From: Alistair Francis <alistair.francis@wdc.com> The following changes since commit 8d5fcb1990bc64b62c0bc12121fe510940be5664: Merge tag 'python-pull-request' of https://gitlab.com/jsnow/qemu into staging (2021-11-17 07:41:08 +0100) are available in the Git repository at: git@github.com:alistair23/qemu.git tags/pull-riscv-to-apply-20211117-1 for you to fetch changes up to c94c239496256f1f1cb589825d052c2f3e26ebf6: meson.build: Merge riscv32 and riscv64 cpu family (2021-11-17 19:18:22 +1000) ---------------------------------------------------------------- Sixth RISC-V PR for QEMU 6.2 - Fix build for riscv hosts - Soft code alphabetically ---------------------------------------------------------------- Bin Meng (1): target/riscv: machine: Sort the .subsections Richard Henderson (1): meson.build: Merge riscv32 and riscv64 cpu family meson.build | 6 ++++ target/riscv/machine.c | 92 +++++++++++++++++++++++++------------------------- 2 files changed, 52 insertions(+), 46 deletions(-) From: Bin Meng <bin.meng@windriver.com> Move the codes around so that the order of .subsections matches the one they are referenced in vmstate_riscv_cpu. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211030030606.32297-1-bmeng.cn@gmail.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/machine.c | 92 +++++++++++++++++++++--------------------- 1 file changed, 46 insertions(+), 46 deletions(-) diff --git a/target/riscv/machine.c b/target/riscv/machine.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/machine.c +++ b/target/riscv/machine.c @@ -XXX,XX +XXX,XX @@ static bool hyper_needed(void *opaque) return riscv_has_ext(env, RVH); } -static bool vector_needed(void *opaque) -{ - RISCVCPU *cpu = opaque; - CPURISCVState *env = &cpu->env; +static const VMStateDescription vmstate_hyper = { + .name = "cpu/hyper", + .version_id = 1, + .minimum_version_id = 1, + .needed = hyper_needed, + .fields = (VMStateField[]) { + VMSTATE_UINTTL(env.hstatus, RISCVCPU), + VMSTATE_UINTTL(env.hedeleg, RISCVCPU), + VMSTATE_UINTTL(env.hideleg, RISCVCPU), + VMSTATE_UINTTL(env.hcounteren, RISCVCPU), + VMSTATE_UINTTL(env.htval, RISCVCPU), + VMSTATE_UINTTL(env.htinst, RISCVCPU), + VMSTATE_UINTTL(env.hgatp, RISCVCPU), + VMSTATE_UINT64(env.htimedelta, RISCVCPU), - return riscv_has_ext(env, RVV); -} + VMSTATE_UINT64(env.vsstatus, RISCVCPU), + VMSTATE_UINTTL(env.vstvec, RISCVCPU), + VMSTATE_UINTTL(env.vsscratch, RISCVCPU), + VMSTATE_UINTTL(env.vsepc, RISCVCPU), + VMSTATE_UINTTL(env.vscause, RISCVCPU), + VMSTATE_UINTTL(env.vstval, RISCVCPU), + VMSTATE_UINTTL(env.vsatp, RISCVCPU), -static bool pointermasking_needed(void *opaque) + VMSTATE_UINTTL(env.mtval2, RISCVCPU), + VMSTATE_UINTTL(env.mtinst, RISCVCPU), + + VMSTATE_UINTTL(env.stvec_hs, RISCVCPU), + VMSTATE_UINTTL(env.sscratch_hs, RISCVCPU), + VMSTATE_UINTTL(env.sepc_hs, RISCVCPU), + VMSTATE_UINTTL(env.scause_hs, RISCVCPU), + VMSTATE_UINTTL(env.stval_hs, RISCVCPU), + VMSTATE_UINTTL(env.satp_hs, RISCVCPU), + VMSTATE_UINT64(env.mstatus_hs, RISCVCPU), + + VMSTATE_END_OF_LIST() + } +}; + +static bool vector_needed(void *opaque) { RISCVCPU *cpu = opaque; CPURISCVState *env = &cpu->env; - return riscv_has_ext(env, RVJ); + return riscv_has_ext(env, RVV); } static const VMStateDescription vmstate_vector = { @@ -XXX,XX +XXX,XX @@ static const VMStateDescription vmstate_vector = { } }; +static bool pointermasking_needed(void *opaque) +{ + RISCVCPU *cpu = opaque; + CPURISCVState *env = &cpu->env; + + return riscv_has_ext(env, RVJ); +} + static const VMStateDescription vmstate_pointermasking = { .name = "cpu/pointer_masking", .version_id = 1, @@ -XXX,XX +XXX,XX @@ static const VMStateDescription vmstate_pointermasking = { } }; -static const VMStateDescription vmstate_hyper = { - .name = "cpu/hyper", - .version_id = 1, - .minimum_version_id = 1, - .needed = hyper_needed, - .fields = (VMStateField[]) { - VMSTATE_UINTTL(env.hstatus, RISCVCPU), - VMSTATE_UINTTL(env.hedeleg, RISCVCPU), - VMSTATE_UINTTL(env.hideleg, RISCVCPU), - VMSTATE_UINTTL(env.hcounteren, RISCVCPU), - VMSTATE_UINTTL(env.htval, RISCVCPU), - VMSTATE_UINTTL(env.htinst, RISCVCPU), - VMSTATE_UINTTL(env.hgatp, RISCVCPU), - VMSTATE_UINT64(env.htimedelta, RISCVCPU), - - VMSTATE_UINT64(env.vsstatus, RISCVCPU), - VMSTATE_UINTTL(env.vstvec, RISCVCPU), - VMSTATE_UINTTL(env.vsscratch, RISCVCPU), - VMSTATE_UINTTL(env.vsepc, RISCVCPU), - VMSTATE_UINTTL(env.vscause, RISCVCPU), - VMSTATE_UINTTL(env.vstval, RISCVCPU), - VMSTATE_UINTTL(env.vsatp, RISCVCPU), - - VMSTATE_UINTTL(env.mtval2, RISCVCPU), - VMSTATE_UINTTL(env.mtinst, RISCVCPU), - - VMSTATE_UINTTL(env.stvec_hs, RISCVCPU), - VMSTATE_UINTTL(env.sscratch_hs, RISCVCPU), - VMSTATE_UINTTL(env.sepc_hs, RISCVCPU), - VMSTATE_UINTTL(env.scause_hs, RISCVCPU), - VMSTATE_UINTTL(env.stval_hs, RISCVCPU), - VMSTATE_UINTTL(env.satp_hs, RISCVCPU), - VMSTATE_UINT64(env.mstatus_hs, RISCVCPU), - - VMSTATE_END_OF_LIST() - } -}; - const VMStateDescription vmstate_riscv_cpu = { .name = "cpu", .version_id = 3, -- 2.31.1 From: Richard Henderson <richard.henderson@linaro.org> In ba0e73336200, we merged riscv32 and riscv64 in configure. However, meson does not treat them the same. We need to merge them here as well. Fixes: ba0e73336200 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20211116095042.335224-1-richard.henderson@linaro.org Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- meson.build | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/meson.build b/meson.build index XXXXXXX..XXXXXXX 100644 --- a/meson.build +++ b/meson.build @@ -XXX,XX +XXX,XX @@ supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv', 'x86', 'x86_64', 'arm', 'aarch64', 'mips', 'mips64', 'sparc', 'sparc64'] cpu = host_machine.cpu_family() + +# Unify riscv* to a single family. +if cpu in ['riscv32', 'riscv64'] + cpu = 'riscv' +endif + targetos = host_machine.system() if