !(env->cp15.scr_el3 & SCR_FGTEN)) { + return CP_ACCESS_TRAP_EL3; + } + return CP_ACCESS_OK; +} + +static const ARMCPRegInfo fgt_reginfo[] = { + { .name = "HFGRTR_EL2", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 4, + .access = PL2_RW, .accessfn = access_fgt, + .fieldoffset = offsetof(CPUARMState, cp15.fgt_read[FGTREG_HFGRTR]) }, + { .name = "HFGWTR_EL2", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 5, + .access = PL2_RW, .accessfn = access_fgt, + .fieldoffset = offsetof(CPUARMState, cp15.fgt_write[FGTREG_HFGWTR]) }, + { .name = "HDFGRTR_EL2", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 4, .crn = 3, .crm = 1, .opc2 = 4, + .access = PL2_RW, .accessfn = access_fgt, + .fieldoffset = offsetof(CPUARMState, cp15.fgt_read[FGTREG_HDFGRTR]) }, + { .name = "HDFGWTR_EL2", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 4, .crn = 3, .crm = 1, .opc2 = 5, + .access = PL2_RW, .accessfn = access_fgt, + .fieldoffset = offsetof(CPUARMState, cp15.fgt_write[FGTREG_HDFGWTR]) }, + { .name = "HFGITR_EL2", .state = ARM_CP_STATE_AA64, + .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 6, + .access = PL2_RW, .accessfn = access_fgt, + .fieldoffset = offsetof(CPUARMState, cp15.fgt_exec[FGTREG_HFGITR]) }, +}; #endif /* TARGET_AARCH64 */ static CPAccessResult access_predinv(CPUARMState *env, const ARMCPRegInfo *ri, @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) if (cpu_isar_feature(aa64_scxtnum, cpu)) { define_arm_cp_regs(cpu, scxtnum_reginfo); } + + if (cpu_isar_feature(aa64_fgt, cpu)) { + define_arm_cp_regs(cpu, fgt_reginfo); + } #endif if (cpu_isar_feature(any_predinv, cpu)) { -- 2.34.1 Implement the machinery for fine-grained traps on normal sysregs. Any sysreg with a fine-grained trap will set the new field to indicate which FGT register bit it should trap on. FGT traps only happen when an AArch64 EL2 enables them for an AArch64 EL1. They therefore are only relevant for AArch32 cpregs when the cpreg can be accessed from EL0. The logic in access_check_cp_reg() will check this, so it is safe to add a .fgt marking to an ARM_CP_STATE_BOTH ARMCPRegInfo. The DO_BIT and DO_REV_BIT macros define enum constants FGT_##bitname which can be used to specify the FGT bit, eg .fgt = FGT_AFSR0_EL1 (We assume that there is no bit name duplication across the FGT registers, for brevity's sake.) Subsequent commits will add the .fgt fields to the relevant register definitions and define the FGT_nnn values for them. Note that some of the FGT traps are for instructions that we don't handle via the cpregs mechanisms (mostly these are instruction traps). Those we will have to handle separately. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-10-peter.maydell@linaro.org Message-id: 20230127175507.2895013-10-peter.maydell@linaro.org --- target/arm/cpregs.h | 72 ++++++++++++++++++++++++++++++++++++++ target/arm/cpu.h | 1 + target/arm/internals.h | 20 +++++++++++ target/arm/translate.h | 2 ++ target/arm/helper.c | 9 +++++ target/arm/op_helper.c | 30 ++++++++++++++++ target/arm/translate-a64.c | 3 +- target/arm/translate.c | 2 ++ 8 files changed, 138 insertions(+), 1 deletion(-) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ FIELD(HDFGWTR_EL2, NBRBCTL, 60, 1) FIELD(HDFGWTR_EL2, NBRBDATA, 61, 1) FIELD(HDFGWTR_EL2, NPMSNEVFR_EL1, 62, 1) +/* Which fine-grained trap bit register to check, if any */ +FIELD(FGT, TYPE, 10, 3) +FIELD(FGT, REV, 9, 1) /* Is bit sense reversed? */ +FIELD(FGT, IDX, 6, 3) /* Index within a uint64_t[] array */ +FIELD(FGT, BITPOS, 0, 6) /* Bit position within the uint64_t */ + +/* + * Macros to define FGT_##bitname enum constants to use in ARMCPRegInfo::fgt + * fields. We assume for brevity's sake that there are no duplicated + * bit names across the various FGT registers. + */ +#define DO_BIT(REG, BITNAME) \ + FGT_##BITNAME = FGT_##REG | R_##REG##_EL2_##BITNAME##_SHIFT + +/* Some bits have reversed sense, so 0 means trap and 1 means not */ +#define DO_REV_BIT(REG, BITNAME) \ + FGT_##BITNAME = FGT_##REG | FGT_REV | R_##REG##_EL2_##BITNAME##_SHIFT + +typedef enum FGTBit { + /* + * These bits tell us which register arrays to use: + * if FGT_R is set then reads are checked against fgt_read[]; + * if FGT_W is set then writes are checked against fgt_write[]; + * if FGT_EXEC is set then all accesses are checked against fgt_exec[]. + * + * For almost all bits in the R/W register pairs, the bit exists in + * both registers for a RW register, in HFGRTR/HDFGRTR for a RO register + * with the corresponding HFGWTR/HDFGTWTR bit being RES0, and vice-versa + * for a WO register. There are unfortunately a couple of exceptions + * (PMCR_EL0, TRFCR_EL1) where the register being trapped is RW but + * the FGT system only allows trapping of writes, not reads. + * + * Note that we arrange these bits so that a 0 FGTBit means "no trap". + */ + FGT_R = 1 << R_FGT_TYPE_SHIFT, + FGT_W = 2 << R_FGT_TYPE_SHIFT, + FGT_EXEC = 4 << R_FGT_TYPE_SHIFT, + FGT_RW = FGT_R | FGT_W, + /* Bit to identify whether trap bit is reversed sense */ + FGT_REV = R_FGT_REV_MASK, + + /* + * If a bit exists in HFGRTR/HDFGRTR then either the register being + * trapped is RO or the bit also exists in HFGWTR/HDFGWTR, so we either + * want to trap for both reads and writes or else it's harmless to mark + * it as trap-on-writes. + * If a bit exists only in HFGWTR/HDFGWTR then either the register being + * trapped is WO, or else it is one of the two oddball special cases + * which are RW but have only a write trap. We mark these as only + * FGT_W so we get the right behaviour for those special cases. + * (If a bit was added in future that provided only a read trap for an + * RW register we'd need to do something special to get the FGT_R bit + * only. But this seems unlikely to happen.) + * + * So for the DO_BIT/DO_REV_BIT macros: use FGT_HFGRTR/FGT_HDFGRTR if + * the bit exists in that register. Otherwise use FGT_HFGWTR/FGT_HDFGWTR. + */ + FGT_HFGRTR = FGT_RW | (FGTREG_HFGRTR << R_FGT_IDX_SHIFT), + FGT_HFGWTR = FGT_W | (FGTREG_HFGWTR << R_FGT_IDX_SHIFT), + FGT_HDFGRTR = FGT_RW | (FGTREG_HDFGRTR << R_FGT_IDX_SHIFT), + FGT_HDFGWTR = FGT_W | (FGTREG_HDFGWTR << R_FGT_IDX_SHIFT), + FGT_HFGITR = FGT_EXEC | (FGTREG_HFGITR << R_FGT_IDX_SHIFT), +} FGTBit; + +#undef DO_BIT +#undef DO_REV_BIT + typedef struct ARMCPRegInfo ARMCPRegInfo; /* @@ -XXX,XX +XXX,XX @@ struct ARMCPRegInfo { CPAccessRights access; /* Security state: ARM_CP_SECSTATE_* bits/values */ CPSecureState secure; + /* + * Which fine-grained trap register bit to check, if any. This + * value encodes both the trap register and bit within it. + */ + FGTBit fgt; /* * The opaque pointer passed to define_arm_cp_regs_with_opaque() when * this register was defined: can be used to hand data through to the diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ FIELD(TBFLAG_ANY, FPEXC_EL, 8, 2) /* Memory operations require alignment: SCTLR_ELx.A or CCR.UNALIGN_TRP */ FIELD(TBFLAG_ANY, ALIGN_MEM, 10, 1) FIELD(TBFLAG_ANY, PSTATE__IL, 11, 1) +FIELD(TBFLAG_ANY, FGT_ACTIVE, 12, 1) /* * Bit usage when in AArch32 state, both A- and M-profile. diff --git a/target/arm/internals.h b/target/arm/internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/internals.h +++ b/target/arm/internals.h @@ -XXX,XX +XXX,XX @@ static inline uint64_t arm_mdcr_el2_eff(CPUARMState *env) ((1 << (1 - 1)) | (1 << (2 - 1)) | \ (1 << (4 - 1)) | (1 << (8 - 1)) | (1 << (16 - 1))) +/* + * Return true if it is possible to take a fine-grained-trap to EL2. + */ +static inline bool arm_fgt_active(CPUARMState *env, int el) +{ + /* + * The Arm ARM only requires the "{E2H,TGE} != {1,1}" test for traps + * that can affect EL0, but it is harmless to do the test also for + * traps on registers that are only accessible at EL1 because if the test + * returns true then we can't be executing at EL1 anyway. + * FGT traps only happen when EL2 is enabled and EL1 is AArch64; + * traps from AArch32 only happen for the EL0 is AArch32 case. + */ + return cpu_isar_feature(aa64_fgt, env_archcpu(env)) && + el < 2 && arm_is_el2_enabled(env) && + arm_el_is_aa64(env, 1) && + (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE) && + (!arm_feature(env, ARM_FEATURE_EL3) || (env->cp15.scr_el3 & SCR_FGTEN)); +} + #endif diff --git a/target/arm/translate.h b/target/arm/translate.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.h +++ b/target/arm/translate.h @@ -XXX,XX +XXX,XX @@ typedef struct DisasContext { bool is_nonstreaming; /* True if MVE insns are definitely not predicated by VPR or LTPSIZE */ bool mve_no_pred; + /* True if fine-grained traps are active */ + bool fgt_active; /* * >= 0, a copy of PSTATE.BTYPE, which will be 0 without v8.5-BTI. * < 0, set by the current instruction. diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static CPUARMTBFlags rebuild_hflags_common(CPUARMState *env, int fp_el, if (arm_singlestep_active(env)) { DP_TBFLAG_ANY(flags, SS_ACTIVE, 1); } + return flags; } @@ -XXX,XX +XXX,XX @@ static CPUARMTBFlags rebuild_hflags_a32(CPUARMState *env, int fp_el, DP_TBFLAG_A32(flags, HSTR_ACTIVE, 1); } + if (arm_fgt_active(env, el)) { + DP_TBFLAG_ANY(flags, FGT_ACTIVE, 1); + } + if (env->uncached_cpsr & CPSR_IL) { DP_TBFLAG_ANY(flags, PSTATE__IL, 1); } @@ -XXX,XX +XXX,XX @@ static CPUARMTBFlags rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, DP_TBFLAG_ANY(flags, PSTATE__IL, 1); } + if (arm_fgt_active(env, el)) { + DP_TBFLAG_ANY(flags, FGT_ACTIVE, 1); + } + if (cpu_isar_feature(aa64_mte, env_archcpu(env))) { /* * Set MTE_ACTIVE if any access may be Checked, and leave clear diff --git a/target/arm/op_helper.c b/target/arm/op_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/op_helper.c +++ b/target/arm/op_helper.c @@ -XXX,XX +XXX,XX @@ const void *HELPER(access_check_cp_reg)(CPUARMState *env, uint32_t key, } } + /* + * Fine-grained traps also are lower priority than undef-to-EL1, + * higher priority than trap-to-EL3, and we don't care about priority + * order with other EL2 traps because the syndrome value is the same. + */ + if (arm_fgt_active(env, arm_current_el(env))) { + uint64_t trapword = 0; + unsigned int idx = FIELD_EX32(ri->fgt, FGT, IDX); + unsigned int bitpos = FIELD_EX32(ri->fgt, FGT, BITPOS); + bool rev = FIELD_EX32(ri->fgt, FGT, REV); + bool trapbit; + + if (ri->fgt & FGT_EXEC) { + assert(idx < ARRAY_SIZE(env->cp15.fgt_exec)); + trapword = env->cp15.fgt_exec[idx]; + } else if (isread && (ri->fgt & FGT_R)) { + assert(idx < ARRAY_SIZE(env->cp15.fgt_read)); + trapword = env->cp15.fgt_read[idx]; + } else if (!isread && (ri->fgt & FGT_W)) { + assert(idx < ARRAY_SIZE(env->cp15.fgt_write)); + trapword = env->cp15.fgt_write[idx]; + } + + trapbit = extract64(trapword, bitpos, 1); + if (trapbit != rev) { + res = CP_ACCESS_TRAP_EL2; + goto fail; + } + } + if (likely(res == CP_ACCESS_OK)) { return ri; } diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -XXX,XX +XXX,XX @@ static void handle_sys(DisasContext *s, uint32_t insn, bool isread, return; } - if (ri->accessfn) { + if (ri->accessfn || (ri->fgt && s->fgt_active)) { /* Emit code to perform further access permissions checks at * runtime; this may result in an exception. */ @@ -XXX,XX +XXX,XX @@ static void aarch64_tr_init_disas_context(DisasContextBase *dcbase, dc->fp_excp_el = EX_TBFLAG_ANY(tb_flags, FPEXC_EL); dc->align_mem = EX_TBFLAG_ANY(tb_flags, ALIGN_MEM); dc->pstate_il = EX_TBFLAG_ANY(tb_flags, PSTATE__IL); + dc->fgt_active = EX_TBFLAG_ANY(tb_flags, FGT_ACTIVE); dc->sve_excp_el = EX_TBFLAG_A64(tb_flags, SVEEXC_EL); dc->sme_excp_el = EX_TBFLAG_A64(tb_flags, SMEEXC_EL); dc->vl = (EX_TBFLAG_A64(tb_flags, VL) + 1) * 16; diff --git a/target/arm/translate.c b/target/arm/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -XXX,XX +XXX,XX @@ static void do_coproc_insn(DisasContext *s, int cpnum, int is64, } if ((s->hstr_active && s->current_el == 0) || ri->accessfn || + (ri->fgt && s->fgt_active) || (arm_dc_feature(s, ARM_FEATURE_XSCALE) && cpnum < 14)) { /* * Emit code to perform further access permissions checks at @@ -XXX,XX +XXX,XX @@ static void arm_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) dc->fp_excp_el = EX_TBFLAG_ANY(tb_flags, FPEXC_EL); dc->align_mem = EX_TBFLAG_ANY(tb_flags, ALIGN_MEM); dc->pstate_il = EX_TBFLAG_ANY(tb_flags, PSTATE__IL); + dc->fgt_active = EX_TBFLAG_ANY(tb_flags, FGT_ACTIVE); if (arm_feature(env, ARM_FEATURE_M)) { dc->vfp_enabled = 1; -- 2.34.1 Mark up the sysreg definitions for the registers trapped by HFGRTR/HFGWTR bits 0..11. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-11-peter.maydell@linaro.org Message-id: 20230127175507.2895013-11-peter.maydell@linaro.org --- target/arm/cpregs.h | 14 ++++++++++++++ target/arm/helper.c | 17 +++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { FGT_HDFGRTR = FGT_RW | (FGTREG_HDFGRTR << R_FGT_IDX_SHIFT), FGT_HDFGWTR = FGT_W | (FGTREG_HDFGWTR << R_FGT_IDX_SHIFT), FGT_HFGITR = FGT_EXEC | (FGTREG_HFGITR << R_FGT_IDX_SHIFT), + + /* Trap bits in HFGRTR_EL2 / HFGWTR_EL2, starting from bit 0. */ + DO_BIT(HFGRTR, AFSR0_EL1), + DO_BIT(HFGRTR, AFSR1_EL1), + DO_BIT(HFGRTR, AIDR_EL1), + DO_BIT(HFGRTR, AMAIR_EL1), + DO_BIT(HFGRTR, APDAKEY), + DO_BIT(HFGRTR, APDBKEY), + DO_BIT(HFGRTR, APGAKEY), + DO_BIT(HFGRTR, APIAKEY), + DO_BIT(HFGRTR, APIBKEY), + DO_BIT(HFGRTR, CCSIDR_EL1), + DO_BIT(HFGRTR, CLIDR_EL1), + DO_BIT(HFGRTR, CONTEXTIDR_EL1), } FGTBit; #undef DO_BIT diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo cp_reginfo[] = { { .name = "CONTEXTIDR_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 1, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_CONTEXTIDR_EL1, .secure = ARM_CP_SECSTATE_NS, .fieldoffset = offsetof(CPUARMState, cp15.contextidr_el[1]), .resetvalue = 0, .writefn = contextidr_write, .raw_writefn = raw_write, }, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 1, .opc2 = 0, .access = PL1_R, .accessfn = access_tid4, + .fgt = FGT_CCSIDR_EL1, .readfn = ccsidr_read, .type = ARM_CP_NO_RAW }, { .name = "CSSELR", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 2, .opc2 = 0, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { .opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 7, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa64_tid1, + .fgt = FGT_AIDR_EL1, .resetvalue = 0 }, /* * Auxiliary fault status registers: these also are IMPDEF, and we @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { { .name = "AFSR0_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 1, .opc2 = 0, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_AFSR0_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, { .name = "AFSR1_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 1, .opc2 = 1, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_AFSR1_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, /* * MAIR can just read-as-written because we don't implement caches @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo lpae_cp_reginfo[] = { { .name = "AMAIR0", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .crn = 10, .crm = 3, .opc1 = 0, .opc2 = 0, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_AMAIR_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, /* AMAIR1 is mapped to AMAIR_EL1[63:32] */ { .name = "AMAIR1", .cp = 15, .crn = 10, .crm = 3, .opc1 = 0, .opc2 = 1, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo pauth_reginfo[] = { { .name = "APDAKEYLO_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 0, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APDAKEY, .fieldoffset = offsetof(CPUARMState, keys.apda.lo) }, { .name = "APDAKEYHI_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 1, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APDAKEY, .fieldoffset = offsetof(CPUARMState, keys.apda.hi) }, { .name = "APDBKEYLO_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 2, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APDBKEY, .fieldoffset = offsetof(CPUARMState, keys.apdb.lo) }, { .name = "APDBKEYHI_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 3, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APDBKEY, .fieldoffset = offsetof(CPUARMState, keys.apdb.hi) }, { .name = "APGAKEYLO_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 3, .opc2 = 0, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APGAKEY, .fieldoffset = offsetof(CPUARMState, keys.apga.lo) }, { .name = "APGAKEYHI_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 3, .opc2 = 1, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APGAKEY, .fieldoffset = offsetof(CPUARMState, keys.apga.hi) }, { .name = "APIAKEYLO_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 0, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APIAKEY, .fieldoffset = offsetof(CPUARMState, keys.apia.lo) }, { .name = "APIAKEYHI_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 1, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APIAKEY, .fieldoffset = offsetof(CPUARMState, keys.apia.hi) }, { .name = "APIBKEYLO_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 2, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APIBKEY, .fieldoffset = offsetof(CPUARMState, keys.apib.lo) }, { .name = "APIBKEYHI_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 3, .access = PL1_RW, .accessfn = access_pauth, + .fgt = FGT_APIBKEY, .fieldoffset = offsetof(CPUARMState, keys.apib.hi) }, }; @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 1, .opc2 = 1, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_tid4, + .fgt = FGT_CLIDR_EL1, .resetvalue = cpu->clidr }; define_one_arm_cp_reg(cpu, &clidr); -- 2.34.1 Mark up the sysreg definitions for the registers trapped by HFGRTR/HFGWTR bits 12..23. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-12-peter.maydell@linaro.org Message-id: 20230127175507.2895013-12-peter.maydell@linaro.org --- target/arm/cpregs.h | 12 ++++++++++++ target/arm/helper.c | 12 ++++++++++++ 2 files changed, 24 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { DO_BIT(HFGRTR, CCSIDR_EL1), DO_BIT(HFGRTR, CLIDR_EL1), DO_BIT(HFGRTR, CONTEXTIDR_EL1), + DO_BIT(HFGRTR, CPACR_EL1), + DO_BIT(HFGRTR, CSSELR_EL1), + DO_BIT(HFGRTR, CTR_EL0), + DO_BIT(HFGRTR, DCZID_EL0), + DO_BIT(HFGRTR, ESR_EL1), + DO_BIT(HFGRTR, FAR_EL1), + DO_BIT(HFGRTR, ISR_EL1), + DO_BIT(HFGRTR, LORC_EL1), + DO_BIT(HFGRTR, LOREA_EL1), + DO_BIT(HFGRTR, LORID_EL1), + DO_BIT(HFGRTR, LORN_EL1), + DO_BIT(HFGRTR, LORSA_EL1), } FGTBit; #undef DO_BIT diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v6_cp_reginfo[] = { .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0, }, { .name = "CPACR", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .crn = 1, .crm = 0, .opc1 = 0, .opc2 = 2, .accessfn = cpacr_access, + .fgt = FGT_CPACR_EL1, .