1
Arm patch queue -- these are all bug fix patches but we might
1
The following changes since commit 5767815218efd3cbfd409505ed824d5f356044ae:
2
as well put them in to rc0...
3
2
4
thanks
3
Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging (2024-02-14 15:45:52 +0000)
5
-- PMM
6
7
The following changes since commit 2c8cfc0b52b5a4d123c26c0b5fdf941be24805be:
8
9
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging (2018-03-19 11:44:26 +0000)
10
4
11
are available in the Git repository at:
5
are available in the Git repository at:
12
6
13
git://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20180319
7
https://git.linaro.org/people/pmaydell/qemu-arm.git tags/pull-target-arm-20240215
14
8
15
for you to fetch changes up to ff72cb6b46b95bb530787add5277c211af3d31c6:
9
for you to fetch changes up to f780e63fe731b058fe52d43653600d8729a1b5f2:
16
10
17
hw/arm/raspi: Provide spin-loop code for AArch64 CPUs (2018-03-19 18:23:24 +0000)
11
docs: Add documentation for the mps3-an536 board (2024-02-15 14:32:39 +0000)
18
12
19
----------------------------------------------------------------
13
----------------------------------------------------------------
20
target-arm queue:
14
target-arm queue:
21
* fsl-imx6: Fix incorrect Ethernet interrupt defines
15
* hw/arm/xilinx_zynq: Wire FIQ between CPU <> GIC
22
* dump: Update correct kdump phys_base field for AArch64
16
* linux-user/aarch64: Choose SYNC as the preferred MTE mode
23
* char: i.MX: Add support for "TX complete" interrupt
17
* Fix some errors in SVE/SME handling of MTE tags
24
* bcm2836/raspi: Fix various bugs resulting in panics trying
18
* hw/pci-host/raven.c: Mark raven_io_ops as implementing unaligned accesses
25
to boot a Debian Linux kernel on raspi3
19
* hw/block/tc58128: Don't emit deprecation warning under qtest
20
* tests/qtest: Fix handling of npcm7xx and GMAC tests
21
* hw/arm/virt: Wire up non-secure EL2 virtual timer IRQ
22
* tests/qtest/npcm7xx_emc-test: Connect all NICs to a backend
23
* Don't assert on vmload/vmsave of M-profile CPUs
24
* hw/arm/smmuv3: add support for stage 1 access fault
25
* hw/arm/stellaris: QOM cleanups
26
* Use new CBAR encoding for all v8 CPUs, not all aarch64 CPUs
27
* Improve Cortex_R52 IMPDEF sysreg modelling
28
* Allow access to SPSR_hyp from hyp mode
29
* New board model mps3-an536 (Cortex-R52)
26
30
27
----------------------------------------------------------------
31
----------------------------------------------------------------
28
Andrey Smirnov (2):
32
Luc Michel (1):
29
char: i.MX: Simplify imx_update()
33
hw/arm/smmuv3: add support for stage 1 access fault
30
char: i.MX: Add support for "TX complete" interrupt
31
34
32
Guenter Roeck (1):
35
Nabih Estefan (1):
33
fsl-imx6: Swap Ethernet interrupt defines
36
tests/qtest: Fix GMAC test to run on a machine in upstream QEMU
34
37
35
Peter Maydell (9):
38
Peter Maydell (22):
36
hw/arm/raspi: Don't do board-setup or secure-boot for raspi3
39
hw/pci-host/raven.c: Mark raven_io_ops as implementing unaligned accesses
37
hw/arm/boot: assert that secure_boot and secure_board_setup are false for AArch64
40
hw/block/tc58128: Don't emit deprecation warning under qtest
38
hw/arm/boot: If booting a kernel in EL2, set SCR_EL3.HCE
41
tests/qtest/meson.build: Don't include qtests_npcm7xx in qtests_aarch64
39
hw/arm/bcm2386: Fix parent type of bcm2386
42
tests/qtest/bios-tables-test: Allow changes to virt GTDT
40
hw/arm/bcm2836: Rename bcm2836 type/struct to bcm283x
43
hw/arm/virt: Wire up non-secure EL2 virtual timer IRQ
41
hw/arm/bcm2836: Create proper bcm2837 device
44
tests/qtest/bios-tables-tests: Update virt golden reference
42
hw/arm/bcm2836: Use correct affinity values for BCM2837
45
hw/arm/npcm7xx: Call qemu_configure_nic_device() for GMAC modules
43
hw/arm/bcm2836: Hardcode correct CPU type
46
tests/qtest/npcm7xx_emc-test: Connect all NICs to a backend
44
hw/arm/raspi: Provide spin-loop code for AArch64 CPUs
47
target/arm: Don't get MDCR_EL2 in pmu_counter_enabled() before checking ARM_FEATURE_PMU
48
target/arm: Use new CBAR encoding for all v8 CPUs, not all aarch64 CPUs
49
target/arm: The Cortex-R52 has a read-only CBAR
50
target/arm: Add Cortex-R52 IMPDEF sysregs
51
target/arm: Allow access to SPSR_hyp from hyp mode
52
hw/misc/mps2-scc: Fix condition for CFG3 register
53
hw/misc/mps2-scc: Factor out which-board conditionals
54
hw/misc/mps2-scc: Make changes needed for AN536 FPGA image
55
hw/arm/mps3r: Initial skeleton for mps3-an536 board
56
hw/arm/mps3r: Add CPUs, GIC, and per-CPU RAM
57
hw/arm/mps3r: Add UARTs
58
hw/arm/mps3r: Add GPIO, watchdog, dual-timer, I2C devices
59
hw/arm/mps3r: Add remaining devices
60
docs: Add documentation for the mps3-an536 board
45
61
46
Wei Huang (1):
62
Philippe Mathieu-Daudé (5):
47
dump: Update correct kdump phys_base field for AArch64
63
hw/arm/xilinx_zynq: Wire FIQ between CPU <> GIC
64
hw/arm/stellaris: Convert ADC controller to Resettable interface
65
hw/arm/stellaris: Convert I2C controller to Resettable interface
66
hw/arm/stellaris: Add missing QOM 'machine' parent
67
hw/arm/stellaris: Add missing QOM 'SoC' parent
48
68
49
include/hw/arm/bcm2836.h | 31 +++++++++++++---
69
Richard Henderson (6):
50
include/hw/arm/fsl-imx6.h | 4 +-
70
linux-user/aarch64: Choose SYNC as the preferred MTE mode
51
include/hw/char/imx_serial.h | 3 ++
71
target/arm: Fix nregs computation in do_{ld,st}_zpa
52
dump.c | 14 +++++--
72
target/arm: Adjust and validate mtedesc sizem1
53
hw/arm/bcm2836.c | 87 +++++++++++++++++++++++++++++++-------------
73
target/arm: Split out make_svemte_desc
54
hw/arm/boot.c | 12 ++++++
74
target/arm: Handle mte in do_ldrq, do_ldro
55
hw/arm/raspi.c | 77 +++++++++++++++++++++++++++++++--------
75
target/arm: Fix SVE/SME gross MTE suppression checks
56
hw/char/imx_serial.c | 44 ++++++++++++++++------
57
hw/net/imx_fec.c | 28 +++++++++++++-
58
9 files changed, 237 insertions(+), 63 deletions(-)
59
76
77
MAINTAINERS | 3 +-
78
docs/system/arm/mps2.rst | 37 +-
79
configs/devices/arm-softmmu/default.mak | 1 +
80
hw/arm/smmuv3-internal.h | 1 +
81
include/hw/arm/smmu-common.h | 1 +
82
include/hw/arm/virt.h | 2 +
83
include/hw/misc/mps2-scc.h | 1 +
84
linux-user/aarch64/target_prctl.h | 29 +-
85
target/arm/internals.h | 2 +-
86
target/arm/tcg/translate-a64.h | 2 +
87
hw/arm/mps3r.c | 640 ++++++++++++++++++++++++++++++++
88
hw/arm/npcm7xx.c | 1 +
89
hw/arm/smmu-common.c | 11 +
90
hw/arm/smmuv3.c | 1 +
91
hw/arm/stellaris.c | 47 ++-
92
hw/arm/virt-acpi-build.c | 20 +-
93
hw/arm/virt.c | 60 ++-
94
hw/arm/xilinx_zynq.c | 2 +
95
hw/block/tc58128.c | 4 +-
96
hw/misc/mps2-scc.c | 138 ++++++-
97
hw/pci-host/raven.c | 1 +
98
target/arm/helper.c | 14 +-
99
target/arm/tcg/cpu32.c | 109 ++++++
100
target/arm/tcg/op_helper.c | 43 ++-
101
target/arm/tcg/sme_helper.c | 8 +-
102
target/arm/tcg/sve_helper.c | 12 +-
103
target/arm/tcg/translate-sme.c | 15 +-
104
target/arm/tcg/translate-sve.c | 83 +++--
105
target/arm/tcg/translate.c | 19 +-
106
tests/qtest/npcm7xx_emc-test.c | 5 +-
107
tests/qtest/npcm_gmac-test.c | 84 +----
108
hw/arm/Kconfig | 5 +
109
hw/arm/meson.build | 1 +
110
tests/data/acpi/virt/FACP | Bin 276 -> 276 bytes
111
tests/data/acpi/virt/GTDT | Bin 96 -> 104 bytes
112
tests/qtest/meson.build | 4 +-
113
36 files changed, 1184 insertions(+), 222 deletions(-)
114
create mode 100644 hw/arm/mps3r.c
115
diff view generated by jsdifflib
1
From: Andrey Smirnov <andrew.smirnov@gmail.com>
1
From: Philippe Mathieu-Daudé <philmd@linaro.org>
2
2
3
Add support for "TX complete"/TXDC interrupt generate by real HW since
3
Similarly to commits dadbb58f59..5ae79fe825 for other ARM boards,
4
it is needed to support guests other than Linux.
4
connect FIQ output of the GIC CPU interfaces to the CPU.
5
5
6
Based on the patch by Bill Paul as found here:
6
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
7
https://bugs.launchpad.net/qemu/+bug/1753314
7
Message-id: 20240130152548.17855-1-philmd@linaro.org
8
9
Cc: qemu-devel@nongnu.org
10
Cc: qemu-arm@nongnu.org
11
Cc: Bill Paul <wpaul@windriver.com>
12
Cc: Peter Maydell <peter.maydell@linaro.org>
13
Signed-off-by: Bill Paul <wpaul@windriver.com>
14
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
15
Message-id: 20180315191141.6789-2-andrew.smirnov@gmail.com
16
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
17
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
18
---
10
---
19
include/hw/char/imx_serial.h | 3 +++
11
hw/arm/xilinx_zynq.c | 2 ++
20
hw/char/imx_serial.c | 20 +++++++++++++++++---
12
1 file changed, 2 insertions(+)
21
2 files changed, 20 insertions(+), 3 deletions(-)
22
13
23
diff --git a/include/hw/char/imx_serial.h b/include/hw/char/imx_serial.h
14
diff --git a/hw/arm/xilinx_zynq.c b/hw/arm/xilinx_zynq.c
24
index XXXXXXX..XXXXXXX 100644
15
index XXXXXXX..XXXXXXX 100644
25
--- a/include/hw/char/imx_serial.h
16
--- a/hw/arm/xilinx_zynq.c
26
+++ b/include/hw/char/imx_serial.h
17
+++ b/hw/arm/xilinx_zynq.c
27
@@ -XXX,XX +XXX,XX @@
18
@@ -XXX,XX +XXX,XX @@ static void zynq_init(MachineState *machine)
28
#define UCR2_RXEN (1<<1) /* Receiver enable */
19
sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE);
29
#define UCR2_SRST (1<<0) /* Reset complete */
20
sysbus_connect_irq(busdev, 0,
30
21
qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));
31
+#define UCR4_TCEN BIT(3) /* TX complete interrupt enable */
22
+ sysbus_connect_irq(busdev, 1,
32
+
23
+ qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_FIQ));
33
#define UTS1_TXEMPTY (1<<6)
24
34
#define UTS1_RXEMPTY (1<<5)
25
for (n = 0; n < 64; n++) {
35
#define UTS1_TXFULL (1<<4)
26
pic[n] = qdev_get_gpio_in(dev, n);
36
@@ -XXX,XX +XXX,XX @@ typedef struct IMXSerialState {
37
uint32_t ubmr;
38
uint32_t ubrc;
39
uint32_t ucr3;
40
+ uint32_t ucr4;
41
42
qemu_irq irq;
43
CharBackend chr;
44
diff --git a/hw/char/imx_serial.c b/hw/char/imx_serial.c
45
index XXXXXXX..XXXXXXX 100644
46
--- a/hw/char/imx_serial.c
47
+++ b/hw/char/imx_serial.c
48
@@ -XXX,XX +XXX,XX @@
49
50
static const VMStateDescription vmstate_imx_serial = {
51
.name = TYPE_IMX_SERIAL,
52
- .version_id = 1,
53
- .minimum_version_id = 1,
54
+ .version_id = 2,
55
+ .minimum_version_id = 2,
56
.fields = (VMStateField[]) {
57
VMSTATE_INT32(readbuff, IMXSerialState),
58
VMSTATE_UINT32(usr1, IMXSerialState),
59
@@ -XXX,XX +XXX,XX @@ static const VMStateDescription vmstate_imx_serial = {
60
VMSTATE_UINT32(ubmr, IMXSerialState),
61
VMSTATE_UINT32(ubrc, IMXSerialState),
62
VMSTATE_UINT32(ucr3, IMXSerialState),
63
+ VMSTATE_UINT32(ucr4, IMXSerialState),
64
VMSTATE_END_OF_LIST()
65
},
66
};
67
@@ -XXX,XX +XXX,XX @@ static void imx_update(IMXSerialState *s)
68
* unfortunately.
69
*/
70
mask = (s->ucr1 & UCR1_TXMPTYEN) ? USR2_TXFE : 0;
71
+ /*
72
+ * TCEN and TXDC are both bit 3
73
+ */
74
+ mask |= s->ucr4 & UCR4_TCEN;
75
+
76
usr2 = s->usr2 & mask;
77
78
qemu_set_irq(s->irq, usr1 || usr2);
79
@@ -XXX,XX +XXX,XX @@ static uint64_t imx_serial_read(void *opaque, hwaddr offset,
80
return s->ucr3;
81
82
case 0x23: /* UCR4 */
83
+ return s->ucr4;
84
+
85
case 0x29: /* BRM Incremental */
86
return 0x0; /* TODO */
87
88
@@ -XXX,XX +XXX,XX @@ static void imx_serial_write(void *opaque, hwaddr offset,
89
* qemu_chr_fe_write and background I/O callbacks */
90
qemu_chr_fe_write_all(&s->chr, &ch, 1);
91
s->usr1 &= ~USR1_TRDY;
92
+ s->usr2 &= ~USR2_TXDC;
93
imx_update(s);
94
s->usr1 |= USR1_TRDY;
95
+ s->usr2 |= USR2_TXDC;
96
imx_update(s);
97
}
98
break;
99
@@ -XXX,XX +XXX,XX @@ static void imx_serial_write(void *opaque, hwaddr offset,
100
s->ucr3 = value & 0xffff;
101
break;
102
103
- case 0x2d: /* UTS1 */
104
case 0x23: /* UCR4 */
105
+ s->ucr4 = value & 0xffff;
106
+ imx_update(s);
107
+ break;
108
+
109
+ case 0x2d: /* UTS1 */
110
qemu_log_mask(LOG_UNIMP, "[%s]%s: Unimplemented reg 0x%"
111
HWADDR_PRIx "\n", TYPE_IMX_SERIAL, __func__, offset);
112
/* TODO */
113
--
27
--
114
2.16.2
28
2.34.1
115
29
116
30
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
The API does not generate an error for setting ASYNC | SYNC; that merely
4
constrains the selection vs the per-cpu default. For qemu linux-user,
5
choose SYNC as the default.
6
7
Cc: qemu-stable@nongnu.org
8
Reported-by: Gustavo Romero <gustavo.romero@linaro.org>
9
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
10
Tested-by: Gustavo Romero <gustavo.romero@linaro.org>
11
Message-id: 20240207025210.8837-2-richard.henderson@linaro.org
12
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
13
---
14
linux-user/aarch64/target_prctl.h | 29 +++++++++++++++++------------
15
1 file changed, 17 insertions(+), 12 deletions(-)
16
17
diff --git a/linux-user/aarch64/target_prctl.h b/linux-user/aarch64/target_prctl.h
18
index XXXXXXX..XXXXXXX 100644
19
--- a/linux-user/aarch64/target_prctl.h
20
+++ b/linux-user/aarch64/target_prctl.h
21
@@ -XXX,XX +XXX,XX @@ static abi_long do_prctl_set_tagged_addr_ctrl(CPUArchState *env, abi_long arg2)
22
env->tagged_addr_enable = arg2 & PR_TAGGED_ADDR_ENABLE;
23
24
if (cpu_isar_feature(aa64_mte, cpu)) {
25
- switch (arg2 & PR_MTE_TCF_MASK) {
26
- case PR_MTE_TCF_NONE:
27
- case PR_MTE_TCF_SYNC:
28
- case PR_MTE_TCF_ASYNC:
29
- break;
30
- default:
31
- return -EINVAL;
32
- }
33
-
34
/*
35
* Write PR_MTE_TCF to SCTLR_EL1[TCF0].
36
- * Note that the syscall values are consistent with hw.
37
+ *
38
+ * The kernel has a per-cpu configuration for the sysadmin,
39
+ * /sys/devices/system/cpu/cpu<N>/mte_tcf_preferred,
40
+ * which qemu does not implement.
41
+ *
42
+ * Because there is no performance difference between the modes, and
43
+ * because SYNC is most useful for debugging MTE errors, choose SYNC
44
+ * as the preferred mode. With this preference, and the way the API
45
+ * uses only two bits, there is no way for the program to select
46
+ * ASYMM mode.
47
*/
48
- env->cp15.sctlr_el[1] =
49
- deposit64(env->cp15.sctlr_el[1], 38, 2, arg2 >> PR_MTE_TCF_SHIFT);
50
+ unsigned tcf = 0;
51
+ if (arg2 & PR_MTE_TCF_SYNC) {
52
+ tcf = 1;
53
+ } else if (arg2 & PR_MTE_TCF_ASYNC) {
54
+ tcf = 2;
55
+ }
56
+ env->cp15.sctlr_el[1] = deposit64(env->cp15.sctlr_el[1], 38, 2, tcf);
57
58
/*
59
* Write PR_MTE_TAG to GCR_EL1[Exclude].
60
--
61
2.34.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
The field is encoded as [0-3], which is convenient for
4
indexing our array of function pointers, but the true
5
value is [1-4]. Adjust before calling do_mem_zpa.
6
7
Add an assert, and move the comment re passing ZT to
8
the helper back next to the relevant code.
9
10
Cc: qemu-stable@nongnu.org
11
Fixes: 206adacfb8d ("target/arm: Add mte helpers for sve scalar + int loads")
12
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
13
Tested-by: Gustavo Romero <gustavo.romero@linaro.org>
14
Message-id: 20240207025210.8837-3-richard.henderson@linaro.org
15
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
16
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
17
---
18
target/arm/tcg/translate-sve.c | 16 ++++++++--------
19
1 file changed, 8 insertions(+), 8 deletions(-)
20
21
diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c
22
index XXXXXXX..XXXXXXX 100644
23
--- a/target/arm/tcg/translate-sve.c
24
+++ b/target/arm/tcg/translate-sve.c
25
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
26
TCGv_ptr t_pg;
27
int desc = 0;
28
29
- /*
30
- * For e.g. LD4, there are not enough arguments to pass all 4
31
- * registers as pointers, so encode the regno into the data field.
32
- * For consistency, do this even for LD1.
33
- */
34
+ assert(mte_n >= 1 && mte_n <= 4);
35
if (s->mte_active[0]) {
36
int msz = dtype_msz(dtype);
37
38
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
39
addr = clean_data_tbi(s, addr);
40
}
41
42
+ /*
43
+ * For e.g. LD4, there are not enough arguments to pass all 4
44
+ * registers as pointers, so encode the regno into the data field.
45
+ * For consistency, do this even for LD1.
46
+ */
47
desc = simd_desc(vsz, vsz, zt | desc);
48
t_pg = tcg_temp_new_ptr();
49
50
@@ -XXX,XX +XXX,XX @@ static void do_ld_zpa(DisasContext *s, int zt, int pg,
51
* accessible via the instruction encoding.
52
*/
53
assert(fn != NULL);
54
- do_mem_zpa(s, zt, pg, addr, dtype, nreg, false, fn);
55
+ do_mem_zpa(s, zt, pg, addr, dtype, nreg + 1, false, fn);
56
}
57
58
static bool trans_LD_zprr(DisasContext *s, arg_rprr_load *a)
59
@@ -XXX,XX +XXX,XX @@ static void do_st_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
60
if (nreg == 0) {
61
/* ST1 */
62
fn = fn_single[s->mte_active[0]][be][msz][esz];
63
- nreg = 1;
64
} else {
65
/* ST2, ST3, ST4 -- msz == esz, enforced by encoding */
66
assert(msz == esz);
67
fn = fn_multiple[s->mte_active[0]][be][nreg - 1][msz];
68
}
69
assert(fn != NULL);
70
- do_mem_zpa(s, zt, pg, addr, msz_dtype(s, msz), nreg, true, fn);
71
+ do_mem_zpa(s, zt, pg, addr, msz_dtype(s, msz), nreg + 1, true, fn);
72
}
73
74
static bool trans_ST_zprr(DisasContext *s, arg_rprr_store *a)
75
--
76
2.34.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
When we added SVE_MTEDESC_SHIFT, we effectively limited the
4
maximum size of MTEDESC. Adjust SIZEM1 to consume the remaining
5
bits (32 - 10 - 5 - 12 == 5). Assert that the data to be stored
6
fits within the field (expecting 8 * 4 - 1 == 31, exact fit).
7
8
Cc: qemu-stable@nongnu.org
9
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
11
Tested-by: Gustavo Romero <gustavo.romero@linaro.org>
12
Message-id: 20240207025210.8837-4-richard.henderson@linaro.org
13
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
14
---
15
target/arm/internals.h | 2 +-
16
target/arm/tcg/translate-sve.c | 7 ++++---
17
2 files changed, 5 insertions(+), 4 deletions(-)
18
19
diff --git a/target/arm/internals.h b/target/arm/internals.h
20
index XXXXXXX..XXXXXXX 100644
21
--- a/target/arm/internals.h
22
+++ b/target/arm/internals.h
23
@@ -XXX,XX +XXX,XX @@ FIELD(MTEDESC, TBI, 4, 2)
24
FIELD(MTEDESC, TCMA, 6, 2)
25
FIELD(MTEDESC, WRITE, 8, 1)
26
FIELD(MTEDESC, ALIGN, 9, 3)
27
-FIELD(MTEDESC, SIZEM1, 12, SIMD_DATA_BITS - 12) /* size - 1 */
28
+FIELD(MTEDESC, SIZEM1, 12, SIMD_DATA_BITS - SVE_MTEDESC_SHIFT - 12) /* size - 1 */
29
30
bool mte_probe(CPUARMState *env, uint32_t desc, uint64_t ptr);
31
uint64_t mte_check(CPUARMState *env, uint32_t desc, uint64_t ptr, uintptr_t ra);
32
diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c
33
index XXXXXXX..XXXXXXX 100644
34
--- a/target/arm/tcg/translate-sve.c
35
+++ b/target/arm/tcg/translate-sve.c
36
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
37
{
38
unsigned vsz = vec_full_reg_size(s);
39
TCGv_ptr t_pg;
40
+ uint32_t sizem1;
41
int desc = 0;
42
43
assert(mte_n >= 1 && mte_n <= 4);
44
+ sizem1 = (mte_n << dtype_msz(dtype)) - 1;
45
+ assert(sizem1 <= R_MTEDESC_SIZEM1_MASK >> R_MTEDESC_SIZEM1_SHIFT);
46
if (s->mte_active[0]) {
47
- int msz = dtype_msz(dtype);
48
-
49
desc = FIELD_DP32(desc, MTEDESC, MIDX, get_mem_index(s));
50
desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
51
desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
52
desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
53
- desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (mte_n << msz) - 1);
54
+ desc = FIELD_DP32(desc, MTEDESC, SIZEM1, sizem1);
55
desc <<= SVE_MTEDESC_SHIFT;
56
} else {
57
addr = clean_data_tbi(s, addr);
58
--
59
2.34.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
Share code that creates mtedesc and embeds within simd_desc.
4
5
Cc: qemu-stable@nongnu.org
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Tested-by: Gustavo Romero <gustavo.romero@linaro.org>
9
Message-id: 20240207025210.8837-5-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
12
target/arm/tcg/translate-a64.h | 2 ++
13
target/arm/tcg/translate-sme.c | 15 +++--------
14
target/arm/tcg/translate-sve.c | 47 ++++++++++++++++++----------------
15
3 files changed, 31 insertions(+), 33 deletions(-)
16
17
diff --git a/target/arm/tcg/translate-a64.h b/target/arm/tcg/translate-a64.h
18
index XXXXXXX..XXXXXXX 100644
19
--- a/target/arm/tcg/translate-a64.h
20
+++ b/target/arm/tcg/translate-a64.h
21
@@ -XXX,XX +XXX,XX @@ bool logic_imm_decode_wmask(uint64_t *result, unsigned int immn,
22
bool sve_access_check(DisasContext *s);
23
bool sme_enabled_check(DisasContext *s);
24
bool sme_enabled_check_with_svcr(DisasContext *s, unsigned);
25
+uint32_t make_svemte_desc(DisasContext *s, unsigned vsz, uint32_t nregs,
26
+ uint32_t msz, bool is_write, uint32_t data);
27
28
/* This function corresponds to CheckStreamingSVEEnabled. */
29
static inline bool sme_sm_enabled_check(DisasContext *s)
30
diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c
31
index XXXXXXX..XXXXXXX 100644
32
--- a/target/arm/tcg/translate-sme.c
33
+++ b/target/arm/tcg/translate-sme.c
34
@@ -XXX,XX +XXX,XX @@ static bool trans_LDST1(DisasContext *s, arg_LDST1 *a)
35
36
TCGv_ptr t_za, t_pg;
37
TCGv_i64 addr;
38
- int svl, desc = 0;
39
+ uint32_t desc;
40
bool be = s->be_data == MO_BE;
41
bool mte = s->mte_active[0];
42
43
@@ -XXX,XX +XXX,XX @@ static bool trans_LDST1(DisasContext *s, arg_LDST1 *a)
44
tcg_gen_shli_i64(addr, cpu_reg(s, a->rm), a->esz);
45
tcg_gen_add_i64(addr, addr, cpu_reg_sp(s, a->rn));
46
47
- if (mte) {
48
- desc = FIELD_DP32(desc, MTEDESC, MIDX, get_mem_index(s));
49
- desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
50
- desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
51
- desc = FIELD_DP32(desc, MTEDESC, WRITE, a->st);
52
- desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (1 << a->esz) - 1);
53
- desc <<= SVE_MTEDESC_SHIFT;
54
- } else {
55
+ if (!mte) {
56
addr = clean_data_tbi(s, addr);
57
}
58
- svl = streaming_vec_reg_size(s);
59
- desc = simd_desc(svl, svl, desc);
60
+
61
+ desc = make_svemte_desc(s, streaming_vec_reg_size(s), 1, a->esz, a->st, 0);
62
63
fns[a->esz][be][a->v][mte][a->st](tcg_env, t_za, t_pg, addr,
64
tcg_constant_i32(desc));
65
diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c
66
index XXXXXXX..XXXXXXX 100644
67
--- a/target/arm/tcg/translate-sve.c
68
+++ b/target/arm/tcg/translate-sve.c
69
@@ -XXX,XX +XXX,XX @@ static const uint8_t dtype_esz[16] = {
70
3, 2, 1, 3
71
};
72
73
-static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
74
- int dtype, uint32_t mte_n, bool is_write,
75
- gen_helper_gvec_mem *fn)
76
+uint32_t make_svemte_desc(DisasContext *s, unsigned vsz, uint32_t nregs,
77
+ uint32_t msz, bool is_write, uint32_t data)
78
{
79
- unsigned vsz = vec_full_reg_size(s);
80
- TCGv_ptr t_pg;
81
uint32_t sizem1;
82
- int desc = 0;
83
+ uint32_t desc = 0;
84
85
- assert(mte_n >= 1 && mte_n <= 4);
86
- sizem1 = (mte_n << dtype_msz(dtype)) - 1;
87
+ /* Assert all of the data fits, with or without MTE enabled. */
88
+ assert(nregs >= 1 && nregs <= 4);
89
+ sizem1 = (nregs << msz) - 1;
90
assert(sizem1 <= R_MTEDESC_SIZEM1_MASK >> R_MTEDESC_SIZEM1_SHIFT);
91
+ assert(data < 1u << SVE_MTEDESC_SHIFT);
92
+
93
if (s->mte_active[0]) {
94
desc = FIELD_DP32(desc, MTEDESC, MIDX, get_mem_index(s));
95
desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
96
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
97
desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
98
desc = FIELD_DP32(desc, MTEDESC, SIZEM1, sizem1);
99
desc <<= SVE_MTEDESC_SHIFT;
100
- } else {
101
+ }
102
+ return simd_desc(vsz, vsz, desc | data);
103
+}
104
+
105
+static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
106
+ int dtype, uint32_t nregs, bool is_write,
107
+ gen_helper_gvec_mem *fn)
108
+{
109
+ TCGv_ptr t_pg;
110
+ uint32_t desc;
111
+
112
+ if (!s->mte_active[0]) {
113
addr = clean_data_tbi(s, addr);
114
}
115
116
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpa(DisasContext *s, int zt, int pg, TCGv_i64 addr,
117
* registers as pointers, so encode the regno into the data field.