cpu in ['x86', 'x86_64'] -- 2.31.1 The following changes since commit c5ea91da443b458352c1b629b490ee6631775cb4: Merge tag 'pull-trivial-patches' of https://gitlab.com/mjt0k/qemu into staging (2023-09-08 10:06:25 -0400) are available in the Git repository at: https://github.com/alistair23/qemu.git tags/pull-riscv-to-apply-20230911 for you to fetch changes up to e7a03409f29e2da59297d55afbaec98c96e43e3a: target/riscv: don't read CSR in riscv_csrrw_do64 (2023-09-11 11:45:55 +1000) ---------------------------------------------------------------- First RISC-V PR for 8.2 * Remove 'host' CPU from TCG * riscv_htif Fixup printing on big endian hosts * Add zmmul isa string * Add smepmp isa string * Fix page_check_range use in fault-only-first * Use existing lookup tables for MixColumns * Add RISC-V vector cryptographic instruction set support * Implement WARL behaviour for mcountinhibit/mcounteren * Add Zihintntl extension ISA string to DTS * Fix zfa fleq.d and fltq.d * Fix upper/lower mtime write calculation * Make rtc variable names consistent * Use abi type for linux-user target_ucontext * Add RISC-V KVM AIA Support * Fix riscv,pmu DT node path in the virt machine * Update CSR bits name for svadu extension * Mark zicond non-experimental * Fix satp_mode_finalize() when satp_mode.supported = 0 * Fix non-KVM --enable-debug build * Add new extensions to hwprobe * Use accelerated helper for AES64KS1I * Allocate itrigger timers only once * Respect mseccfg.RLB for pmpaddrX changes * Align the AIA model to v1.0 ratified spec * Don't read the CSR in riscv_csrrw_do64 ---------------------------------------------------------------- Akihiko Odaki (1): target/riscv: Allocate itrigger timers only once Ard Biesheuvel (2): target/riscv: Use existing lookup tables for MixColumns target/riscv: Use accelerated helper for AES64KS1I Conor Dooley (1): hw/riscv: virt: Fix riscv,pmu DT node path Daniel Henrique Barboza (6): target/riscv/cpu.c: do not run 'host' CPU with TCG target/riscv/cpu.c: add zmmul isa string target/riscv/cpu.c: add smepmp isa string target/riscv: fix satp_mode_finalize() when satp_mode.supported = 0 hw/riscv/virt.c: fix non-KVM --enable-debug build hw/intc/riscv_aplic.c fix non-KVM --enable-debug build Dickon Hood (2): target/riscv: Refactor translation of vector-widening instruction target/riscv: Add Zvbb ISA extension support Jason Chien (3): target/riscv: Add Zihintntl extension ISA string to DTS hw/intc: Fix upper/lower mtime write calculation hw/intc: Make rtc variable names consistent Kiran Ostrolenk (4): target/riscv: Refactor some of the generic vector functionality target/riscv: Refactor vector-vector translation macro target/riscv: Refactor some of the generic vector functionality target/riscv: Add Zvknh ISA extension support LIU Zhiwei (3): target/riscv: Fix page_check_range use in fault-only-first target/riscv: Fix zfa fleq.d and fltq.d linux-user/riscv: Use abi type for target_ucontext Lawrence Hunter (2): target/riscv: Add Zvbc ISA extension support target/riscv: Add Zvksh ISA extension support Leon Schuermann (1): target/riscv/pmp.c: respect mseccfg.RLB for pmpaddrX changes Max Chou (3): crypto: Create sm4_subword crypto: Add SM4 constant parameter CK target/riscv: Add Zvksed ISA extension support Nazar Kazakov (4): target/riscv: Remove redundant "cpu_vl == 0" checks target/riscv: Move vector translation checks target/riscv: Add Zvkned ISA extension support target/riscv: Add Zvkg ISA extension support Nikita Shubin (1): target/riscv: don't read CSR in riscv_csrrw_do64 Rob Bradford (1): target/riscv: Implement WARL behaviour for mcountinhibit/mcounteren Robbin Ehn (1): linux-user/riscv: Add new extensions to hwprobe Thomas Huth (2): hw/char/riscv_htif: Fix printing of console characters on big endian hosts hw/char/riscv_htif: Fix the console syscall on big endian hosts Tommy Wu (1): target/riscv: Align the AIA model to v1.0 ratified spec Vineet Gupta (1): riscv: zicond: make non-experimental Weiwei Li (1): target/riscv: Update CSR bits name for svadu extension Yong-Xuan Wang (5): target/riscv: support the AIA device emulation with KVM enabled target/riscv: check the in-kernel irqchip support target/riscv: Create an KVM AIA irqchip target/riscv: update APLIC and IMSIC to support KVM AIA target/riscv: select KVM AIA in riscv virt machine include/crypto/aes.h | 7 + include/crypto/sm4.h | 9 + target/riscv/cpu_bits.h | 8 +- target/riscv/cpu_cfg.h | 9 + target/riscv/debug.h | 3 +- target/riscv/helper.h | 98 +++ target/riscv/kvm_riscv.h | 5 + target/riscv/vector_internals.h | 228 +++++++ target/riscv/insn32.decode | 58 ++ crypto/aes.c | 4 +- crypto/sm4.c | 10 + hw/char/riscv_htif.c | 12 +- hw/intc/riscv_aclint.c | 11 +- hw/intc/riscv_aplic.c | 52 +- hw/intc/riscv_imsic.c | 25 +- hw/riscv/virt.c | 374 ++++++------ linux-user/riscv/signal.c | 4 +- linux-user/syscall.c | 14 +- target/arm/tcg/crypto_helper.c | 10 +- target/riscv/cpu.c | 83 ++- target/riscv/cpu_helper.c | 6 +- target/riscv/crypto_helper.c | 51 +- target/riscv/csr.c | 54 +- target/riscv/debug.c | 15 +- target/riscv/kvm.c | 201 ++++++- target/riscv/pmp.c | 4 + target/riscv/translate.c | 1 + target/riscv/vcrypto_helper.c | 970 ++++++++++++++++++++++++++++++ target/riscv/vector_helper.c | 245 +------- target/riscv/vector_internals.c | 81 +++ target/riscv/insn_trans/trans_rvv.c.inc | 171 +++--- target/riscv/insn_trans/trans_rvvk.c.inc | 606 +++++++++++++++++++ target/riscv/insn_trans/trans_rvzfa.c.inc | 4 +- target/riscv/meson.build | 4 +- 34 files changed, 2785 insertions(+), 652 deletions(-) create mode 100644 target/riscv/vector_internals.h create mode 100644 target/riscv/vcrypto_helper.c create mode 100644 target/riscv/vector_internals.c create mode 100644 target/riscv/insn_trans/trans_rvvk.c.inc From: Daniel Henrique Barboza <dbarboza@ventanamicro.com> The 