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.cpacr_el1), .resetfn = cpacr_reset, .writefn = cpacr_write, .readfn = cpacr_read }, }; @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 2, .opc2 = 0, .access = PL1_RW, .accessfn = access_tid4, + .fgt = FGT_CSSELR_EL1, .writefn = csselr_write, .resetvalue = 0, .bank_fieldoffsets = { offsetof(CPUARMState, cp15.csselr_s), offsetof(CPUARMState, cp15.csselr_ns) } }, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { .resetfn = arm_cp_reset_ignore }, { .name = "ISR_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 1, .opc2 = 0, + .fgt = FGT_ISR_EL1, .type = ARM_CP_NO_RAW, .access = PL1_R, .readfn = isr_read }, /* 32 bit ITLB invalidates */ { .name = "ITLBIALL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 0, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo vmsa_pmsa_cp_reginfo[] = { { .name = "FAR_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 0, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_FAR_EL1, .fieldoffset = offsetof(CPUARMState, cp15.far_el[1]), .resetvalue = 0, }, }; @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo vmsa_cp_reginfo[] = { { .name = "ESR_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .crn = 5, .crm = 2, .opc1 = 0, .opc2 = 0, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_ESR_EL1, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[1]), .resetvalue = 0, }, { .name = "TTBR0_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 0, .opc2 = 0, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = { { .name = "DCZID_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .opc2 = 7, .crn = 0, .crm = 0, .access = PL0_R, .type = ARM_CP_NO_RAW, + .fgt = FGT_DCZID_EL0, .readfn = aa64_dczid_read }, { .name = "DC_ZVA", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 4, .opc2 = 1, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo lor_reginfo[] = { { .name = "LORSA_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 0, .access = PL1_RW, .accessfn = access_lor_other, + .fgt = FGT_LORSA_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, { .name = "LOREA_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 1, .access = PL1_RW, .accessfn = access_lor_other, + .fgt = FGT_LOREA_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, { .name = "LORN_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 2, .access = PL1_RW, .accessfn = access_lor_other, + .fgt = FGT_LORN_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, { .name = "LORC_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 3, .access = PL1_RW, .accessfn = access_lor_other, + .fgt = FGT_LORC_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, { .name = "LORID_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 7, .access = PL1_R, .accessfn = access_lor_ns, + .fgt = FGT_LORID_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, }; @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) { .name = "CTR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .opc2 = 1, .crn = 0, .crm = 0, .access = PL0_R, .accessfn = ctr_el0_access, + .fgt = FGT_CTR_EL0, .type = ARM_CP_CONST, .resetvalue = cpu->ctr }, /* TCMTR and TLBTR exist in v8 but have no 64-bit versions */ { .name = "TCMTR", -- 2.34.1 Mark up the sysreg definitions for the registers trapped by HFGRTR/HFGWTR bits 24..35. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-13-peter.maydell@linaro.org Message-id: 20230127175507.2895013-13-peter.maydell@linaro.org --- target/arm/cpregs.h | 12 ++++++++++++ target/arm/helper.c | 14 ++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { DO_BIT(HFGRTR, LORID_EL1), DO_BIT(HFGRTR, LORN_EL1), DO_BIT(HFGRTR, LORSA_EL1), + DO_BIT(HFGRTR, MAIR_EL1), + DO_BIT(HFGRTR, MIDR_EL1), + DO_BIT(HFGRTR, MPIDR_EL1), + DO_BIT(HFGRTR, PAR_EL1), + DO_BIT(HFGRTR, REVIDR_EL1), + DO_BIT(HFGRTR, SCTLR_EL1), + DO_BIT(HFGRTR, SCXTNUM_EL1), + DO_BIT(HFGRTR, SCXTNUM_EL0), + DO_BIT(HFGRTR, TCR_EL1), + DO_BIT(HFGRTR, TPIDR_EL1), + DO_BIT(HFGRTR, TPIDRRO_EL0), + DO_BIT(HFGRTR, TPIDR_EL0), } FGTBit; #undef DO_BIT diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { { .name = "MAIR_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 0, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_MAIR_EL1, .fieldoffset = offsetof(CPUARMState, cp15.mair_el[1]), .resetvalue = 0 }, { .name = "MAIR_EL3", .state = ARM_CP_STATE_AA64, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v6k_cp_reginfo[] = { { .name = "TPIDR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .opc2 = 2, .crn = 13, .crm = 0, .access = PL0_RW, + .fgt = FGT_TPIDR_EL0, .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[0]), .resetvalue = 0 }, { .name = "TPIDRURW", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 2, .access = PL0_RW, + .fgt = FGT_TPIDR_EL0, .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidrurw_s), offsetoflow32(CPUARMState, cp15.tpidrurw_ns) }, .resetfn = arm_cp_reset_ignore }, { .name = "TPIDRRO_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .opc2 = 3, .crn = 13, .crm = 0, .access = PL0_R | PL1_W, + .fgt = FGT_TPIDRRO_EL0, .fieldoffset = offsetof(CPUARMState, cp15.tpidrro_el[0]), .resetvalue = 0}, { .name = "TPIDRURO", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 3, .access = PL0_R | PL1_W, + .fgt = FGT_TPIDRRO_EL0, .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidruro_s), offsetoflow32(CPUARMState, cp15.tpidruro_ns) }, .resetfn = arm_cp_reset_ignore }, { .name = "TPIDR_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .opc2 = 4, .crn = 13, .crm = 0, .access = PL1_RW, + .fgt = FGT_TPIDR_EL1, .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[1]), .resetvalue = 0 }, { .name = "TPIDRPRW", .opc1 = 0, .cp = 15, .crn = 13, .crm = 0, .opc2 = 4, .access = PL1_RW, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo vmsa_cp_reginfo[] = { { .name = "TCR_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 2, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_TCR_EL1, .writefn = vmsa_tcr_el12_write, .raw_writefn = raw_write, .resetvalue = 0, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = { .type = ARM_CP_ALIAS, .opc0 = 3, .opc1 = 0, .crn = 7, .crm = 4, .opc2 = 0, .access = PL1_RW, .resetvalue = 0, + .fgt = FGT_PAR_EL1, .fieldoffset = offsetof(CPUARMState, cp15.par_el[1]), .writefn = par_write }, #endif @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo scxtnum_reginfo[] = { { .name = "SCXTNUM_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 13, .crm = 0, .opc2 = 7, .access = PL0_RW, .accessfn = access_scxtnum, + .fgt = FGT_SCXTNUM_EL0, .fieldoffset = offsetof(CPUARMState, scxtnum_el[0]) }, { .name = "SCXTNUM_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 7, .access = PL1_RW, .accessfn = access_scxtnum, + .fgt = FGT_SCXTNUM_EL1, .fieldoffset = offsetof(CPUARMState, scxtnum_el[1]) }, { .name = "SCXTNUM_EL2", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 7, @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) { .name = "MIDR_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 0, .opc2 = 0, .access = PL1_R, .type = ARM_CP_NO_RAW, .resetvalue = cpu->midr, + .fgt = FGT_MIDR_EL1, .fieldoffset = offsetof(CPUARMState, cp15.c0_cpuid), .readfn = midr_read }, /* crn = 0 op1 = 0 crm = 0 op2 = 7 : AArch32 aliases of MIDR */ @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 0, .opc2 = 6, .access = PL1_R, .accessfn = access_aa64_tid1, + .fgt = FGT_REVIDR_EL1, .type = ARM_CP_CONST, .resetvalue = cpu->revidr }, }; ARMCPRegInfo id_v8_midr_alias_cp_reginfo = { @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) ARMCPRegInfo mpidr_cp_reginfo[] = { { .name = "MPIDR_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 5, + .fgt = FGT_MPIDR_EL1, .access = PL1_R, .readfn = mpidr_read, .type = ARM_CP_NO_RAW }, }; #ifdef CONFIG_USER_ONLY @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) .name = "SCTLR", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 0, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_SCTLR_EL1, .bank_fieldoffsets = { offsetof(CPUARMState, cp15.sctlr_s), offsetof(CPUARMState, cp15.sctlr_ns) }, .writefn = sctlr_write, .resetvalue = cpu->reset_sctlr, -- 2.34.1 Mark up the sysreg definitions for the registers trapped by HFGRTR/HFGWTR bits 36..63. Of these, some correspond to RAS registers which we implement as always-UNDEF: these don't need any extra handling for FGT because the UNDEF-to-EL1 always takes priority over any theoretical FGT-trap-to-EL2. Bit 50 (NACCDATA_EL1) is for the ACCDATA_EL1 register which is part of the FEAT_LS64_ACCDATA feature which we don't yet implement. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-14-peter.maydell@linaro.org Message-id: 20230127175507.2895013-14-peter.maydell@linaro.org --- target/arm/cpregs.h | 7 +++++++ hw/intc/arm_gicv3_cpuif.c | 2 ++ target/arm/helper.c | 10 ++++++++++ 3 files changed, 19 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { DO_BIT(HFGRTR, TPIDR_EL1), DO_BIT(HFGRTR, TPIDRRO_EL0), DO_BIT(HFGRTR, TPIDR_EL0), + DO_BIT(HFGRTR, TTBR0_EL1), + DO_BIT(HFGRTR, TTBR1_EL1), + DO_BIT(HFGRTR, VBAR_EL1), + DO_BIT(HFGRTR, ICC_IGRPENN_EL1), + DO_BIT(HFGRTR, ERRIDR_EL1), + DO_REV_BIT(HFGRTR, NSMPRI_EL1), + DO_REV_BIT(HFGRTR, NTPIDR2_EL0), } FGTBit; #undef DO_BIT diff --git a/hw/intc/arm_gicv3_cpuif.c b/hw/intc/arm_gicv3_cpuif.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/arm_gicv3_cpuif.c +++ b/hw/intc/arm_gicv3_cpuif.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo gicv3_cpuif_reginfo[] = { .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 12, .opc2 = 6, .type = ARM_CP_IO | ARM_CP_NO_RAW, .access = PL1_RW, .accessfn = gicv3_fiq_access, + .fgt = FGT_ICC_IGRPENN_EL1, .readfn = icc_igrpen_read, .writefn = icc_igrpen_write, }, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo gicv3_cpuif_reginfo[] = { .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 12, .opc2 = 7, .type = ARM_CP_IO | ARM_CP_NO_RAW, .access = PL1_RW, .accessfn = gicv3_irq_access, + .fgt = FGT_ICC_IGRPENN_EL1, .readfn = icc_igrpen_read, .writefn = icc_igrpen_write, }, diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo vmsa_cp_reginfo[] = { { .name = "TTBR0_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 0, .opc2 = 0, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_TTBR0_EL1, .writefn = vmsa_ttbr_write, .resetvalue = 0, .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr0_s), offsetof(CPUARMState, cp15.ttbr0_ns) } }, { .name = "TTBR1_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 0, .opc2 = 1, .access = PL1_RW, .accessfn = access_tvm_trvm, + .fgt = FGT_TTBR1_EL1, .writefn = vmsa_ttbr_write, .resetvalue = 0, .