118
* For consistency, do this even for LD1.
119
*/
120
- desc = simd_desc(vsz, vsz, zt | desc);
121
+ desc = make_svemte_desc(s, vec_full_reg_size(s), nregs,
122
+ dtype_msz(dtype), is_write, zt);
123
t_pg = tcg_temp_new_ptr();
124
125
tcg_gen_addi_ptr(t_pg, tcg_env, pred_full_reg_offset(s, pg));
126
@@ -XXX,XX +XXX,XX @@ static void do_mem_zpz(DisasContext *s, int zt, int pg, int zm,
127
int scale, TCGv_i64 scalar, int msz, bool is_write,
128
gen_helper_gvec_mem_scatter *fn)
129
{
130
- unsigned vsz = vec_full_reg_size(s);
131
TCGv_ptr t_zm = tcg_temp_new_ptr();
132
TCGv_ptr t_pg = tcg_temp_new_ptr();
133
TCGv_ptr t_zt = tcg_temp_new_ptr();
134
- int desc = 0;
135
-
136
- if (s->mte_active[0]) {
137
- desc = FIELD_DP32(desc, MTEDESC, MIDX, get_mem_index(s));
138
- desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
139
- desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
140
- desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
141
- desc = FIELD_DP32(desc, MTEDESC, SIZEM1, (1 << msz) - 1);
142
- desc <<= SVE_MTEDESC_SHIFT;
143
- }
144
- desc = simd_desc(vsz, vsz, desc | scale);
145
+ uint32_t desc;
146
147
tcg_gen_addi_ptr(t_pg, tcg_env, pred_full_reg_offset(s, pg));
148
tcg_gen_addi_ptr(t_zm, tcg_env, vec_full_reg_offset(s, zm));
149
tcg_gen_addi_ptr(t_zt, tcg_env, vec_full_reg_offset(s, zt));
150
+
151
+ desc = make_svemte_desc(s, vec_full_reg_size(s), 1, msz, is_write, scale);
152
fn(tcg_env, t_zt, t_pg, t_zm, scalar, tcg_constant_i32(desc));
153
}
154
155
--
156
2.34.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
These functions "use the standard load helpers", but
4
fail to clean_data_tbi or populate mtedesc.
5
6
Cc: qemu-stable@nongnu.org
7
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
8
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
9
Tested-by: Gustavo Romero <gustavo.romero@linaro.org>
10
Message-id: 20240207025210.8837-6-richard.henderson@linaro.org
11
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
12
---
13
target/arm/tcg/translate-sve.c | 15 +++++++++++++--
14
1 file changed, 13 insertions(+), 2 deletions(-)
15
16
diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c
17
index XXXXXXX..XXXXXXX 100644
18
--- a/target/arm/tcg/translate-sve.c
19
+++ b/target/arm/tcg/translate-sve.c
20
@@ -XXX,XX +XXX,XX @@ static void do_ldrq(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
21
unsigned vsz = vec_full_reg_size(s);
22
TCGv_ptr t_pg;
23
int poff;
24
+ uint32_t desc;
25
26
/* Load the first quadword using the normal predicated load helpers. */
27
+ if (!s->mte_active[0]) {
28
+ addr = clean_data_tbi(s, addr);
29
+ }
30
+
31
poff = pred_full_reg_offset(s, pg);
32
if (vsz > 16) {
33
/*
34
@@ -XXX,XX +XXX,XX @@ static void do_ldrq(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
35
36
gen_helper_gvec_mem *fn
37
= ldr_fns[s->mte_active[0]][s->be_data == MO_BE][dtype][0];
38
- fn(tcg_env, t_pg, addr, tcg_constant_i32(simd_desc(16, 16, zt)));
39
+ desc = make_svemte_desc(s, 16, 1, dtype_msz(dtype), false, zt);
40
+ fn(tcg_env, t_pg, addr, tcg_constant_i32(desc));
41
42
/* Replicate that first quadword. */
43
if (vsz > 16) {
44
@@ -XXX,XX +XXX,XX @@ static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
45
unsigned vsz_r32;
46
TCGv_ptr t_pg;
47
int poff, doff;
48
+ uint32_t desc;
49
50
if (vsz < 32) {
51
/*
52
@@ -XXX,XX +XXX,XX @@ static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
53
}
54
55
/* Load the first octaword using the normal predicated load helpers. */
56
+ if (!s->mte_active[0]) {
57
+ addr = clean_data_tbi(s, addr);
58
+ }
59
60
poff = pred_full_reg_offset(s, pg);
61
if (vsz > 32) {
62
@@ -XXX,XX +XXX,XX @@ static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
63
64
gen_helper_gvec_mem *fn
65
= ldr_fns[s->mte_active[0]][s->be_data == MO_BE][dtype][0];
66
- fn(tcg_env, t_pg, addr, tcg_constant_i32(simd_desc(32, 32, zt)));
67
+ desc = make_svemte_desc(s, 32, 1, dtype_msz(dtype), false, zt);
68
+ fn(tcg_env, t_pg, addr, tcg_constant_i32(desc));
69
70
/*
71
* Replicate that first octaword.
72
--
73
2.34.1
diff view generated by jsdifflib
New patch
1
From: Richard Henderson <richard.henderson@linaro.org>
1
2
3
The TBI and TCMA bits are located within mtedesc, not desc.
4
5
Cc: qemu-stable@nongnu.org
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
8
Tested-by: Gustavo Romero <gustavo.romero@linaro.org>
9
Message-id: 20240207025210.8837-7-richard.henderson@linaro.org
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
---
12
target/arm/tcg/sme_helper.c | 8 ++++----
13
target/arm/tcg/sve_helper.c | 12 ++++++------
14
2 files changed, 10 insertions(+), 10 deletions(-)
15
16
diff --git a/target/arm/tcg/sme_helper.c b/target/arm/tcg/sme_helper.c
17
index XXXXXXX..XXXXXXX 100644
18
--- a/target/arm/tcg/sme_helper.c
19
+++ b/target/arm/tcg/sme_helper.c
20
@@ -XXX,XX +XXX,XX @@ void sme_ld1_mte(CPUARMState *env, void *za, uint64_t *vg,
21
desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT);
22
23
/* Perform gross MTE suppression early. */
24
- if (!tbi_check(desc, bit55) ||
25
- tcma_check(desc, bit55, allocation_tag_from_addr(addr))) {
26
+ if (!tbi_check(mtedesc, bit55) ||
27
+ tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) {
28
mtedesc = 0;
29
}
30
31
@@ -XXX,XX +XXX,XX @@ void sme_st1_mte(CPUARMState *env, void *za, uint64_t *vg, target_ulong addr,
32
desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT);
33
34
/* Perform gross MTE suppression early. */
35
- if (!tbi_check(desc, bit55) ||
36
- tcma_check(desc, bit55, allocation_tag_from_addr(addr))) {
37
+ if (!tbi_check(mtedesc, bit55) ||
38
+ tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) {
39
mtedesc = 0;
40
}
41
42
diff --git a/target/arm/tcg/sve_helper.c b/target/arm/tcg/sve_helper.c
43
index XXXXXXX..XXXXXXX 100644
44
--- a/target/arm/tcg/sve_helper.c
45
+++ b/target/arm/tcg/sve_helper.c
46
@@ -XXX,XX +XXX,XX @@ void sve_ldN_r_mte(CPUARMState *env, uint64_t *vg, target_ulong addr,
47
desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT);
48
49
/* Perform gross MTE suppression early. */
50
- if (!tbi_check(desc, bit55) ||
51
- tcma_check(desc, bit55, allocation_tag_from_addr(addr))) {
52
+ if (!tbi_check(mtedesc, bit55) ||
53
+ tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) {
54
mtedesc = 0;
55
}
56
57
@@ -XXX,XX +XXX,XX @@ void sve_ldnfff1_r_mte(CPUARMState *env, void *vg, target_ulong addr,
58
desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT);
59
60
/* Perform gross MTE suppression early. */
61
- if (!tbi_check(desc, bit55) ||
62
- tcma_check(desc, bit55, allocation_tag_from_addr(addr))) {
63
+ if (!tbi_check(mtedesc, bit55) ||
64
+ tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) {
65
mtedesc = 0;
66
}
67
68
@@ -XXX,XX +XXX,XX @@ void sve_stN_r_mte(CPUARMState *env, uint64_t *vg, target_ulong addr,
69
desc = extract32(desc, 0, SIMD_DATA_SHIFT + SVE_MTEDESC_SHIFT);
70
71
/* Perform gross MTE suppression early. */
72
- if (!tbi_check(desc, bit55) ||
73
- tcma_check(desc, bit55, allocation_tag_from_addr(addr))) {
74
+ if (!tbi_check(mtedesc, bit55) ||
75
+ tcma_check(mtedesc, bit55, allocation_tag_from_addr(addr))) {
76
mtedesc = 0;
77
}
78
79
--
80
2.34.1
diff view generated by jsdifflib
New patch
1
The raven_io_ops MemoryRegionOps is the only one in the source tree
2
which sets .valid.unaligned to indicate that it should support
3
unaligned accesses and which does not also set .impl.unaligned to
4
indicate that its read and write functions can do the unaligned
5
handling themselves. This is a problem, because at the moment the
6
core memory system does not implement the support for handling
7
unaligned accesses by doing a series of aligned accesses and
8
combining them (system/memory.c:access_with_adjusted_size() has a
9
TODO comment noting this).
1
10
11
Fortunately raven_io_read() and raven_io_write() will correctly deal
12
with the case of being passed an unaligned address, so we can fix the
13
missing unaligned access support by setting .impl.unaligned in the
14
MemoryRegionOps struct.
15
16
Fixes: 9a1839164c9c8f06 ("raven: Implement non-contiguous I/O region")
17
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
18
Tested-by: Cédric Le Goater <clg@redhat.com>
19
Reviewed-by: Cédric Le Goater <clg@redhat.com>
20
Message-id: 20240112134640.1775041-1-peter.maydell@linaro.org
21
---
22
hw/pci-host/raven.c | 1 +
23
1 file changed, 1 insertion(+)
24
25
diff --git a/hw/pci-host/raven.c b/hw/pci-host/raven.c
26
index XXXXXXX..XXXXXXX 100644
27
--- a/hw/pci-host/raven.c
28
+++ b/hw/pci-host/raven.c
29
@@ -XXX,XX +XXX,XX @@ static const MemoryRegionOps raven_io_ops = {
30
.write = raven_io_write,
31
.endianness = DEVICE_LITTLE_ENDIAN,
32
.impl.max_access_size = 4,
33
+ .impl.unaligned = true,
34
.valid.unaligned = true,
35
};
36
37
--
38
2.34.1
39
40
diff view generated by jsdifflib
1
If we're directly booting a Linux kernel and the CPU supports both
1
Suppress the deprecation warning when we're running under qtest,
2
EL3 and EL2, we start the kernel in EL2, as it expects. We must also
2
to avoid "make check" including warning messages in its output.
3
set the SCR_EL3.HCE bit in this situation, so that the HVC
4
instruction is enabled rather than UNDEFing. Otherwise at least some
5
kernels will panic when trying to initialize KVM in the guest.
6
3
7
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
4
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8
Message-id: 20180313153458.26822-4-peter.maydell@linaro.org
5
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
6
Message-id: 20240206154151.155620-1-peter.maydell@linaro.org
9
---
7
---
10
hw/arm/boot.c | 5 +++++
8
hw/block/tc58128.c | 4 +++-
11
1 file changed, 5 insertions(+)
9
1 file changed, 3 insertions(+), 1 deletion(-)
12
10
13
diff --git a/hw/arm/boot.c b/hw/arm/boot.c
11
diff --git a/hw/block/tc58128.c b/hw/block/tc58128.c
14
index XXXXXXX..XXXXXXX 100644
12
index XXXXXXX..XXXXXXX 100644
15
--- a/hw/arm/boot.c
13
--- a/hw/block/tc58128.c
16
+++ b/hw/arm/boot.c
14
+++ b/hw/block/tc58128.c
17
@@ -XXX,XX +XXX,XX @@ static void do_cpu_reset(void *opaque)
15
@@ -XXX,XX +XXX,XX @@ static sh7750_io_device tc58128 = {
18
assert(!info->secure_board_setup);
16
19
}
17
int tc58128_init(struct SH7750State *s, const char *zone1, const char *zone2)
20
18
{
21
+ if (arm_feature(env, ARM_FEATURE_EL2)) {
19
- warn_report_once("The TC58128 flash device is deprecated");
22
+ /* If we have EL2 then Linux expects the HVC insn to work */
20
+ if (!qtest_enabled()) {
23
+ env->cp15.scr_el3 |= SCR_HCE;
21
+ warn_report_once("The TC58128 flash device is deprecated");
24
+ }
22
+ }
25
+
23
init_dev(&tc58128_devs[0], zone1);
26
/* Set to non-secure if not a secure boot */
24
init_dev(&tc58128_devs[1], zone2);
27
if (!info->secure_boot &&
25
return sh7750_register_io_device(s, &tc58128);
28
(cs != first_cpu || !info->secure_board_setup)) {
29
--
26
--
30
2.16.2
27
2.34.1
31
28
32
29
diff view generated by jsdifflib
New patch
1
We deliberately don't include qtests_npcm7xx in qtests_aarch64,
2
because we already get the coverage of those tests via qtests_arm,
3
and we don't want to use extra CI minutes testing them twice.
1
4
5
In commit 327b680877b79c4b we added it to qtests_aarch64; revert
6
that change.
7
8
Fixes: 327b680877b79c4b ("tests/qtest: Creating qtest for GMAC Module")
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
11
Message-id: 20240206163043.315535-1-peter.maydell@linaro.org
12
---
13
tests/qtest/meson.build | 1 -
14
1 file changed, 1 deletion(-)
15
16
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
17
index XXXXXXX..XXXXXXX 100644
18
--- a/tests/qtest/meson.build
19
+++ b/tests/qtest/meson.build
20
@@ -XXX,XX +XXX,XX @@ qtests_aarch64 = \
21
(config_all_devices.has_key('CONFIG_RASPI') ? ['bcm2835-dma-test'] : []) + \
22
(config_all_accel.has_key('CONFIG_TCG') and \
23
config_all_devices.has_key('CONFIG_TPM_TIS_I2C') ? ['tpm-tis-i2c-test'] : []) + \
24
- (config_all_devices.has_key('CONFIG_NPCM7XX') ? qtests_npcm7xx : []) + \
25
['arm-cpu-features',
26
'numa-test',
27
'boot-serial-test',
28
--
29
2.34.1
30
31
diff view generated by jsdifflib
New patch
1
Allow changes to the virt GTDT -- we are going to add the IRQ
2
entry for a new timer to it.
1
3
4
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
6
Message-id: 20240122143537.233498-2-peter.maydell@linaro.org
7
---
8
tests/qtest/bios-tables-test-allowed-diff.h | 2 ++
9
1 file changed, 2 insertions(+)
10
11
diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h
12
index XXXXXXX..XXXXXXX 100644
13
--- a/tests/qtest/bios-tables-test-allowed-diff.h
14
+++ b/tests/qtest/bios-tables-test-allowed-diff.h
15
@@ -1 +1,3 @@
16
/* List of comma-separated changed AML files to ignore */
17
+"tests/data/acpi/virt/FACP",
18
+"tests/data/acpi/virt/GTDT",
19
--
20
2.34.1
diff view generated by jsdifflib
New patch
1
1
Armv8.1+ CPUs have the Virtual Host Extension (VHE) which adds a
2
non-secure EL2 virtual timer. We implemented the timer itself in the
3
CPU model, but never wired up its IRQ line to the GIC.
4
5
Wire up the IRQ line (this is always safe whether the CPU has the
6
interrupt or not, since it always creates the outbound IRQ line).
7
Report it to the guest via dtb and ACPI if the CPU has the feature.
8
9
The DTB binding is documented in the kernel's
10
Documentation/devicetree/bindings/timer/arm\,arch_timer.yaml
11
and the ACPI table entries are documented in the ACPI specification
12
version 6.3 or later.
13
14
Because the IRQ line ACPI binding is new in 6.3, we need to bump the
15
FADT table rev to show that we might be using 6.3 features.
16
17
Note that exposing this IRQ in the DTB will trigger a bug in EDK2
18
versions prior to edk2-stable202311, for users who use the virt board
19
with 'virtualization=on' to enable EL2 emulation and are booting an
20
EDK2 guest BIOS, if that EDK2 has assertions enabled. The effect is
21
that EDK2 will assert on bootup:
22
23
ASSERT [ArmTimerDxe] /home/kraxel/projects/qemu/roms/edk2/ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.c(72): PropSize == 36 || PropSize == 48
24
25
If you see that assertion you should do one of:
26
* update your EDK2 binaries to edk2-stable202311 or newer
27
* use the 'virt-8.2' versioned machine type
28
* not use 'virtualization=on'
29
30
(The versions shipped with QEMU itself have the fix.)
31
32
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
33
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
34
Message-id: 20240122143537.233498-3-peter.maydell@linaro.org
35
---
36
include/hw/arm/virt.h | 2 ++
37
hw/arm/virt-acpi-build.c | 20 ++++++++++----
38
hw/arm/virt.c | 60 ++++++++++++++++++++++++++++++++++------
39
3 files changed, 67 insertions(+), 15 deletions(-)
40
41
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
42
index XXXXXXX..XXXXXXX 100644
43
--- a/include/hw/arm/virt.h
44
+++ b/include/hw/arm/virt.h
45
@@ -XXX,XX +XXX,XX @@ struct VirtMachineClass {
46
/* Machines < 6.2 have no support for describing cpu topology to guest */
47
bool no_cpu_topology;
48
bool no_tcg_lpa2;
49
+ bool no_ns_el2_virt_timer_irq;
50
};
51
52
struct VirtMachineState {
53
@@ -XXX,XX +XXX,XX @@ struct VirtMachineState {
54
PCIBus *bus;
55
char *oem_id;
56
char *oem_table_id;
57
+ bool ns_el2_virt_timer_irq;
58
};
59
60
#define VIRT_ECAM_ID(high) (high ? VIRT_HIGH_PCIE_ECAM : VIRT_PCIE_ECAM)
61
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
62
index XXXXXXX..XXXXXXX 100644
63
--- a/hw/arm/virt-acpi-build.c
64
+++ b/hw/arm/virt-acpi-build.c
65
@@ -XXX,XX +XXX,XX @@ build_srat(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
66
}
67
68
/*
69
- * ACPI spec, Revision 5.1
70
- * 5.2.24 Generic Timer Description Table (GTDT)
71
+ * ACPI spec, Revision 6.5
72
+ * 5.2.25 Generic Timer Description Table (GTDT)
73
*/
74
static void
75
build_gtdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
76
@@ -XXX,XX +XXX,XX @@ build_gtdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
77
uint32_t irqflags = vmc->claim_edge_triggered_timers ?
78
1 : /* Interrupt is Edge triggered */
79
0; /* Interrupt is Level triggered */
80
- AcpiTable table = { .sig = "GTDT", .rev = 2, .oem_id = vms->oem_id,
81
+ AcpiTable table = { .sig = "GTDT", .rev = 3, .oem_id = vms->oem_id,
82
.oem_table_id = vms->oem_table_id };
83
84
acpi_table_begin(&table, table_data);
85
@@ -XXX,XX +XXX,XX @@ build_gtdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
86
build_append_int_noprefix(table_data, 0, 4);
87
/* Platform Timer Offset */
88
build_append_int_noprefix(table_data, 0, 4);
89
-
90
+ if (vms->ns_el2_virt_timer_irq) {
91
+ /* Virtual EL2 Timer GSIV */
92
+ build_append_int_noprefix(table_data, ARCH_TIMER_NS_EL2_VIRT_IRQ, 4);
93
+ /* Virtual EL2 Timer Flags */
94
+ build_append_int_noprefix(table_data, irqflags, 4);
95
+ } else {
96
+ build_append_int_noprefix(table_data, 0, 4);
97
+ build_append_int_noprefix(table_data, 0, 4);
98
+ }
99
acpi_table_end(linker, &table);
100
}
101
102
@@ -XXX,XX +XXX,XX @@ build_madt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
103
static void build_fadt_rev6(GArray *table_data, BIOSLinker *linker,
104
VirtMachineState *vms, unsigned dsdt_tbl_offset)
105
{
106
- /* ACPI v6.0 */
107
+ /* ACPI v6.3 */
108
AcpiFadtData fadt = {
109
.rev = 6,
110
- .minor_ver = 0,
111
+ .minor_ver = 3,
112
.flags = 1 << ACPI_FADT_F_HW_REDUCED_ACPI,
113
.xdsdt_tbl_offset = &dsdt_tbl_offset,
114
};
115
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
116
index XXXXXXX..XXXXXXX 100644
117
--- a/hw/arm/virt.c
118
+++ b/hw/arm/virt.c
119
@@ -XXX,XX +XXX,XX @@ static void create_randomness(MachineState *ms, const char *node)
120
qemu_fdt_setprop(ms->fdt, node, "rng-seed", seed.rng, sizeof(seed.rng));
121
}
122
123
+/*
124
+ * The CPU object always exposes the NS EL2 virt timer IRQ line,
125
+ * but we don't want to advertise it to the guest in the dtb or ACPI
126
+ * table unless it's really going to do something.
127
+ */
128
+static bool ns_el2_virt_timer_present(void)
129
+{
130
+ ARMCPU *cpu = ARM_CPU(qemu_get_cpu(0));
131
+ CPUARMState *env = &cpu->env;
132
+
133
+ return arm_feature(env, ARM_FEATURE_AARCH64) &&
134
+ arm_feature(env, ARM_FEATURE_EL2) && cpu_isar_feature(aa64_vh, cpu);
135
+}
136
+
137
static void create_fdt(VirtMachineState *vms)
138
{
139
MachineState *ms = MACHINE(vms);
140
@@ -XXX,XX +XXX,XX @@ static void fdt_add_timer_nodes(const VirtMachineState *vms)
141
"arm,armv7-timer");
142
}
143
qemu_fdt_setprop(ms->fdt, "/timer", "always-on", NULL, 0);
144
- qemu_fdt_setprop_cells(ms->fdt, "/timer", "interrupts",
145
- GIC_FDT_IRQ_TYPE_PPI,
146
- INTID_TO_PPI(ARCH_TIMER_S_EL1_IRQ), irqflags,
147
- GIC_FDT_IRQ_TYPE_PPI,
148
- INTID_TO_PPI(ARCH_TIMER_NS_EL1_IRQ), irqflags,
149
- GIC_FDT_IRQ_TYPE_PPI,
150
- INTID_TO_PPI(ARCH_TIMER_VIRT_IRQ), irqflags,
151
- GIC_FDT_IRQ_TYPE_PPI,
152
- INTID_TO_PPI(ARCH_TIMER_NS_EL2_IRQ), irqflags);
153
+ if (vms->ns_el2_virt_timer_irq) {
154
+ qemu_fdt_setprop_cells(ms->fdt, "/timer", "interrupts",
155
+ GIC_FDT_IRQ_TYPE_PPI,
156
+ INTID_TO_PPI(ARCH_TIMER_S_EL1_IRQ), irqflags,
157
+ GIC_FDT_IRQ_TYPE_PPI,
158
+ INTID_TO_PPI(ARCH_TIMER_NS_EL1_IRQ), irqflags,
159
+ GIC_FDT_IRQ_TYPE_PPI,
160
+ INTID_TO_PPI(ARCH_TIMER_VIRT_IRQ), irqflags,
161
+ GIC_FDT_IRQ_TYPE_PPI,
162
+ INTID_TO_PPI(ARCH_TIMER_NS_EL2_IRQ), irqflags,
163
+ GIC_FDT_IRQ_TYPE_PPI,
164
+ INTID_TO_PPI(ARCH_TIMER_NS_EL2_VIRT_IRQ), irqflags);
165
+ } else {
166
+ qemu_fdt_setprop_cells(ms->fdt, "/timer", "interrupts",
167
+ GIC_FDT_IRQ_TYPE_PPI,
168
+ INTID_TO_PPI(ARCH_TIMER_S_EL1_IRQ), irqflags,
169
+ GIC_FDT_IRQ_TYPE_PPI,
170
+ INTID_TO_PPI(ARCH_TIMER_NS_EL1_IRQ), irqflags,
171
+ GIC_FDT_IRQ_TYPE_PPI,
172
+ INTID_TO_PPI(ARCH_TIMER_VIRT_IRQ), irqflags,
173
+ GIC_FDT_IRQ_TYPE_PPI,
174
+ INTID_TO_PPI(ARCH_TIMER_NS_EL2_IRQ), irqflags);
175
+ }
176
}
177
178
static void fdt_add_cpu_nodes(const VirtMachineState *vms)
179
@@ -XXX,XX +XXX,XX @@ static void create_gic(VirtMachineState *vms, MemoryRegion *mem)
180
[GTIMER_VIRT] = ARCH_TIMER_VIRT_IRQ,
181
[GTIMER_HYP] = ARCH_TIMER_NS_EL2_IRQ,
182
[GTIMER_SEC] = ARCH_TIMER_S_EL1_IRQ,
183
+ [GTIMER_HYPVIRT] = ARCH_TIMER_NS_EL2_VIRT_IRQ,
184
};
185
186
for (unsigned irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) {
187
@@ -XXX,XX +XXX,XX @@ static void machvirt_init(MachineState *machine)
188
qdev_realize(DEVICE(cpuobj), NULL, &error_fatal);
189
object_unref(cpuobj);
190
}
191
+
192
+ /* Now we've created the CPUs we can see if they have the hypvirt timer */
193
+ vms->ns_el2_virt_timer_irq = ns_el2_virt_timer_present() &&
194
+ !vmc->no_ns_el2_virt_timer_irq;
195
+
196
fdt_add_timer_nodes(vms);
197
fdt_add_cpu_nodes(vms);
198
199
@@ -XXX,XX +XXX,XX @@ DEFINE_VIRT_MACHINE_AS_LATEST(9, 0)
200
201
static void virt_machine_8_2_options(MachineClass *mc)
202
{
203
+ VirtMachineClass *vmc = VIRT_MACHINE_CLASS(OBJECT_CLASS(mc));
204
+
205
virt_machine_9_0_options(mc);
206
compat_props_add(mc->compat_props, hw_compat_8_2, hw_compat_8_2_len);
207
+ /*
208
+ * Don't expose NS_EL2_VIRT timer IRQ in DTB on ACPI on 8.2 and
209
+ * earlier machines. (Exposing it tickles a bug in older EDK2
210
+ * guest BIOS binaries.)
211
+ */
212
+ vmc->no_ns_el2_virt_timer_irq = true;
213
}
214
DEFINE_VIRT_MACHINE(8, 2)
215
216
--
217
2.34.1
diff view generated by jsdifflib
New patch
1
1
Update the virt golden reference files to say that the FACP is ACPI
2
v6.3, and the GTDT table is a revision 3 table with space for the
3
virtual EL2 timer.