'host' CPU is available in a CONFIG_KVM build and it's currently available for all accels, but is a KVM only CPU. This means that in a RISC-V KVM capable host we can do things like this: $ ./build/qemu-system-riscv64 -M virt,accel=tcg -cpu host --nographic qemu-system-riscv64: H extension requires priv spec 1.12.0 This CPU does not have a priv spec because we don't filter its extensions via priv spec. We shouldn't be reaching riscv_cpu_realize_tcg() at all with the 'host' CPU. We don't have a way to filter the 'host' CPU out of the available CPU options (-cpu help) if the build includes both KVM and TCG. What we can do is to error out during riscv_cpu_realize_tcg() if the user chooses the 'host' CPU with accel=tcg: $ ./build/qemu-system-riscv64 -M virt,accel=tcg -cpu host --nographic qemu-system-riscv64: 'host' CPU is not compatible with TCG acceleration Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230721133411.474105-1-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static void riscv_cpu_realize_tcg(DeviceState *dev, Error **errp) CPURISCVState *env = &cpu->env; Error *local_err = NULL; + if (object_dynamic_cast(OBJECT(dev), TYPE_RISCV_CPU_HOST)) { + error_setg(errp, "'host' CPU is not compatible with TCG acceleration"); + return; + } + riscv_cpu_validate_misa_mxl(cpu, &local_err); if (local_err != NULL) { error_propagate(errp, local_err); -- 2.41.0 From: Thomas Huth <thuth@redhat.com> The character that should be printed is stored in the 64 bit "payload" variable. The code currently tries to print it by taking the address of the variable and passing this pointer to qemu_chr_fe_write(). However, this only works on little endian hosts where the least significant bits are stored on the lowest address. To do this in a portable way, we have to store the value in an uint8_t variable instead. Fixes: 5033606780 ("RISC-V HTIF Console") Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng@tinylab.org> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230721094720.902454-2-thuth@redhat.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- hw/char/riscv_htif.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/char/riscv_htif.c b/hw/char/riscv_htif.c index XXXXXXX..XXXXXXX 100644 --- a/hw/char/riscv_htif.c +++ b/hw/char/riscv_htif.c @@ -XXX,XX +XXX,XX @@ static void htif_handle_tohost_write(HTIFState *s, uint64_t val_written) s->tohost = 0; /* clear to indicate we read */ return; } else if (cmd == HTIF_CONSOLE_CMD_PUTC) { - qemu_chr_fe_write(&s->chr, (uint8_t *)&payload, 1); + uint8_t ch = (uint8_t)payload; + qemu_chr_fe_write(&s->chr, &ch, 1); resp = 0x100 | (uint8_t)payload; } else { qemu_log("HTIF device %d: unknown command\n", device); -- 2.41.0 From: Thomas Huth <thuth@redhat.com> Values that have been read via cpu_physical_memory_read() from the guest's memory have to be swapped in case the host endianess differs from the guest. Fixes: a6e13e31d5 ("riscv_htif: Support console output via proxy syscall") Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng@tinylab.org> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-Id: <20230721094720.902454-3-thuth@redhat.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- hw/char/riscv_htif.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/hw/char/riscv_htif.c b/hw/char/riscv_htif.c index XXXXXXX..XXXXXXX 100644 --- a/hw/char/riscv_htif.c +++ b/hw/char/riscv_htif.c @@ -XXX,XX +XXX,XX @@ #include "qemu/timer.h" #include "qemu/error-report.h" #include "exec/address-spaces.h" +#include "exec/tswap.h" #include "sysemu/dma.h" #define RISCV_DEBUG_HTIF 0 @@ -XXX,XX +XXX,XX @@ static void htif_handle_tohost_write(HTIFState *s, uint64_t val_written) } else { uint64_t syscall[8]; cpu_physical_memory_read(payload, syscall, sizeof(syscall)); - if (syscall[0] == PK_SYS_WRITE && - syscall[1] == HTIF_DEV_CONSOLE && - syscall[3] == HTIF_CONSOLE_CMD_PUTC) { + if (tswap64(syscall[0]) == PK_SYS_WRITE && + tswap64(syscall[1]) == HTIF_DEV_CONSOLE && + tswap64(syscall[3]) == HTIF_CONSOLE_CMD_PUTC) { uint8_t ch; - cpu_physical_memory_read(syscall[2], &ch, 1); + cpu_physical_memory_read(tswap64(syscall[2]), &ch, 1); qemu_chr_fe_write(&s->chr, &ch, 1); resp = 0x100 | (uint8_t)payload; } else { -- 2.41.0 From: Daniel Henrique Barboza <dbarboza@ventanamicro.com> zmmul was promoted from experimental to ratified in commit 6d00ffad4e95. Add a riscv,isa string for it. Fixes: 6d00ffad4e95 ("target/riscv: move zmmul out of the experimental properties") Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230720132424.371132-2-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zicsr, PRIV_VERSION_1_10_0, ext_icsr), ISA_EXT_DATA_ENTRY(zifencei, PRIV_VERSION_1_10_0, ext_ifencei), ISA_EXT_DATA_ENTRY(zihintpause, PRIV_VERSION_1_10_0, ext_zihintpause), + ISA_EXT_DATA_ENTRY(zmmul, PRIV_VERSION_1_12_0, ext_zmmul), ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs), ISA_EXT_DATA_ENTRY(zfa, PRIV_VERSION_1_12_0, ext_zfa), ISA_EXT_DATA_ENTRY(zfbfmin, PRIV_VERSION_1_12_0, ext_zfbfmin), -- 2.41.0 From: Daniel Henrique Barboza <dbarboza@ventanamicro.com> The cpu->cfg.epmp extension is still experimental, but it already has a 'smepmp' riscv,isa string. Add it. Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20230720132424.371132-3-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx), ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin), ISA_EXT_DATA_ENTRY(smaia, PRIV_VERSION_1_12_0, ext_smaia), + ISA_EXT_DATA_ENTRY(smepmp, PRIV_VERSION_1_12_0, epmp), ISA_EXT_DATA_ENTRY(smstateen, PRIV_VERSION_1_12_0, ext_smstateen), ISA_EXT_DATA_ENTRY(ssaia, PRIV_VERSION_1_12_0, ext_ssaia), ISA_EXT_DATA_ENTRY(sscofpmf, PRIV_VERSION_1_12_0, ext_sscofpmf), -- 2.41.0 From: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Commit bef6f008b98(accel/tcg: Return bool from page_check_range) converts integer return value to bool type. However, it wrongly converted the use of the API in riscv fault-only-first, where page_check_range < = 0, should be converted to !page_check_range. Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20230729031618.821-1-zhiwei_liu@linux.alibaba.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/vector_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -XXX,XX +XXX,XX @@ vext_ldff(void *vd, void *v0, target_ulong base, cpu_mmu_index(env, false)); if (host) { #ifdef CONFIG_USER_ONLY - if (page_check_range(addr, offset, PAGE_READ)) { + if (!page_check_range(addr, offset, PAGE_READ)) { vl = i; goto ProbeSuccess; } -- 2.41.0 From: Ard Biesheuvel <ardb@kernel.org> The AES MixColumns and InvMixColumns operations are relatively expensive 4x4 matrix multiplications in GF(2^8), which is why C implementations usually rely on precomputed lookup tables rather than performing the calculations on demand. Given that we already carry those tables in QEMU, we can just grab the right value in the implementation of the RISC-V AES32 instructions. Note that the tables in question are permuted according to the respective Sbox, so we can omit the Sbox lookup as well in this case. Cc: Richard Henderson <richard.henderson@linaro.org> Cc: Philippe Mathieu-Daudé <philmd@linaro.org> Cc: Zewen Ye <lustrew@foxmail.com> Cc: Weiwei Li <liweiwei@iscas.ac.cn> Cc: Junqiang Wang <wangjunqiang@iscas.ac.cn> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20230731084043.1791984-1-ardb@kernel.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- include/crypto/aes.h | 7 +++++++ crypto/aes.c | 4 ++-- target/riscv/crypto_helper.c | 34 ++++------------------------------ 3 files changed, 13 insertions(+), 32 deletions(-) diff --git a/include/crypto/aes.h b/include/crypto/aes.h index XXXXXXX..XXXXXXX 100644 --- a/include/crypto/aes.h +++ b/include/crypto/aes.h @@ -XXX,XX +XXX,XX @@ void AES_decrypt(const unsigned char *in, unsigned char *out, extern const uint8_t AES_sbox[256]; extern const uint8_t AES_isbox[256]; +/* +AES_Te0[x] = S [x].[02, 01, 01, 03]; +AES_Td0[x] = Si[x].[0e, 09, 0d, 0b]; +*/ + +extern const uint32_t AES_Te0[256], AES_Td0[256]; + #endif diff --git a/crypto/aes.c b/crypto/aes.c index XXXXXXX..XXXXXXX 100644 --- a/crypto/aes.c +++ b/crypto/aes.c @@ -XXX,XX +XXX,XX @@ AES_Td3[x] = Si[x].[09, 0d, 0b, 0e]; AES_Td4[x] = Si[x].[01, 01, 01, 01]; */ -static const uint32_t AES_Te0[256] = { +const uint32_t AES_Te0[256] = { 0xc66363a5U, 0xf87c7c84U, 0xee777799U, 0xf67b7b8dU, 0xfff2f20dU, 0xd66b6bbdU, 0xde6f6fb1U, 0x91c5c554U, 0x60303050U, 0x02010103U, 0xce6767a9U, 0x562b2b7dU, @@ -XXX,XX +XXX,XX @@ static const uint32_t AES_Te4[256] = { 0xb0b0b0b0U, 0x54545454U, 0xbbbbbbbbU, 0x16161616U, }; -static const uint32_t AES_Td0[256] = { +const uint32_t AES_Td0[256] = { 0x51f4a750U, 0x7e416553U, 0x1a17a4c3U, 0x3a275e96U, 0x3bab6bcbU, 0x1f9d45f1U, 0xacfa58abU, 0x4be30393U, 0x2030fa55U, 0xad766df6U, 0x88cc7691U, 0xf5024c25U, diff --git a/target/riscv/crypto_helper.c b/target/riscv/crypto_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/crypto_helper.c +++ b/target/riscv/crypto_helper.c @@ -XXX,XX +XXX,XX @@ #include "crypto/aes-round.h" #include "crypto/sm4.h" -#define AES_XTIME(a) \ - ((a << 1) ^ ((a & 0x80) ? 0x1b : 0)) - -#define AES_GFMUL(a, b) (( \ - (((b) & 0x1) ? (a) : 0) ^ \ - (((b) & 0x2) ? AES_XTIME(a) : 0) ^ \ - (((b) & 0x4) ? AES_XTIME(AES_XTIME(a)) : 0) ^ \ - (((b) & 0x8) ? AES_XTIME(AES_XTIME(AES_XTIME(a))) : 0)) & 0xFF) - -static inline uint32_t aes_mixcolumn_byte(uint8_t x, bool fwd) -{ - uint32_t u; - - if (fwd) { - u = (AES_GFMUL(x, 3) << 24) | (x << 16) | (x << 8) | - (AES_GFMUL(x, 2) << 0); - } else { - u = (AES_GFMUL(x, 0xb) << 24) | (AES_GFMUL(x, 0xd) << 16) | - (AES_GFMUL(x, 0x9) << 8) | (AES_GFMUL(x, 0xe) << 0); - } - return u; -} - #define sext32_xlen(x) (target_ulong)(int32_t)(x) static inline target_ulong aes32_operation(target_ulong shamt, @@ -XXX,XX +XXX,XX @@ static inline target_ulong aes32_operation(target_ulong shamt, bool enc, bool mix) { uint8_t si = rs2 >> shamt; - uint8_t so; uint32_t mixed; target_ulong res; if (enc) { - so = AES_sbox[si]; if (mix) { - mixed = aes_mixcolumn_byte(so, true); + mixed = be32_to_cpu(AES_Te0[si]); } else { - mixed = so; + mixed = AES_sbox[si]; } } else { - so = AES_isbox[si]; if (mix) { - mixed = aes_mixcolumn_byte(so, false); + mixed = be32_to_cpu(AES_Td0[si]); } else { - mixed = so; + mixed = AES_isbox[si]; } } mixed = rol32(mixed, shamt); -- 2.41.0 From: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> Take some functions/macros out of `vector_helper` and put them in a new module called `vector_internals`. This ensures they can be used by both vector and vector-crypto helpers (latter implemented in proceeding commits). Signed-off-by: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Max Chou <max.chou@sifive.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20230711165917.2629866-2-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/vector_internals.h | 182 +++++++++++++++++++++++++++++ target/riscv/vector_helper.c | 201 +------------------------------- target/riscv/vector_internals.c | 81 +++++++++++++ target/riscv/meson.build | 1 + 4 files changed, 265 insertions(+), 200 deletions(-) create mode 100644 target/riscv/vector_internals.h create mode 100644 target/riscv/vector_internals.c diff --git a/target/riscv/vector_internals.h b/target/riscv/vector_internals.h new file mode 100644 index XXXXXXX..XXXXXXX --- /dev/null +++ b/target/riscv/vector_internals.h @@ -XXX,XX +XXX,XX @@ +/* + * RISC-V Vector Extension Internals + * + * Copyright (c) 2020 T-Head Semiconductor Co., Ltd. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef TARGET_RISCV_VECTOR_INTERNALS_H +#define TARGET_RISCV_VECTOR_INTERNALS_H + +#include "qemu/osdep.h" +#include "qemu/bitops.h" +#include "cpu.h" +#include "tcg/tcg-gvec-desc.h" +#include "internals.h" + +static inline uint32_t vext_nf(uint32_t desc) +{ + return FIELD_EX32(simd_data(desc), VDATA, NF); +} + +/* + * Note that vector data is stored in host-endian 64-bit chunks, + * so addressing units smaller than that needs a host-endian fixup. + */ +#if HOST_BIG_ENDIAN +#define H1(x) ((x) ^ 7) +#define H1_2(x) ((x) ^ 6) +#define H1_4(x) ((x) ^ 4) +#define H2(x) ((x) ^ 3) +#define H4(x) ((x) ^ 1) +#define H8(x) ((x)) +#else +#define H1(x) (x) +#define H1_2(x) (x) +#define H1_4(x) (x) +#define H2(x) (x) +#define H4(x) (x) +#define H8(x) (x) +#endif + +/* + * Encode LMUL to lmul as following: + * LMUL vlmul lmul + * 1 000 0 + * 2 001 1 + * 4 010 2 + * 8 011 3 + * - 100 - + * 1/8 101 -3 + * 1/4 110 -2 + * 1/2 111 -1 + */ +static inline int32_t vext_lmul(uint32_t desc) +{ + return sextract32(FIELD_EX32(simd_data(desc), VDATA, LMUL), 0, 3); +} + +static inline uint32_t vext_vm(uint32_t desc) +{ + return FIELD_EX32(simd_data(desc), VDATA, VM); +} + +static inline uint32_t vext_vma(uint32_t desc) +{ + return FIELD_EX32(simd_data(desc), VDATA, VMA); +} + +static inline uint32_t vext_vta(uint32_t desc) +{ + return FIELD_EX32(simd_data(desc), VDATA, VTA); +} + +static inline uint32_t vext_vta_all_1s(uint32_t desc) +{ + return FIELD_EX32(simd_data(desc), VDATA, VTA_ALL_1S); +} + +/* + * Earlier designs (pre-0.9) had a varying number of bits + * per mask value (MLEN). In the 0.9 design, MLEN=1. + * (Section 4.5) + */ +static inline int vext_elem_mask(void *v0, int index) +{ + int idx = index / 64; + int pos = index % 64; + return (((uint64_t *)v0)[idx] >> pos) & 1; +} + +/* + * Get number of total elements, including prestart, body and tail elements. + * Note that when LMUL < 1, the tail includes the elements past VLMAX that + * are held in the same vector register. + */ +static inline uint32_t vext_get_total_elems(CPURISCVState *env, uint32_t desc, + uint32_t esz) +{ + uint32_t vlenb = simd_maxsz(desc); + uint32_t sew = 1 << FIELD_EX64(env->vtype, VTYPE, VSEW); + int8_t emul = ctzl(esz) - ctzl(sew) + vext_lmul(desc) < 0 ? 0 : + ctzl(esz) - ctzl(sew) + vext_lmul(desc); + return (vlenb << emul) / esz; +} + +/* set agnostic elements to 1s */ +void vext_set_elems_1s(void *base, uint32_t is_agnostic, uint32_t cnt, + uint32_t tot); + +/* expand macro args before macro */ +#define RVVCALL(macro, ...) macro(__VA_ARGS__) + +/* (TD, T1, T2, TX1, TX2) */ +#define OP_UUU_B uint8_t, uint8_t, uint8_t, uint8_t, uint8_t +#define OP_UUU_H uint16_t, uint16_t, uint16_t, uint16_t, uint16_t +#define OP_UUU_W uint32_t, uint32_t, uint32_t, uint32_t, uint32_t +#define OP_UUU_D uint64_t, uint64_t, uint64_t, uint64_t, uint64_t + +/* operation of two vector elements */ +typedef void opivv2_fn(void *vd, void *vs1, void *vs2, int i); + +#define OPIVV2(NAME, TD, T1, T2, TX1, TX2, HD, HS1, HS2, OP) \ +static void do_##NAME(void *vd, void *vs1, void *vs2, int i) \ +{ \ + TX1 s1 = *((T1 *)vs1 + HS1(i)); \ + TX2 s2 = *((T2 *)vs2 + HS2(i)); \ + *((TD *)vd + HD(i)) = OP(s2, s1); \ +} + +void do_vext_vv(void *vd, void *v0, void *vs1, void *vs2, + CPURISCVState *env, uint32_t desc, + opivv2_fn *fn, uint32_t esz); + +/* generate the helpers for OPIVV */ +#define GEN_VEXT_VV(NAME, ESZ) \ +void HELPER(NAME)(void *vd, void *v0, void *vs1, \ + void *vs2, CPURISCVState *env, \ + uint32_t desc) \ +{ \ + do_vext_vv(vd, v0, vs1, vs2, env, desc, \ + do_##NAME, ESZ); \ +} + +typedef void opivx2_fn(void *vd, target_long s1, void *vs2, int i); + +/* + * (T1)s1 gives the real operator type. + * (TX1)(T1)s1 expands the operator type of widen or narrow operations. + */ +#define OPIVX2(NAME, TD, T1, T2, TX1, TX2, HD, HS2, OP) \ +static void do_##NAME(void *vd, target_long s1, void *vs2, int i) \ +{ \ + TX2 s2 = *((T2 *)vs2 + HS2(i)); \ + *((TD *)vd + HD(i)) = OP(s2, (TX1)(T1)s1); \ +} + +void do_vext_vx(void *vd, void *v0, target_long s1, void *vs2, + CPURISCVState *env, uint32_t desc, + opivx2_fn fn, uint32_t esz); + +/* generate the helpers for OPIVX */ +#define GEN_VEXT_VX(NAME, ESZ) \ +void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ + void *vs2, CPURISCVState *env, \ + uint32_t desc) \ +{ \ + do_vext_vx(vd, v0, s1, vs2, env, desc, \ + do_##NAME, ESZ); \ +} + +#endif /* TARGET_RISCV_VECTOR_INTERNALS_H */ diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -XXX,XX +XXX,XX @@ #include "fpu/softfloat.h" #include "tcg/tcg-gvec-desc.h" #include "internals.h" +#include "vector_internals.h" #include <math.h> target_ulong HELPER(vsetvl)(CPURISCVState *env, target_ulong s1, @@ -XXX,XX +XXX,XX @@ target_ulong HELPER(vsetvl)(CPURISCVState *env, target_ulong s1, return vl; } -/* - * Note that vector data is stored in host-endian 64-bit chunks, - * so addressing units smaller than that needs a host-endian fixup. - */ -#if HOST_BIG_ENDIAN -#define H1(x) ((x) ^ 7) -#define H1_2(x) ((x) ^ 6) -#define H1_4(x) ((x) ^ 4) -#define H2(x) ((x) ^ 3) -#define H4(x) ((x) ^ 1) -#define H8(x) ((x)) -#else -#define H1(x) (x) -#define H1_2(x) (x) -#define H1_4(x) (x) -#define H2(x) (x) -#define H4(x) (x) -#define H8(x) (x) -#endif - -static inline uint32_t vext_nf(uint32_t desc) -{ - return FIELD_EX32(simd_data(desc), VDATA, NF); -} - -static inline uint32_t vext_vm(uint32_t desc) -{ - return FIELD_EX32(simd_data(desc), VDATA, VM); -} - -/* - * Encode LMUL to lmul as following: - * LMUL vlmul lmul - * 1 000 0 - * 2 001 1 - * 4 010 2 - * 8 011 3 - * - 100 - - * 1/8 101 -3 - * 1/4 110 -2 - * 1/2 111 -1 - */ -static inline int32_t vext_lmul(uint32_t desc) -{ - return sextract32(FIELD_EX32(simd_data(desc), VDATA, LMUL), 0, 3); -} - -static inline uint32_t vext_vta(uint32_t desc) -{ - return FIELD_EX32(simd_data(desc), VDATA, VTA); -} - -static inline uint32_t vext_vma(uint32_t desc) -{ - return FIELD_EX32(simd_data(desc), VDATA, VMA); -} - -static inline uint32_t vext_vta_all_1s(uint32_t desc) -{ - return FIELD_EX32(simd_data(desc), VDATA, VTA_ALL_1S); -} - /* * Get the maximum number of elements can be operated. * @@ -XXX,XX +XXX,XX @@ static inline uint32_t vext_max_elems(uint32_t desc, uint32_t log2_esz) return scale < 0 ? vlenb >> -scale : vlenb << scale; } -/* - * Get number of total elements, including prestart, body and tail elements. - * Note that when LMUL < 1, the tail includes the elements past VLMAX that - * are held in the same vector register. - */ -static inline uint32_t vext_get_total_elems(CPURISCVState *env, uint32_t desc, - uint32_t esz) -{ - uint32_t vlenb = simd_maxsz(desc); - uint32_t sew = 1 << FIELD_EX64(env->vtype, VTYPE, VSEW); - int8_t emul = ctzl(esz) - ctzl(sew) + vext_lmul(desc) < 0 ? 