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr1_s), offsetof(CPUARMState, cp15.ttbr1_ns) } }, @@ -XXX,XX +XXX,XX @@ static void disr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t val) * ERRSELR_EL1 * may generate UNDEFINED, which is the effect we get by not * listing them at all. + * + * These registers have fine-grained trap bits, but UNDEF-to-EL1 + * is higher priority than FGT-to-EL2 so we do not need to list them + * in order to check for an FGT. */ static const ARMCPRegInfo minimal_ras_reginfo[] = { { .name = "DISR_EL1", .state = ARM_CP_STATE_BOTH, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo minimal_ras_reginfo[] = { { .name = "ERRIDR_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 3, .opc2 = 0, .access = PL1_R, .accessfn = access_terr, + .fgt = FGT_ERRIDR_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, { .name = "VDISR_EL2", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 1, .opc2 = 1, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo sme_reginfo[] = { { .name = "TPIDR2_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 13, .crm = 0, .opc2 = 5, .access = PL0_RW, .accessfn = access_tpidr2, + .fgt = FGT_NTPIDR2_EL0, .fieldoffset = offsetof(CPUARMState, cp15.tpidr2_el0) }, { .name = "SVCR", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 2, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo sme_reginfo[] = { { .name = "SMPRI_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 2, .opc2 = 4, .access = PL1_RW, .accessfn = access_esm, + .fgt = FGT_NSMPRI_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, { .name = "SMPRIMAP_EL2", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 5, @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) { .name = "VBAR", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .crn = 12, .crm = 0, .opc1 = 0, .opc2 = 0, .access = PL1_RW, .writefn = vbar_write, + .fgt = FGT_VBAR_EL1, .bank_fieldoffsets = { offsetof(CPUARMState, cp15.vbar_s), offsetof(CPUARMState, cp15.vbar_ns) }, .resetvalue = 0 }, -- 2.34.1 Mark up the sysreg definitons for the registers trapped by HDFGRTR/HDFGWTR bits 0..11. These cover various debug related registers. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-15-peter.maydell@linaro.org Message-id: 20230127175507.2895013-15-peter.maydell@linaro.org --- target/arm/cpregs.h | 12 ++++++++++++ target/arm/debug_helper.c | 11 +++++++++++ 2 files changed, 23 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { DO_BIT(HFGRTR, ERRIDR_EL1), DO_REV_BIT(HFGRTR, NSMPRI_EL1), DO_REV_BIT(HFGRTR, NTPIDR2_EL0), + + /* Trap bits in HDFGRTR_EL2 / HDFGWTR_EL2, starting from bit 0. */ + DO_BIT(HDFGRTR, DBGBCRN_EL1), + DO_BIT(HDFGRTR, DBGBVRN_EL1), + DO_BIT(HDFGRTR, DBGWCRN_EL1), + DO_BIT(HDFGRTR, DBGWVRN_EL1), + DO_BIT(HDFGRTR, MDSCR_EL1), + DO_BIT(HDFGRTR, DBGCLAIM), + DO_BIT(HDFGWTR, OSLAR_EL1), + DO_BIT(HDFGRTR, OSLSR_EL1), + DO_BIT(HDFGRTR, OSECCR_EL1), + DO_BIT(HDFGRTR, OSDLR_EL1), } FGTBit; #undef DO_BIT diff --git a/target/arm/debug_helper.c b/target/arm/debug_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/debug_helper.c +++ b/target/arm/debug_helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_cp_reginfo[] = { { .name = "MDSCR_EL1", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 2, .access = PL1_RW, .accessfn = access_tda, + .fgt = FGT_MDSCR_EL1, .fieldoffset = offsetof(CPUARMState, cp15.mdscr_el1), .resetvalue = 0 }, /* @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_cp_reginfo[] = { { .name = "OSECCR_EL1", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 2, .access = PL1_RW, .accessfn = access_tda, + .fgt = FGT_OSECCR_EL1, .type = ARM_CP_CONST, .resetvalue = 0 }, /* * DBGDSCRint[15,12,5:2] map to MDSCR_EL1[15,12,5:2]. Map all bits as @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_cp_reginfo[] = { .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 4, .access = PL1_W, .type = ARM_CP_NO_RAW, .accessfn = access_tdosa, + .fgt = FGT_OSLAR_EL1, .writefn = oslar_write }, { .name = "OSLSR_EL1", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 4, .access = PL1_R, .resetvalue = 10, .accessfn = access_tdosa, + .fgt = FGT_OSLSR_EL1, .fieldoffset = offsetof(CPUARMState, cp15.oslsr_el1) }, /* Dummy OSDLR_EL1: 32-bit Linux will read this */ { .name = "OSDLR_EL1", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 1, .crm = 3, .opc2 = 4, .access = PL1_RW, .accessfn = access_tdosa, + .fgt = FGT_OSDLR_EL1, .writefn = osdlr_write, .fieldoffset = offsetof(CPUARMState, cp15.osdlr_el1) }, /* @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_cp_reginfo[] = { .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 6, .type = ARM_CP_ALIAS, .access = PL1_RW, .accessfn = access_tda, + .fgt = FGT_DBGCLAIM, .writefn = dbgclaimset_write, .readfn = dbgclaimset_read }, { .name = "DBGCLAIMCLR_EL1", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 6, .access = PL1_RW, .accessfn = access_tda, + .fgt = FGT_DBGCLAIM, .writefn = dbgclaimclr_write, .raw_writefn = raw_write, .fieldoffset = offsetof(CPUARMState, cp15.dbgclaim) }, }; @@ -XXX,XX +XXX,XX @@ void define_debug_regs(ARMCPU *cpu) { .name = dbgbvr_el1_name, .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 4, .access = PL1_RW, .accessfn = access_tda, + .fgt = FGT_DBGBVRN_EL1, .fieldoffset = offsetof(CPUARMState, cp15.dbgbvr[i]), .writefn = dbgbvr_write, .raw_writefn = raw_write }, { .name = dbgbcr_el1_name, .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 5, .access = PL1_RW, .accessfn = access_tda, + .fgt = FGT_DBGBCRN_EL1, .fieldoffset = offsetof(CPUARMState, cp15.dbgbcr[i]), .writefn = dbgbcr_write, .raw_writefn = raw_write }, @@ -XXX,XX +XXX,XX @@ void define_debug_regs(ARMCPU *cpu) { .name = dbgwvr_el1_name, .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 6, .access = PL1_RW, .accessfn = access_tda, + .fgt = FGT_DBGWVRN_EL1, .fieldoffset = offsetof(CPUARMState, cp15.dbgwvr[i]), .writefn = dbgwvr_write, .raw_writefn = raw_write }, { .name = dbgwcr_el1_name, .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = i, .opc2 = 7, .access = PL1_RW, .accessfn = access_tda, + .fgt = FGT_DBGWCRN_EL1, .fieldoffset = offsetof(CPUARMState, cp15.dbgwcr[i]), .writefn = dbgwcr_write, .raw_writefn = raw_write }, -- 2.34.1 Mark up the sysreg definitions for the registers trapped by HDFGRTR/HDFGWTR bits 12..x. Bits 12..22 and bit 58 are for PMU registers. The remaining bits in HDFGRTR/HDFGWTR are for traps on registers that are part of features we don't implement: Bits 23..32 and 63 : FEAT_SPE Bits 33..48 : FEAT_ETE Bits 50..56 : FEAT_TRBE Bits 59..61 : FEAT_BRBE Bit 62 : FEAT_SPEv1p2. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-16-peter.maydell@linaro.org Message-id: 20230127175507.2895013-16-peter.maydell@linaro.org --- target/arm/cpregs.h | 12 ++++++++++++ target/arm/helper.c | 37 +++++++++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { DO_BIT(HDFGRTR, OSLSR_EL1), DO_BIT(HDFGRTR, OSECCR_EL1), DO_BIT(HDFGRTR, OSDLR_EL1), + DO_BIT(HDFGRTR, PMEVCNTRN_EL0), + DO_BIT(HDFGRTR, PMEVTYPERN_EL0), + DO_BIT(HDFGRTR, PMCCFILTR_EL0), + DO_BIT(HDFGRTR, PMCCNTR_EL0), + DO_BIT(HDFGRTR, PMCNTEN), + DO_BIT(HDFGRTR, PMINTEN), + DO_BIT(HDFGRTR, PMOVS), + DO_BIT(HDFGRTR, PMSELR_EL0), + DO_BIT(HDFGWTR, PMSWINC_EL0), + DO_BIT(HDFGWTR, PMCR_EL0), + DO_BIT(HDFGRTR, PMMIR_EL1), + DO_BIT(HDFGRTR, PMCEIDN_EL0), } FGTBit; #undef DO_BIT diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcnten), .writefn = pmcntenset_write, .accessfn = pmreg_access, + .fgt = FGT_PMCNTEN, .raw_writefn = raw_write }, { .name = "PMCNTENSET_EL0", .state = ARM_CP_STATE_AA64, .type = ARM_CP_IO, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 1, .access = PL0_RW, .accessfn = pmreg_access, + .fgt = FGT_PMCNTEN, .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcnten), .resetvalue = 0, .writefn = pmcntenset_write, .raw_writefn = raw_write }, { .name = "PMCNTENCLR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 2, .access = PL0_RW, .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcnten), .accessfn = pmreg_access, + .fgt = FGT_PMCNTEN, .writefn = pmcntenclr_write, .type = ARM_CP_ALIAS | ARM_CP_IO }, { .name = "PMCNTENCLR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 2, .access = PL0_RW, .accessfn = pmreg_access, + .fgt = FGT_PMCNTEN, .type = ARM_CP_ALIAS | ARM_CP_IO, .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcnten), .writefn = pmcntenclr_write }, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { .access = PL0_RW, .type = ARM_CP_IO, .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmovsr), .accessfn = pmreg_access, + .fgt = FGT_PMOVS, .writefn = pmovsr_write, .raw_writefn = raw_write }, { .name = "PMOVSCLR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 3, .access = PL0_RW, .accessfn = pmreg_access, + .fgt = FGT_PMOVS, .type = ARM_CP_ALIAS | ARM_CP_IO, .fieldoffset = offsetof(CPUARMState, cp15.c9_pmovsr), .writefn = pmovsr_write, .raw_writefn = raw_write }, { .name = "PMSWINC", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 4, .access = PL0_W, .accessfn = pmreg_access_swinc, + .fgt = FGT_PMSWINC_EL0, .type = ARM_CP_NO_RAW | ARM_CP_IO, .writefn = pmswinc_write }, { .name = "PMSWINC_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 4, .access = PL0_W, .accessfn = pmreg_access_swinc, + .fgt = FGT_PMSWINC_EL0, .type = ARM_CP_NO_RAW | ARM_CP_IO, .writefn = pmswinc_write }, { .name = "PMSELR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 5, .access = PL0_RW, .type = ARM_CP_ALIAS, + .fgt = FGT_PMSELR_EL0, .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmselr), .accessfn = pmreg_access_selr, .writefn = pmselr_write, .raw_writefn = raw_write}, { .name = "PMSELR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 5, .access = PL0_RW, .accessfn = pmreg_access_selr, + .fgt = FGT_PMSELR_EL0, .fieldoffset = offsetof(CPUARMState, cp15.c9_pmselr), .writefn = pmselr_write, .raw_writefn = raw_write, }, { .name = "PMCCNTR", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 0, .access = PL0_RW, .resetvalue = 0, .type = ARM_CP_ALIAS | ARM_CP_IO, + .fgt = FGT_PMCCNTR_EL0, .readfn = pmccntr_read, .writefn = pmccntr_write32, .accessfn = pmreg_access_ccntr }, { .name = "PMCCNTR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 13, .opc2 = 0, .access = PL0_RW, .accessfn = pmreg_access_ccntr, + .fgt = FGT_PMCCNTR_EL0, .type = ARM_CP_IO, .fieldoffset = offsetof(CPUARMState, cp15.c15_ccnt), .readfn = pmccntr_read, .writefn = pmccntr_write, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { { .name = "PMCCFILTR", .cp = 15, .opc1 = 0, .crn = 14, .crm = 15, .opc2 = 7, .writefn = pmccfiltr_write_a32, .readfn = pmccfiltr_read_a32, .access = PL0_RW, .accessfn = pmreg_access, + .fgt = FGT_PMCCFILTR_EL0, .type = ARM_CP_ALIAS | ARM_CP_IO, .resetvalue = 0, }, { .name = "PMCCFILTR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 15, .opc2 = 7, .writefn = pmccfiltr_write, .raw_writefn = raw_write, .access = PL0_RW, .accessfn = pmreg_access, + .fgt = FGT_PMCCFILTR_EL0, .type = ARM_CP_IO, .fieldoffset = offsetof(CPUARMState, cp15.pmccfiltr_el0), .resetvalue = 0, }, { .name = "PMXEVTYPER", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 1, .