4
5
Diffs from iasl:
6
7
@@ -XXX,XX +XXX,XX @@
8
/*
9
* Intel ACPI Component Architecture
10
* AML/ASL+ Disassembler version 20200925 (64-bit version)
11
* Copyright (c) 2000 - 2020 Intel Corporation
12
*
13
- * Disassembly of tests/data/acpi/virt/FACP, Mon Jan 22 13:48:40 2024
14
+ * Disassembly of /tmp/aml-W8RZH2, Mon Jan 22 13:48:40 2024
15
*
16
* ACPI Data Table [FACP]
17
*
18
* Format: [HexOffset DecimalOffset ByteLength] FieldName : FieldValue
19
*/
20
21
[000h 0000 4] Signature : "FACP" [Fixed ACPI Description Table (FADT)]
22
[004h 0004 4] Table Length : 00000114
23
[008h 0008 1] Revision : 06
24
-[009h 0009 1] Checksum : 15
25
+[009h 0009 1] Checksum : 12
26
[00Ah 0010 6] Oem ID : "BOCHS "
27
[010h 0016 8] Oem Table ID : "BXPC "
28
[018h 0024 4] Oem Revision : 00000001
29
[01Ch 0028 4] Asl Compiler ID : "BXPC"
30
[020h 0032 4] Asl Compiler Revision : 00000001
31
32
[024h 0036 4] FACS Address : 00000000
33
[028h 0040 4] DSDT Address : 00000000
34
[02Ch 0044 1] Model : 00
35
[02Dh 0045 1] PM Profile : 00 [Unspecified]
36
[02Eh 0046 2] SCI Interrupt : 0000
37
[030h 0048 4] SMI Command Port : 00000000
38
[034h 0052 1] ACPI Enable Value : 00
39
[035h 0053 1] ACPI Disable Value : 00
40
[036h 0054 1] S4BIOS Command : 00
41
[037h 0055 1] P-State Control : 00
42
@@ -XXX,XX +XXX,XX @@
43
Use APIC Physical Destination Mode (V4) : 0
44
Hardware Reduced (V5) : 1
45
Low Power S0 Idle (V5) : 0
46
47
[074h 0116 12] Reset Register : [Generic Address Structure]
48
[074h 0116 1] Space ID : 00 [SystemMemory]
49
[075h 0117 1] Bit Width : 00
50
[076h 0118 1] Bit Offset : 00
51
[077h 0119 1] Encoded Access Width : 00 [Undefined/Legacy]
52
[078h 0120 8] Address : 0000000000000000
53
54
[080h 0128 1] Value to cause reset : 00
55
[081h 0129 2] ARM Flags (decoded below) : 0003
56
PSCI Compliant : 1
57
Must use HVC for PSCI : 1
58
59
-[083h 0131 1] FADT Minor Revision : 00
60
+[083h 0131 1] FADT Minor Revision : 03
61
[084h 0132 8] FACS Address : 0000000000000000
62
[08Ch 0140 8] DSDT Address : 0000000000000000
63
[094h 0148 12] PM1A Event Block : [Generic Address Structure]
64
[094h 0148 1] Space ID : 00 [SystemMemory]
65
[095h 0149 1] Bit Width : 00
66
[096h 0150 1] Bit Offset : 00
67
[097h 0151 1] Encoded Access Width : 00 [Undefined/Legacy]
68
[098h 0152 8] Address : 0000000000000000
69
70
[0A0h 0160 12] PM1B Event Block : [Generic Address Structure]
71
[0A0h 0160 1] Space ID : 00 [SystemMemory]
72
[0A1h 0161 1] Bit Width : 00
73
[0A2h 0162 1] Bit Offset : 00
74
[0A3h 0163 1] Encoded Access Width : 00 [Undefined/Legacy]
75
[0A4h 0164 8] Address : 0000000000000000
76
77
@@ -XXX,XX +XXX,XX @@
78
[0F5h 0245 1] Bit Width : 00
79
[0F6h 0246 1] Bit Offset : 00
80
[0F7h 0247 1] Encoded Access Width : 00 [Undefined/Legacy]
81
[0F8h 0248 8] Address : 0000000000000000
82
83
[100h 0256 12] Sleep Status Register : [Generic Address Structure]
84
[100h 0256 1] Space ID : 00 [SystemMemory]
85
[101h 0257 1] Bit Width : 00
86
[102h 0258 1] Bit Offset : 00
87
[103h 0259 1] Encoded Access Width : 00 [Undefined/Legacy]
88
[104h 0260 8] Address : 0000000000000000
89
90
[10Ch 0268 8] Hypervisor ID : 00000000554D4551
91
92
Raw Table Data: Length 276 (0x114)
93
94
- 0000: 46 41 43 50 14 01 00 00 06 15 42 4F 43 48 53 20 // FACP......BOCHS
95
+ 0000: 46 41 43 50 14 01 00 00 06 12 42 4F 43 48 53 20 // FACP......BOCHS
96
0010: 42 58 50 43 20 20 20 20 01 00 00 00 42 58 50 43 // BXPC ....BXPC
97
0020: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
98
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
99
0040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
100
0050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
101
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
102
0070: 00 00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
103
- 0080: 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
104
+ 0080: 00 03 00 03 00 00 00 00 00 00 00 00 00 00 00 00 // ................
105
0090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
106
00A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
107
00B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
108
00C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
109
00D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
110
00E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
111
00F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // ................
112
0100: 00 00 00 00 00 00 00 00 00 00 00 00 51 45 4D 55 // ............QEMU
113
0110: 00 00 00 00 // ....
114
115
@@ -XXX,XX +XXX,XX @@
116
/*
117
* Intel ACPI Component Architecture
118
* AML/ASL+ Disassembler version 20200925 (64-bit version)
119
* Copyright (c) 2000 - 2020 Intel Corporation
120
*
121
- * Disassembly of tests/data/acpi/virt/GTDT, Mon Jan 22 13:48:40 2024
122
+ * Disassembly of /tmp/aml-XDSZH2, Mon Jan 22 13:48:40 2024
123
*
124
* ACPI Data Table [GTDT]
125
*
126
* Format: [HexOffset DecimalOffset ByteLength] FieldName : FieldValue
127
*/
128
129
[000h 0000 4] Signature : "GTDT" [Generic Timer Description Table]
130
-[004h 0004 4] Table Length : 00000060
131
-[008h 0008 1] Revision : 02
132
-[009h 0009 1] Checksum : 9C
133
+[004h 0004 4] Table Length : 00000068
134
+[008h 0008 1] Revision : 03
135
+[009h 0009 1] Checksum : 93
136
[00Ah 0010 6] Oem ID : "BOCHS "
137
[010h 0016 8] Oem Table ID : "BXPC "
138
[018h 0024 4] Oem Revision : 00000001
139
[01Ch 0028 4] Asl Compiler ID : "BXPC"
140
[020h 0032 4] Asl Compiler Revision : 00000001
141
142
[024h 0036 8] Counter Block Address : FFFFFFFFFFFFFFFF
143
[02Ch 0044 4] Reserved : 00000000
144
145
[030h 0048 4] Secure EL1 Interrupt : 0000001D
146
[034h 0052 4] EL1 Flags (decoded below) : 00000000
147
Trigger Mode : 0
148
Polarity : 0
149
Always On : 0
150
151
[038h 0056 4] Non-Secure EL1 Interrupt : 0000001E
152
@@ -XXX,XX +XXX,XX @@
153
154
[040h 0064 4] Virtual Timer Interrupt : 0000001B
155
[044h 0068 4] VT Flags (decoded below) : 00000000
156
Trigger Mode : 0
157
Polarity : 0
158
Always On : 0
159
160
[048h 0072 4] Non-Secure EL2 Interrupt : 0000001A
161
[04Ch 0076 4] NEL2 Flags (decoded below) : 00000000
162
Trigger Mode : 0
163
Polarity : 0
164
Always On : 0
165
[050h 0080 8] Counter Read Block Address : FFFFFFFFFFFFFFFF
166
167
[058h 0088 4] Platform Timer Count : 00000000
168
[05Ch 0092 4] Platform Timer Offset : 00000000
169
+[060h 0096 4] Virtual EL2 Timer GSIV : 00000000
170
+[064h 0100 4] Virtual EL2 Timer Flags : 00000000
171
172
-Raw Table Data: Length 96 (0x60)
173
+Raw Table Data: Length 104 (0x68)
174
175
- 0000: 47 54 44 54 60 00 00 00 02 9C 42 4F 43 48 53 20 // GTDT`.....BOCHS
176
+ 0000: 47 54 44 54 68 00 00 00 03 93 42 4F 43 48 53 20 // GTDTh.....BOCHS
177
0010: 42 58 50 43 20 20 20 20 01 00 00 00 42 58 50 43 // BXPC ....BXPC
178
0020: 01 00 00 00 FF FF FF FF FF FF FF FF 00 00 00 00 // ................
179
0030: 1D 00 00 00 00 00 00 00 1E 00 00 00 04 00 00 00 // ................
180
0040: 1B 00 00 00 00 00 00 00 1A 00 00 00 00 00 00 00 // ................
181
0050: FF FF FF FF FF FF FF FF 00 00 00 00 00 00 00 00 // ................
182
+ 0060: 00 00 00 00 00 00 00 00 // ........
183
184
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
185
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
186
Message-id: 20240122143537.233498-4-peter.maydell@linaro.org
187
---
188
tests/qtest/bios-tables-test-allowed-diff.h | 2 --
189
tests/data/acpi/virt/FACP | Bin 276 -> 276 bytes
190
tests/data/acpi/virt/GTDT | Bin 96 -> 104 bytes
191
3 files changed, 2 deletions(-)
192
193
diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios-tables-test-allowed-diff.h
194
index XXXXXXX..XXXXXXX 100644
195
--- a/tests/qtest/bios-tables-test-allowed-diff.h
196
+++ b/tests/qtest/bios-tables-test-allowed-diff.h
197
@@ -1,3 +1 @@
198
/* List of comma-separated changed AML files to ignore */
199
-"tests/data/acpi/virt/FACP",
200
-"tests/data/acpi/virt/GTDT",
201
diff --git a/tests/data/acpi/virt/FACP b/tests/data/acpi/virt/FACP
202
index XXXXXXX..XXXXXXX 100644
203
GIT binary patch
204
delta 25
205
gcmbQjG=+)F&CxkPgpq-PO=u!l<;2F$$vli407<0<)c^nh
206
207
delta 28
208
kcmbQjG=+)F&CxkPgpq-PO>`nx<-|!<6Akz$^DuG%0AAS!ssI20
209
210
diff --git a/tests/data/acpi/virt/GTDT b/tests/data/acpi/virt/GTDT
211
index XXXXXXX..XXXXXXX 100644
212
GIT binary patch
213
delta 25
214
bcmYeu;BpUf3CUn!U|^m+kt>V?$N&QXMtB4L
215
216
delta 16
217
Xcmc~u;BpUf2}xjJU|^avkt+-UB60)u
218
219
--
220
2.34.1
diff view generated by jsdifflib
New patch
1
The patchset adding the GMAC ethernet to this SoC crossed in the
2
mail with the patchset cleaning up the NIC handling. When we
3
create the GMAC modules we must call qemu_configure_nic_device()
4
so that the user has the opportunity to use the -nic commandline
5
option to create a network backend and connect it to the GMACs.
1
6
7
Add the missing call.
8
9
Fixes: 21e5326a7c ("hw/arm: Add GMAC devices to NPCM7XX SoC")
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
12
Message-id: 20240206171231.396392-2-peter.maydell@linaro.org
13
---
14
hw/arm/npcm7xx.c | 1 +
15
1 file changed, 1 insertion(+)
16
17
diff --git a/hw/arm/npcm7xx.c b/hw/arm/npcm7xx.c
18
index XXXXXXX..XXXXXXX 100644
19
--- a/hw/arm/npcm7xx.c
20
+++ b/hw/arm/npcm7xx.c
21
@@ -XXX,XX +XXX,XX @@ static void npcm7xx_realize(DeviceState *dev, Error **errp)
22
for (i = 0; i < ARRAY_SIZE(s->gmac); i++) {
23
SysBusDevice *sbd = SYS_BUS_DEVICE(&s->gmac[i]);
24
25
+ qemu_configure_nic_device(DEVICE(sbd), false, NULL);
26
/*
27
* The device exists regardless of whether it's connected to a QEMU
28
* netdev backend. So always instantiate it even if there is no
29
--
30
2.34.1
diff view generated by jsdifflib
New patch
1
Currently QEMU will warn if there is a NIC on the board that
2
is not connected to a backend. By default the '-nic user' will
3
get used for all NICs, but if you manually connect a specific
4
NIC to a specific backend, then the other NICs on the board
5
have no backend and will be warned about:
1
6
7
qemu-system-arm: warning: nic npcm7xx-emc.1 has no peer
8
qemu-system-arm: warning: nic npcm-gmac.0 has no peer
9
qemu-system-arm: warning: nic npcm-gmac.1 has no peer
10
11
So suppress those warnings by manually connecting every NIC
12
on the board to some backend.
13
14
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
15
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
16
Reviewed-by: Thomas Huth <thuth@redhat.com>
17
Message-id: 20240206171231.396392-3-peter.maydell@linaro.org
18
---
19
tests/qtest/npcm7xx_emc-test.c | 5 ++++-
20
1 file changed, 4 insertions(+), 1 deletion(-)
21
22
diff --git a/tests/qtest/npcm7xx_emc-test.c b/tests/qtest/npcm7xx_emc-test.c
23
index XXXXXXX..XXXXXXX 100644
24
--- a/tests/qtest/npcm7xx_emc-test.c
25
+++ b/tests/qtest/npcm7xx_emc-test.c
26
@@ -XXX,XX +XXX,XX @@ static int *packet_test_init(int module_num, GString *cmd_line)
27
* KISS and use -nic. The driver accepts 'emc0' and 'emc1' as aliases
28
* in the 'model' field to specify the device to match.
29
*/
30
- g_string_append_printf(cmd_line, " -nic socket,fd=%d,model=emc%d ",
31
+ g_string_append_printf(cmd_line, " -nic socket,fd=%d,model=emc%d "
32
+ "-nic user,model=npcm7xx-emc "
33
+ "-nic user,model=npcm-gmac "
34
+ "-nic user,model=npcm-gmac",
35
test_sockets[1], module_num);
36
37
g_test_queue_destroy(packet_test_clear, test_sockets);
38
--
39
2.34.1
diff view generated by jsdifflib
New patch
1
It doesn't make sense to read the value of MDCR_EL2 on a non-A-profile
2
CPU, and in fact if you try to do it we will assert:
1
3
4
#6 0x00007ffff4b95e96 in __GI___assert_fail
5
(assertion=0x5555565a8c70 "!arm_feature(env, ARM_FEATURE_M)", file=0x5555565a6e5c "../../target/arm/helper.c", line=12600, function=0x5555565a9560 <__PRETTY_FUNCTION__.0> "arm_security_space_below_el3") at ./assert/assert.c:101
6
#7 0x0000555555ebf412 in arm_security_space_below_el3 (env=0x555557bc8190) at ../../target/arm/helper.c:12600
7
#8 0x0000555555ea6f89 in arm_is_el2_enabled (env=0x555557bc8190) at ../../target/arm/cpu.h:2595
8
#9 0x0000555555ea942f in arm_mdcr_el2_eff (env=0x555557bc8190) at ../../target/arm/internals.h:1512
9
10
We might call pmu_counter_enabled() on an M-profile CPU (for example
11
from the migration pre/post hooks in machine.c); this should always
12
return false because these CPUs don't set ARM_FEATURE_PMU.
13
14
Avoid the assertion by not calling arm_mdcr_el2_eff() before we
15
have done the early return for "PMU not present".
16
17
This fixes an assertion failure if you try to do a loadvm or
18
savevm for an M-profile board.
19
20
Cc: qemu-stable@nongnu.org
21
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2155
22
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
23
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
24
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
25
Message-id: 20240208153346.970021-1-peter.maydell@linaro.org
26
---
27
target/arm/helper.c | 12 ++++++++++--
28
1 file changed, 10 insertions(+), 2 deletions(-)
29
30
diff --git a/target/arm/helper.c b/target/arm/helper.c
31
index XXXXXXX..XXXXXXX 100644
32
--- a/target/arm/helper.c
33
+++ b/target/arm/helper.c
34
@@ -XXX,XX +XXX,XX @@ static bool pmu_counter_enabled(CPUARMState *env, uint8_t counter)
35
bool enabled, prohibited = false, filtered;
36
bool secure = arm_is_secure(env);
37
int el = arm_current_el(env);
38
- uint64_t mdcr_el2 = arm_mdcr_el2_eff(env);
39
- uint8_t hpmn = mdcr_el2 & MDCR_HPMN;
40
+ uint64_t mdcr_el2;
41
+ uint8_t hpmn;
42
43
+ /*
44
+ * We might be called for M-profile cores where MDCR_EL2 doesn't
45
+ * exist and arm_mdcr_el2_eff() will assert, so this early-exit check
46
+ * must be before we read that value.
47
+ */
48
if (!arm_feature(env, ARM_FEATURE_PMU)) {
49
return false;
50
}
51
52
+ mdcr_el2 = arm_mdcr_el2_eff(env);
53
+ hpmn = mdcr_el2 & MDCR_HPMN;
54
+
55
if (!arm_feature(env, ARM_FEATURE_EL2) ||
56
(counter < hpmn || counter == 31)) {
57
e = env->cp15.c9_pmcr & PMCRE;
58
--
59
2.34.1
60
61
diff view generated by jsdifflib
New patch
1
From: Nabih Estefan <nabihestefan@google.com>
1
2
3
Fix the nocm_gmac-test.c file to run on a nuvoton 7xx machine instead
4
of 8xx. Also fix comments referencing this and values expecting 8xx.
5
6
Change-Id: Iabd0fba14910c3f1e883c4a9521350f3db9ffab8
7
Signed-Off-By: Nabih Estefan <nabihestefan@google.com>
8
Reviewed-by: Tyrone Ting <kfting@nuvoton.com>
9
Message-id: 20240208194759.2858582-2-nabihestefan@google.com
10
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
11
[PMM: commit message tweaks]
12
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
13
---
14
tests/qtest/npcm_gmac-test.c | 84 +-----------------------------------
15
tests/qtest/meson.build | 3 +-
16
2 files changed, 4 insertions(+), 83 deletions(-)
17
18
diff --git a/tests/qtest/npcm_gmac-test.c b/tests/qtest/npcm_gmac-test.c
19
index XXXXXXX..XXXXXXX 100644
20
--- a/tests/qtest/npcm_gmac-test.c
21
+++ b/tests/qtest/npcm_gmac-test.c
22
@@ -XXX,XX +XXX,XX @@ typedef struct TestData {
23
const GMACModule *module;
24
} TestData;
25
26
-/* Values extracted from hw/arm/npcm8xx.c */
27
+/* Values extracted from hw/arm/npcm7xx.c */
28
static const GMACModule gmac_module_list[] = {
29
{
30
.irq = 14,
31
@@ -XXX,XX +XXX,XX @@ static const GMACModule gmac_module_list[] = {
32
.irq = 15,
33
.base_addr = 0xf0804000
34
},
35
- {
36
- .irq = 16,
37
- .base_addr = 0xf0806000
38
- },
39
- {
40
- .irq = 17,
41
- .base_addr = 0xf0808000
42
- }
43
};
44
45
/* Returns the index of the GMAC module. */
46
@@ -XXX,XX +XXX,XX @@ static uint32_t gmac_read(QTestState *qts, const GMACModule *mod,
47
return qtest_readl(qts, mod->base_addr + regno);
48
}
49
50
-static uint16_t pcs_read(QTestState *qts, const GMACModule *mod,
51
- NPCMRegister regno)
52
-{
53
- uint32_t write_value = (regno & 0x3ffe00) >> 9;
54
- qtest_writel(qts, PCS_BASE_ADDRESS + NPCM_PCS_IND_AC_BA, write_value);
55
- uint32_t read_offset = regno & 0x1ff;
56
- return qtest_readl(qts, PCS_BASE_ADDRESS + read_offset);
57
-}
58
-
59
/* Check that GMAC registers are reset to default value */
60
static void test_init(gconstpointer test_data)
61
{
62
const TestData *td = test_data;
63
const GMACModule *mod = td->module;
64
- QTestState *qts = qtest_init("-machine npcm845-evb");
65
+ QTestState *qts = qtest_init("-machine npcm750-evb");
66
67
#define CHECK_REG32(regno, value) \
68
do { \
69
g_assert_cmphex(gmac_read(qts, mod, (regno)), ==, (value)); \
70
} while (0)
71
72
-#define CHECK_REG_PCS(regno, value) \
73
- do { \
74
- g_assert_cmphex(pcs_read(qts, mod, (regno)), ==, (value)); \
75
- } while (0)
76
-
77
CHECK_REG32(NPCM_DMA_BUS_MODE, 0x00020100);
78
CHECK_REG32(NPCM_DMA_XMT_POLL_DEMAND, 0);
79
CHECK_REG32(NPCM_DMA_RCV_POLL_DEMAND, 0);
80
@@ -XXX,XX +XXX,XX @@ static void test_init(gconstpointer test_data)
81
CHECK_REG32(NPCM_GMAC_PTP_TAR, 0);
82
CHECK_REG32(NPCM_GMAC_PTP_TTSR, 0);
83
84
- /* TODO Add registers PCS */
85
- if (mod->base_addr == 0xf0802000) {
86
- CHECK_REG_PCS(NPCM_PCS_SR_CTL_ID1, 0x699e);
87
- CHECK_REG_PCS(NPCM_PCS_SR_CTL_ID2, 0);
88
- CHECK_REG_PCS(NPCM_PCS_SR_CTL_STS, 0x8000);
89
-
90
- CHECK_REG_PCS(NPCM_PCS_SR_MII_CTRL, 0x1140);
91
- CHECK_REG_PCS(NPCM_PCS_SR_MII_STS, 0x0109);
92
- CHECK_REG_PCS(NPCM_PCS_SR_MII_DEV_ID1, 0x699e);
93
- CHECK_REG_PCS(NPCM_PCS_SR_MII_DEV_ID2, 0x0ced0);
94
- CHECK_REG_PCS(NPCM_PCS_SR_MII_AN_ADV, 0x0020);
95
- CHECK_REG_PCS(NPCM_PCS_SR_MII_LP_BABL, 0);
96
- CHECK_REG_PCS(NPCM_PCS_SR_MII_AN_EXPN, 0);
97
- CHECK_REG_PCS(NPCM_PCS_SR_MII_EXT_STS, 0xc000);
98
-
99
- CHECK_REG_PCS(NPCM_PCS_SR_TIM_SYNC_ABL, 0x0003);
100
- CHECK_REG_PCS(NPCM_PCS_SR_TIM_SYNC_TX_MAX_DLY_LWR, 0x0038);
101
- CHECK_REG_PCS(NPCM_PCS_SR_TIM_SYNC_TX_MAX_DLY_UPR, 0);
102
- CHECK_REG_PCS(NPCM_PCS_SR_TIM_SYNC_TX_MIN_DLY_LWR, 0x0038);
103
- CHECK_REG_PCS(NPCM_PCS_SR_TIM_SYNC_TX_MIN_DLY_UPR, 0);
104
- CHECK_REG_PCS(NPCM_PCS_SR_TIM_SYNC_RX_MAX_DLY_LWR, 0x0058);
105
- CHECK_REG_PCS(NPCM_PCS_SR_TIM_SYNC_RX_MAX_DLY_UPR, 0);
106
- CHECK_REG_PCS(NPCM_PCS_SR_TIM_SYNC_RX_MIN_DLY_LWR, 0x0048);
107
- CHECK_REG_PCS(NPCM_PCS_SR_TIM_SYNC_RX_MIN_DLY_UPR, 0);
108
-
109
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MMD_DIG_CTRL1, 0x2400);
110
- CHECK_REG_PCS(NPCM_PCS_VR_MII_AN_CTRL, 0);
111
- CHECK_REG_PCS(NPCM_PCS_VR_MII_AN_INTR_STS, 0x000a);
112
- CHECK_REG_PCS(NPCM_PCS_VR_MII_TC, 0);
113
- CHECK_REG_PCS(NPCM_PCS_VR_MII_DBG_CTRL, 0);
114
- CHECK_REG_PCS(NPCM_PCS_VR_MII_EEE_MCTRL0, 0x899c);
115
- CHECK_REG_PCS(NPCM_PCS_VR_MII_EEE_TXTIMER, 0);
116
- CHECK_REG_PCS(NPCM_PCS_VR_MII_EEE_RXTIMER, 0);
117
- CHECK_REG_PCS(NPCM_PCS_VR_MII_LINK_TIMER_CTRL, 0);
118
- CHECK_REG_PCS(NPCM_PCS_VR_MII_EEE_MCTRL1, 0);
119
- CHECK_REG_PCS(NPCM_PCS_VR_MII_DIG_STS, 0x0010);
120
- CHECK_REG_PCS(NPCM_PCS_VR_MII_ICG_ERRCNT1, 0);
121
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MISC_STS, 0);
122
- CHECK_REG_PCS(NPCM_PCS_VR_MII_RX_LSTS, 0);
123
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_TX_BSTCTRL0, 0x00a);
124
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_TX_LVLCTRL0, 0x007f);
125
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_TX_GENCTRL0, 0x0001);
126
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_TX_GENCTRL1, 0);
127
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_TX_STS, 0);
128
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_RX_GENCTRL0, 0x0100);
129
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_RX_GENCTRL1, 0x1100);
130
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_RX_LOS_CTRL0, 0x000e);
131
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_MPLL_CTRL0, 0x0100);
132
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_MPLL_CTRL1, 0x0032);
133
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_MPLL_STS, 0x0001);
134
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_MISC_CTRL2, 0);
135
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_LVL_CTRL, 0x0019);
136
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_MISC_CTRL0, 0);
137
- CHECK_REG_PCS(NPCM_PCS_VR_MII_MP_MISC_CTRL1, 0);
138
- CHECK_REG_PCS(NPCM_PCS_VR_MII_DIG_CTRL2, 0);
139
- CHECK_REG_PCS(NPCM_PCS_VR_MII_DIG_ERRCNT_SEL, 0);
140
- }
141
-
142
qtest_quit(qts);
143
}
144
145
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
146
index XXXXXXX..XXXXXXX 100644
147
--- a/tests/qtest/meson.build
148
+++ b/tests/qtest/meson.build
149
@@ -XXX,XX +XXX,XX @@ qtests_npcm7xx = \
150
'npcm7xx_sdhci-test',
151
'npcm7xx_smbus-test',
152
'npcm7xx_timer-test',
153
- 'npcm7xx_watchdog_timer-test'] + \
154
+ 'npcm7xx_watchdog_timer-test',
155
+ 'npcm_gmac-test'] + \
156
(slirp.found() ? ['npcm7xx_emc-test'] : [])
157
qtests_aspeed = \
158
['aspeed_hace-test',
159
--
160
2.34.1
diff view generated by jsdifflib
New patch
1
From: Luc Michel <luc.michel@amd.com>
1
2
3
An access fault is raised when the Access Flag is not set in the
4
looked-up PTE and the AFFD field is not set in the corresponding context
5
descriptor. This was already implemented for stage 2. Implement it for
6
stage 1 as well.