0 : - ctzl(esz) - ctzl(sew) + vext_lmul(desc); - return (vlenb << emul) / esz; -} - static inline target_ulong adjust_addr(CPURISCVState *env, target_ulong addr) { return (addr & ~env->cur_pmmask) | env->cur_pmbase; @@ -XXX,XX +XXX,XX @@ static void probe_pages(CPURISCVState *env, target_ulong addr, } } -/* set agnostic elements to 1s */ -static void vext_set_elems_1s(void *base, uint32_t is_agnostic, uint32_t cnt, - uint32_t tot) -{ - if (is_agnostic == 0) { - /* policy undisturbed */ - return; - } - if (tot - cnt == 0) { - return; - } - memset(base + cnt, -1, tot - cnt); -} - static inline void vext_set_elem_mask(void *v0, int index, uint8_t value) { @@ -XXX,XX +XXX,XX @@ static inline void vext_set_elem_mask(void *v0, int index, ((uint64_t *)v0)[idx] = deposit64(old, pos, 1, value); } -/* - * Earlier designs (pre-0.9) had a varying number of bits - * per mask value (MLEN). In the 0.9 design, MLEN=1. - * (Section 4.5) - */ -static inline int vext_elem_mask(void *v0, int index) -{ - int idx = index / 64; - int pos = index % 64; - return (((uint64_t *)v0)[idx] >> pos) & 1; -} - /* elements operations for load and store */ typedef void vext_ldst_elem_fn(CPURISCVState *env, abi_ptr addr, uint32_t idx, void *vd, uintptr_t retaddr); @@ -XXX,XX +XXX,XX @@ GEN_VEXT_ST_WHOLE(vs8r_v, int8_t, ste_b) * Vector Integer Arithmetic Instructions */ -/* expand macro args before macro */ -#define RVVCALL(macro, ...) macro(__VA_ARGS__) - /* (TD, T1, T2, TX1, TX2) */ #define OP_SSS_B int8_t, int8_t, int8_t, int8_t, int8_t #define OP_SSS_H int16_t, int16_t, int16_t, int16_t, int16_t #define OP_SSS_W int32_t, int32_t, int32_t, int32_t, int32_t #define OP_SSS_D int64_t, int64_t, int64_t, int64_t, int64_t -#define OP_UUU_B uint8_t, uint8_t, uint8_t, uint8_t, uint8_t -#define OP_UUU_H uint16_t, uint16_t, uint16_t, uint16_t, uint16_t -#define OP_UUU_W uint32_t, uint32_t, uint32_t, uint32_t, uint32_t -#define OP_UUU_D uint64_t, uint64_t, uint64_t, uint64_t, uint64_t #define OP_SUS_B int8_t, uint8_t, int8_t, uint8_t, int8_t #define OP_SUS_H int16_t, uint16_t, int16_t, uint16_t, int16_t #define OP_SUS_W int32_t, uint32_t, int32_t, uint32_t, int32_t @@ -XXX,XX +XXX,XX @@ GEN_VEXT_ST_WHOLE(vs8r_v, int8_t, ste_b) #define NOP_UUU_H uint16_t, uint16_t, uint32_t, uint16_t, uint32_t #define NOP_UUU_W uint32_t, uint32_t, uint64_t, uint32_t, uint64_t -/* operation of two vector elements */ -typedef void opivv2_fn(void *vd, void *vs1, void *vs2, int i); - -#define OPIVV2(NAME, TD, T1, T2, TX1, TX2, HD, HS1, HS2, OP) \ -static void do_##NAME(void *vd, void *vs1, void *vs2, int i) \ -{ \ - TX1 s1 = *((T1 *)vs1 + HS1(i)); \ - TX2 s2 = *((T2 *)vs2 + HS2(i)); \ - *((TD *)vd + HD(i)) = OP(s2, s1); \ -} #define DO_SUB(N, M) (N - M) #define DO_RSUB(N, M) (M - N) @@ -XXX,XX +XXX,XX @@ RVVCALL(OPIVV2, vsub_vv_h, OP_SSS_H, H2, H2, H2, DO_SUB) RVVCALL(OPIVV2, vsub_vv_w, OP_SSS_W, H4, H4, H4, DO_SUB) RVVCALL(OPIVV2, vsub_vv_d, OP_SSS_D, H8, H8, H8, DO_SUB) -static void do_vext_vv(void *vd, void *v0, void *vs1, void *vs2, - CPURISCVState *env, uint32_t desc, - opivv2_fn *fn, uint32_t esz) -{ - uint32_t vm = vext_vm(desc); - uint32_t vl = env->vl; - uint32_t total_elems = vext_get_total_elems(env, desc, esz); - uint32_t vta = vext_vta(desc); - uint32_t vma = vext_vma(desc); - uint32_t i; - - for (i = env->vstart; i < vl; i++) { - if (!vm && !vext_elem_mask(v0, i)) { - /* set masked-off elements to 1s */ - vext_set_elems_1s(vd, vma, i * esz, (i + 1) * esz); - continue; - } - fn(vd, vs1, vs2, i); - } - env->vstart = 0; - /* set tail elements to 1s */ - vext_set_elems_1s(vd, vta, vl * esz, total_elems * esz); -} - -/* generate the helpers for OPIVV */ -#define GEN_VEXT_VV(NAME, ESZ) \ -void HELPER(NAME)(void *vd, void *v0, void *vs1, \ - void *vs2, CPURISCVState *env, \ - uint32_t desc) \ -{ \ - do_vext_vv(vd, v0, vs1, vs2, env, desc, \ - do_##NAME, ESZ); \ -} - GEN_VEXT_VV(vadd_vv_b, 1) GEN_VEXT_VV(vadd_vv_h, 2) GEN_VEXT_VV(vadd_vv_w, 4) @@ -XXX,XX +XXX,XX @@ GEN_VEXT_VV(vsub_vv_h, 2) GEN_VEXT_VV(vsub_vv_w, 4) GEN_VEXT_VV(vsub_vv_d, 8) -typedef void opivx2_fn(void *vd, target_long s1, void *vs2, int i); - -/* - * (T1)s1 gives the real operator type. - * (TX1)(T1)s1 expands the operator type of widen or narrow operations. - */ -#define OPIVX2(NAME, TD, T1, T2, TX1, TX2, HD, HS2, OP) \ -static void do_##NAME(void *vd, target_long s1, void *vs2, int i) \ -{ \ - TX2 s2 = *((T2 *)vs2 + HS2(i)); \ - *((TD *)vd + HD(i)) = OP(s2, (TX1)(T1)s1); \ -} RVVCALL(OPIVX2, vadd_vx_b, OP_SSS_B, H1, H1, DO_ADD) RVVCALL(OPIVX2, vadd_vx_h, OP_SSS_H, H2, H2, DO_ADD) @@ -XXX,XX +XXX,XX @@ RVVCALL(OPIVX2, vrsub_vx_h, OP_SSS_H, H2, H2, DO_RSUB) RVVCALL(OPIVX2, vrsub_vx_w, OP_SSS_W, H4, H4, DO_RSUB) RVVCALL(OPIVX2, vrsub_vx_d, OP_SSS_D, H8, H8, DO_RSUB) -static void do_vext_vx(void *vd, void *v0, target_long s1, void *vs2, - CPURISCVState *env, uint32_t desc, - opivx2_fn fn, uint32_t esz) -{ - uint32_t vm = vext_vm(desc); - uint32_t vl = env->vl; - uint32_t total_elems = vext_get_total_elems(env, desc, esz); - uint32_t