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, .accessfn = pmreg_access, + .fgt = FGT_PMEVTYPERN_EL0, .writefn = pmxevtyper_write, .readfn = pmxevtyper_read }, { .name = "PMXEVTYPER_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 13, .opc2 = 1, .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, .accessfn = pmreg_access, + .fgt = FGT_PMEVTYPERN_EL0, .writefn = pmxevtyper_write, .readfn = pmxevtyper_read }, { .name = "PMXEVCNTR", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 2, .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, .accessfn = pmreg_access_xevcntr, + .fgt = FGT_PMEVCNTRN_EL0, .writefn = pmxevcntr_write, .readfn = pmxevcntr_read }, { .name = "PMXEVCNTR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 13, .opc2 = 2, .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, .accessfn = pmreg_access_xevcntr, + .fgt = FGT_PMEVCNTRN_EL0, .writefn = pmxevcntr_write, .readfn = pmxevcntr_read }, { .name = "PMUSERENR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 0, .access = PL0_R | PL1_RW, .accessfn = access_tpm, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { .writefn = pmuserenr_write, .raw_writefn = raw_write }, { .name = "PMINTENSET", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 1, .access = PL1_RW, .accessfn = access_tpm, + .fgt = FGT_PMINTEN, .type = ARM_CP_ALIAS | ARM_CP_IO, .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pminten), .resetvalue = 0, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v7_cp_reginfo[] = { { .name = "PMINTENSET_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 1, .access = PL1_RW, .accessfn = access_tpm, + .fgt = FGT_PMINTEN, .type = ARM_CP_IO, .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten), .writefn = pmintenset_write, .raw_writefn = raw_write, .resetvalue = 0x0 }, { .name = "PMINTENCLR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 2, .access = PL1_RW, .accessfn = access_tpm, + .fgt = FGT_PMINTEN, .type = ARM_CP_ALIAS | ARM_CP_IO | ARM_CP_NO_RAW, .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten), .writefn = pmintenclr_write, }, { .name = "PMINTENCLR_EL1", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 2, .access = PL1_RW, .accessfn = access_tpm, + .fgt = FGT_PMINTEN, .type = ARM_CP_ALIAS | ARM_CP_IO | ARM_CP_NO_RAW, .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten), .writefn = pmintenclr_write }, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo pmovsset_cp_reginfo[] = { /* PMOVSSET is not implemented in v7 before v7ve */ { .name = "PMOVSSET", .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 3, .access = PL0_RW, .accessfn = pmreg_access, + .fgt = FGT_PMOVS, .type = ARM_CP_ALIAS | ARM_CP_IO, .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmovsr), .writefn = pmovsset_write, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo pmovsset_cp_reginfo[] = { { .name = "PMOVSSET_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 14, .opc2 = 3, .access = PL0_RW, .accessfn = pmreg_access, + .fgt = FGT_PMOVS, .type = ARM_CP_ALIAS | ARM_CP_IO, .fieldoffset = offsetof(CPUARMState, cp15.c9_pmovsr), .writefn = pmovsset_write, @@ -XXX,XX +XXX,XX @@ static void define_pmu_regs(ARMCPU *cpu) ARMCPRegInfo pmcr = { .name = "PMCR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 0, .access = PL0_RW, + .fgt = FGT_PMCR_EL0, .type = ARM_CP_IO | ARM_CP_ALIAS, .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcr), .accessfn = pmreg_access, .writefn = pmcr_write, @@ -XXX,XX +XXX,XX @@ static void define_pmu_regs(ARMCPU *cpu) .name = "PMCR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 0, .access = PL0_RW, .accessfn = pmreg_access, + .fgt = FGT_PMCR_EL0, .type = ARM_CP_IO, .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcr), .resetvalue = cpu->isar.reset_pmcr_el0, @@ -XXX,XX +XXX,XX @@ static void define_pmu_regs(ARMCPU *cpu) { .name = pmevcntr_name, .cp = 15, .crn = 14, .crm = 8 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, + .fgt = FGT_PMEVCNTRN_EL0, .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, .accessfn = pmreg_access_xevcntr }, { .name = pmevcntr_el0_name, .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 8 | (3 & (i >> 3)), .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access_xevcntr, .type = ARM_CP_IO, + .fgt = FGT_PMEVCNTRN_EL0, .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, .raw_readfn = pmevcntr_rawread, .raw_writefn = pmevcntr_rawwrite }, { .name = pmevtyper_name, .cp = 15, .crn = 14, .crm = 12 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, + .fgt = FGT_PMEVTYPERN_EL0, .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, .accessfn = pmreg_access }, { .name = pmevtyper_el0_name, .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 12 | (3 & (i >> 3)), .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access, + .fgt = FGT_PMEVTYPERN_EL0, .type = ARM_CP_IO, .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, .raw_writefn = pmevtyper_rawwrite }, @@ -XXX,XX +XXX,XX @@ static void define_pmu_regs(ARMCPU *cpu) { .name = "PMCEID2", .state = ARM_CP_STATE_AA32, .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 4, .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .fgt = FGT_PMCEIDN_EL0, .resetvalue = extract64(cpu->pmceid0, 32, 32) }, { .name = "PMCEID3", .state = ARM_CP_STATE_AA32, .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 5, .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .fgt = FGT_PMCEIDN_EL0, .resetvalue = extract64(cpu->pmceid1, 32, 32) }, }; define_arm_cp_regs(cpu, v81_pmu_regs); @@ -XXX,XX +XXX,XX @@ static void define_pmu_regs(ARMCPU *cpu) .name = "PMMIR_EL1", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 6, .access = PL1_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .fgt = FGT_PMMIR_EL1, .resetvalue = 0 }; define_one_arm_cp_reg(cpu, &v84_pmmir); @@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu) { .name = "PMCEID0", .state = ARM_CP_STATE_AA32, .cp = 15, .opc1 = 0, .crn = 9, .crm = 12, .opc2 = 6, .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .fgt = FGT_PMCEIDN_EL0, .resetvalue = extract64(cpu->pmceid0, 0, 32) }, { .name = "PMCEID0_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 6, .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .fgt = FGT_PMCEIDN_EL0, .resetvalue = cpu->pmceid0 }, { .name = "PMCEID1", .state = ARM_CP_STATE_AA32, .cp = 15, .opc1 = 0, .crn = 9, .crm = 12, .opc2 = 7, .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .fgt = FGT_PMCEIDN_EL0, .resetvalue = extract64(cpu->pmceid1, 0, 32) }, { .name = "PMCEID1_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 7, .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, + .fgt = FGT_PMCEIDN_EL0, .resetvalue = cpu->pmceid1 }, }; #ifdef CONFIG_USER_ONLY -- 2.34.1 Mark up the sysreg definitions for the system instructions trapped by HFGITR bits 0..11. These bits cover various cache maintenance operations. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-17-peter.maydell@linaro.org Message-id: 20230127175507.2895013-17-peter.maydell@linaro.org --- target/arm/cpregs.h | 14 ++++++++++++++ target/arm/helper.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { DO_BIT(HDFGWTR, PMCR_EL0), DO_BIT(HDFGRTR, PMMIR_EL1), DO_BIT(HDFGRTR, PMCEIDN_EL0), + + /* Trap bits in HFGITR_EL2, starting from bit 0 */ + DO_BIT(HFGITR, ICIALLUIS), + DO_BIT(HFGITR, ICIALLU), + DO_BIT(HFGITR, ICIVAU), + DO_BIT(HFGITR, DCIVAC), + DO_BIT(HFGITR, DCISW), + DO_BIT(HFGITR, DCCSW), + DO_BIT(HFGITR, DCCISW), + DO_BIT(HFGITR, DCCVAU), + DO_BIT(HFGITR, DCCVAP), + DO_BIT(HFGITR, DCCVADP), + DO_BIT(HFGITR, DCCIVAC), + DO_BIT(HFGITR, DCZVA), } FGTBit; #undef DO_BIT diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = { #ifndef CONFIG_USER_ONLY /* Avoid overhead of an access check that always passes in user-mode */ .accessfn = aa64_zva_access, + .fgt = FGT_DCZVA, #endif }, { .name = "CURRENTEL", .state = ARM_CP_STATE_AA64, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = { { .name = "IC_IALLUIS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 1, .opc2 = 0, .access = PL1_W, .type = ARM_CP_NOP, + .fgt = FGT_ICIALLUIS, .accessfn = access_ticab }, { .name = "IC_IALLU", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 0, .access = PL1_W, .type = ARM_CP_NOP, + .fgt = FGT_ICIALLU, .accessfn = access_tocu }, { .name = "IC_IVAU", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 5, .opc2 = 1, .access = PL0_W, .type = ARM_CP_NOP, + .fgt = FGT_ICIVAU, .accessfn = access_tocu }, { .name = "DC_IVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 1, .access = PL1_W, .accessfn = aa64_cacheop_poc_access, + .fgt = FGT_DCIVAC, .type = ARM_CP_NOP }, { .name = "DC_ISW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 2, + .fgt = FGT_DCISW, .access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP }, { .name = "DC_CVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 1, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = { .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CSW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 2, + .fgt = FGT_DCCSW, .access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP }, { .name = "DC_CVAU", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 11, .opc2 = 1, .access = PL0_W, .type = ARM_CP_NOP, + .fgt = FGT_DCCVAU, .accessfn = access_tocu }, { .name = "DC_CIVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 1, .access = PL0_W, .type = ARM_CP_NOP, + .fgt = FGT_DCCIVAC, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CISW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 2, + .fgt = FGT_DCCISW, .access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP }, /* TLBI operations */ { .name = "TLBI_VMALLE1IS", .state = ARM_CP_STATE_AA64, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo dcpop_reg[] = { { .name = "DC_CVAP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 1, .access = PL0_W, .