7
8
Signed-off-by: Luc Michel <luc.michel@amd.com>
9
Reviewed-by: Mostafa Saleh <smostafa@google.com>
10
Reviewed-by: Eric Auger <eric.auger@redhat.com>
11
Tested-by: Mostafa Saleh <smostafa@google.com>
12
Message-id: 20240213082211.3330400-1-luc.michel@amd.com
13
[PMM: tweaked comment text]
14
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
15
---
16
hw/arm/smmuv3-internal.h | 1 +
17
include/hw/arm/smmu-common.h | 1 +
18
hw/arm/smmu-common.c | 11 +++++++++++
19
hw/arm/smmuv3.c | 1 +
20
4 files changed, 14 insertions(+)
21
22
diff --git a/hw/arm/smmuv3-internal.h b/hw/arm/smmuv3-internal.h
23
index XXXXXXX..XXXXXXX 100644
24
--- a/hw/arm/smmuv3-internal.h
25
+++ b/hw/arm/smmuv3-internal.h
26
@@ -XXX,XX +XXX,XX @@ static inline int pa_range(STE *ste)
27
#define CD_EPD(x, sel) extract32((x)->word[0], (16 * (sel)) + 14, 1)
28
#define CD_ENDI(x) extract32((x)->word[0], 15, 1)
29
#define CD_IPS(x) extract32((x)->word[1], 0 , 3)
30
+#define CD_AFFD(x) extract32((x)->word[1], 3 , 1)
31
#define CD_TBI(x) extract32((x)->word[1], 6 , 2)
32
#define CD_HD(x) extract32((x)->word[1], 10 , 1)
33
#define CD_HA(x) extract32((x)->word[1], 11 , 1)
34
diff --git a/include/hw/arm/smmu-common.h b/include/hw/arm/smmu-common.h
35
index XXXXXXX..XXXXXXX 100644
36
--- a/include/hw/arm/smmu-common.h
37
+++ b/include/hw/arm/smmu-common.h
38
@@ -XXX,XX +XXX,XX @@ typedef struct SMMUTransCfg {
39
bool disabled; /* smmu is disabled */
40
bool bypassed; /* translation is bypassed */
41
bool aborted; /* translation is aborted */
42
+ bool affd; /* AF fault disable */
43
uint32_t iotlb_hits; /* counts IOTLB hits */
44
uint32_t iotlb_misses; /* counts IOTLB misses*/
45
/* Used by stage-1 only. */
46
diff --git a/hw/arm/smmu-common.c b/hw/arm/smmu-common.c
47
index XXXXXXX..XXXXXXX 100644
48
--- a/hw/arm/smmu-common.c
49
+++ b/hw/arm/smmu-common.c
50
@@ -XXX,XX +XXX,XX @@ static int smmu_ptw_64_s1(SMMUTransCfg *cfg,
51
pte_addr, pte, iova, gpa,
52
block_size >> 20);
53
}
54
+
55
+ /*
56
+ * QEMU does not currently implement HTTU, so if AFFD and PTE.AF
57
+ * are 0 we take an Access flag fault. (5.4. Context Descriptor)
58
+ * An Access flag fault takes priority over a Permission fault.
59
+ */
60
+ if (!PTE_AF(pte) && !cfg->affd) {
61
+ info->type = SMMU_PTW_ERR_ACCESS;
62
+ goto error;
63
+ }
64
+
65
ap = PTE_AP(pte);
66
if (is_permission_fault(ap, perm)) {
67
info->type = SMMU_PTW_ERR_PERMISSION;
68
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
69
index XXXXXXX..XXXXXXX 100644
70
--- a/hw/arm/smmuv3.c
71
+++ b/hw/arm/smmuv3.c
72
@@ -XXX,XX +XXX,XX @@ static int decode_cd(SMMUTransCfg *cfg, CD *cd, SMMUEventInfo *event)
73
cfg->oas = MIN(oas2bits(SMMU_IDR5_OAS), cfg->oas);
74
cfg->tbi = CD_TBI(cd);
75
cfg->asid = CD_ASID(cd);
76
+ cfg->affd = CD_AFFD(cd);
77
78
trace_smmuv3_decode_cd(cfg->oas);
79
80
--
81
2.34.1
diff view generated by jsdifflib
New patch
1
From: Philippe Mathieu-Daudé <philmd@linaro.org>
1
2
3
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
4
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
5
Message-id: 20240213155214.13619-2-philmd@linaro.org
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
---
8
hw/arm/stellaris.c | 6 ++++--
9
1 file changed, 4 insertions(+), 2 deletions(-)
10
11
diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
12
index XXXXXXX..XXXXXXX 100644
13
--- a/hw/arm/stellaris.c
14
+++ b/hw/arm/stellaris.c
15
@@ -XXX,XX +XXX,XX @@ static void stellaris_adc_trigger(void *opaque, int irq, int level)
16
}
17
}
18
19
-static void stellaris_adc_reset(StellarisADCState *s)
20
+static void stellaris_adc_reset_hold(Object *obj)
21
{
22
+ StellarisADCState *s = STELLARIS_ADC(obj);
23
int n;
24
25
for (n = 0; n < 4; n++) {
26
@@ -XXX,XX +XXX,XX @@ static void stellaris_adc_init(Object *obj)
27
memory_region_init_io(&s->iomem, obj, &stellaris_adc_ops, s,
28
"adc", 0x1000);
29
sysbus_init_mmio(sbd, &s->iomem);
30
- stellaris_adc_reset(s);
31
qdev_init_gpio_in(dev, stellaris_adc_trigger, 1);
32
}
33
34
@@ -XXX,XX +XXX,XX @@ static const TypeInfo stellaris_i2c_info = {
35
static void stellaris_adc_class_init(ObjectClass *klass, void *data)
36
{
37
DeviceClass *dc = DEVICE_CLASS(klass);
38
+ ResettableClass *rc = RESETTABLE_CLASS(klass);
39
40
+ rc->phases.hold = stellaris_adc_reset_hold;
41
dc->vmsd = &vmstate_stellaris_adc;
42
}
43
44
--
45
2.34.1
46
47
diff view generated by jsdifflib
1
From: Andrey Smirnov <andrew.smirnov@gmail.com>
1
From: Philippe Mathieu-Daudé <philmd@linaro.org>
2
2
3
Code of imx_update() is slightly confusing since the "flags" variable
3
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
4
doesn't really corespond to anything in real hardware and server as a
4
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
5
kitchensink accumulating events normally reported via USR1 and USR2
5
Message-id: 20240213155214.13619-3-philmd@linaro.org
6
registers.
7
8
Change the code to explicitly evaluate state of interrupts reported
9
via USR1 and USR2 against corresponding masking bits and use the to
10
detemine if IRQ line should be asserted or not.
11
12
NOTE: Check for UTS1_TXEMPTY being set has been dropped for two
13
reasons:
14
15
1. Emulation code implements a single character FIFO, so this flag
16
will always be set since characters are trasmitted as a part of
17
the code emulating "push" into the FIFO
18
19
2. imx_update() is really just a function doing ORing and maksing
20
of reported events, so checking for UTS1_TXEMPTY should happen,
21
if it's ever really needed should probably happen outside of
22
it.
23
24
Cc: qemu-devel@nongnu.org
25
Cc: qemu-arm@nongnu.org
26
Cc: Bill Paul <wpaul@windriver.com>
27
Cc: Peter Maydell <peter.maydell@linaro.org>
28
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
29
Message-id: 20180315191141.6789-1-andrew.smirnov@gmail.com
30
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
6
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
31
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
32
---
8
---
33
hw/char/imx_serial.c | 24 ++++++++++++++++--------
9
hw/arm/stellaris.c | 26 ++++++++++++++++++++++----
34
1 file changed, 16 insertions(+), 8 deletions(-)
10
1 file changed, 22 insertions(+), 4 deletions(-)
35
11
36
diff --git a/hw/char/imx_serial.c b/hw/char/imx_serial.c
12
diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
37
index XXXXXXX..XXXXXXX 100644
13
index XXXXXXX..XXXXXXX 100644
38
--- a/hw/char/imx_serial.c
14
--- a/hw/arm/stellaris.c
39
+++ b/hw/char/imx_serial.c
15
+++ b/hw/arm/stellaris.c
40
@@ -XXX,XX +XXX,XX @@ static const VMStateDescription vmstate_imx_serial = {
16
@@ -XXX,XX +XXX,XX @@ static void stellaris_sys_instance_init(Object *obj)
41
17
s->sysclk = qdev_init_clock_out(DEVICE(s), "SYSCLK");
42
static void imx_update(IMXSerialState *s)
18
}
19
20
-/* I2C controller. */
21
+/*
22
+ * I2C controller.
23
+ * ??? For now we only implement the master interface.
24
+ */
25
26
#define TYPE_STELLARIS_I2C "stellaris-i2c"
27
OBJECT_DECLARE_SIMPLE_TYPE(stellaris_i2c_state, STELLARIS_I2C)
28
@@ -XXX,XX +XXX,XX @@ static void stellaris_i2c_write(void *opaque, hwaddr offset,
29
stellaris_i2c_update(s);
30
}
31
32
-static void stellaris_i2c_reset(stellaris_i2c_state *s)
33
+static void stellaris_i2c_reset_enter(Object *obj, ResetType type)
43
{
34
{
44
- uint32_t flags;
35
+ stellaris_i2c_state *s = STELLARIS_I2C(obj);
45
+ uint32_t usr1;
36
+
46
+ uint32_t usr2;
37
if (s->mcs & STELLARIS_I2C_MCS_BUSBSY)
47
+ uint32_t mask;
38
i2c_end_transfer(s->bus);
48
39
+}
49
- flags = (s->usr1 & s->ucr1) & (USR1_TRDY|USR1_RRDY);
40
+
50
- if (s->ucr1 & UCR1_TXMPTYEN) {
41
+static void stellaris_i2c_reset_hold(Object *obj)
51
- flags |= (s->uts1 & UTS1_TXEMPTY);
42
+{
52
- } else {
43
+ stellaris_i2c_state *s = STELLARIS_I2C(obj);
53
- flags &= ~USR1_TRDY;
44
54
- }
45
s->msa = 0;
55
+ /*
46
s->mcs = 0;
56
+ * Lucky for us TRDY and RRDY has the same offset in both USR1 and
47
@@ -XXX,XX +XXX,XX @@ static void stellaris_i2c_reset(stellaris_i2c_state *s)
57
+ * UCR1, so we can get away with something as simple as the
48
s->mimr = 0;
58
+ * following:
49
s->mris = 0;
59
+ */
50
s->mcr = 0;
60
+ usr1 = s->usr1 & s->ucr1 & (USR1_TRDY | USR1_RRDY);
51
+}
61
+ /*
52
+
62
+ * Bits that we want in USR2 are not as conveniently laid out,
53
+static void stellaris_i2c_reset_exit(Object *obj)
63
+ * unfortunately.
54
+{
64
+ */
55
+ stellaris_i2c_state *s = STELLARIS_I2C(obj);
65
+ mask = (s->ucr1 & UCR1_TXMPTYEN) ? USR2_TXFE : 0;
56
+
66
+ usr2 = s->usr2 & mask;
57
stellaris_i2c_update(s);
67
68
- qemu_set_irq(s->irq, !!flags);
69
+ qemu_set_irq(s->irq, usr1 || usr2);
70
}
58
}
71
59
72
static void imx_serial_reset(IMXSerialState *s)
60
@@ -XXX,XX +XXX,XX @@ static void stellaris_i2c_init(Object *obj)
61
memory_region_init_io(&s->iomem, obj, &stellaris_i2c_ops, s,
62
"i2c", 0x1000);
63
sysbus_init_mmio(sbd, &s->iomem);
64
- /* ??? For now we only implement the master interface. */
65
- stellaris_i2c_reset(s);
66
}
67
68
/* Analogue to Digital Converter. This is only partially implemented,
69
@@ -XXX,XX +XXX,XX @@ type_init(stellaris_machine_init)
70
static void stellaris_i2c_class_init(ObjectClass *klass, void *data)
71
{
72
DeviceClass *dc = DEVICE_CLASS(klass);
73
+ ResettableClass *rc = RESETTABLE_CLASS(klass);
74
75
+ rc->phases.enter = stellaris_i2c_reset_enter;
76
+ rc->phases.hold = stellaris_i2c_reset_hold;
77
+ rc->phases.exit = stellaris_i2c_reset_exit;
78
dc->vmsd = &vmstate_stellaris_i2c;
79
}
80
73
--
81
--
74
2.16.2
82
2.34.1
75
83
76
84
diff view generated by jsdifflib
1
From: Wei Huang <wei@redhat.com>
1
From: Philippe Mathieu-Daudé <philmd@linaro.org>
2
2
3
For guest kernel that supports KASLR, the load address can change every
3
QDev objects created with qdev_new() need to manually add
4
time when guest VM runs. To find the physical base address correctly,
4
their parent relationship with object_property_add_child().
5
current QEMU dump searches VMCOREINFO for the string "NUMBER(phys_base)=".
6
However this string pattern is only available on x86_64. AArch64 uses a
7
different field, called "NUMBER(PHYS_OFFSET)=". This patch makes sure
8
QEMU dump uses the correct string on AArch64.
9
5
10
Signed-off-by: Wei Huang <wei@redhat.com>
6
This commit plug the devices which aren't part of the SoC;
11
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
7
they will be plugged into a SoC container in the next one.
12
Message-id: 1520615003-20869-1-git-send-email-wei@redhat.com
8
9
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
10
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
11
Message-id: 20240213155214.13619-4-philmd@linaro.org
13
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
12
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
14
---
13
---
15
dump.c | 14 +++++++++++---
14
hw/arm/stellaris.c | 4 ++++
16
1 file changed, 11 insertions(+), 3 deletions(-)
15
1 file changed, 4 insertions(+)
17
16
18
diff --git a/dump.c b/dump.c
17
diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
19
index XXXXXXX..XXXXXXX 100644
18
index XXXXXXX..XXXXXXX 100644
20
--- a/dump.c
19
--- a/hw/arm/stellaris.c
21
+++ b/dump.c
20
+++ b/hw/arm/stellaris.c
22
@@ -XXX,XX +XXX,XX @@ static void vmcoreinfo_update_phys_base(DumpState *s)
21
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
23
22
&error_fatal);
24
lines = g_strsplit((char *)vmci, "\n", -1);
23
25
for (i = 0; lines[i]; i++) {
24
ssddev = qdev_new("ssd0323");
26
- if (g_str_has_prefix(lines[i], "NUMBER(phys_base)=")) {
25
+ object_property_add_child(OBJECT(ms), "oled", OBJECT(ssddev));
27
- if (qemu_strtou64(lines[i] + 18, NULL, 16,
26
qdev_prop_set_uint8(ssddev, "cs", 1);
28
+ const char *prefix = NULL;
27
qdev_realize_and_unref(ssddev, bus, &error_fatal);
29
+
28
30
+ if (s->dump_info.d_machine == EM_X86_64) {
29
gpio_d_splitter = qdev_new(TYPE_SPLIT_IRQ);
31
+ prefix = "NUMBER(phys_base)=";
30
+ object_property_add_child(OBJECT(ms), "splitter",
32
+ } else if (s->dump_info.d_machine == EM_AARCH64) {
31
+ OBJECT(gpio_d_splitter));
33
+ prefix = "NUMBER(PHYS_OFFSET)=";
32
qdev_prop_set_uint32(gpio_d_splitter, "num-lines", 2);
34
+ }
33
qdev_realize_and_unref(gpio_d_splitter, NULL, &error_fatal);
35
+
34
qdev_connect_gpio_out(
36
+ if (prefix && g_str_has_prefix(lines[i], prefix)) {
35
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
37
+ if (qemu_strtou64(lines[i] + strlen(prefix), NULL, 16,
36
DeviceState *gpad;
38
&phys_base) < 0) {
37
39
- warn_report("Failed to read NUMBER(phys_base)=");
38
gpad = qdev_new(TYPE_STELLARIS_GAMEPAD);
40
+ warn_report("Failed to read %s", prefix);
39
+ object_property_add_child(OBJECT(ms), "gamepad", OBJECT(gpad));
41
} else {
40
for (i = 0; i < ARRAY_SIZE(gpad_keycode); i++) {
42
s->dump_info.phys_base = phys_base;
41
qlist_append_int(gpad_keycode_list, gpad_keycode[i]);
43
}
42
}
44
--
43
--
45
2.16.2
44
2.34.1
46
45
47
46
diff view generated by jsdifflib
1
From: Guenter Roeck <linux@roeck-us.net>
1
From: Philippe Mathieu-Daudé <philmd@linaro.org>
2
2
3
The sabrelite machine model used by qemu-system-arm is based on the
3
QDev objects created with qdev_new() need to manually add
4
Freescale/NXP i.MX6Q processor. This SoC has an on-board ethernet
4
their parent relationship with object_property_add_child().
5
controller which is supported in QEMU using the imx_fec.c module
6
(actually called imx.enet for this model.)
7
5
8
The include/hw/arm/fsm-imx6.h file defines the interrupt vectors for the
6
Since we don't model the SoC, just use a QOM container.
9
imx.enet device like this:
10
7
11
#define FSL_IMX6_ENET_MAC_1588_IRQ 118
8
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
12
#define FSL_IMX6_ENET_MAC_IRQ 119
13
14
According to https://www.nxp.com/docs/en/reference-manual/IMX6DQRM.pdf,
15
page 225, in Table 3-1. ARM Cortex A9 domain interrupt summary,
16
interrupts are as follows.
17
18
150 ENET MAC 0 IRQ
19
151 ENET MAC 0 1588 Timer interrupt
20
21
where
22
23
150 - 32 == 118
24
151 - 32 == 119
25
26
In other words, the vector definitions in the fsl-imx6.h file are reversed.
27
28
Fixing the interrupts alone causes problems with older Linux kernels:
29
The Ethernet interface will fail to probe with Linux v4.9 and earlier.
30
Linux v4.1 and earlier will crash due to a bug in Ethernet driver probe
31
error handling. This is a Linux kernel problem, not a qemu problem:
32
the Linux kernel only worked by accident since it requested both interrupts.
33
34
For backward compatibility, generate the Ethernet interrupt on both interrupt
35
lines. This was shown to work from all Linux kernel releases starting with
36
v3.16.
37
38
Link: https://bugs.launchpad.net/qemu/+bug/1753309
39
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
40
Message-id: 1520723090-22130-1-git-send-email-linux@roeck-us.net
41
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
9
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
10
Message-id: 20240213155214.13619-5-philmd@linaro.org
42
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
43
---
12
---
44
include/hw/arm/fsl-imx6.h | 4 ++--
13
hw/arm/stellaris.c | 11 ++++++++++-
45
hw/net/imx_fec.c | 28 +++++++++++++++++++++++++++-
14
1 file changed, 10 insertions(+), 1 deletion(-)
46
2 files changed, 29 insertions(+), 3 deletions(-)
47
15
48
diff --git a/include/hw/arm/fsl-imx6.h b/include/hw/arm/fsl-imx6.h
16
diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
49
index XXXXXXX..XXXXXXX 100644
17
index XXXXXXX..XXXXXXX 100644
50
--- a/include/hw/arm/fsl-imx6.h
18
--- a/hw/arm/stellaris.c
51
+++ b/include/hw/arm/fsl-imx6.h
19
+++ b/hw/arm/stellaris.c
52
@@ -XXX,XX +XXX,XX @@ typedef struct FslIMX6State {
20
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
53
#define FSL_IMX6_HDMI_MASTER_IRQ 115
21
* 400fe000 system control
54
#define FSL_IMX6_HDMI_CEC_IRQ 116
22
*/
55
#define FSL_IMX6_MLB150_LOW_IRQ 117
23
56
-#define FSL_IMX6_ENET_MAC_1588_IRQ 118
24
+ Object *soc_container;
57
-#define FSL_IMX6_ENET_MAC_IRQ 119
25
DeviceState *gpio_dev[7], *nvic;
58
+#define FSL_IMX6_ENET_MAC_IRQ 118
26
qemu_irq gpio_in[7][8];
59
+#define FSL_IMX6_ENET_MAC_1588_IRQ 119
27
qemu_irq gpio_out[7][8];
60
#define FSL_IMX6_PCIE1_IRQ 120
28
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
61
#define FSL_IMX6_PCIE2_IRQ 121
29
flash_size = (((board->dc0 & 0xffff) + 1) << 1) * 1024;
62
#define FSL_IMX6_PCIE3_IRQ 122
30
sram_size = ((board->dc0 >> 18) + 1) * 1024;
63
diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
31
64
index XXXXXXX..XXXXXXX 100644
32
+ soc_container = object_new("container");
65
--- a/hw/net/imx_fec.c
33
+ object_property_add_child(OBJECT(ms), "soc", soc_container);
66
+++ b/hw/net/imx_fec.c
34
+
67
@@ -XXX,XX +XXX,XX @@ static void imx_enet_write_bd(IMXENETBufDesc *bd, dma_addr_t addr)
35
/* Flash programming is done via the SCU, so pretend it is ROM. */
68
36
memory_region_init_rom(flash, NULL, "stellaris.flash", flash_size,
69
static void imx_eth_update(IMXFECState *s)
37
&error_fatal);
70
{
38
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
71
- if (s->regs[ENET_EIR] & s->regs[ENET_EIMR] & ENET_INT_TS_TIMER) {
39
* need its sysclk output.
72
+ /*
40
*/
73
+ * Previous versions of qemu had the ENET_INT_MAC and ENET_INT_TS_TIMER
41
ssys_dev = qdev_new(TYPE_STELLARIS_SYS);
74
+ * interrupts swapped. This worked with older versions of Linux (4.14
42
+ object_property_add_child(soc_container, "sys", OBJECT(ssys_dev));
75
+ * and older) since Linux associated both interrupt lines with Ethernet
43
76
+ * MAC interrupts. Specifically,
44
/*
77
+ * - Linux 4.15 and later have separate interrupt handlers for the MAC and
45
* Most devices come preprogrammed with a MAC address in the user data.
78
+ * timer interrupts. Those versions of Linux fail with versions of QEMU
46
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
79
+ * with swapped interrupt assignments.
47
sysbus_realize_and_unref(SYS_BUS_DEVICE(ssys_dev), &error_fatal);
80
+ * - In linux 4.14, both interrupt lines were registered with the Ethernet
48
81
+ * MAC interrupt handler. As a result, all versions of qemu happen to
49
nvic = qdev_new(TYPE_ARMV7M);
82
+ * work, though that is accidental.
50
+ object_property_add_child(soc_container, "v7m", OBJECT(nvic));
83
+ * - In Linux 4.9 and older, the timer interrupt was registered directly
51
qdev_prop_set_uint32(nvic, "num-irq", NUM_IRQ_LINES);
84
+ * with the Ethernet MAC interrupt handler. The MAC interrupt was
52
qdev_prop_set_uint8(nvic, "num-prio-bits", NUM_PRIO_BITS);
85
+ * redirected to a GPIO interrupt to work around erratum ERR006687.
53
qdev_prop_set_string(nvic, "cpu-type", ms->cpu_type);
86
+ * This was implemented using the SOC's IOMUX block. In qemu, this GPIO
54
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
87
+ * interrupt never fired since IOMUX is currently not supported in qemu.
55
88
+ * Linux instead received MAC interrupts on the timer interrupt.
56
dev = qdev_new(TYPE_STELLARIS_GPTM);
89
+ * As a result, qemu versions with the swapped interrupt assignment work,
57
sbd = SYS_BUS_DEVICE(dev);
90
+ * albeit accidentally, but qemu versions with the correct interrupt
58
+ object_property_add_child(soc_container, "gptm[*]", OBJECT(dev));
91
+ * assignment fail.
59
qdev_connect_clock_in(dev, "clk",
92
+ *
60
qdev_get_clock_out(ssys_dev, "SYSCLK"));
93
+ * To ensure that all versions of Linux work, generate ENET_INT_MAC
61
sysbus_realize_and_unref(sbd, &error_fatal);
94
+ * interrrupts on both interrupt lines. This should be changed if and when
62
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
95
+ * qemu supports IOMUX.
63
96
+ */
64
if (board->dc1 & (1 << 3)) { /* watchdog present */
97
+ if (s->regs[ENET_EIR] & s->regs[ENET_EIMR] &
65
dev = qdev_new(TYPE_LUMINARY_WATCHDOG);
98
+ (ENET_INT_MAC | ENET_INT_TS_TIMER)) {
66
-
99
qemu_set_irq(s->irq[1], 1);
67
+ object_property_add_child(soc_container, "wdg", OBJECT(dev));
100
} else {
68
qdev_connect_clock_in(dev, "WDOGCLK",
101
qemu_set_irq(s->irq[1], 0);
69
qdev_get_clock_out(ssys_dev, "SYSCLK"));
70
71
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
72
SysBusDevice *sbd;
73
74
dev = qdev_new("pl011_luminary");
75
+ object_property_add_child(soc_container, "uart[*]", OBJECT(dev));
76
sbd = SYS_BUS_DEVICE(dev);
77
qdev_prop_set_chr(dev, "chardev", serial_hd(i));
78
sysbus_realize_and_unref(sbd, &error_fatal);
79
@@ -XXX,XX +XXX,XX @@ static void stellaris_init(MachineState *ms, stellaris_board_info *board)
80
DeviceState *enet;
81
82
enet = qdev_new("stellaris_enet");
83
+ object_property_add_child(soc_container, "enet", OBJECT(enet));
84
if (nd) {
85
qdev_set_nic_properties(enet, nd);
86
} else {
102
--
87
--
103
2.16.2
88
2.34.1
104
89
105
90
diff view generated by jsdifflib
New patch
1
We support two different encodings for the AArch32 IMPDEF
2
CBAR register -- older cores like the Cortex A9, A7, A15
3
have this at 4, c15, c0, 0; newer cores like the
4
Cortex A35, A53, A57 and A72 have it at 1 c15 c0 0.
1
5
6
When we implemented this we picked which encoding to
7
use based on whether the CPU set ARM_FEATURE_AARCH64.
8
However this isn't right for three cases:
9
* the qemu-system-arm 'max' CPU, which is supposed to be
10
a variant on a Cortex-A57; it ought to use the same
11
encoding the A57 does and which the AArch64 'max'
12
exposes to AArch32 guest code
13
* the Cortex-R52, which is AArch32-only but has the CBAR
14
at the newer encoding (and where we incorrectly are
15
not yet setting ARM_FEATURE_CBAR_RO anyway)
16
* any possible future support for other v8 AArch32
17
only CPUs, or for supporting "boot the CPU into
18
AArch32 mode" on our existing cores like the A57 etc
19
20
Make the decision of the encoding be based on whether
21
the CPU implements the ARM_FEATURE_V8 flag instead.
22
23
This changes the behaviour only for the qemu-system-arm
24
'-cpu max'. We don't expect anybody to be relying on the
25
old behaviour because:
26
* it's not what the real hardware Cortex-A57 does
27
(and that's what our ID register claims we are)
28
* we don't implement the memory-mapped GICv3 support
29
which is the only thing that exists at the peripheral
30
base address pointed to by the register
31
32
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
33
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
34
Message-id: 20240206132931.38376-2-peter.maydell@linaro.org
35
---
36
target/arm/helper.c | 2 +-
37
1 file changed, 1 insertion(+), 1 deletion(-)
38
39
diff --git a/target/arm/helper.c b/target/arm/helper.c
40
index XXXXXXX..XXXXXXX 100644
41
--- a/target/arm/helper.c
42
+++ b/target/arm/helper.c
43
@@ -XXX,XX +XXX,XX @@ void register_cp_regs_for_features(ARMCPU *cpu)
44
* AArch64 cores we might need to add a specific feature flag
45
* to indicate cores with "flavour 2" CBAR.
46
*/
47
- if (arm_feature(env, ARM_FEATURE_AARCH64)) {
48
+ if (arm_feature(env, ARM_FEATURE_V8)) {
49
/* 32 bit view is [31:18] 0...0 [43:32]. */
50
uint32_t cbar32 = (extract64(cpu->reset_cbar, 18, 14) << 18)
51
| extract64(cpu->reset_cbar, 32, 12);
52
--
53
2.34.1
diff view generated by jsdifflib
New patch
1
The Cortex-R52 implements the Configuration Base Address Register
2
(CBAR), as a read-only register. Add ARM_FEATURE_CBAR_RO to this CPU
3
type, so that our implementation provides the register and the
4
associated qdev property.
1
5
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
8
Message-id: 20240206132931.38376-3-peter.maydell@linaro.org
9
---
10
target/arm/tcg/cpu32.c | 1 +
11
1 file changed, 1 insertion(+)
12
13
diff --git a/target/arm/tcg/cpu32.c b/target/arm/tcg/cpu32.c
14
index XXXXXXX..XXXXXXX 100644
15
--- a/target/arm/tcg/cpu32.c
16
+++ b/target/arm/tcg/cpu32.c
17
@@ -XXX,XX +XXX,XX @@ static void cortex_r52_initfn(Object *obj)
18
set_feature(&cpu->env, ARM_FEATURE_PMSA);
19
set_feature(&cpu->env, ARM_FEATURE_NEON);
20
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
21
+ set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
22
cpu->midr = 0x411fd133; /* r1p3 */
23
cpu->revidr = 0x00000000;
24
cpu->reset_fpsid = 0x41034023;
25
--
26
2.34.1
diff view generated by jsdifflib
New patch
1
Add the Cortex-R52 IMPDEF sysregs, by defining them here and
2
also by enabling the AUXCR feature which defines the ACTLR
3
and HACTLR registers. As is our usual practice, we make these
4
simple reads-as-zero stubs for now.