vta = vext_vta(desc); - uint32_t vma = vext_vma(desc); - uint32_t i; - - for (i = env->vstart; i < vl; i++) { - if (!vm && !vext_elem_mask(v0, i)) { - /* set masked-off elements to 1s */ - vext_set_elems_1s(vd, vma, i * esz, (i + 1) * esz); - continue; - } - fn(vd, s1, vs2, i); - } - env->vstart = 0; - /* set tail elements to 1s */ - vext_set_elems_1s(vd, vta, vl * esz, total_elems * esz); -} - -/* generate the helpers for OPIVX */ -#define GEN_VEXT_VX(NAME, ESZ) \ -void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ - void *vs2, CPURISCVState *env, \ - uint32_t desc) \ -{ \ - do_vext_vx(vd, v0, s1, vs2, env, desc, \ - do_##NAME, ESZ); \ -} - GEN_VEXT_VX(vadd_vx_b, 1) GEN_VEXT_VX(vadd_vx_h, 2) GEN_VEXT_VX(vadd_vx_w, 4) diff --git a/target/riscv/vector_internals.c b/target/riscv/vector_internals.c new file mode 100644 index XXXXXXX..XXXXXXX --- /dev/null +++ b/target/riscv/vector_internals.c @@ -XXX,XX +XXX,XX @@ +/* + * RISC-V Vector Extension Internals + * + * Copyright (c) 2020 T-Head Semiconductor Co., Ltd. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "vector_internals.h" + +/* set agnostic elements to 1s */ +void vext_set_elems_1s(void *base, uint32_t is_agnostic, uint32_t cnt, + uint32_t tot) +{ + if (is_agnostic == 0) { + /* policy undisturbed */ + return; + } + if (tot - cnt == 0) { + return ; + } + memset(base + cnt, -1, tot - cnt); +} + +void do_vext_vv(void *vd, void *v0, void *vs1, void *vs2, + CPURISCVState *env, uint32_t desc, + opivv2_fn *fn, uint32_t esz) +{ + uint32_t vm = vext_vm(desc); + uint32_t vl = env->vl; + uint32_t total_elems = vext_get_total_elems(env, desc, esz); + uint32_t vta = vext_vta(desc); + uint32_t vma = vext_vma(desc); + uint32_t i; + + for (i = env->vstart; i < vl; i++) { + if (!vm && !vext_elem_mask(v0, i)) { + /* set masked-off elements to 1s */ + vext_set_elems_1s(vd, vma, i * esz, (i + 1) * esz); + continue; + } + fn(vd, vs1, vs2, i); + } + env->vstart = 0; + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vta, vl * esz, total_elems * esz); +} + +void do_vext_vx(void *vd, void *v0, target_long s1, void *vs2, + CPURISCVState *env, uint32_t desc, + opivx2_fn fn, uint32_t esz) +{ + uint32_t vm = vext_vm(desc); + uint32_t vl = env->vl; + uint32_t total_elems = vext_get_total_elems(env, desc, esz); + uint32_t vta = vext_vta(desc); + uint32_t vma = vext_vma(desc); + uint32_t i; + + for (i = env->vstart; i < vl; i++) { + if (!vm && !vext_elem_mask(v0, i)) { + /* set masked-off elements to 1s */ + vext_set_elems_1s(vd, vma, i * esz, (i + 1) * esz); + continue; + } + fn(vd, s1, vs2, i); + } + env->vstart = 0; + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vta, vl * esz, total_elems * esz); +} diff --git a/target/riscv/meson.build b/target/riscv/meson.build index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/meson.build +++ b/target/riscv/meson.build @@ -XXX,XX +XXX,XX @@ riscv_ss.add(files( 'gdbstub.c', 'op_helper.c', 'vector_helper.c', + 'vector_internals.c', 'bitmanip_helper.c', 'translate.c', 'm128_helper.c', -- 2.41.0 From: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> Refactor the non SEW-specific stuff out of `GEN_OPIVV_TRANS` into function `opivv_trans` (similar to `opivi_trans`). `opivv_trans` will be used in proceeding vector-crypto commits. Signed-off-by: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Max Chou <max.chou@sifive.com> Message-ID: <20230711165917.2629866-3-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/insn_trans/trans_rvv.c.inc | 62 +++++++++++++------------ 1 file changed, 32 insertions(+), 30 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -XXX,XX +XXX,XX @@ GEN_OPIWX_WIDEN_TRANS(vwadd_wx) GEN_OPIWX_WIDEN_TRANS(vwsubu_wx) GEN_OPIWX_WIDEN_TRANS(vwsub_wx) +static bool opivv_trans(uint32_t vd, uint32_t vs1, uint32_t vs2, uint32_t vm, + gen_helper_gvec_4_ptr *fn, DisasContext *s) +{ + uint32_t data = 0; + TCGLabel *over = gen_new_label(); + tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); + + data = FIELD_DP32(data, VDATA, VM, vm); + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); + data = FIELD_DP32(data, VDATA, VTA, s->vta); + data = FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s); + data = FIELD_DP32(data, VDATA, VMA, s->vma); + tcg_gen_gvec_4_ptr(vreg_ofs(s, vd), vreg_ofs(s, 0), vreg_ofs(s, vs1), + vreg_ofs(s, vs2), cpu_env, s->cfg_ptr->vlen / 8, + s->cfg_ptr->vlen / 8, data, fn); + mark_vs_dirty(s); + gen_set_label(over); + return true; +} + /* Vector Integer Add-with-Carry / Subtract-with-Borrow Instructions */ /* OPIVV without GVEC IR */ -#define GEN_OPIVV_TRANS(NAME, CHECK) \ -static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ -{ \ - if (CHECK(s, a)) { \ - uint32_t data = 0; \ - static gen_helper_gvec_4_ptr * const fns[4] = { \ - gen_helper_##NAME##_b, gen_helper_##NAME##_h, \ - gen_helper_##NAME##_w, gen_helper_##NAME##_d, \ - }; \ - TCGLabel *over = gen_new_label(); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ - tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ - \ - data = FIELD_DP32(data, VDATA, VM, a->vm); \ - data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ - data = FIELD_DP32(data, VDATA, VTA, s->vta); \ - data = \ - FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s);\ - data = FIELD_DP32(data, VDATA, VMA, s->vma); \ - tcg_gen_gvec_4_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), \ - vreg_ofs(s, a->rs1), \ - vreg_ofs(s, a->rs2), cpu_env, \ - s->cfg_ptr->vlen / 8, \ - s->cfg_ptr->vlen / 8, data, \ - fns[s->sew]); \ - mark_vs_dirty(s); \ - gen_set_label(over); \ - return true; \ - } \ - return false; \ +#define GEN_OPIVV_TRANS(NAME, CHECK) \ +static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ +{ \ + if (CHECK(s, a)) { \ + static gen_helper_gvec_4_ptr * const fns[4] = { \ + gen_helper_##NAME##_b, gen_helper_##NAME##_h, \ + gen_helper_##NAME##_w, gen_helper_##NAME##_d, \ + }; \ + return opivv_trans(a->rd, a->rs1, a->rs2, a->vm, fns[s->sew], s);\ + } \ + return false; \ } /* -- 2.41.0 From: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Remove the redundant "vl == 0" check which is already included within the vstart >= vl check, when vl == 0. Signed-off-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Max Chou <max.chou@sifive.