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END, + .fgt = FGT_DCCVAP, .accessfn = aa64_cacheop_poc_access, .writefn = dccvap_writefn }, }; @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo dcpodp_reg[] = { { .name = "DC_CVADP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 1, .access = PL0_W, .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END, + .fgt = FGT_DCCVADP, .accessfn = aa64_cacheop_poc_access, .writefn = dccvap_writefn }, }; #endif /*CONFIG_USER_ONLY*/ @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo mte_reginfo[] = { { .name = "DC_IGVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 3, .type = ARM_CP_NOP, .access = PL1_W, + .fgt = FGT_DCIVAC, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_IGSW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 4, + .fgt = FGT_DCISW, .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, { .name = "DC_IGDVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 5, .type = ARM_CP_NOP, .access = PL1_W, + .fgt = FGT_DCIVAC, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_IGDSW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 6, + .fgt = FGT_DCISW, .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, { .name = "DC_CGSW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 4, + .fgt = FGT_DCCSW, .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, { .name = "DC_CGDSW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 6, + .fgt = FGT_DCCSW, .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, { .name = "DC_CIGSW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 4, + .fgt = FGT_DCCISW, .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, { .name = "DC_CIGDSW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 6, + .fgt = FGT_DCCISW, .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, }; @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo mte_el0_cacheop_reginfo[] = { { .name = "DC_CGVAP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 3, .type = ARM_CP_NOP, .access = PL0_W, + .fgt = FGT_DCCVAP, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CGDVAP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 5, .type = ARM_CP_NOP, .access = PL0_W, + .fgt = FGT_DCCVAP, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CGVADP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 3, .type = ARM_CP_NOP, .access = PL0_W, + .fgt = FGT_DCCVADP, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CGDVADP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 5, .type = ARM_CP_NOP, .access = PL0_W, + .fgt = FGT_DCCVADP, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CIGVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 3, .type = ARM_CP_NOP, .access = PL0_W, + .fgt = FGT_DCCIVAC, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CIGDVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 5, .type = ARM_CP_NOP, .access = PL0_W, + .fgt = FGT_DCCIVAC, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_GVA", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 4, .opc2 = 3, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo mte_el0_cacheop_reginfo[] = { #ifndef CONFIG_USER_ONLY /* Avoid overhead of an access check that always passes in user-mode */ .accessfn = aa64_zva_access, + .fgt = FGT_DCZVA, #endif }, { .name = "DC_GZVA", .state = ARM_CP_STATE_AA64, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo mte_el0_cacheop_reginfo[] = { #ifndef CONFIG_USER_ONLY /* Avoid overhead of an access check that always passes in user-mode */ .accessfn = aa64_zva_access, + .fgt = FGT_DCZVA, #endif }, }; -- 2.34.1 Mark up the sysreg definitions for the system instructions trapped by HFGITR bits 12..17. These bits cover AT address translation instructions. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-18-peter.maydell@linaro.org Message-id: 20230127175507.2895013-18-peter.maydell@linaro.org --- target/arm/cpregs.h | 6 ++++++ target/arm/helper.c | 6 ++++++ 2 files changed, 12 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { DO_BIT(HFGITR, DCCVADP), DO_BIT(HFGITR, DCCIVAC), DO_BIT(HFGITR, DCZVA), + DO_BIT(HFGITR, ATS1E1R), + DO_BIT(HFGITR, ATS1E1W), + DO_BIT(HFGITR, ATS1E0R), + DO_BIT(HFGITR, ATS1E0W), + DO_BIT(HFGITR, ATS1E1RP), + DO_BIT(HFGITR, ATS1E1WP), } FGTBit; #undef DO_BIT diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = { { .name = "AT_S1E1R", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 0, .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .fgt = FGT_ATS1E1R, .writefn = ats_write64 }, { .name = "AT_S1E1W", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 1, .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .fgt = FGT_ATS1E1W, .writefn = ats_write64 }, { .name = "AT_S1E0R", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 2, .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .fgt = FGT_ATS1E0R, .writefn = ats_write64 }, { .name = "AT_S1E0W", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 3, .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .fgt = FGT_ATS1E0W, .writefn = ats_write64 }, { .name = "AT_S12E1R", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 4, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo ats1e1_reginfo[] = { { .name = "AT_S1E1RP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 0, .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .fgt = FGT_ATS1E1RP, .writefn = ats_write64 }, { .name = "AT_S1E1WP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 1, .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, + .fgt = FGT_ATS1E1WP, .writefn = ats_write64 }, }; -- 2.34.1 Mark up the sysreg definitions for the system instructions trapped by HFGITR bits 18..47. These bits cover TLBI TLB maintenance instructions. (If we implemented FEAT_XS we would need to trap some of the instructions added by that feature using these bits; but we don't yet, so will need to add the .fgt markup when we do.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-19-peter.maydell@linaro.org Message-id: 20230127175507.2895013-19-peter.maydell@linaro.org --- target/arm/cpregs.h | 30 ++++++++++++++++++++++++++++++ target/arm/helper.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { DO_BIT(HFGITR, ATS1E0W), DO_BIT(HFGITR, ATS1E1RP), DO_BIT(HFGITR, ATS1E1WP), + DO_BIT(HFGITR, TLBIVMALLE1OS), + DO_BIT(HFGITR, TLBIVAE1OS), + DO_BIT(HFGITR, TLBIASIDE1OS), + DO_BIT(HFGITR, TLBIVAAE1OS), + DO_BIT(HFGITR, TLBIVALE1OS), + DO_BIT(HFGITR, TLBIVAALE1OS), + DO_BIT(HFGITR, TLBIRVAE1OS), + DO_BIT(HFGITR, TLBIRVAAE1OS), + DO_BIT(HFGITR, TLBIRVALE1OS), + DO_BIT(HFGITR, TLBIRVAALE1OS), + DO_BIT(HFGITR, TLBIVMALLE1IS), + DO_BIT(HFGITR, TLBIVAE1IS), + DO_BIT(HFGITR, TLBIASIDE1IS), + DO_BIT(HFGITR, TLBIVAAE1IS), + DO_BIT(HFGITR, TLBIVALE1IS), + DO_BIT(HFGITR, TLBIVAALE1IS), + DO_BIT(HFGITR, TLBIRVAE1IS), + DO_BIT(HFGITR, TLBIRVAAE1IS), + DO_BIT(HFGITR, TLBIRVALE1IS), + DO_BIT(HFGITR, TLBIRVAALE1IS), + DO_BIT(HFGITR, TLBIRVAE1), + DO_BIT(HFGITR, TLBIRVAAE1), + DO_BIT(HFGITR, TLBIRVALE1), + DO_BIT(HFGITR, TLBIRVAALE1), + DO_BIT(HFGITR, TLBIVMALLE1), + DO_BIT(HFGITR, TLBIVAE1), + DO_BIT(HFGITR, TLBIASIDE1), + DO_BIT(HFGITR, TLBIVAAE1), + DO_BIT(HFGITR, TLBIVALE1), + DO_BIT(HFGITR, TLBIVAALE1), } FGTBit; #undef DO_BIT diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = { { .name = "TLBI_VMALLE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 0, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVMALLE1IS, .writefn = tlbi_aa64_vmalle1is_write }, { .name = "TLBI_VAE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 1, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVAE1IS, .writefn = tlbi_aa64_vae1is_write }, { .name = "TLBI_ASIDE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 2, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIASIDE1IS, .writefn = tlbi_aa64_vmalle1is_write }, { .name = "TLBI_VAAE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 3, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVAAE1IS, .writefn = tlbi_aa64_vae1is_write }, { .name = "TLBI_VALE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 5, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVALE1IS, .writefn = tlbi_aa64_vae1is_write }, { .name = "TLBI_VAALE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 7, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVAALE1IS, .writefn = tlbi_aa64_vae1is_write }, { .name = "TLBI_VMALLE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 0, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVMALLE1, .writefn = tlbi_aa64_vmalle1_write }, { .name = "TLBI_VAE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 1, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVAE1, .writefn = tlbi_aa64_vae1_write }, { .name = "TLBI_ASIDE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 2, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIASIDE1, .writefn = tlbi_aa64_vmalle1_write }, { .name = "TLBI_VAAE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 3, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVAAE1, .writefn = tlbi_aa64_vae1_write }, { .name = "TLBI_VALE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 5, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVALE1, .writefn = tlbi_aa64_vae1_write }, { .name = "TLBI_VAALE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 7, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVAALE1, .writefn = tlbi_aa64_vae1_write }, { .name = "TLBI_IPAS2E1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 1, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo tlbirange_reginfo[] = { { .name = "TLBI_RVAE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 1, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVAE1IS, .writefn = tlbi_aa64_rvae1is_write }, { .name = "TLBI_RVAAE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 3, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVAAE1IS, .writefn = tlbi_aa64_rvae1is_write }, { .name = "TLBI_RVALE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 5, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVALE1IS, .writefn = tlbi_aa64_rvae1is_write }, { .name = "TLBI_RVAALE1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 7, .