1
5
6
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
7
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
8
Message-id: 20240206132931.38376-4-peter.maydell@linaro.org
9
---
10
target/arm/tcg/cpu32.c | 108 +++++++++++++++++++++++++++++++++++++++++
11
1 file changed, 108 insertions(+)
12
13
diff --git a/target/arm/tcg/cpu32.c b/target/arm/tcg/cpu32.c
14
index XXXXXXX..XXXXXXX 100644
15
--- a/target/arm/tcg/cpu32.c
16
+++ b/target/arm/tcg/cpu32.c
17
@@ -XXX,XX +XXX,XX @@ static void cortex_r5_initfn(Object *obj)
18
define_arm_cp_regs(cpu, cortexr5_cp_reginfo);
19
}
20
21
+static const ARMCPRegInfo cortex_r52_cp_reginfo[] = {
22
+ { .name = "CPUACTLR", .cp = 15, .opc1 = 0, .crm = 15,
23
+ .access = PL1_RW, .type = ARM_CP_CONST | ARM_CP_64BIT, .resetvalue = 0 },
24
+ { .name = "IMP_ATCMREGIONR",
25
+ .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 0,
26
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
27
+ { .name = "IMP_BTCMREGIONR",
28
+ .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 1,
29
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
30
+ { .name = "IMP_CTCMREGIONR",
31
+ .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 2,
32
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
33
+ { .name = "IMP_CSCTLR",
34
+ .cp = 15, .opc1 = 1, .crn = 9, .crm = 1, .opc2 = 0,
35
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
36
+ { .name = "IMP_BPCTLR",
37
+ .cp = 15, .opc1 = 1, .crn = 9, .crm = 1, .opc2 = 1,
38
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
39
+ { .name = "IMP_MEMPROTCLR",
40
+ .cp = 15, .opc1 = 1, .crn = 9, .crm = 1, .opc2 = 2,
41
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
42
+ { .name = "IMP_SLAVEPCTLR",
43
+ .cp = 15, .opc1 = 0, .crn = 11, .crm = 0, .opc2 = 0,
44
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
45
+ { .name = "IMP_PERIPHREGIONR",
46
+ .cp = 15, .opc1 = 0, .crn = 15, .crm = 0, .opc2 = 0,
47
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
48
+ { .name = "IMP_FLASHIFREGIONR",
49
+ .cp = 15, .opc1 = 0, .crn = 15, .crm = 0, .opc2 = 1,
50
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
51
+ { .name = "IMP_BUILDOPTR",
52
+ .cp = 15, .opc1 = 0, .crn = 15, .crm = 2, .opc2 = 0,
53
+ .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
54
+ { .name = "IMP_PINOPTR",
55
+ .cp = 15, .opc1 = 0, .crn = 15, .crm = 2, .opc2 = 7,
56
+ .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
57
+ { .name = "IMP_QOSR",
58
+ .cp = 15, .opc1 = 1, .crn = 15, .crm = 3, .opc2 = 1,
59
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
60
+ { .name = "IMP_BUSTIMEOUTR",
61
+ .cp = 15, .opc1 = 1, .crn = 15, .crm = 3, .opc2 = 2,
62
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
63
+ { .name = "IMP_INTMONR",
64
+ .cp = 15, .opc1 = 1, .crn = 15, .crm = 3, .opc2 = 4,
65
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
66
+ { .name = "IMP_ICERR0",
67
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 0, .opc2 = 0,
68
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
69
+ { .name = "IMP_ICERR1",
70
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 0, .opc2 = 1,
71
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
72
+ { .name = "IMP_DCERR0",
73
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 1, .opc2 = 0,
74
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
75
+ { .name = "IMP_DCERR1",
76
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 1, .opc2 = 1,
77
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
78
+ { .name = "IMP_TCMERR0",
79
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 2, .opc2 = 0,
80
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
81
+ { .name = "IMP_TCMERR1",
82
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 2, .opc2 = 1,
83
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
84
+ { .name = "IMP_TCMSYNDR0",
85
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 2, .opc2 = 2,
86
+ .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
87
+ { .name = "IMP_TCMSYNDR1",
88
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 2, .opc2 = 3,
89
+ .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
90
+ { .name = "IMP_FLASHERR0",
91
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 3, .opc2 = 0,
92
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
93
+ { .name = "IMP_FLASHERR1",
94
+ .cp = 15, .opc1 = 2, .crn = 15, .crm = 3, .opc2 = 1,
95
+ .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
96
+ { .name = "IMP_CDBGDR0",
97
+ .cp = 15, .opc1 = 3, .crn = 15, .crm = 0, .opc2 = 0,
98
+ .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
99
+ { .name = "IMP_CBDGBR1",
100
+ .cp = 15, .opc1 = 3, .crn = 15, .crm = 0, .opc2 = 1,
101
+ .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
102
+ { .name = "IMP_TESTR0",
103
+ .cp = 15, .opc1 = 4, .crn = 15, .crm = 0, .opc2 = 0,
104
+ .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 },
105
+ { .name = "IMP_TESTR1",
106
+ .cp = 15, .opc1 = 4, .crn = 15, .crm = 0, .opc2 = 1,
107
+ .access = PL1_W, .type = ARM_CP_NOP, .resetvalue = 0 },
108
+ { .name = "IMP_CDBGDCI",
109
+ .cp = 15, .opc1 = 0, .crn = 15, .crm = 15, .opc2 = 0,
110
+ .access = PL1_W, .type = ARM_CP_NOP, .resetvalue = 0 },
111
+ { .name = "IMP_CDBGDCT",
112
+ .cp = 15, .opc1 = 3, .crn = 15, .crm = 2, .opc2 = 0,
113
+ .access = PL1_W, .type = ARM_CP_NOP, .resetvalue = 0 },
114
+ { .name = "IMP_CDBGICT",
115
+ .cp = 15, .opc1 = 3, .crn = 15, .crm = 2, .opc2 = 1,
116
+ .access = PL1_W, .type = ARM_CP_NOP, .resetvalue = 0 },
117
+ { .name = "IMP_CDBGDCD",
118
+ .cp = 15, .opc1 = 3, .crn = 15, .crm = 4, .opc2 = 0,
119
+ .access = PL1_W, .type = ARM_CP_NOP, .resetvalue = 0 },
120
+ { .name = "IMP_CDBGICD",
121
+ .cp = 15, .opc1 = 3, .crn = 15, .crm = 4, .opc2 = 1,
122
+ .access = PL1_W, .type = ARM_CP_NOP, .resetvalue = 0 },
123
+};
124
+
125
+
126
static void cortex_r52_initfn(Object *obj)
127
{
128
ARMCPU *cpu = ARM_CPU(obj);
129
@@ -XXX,XX +XXX,XX @@ static void cortex_r52_initfn(Object *obj)
130
set_feature(&cpu->env, ARM_FEATURE_NEON);
131
set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
132
set_feature(&cpu->env, ARM_FEATURE_CBAR_RO);
133
+ set_feature(&cpu->env, ARM_FEATURE_AUXCR);
134
cpu->midr = 0x411fd133; /* r1p3 */
135
cpu->revidr = 0x00000000;
136
cpu->reset_fpsid = 0x41034023;
137
@@ -XXX,XX +XXX,XX @@ static void cortex_r52_initfn(Object *obj)
138
139
cpu->pmsav7_dregion = 16;
140
cpu->pmsav8r_hdregion = 16;
141
+
142
+ define_arm_cp_regs(cpu, cortex_r52_cp_reginfo);
143
}
144
145
static void cortex_r5f_initfn(Object *obj)
146
--
147
2.34.1
diff view generated by jsdifflib
New patch
1
Architecturally, the AArch32 MSR/MRS to/from banked register
2
instructions are UNPREDICTABLE for attempts to access a banked
3
register that the guest could access in a more direct way (e.g.
4
using this insn to access r8_fiq when already in FIQ mode). QEMU has
5
chosen to UNDEF on all of these.
1
6
7
However, for the case of accessing SPSR_hyp from hyp mode, it turns
8
out that real hardware permits this, with the same effect as if the
9
guest had directly written to SPSR. Further, there is some
10
guest code out there that assumes it can do this, because it
11
happens to work on hardware: an example Cortex-R52 startup code
12
fragment uses this, and it got copied into various other places,
13
including Zephyr. Zephyr was fixed to not use this:
14
https://github.com/zephyrproject-rtos/zephyr/issues/47330
15
but other examples are still out there, like the selftest
16
binary for the MPS3-AN536.
17
18
For convenience of being able to run guest code, permit
19
this UNPREDICTABLE access instead of UNDEFing it.
20
21
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
22
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
23
Message-id: 20240206132931.38376-5-peter.maydell@linaro.org
24
---
25
target/arm/tcg/op_helper.c | 43 ++++++++++++++++++++++++++------------
26
target/arm/tcg/translate.c | 19 +++++++++++------
27
2 files changed, 43 insertions(+), 19 deletions(-)
28
29
diff --git a/target/arm/tcg/op_helper.c b/target/arm/tcg/op_helper.c
30
index XXXXXXX..XXXXXXX 100644
31
--- a/target/arm/tcg/op_helper.c
32
+++ b/target/arm/tcg/op_helper.c
33
@@ -XXX,XX +XXX,XX @@ static void msr_mrs_banked_exc_checks(CPUARMState *env, uint32_t tgtmode,
34
*/
35
int curmode = env->uncached_cpsr & CPSR_M;
36
37
- if (regno == 17) {
38
- /* ELR_Hyp: a special case because access from tgtmode is OK */
39
- if (curmode != ARM_CPU_MODE_HYP && curmode != ARM_CPU_MODE_MON) {
40
- goto undef;
41
+ if (tgtmode == ARM_CPU_MODE_HYP) {
42
+ /*
43
+ * Handle Hyp target regs first because some are special cases
44
+ * which don't want the usual "not accessible from tgtmode" check.
45
+ */
46
+ switch (regno) {
47
+ case 16 ... 17: /* ELR_Hyp, SPSR_Hyp */
48
+ if (curmode != ARM_CPU_MODE_HYP && curmode != ARM_CPU_MODE_MON) {
49
+ goto undef;
50
+ }
51
+ break;
52
+ case 13:
53
+ if (curmode != ARM_CPU_MODE_MON) {
54
+ goto undef;
55
+ }
56
+ break;
57
+ default:
58
+ g_assert_not_reached();
59
}
60
return;
61
}
62
@@ -XXX,XX +XXX,XX @@ static void msr_mrs_banked_exc_checks(CPUARMState *env, uint32_t tgtmode,
63
}
64
}
65
66
- if (tgtmode == ARM_CPU_MODE_HYP) {
67
- /* SPSR_Hyp, r13_hyp: accessible from Monitor mode only */
68
- if (curmode != ARM_CPU_MODE_MON) {
69
- goto undef;
70
- }
71
- }
72
-
73
return;
74
75
undef:
76
@@ -XXX,XX +XXX,XX @@ void HELPER(msr_banked)(CPUARMState *env, uint32_t value, uint32_t tgtmode,
77
78
switch (regno) {
79
case 16: /* SPSRs */
80
- env->banked_spsr[bank_number(tgtmode)] = value;
81
+ if (tgtmode == (env->uncached_cpsr & CPSR_M)) {
82
+ /* Only happens for SPSR_Hyp access in Hyp mode */
83
+ env->spsr = value;
84
+ } else {
85
+ env->banked_spsr[bank_number(tgtmode)] = value;
86
+ }
87
break;
88
case 17: /* ELR_Hyp */
89
env->elr_el[2] = value;
90
@@ -XXX,XX +XXX,XX @@ uint32_t HELPER(mrs_banked)(CPUARMState *env, uint32_t tgtmode, uint32_t regno)
91
92
switch (regno) {
93
case 16: /* SPSRs */
94
- return env->banked_spsr[bank_number(tgtmode)];
95
+ if (tgtmode == (env->uncached_cpsr & CPSR_M)) {
96
+ /* Only happens for SPSR_Hyp access in Hyp mode */
97
+ return env->spsr;
98
+ } else {
99
+ return env->banked_spsr[bank_number(tgtmode)];
100
+ }
101
case 17: /* ELR_Hyp */
102
return env->elr_el[2];
103
case 13:
104
diff --git a/target/arm/tcg/translate.c b/target/arm/tcg/translate.c
105
index XXXXXXX..XXXXXXX 100644
106
--- a/target/arm/tcg/translate.c
107
+++ b/target/arm/tcg/translate.c
108
@@ -XXX,XX +XXX,XX @@ static bool msr_banked_access_decode(DisasContext *s, int r, int sysm, int rn,
109
break;
110
case ARM_CPU_MODE_HYP:
111
/*
112
- * SPSR_hyp and r13_hyp can only be accessed from Monitor mode
113
- * (and so we can forbid accesses from EL2 or below). elr_hyp
114
- * can be accessed also from Hyp mode, so forbid accesses from
115
- * EL0 or EL1.
116
+ * r13_hyp can only be accessed from Monitor mode, and so we
117
+ * can forbid accesses from EL2 or below.
118
+ * elr_hyp can be accessed also from Hyp mode, so forbid
119
+ * accesses from EL0 or EL1.
120
+ * SPSR_hyp is supposed to be in the same category as r13_hyp
121
+ * and UNPREDICTABLE if accessed from anything except Monitor
122
+ * mode. However there is some real-world code that will do
123
+ * it because at least some hardware happens to permit the
124
+ * access. (Notably a standard Cortex-R52 startup code fragment
125
+ * does this.) So we permit SPSR_hyp from Hyp mode also, to allow
126
+ * this (incorrect) guest code to run.
127
*/
128
- if (!arm_dc_feature(s, ARM_FEATURE_EL2) || s->current_el < 2 ||
129
- (s->current_el < 3 && *regno != 17)) {
130
+ if (!arm_dc_feature(s, ARM_FEATURE_EL2) || s->current_el < 2
131
+ || (s->current_el < 3 && *regno != 16 && *regno != 17)) {
132
goto undef;
133
}
134
break;
135
--
136
2.34.1
diff view generated by jsdifflib
1
The TypeInfo and state struct for bcm2386 disagree about what the
1
We currently guard the CFG3 register read with
2
parent class is -- the TypeInfo says it's TYPE_SYS_BUS_DEVICE,
2
(scc_partno(s) == 0x524 && scc_partno(s) == 0x547)
3
but the BCM2386State struct only defines the parent_obj field
3
which is clearly wrong as it is never true.
4
as DeviceState. This would have caused problems if anything
5
actually tried to treat the object as a TYPE_SYS_BUS_DEVICE.
6
Fix the TypeInfo to use TYPE_DEVICE as the parent, since we don't
7
need any of the additional functionality TYPE_SYS_BUS_DEVICE
8
provides.
9
4
5
This register is present on all board types except AN524
6
and AN527; correct the condition.
7
8
Fixes: 6ac80818941829c0 ("hw/misc/mps2-scc: Implement changes for AN547")
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
Reviewed-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
10
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
12
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
11
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
13
Message-id: 20180313153458.26822-5-peter.maydell@linaro.org
12
Message-id: 20240206132931.38376-6-peter.maydell@linaro.org
14
---
13
---
15
hw/arm/bcm2836.c | 2 +-
14
hw/misc/mps2-scc.c | 2 +-
16
1 file changed, 1 insertion(+), 1 deletion(-)
15
1 file changed, 1 insertion(+), 1 deletion(-)
17
16
18
diff --git a/hw/arm/bcm2836.c b/hw/arm/bcm2836.c
17
diff --git a/hw/misc/mps2-scc.c b/hw/misc/mps2-scc.c
19
index XXXXXXX..XXXXXXX 100644
18
index XXXXXXX..XXXXXXX 100644
20
--- a/hw/arm/bcm2836.c
19
--- a/hw/misc/mps2-scc.c
21
+++ b/hw/arm/bcm2836.c
20
+++ b/hw/misc/mps2-scc.c
22
@@ -XXX,XX +XXX,XX @@ static void bcm2836_class_init(ObjectClass *oc, void *data)
21
@@ -XXX,XX +XXX,XX @@ static uint64_t mps2_scc_read(void *opaque, hwaddr offset, unsigned size)
23
22
r = s->cfg2;
24
static const TypeInfo bcm2836_type_info = {
23
break;
25
.name = TYPE_BCM2836,
24
case A_CFG3:
26
- .parent = TYPE_SYS_BUS_DEVICE,
25
- if (scc_partno(s) == 0x524 && scc_partno(s) == 0x547) {
27
+ .parent = TYPE_DEVICE,
26
+ if (scc_partno(s) == 0x524 || scc_partno(s) == 0x547) {
28
.instance_size = sizeof(BCM2836State),
27
/* CFG3 reserved on AN524 */
29
.instance_init = bcm2836_init,
28
goto bad_offset;
30
.class_init = bcm2836_class_init,
29
}
31
--
30
--
32
2.16.2
31
2.34.1
33
32
34
33
diff view generated by jsdifflib
1
Our BCM2836 type is really a generic one that can be any of
1
The MPS SCC device has a lot of different flavours for the various
2
the bcm283x family. Rename it accordingly. We change only
2
different MPS FPGA images, which look mostly similar but have
3
the names which are visible via the header file to the
3
differences in how particular registers are handled. Currently we
4
rest of the QEMU code, leaving private function names
4
deal with this with a lot of open-coded checks on scc_partno(), but
5
in bcm2836.c as they are.
5
as we add more board types this is getting a bit hard to read.
6
6
7
This is a preliminary to making bcm283x be an abstract
7
Factor out the conditions into some functions which we can
8
parent class to specific types for the bcm2836 and bcm2837.
8
give more descriptive names to.
9
9
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
11
Reviewed-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
11
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
12
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
12
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
13
Message-id: 20180313153458.26822-6-peter.maydell@linaro.org
13
Message-id: 20240206132931.38376-7-peter.maydell@linaro.org
14
---
14
---
15
include/hw/arm/bcm2836.h | 12 ++++++------
15
hw/misc/mps2-scc.c | 45 +++++++++++++++++++++++++++++++--------------
16
hw/arm/bcm2836.c | 17 +++++++++--------
16
1 file changed, 31 insertions(+), 14 deletions(-)
17
hw/arm/raspi.c | 16 ++++++++--------
18
3 files changed, 23 insertions(+), 22 deletions(-)
19
17
20
diff --git a/include/hw/arm/bcm2836.h b/include/hw/arm/bcm2836.h
18
diff --git a/hw/misc/mps2-scc.c b/hw/misc/mps2-scc.c
21
index XXXXXXX..XXXXXXX 100644
19
index XXXXXXX..XXXXXXX 100644
22
--- a/include/hw/arm/bcm2836.h
20
--- a/hw/misc/mps2-scc.c
23
+++ b/include/hw/arm/bcm2836.h
21
+++ b/hw/misc/mps2-scc.c
24
@@ -XXX,XX +XXX,XX @@
22
@@ -XXX,XX +XXX,XX @@ static int scc_partno(MPS2SCC *s)
25
#include "hw/arm/bcm2835_peripherals.h"
23
return extract32(s->id, 4, 8);
26
#include "hw/intc/bcm2836_control.h"
27
28
-#define TYPE_BCM2836 "bcm2836"
29
-#define BCM2836(obj) OBJECT_CHECK(BCM2836State, (obj), TYPE_BCM2836)
30
+#define TYPE_BCM283X "bcm283x"
31
+#define BCM283X(obj) OBJECT_CHECK(BCM283XState, (obj), TYPE_BCM283X)
32
33
-#define BCM2836_NCPUS 4
34
+#define BCM283X_NCPUS 4
35
36
-typedef struct BCM2836State {
37
+typedef struct BCM283XState {
38
/*< private >*/
39
DeviceState parent_obj;
40
/*< public >*/
41
@@ -XXX,XX +XXX,XX @@ typedef struct BCM2836State {
42
char *cpu_type;
43
uint32_t enabled_cpus;
44
45
- ARMCPU cpus[BCM2836_NCPUS];
46
+ ARMCPU cpus[BCM283X_NCPUS];
47
BCM2836ControlState control;
48
BCM2835PeripheralState peripherals;
49
-} BCM2836State;
50
+} BCM283XState;
51
52
#endif /* BCM2836_H */
53
diff --git a/hw/arm/bcm2836.c b/hw/arm/bcm2836.c
54
index XXXXXXX..XXXXXXX 100644
55
--- a/hw/arm/bcm2836.c
56
+++ b/hw/arm/bcm2836.c
57
@@ -XXX,XX +XXX,XX @@
58
59
static void bcm2836_init(Object *obj)
60
{
61
- BCM2836State *s = BCM2836(obj);
62
+ BCM283XState *s = BCM283X(obj);
63
64
object_initialize(&s->control, sizeof(s->control), TYPE_BCM2836_CONTROL);
65
object_property_add_child(obj, "control", OBJECT(&s->control), NULL);
66
@@ -XXX,XX +XXX,XX @@ static void bcm2836_init(Object *obj)
67
68
static void bcm2836_realize(DeviceState *dev, Error **errp)
69
{
70
- BCM2836State *s = BCM2836(dev);
71
+ BCM283XState *s = BCM283X(dev);
72
Object *obj;
73
Error *err = NULL;
74
int n;
75
@@ -XXX,XX +XXX,XX @@ static void bcm2836_realize(DeviceState *dev, Error **errp)
76
/* common peripherals from bcm2835 */
77
78
obj = OBJECT(dev);
79
- for (n = 0; n < BCM2836_NCPUS; n++) {
80
+ for (n = 0; n < BCM283X_NCPUS; n++) {
81
object_initialize(&s->cpus[n], sizeof(s->cpus[n]),
82
s->cpu_type);
83
object_property_add_child(obj, "cpu[*]", OBJECT(&s->cpus[n]),
84
@@ -XXX,XX +XXX,XX @@ static void bcm2836_realize(DeviceState *dev, Error **errp)
85
sysbus_connect_irq(SYS_BUS_DEVICE(&s->peripherals), 1,
86
qdev_get_gpio_in_named(DEVICE(&s->control), "gpu-fiq", 0));
87
88
- for (n = 0; n < BCM2836_NCPUS; n++) {
89
+ for (n = 0; n < BCM283X_NCPUS; n++) {
90
/* Mirror bcm2836, which has clusterid set to 0xf
91
* TODO: this should be converted to a property of ARM_CPU
92
*/
93
@@ -XXX,XX +XXX,XX @@ static void bcm2836_realize(DeviceState *dev, Error **errp)
94
}
24
}
95
25
96
static Property bcm2836_props[] = {
26
+/* Is CFG_REG2 present? */
97
- DEFINE_PROP_STRING("cpu-type", BCM2836State, cpu_type),
27
+static bool have_cfg2(MPS2SCC *s)
98
- DEFINE_PROP_UINT32("enabled-cpus", BCM2836State, enabled_cpus, BCM2836_NCPUS),
28
+{
99
+ DEFINE_PROP_STRING("cpu-type", BCM283XState, cpu_type),
29
+ return scc_partno(s) == 0x524 || scc_partno(s) == 0x547;
100
+ DEFINE_PROP_UINT32("enabled-cpus", BCM283XState, enabled_cpus,
30
+}
101
+ BCM283X_NCPUS),
31
+
102
DEFINE_PROP_END_OF_LIST()
32
+/* Is CFG_REG3 present? */
103
};
33
+static bool have_cfg3(MPS2SCC *s)
104
34
+{
105
@@ -XXX,XX +XXX,XX @@ static void bcm2836_class_init(ObjectClass *oc, void *data)
35
+ return scc_partno(s) != 0x524 && scc_partno(s) != 0x547;
106
}
36
+}
107
37
+
108
static const TypeInfo bcm2836_type_info = {
38
+/* Is CFG_REG5 present? */
109
- .name = TYPE_BCM2836,
39
+static bool have_cfg5(MPS2SCC *s)
110
+ .name = TYPE_BCM283X,
40
+{
111
.parent = TYPE_DEVICE,
41
+ return scc_partno(s) == 0x524 || scc_partno(s) == 0x547;
112
- .instance_size = sizeof(BCM2836State),
42
+}
113
+ .instance_size = sizeof(BCM283XState),
43
+
114
.instance_init = bcm2836_init,
44
+/* Is CFG_REG6 present? */
115
.class_init = bcm2836_class_init,
45
+static bool have_cfg6(MPS2SCC *s)
116
};
46
+{
117
diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
47
+ return scc_partno(s) == 0x524;
118
index XXXXXXX..XXXXXXX 100644
48
+}
119
--- a/hw/arm/raspi.c
49
+
120
+++ b/hw/arm/raspi.c
50
/* Handle a write via the SYS_CFG channel to the specified function/device.
121
@@ -XXX,XX +XXX,XX @@
51
* Return false on error (reported to guest via SYS_CFGCTRL ERROR bit).
122
static const int raspi_boardid[] = {[1] = 0xc42, [2] = 0xc43, [3] = 0xc44};
52
*/
123
53
@@ -XXX,XX +XXX,XX @@ static uint64_t mps2_scc_read(void *opaque, hwaddr offset, unsigned size)
124
typedef struct RasPiState {
54
r = s->cfg1;
125
- BCM2836State soc;
55
break;
126
+ BCM283XState soc;
56
case A_CFG2:
127
MemoryRegion ram;
57
- if (scc_partno(s) != 0x524 && scc_partno(s) != 0x547) {
128
} RasPiState;
58
- /* CFG2 reserved on other boards */
129
59
+ if (!have_cfg2(s)) {
130
@@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, int version)
60
goto bad_offset;
131
BusState *bus;
61
}
132
DeviceState *carddev;
62
r = s->cfg2;
133
63
break;
134
- object_initialize(&s->soc, sizeof(s->soc), TYPE_BCM2836);
64
case A_CFG3:
135
+ object_initialize(&s->soc, sizeof(s->soc), TYPE_BCM283X);
65
- if (scc_partno(s) == 0x524 || scc_partno(s) == 0x547) {
136
object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
66
- /* CFG3 reserved on AN524 */
137
&error_abort);
67
+ if (!have_cfg3(s)) {
138
68
goto bad_offset;
139
@@ -XXX,XX +XXX,XX @@ static void raspi2_machine_init(MachineClass *mc)
69
}
140
mc->no_floppy = 1;
70
/* These are user-settable DIP switches on the board. We don't
141
mc->no_cdrom = 1;
71
@@ -XXX,XX +XXX,XX @@ static uint64_t mps2_scc_read(void *opaque, hwaddr offset, unsigned size)
142
mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a15");
72
r = s->cfg4;
143
- mc->max_cpus = BCM2836_NCPUS;
73
break;
144
- mc->min_cpus = BCM2836_NCPUS;
74
case A_CFG5:
145
- mc->default_cpus = BCM2836_NCPUS;
75
- if (scc_partno(s) != 0x524 && scc_partno(s) != 0x547) {
146
+ mc->max_cpus = BCM283X_NCPUS;
76
- /* CFG5 reserved on other boards */
147
+ mc->min_cpus = BCM283X_NCPUS;
77
+ if (!have_cfg5(s)) {
148
+ mc->default_cpus = BCM283X_NCPUS;
78
goto bad_offset;
149
mc->default_ram_size = 1024 * 1024 * 1024;
79
}
150
mc->ignore_memory_transaction_failures = true;
80
r = s->cfg5;
151
};
81
break;
152
@@ -XXX,XX +XXX,XX @@ static void raspi3_machine_init(MachineClass *mc)
82
case A_CFG6:
153
mc->no_floppy = 1;
83
- if (scc_partno(s) != 0x524) {
154
mc->no_cdrom = 1;
84
- /* CFG6 reserved on other boards */
155
mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a53");
85
+ if (!have_cfg6(s)) {
156
- mc->max_cpus = BCM2836_NCPUS;
86
goto bad_offset;
157
- mc->min_cpus = BCM2836_NCPUS;
87
}
158
- mc->default_cpus = BCM2836_NCPUS;
88
r = s->cfg6;
159
+ mc->max_cpus = BCM283X_NCPUS;
89
@@ -XXX,XX +XXX,XX @@ static void mps2_scc_write(void *opaque, hwaddr offset, uint64_t value,
160
+ mc->min_cpus = BCM283X_NCPUS;
90
}
161
+ mc->default_cpus = BCM283X_NCPUS;
91
break;
162
mc->default_ram_size = 1024 * 1024 * 1024;
92
case A_CFG2:
163
}
93
- if (scc_partno(s) != 0x524 && scc_partno(s) != 0x547) {
164
DEFINE_MACHINE("raspi3", raspi3_machine_init)
94
- /* CFG2 reserved on other boards */
95
+ if (!have_cfg2(s)) {
96
goto bad_offset;
97
}
98
/* AN524: QSPI Select signal */
99
s->cfg2 = value;
100
break;
101
case A_CFG5:
102
- if (scc_partno(s) != 0x524 && scc_partno(s) != 0x547) {
103
- /* CFG5 reserved on other boards */
104
+ if (!have_cfg5(s)) {
105
goto bad_offset;
106
}
107
/* AN524: ACLK frequency in Hz */
108
s->cfg5 = value;
109
break;
110
case A_CFG6:
111
- if (scc_partno(s) != 0x524) {
112
- /* CFG6 reserved on other boards */
113
+ if (!have_cfg6(s)) {
114
goto bad_offset;
115
}
116
/* AN524: Clock divider for BRAM */
165
--
117
--
166
2.16.2
118
2.34.1
167
119
168
120
diff view generated by jsdifflib
New patch
1
1
The MPS2 SCC device is broadly the same for all FPGA images, but has
2
minor differences in the behaviour of the CFG registers depending on
3
the image. In many cases we don't really care about the functionality
4
controlled by these registers and a reads-as-written or similar
5
behaviour is sufficient for the moment.
6
7
For the AN536 the required behaviour is:
8
9
* A_CFG0 has CPU reset and halt bits
10
- implement as reads-as-written for the moment
11
* A_CFG1 has flash or ATCM address 0 remap handling
12
- QEMU doesn't model this; implement as reads-as-written
13
* A_CFG2 has QSPI select (like AN524)
14
- implemented (no behaviour, as with AN524)
15
* A_CFG3 is MCC_MSB_ADDR "additional MCC addressing bits"
16
- QEMU doesn't care about these, so use the existing
17
RAZ behaviour for convenience
18
* A_CFG4 is board rev (like all other images)
19
- no change needed
20
* A_CFG5 is ACLK frq in hz (like AN524)
21
- implemented as reads-as-written, as for other boards
22
* A_CFG6 is core 0 vector table base address
23
- implemented as reads-as-written for the moment
24
* A_CFG7 is core 1 vector table base address
25
- implemented as reads-as-written for the moment
26
27
Make the changes necessary for this; leave TODO comments where
28
appropriate to indicate where we might want to come back and
29
implement things like CPU reset.
30
31
The other aspects of the device specific to this FPGA image (like the
32
values of the board ID and similar registers) will be set via the
33
device's qdev properties.
34
35
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
36
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
37
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
38
Message-id: 20240206132931.38376-8-peter.maydell@linaro.org
39
---
40
include/hw/misc/mps2-scc.h | 1 +
41
hw/misc/mps2-scc.c | 101 +++++++++++++++++++++++++++++++++----
42
2 files changed, 92 insertions(+), 10 deletions(-)
43
44
diff --git a/include/hw/misc/mps2-scc.h b/include/hw/misc/mps2-scc.h
45
index XXXXXXX..XXXXXXX 100644
46
--- a/include/hw/misc/mps2-scc.h
47
+++ b/include/hw/misc/mps2-scc.h
48
@@ -XXX,XX +XXX,XX @@ struct MPS2SCC {
49
uint32_t cfg4;
50
uint32_t cfg5;
51
uint32_t cfg6;
52
+ uint32_t cfg7;
53
uint32_t cfgdata_rtn;
54
uint32_t cfgdata_out;
55
uint32_t cfgctrl;
56
diff --git a/hw/misc/mps2-scc.c b/hw/misc/mps2-scc.c
57
index XXXXXXX..XXXXXXX 100644
58
--- a/hw/misc/mps2-scc.c
59
+++ b/hw/misc/mps2-scc.c
60
@@ -XXX,XX +XXX,XX @@ REG32(CFG3, 0xc)
61
REG32(CFG4, 0x10)
62
REG32(CFG5, 0x14)
63
REG32(CFG6, 0x18)
64
+REG32(CFG7, 0x1c)
65
REG32(CFGDATA_RTN, 0xa0)
66
REG32(CFGDATA_OUT, 0xa4)
67
REG32(CFGCTRL, 0xa8)
68
@@ -XXX,XX +XXX,XX @@ static int scc_partno(MPS2SCC *s)
69
/* Is CFG_REG2 present? */
70
static bool have_cfg2(MPS2SCC *s)
71
{
72
- return scc_partno(s) == 0x524 || scc_partno(s) == 0x547;
73
+ return scc_partno(s) == 0x524 || scc_partno(s) == 0x547 ||
74
+ scc_partno(s) == 0x536;
75
}
76
77
/* Is CFG_REG3 present? */
78
static bool have_cfg3(MPS2SCC *s)
79
{
80
- return scc_partno(s) != 0x524 && scc_partno(s) != 0x547;
81
+ return scc_partno(s) != 0x524 && scc_partno(s) != 0x547 &&
82
+ scc_partno(s) != 0x536;
83
}
84
85
/* Is CFG_REG5 present? */
86
static bool have_cfg5(MPS2SCC *s)
87
{
88
- return scc_partno(s) == 0x524 || scc_partno(s) == 0x547;
89
+ return scc_partno(s) == 0x524 || scc_partno(s) == 0x547 ||
90
+ scc_partno(s) == 0x536;
91
}
92
93
/* Is CFG_REG6 present? */
94
static bool have_cfg6(MPS2SCC *s)
95
{
96
- return scc_partno(s) == 0x524;
97
+ return scc_partno(s) == 0x524 || scc_partno(s) == 0x536;
98
+}
99
+
100
+/* Is CFG_REG7 present? */
101
+static bool have_cfg7(MPS2SCC *s)
102
+{
103
+ return scc_partno(s) == 0x536;
104
+}
105
+
106
+/* Does CFG_REG0 drive the 'remap' GPIO output? */
107
+static bool cfg0_is_remap(MPS2SCC *s)
108
+{
109
+ return scc_partno(s) != 0x536;
110
+}
111
+
112
+/* Is CFG_REG1 driving a set of LEDs? */
113
+static bool cfg1_is_leds(MPS2SCC *s)
114
+{
115
+ return scc_partno(s) != 0x536;
116
}
117
118
/* Handle a write via the SYS_CFG channel to the specified function/device.
119
@@ -XXX,XX +XXX,XX @@ static uint64_t mps2_scc_read(void *opaque, hwaddr offset, unsigned size)
120
if (!have_cfg3(s)) {
121
goto bad_offset;
122
}
123
- /* These are user-settable DIP switches on the board. We don't
124
+ /*
125
+ * These are user-settable DIP switches on the board. We don't
126
* model that, so just return zeroes.
127
+ *
128
+ * TODO: for AN536 this is MCC_MSB_ADDR "additional MCC addressing
129
+ * bits". These change which part of the DDR4 the motherboard
130
+ * configuration controller can see in its memory map (see the
131
+ * appnote section 2.4). QEMU doesn't model the MCC at all, so these
132
+ * bits are not interesting to us; read-as-zero is as good as anything
133
+ * else.
134
*/
135
r = 0;
136
break;
137
@@ -XXX,XX +XXX,XX @@ static uint64_t mps2_scc_read(void *opaque, hwaddr offset, unsigned size)
138
}
139
r = s->cfg6;
140
break;
141
+ case A_CFG7:
142
+ if (!have_cfg7(s)) {
143
+ goto bad_offset;
144
+ }
145
+ r = s->cfg7;
146
+ break;
147
case A_CFGDATA_RTN:
148
r = s->cfgdata_rtn;
149
break;
150
@@ -XXX,XX +XXX,XX @@ static void mps2_scc_write(void *opaque, hwaddr offset, uint64_t value,
151
* we always reflect bit 0 in the 'remap' GPIO output line,
152
* and let the board wire it up or not as it chooses.
153
* TODO on some boards bit 1 is CPU_WAIT.
154
+ *
155
+ * TODO: on the AN536 this register controls reset and halt
156
+ * for both CPUs. For the moment we don't implement this, so the
157
+ * register just reads as written.
158
*/
159
s->cfg0 = value;
160
- qemu_set_irq(s->remap, s->cfg0 & 1);
161
+ if (cfg0_is_remap(s)) {
162
+ qemu_set_irq(s->remap, s->cfg0 & 1);
163
+ }
164
break;
165
case A_CFG1:
166
s->cfg1 = value;
167
- for (size_t i = 0; i < ARRAY_SIZE(s->led); i++) {
168
- led_set_state(s->led[i], extract32(value, i, 1));
169
+ /*
170
+ * On most boards this register drives LEDs.
171
+ *
172
+ * TODO: for AN536 this controls whether flash and ATCM are
173
+ * enabled or disabled on reset. QEMU doesn't model this, and
174
+ * always wires up RAM in the ATCM area and ROM in the flash area.
175
+ */
176
+ if (cfg1_is_leds(s)) {
177
+ for (size_t i = 0; i < ARRAY_SIZE(s->led); i++) {
178
+ led_set_state(s->led[i], extract32(value, i, 1));
179
+ }
180
}
181
break;
182
case A_CFG2:
183
if (!have_cfg2(s)) {
184
goto bad_offset;
185
}
186
- /* AN524: QSPI Select signal */
187
+ /* AN524, AN536: QSPI Select signal */
188
s->cfg2 = value;
189
break;
190
case A_CFG5:
191
if (!have_cfg5(s)) {
192
goto bad_offset;
193
}
194
- /* AN524: ACLK frequency in Hz */
195
+ /* AN524, AN536: ACLK frequency in Hz */
196
s->cfg5 = value;
197
break;
198
case A_CFG6:
199
@@ -XXX,XX +XXX,XX @@ static void mps2_scc_write(void *opaque, hwaddr offset, uint64_t value,
200
goto bad_offset;
201
}
202
/* AN524: Clock divider for BRAM */
203
+ /* AN536: Core 0 vector table base address */
204
+ s->cfg6 = value;
205
+ break;
206
+ case A_CFG7:
207
+ if (!have_cfg7(s)) {
208
+ goto bad_offset;
209
+ }
210
+ /* AN536: Core 1 vector table base address */
211
s->cfg6 = value;
212
break;
213
case A_CFGDATA_OUT:
214
@@ -XXX,XX +XXX,XX @@ static void mps2_scc_finalize(Object *obj)
215
g_free(s->oscclk_reset);
216
}
217
218
+static bool cfg7_needed(void *opaque)
219
+{
220
+ MPS2SCC *s = opaque;
221
+
222
+ return have_cfg7(s);
223
+}
224
+
225
+static const VMStateDescription vmstate_cfg7 = {
226
+ .name = "mps2-scc/cfg7",
227
+ .version_id = 1,
228
+ .minimum_version_id = 1,
229
+ .needed = cfg7_needed,
230
+ .fields = (const VMStateField[]) {
231
+ VMSTATE_UINT32(cfg7, MPS2SCC),
232
+ VMSTATE_END_OF_LIST()
233
+ }
234
+};
235
+
236
static const VMStateDescription mps2_scc_vmstate = {
237
.name = "mps2-scc",
238
.version_id = 3,
239
@@ -XXX,XX +XXX,XX @@ static const VMStateDescription mps2_scc_vmstate = {
240
VMSTATE_VARRAY_UINT32(oscclk, MPS2SCC, num_oscclk,
241
0, vmstate_info_uint32, uint32_t),
242
VMSTATE_END_OF_LIST()
243
+ },
244
+ .subsections = (const VMStateDescription * const []) {
245
+ &vmstate_cfg7,
246
+ NULL
247
}
248
};
249
250
--
251
2.34.1
252
253
diff view generated by jsdifflib
1
The bcm2837 is pretty similar to the bcm2836, but it does have
1
The AN536 is another FPGA image for the MPS3 development board. Unlike
2
some differences. Notably, the MPIDR affinity aff1 values it
2
the existing FPGA images we already model, this board uses a Cortex-R
3
sets for the CPUs are 0x0, rather than the 0xf that the bcm2836
3
family CPU, and it does not use any equivalent to the M-profile
4
uses, and if this is wrong Linux will not boot.
4
"Subsystem for Embedded" SoC-equivalent that we model in hw/arm/armsse.c.
5
5
It's therefore more convenient for us to model it as a completely
6
Rather than trying to have one device with properties that
6
separate C file.
7
configure it differently for the two cases, create two
7
8
separate QOM devices for the two SoCs. We use the same approach
8
This commit adds the basic skeleton of the board model, and the
9
as hw/arm/aspeed_soc.c and share code and have a data table
9
code to create all the RAM and ROM. We assume that we're probably
10
that might differ per-SoC. For the moment the two types don't
10
going to want to add more images in future, so use the same
11
actually have different behaviour.
11
base class/subclass setup that mps2-tz.c uses, even though at
12
the moment there's only a single subclass.
13
14
Following commits will add the CPUs and the peripherals.
12
15
13
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
16
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
14
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
17
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
15
Message-id: 20180313153458.26822-7-peter.maydell@linaro.org
18
Message-id: 20240206132931.38376-9-peter.maydell@linaro.org
16
---
19
---
17
include/hw/arm/bcm2836.h | 19 +++++++++++++++++++
20
MAINTAINERS | 3 +-
18
hw/arm/bcm2836.c | 37 ++++++++++++++++++++++++++++++++-----
21
configs/devices/arm-softmmu/default.mak | 1 +
19
hw/arm/raspi.c | 3 ++-
22
hw/arm/mps3r.c | 239 ++++++++++++++++++++++++
20
3 files changed, 53 insertions(+), 6 deletions(-)
23
hw/arm/Kconfig | 5 +
21
24
hw/arm/meson.build | 1 +
22
diff --git a/include/hw/arm/bcm2836.h b/include/hw/arm/bcm2836.h
25
5 files changed, 248 insertions(+), 1 deletion(-)
26
create mode 100644 hw/arm/mps3r.c
27
28
diff --git a/MAINTAINERS b/MAINTAINERS
23
index XXXXXXX..XXXXXXX 100644
29
index XXXXXXX..XXXXXXX 100644
24
--- a/include/hw/arm/bcm2836.h
30
--- a/MAINTAINERS
25
+++ b/include/hw/arm/bcm2836.h
31
+++ b/MAINTAINERS
32
@@ -XXX,XX +XXX,XX @@ F: include/hw/misc/imx7_*.h
33
F: hw/pci-host/designware.c
34
F: include/hw/pci-host/designware.h
35
36
-MPS2
37
+MPS2 / MPS3
38
M: Peter Maydell <peter.maydell@linaro.org>
39
L: qemu-arm@nongnu.org
40
S: Maintained
41
F: hw/arm/mps2.c
42
F: hw/arm/mps2-tz.c
43
+F: hw/arm/mps3r.c
44
F: hw/misc/mps2-*.c
45
F: include/hw/misc/mps2-*.h
46
F: hw/arm/armsse.c
47
diff --git a/configs/devices/arm-softmmu/default.mak b/configs/devices/arm-softmmu/default.mak
48
index XXXXXXX..XXXXXXX 100644
49
--- a/configs/devices/arm-softmmu/default.mak
50
+++ b/configs/devices/arm-softmmu/default.mak
51
@@ -XXX,XX +XXX,XX @@ CONFIG_ARM_VIRT=y
52
# CONFIG_INTEGRATOR=n
53
# CONFIG_FSL_IMX31=n
54
# CONFIG_MUSICPAL=n
55
+# CONFIG_MPS3R=n
56
# CONFIG_MUSCA=n
57
# CONFIG_CHEETAH=n
58
# CONFIG_SX1=n
59
diff --git a/hw/arm/mps3r.c b/hw/arm/mps3r.c
60
new file mode 100644
61
index XXXXXXX..XXXXXXX
62
--- /dev/null
63
+++ b/hw/arm/mps3r.c
26
@@ -XXX,XX +XXX,XX @@
64
@@ -XXX,XX +XXX,XX @@
27
65
+/*
28
#define BCM283X_NCPUS 4
66
+ * Arm MPS3 board emulation for Cortex-R-based FPGA images.
29
67
+ * (For M-profile images see mps2.c and mps2tz.c.)
30
+/* These type names are for specific SoCs; other than instantiating
68
+ *
31
+ * them, code using these devices should always handle them via the
69
+ * Copyright (c) 2017 Linaro Limited
32
+ * BCM283x base class, so they have no BCM2836(obj) etc macros.
70
+ * Written by Peter Maydell
71
+ *
72
+ * This program is free software; you can redistribute it and/or modify
73
+ * it under the terms of the GNU General Public License version 2 or
74
+ * (at your option) any later version.
33
+ */
75
+ */
34
+#define TYPE_BCM2836 "bcm2836"
76
+
35
+#define TYPE_BCM2837 "bcm2837"
77
+/*
36
+
78
+ * The MPS3 is an FPGA based dev board. This file handles FPGA images
37
typedef struct BCM283XState {
79
+ * which use the Cortex-R CPUs. We model these separately from the
38
/*< private >*/
80
+ * M-profile images, because on M-profile the FPGA image is based on
39
DeviceState parent_obj;
81
+ * a "Subsystem for Embedded" which is similar to an SoC, whereas
40
@@ -XXX,XX +XXX,XX @@ typedef struct BCM283XState {
82
+ * the R-profile FPGA images don't have that abstraction layer.
41
BCM2835PeripheralState peripherals;
83
+ *
42
} BCM283XState;
84
+ * We model the following FPGA images here:
43
85
+ * "mps3-an536" -- dual Cortex-R52 as documented in Arm Application Note AN536
44
+typedef struct BCM283XInfo BCM283XInfo;
86
+ *
45
+
87
+ * Application Note AN536:
46
+typedef struct BCM283XClass {
88
+ * https://developer.arm.com/documentation/dai0536/latest/
47
+ DeviceClass parent_class;
89
+ */
48
+ const BCM283XInfo *info;
90
+
49
+} BCM283XClass;
91
+#include "qemu/osdep.h"
50
+
92
+#include "qemu/units.h"
51
+#define BCM283X_CLASS(klass) \
93
+#include "qapi/error.h"
52
+ OBJECT_CLASS_CHECK(BCM283XClass, (klass), TYPE_BCM283X)
94
+#include "exec/address-spaces.h"
53
+#define BCM283X_GET_CLASS(obj) \
95
+#include "cpu.h"
54
+ OBJECT_GET_CLASS(BCM283XClass, (obj), TYPE_BCM283X)
96
+#include "hw/boards.h"
55
+
97
+#include "hw/arm/boot.h"
56
#endif /* BCM2836_H */
98
+
57
diff --git a/hw/arm/bcm2836.c b/hw/arm/bcm2836.c
99
+/* Define the layout of RAM and ROM in a board */
58
index XXXXXXX..XXXXXXX 100644
100
+typedef struct RAMInfo {
59
--- a/hw/arm/bcm2836.c
60
+++ b/hw/arm/bcm2836.c
61
@@ -XXX,XX +XXX,XX @@
62
/* "QA7" (Pi2) interrupt controller and mailboxes etc. */
63
#define BCM2836_CONTROL_BASE 0x40000000
64
65
+struct BCM283XInfo {
66
+ const char *name;
101
+ const char *name;
102
+ hwaddr base;
103
+ hwaddr size;
104
+ int mrindex; /* index into rams[]; -1 for the system RAM block */
105
+ int flags;
106
+} RAMInfo;
107
+
108
+/*
109
+ * The MPS3 DDR is 3GiB, but on a 32-bit host QEMU doesn't permit
110
+ * emulation of that much guest RAM, so artificially make it smaller.
111
+ */
112
+#if HOST_LONG_BITS == 32
113
+#define MPS3_DDR_SIZE (1 * GiB)
114
+#else
115
+#define MPS3_DDR_SIZE (3 * GiB)
116
+#endif
117
+
118
+/*
119
+ * Flag values:
120
+ * IS_MAIN: this is the main machine RAM
121
+ * IS_ROM: this area is read-only
122
+ */
123
+#define IS_MAIN 1
124
+#define IS_ROM 2
125
+
126
+#define MPS3R_RAM_MAX 9
127
+
128
+typedef enum MPS3RFPGAType {
129
+ FPGA_AN536,
130
+} MPS3RFPGAType;
131
+
132
+struct MPS3RMachineClass {
133
+ MachineClass parent;
134
+ MPS3RFPGAType fpga_type;
135
+ const RAMInfo *raminfo;
67
+};
136
+};
68
+
137
+
69
+static const BCM283XInfo bcm283x_socs[] = {
138
+struct MPS3RMachineState {
139
+ MachineState parent;
140
+ MemoryRegion ram[MPS3R_RAM_MAX];
141
+};
142
+
143
+#define TYPE_MPS3R_MACHINE "mps3r"
144
+#define TYPE_MPS3R_AN536_MACHINE MACHINE_TYPE_NAME("mps3-an536")
145
+
146
+OBJECT_DECLARE_TYPE(MPS3RMachineState, MPS3RMachineClass, MPS3R_MACHINE)
147
+
148
+static const RAMInfo an536_raminfo[] = {
70
+ {
149
+ {
71
+ .name = TYPE_BCM2836,
150
+ .name = "ATCM",
72
+ },
151
+ .base = 0x00000000,
152
+ .size = 0x00008000,
153
+ .mrindex = 0,
154
+ }, {
155
+ /* We model the QSPI flash as simple ROM for now */
156
+ .name = "QSPI",
157
+ .base = 0x08000000,
158
+ .size = 0x00800000,
159
+ .flags = IS_ROM,
160
+ .mrindex = 1,
161
+ }, {
162
+ .name = "BRAM",
163
+ .base = 0x10000000,
164
+ .size = 0x00080000,
165
+ .mrindex = 2,
166
+ }, {
167
+ .name = "DDR",
168
+ .base = 0x20000000,
169
+ .size = MPS3_DDR_SIZE,
170
+ .mrindex = -1,
171
+ }, {
172
+ .name = "ATCM0",
173
+ .base = 0xee000000,
174
+ .size = 0x00008000,
175
+ .mrindex = 3,
176
+ }, {
177
+ .name = "BTCM0",
178
+ .base = 0xee100000,
179
+ .size = 0x00008000,
180
+ .mrindex = 4,
181
+ }, {
182
+ .name = "CTCM0",
183
+ .base = 0xee200000,
184
+ .size = 0x00008000,
185
+ .mrindex = 5,
186
+ }, {
187
+ .name = "ATCM1",
188
+ .base = 0xee400000,
189
+ .size = 0x00008000,
190
+ .mrindex = 6,
191
+ }, {
192
+ .name = "BTCM1",
193
+ .base = 0xee500000,
194
+ .size = 0x00008000,
195
+ .mrindex = 7,
196
+ }, {
197
+ .name = "CTCM1",
198
+ .base = 0xee600000,
199
+ .size = 0x00008000,
200
+ .mrindex = 8,
201
+ }, {
202
+ .name = NULL,
203
+ }
204
+};
205
+
206
+static MemoryRegion *mr_for_raminfo(MPS3RMachineState *mms,
207
+ const RAMInfo *raminfo)
208
+{
209
+ /* Return an initialized MemoryRegion for the RAMInfo. */
210
+ MemoryRegion *ram;
211
+
212
+ if (raminfo->mrindex < 0) {
213
+ /* Means this RAMInfo is for QEMU's "system memory" */
214
+ MachineState *machine = MACHINE(mms);
215
+ assert(!(raminfo->flags & IS_ROM));
216
+ return machine->ram;
217
+ }
218
+
219
+ assert(raminfo->mrindex < MPS3R_RAM_MAX);
220
+ ram = &mms->ram[raminfo->mrindex];
221
+
222
+ memory_region_init_ram(ram, NULL, raminfo->name,
223
+ raminfo->size, &error_fatal);
224
+ if (raminfo->flags & IS_ROM) {
225
+ memory_region_set_readonly(ram, true);
226
+ }
227
+ return ram;
228
+}
229
+
230
+static void mps3r_common_init(MachineState *machine)
231
+{
232
+ MPS3RMachineState *mms = MPS3R_MACHINE(machine);
233
+ MPS3RMachineClass *mmc = MPS3R_MACHINE_GET_CLASS(mms);
234
+ MemoryRegion *sysmem = get_system_memory();
235
+
236
+ for (const RAMInfo *ri = mmc->raminfo; ri->name; ri++) {
237
+ MemoryRegion *mr = mr_for_raminfo(mms, ri);
238
+ memory_region_add_subregion(sysmem, ri->base, mr);
239
+ }
240
+}
241
+
242
+static void mps3r_set_default_ram_info(MPS3RMachineClass *mmc)
243
+{
244
+ /*
245
+ * Set mc->default_ram_size and default_ram_id from the
246
+ * information in mmc->raminfo.
247
+ */
248
+ MachineClass *mc = MACHINE_CLASS(mmc);
249
+ const RAMInfo *p;
250
+
251
+ for (p = mmc->raminfo; p->name; p++) {
252
+ if (p->mrindex < 0) {
253
+ /* Found the entry for "system memory" */
254
+ mc->default_ram_size = p->size;
255
+ mc->default_ram_id = p->name;
256
+ return;
257
+ }
258
+ }
259
+ g_assert_not_reached();
260
+}
261
+
262
+static void mps3r_class_init(ObjectClass *oc, void *data)
263
+{
264
+ MachineClass *mc = MACHINE_CLASS(oc);
265
+
266
+ mc->init = mps3r_common_init;
267
+}
268
+
269
+static void mps3r_an536_class_init(ObjectClass *oc, void *data)
270
+{
271
+ MachineClass *mc = MACHINE_CLASS(oc);
272
+ MPS3RMachineClass *mmc = MPS3R_MACHINE_CLASS(oc);
273
+ static const char * const valid_cpu_types[] = {
274
+ ARM_CPU_TYPE_NAME("cortex-r52"),
275
+ NULL
276
+ };
277
+
278
+ mc->desc = "ARM MPS3 with AN536 FPGA image for Cortex-R52";
279
+ mc->default_cpus = 2;
280
+ mc->min_cpus = mc->default_cpus;
281
+ mc->max_cpus = mc->default_cpus;
282
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-r52");
283
+ mc->valid_cpu_types = valid_cpu_types;
284
+ mmc->raminfo = an536_raminfo;
285
+ mps3r_set_default_ram_info(mmc);
286
+}
287
+
288
+static const TypeInfo mps3r_machine_types[] = {
73
+ {
289
+ {
74
+ .name = TYPE_BCM2837,
290
+ .name = TYPE_MPS3R_MACHINE,
291
+ .parent = TYPE_MACHINE,
292
+ .abstract = true,
293
+ .instance_size = sizeof(MPS3RMachineState),
294
+ .class_size = sizeof(MPS3RMachineClass),
295
+ .class_init = mps3r_class_init,
296
+ }, {
297
+ .name = TYPE_MPS3R_AN536_MACHINE,
298
+ .parent = TYPE_MPS3R_MACHINE,
299
+ .class_init = mps3r_an536_class_init,
75
+ },
300
+ },
76
+};
301
+};
77
+
302
+
78
static void bcm2836_init(Object *obj)
303
+DEFINE_TYPES(mps3r_machine_types);
79
{
304
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
80
BCM283XState *s = BCM283X(obj);
81
@@ -XXX,XX +XXX,XX @@ static Property bcm2836_props[] = {
82
DEFINE_PROP_END_OF_LIST()
83
};
84
85
-static void bcm2836_class_init(ObjectClass *oc, void *data)
86
+static void bcm283x_class_init(ObjectClass *oc, void *data)
87
{
88
DeviceClass *dc = DEVICE_CLASS(oc);
89
+ BCM283XClass *bc = BCM283X_CLASS(oc);
90
91
- dc->props = bcm2836_props;
92
+ bc->info = data;
93
dc->realize = bcm2836_realize;
94
+ dc->props = bcm2836_props;
95
}
96
97
-static const TypeInfo bcm2836_type_info = {
98
+static const TypeInfo bcm283x_type_info = {
99
.name = TYPE_BCM283X,
100
.parent = TYPE_DEVICE,
101
.instance_size = sizeof(BCM283XState),
102
.instance_init = bcm2836_init,
103
- .class_init = bcm2836_class_init,
104
+ .class_size = sizeof(BCM283XClass),
105
+ .abstract = true,
106
};
107
108
static void bcm2836_register_types(void)
109
{
110
- type_register_static(&bcm2836_type_info);
111
+ int i;
112
+
113
+ type_register_static(&bcm283x_type_info);
114
+ for (i = 0; i < ARRAY_SIZE(bcm283x_socs); i++) {
115
+ TypeInfo ti = {
116
+ .name = bcm283x_socs[i].name,
117
+ .parent = TYPE_BCM283X,
118
+ .class_init = bcm283x_class_init,
119
+ .class_data = (void *) &bcm283x_socs[i],
120
+ };
121
+ type_register(&ti);
122
+ }
123
}
124
125
type_init(bcm2836_register_types)
126
diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
127
index XXXXXXX..XXXXXXX 100644
305
index XXXXXXX..XXXXXXX 100644
128
--- a/hw/arm/raspi.c
306
--- a/hw/arm/Kconfig
129
+++ b/hw/arm/raspi.c
307
+++ b/hw/arm/Kconfig
130
@@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, int version)
308
@@ -XXX,XX +XXX,XX @@ config MAINSTONE
131
BusState *bus;
309
select PFLASH_CFI01
132
DeviceState *carddev;
310
select SMC91C111
133
311
134
- object_initialize(&s->soc, sizeof(s->soc), TYPE_BCM283X);
312
+config MPS3R
135
+ object_initialize(&s->soc, sizeof(s->soc),
313
+ bool
136
+ version == 3 ? TYPE_BCM2837 : TYPE_BCM2836);
314
+ default y
137
object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
315
+ depends on TCG && ARM
138
&error_abort);
316
+
139
317
config MUSCA
318
bool
319
default y
320
diff --git a/hw/arm/meson.build b/hw/arm/meson.build
321
index XXXXXXX..XXXXXXX 100644
322
--- a/hw/arm/meson.build
323
+++ b/hw/arm/meson.build
324
@@ -XXX,XX +XXX,XX @@ arm_ss.add(when: 'CONFIG_HIGHBANK', if_true: files('highbank.c'))
325
arm_ss.add(when: 'CONFIG_INTEGRATOR', if_true: files('integratorcp.c'))
326
arm_ss.add(when: 'CONFIG_MAINSTONE', if_true: files('mainstone.c'))
327
arm_ss.add(when: 'CONFIG_MICROBIT', if_true: files('microbit.c'))
328
+arm_ss.add(when: 'CONFIG_MPS3R', if_true: files('mps3r.c'))
329
arm_ss.add(when: 'CONFIG_MUSICPAL', if_true: files('musicpal.c'))
330
arm_ss.add(when: 'CONFIG_NETDUINOPLUS2', if_true: files('netduinoplus2.c'))
331
arm_ss.add(when: 'CONFIG_OLIMEX_STM32_H405', if_true: files('olimex-stm32-h405.c'))
140
--
332
--
141
2.16.2
333
2.34.1
142
334
143
335
diff view generated by jsdifflib
1
Now we have separate types for BCM2386 and BCM2387, we might as well
1
Create the CPUs, the GIC, and the per-CPU RAM block for
2
just hard-code the CPU type they use rather than having it passed
2
the mps3-an536 board.