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVAALE1IS, .writefn = tlbi_aa64_rvae1is_write }, { .name = "TLBI_RVAE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 1, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVAE1OS, .writefn = tlbi_aa64_rvae1is_write }, { .name = "TLBI_RVAAE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 3, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVAAE1OS, .writefn = tlbi_aa64_rvae1is_write }, { .name = "TLBI_RVALE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 5, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVALE1OS, .writefn = tlbi_aa64_rvae1is_write }, { .name = "TLBI_RVAALE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 7, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVAALE1OS, .writefn = tlbi_aa64_rvae1is_write }, { .name = "TLBI_RVAE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 1, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVAE1, .writefn = tlbi_aa64_rvae1_write }, { .name = "TLBI_RVAAE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 3, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVAAE1, .writefn = tlbi_aa64_rvae1_write }, { .name = "TLBI_RVALE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 5, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVALE1, .writefn = tlbi_aa64_rvae1_write }, { .name = "TLBI_RVAALE1", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 7, .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIRVAALE1, .writefn = tlbi_aa64_rvae1_write }, { .name = "TLBI_RIPAS2E1IS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 2, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo tlbios_reginfo[] = { { .name = "TLBI_VMALLE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 0, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVMALLE1OS, .writefn = tlbi_aa64_vmalle1is_write }, { .name = "TLBI_VAE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 1, + .fgt = FGT_TLBIVAE1OS, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, .writefn = tlbi_aa64_vae1is_write }, { .name = "TLBI_ASIDE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 2, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIASIDE1OS, .writefn = tlbi_aa64_vmalle1is_write }, { .name = "TLBI_VAAE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 3, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVAAE1OS, .writefn = tlbi_aa64_vae1is_write }, { .name = "TLBI_VALE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 5, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVALE1OS, .writefn = tlbi_aa64_vae1is_write }, { .name = "TLBI_VAALE1OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 7, .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, + .fgt = FGT_TLBIVAALE1OS, .writefn = tlbi_aa64_vae1is_write }, { .name = "TLBI_ALLE2OS", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 0, -- 2.34.1 Mark up the sysreg definitions for the system instructions trapped by HFGITR bits 48..63. Some of these bits are for trapping instructions which are not in the system instruction encoding (i.e. which are not handled by the ARMCPRegInfo mechanism): * ERET, ERETAA, ERETAB * SVC We will have to handle those separately and manually. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-20-peter.maydell@linaro.org Message-id: 20230127175507.2895013-20-peter.maydell@linaro.org --- target/arm/cpregs.h | 4 ++++ target/arm/helper.c | 9 +++++++++ 2 files changed, 13 insertions(+) diff --git a/target/arm/cpregs.h b/target/arm/cpregs.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpregs.h +++ b/target/arm/cpregs.h @@ -XXX,XX +XXX,XX @@ typedef enum FGTBit { DO_BIT(HFGITR, TLBIVAAE1), DO_BIT(HFGITR, TLBIVALE1), DO_BIT(HFGITR, TLBIVAALE1), + DO_BIT(HFGITR, CFPRCTX), + DO_BIT(HFGITR, DVPRCTX), + DO_BIT(HFGITR, CPPRCTX), + DO_BIT(HFGITR, DCCVAC), } FGTBit; #undef DO_BIT diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo v8_cp_reginfo[] = { { .name = "DC_CVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 1, .access = PL0_W, .type = ARM_CP_NOP, + .fgt = FGT_DCCVAC, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CSW", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 2, @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo mte_el0_cacheop_reginfo[] = { { .name = "DC_CGVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 3, .type = ARM_CP_NOP, .access = PL0_W, + .fgt = FGT_DCCVAC, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CGDVAC", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 5, .type = ARM_CP_NOP, .access = PL0_W, + .fgt = FGT_DCCVAC, .accessfn = aa64_cacheop_poc_access }, { .name = "DC_CGVAP", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 3, @@ -XXX,XX +XXX,XX @@ static CPAccessResult access_predinv(CPUARMState *env, const ARMCPRegInfo *ri, static const ARMCPRegInfo predinv_reginfo[] = { { .name = "CFP_RCTX", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 3, .opc2 = 4, + .fgt = FGT_CFPRCTX, .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, { .name = "DVP_RCTX", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 3, .opc2 = 5, + .fgt = FGT_DVPRCTX, .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, { .name = "CPP_RCTX", .state = ARM_CP_STATE_AA64, .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 3, .opc2 = 7, + .fgt = FGT_CPPRCTX, .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, /* * Note the AArch32 opcodes have a different OPC1. */ { .name = "CFPRCTX", .state = ARM_CP_STATE_AA32, .cp = 15, .opc1 = 0, .crn = 7, .crm = 3, .opc2 = 4, + .fgt = FGT_CFPRCTX, .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, { .name = "DVPRCTX", .state = ARM_CP_STATE_AA32, .cp = 15, .opc1 = 0, .crn = 7, .crm = 3, .opc2 = 5, + .fgt = FGT_DVPRCTX, .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, { .name = "CPPRCTX", .state = ARM_CP_STATE_AA32, .cp = 15, .opc1 = 0, .crn = 7, .crm = 3, .opc2 = 7, + .fgt = FGT_CPPRCTX, .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, }; -- 2.34.1 Implement the HFGITR_EL2.ERET fine-grained trap. This traps execution from AArch64 EL1 of ERET, ERETAA and ERETAB. The trap is reported with a syndrome value of 0x1a. The trap must take precedence over a possible pointer-authentication trap for ERETAA and ERETAB. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-21-peter.maydell@linaro.org Message-id: 20230127175507.2895013-21-peter.maydell@linaro.org --- target/arm/cpu.h | 1 + target/arm/syndrome.h | 10 ++++++++++ target/arm/translate.h | 2 ++ target/arm/helper.c | 3 +++ target/arm/translate-a64.c | 10 ++++++++++ 5 files changed, 26 insertions(+) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ FIELD(TBFLAG_A64, PSTATE_ZA, 23, 1) FIELD(TBFLAG_A64, SVL, 24, 4) /* Indicates that SME Streaming mode is active, and SMCR_ELx.FA64 is not. */ FIELD(TBFLAG_A64, SME_TRAP_NONSTREAMING, 28, 1) +FIELD(TBFLAG_A64, FGT_ERET, 29, 1) /* * Helpers for using the above. diff --git a/target/arm/syndrome.h b/target/arm/syndrome.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/syndrome.h +++ b/target/arm/syndrome.h @@ -XXX,XX +XXX,XX @@ enum arm_exception_class { EC_AA64_SMC = 0x17, EC_SYSTEMREGISTERTRAP = 0x18, EC_SVEACCESSTRAP = 0x19, + EC_ERETTRAP = 0x1a, EC_SMETRAP = 0x1d, EC_INSNABORT = 0x20, EC_INSNABORT_SAME_EL = 0x21, @@ -XXX,XX +XXX,XX @@ static inline uint32_t syn_sve_access_trap(void) return EC_SVEACCESSTRAP << ARM_EL_EC_SHIFT; } +/* + * eret_op is bits [1:0] of the ERET instruction, so: + * 0 for ERET, 2 for ERETAA, 3 for ERETAB. + */ +static inline uint32_t syn_erettrap(int eret_op) +{ + return (EC_ERETTRAP << ARM_EL_EC_SHIFT) | ARM_EL_IL | eret_op; +} + static inline uint32_t syn_smetrap(SMEExceptionType etype, bool is_16bit) { return (EC_SMETRAP << ARM_EL_EC_SHIFT) diff --git a/target/arm/translate.h b/target/arm/translate.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.h +++ b/target/arm/translate.h @@ -XXX,XX +XXX,XX @@ typedef struct DisasContext { bool mve_no_pred; /* True if fine-grained traps are active */ bool fgt_active; + /* True if fine-grained trap on ERET is enabled */ + bool fgt_eret; /* * >= 0, a copy of PSTATE.BTYPE, which will be 0 without v8.5-BTI. * < 0, set by the current instruction. diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ static CPUARMTBFlags rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, if (arm_fgt_active(env, el)) { DP_TBFLAG_ANY(flags, FGT_ACTIVE, 1); + if (FIELD_EX64(env->cp15.fgt_exec[FGTREG_HFGITR], HFGITR_EL2, ERET)) { + DP_TBFLAG_A64(flags, FGT_ERET, 1); + } } if (cpu_isar_feature(aa64_mte, env_archcpu(env))) { diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -XXX,XX +XXX,XX @@ static void disas_uncond_b_reg(DisasContext *s, uint32_t insn) if (op4 != 0) { goto do_unallocated; } + if (s->fgt_eret) { + gen_exception_insn_el(s, 0, EXCP_UDEF, syn_erettrap(op3), 2); + return; + } dst = tcg_temp_new_i64(); tcg_gen_ld_i64(dst, cpu_env, offsetof(CPUARMState, elr_el[s->current_el])); @@ -XXX,XX +XXX,XX @@ static void disas_uncond_b_reg(DisasContext *s, uint32_t insn) if (rn != 0x1f || op4 != 0x1f) { goto do_unallocated; } + /* The FGT trap takes precedence over an auth trap. */ + if (s->fgt_eret) { + gen_exception_insn_el(s, 0, EXCP_UDEF, syn_erettrap(op3), 2); + return; + } dst = tcg_temp_new_i64(); tcg_gen_ld_i64(dst, cpu_env, offsetof(CPUARMState, elr_el[s->current_el])); @@ -XXX,XX +XXX,XX @@ static void aarch64_tr_init_disas_context(DisasContextBase *dcbase, dc->align_mem = EX_TBFLAG_ANY(tb_flags, ALIGN_MEM); dc->pstate_il = EX_TBFLAG_ANY(tb_flags, PSTATE__IL); dc->fgt_active = EX_TBFLAG_ANY(tb_flags, FGT_ACTIVE); + dc->fgt_eret = EX_TBFLAG_A64(tb_flags, FGT_ERET); dc->sve_excp_el = EX_TBFLAG_A64(tb_flags, SVEEXC_EL); dc->sme_excp_el = EX_TBFLAG_A64(tb_flags, SMEEXC_EL); dc->vl = (EX_TBFLAG_A64(tb_flags, VL) + 1) * 16; -- 2.34.1 Implement the HFGITR_EL2.SVC_EL0 and SVC_EL1 fine-grained traps. These trap execution of the SVC instruction from AArch32 and AArch64. (As usual, AArch32 can only trap from EL0, as fine grained traps are disabled with an AArch32 EL1.