3
through as an object property. This then lets us put the initialization
4
of the CPU object in init rather than realize.
5
6
Note that this change means that it's no longer possible on
7
the command line to use -cpu to ask for a different kind of
8
CPU than the SoC supports. This was never a supported thing to
9
do anyway; we were just not sanity-checking the command line.
10
11
This does require us to only build the bcm2837 object on
12
TARGET_AARCH64 configs, since otherwise it won't instantiate
13
due to the missing cortex-a53 device and "make check" will fail.
14
3
15
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
4
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
16
Reviewed-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
5
Message-id: 20240206132931.38376-10-peter.maydell@linaro.org
17
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
18
Message-id: 20180313153458.26822-9-peter.maydell@linaro.org
19
---
6
---
20
hw/arm/bcm2836.c | 24 +++++++++++++++---------
7
hw/arm/mps3r.c | 180 ++++++++++++++++++++++++++++++++++++++++++++++++-
21
hw/arm/raspi.c | 2 --
8
1 file changed, 177 insertions(+), 3 deletions(-)
22
2 files changed, 15 insertions(+), 11 deletions(-)
23
9
24
diff --git a/hw/arm/bcm2836.c b/hw/arm/bcm2836.c
10
diff --git a/hw/arm/mps3r.c b/hw/arm/mps3r.c
25
index XXXXXXX..XXXXXXX 100644
11
index XXXXXXX..XXXXXXX 100644
26
--- a/hw/arm/bcm2836.c
12
--- a/hw/arm/mps3r.c
27
+++ b/hw/arm/bcm2836.c
13
+++ b/hw/arm/mps3r.c
28
@@ -XXX,XX +XXX,XX @@
14
@@ -XXX,XX +XXX,XX @@
29
15
#include "qemu/osdep.h"
30
struct BCM283XInfo {
16
#include "qemu/units.h"
31
const char *name;
17
#include "qapi/error.h"
32
+ const char *cpu_type;
18
+#include "qapi/qmp/qlist.h"
33
int clusterid;
19
#include "exec/address-spaces.h"
20
#include "cpu.h"
21
#include "hw/boards.h"
22
+#include "hw/qdev-properties.h"
23
#include "hw/arm/boot.h"
24
+#include "hw/arm/bsa.h"
25
+#include "hw/intc/arm_gicv3.h"
26
27
/* Define the layout of RAM and ROM in a board */
28
typedef struct RAMInfo {
29
@@ -XXX,XX +XXX,XX @@ typedef struct RAMInfo {
30
#define IS_ROM 2
31
32
#define MPS3R_RAM_MAX 9
33
+#define MPS3R_CPU_MAX 2
34
+
35
+#define PERIPHBASE 0xf0000000
36
+#define NUM_SPIS 96
37
38
typedef enum MPS3RFPGAType {
39
FPGA_AN536,
40
@@ -XXX,XX +XXX,XX @@ struct MPS3RMachineClass {
41
MachineClass parent;
42
MPS3RFPGAType fpga_type;
43
const RAMInfo *raminfo;
44
+ hwaddr loader_start;
34
};
45
};
35
46
36
static const BCM283XInfo bcm283x_socs[] = {
47
struct MPS3RMachineState {
37
{
48
MachineState parent;
38
.name = TYPE_BCM2836,
49
+ struct arm_boot_info bootinfo;
39
+ .cpu_type = ARM_CPU_TYPE_NAME("cortex-a15"),
50
MemoryRegion ram[MPS3R_RAM_MAX];
40
.clusterid = 0xf,
51
+ Object *cpu[MPS3R_CPU_MAX];
41
},
52
+ MemoryRegion cpu_sysmem[MPS3R_CPU_MAX];
42
+#ifdef TARGET_AARCH64
53
+ MemoryRegion sysmem_alias[MPS3R_CPU_MAX];
43
{
54
+ MemoryRegion cpu_ram[MPS3R_CPU_MAX];
44
.name = TYPE_BCM2837,
55
+ GICv3State gic;
45
+ .cpu_type = ARM_CPU_TYPE_NAME("cortex-a53"),
46
.clusterid = 0x0,
47
},
48
+#endif
49
};
56
};
50
57
51
static void bcm2836_init(Object *obj)
58
#define TYPE_MPS3R_MACHINE "mps3r"
59
@@ -XXX,XX +XXX,XX @@ static MemoryRegion *mr_for_raminfo(MPS3RMachineState *mms,
60
return ram;
61
}
62
63
+/*
64
+ * There is no defined secondary boot protocol for Linux for the AN536,
65
+ * because real hardware has a restriction that atomic operations between
66
+ * the two CPUs do not function correctly, and so true SMP is not
67
+ * possible. Therefore for cases where the user is directly booting
68
+ * a kernel, we treat the system as essentially uniprocessor, and
69
+ * put the secondary CPU into power-off state (as if the user on the
70
+ * real hardware had configured the secondary to be halted via the
71
+ * SCC config registers).
72
+ *
73
+ * Note that the default secondary boot code would not work here anyway
74
+ * as it assumes a GICv2, and we have a GICv3.
75
+ */
76
+static void mps3r_write_secondary_boot(ARMCPU *cpu,
77
+ const struct arm_boot_info *info)
78
+{
79
+ /*
80
+ * Power the secondary CPU off. This means we don't need to write any
81
+ * boot code into guest memory. Note that the 'cpu' argument to this
82
+ * function is the primary CPU we passed to arm_load_kernel(), not
83
+ * the secondary. Loop around all the other CPUs, as the boot.c
84
+ * code does for the "disable secondaries if PSCI is enabled" case.
85
+ */
86
+ for (CPUState *cs = first_cpu; cs; cs = CPU_NEXT(cs)) {
87
+ if (cs != first_cpu) {
88
+ object_property_set_bool(OBJECT(cs), "start-powered-off", true,
89
+ &error_abort);
90
+ }
91
+ }
92
+}
93
+
94
+static void mps3r_secondary_cpu_reset(ARMCPU *cpu,
95
+ const struct arm_boot_info *info)
96
+{
97
+ /* We don't need to do anything here because the CPU will be off */
98
+}
99
+
100
+static void create_gic(MPS3RMachineState *mms, MemoryRegion *sysmem)
101
+{
102
+ MachineState *machine = MACHINE(mms);
103
+ DeviceState *gicdev;
104
+ QList *redist_region_count;
105
+
106
+ object_initialize_child(OBJECT(mms), "gic", &mms->gic, TYPE_ARM_GICV3);
107
+ gicdev = DEVICE(&mms->gic);
108
+ qdev_prop_set_uint32(gicdev, "num-cpu", machine->smp.cpus);
109
+ qdev_prop_set_uint32(gicdev, "num-irq", NUM_SPIS + GIC_INTERNAL);
110
+ redist_region_count = qlist_new();
111
+ qlist_append_int(redist_region_count, machine->smp.cpus);
112
+ qdev_prop_set_array(gicdev, "redist-region-count", redist_region_count);
113
+ object_property_set_link(OBJECT(&mms->gic), "sysmem",
114
+ OBJECT(sysmem), &error_fatal);
115
+ sysbus_realize(SYS_BUS_DEVICE(&mms->gic), &error_fatal);
116
+ sysbus_mmio_map(SYS_BUS_DEVICE(&mms->gic), 0, PERIPHBASE);
117
+ sysbus_mmio_map(SYS_BUS_DEVICE(&mms->gic), 1, PERIPHBASE + 0x100000);
118
+ /*
119
+ * Wire the outputs from each CPU's generic timer and the GICv3
120
+ * maintenance interrupt signal to the appropriate GIC PPI inputs,
121
+ * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs.
122
+ */
123
+ for (int i = 0; i < machine->smp.cpus; i++) {
124
+ DeviceState *cpudev = DEVICE(mms->cpu[i]);
125
+ SysBusDevice *gicsbd = SYS_BUS_DEVICE(&mms->gic);
126
+ int intidbase = NUM_SPIS + i * GIC_INTERNAL;
127
+ int irq;
128
+ /*
129
+ * Mapping from the output timer irq lines from the CPU to the
130
+ * GIC PPI inputs used for this board. This isn't a BSA board,
131
+ * but it uses the standard convention for the PPI numbers.
132
+ */
133
+ const int timer_irq[] = {
134
+ [GTIMER_PHYS] = ARCH_TIMER_NS_EL1_IRQ,
135
+ [GTIMER_VIRT] = ARCH_TIMER_VIRT_IRQ,
136
+ [GTIMER_HYP] = ARCH_TIMER_NS_EL2_IRQ,
137
+ };
138
+
139
+ for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) {
140
+ qdev_connect_gpio_out(cpudev, irq,
141
+ qdev_get_gpio_in(gicdev,
142
+ intidbase + timer_irq[irq]));
143
+ }
144
+
145
+ qdev_connect_gpio_out_named(cpudev, "gicv3-maintenance-interrupt", 0,
146
+ qdev_get_gpio_in(gicdev,
147
+ intidbase + ARCH_GIC_MAINT_IRQ));
148
+
149
+ qdev_connect_gpio_out_named(cpudev, "pmu-interrupt", 0,
150
+ qdev_get_gpio_in(gicdev,
151
+ intidbase + VIRTUAL_PMU_IRQ));
152
+
153
+ sysbus_connect_irq(gicsbd, i,
154
+ qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
155
+ sysbus_connect_irq(gicsbd, i + machine->smp.cpus,
156
+ qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
157
+ sysbus_connect_irq(gicsbd, i + 2 * machine->smp.cpus,
158
+ qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
159
+ sysbus_connect_irq(gicsbd, i + 3 * machine->smp.cpus,
160
+ qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
161
+ }
162
+}
163
+
164
static void mps3r_common_init(MachineState *machine)
52
{
165
{
53
BCM283XState *s = BCM283X(obj);
166
MPS3RMachineState *mms = MPS3R_MACHINE(machine);
54
+ BCM283XClass *bc = BCM283X_GET_CLASS(obj);
167
@@ -XXX,XX +XXX,XX @@ static void mps3r_common_init(MachineState *machine)
55
+ const BCM283XInfo *info = bc->info;
168
MemoryRegion *mr = mr_for_raminfo(mms, ri);
56
+ int n;
169
memory_region_add_subregion(sysmem, ri->base, mr);
57
+
170
}
58
+ for (n = 0; n < BCM283X_NCPUS; n++) {
171
+
59
+ object_initialize(&s->cpus[n], sizeof(s->cpus[n]),
172
+ assert(machine->smp.cpus <= MPS3R_CPU_MAX);
60
+ info->cpu_type);
173
+ for (int i = 0; i < machine->smp.cpus; i++) {
61
+ object_property_add_child(obj, "cpu[*]", OBJECT(&s->cpus[n]),
174
+ g_autofree char *sysmem_name = g_strdup_printf("cpu-%d-memory", i);
62
+ &error_abort);
175
+ g_autofree char *ramname = g_strdup_printf("cpu-%d-memory", i);
176
+ g_autofree char *alias_name = g_strdup_printf("sysmem-alias-%d", i);
177
+
178
+ /*
179
+ * Each CPU has some private RAM/peripherals, so create the container
180
+ * which will house those, with the whole-machine system memory being
181
+ * used where there's no CPU-specific device. Note that we need the
182
+ * sysmem_alias aliases because we can't put one MR (the original
183
+ * 'sysmem') into more than one other MR.
184
+ */
185
+ memory_region_init(&mms->cpu_sysmem[i], OBJECT(machine),
186
+ sysmem_name, UINT64_MAX);
187
+ memory_region_init_alias(&mms->sysmem_alias[i], OBJECT(machine),
188
+ alias_name, sysmem, 0, UINT64_MAX);
189
+ memory_region_add_subregion_overlap(&mms->cpu_sysmem[i], 0,
190
+ &mms->sysmem_alias[i], -1);
191
+
192
+ mms->cpu[i] = object_new(machine->cpu_type);
193
+ object_property_set_link(mms->cpu[i], "memory",
194
+ OBJECT(&mms->cpu_sysmem[i]), &error_abort);
195
+ object_property_set_int(mms->cpu[i], "reset-cbar",
196
+ PERIPHBASE, &error_abort);
197
+ qdev_realize(DEVICE(mms->cpu[i]), NULL, &error_fatal);
198
+ object_unref(mms->cpu[i]);
199
+
200
+ /* Per-CPU RAM */
201
+ memory_region_init_ram(&mms->cpu_ram[i], NULL, ramname,
202
+ 0x1000, &error_fatal);
203
+ memory_region_add_subregion(&mms->cpu_sysmem[i], 0xe7c01000,
204
+ &mms->cpu_ram[i]);
63
+ }
205
+ }
64
206
+
65
object_initialize(&s->control, sizeof(s->control), TYPE_BCM2836_CONTROL);
207
+ create_gic(mms, sysmem);
66
object_property_add_child(obj, "control", OBJECT(&s->control), NULL);
208
+
67
@@ -XXX,XX +XXX,XX @@ static void bcm2836_realize(DeviceState *dev, Error **errp)
209
+ mms->bootinfo.ram_size = machine->ram_size;
68
210
+ mms->bootinfo.board_id = -1;
69
/* common peripherals from bcm2835 */
211
+ mms->bootinfo.loader_start = mmc->loader_start;
70
212
+ mms->bootinfo.write_secondary_boot = mps3r_write_secondary_boot;
71
- obj = OBJECT(dev);
213
+ mms->bootinfo.secondary_cpu_reset_hook = mps3r_secondary_cpu_reset;
72
- for (n = 0; n < BCM283X_NCPUS; n++) {
214
+ arm_load_kernel(ARM_CPU(mms->cpu[0]), machine, &mms->bootinfo);
73
- object_initialize(&s->cpus[n], sizeof(s->cpus[n]),
74
- s->cpu_type);
75
- object_property_add_child(obj, "cpu[*]", OBJECT(&s->cpus[n]),
76
- &error_abort);
77
- }
78
-
79
obj = object_property_get_link(OBJECT(dev), "ram", &err);
80
if (obj == NULL) {
81
error_setg(errp, "%s: required ram link not found: %s",
82
@@ -XXX,XX +XXX,XX @@ static void bcm2836_realize(DeviceState *dev, Error **errp)
83
}
215
}
84
216
85
static Property bcm2836_props[] = {
217
static void mps3r_set_default_ram_info(MPS3RMachineClass *mmc)
86
- DEFINE_PROP_STRING("cpu-type", BCM283XState, cpu_type),
218
@@ -XXX,XX +XXX,XX @@ static void mps3r_set_default_ram_info(MPS3RMachineClass *mmc)
87
DEFINE_PROP_UINT32("enabled-cpus", BCM283XState, enabled_cpus,
219
/* Found the entry for "system memory" */
88
BCM283X_NCPUS),
220
mc->default_ram_size = p->size;
89
DEFINE_PROP_END_OF_LIST()
221
mc->default_ram_id = p->name;
90
diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
222
+ mmc->loader_start = p->base;
91
index XXXXXXX..XXXXXXX 100644
223
return;
92
--- a/hw/arm/raspi.c
224
}
93
+++ b/hw/arm/raspi.c
225
}
94
@@ -XXX,XX +XXX,XX @@ static void raspi_init(MachineState *machine, int version)
226
@@ -XXX,XX +XXX,XX @@ static void mps3r_an536_class_init(ObjectClass *oc, void *data)
95
/* Setup the SOC */
227
};
96
object_property_add_const_link(OBJECT(&s->soc), "ram", OBJECT(&s->ram),
228
97
&error_abort);
229
mc->desc = "ARM MPS3 with AN536 FPGA image for Cortex-R52";
98
- object_property_set_str(OBJECT(&s->soc), machine->cpu_type, "cpu-type",
230
- mc->default_cpus = 2;
99
- &error_abort);
231
- mc->min_cpus = mc->default_cpus;
100
object_property_set_int(OBJECT(&s->soc), smp_cpus, "enabled-cpus",
232
- mc->max_cpus = mc->default_cpus;
101
&error_abort);
233
+ /*
102
int board_rev = version == 3 ? 0xa02082 : 0xa21041;
234
+ * In the real FPGA image there are always two cores, but the standard
235
+ * initial setting for the SCC SYSCON 0x000 register is 0x21, meaning
236
+ * that the second core is held in reset and halted. Many images built for
237
+ * the board do not expect the second core to run at startup (especially
238
+ * since on the real FPGA image it is not possible to use LDREX/STREX
239
+ * in RAM between the two cores, so a true SMP setup isn't supported).
240
+ *
241
+ * As QEMU's equivalent of this, we support both -smp 1 and -smp 2,
242
+ * with the default being -smp 1. This seems a more intuitive UI for
243
+ * QEMU users than, for instance, having a machine property to allow
244
+ * the user to set the initial value of the SYSCON 0x000 register.
245
+ */
246
+ mc->default_cpus = 1;
247
+ mc->min_cpus = 1;
248
+ mc->max_cpus = 2;
249
mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-r52");
250
mc->valid_cpu_types = valid_cpu_types;
251
mmc->raminfo = an536_raminfo;
103
--
252
--
104
2.16.2
253
2.34.1
105
106
diff view generated by jsdifflib
1
The raspi3 has AArch64 CPUs, which means that our smpboot
1
This board has a lot of UARTs: there is one UART per CPU in the
2
code for keeping the secondary CPUs in a pen needs to have
2
per-CPU peripheral part of the address map, whose interrupts are
3
a version for A64 as well as A32. Without this, the
3
connected as per-CPU interrupt lines. Then there are 4 UARTs in the
4
secondary CPUs go into an infinite loop of taking undefined
4
normal part of the peripheral space, whose interrupts are shared
5
instruction exceptions.
5
peripheral interrupts.
6
7
Connect and wire them all up; this involves some OR gates where
8
multiple overflow interrupts are wired into one GIC input.
6
9
7
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
10
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
8
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
11
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
9
Message-id: 20180313153458.26822-10-peter.maydell@linaro.org
12
Message-id: 20240206132931.38376-11-peter.maydell@linaro.org
10
---
13
---
11
hw/arm/raspi.c | 41 ++++++++++++++++++++++++++++++++++++++++-
14
hw/arm/mps3r.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++
12
1 file changed, 40 insertions(+), 1 deletion(-)
15
1 file changed, 94 insertions(+)
13
16
14
diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
17
diff --git a/hw/arm/mps3r.c b/hw/arm/mps3r.c
15
index XXXXXXX..XXXXXXX 100644
18
index XXXXXXX..XXXXXXX 100644
16
--- a/hw/arm/raspi.c
19
--- a/hw/arm/mps3r.c
17
+++ b/hw/arm/raspi.c
20
+++ b/hw/arm/mps3r.c
18
@@ -XXX,XX +XXX,XX @@
21
@@ -XXX,XX +XXX,XX @@
19
#define BOARDSETUP_ADDR (MVBAR_ADDR + 0x20) /* board setup code */
22
#include "qapi/qmp/qlist.h"
20
#define FIRMWARE_ADDR_2 0x8000 /* Pi 2 loads kernel.img here by default */
23
#include "exec/address-spaces.h"
21
#define FIRMWARE_ADDR_3 0x80000 /* Pi 3 loads kernel.img here by default */
24
#include "cpu.h"
22
+#define SPINTABLE_ADDR 0xd8 /* Pi 3 bootloader spintable */
25
+#include "sysemu/sysemu.h"
23
26
#include "hw/boards.h"
24
/* Table of Linux board IDs for different Pi versions */
27
+#include "hw/or-irq.h"
25
static const int raspi_boardid[] = {[1] = 0xc42, [2] = 0xc43, [3] = 0xc44};
28
#include "hw/qdev-properties.h"
26
@@ -XXX,XX +XXX,XX @@ static void write_smpboot(ARMCPU *cpu, const struct arm_boot_info *info)
29
#include "hw/arm/boot.h"
27
info->smp_loader_start);
30
#include "hw/arm/bsa.h"
31
+#include "hw/char/cmsdk-apb-uart.h"
32
#include "hw/intc/arm_gicv3.h"
33
34
/* Define the layout of RAM and ROM in a board */
35
@@ -XXX,XX +XXX,XX @@ typedef struct RAMInfo {
36
37
#define MPS3R_RAM_MAX 9
38
#define MPS3R_CPU_MAX 2
39
+#define MPS3R_UART_MAX 4 /* shared UART count */
40
41
#define PERIPHBASE 0xf0000000
42
#define NUM_SPIS 96
43
@@ -XXX,XX +XXX,XX @@ struct MPS3RMachineState {
44
MemoryRegion sysmem_alias[MPS3R_CPU_MAX];
45
MemoryRegion cpu_ram[MPS3R_CPU_MAX];
46
GICv3State gic;
47
+ /* per-CPU UARTs followed by the shared UARTs */
48
+ CMSDKAPBUART uart[MPS3R_CPU_MAX + MPS3R_UART_MAX];
49
+ OrIRQState cpu_uart_oflow[MPS3R_CPU_MAX];
50
+ OrIRQState uart_oflow;
51
};
52
53
#define TYPE_MPS3R_MACHINE "mps3r"
54
@@ -XXX,XX +XXX,XX @@ struct MPS3RMachineState {
55
56
OBJECT_DECLARE_TYPE(MPS3RMachineState, MPS3RMachineClass, MPS3R_MACHINE)
57
58
+/*
59
+ * Main clock frequency CLK in Hz (50MHz). In the image there are also
60
+ * ACLK, MCLK, GPUCLK and PERIPHCLK at the same frequency; for our
61
+ * model we just roll them all into one.
62
+ */
63
+#define CLK_FRQ 50000000
64
+
65
static const RAMInfo an536_raminfo[] = {
66
{
67
.name = "ATCM",
68
@@ -XXX,XX +XXX,XX @@ static void create_gic(MPS3RMachineState *mms, MemoryRegion *sysmem)
69
}
28
}
70
}
29
71
30
+static void write_smpboot64(ARMCPU *cpu, const struct arm_boot_info *info)
72
+/*
73
+ * Create UART uartno, and map it into the MemoryRegion mem at address baseaddr.
74
+ * The qemu_irq arguments are where we connect the various IRQs from the UART.
75
+ */
76
+static void create_uart(MPS3RMachineState *mms, int uartno, MemoryRegion *mem,
77
+ hwaddr baseaddr, qemu_irq txirq, qemu_irq rxirq,
78
+ qemu_irq txoverirq, qemu_irq rxoverirq,
79
+ qemu_irq combirq)
31
+{
80
+{
32
+ /* Unlike the AArch32 version we don't need to call the board setup hook.
81
+ g_autofree char *s = g_strdup_printf("uart%d", uartno);
33
+ * The mechanism for doing the spin-table is also entirely different.
82
+ SysBusDevice *sbd;
34
+ * We must have four 64-bit fields at absolute addresses
35
+ * 0xd8, 0xe0, 0xe8, 0xf0 in RAM, which are the flag variables for
36
+ * our CPUs, and which we must ensure are zero initialized before
37
+ * the primary CPU goes into the kernel. We put these variables inside
38
+ * a rom blob, so that the reset for ROM contents zeroes them for us.
39
+ */
40
+ static const uint32_t smpboot[] = {
41
+ 0xd2801b05, /* mov x5, 0xd8 */
42
+ 0xd53800a6, /* mrs x6, mpidr_el1 */
43
+ 0x924004c6, /* and x6, x6, #0x3 */
44
+ 0xd503205f, /* spin: wfe */
45
+ 0xf86678a4, /* ldr x4, [x5,x6,lsl #3] */
46
+ 0xb4ffffc4, /* cbz x4, spin */
47
+ 0xd2800000, /* mov x0, #0x0 */
48
+ 0xd2800001, /* mov x1, #0x0 */
49
+ 0xd2800002, /* mov x2, #0x0 */
50
+ 0xd2800003, /* mov x3, #0x0 */
51
+ 0xd61f0080, /* br x4 */
52
+ };
53
+
83
+
54
+ static const uint64_t spintables[] = {
84
+ assert(uartno < ARRAY_SIZE(mms->uart));
55
+ 0, 0, 0, 0
85
+ object_initialize_child(OBJECT(mms), s, &mms->uart[uartno],
56
+ };
86
+ TYPE_CMSDK_APB_UART);
57
+
87
+ qdev_prop_set_uint32(DEVICE(&mms->uart[uartno]), "pclk-frq", CLK_FRQ);
58
+ rom_add_blob_fixed("raspi_smpboot", smpboot, sizeof(smpboot),
88
+ qdev_prop_set_chr(DEVICE(&mms->uart[uartno]), "chardev", serial_hd(uartno));
59
+ info->smp_loader_start);
89
+ sbd = SYS_BUS_DEVICE(&mms->uart[uartno]);
60
+ rom_add_blob_fixed("raspi_spintables", spintables, sizeof(spintables),
90
+ sysbus_realize(sbd, &error_fatal);
61
+ SPINTABLE_ADDR);
91
+ memory_region_add_subregion(mem, baseaddr,
92
+ sysbus_mmio_get_region(sbd, 0));
93
+ sysbus_connect_irq(sbd, 0, txirq);
94
+ sysbus_connect_irq(sbd, 1, rxirq);
95
+ sysbus_connect_irq(sbd, 2, txoverirq);
96
+ sysbus_connect_irq(sbd, 3, rxoverirq);
97
+ sysbus_connect_irq(sbd, 4, combirq);
62
+}
98
+}
63
+
99
+
64
static void write_board_setup(ARMCPU *cpu, const struct arm_boot_info *info)
100
static void mps3r_common_init(MachineState *machine)
65
{
101
{
66
arm_write_secure_board_setup_dummy_smc(cpu, info, MVBAR_ADDR);
102
MPS3RMachineState *mms = MPS3R_MACHINE(machine);
67
@@ -XXX,XX +XXX,XX @@ static void setup_boot(MachineState *machine, int version, size_t ram_size)
103
MPS3RMachineClass *mmc = MPS3R_MACHINE_GET_CLASS(mms);
68
/* Pi2 and Pi3 requires SMP setup */
104
MemoryRegion *sysmem = get_system_memory();
69
if (version >= 2) {
105
+ DeviceState *gicdev;
70
binfo.smp_loader_start = SMPBOOT_ADDR;
106
71
- binfo.write_secondary_boot = write_smpboot;
107
for (const RAMInfo *ri = mmc->raminfo; ri->name; ri++) {
72
+ if (version == 2) {
108
MemoryRegion *mr = mr_for_raminfo(mms, ri);
73
+ binfo.write_secondary_boot = write_smpboot;
109
@@ -XXX,XX +XXX,XX @@ static void mps3r_common_init(MachineState *machine)
74
+ } else {
75
+ binfo.write_secondary_boot = write_smpboot64;
76
+ }
77
binfo.secondary_cpu_reset_hook = reset_secondary;
78
}
110
}
79
111
112
create_gic(mms, sysmem);
113
+ gicdev = DEVICE(&mms->gic);
114
+
115
+ /*
116
+ * UARTs 0 and 1 are per-CPU; their interrupts are wired to
117
+ * the relevant CPU's PPI 0..3, aka INTID 16..19
118
+ */
119
+ for (int i = 0; i < machine->smp.cpus; i++) {
120
+ int intidbase = NUM_SPIS + i * GIC_INTERNAL;
121
+ g_autofree char *s = g_strdup_printf("cpu-uart-oflow-orgate%d", i);
122
+ DeviceState *orgate;
123
+
124
+ /* The two overflow IRQs from the UART are ORed together into PPI 3 */
125
+ object_initialize_child(OBJECT(mms), s, &mms->cpu_uart_oflow[i],
126
+ TYPE_OR_IRQ);
127
+ orgate = DEVICE(&mms->cpu_uart_oflow[i]);
128
+ qdev_prop_set_uint32(orgate, "num-lines", 2);
129
+ qdev_realize(orgate, NULL, &error_fatal);
130
+ qdev_connect_gpio_out(orgate, 0,
131
+ qdev_get_gpio_in(gicdev, intidbase + 19));
132
+
133
+ create_uart(mms, i, &mms->cpu_sysmem[i], 0xe7c00000,
134
+ qdev_get_gpio_in(gicdev, intidbase + 17), /* tx */
135
+ qdev_get_gpio_in(gicdev, intidbase + 16), /* rx */
136
+ qdev_get_gpio_in(orgate, 0), /* txover */
137
+ qdev_get_gpio_in(orgate, 1), /* rxover */
138
+ qdev_get_gpio_in(gicdev, intidbase + 18) /* combined */);
139
+ }
140
+ /*
141
+ * UARTs 2 to 5 are whole-system; all overflow IRQs are ORed
142
+ * together into IRQ 17
143
+ */
144
+ object_initialize_child(OBJECT(mms), "uart-oflow-orgate",
145
+ &mms->uart_oflow, TYPE_OR_IRQ);
146
+ qdev_prop_set_uint32(DEVICE(&mms->uart_oflow), "num-lines",
147
+ MPS3R_UART_MAX * 2);
148
+ qdev_realize(DEVICE(&mms->uart_oflow), NULL, &error_fatal);
149
+ qdev_connect_gpio_out(DEVICE(&mms->uart_oflow), 0,
150
+ qdev_get_gpio_in(gicdev, 17));
151
+
152
+ for (int i = 0; i < MPS3R_UART_MAX; i++) {
153
+ hwaddr baseaddr = 0xe0205000 + i * 0x1000;
154
+ int rxirq = 5 + i * 2, txirq = 6 + i * 2, combirq = 13 + i;
155
+
156
+ create_uart(mms, i + MPS3R_CPU_MAX, sysmem, baseaddr,
157
+ qdev_get_gpio_in(gicdev, txirq),
158
+ qdev_get_gpio_in(gicdev, rxirq),
159
+ qdev_get_gpio_in(DEVICE(&mms->uart_oflow), i * 2),
160
+ qdev_get_gpio_in(DEVICE(&mms->uart_oflow), i * 2 + 1),
161
+ qdev_get_gpio_in(gicdev, combirq));
162
+ }
163
164
mms->bootinfo.ram_size = machine->ram_size;
165
mms->bootinfo.board_id = -1;
80
--
166
--
81
2.16.2
167
2.34.1
82
168
83
169
diff view generated by jsdifflib
1
Add some assertions that if we're about to boot an AArch64 kernel,
1
Add the GPIO, watchdog, dual-timer and I2C devices to the mps3-an536
2
the board code has not mistakenly set either secure_boot or
2
board. These are all simple devices that just need to be created and
3
secure_board_setup. It doesn't make sense to set secure_boot,
3
wired up.
4
because all AArch64 kernels must be booted in non-secure mode.
5
6
It might in theory make sense to set secure_board_setup, but
7
we don't currently support that, because only the AArch32
8
bootloader[] code calls this hook; bootloader_aarch64[] does not.
9
Since we don't have a current need for this functionality, just
10
assert that we don't try to use it. If it's needed we'll add
11
it later.
12
4
13
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
14
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
6
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
15
Message-id: 20180313153458.26822-3-peter.maydell@linaro.org
7
Message-id: 20240206132931.38376-12-peter.maydell@linaro.org
16
---
8
---
17
hw/arm/boot.c | 7 +++++++
9
hw/arm/mps3r.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++
18
1 file changed, 7 insertions(+)
10
1 file changed, 59 insertions(+)
19
11
20
diff --git a/hw/arm/boot.c b/hw/arm/boot.c
12
diff --git a/hw/arm/mps3r.c b/hw/arm/mps3r.c
21
index XXXXXXX..XXXXXXX 100644
13
index XXXXXXX..XXXXXXX 100644
22
--- a/hw/arm/boot.c
14
--- a/hw/arm/mps3r.c
23
+++ b/hw/arm/boot.c
15
+++ b/hw/arm/mps3r.c
24
@@ -XXX,XX +XXX,XX @@ static void do_cpu_reset(void *opaque)
16
@@ -XXX,XX +XXX,XX @@
25
} else {
17
#include "sysemu/sysemu.h"
26
env->pstate = PSTATE_MODE_EL1h;
18
#include "hw/boards.h"
27
}
19
#include "hw/or-irq.h"
28
+ /* AArch64 kernels never boot in secure mode */
20
+#include "hw/qdev-clock.h"
29
+ assert(!info->secure_boot);
21
#include "hw/qdev-properties.h"
30
+ /* This hook is only supported for AArch32 currently:
22
#include "hw/arm/boot.h"
31
+ * bootloader_aarch64[] will not call the hook, and
23
#include "hw/arm/bsa.h"
32
+ * the code above has already dropped us into EL2 or EL1.
24
#include "hw/char/cmsdk-apb-uart.h"
33
+ */
25
+#include "hw/i2c/arm_sbcon_i2c.h"
34
+ assert(!info->secure_board_setup);
26
#include "hw/intc/arm_gicv3.h"
35
}
27
+#include "hw/misc/unimp.h"
36
28
+#include "hw/timer/cmsdk-apb-dualtimer.h"
37
/* Set to non-secure if not a secure boot */
29
+#include "hw/watchdog/cmsdk-apb-watchdog.h"
30
31
/* Define the layout of RAM and ROM in a board */
32
typedef struct RAMInfo {
33
@@ -XXX,XX +XXX,XX @@ struct MPS3RMachineState {
34
CMSDKAPBUART uart[MPS3R_CPU_MAX + MPS3R_UART_MAX];
35
OrIRQState cpu_uart_oflow[MPS3R_CPU_MAX];
36
OrIRQState uart_oflow;
37
+ CMSDKAPBWatchdog watchdog;
38
+ CMSDKAPBDualTimer dualtimer;
39
+ ArmSbconI2CState i2c[5];
40
+ Clock *clk;
41
};
42
43
#define TYPE_MPS3R_MACHINE "mps3r"
44
@@ -XXX,XX +XXX,XX @@ static void mps3r_common_init(MachineState *machine)
45
MemoryRegion *sysmem = get_system_memory();
46
DeviceState *gicdev;
47
48
+ mms->clk = clock_new(OBJECT(machine), "CLK");
49
+ clock_set_hz(mms->clk, CLK_FRQ);
50
+
51
for (const RAMInfo *ri = mmc->raminfo; ri->name; ri++) {
52
MemoryRegion *mr = mr_for_raminfo(mms, ri);
53
memory_region_add_subregion(sysmem, ri->base, mr);
54
@@ -XXX,XX +XXX,XX @@ static void mps3r_common_init(MachineState *machine)
55
qdev_get_gpio_in(gicdev, combirq));
56
}
57
58
+ for (int i = 0; i < 4; i++) {
59
+ /* CMSDK GPIO controllers */
60
+ g_autofree char *s = g_strdup_printf("gpio%d", i);
61
+ create_unimplemented_device(s, 0xe0000000 + i * 0x1000, 0x1000);
62
+ }
63
+
64
+ object_initialize_child(OBJECT(mms), "watchdog", &mms->watchdog,
65
+ TYPE_CMSDK_APB_WATCHDOG);
66
+ qdev_connect_clock_in(DEVICE(&mms->watchdog), "WDOGCLK", mms->clk);
67
+ sysbus_realize(SYS_BUS_DEVICE(&mms->watchdog), &error_fatal);
68
+ sysbus_connect_irq(SYS_BUS_DEVICE(&mms->watchdog), 0,
69
+ qdev_get_gpio_in(gicdev, 0));
70
+ sysbus_mmio_map(SYS_BUS_DEVICE(&mms->watchdog), 0, 0xe0100000);
71
+
72
+ object_initialize_child(OBJECT(mms), "dualtimer", &mms->dualtimer,
73
+ TYPE_CMSDK_APB_DUALTIMER);
74
+ qdev_connect_clock_in(DEVICE(&mms->dualtimer), "TIMCLK", mms->clk);
75
+ sysbus_realize(SYS_BUS_DEVICE(&mms->dualtimer), &error_fatal);
76
+ sysbus_connect_irq(SYS_BUS_DEVICE(&mms->dualtimer), 0,
77
+ qdev_get_gpio_in(gicdev, 3));
78
+ sysbus_connect_irq(SYS_BUS_DEVICE(&mms->dualtimer), 1,
79
+ qdev_get_gpio_in(gicdev, 1));
80
+ sysbus_connect_irq(SYS_BUS_DEVICE(&mms->dualtimer), 2,
81
+ qdev_get_gpio_in(gicdev, 2));
82
+ sysbus_mmio_map(SYS_BUS_DEVICE(&mms->dualtimer), 0, 0xe0101000);
83
+
84
+ for (int i = 0; i < ARRAY_SIZE(mms->i2c); i++) {
85
+ static const hwaddr i2cbase[] = {0xe0102000, /* Touch */
86
+ 0xe0103000, /* Audio */
87
+ 0xe0107000, /* Shield0 */
88
+ 0xe0108000, /* Shield1 */
89
+ 0xe0109000}; /* DDR4 EEPROM */
90
+ g_autofree char *s = g_strdup_printf("i2c%d", i);
91
+
92
+ object_initialize_child(OBJECT(mms), s, &mms->i2c[i],
93
+ TYPE_ARM_SBCON_I2C);
94
+ sysbus_realize(SYS_BUS_DEVICE(&mms->i2c[i]), &error_fatal);
95
+ sysbus_mmio_map(SYS_BUS_DEVICE(&mms->i2c[i]), 0, i2cbase[i]);
96
+ if (i != 2 && i != 3) {
97
+ /*
98
+ * internal-only bus: mark it full to avoid user-created
99
+ * i2c devices being plugged into it.
100
+ */
101
+ qbus_mark_full(qdev_get_child_bus(DEVICE(&mms->i2c[i]), "i2c"));
102
+ }
103
+ }
104
+
105
mms->bootinfo.ram_size = machine->ram_size;
106
mms->bootinfo.board_id = -1;
107
mms->bootinfo.loader_start = mmc->loader_start;
38
--
108
--
39
2.16.2
109
2.34.1
40
110
41
111
diff view generated by jsdifflib
1
The BCM2837 sets the Aff1 field of the MPIDR affinity values for the
1
Add the remaining devices (or unimplemented-device stubs) for
2
CPUs to 0, whereas the BCM2836 uses 0xf. Set this correctly, as it
2
this board: SPI controllers, SCC, FPGAIO, I2S, RTC, the
3
is required for Linux to boot.
3
QSPI write-config block, and ethernet.
4
4
5
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
5
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
6
Reviewed-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
6
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
7
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
7
Message-id: 20240206132931.38376-13-peter.maydell@linaro.org
8
Message-id: 20180313153458.26822-8-peter.maydell@linaro.org
9
---
8
---
10
hw/arm/bcm2836.c | 11 +++++++----
9
hw/arm/mps3r.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++
11
1 file changed, 7 insertions(+), 4 deletions(-)
10
1 file changed, 74 insertions(+)
12
11
13
diff --git a/hw/arm/bcm2836.c b/hw/arm/bcm2836.c
12
diff --git a/hw/arm/mps3r.c b/hw/arm/mps3r.c
14
index XXXXXXX..XXXXXXX 100644
13
index XXXXXXX..XXXXXXX 100644
15
--- a/hw/arm/bcm2836.c
14
--- a/hw/arm/mps3r.c
16
+++ b/hw/arm/bcm2836.c
15
+++ b/hw/arm/mps3r.c
17
@@ -XXX,XX +XXX,XX @@
16
@@ -XXX,XX +XXX,XX @@
18
17
#include "hw/char/cmsdk-apb-uart.h"
19
struct BCM283XInfo {
18
#include "hw/i2c/arm_sbcon_i2c.h"
20
const char *name;
19
#include "hw/intc/arm_gicv3.h"
21
+ int clusterid;
20
+#include "hw/misc/mps2-scc.h"
21
+#include "hw/misc/mps2-fpgaio.h"
22
#include "hw/misc/unimp.h"
23
+#include "hw/net/lan9118.h"
24
+#include "hw/rtc/pl031.h"
25
+#include "hw/ssi/pl022.h"
26
#include "hw/timer/cmsdk-apb-dualtimer.h"
27
#include "hw/watchdog/cmsdk-apb-watchdog.h"
28
29
@@ -XXX,XX +XXX,XX @@ struct MPS3RMachineState {
30
CMSDKAPBWatchdog watchdog;
31
CMSDKAPBDualTimer dualtimer;
32
ArmSbconI2CState i2c[5];
33
+ PL022State spi[3];
34
+ MPS2SCC scc;
35
+ MPS2FPGAIO fpgaio;
36
+ UnimplementedDeviceState i2s_audio;
37
+ PL031State rtc;
38
Clock *clk;
22
};
39
};
23
40
24
static const BCM283XInfo bcm283x_socs[] = {
41
@@ -XXX,XX +XXX,XX @@ static const RAMInfo an536_raminfo[] = {
25
{
42
}
26
.name = TYPE_BCM2836,
27
+ .clusterid = 0xf,
28
},
29
{
30
.name = TYPE_BCM2837,
31
+ .clusterid = 0x0,
32
},
33
};
43
};
34
44
35
@@ -XXX,XX +XXX,XX @@ static void bcm2836_init(Object *obj)
45
+static const int an536_oscclk[] = {
36
static void bcm2836_realize(DeviceState *dev, Error **errp)
46
+ 24000000, /* 24MHz reference for RTC and timers */
47
+ 50000000, /* 50MHz ACLK */
48
+ 50000000, /* 50MHz MCLK */
49
+ 50000000, /* 50MHz GPUCLK */
50
+ 24576000, /* 24.576MHz AUDCLK */
51
+ 23750000, /* 23.75MHz HDLCDCLK */
52
+ 100000000, /* 100MHz DDR4_REF_CLK */
53
+};
54
+
55
static MemoryRegion *mr_for_raminfo(MPS3RMachineState *mms,
56
const RAMInfo *raminfo)
37
{
57
{
38
BCM283XState *s = BCM283X(dev);
58
@@ -XXX,XX +XXX,XX @@ static void mps3r_common_init(MachineState *machine)
39
+ BCM283XClass *bc = BCM283X_GET_CLASS(dev);
59
MPS3RMachineClass *mmc = MPS3R_MACHINE_GET_CLASS(mms);
40
+ const BCM283XInfo *info = bc->info;
60
MemoryRegion *sysmem = get_system_memory();
41
Object *obj;
61
DeviceState *gicdev;
42
Error *err = NULL;
62
+ QList *oscclk;
43
int n;
63
44
@@ -XXX,XX +XXX,XX @@ static void bcm2836_realize(DeviceState *dev, Error **errp)
64
mms->clk = clock_new(OBJECT(machine), "CLK");
45
qdev_get_gpio_in_named(DEVICE(&s->control), "gpu-fiq", 0));
65
clock_set_hz(mms->clk, CLK_FRQ);
46
66
@@ -XXX,XX +XXX,XX @@ static void mps3r_common_init(MachineState *machine)
47
for (n = 0; n < BCM283X_NCPUS; n++) {
67
}
48
- /* Mirror bcm2836, which has clusterid set to 0xf
68
}
49
- * TODO: this should be converted to a property of ARM_CPU
69
50
- */
70
+ for (int i = 0; i < ARRAY_SIZE(mms->spi); i++) {
51
- s->cpus[n].mp_affinity = 0xF00 | n;
71
+ g_autofree char *s = g_strdup_printf("spi%d", i);
52
+ /* TODO: this should be converted to a property of ARM_CPU */
72
+ hwaddr baseaddr = 0xe0104000 + i * 0x1000;
53
+ s->cpus[n].mp_affinity = (info->clusterid << 8) | n;
73
+
54
74
+ object_initialize_child(OBJECT(mms), s, &mms->spi[i], TYPE_PL022);
55
/* set periphbase/CBAR value for CPU-local registers */
75
+ sysbus_realize(SYS_BUS_DEVICE(&mms->spi[i]), &error_fatal);
56
object_property_set_int(OBJECT(&s->cpus[n]),
76
+ sysbus_mmio_map(SYS_BUS_DEVICE(&mms->spi[i]), 0, baseaddr);
77
+ sysbus_connect_irq(SYS_BUS_DEVICE(&mms->spi[i]), 0,
78
+ qdev_get_gpio_in(gicdev, 22 + i));
79
+ }
80
+
81
+ object_initialize_child(OBJECT(mms), "scc", &mms->scc, TYPE_MPS2_SCC);
82
+ qdev_prop_set_uint32(DEVICE(&mms->scc), "scc-cfg0", 0);
83
+ qdev_prop_set_uint32(DEVICE(&mms->scc), "scc-cfg4", 0x2);
84
+ qdev_prop_set_uint32(DEVICE(&mms->scc), "scc-aid", 0x00200008);
85
+ qdev_prop_set_uint32(DEVICE(&mms->scc), "scc-id", 0x41055360);
86
+ oscclk = qlist_new();
87
+ for (int i = 0; i < ARRAY_SIZE(an536_oscclk); i++) {
88
+ qlist_append_int(oscclk, an536_oscclk[i]);
89
+ }
90
+ qdev_prop_set_array(DEVICE(&mms->scc), "oscclk", oscclk);
91
+ sysbus_realize(SYS_BUS_DEVICE(&mms->scc), &error_fatal);
92
+ sysbus_mmio_map(SYS_BUS_DEVICE(&mms->scc), 0, 0xe0200000);
93
+
94
+ create_unimplemented_device("i2s-audio", 0xe0201000, 0x1000);
95
+
96
+ object_initialize_child(OBJECT(mms), "fpgaio", &mms->fpgaio,
97
+ TYPE_MPS2_FPGAIO);
98
+ qdev_prop_set_uint32(DEVICE(&mms->fpgaio), "prescale-clk", an536_oscclk[1]);
99
+ qdev_prop_set_uint32(DEVICE(&mms->fpgaio), "num-leds", 10);
100
+ qdev_prop_set_bit(DEVICE(&mms->fpgaio), "has-switches", true);
101
+ qdev_prop_set_bit(DEVICE(&mms->fpgaio), "has-dbgctrl", false);
102
+ sysbus_realize(SYS_BUS_DEVICE(&mms->fpgaio), &error_fatal);
103
+ sysbus_mmio_map(SYS_BUS_DEVICE(&mms->fpgaio), 0, 0xe0202000);
104
+
105
+ create_unimplemented_device("clcd", 0xe0209000, 0x1000);
106
+
107
+ object_initialize_child(OBJECT(mms), "rtc", &mms->rtc, TYPE_PL031);
108
+ sysbus_realize(SYS_BUS_DEVICE(&mms->rtc), &error_fatal);
109
+ sysbus_mmio_map(SYS_BUS_DEVICE(&mms->rtc), 0, 0xe020a000);
110
+ sysbus_connect_irq(SYS_BUS_DEVICE(&mms->rtc), 0,
111
+ qdev_get_gpio_in(gicdev, 4));
112
+
113
+ /*
114
+ * In hardware this is a LAN9220; the LAN9118 is software compatible
115
+ * except that it doesn't support the checksum-offload feature.
116
+ */
117
+ lan9118_init(0xe0300000,
118
+ qdev_get_gpio_in(gicdev, 18));
119
+
120
+ create_unimplemented_device("usb", 0xe0301000, 0x1000);
121
+ create_unimplemented_device("qspi-write-config", 0xe0600000, 0x1000);
122
+
123
mms->bootinfo.ram_size = machine->ram_size;
124
mms->bootinfo.board_id = -1;
125
mms->bootinfo.loader_start = mmc->loader_start;
57
--
126
--
58
2.16.2
127
2.34.1
59
128
60
129
diff view generated by jsdifflib
1
For the rpi1 and 2 we want to boot the Linux kernel via some
1
Add documentation for the mps3-an536 board type.
2
custom setup code that makes sure that the SMC instruction
3
acts as a no-op, because it's used for cache maintenance.
4
The rpi3 boots AArch64 kernels, which don't need SMC for
5
cache maintenance and always expect to be booted non-secure.
6
Don't fill in the aarch32-specific parts of the binfo struct.
7
2
8
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
3
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
9
Reviewed-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
4
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
10
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
5
Message-id: 20240206132931.38376-14-peter.maydell@linaro.org
11
Message-id: 20180313153458.26822-2-peter.maydell@linaro.org
12
---
6
---
13
hw/arm/raspi.c | 17 +++++++++++++----
7
docs/system/arm/mps2.rst | 37 ++++++++++++++++++++++++++++++++++---
14
1 file changed, 13 insertions(+), 4 deletions(-)
8
1 file changed, 34 insertions(+), 3 deletions(-)
15
9
16
diff --git a/hw/arm/raspi.c b/hw/arm/raspi.c
10
diff --git a/docs/system/arm/mps2.rst b/docs/system/arm/mps2.rst
17
index XXXXXXX..XXXXXXX 100644
11
index XXXXXXX..XXXXXXX 100644
18
--- a/hw/arm/raspi.c
12
--- a/docs/system/arm/mps2.rst
19
+++ b/hw/arm/raspi.c
13
+++ b/docs/system/arm/mps2.rst
20
@@ -XXX,XX +XXX,XX @@ static void setup_boot(MachineState *machine, int version, size_t ram_size)
14
@@ -XXX,XX +XXX,XX @@
21
binfo.board_id = raspi_boardid[version];
15
-Arm MPS2 and MPS3 boards (``mps2-an385``, ``mps2-an386``, ``mps2-an500``, ``mps2-an505``, ``mps2-an511``, ``mps2-an521``, ``mps3-an524``, ``mps3-an547``)
22
binfo.ram_size = ram_size;
16
-=========================================================================================================================================================
23
binfo.nb_cpus = smp_cpus;
17
+Arm MPS2 and MPS3 boards (``mps2-an385``, ``mps2-an386``, ``mps2-an500``, ``mps2-an505``, ``mps2-an511``, ``mps2-an521``, ``mps3-an524``, ``mps3-an536``, ``mps3-an547``)
24
- binfo.board_setup_addr = BOARDSETUP_ADDR;
18
+=========================================================================================================================================================================
25
- binfo.write_board_setup = write_board_setup;
19
26
- binfo.secure_board_setup = true;
20
-These board models all use Arm M-profile CPUs.
27
- binfo.secure_boot = true;
21
+These board models use Arm M-profile or R-profile CPUs.
22
23
The Arm MPS2, MPS2+ and MPS3 dev boards are FPGA based (the 2+ has a
24
bigger FPGA but is otherwise the same as the 2; the 3 has a bigger
25
@@ -XXX,XX +XXX,XX @@ FPGA image.
26
27
QEMU models the following FPGA images:
28
29
+FPGA images using M-profile CPUs:
28
+
30
+
29
+ if (version <= 2) {
31
``mps2-an385``
30
+ /* The rpi1 and 2 require some custom setup code to run in Secure
32
Cortex-M3 as documented in Arm Application Note AN385
31
+ * mode before booting a kernel (to set up the SMC vectors so
33
``mps2-an386``
32
+ * that we get a no-op SMC; this is used by Linux to call the
34
@@ -XXX,XX +XXX,XX @@ QEMU models the following FPGA images:
33
+ * firmware for some cache maintenance operations.
35
``mps3-an547``
34
+ * The rpi3 doesn't need this.
36
Cortex-M55 on an MPS3, as documented in Arm Application Note AN547
35
+ */
37
36
+ binfo.board_setup_addr = BOARDSETUP_ADDR;
38
+FPGA images using R-profile CPUs:
37
+ binfo.write_board_setup = write_board_setup;
39
+
38
+ binfo.secure_board_setup = true;
40
+``mps3-an536``
39
+ binfo.secure_boot = true;
41
+ Dual Cortex-R52 on an MPS3, as documented in Arm Application Note AN536
40
+ }
42
+
41
43
Differences between QEMU and real hardware:
42
/* Pi2 and Pi3 requires SMP setup */
44
43
if (version >= 2) {
45
- AN385/AN386 remapping of low 16K of memory to either ZBT SSRAM1 or to
46
@@ -XXX,XX +XXX,XX @@ Differences between QEMU and real hardware:
47
flash, but only as simple ROM, so attempting to rewrite the flash
48
from the guest will fail
49
- QEMU does not model the USB controller in MPS3 boards
50
+- AN536 does not support runtime control of CPU reset and halt via
51
+ the SCC CFG_REG0 register.
52
+- AN536 does not support enabling or disabling the flash and ATCM
53
+ interfaces via the SCC CFG_REG1 register.
54
+- AN536 does not support setting of the initial vector table
55
+ base address via the SCC CFG_REG6 and CFG_REG7 register config,
56
+ and does not provide a mechanism for specifying these values at
57
+ startup, so all guest images must be built to start from TCM
58
+ (i.e. to expect the interrupt vector base at 0 from reset).
59
+- AN536 defaults to only creating a single CPU; this is the equivalent
60
+ of the way the real FPGA image usually runs with the second Cortex-R52
61
+ held in halt via the initial SCC CFG_REG0 register setting. You can
62
+ create the second CPU with ``-smp 2``; both CPUs will then start
63
+ execution immediately on startup.
64
+
65
+Note that for the AN536 the first UART is accessible only by
66
+CPU0, and the second UART is accessible only by CPU1. The
67
+first UART accessible shared between both CPUs is the third
68
+UART. Guest software might therefore be built to use either
69
+the first UART or the third UART; if you don't see any output
70
+from the UART you are looking at, try one of the others.
71
+(Even if the AN536 machine is started with a single CPU and so
72
+no "CPU1-only UART", the UART numbering remains the same,
73
+with the third UART being the first of the shared ones.)
74
75
Machine-specific options
76
""""""""""""""""""""""""
44
--
77
--
45
2.16.2
78
2.34.1
46
79
47
80
diff view generated by jsdifflib