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-22-peter.maydell@linaro.org Message-id: 20230127175507.2895013-22-peter.maydell@linaro.org --- target/arm/cpu.h | 1 + target/arm/translate.h | 2 ++ target/arm/helper.c | 20 ++++++++++++++++++++ target/arm/translate-a64.c | 9 ++++++++- target/arm/translate.c | 12 +++++++++--- 5 files changed, 40 insertions(+), 4 deletions(-) diff --git a/target/arm/cpu.h b/target/arm/cpu.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -XXX,XX +XXX,XX @@ FIELD(TBFLAG_ANY, FPEXC_EL, 8, 2) FIELD(TBFLAG_ANY, ALIGN_MEM, 10, 1) FIELD(TBFLAG_ANY, PSTATE__IL, 11, 1) FIELD(TBFLAG_ANY, FGT_ACTIVE, 12, 1) +FIELD(TBFLAG_ANY, FGT_SVC, 13, 1) /* * Bit usage when in AArch32 state, both A- and M-profile. diff --git a/target/arm/translate.h b/target/arm/translate.h index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.h +++ b/target/arm/translate.h @@ -XXX,XX +XXX,XX @@ typedef struct DisasContext { bool fgt_active; /* True if fine-grained trap on ERET is enabled */ bool fgt_eret; + /* True if fine-grained trap on SVC is enabled */ + bool fgt_svc; /* * >= 0, a copy of PSTATE.BTYPE, which will be 0 without v8.5-BTI. * < 0, set by the current instruction. diff --git a/target/arm/helper.c b/target/arm/helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -XXX,XX +XXX,XX @@ ARMMMUIdx arm_mmu_idx(CPUARMState *env) return arm_mmu_idx_el(env, arm_current_el(env)); } +static inline bool fgt_svc(CPUARMState *env, int el) +{ + /* + * Assuming fine-grained-traps are active, return true if we + * should be trapping on SVC instructions. Only AArch64 can + * trap on an SVC at EL1, but we don't need to special-case this + * because if this is AArch32 EL1 then arm_fgt_active() is false. + * We also know el is 0 or 1. + */ + return el == 0 ? + FIELD_EX64(env->cp15.fgt_exec[FGTREG_HFGITR], HFGITR_EL2, SVC_EL0) : + FIELD_EX64(env->cp15.fgt_exec[FGTREG_HFGITR], HFGITR_EL2, SVC_EL1); +} + static CPUARMTBFlags rebuild_hflags_common(CPUARMState *env, int fp_el, ARMMMUIdx mmu_idx, CPUARMTBFlags flags) @@ -XXX,XX +XXX,XX @@ static CPUARMTBFlags rebuild_hflags_a32(CPUARMState *env, int fp_el, if (arm_fgt_active(env, el)) { DP_TBFLAG_ANY(flags, FGT_ACTIVE, 1); + if (fgt_svc(env, el)) { + DP_TBFLAG_ANY(flags, FGT_SVC, 1); + } } if (env->uncached_cpsr & CPSR_IL) { @@ -XXX,XX +XXX,XX @@ static CPUARMTBFlags rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, if (FIELD_EX64(env->cp15.fgt_exec[FGTREG_HFGITR], HFGITR_EL2, ERET)) { DP_TBFLAG_A64(flags, FGT_ERET, 1); } + if (fgt_svc(env, el)) { + DP_TBFLAG_ANY(flags, FGT_SVC, 1); + } } if (cpu_isar_feature(aa64_mte, env_archcpu(env))) { diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -XXX,XX +XXX,XX @@ static void disas_exc(DisasContext *s, uint32_t insn) int opc = extract32(insn, 21, 3); int op2_ll = extract32(insn, 0, 5); int imm16 = extract32(insn, 5, 16); + uint32_t syndrome; switch (opc) { case 0: @@ -XXX,XX +XXX,XX @@ static void disas_exc(DisasContext *s, uint32_t insn) */ switch (op2_ll) { case 1: /* SVC */ + syndrome = syn_aa64_svc(imm16); + if (s->fgt_svc) { + gen_exception_insn_el(s, 0, EXCP_UDEF, syndrome, 2); + break; + } gen_ss_advance(s); - gen_exception_insn(s, 4, EXCP_SWI, syn_aa64_svc(imm16)); + gen_exception_insn(s, 4, EXCP_SWI, syndrome); break; case 2: /* HVC */ if (s->current_el == 0) { @@ -XXX,XX +XXX,XX @@ static void aarch64_tr_init_disas_context(DisasContextBase *dcbase, dc->align_mem = EX_TBFLAG_ANY(tb_flags, ALIGN_MEM); dc->pstate_il = EX_TBFLAG_ANY(tb_flags, PSTATE__IL); dc->fgt_active = EX_TBFLAG_ANY(tb_flags, FGT_ACTIVE); + dc->fgt_svc = EX_TBFLAG_ANY(tb_flags, FGT_SVC); dc->fgt_eret = EX_TBFLAG_A64(tb_flags, FGT_ERET); dc->sve_excp_el = EX_TBFLAG_A64(tb_flags, SVEEXC_EL); dc->sme_excp_el = EX_TBFLAG_A64(tb_flags, SMEEXC_EL); diff --git a/target/arm/translate.c b/target/arm/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/translate.c +++ b/target/arm/translate.c @@ -XXX,XX +XXX,XX @@ static bool trans_SVC(DisasContext *s, arg_SVC *a) (a->imm == semihost_imm)) { gen_exception_internal_insn(s, EXCP_SEMIHOST); } else { - gen_update_pc(s, curr_insn_len(s)); - s->svc_imm = a->imm; - s->base.is_jmp = DISAS_SWI; + if (s->fgt_svc) { + uint32_t syndrome = syn_aa32_svc(a->imm, s->thumb); + gen_exception_insn_el(s, 0, EXCP_UDEF, syndrome, 2); + } else { + gen_update_pc(s, curr_insn_len(s)); + s->svc_imm = a->imm; + s->base.is_jmp = DISAS_SWI; + } } return true; } @@ -XXX,XX +XXX,XX @@ static void arm_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) dc->align_mem = EX_TBFLAG_ANY(tb_flags, ALIGN_MEM); dc->pstate_il = EX_TBFLAG_ANY(tb_flags, PSTATE__IL); dc->fgt_active = EX_TBFLAG_ANY(tb_flags, FGT_ACTIVE); + dc->fgt_svc = EX_TBFLAG_ANY(tb_flags, FGT_SVC); if (arm_feature(env, ARM_FEATURE_M)) { dc->vfp_enabled = 1; -- 2.34.1 FEAT_FGT also implements an extra trap bit in the MDCR_EL2 and MDCR_EL3 registers: bit TDCC enables trapping of use of the Debug Comms Channel registers OSDTRRX_EL1, OSDTRTX_EL1, MDCCSR_EL0, MDCCINT_EL0, DBGDTR_EL0, DBGDTRRX_EL0 and DBGDTRTX_EL0 (and their AArch32 equivalents). This trapping is independent of whether fine-grained traps are enabled or not. Implement these extra traps. (We don't implement DBGDTR_EL0, DBGDTRRX_EL0 and DBGDTRTX_EL0.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-23-peter.maydell@linaro.org Message-id: 20230127175507.2895013-23-peter.maydell@linaro.org --- target/arm/debug_helper.c | 35 +++++++++++++++++++++++++++++++---- 1 file changed, 31 insertions(+), 4 deletions(-) diff --git a/target/arm/debug_helper.c b/target/arm/debug_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/debug_helper.c +++ b/target/arm/debug_helper.c @@ -XXX,XX +XXX,XX @@ static CPAccessResult access_tda(CPUARMState *env, const ARMCPRegInfo *ri, return CP_ACCESS_OK; } +/* + * Check for traps to Debug Comms Channel registers. If FEAT_FGT + * is implemented then these are controlled by MDCR_EL2.TDCC for + * EL2 and MDCR_EL3.TDCC for EL3. They are also controlled by + * the general debug access trap bits MDCR_EL2.TDA and MDCR_EL3.TDA. + */ +static CPAccessResult access_tdcc(CPUARMState *env, const ARMCPRegInfo *ri, + bool isread) +{ + int el = arm_current_el(env); + uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); + bool mdcr_el2_tda = (mdcr_el2 & MDCR_TDA) || (mdcr_el2 & MDCR_TDE) || + (arm_hcr_el2_eff(env) & HCR_TGE); + bool mdcr_el2_tdcc = cpu_isar_feature(aa64_fgt, env_archcpu(env)) && + (mdcr_el2 & MDCR_TDCC); + bool mdcr_el3_tdcc = cpu_isar_feature(aa64_fgt, env_archcpu(env)) && + (env->cp15.mdcr_el3 & MDCR_TDCC); + + if (el < 2 && (mdcr_el2_tda || mdcr_el2_tdcc)) { + return CP_ACCESS_TRAP_EL2; + } + if (el < 3 && ((env->cp15.mdcr_el3 & MDCR_TDA) || mdcr_el3_tdcc)) { + return CP_ACCESS_TRAP_EL3; + } + return CP_ACCESS_OK; +} + static void oslar_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_cp_reginfo[] = { */ { .name = "MDCCSR_EL0", .state = ARM_CP_STATE_AA64, .opc0 = 2, .opc1 = 3, .crn = 0, .crm = 1, .opc2 = 0, - .access = PL0_R, .accessfn = access_tda, + .access = PL0_R, .accessfn = access_tdcc, .type = ARM_CP_CONST, .resetvalue = 0 }, /* * OSDTRRX_EL1/OSDTRTX_EL1 are used for save and restore of DBGDTRRX_EL0. @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_cp_reginfo[] = { */ { .name = "OSDTRRX_EL1", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 0, .opc2 = 2, - .access = PL1_RW, .accessfn = access_tda, + .access = PL1_RW, .accessfn = access_tdcc, .type = ARM_CP_CONST, .resetvalue = 0 }, { .name = "OSDTRTX_EL1", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 2, - .access = PL1_RW, .accessfn = access_tda, + .access = PL1_RW, .accessfn = access_tdcc, .type = ARM_CP_CONST, .resetvalue = 0 }, /* * OSECCR_EL1 provides a mechanism for an operating system @@ -XXX,XX +XXX,XX @@ static const ARMCPRegInfo debug_cp_reginfo[] = { */ { .name = "MDCCINT_EL1", .state = ARM_CP_STATE_BOTH, .cp = 14, .opc0 = 2, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 0, - .access = PL1_RW, .accessfn = access_tda, + .access = PL1_RW, .accessfn = access_tdcc, .type = ARM_CP_NOP }, /* * Dummy DBGCLAIM registers. -- 2.34.1 Update the ID registers for TCG's '-cpu max' to report the presence of FEAT_FGT Fine-Grained Traps support. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Fuad Tabba <tabba@google.com> Message-id: 20230130182459.3309057-24-peter.maydell@linaro.org Message-id: 20230127175507.2895013-24-peter.maydell@linaro.org --- docs/system/arm/emulation.rst | 1 + target/arm/cpu64.c | 1 + 2 files changed, 2 insertions(+) diff --git a/docs/system/arm/emulation.rst b/docs/system/arm/emulation.rst index XXXXXXX..XXXXXXX 100644 --- a/docs/system/arm/emulation.rst +++ b/docs/system/arm/emulation.rst @@ -XXX,XX +XXX,XX @@ the following architecture extensions: - FEAT_ETS (Enhanced Translation Synchronization) - FEAT_EVT (Enhanced Virtualization Traps) - FEAT_FCMA (Floating-point complex number instructions) +- FEAT_FGT (Fine-Grained Traps) - FEAT_FHM (Floating-point half-precision multiplication instructions) - FEAT_FP16 (Half-precision floating-point data processing) - FEAT_FRINTTS (Floating-point to integer instructions) diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/cpu64.c +++ b/target/arm/cpu64.c @@ -XXX,XX +XXX,XX @@ static void aarch64_max_initfn(Object *obj) t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN16_2, 2); /* 16k stage2 supported */ t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN64_2, 2); /* 64k stage2 supported */ t = FIELD_DP64(t, ID_AA64MMFR0, TGRAN4_2, 2); /* 4k stage2 supported */ + t = FIELD_DP64(t, ID_AA64MMFR0, FGT, 1); /* FEAT_FGT */ cpu->isar.id_aa64mmfr0 = t; t = cpu->isar.id_aa64mmfr1; -- 2.34.1