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20230711165917.2629866-4-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/insn_trans/trans_rvv.c.inc | 31 +------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -XXX,XX +XXX,XX @@ static bool ldst_us_trans(uint32_t vd, uint32_t rs1, uint32_t data, TCGv_i32 desc; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); dest = tcg_temp_new_ptr(); @@ -XXX,XX +XXX,XX @@ static bool ldst_stride_trans(uint32_t vd, uint32_t rs1, uint32_t rs2, TCGv_i32 desc; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); dest = tcg_temp_new_ptr(); @@ -XXX,XX +XXX,XX @@ static bool ldst_index_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, TCGv_i32 desc; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); dest = tcg_temp_new_ptr(); @@ -XXX,XX +XXX,XX @@ static bool ldff_trans(uint32_t vd, uint32_t rs1, uint32_t data, TCGv_i32 desc; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); dest = tcg_temp_new_ptr(); @@ -XXX,XX +XXX,XX @@ do_opivv_gvec(DisasContext *s, arg_rmrr *a, GVecGen3Fn *gvec_fn, return false; } - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) { @@ -XXX,XX +XXX,XX @@ static bool opivx_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t vm, uint32_t data = 0; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); dest = tcg_temp_new_ptr(); @@ -XXX,XX +XXX,XX @@ static bool opivi_trans(uint32_t vd, uint32_t imm, uint32_t vs2, uint32_t vm, uint32_t data = 0; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); dest = tcg_temp_new_ptr(); @@ -XXX,XX +XXX,XX @@ static bool do_opivv_widen(DisasContext *s, arg_rmrr *a, if (checkfn(s, a)) { uint32_t data = 0; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); data = FIELD_DP32(data, VDATA, VM, a->vm); @@ -XXX,XX +XXX,XX @@ static bool do_opiwv_widen(DisasContext *s, arg_rmrr *a, if (opiwv_widen_check(s, a)) { uint32_t data = 0; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); data = FIELD_DP32(data, VDATA, VM, a->vm); @@ -XXX,XX +XXX,XX @@ static bool opivv_trans(uint32_t vd, uint32_t vs1, uint32_t vs2, uint32_t vm, { uint32_t data = 0; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); data = FIELD_DP32(data, VDATA, VM, vm); @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ gen_helper_##NAME##_w, \ }; \ TCGLabel *over = gen_new_label(); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ \ data = FIELD_DP32(data, VDATA, VM, a->vm); \ @@ -XXX,XX +XXX,XX @@ static bool trans_vmv_v_v(DisasContext *s, arg_vmv_v_v *a) gen_helper_vmv_v_v_w, gen_helper_vmv_v_v_d, }; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); tcg_gen_gvec_2_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, a->rs1), @@ -XXX,XX +XXX,XX @@ static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_x *a) vext_check_ss(s, a->rd, 0, 1)) { TCGv s1; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); s1 = get_gpr(s, a->rs1, EXT_SIGN); @@ -XXX,XX +XXX,XX @@ static bool trans_vmv_v_i(DisasContext *s, arg_vmv_v_i *a) gen_helper_vmv_v_x_w, gen_helper_vmv_v_x_d, }; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); s1 = tcg_constant_i64(simm); @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ }; \ TCGLabel *over = gen_new_label(); \ gen_set_rm(s, RISCV_FRM_DYN); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ \ data = FIELD_DP32(data, VDATA, VM, a->vm); \ @@ -XXX,XX +XXX,XX @@ static bool opfvf_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, TCGv_i64 t1; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); dest = tcg_temp_new_ptr(); @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ }; \ TCGLabel *over = gen_new_label(); \ gen_set_rm(s, RISCV_FRM_DYN); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over);\ \ data = FIELD_DP32(data, VDATA, VM, a->vm); \ @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ }; \ TCGLabel *over = gen_new_label(); \ gen_set_rm(s, RISCV_FRM_DYN); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ \ data = FIELD_DP32(data, VDATA, VM, a->vm); \ @@ -XXX,XX +XXX,XX @@ static bool do_opfv(DisasContext *s, arg_rmr *a, uint32_t data = 0; TCGLabel *over = gen_new_label(); gen_set_rm_chkfrm(s, rm); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); data = FIELD_DP32(data, VDATA, VM, a->vm); @@ -XXX,XX +XXX,XX @@ static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a) gen_helper_vmv_v_x_d, }; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); t1 = tcg_temp_new_i64(); @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ }; \ TCGLabel *over = gen_new_label(); \ gen_set_rm_chkfrm(s, FRM); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ \ data = FIELD_DP32(data, VDATA, VM, a->vm); \ @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ }; \ TCGLabel *over = gen_new_label(); \ gen_set_rm(s, RISCV_FRM_DYN); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ \ data = FIELD_DP32(data, VDATA, VM, a->vm); \ @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ }; \ TCGLabel *over = gen_new_label(); \ gen_set_rm_chkfrm(s, FRM); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ \ data = FIELD_DP32(data, VDATA, VM, a->vm); \ @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ }; \ TCGLabel *over = gen_new_label(); \ gen_set_rm_chkfrm(s, FRM); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ \ data = FIELD_DP32(data, VDATA, VM, a->vm); \ @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_r *a) \ uint32_t data = 0; \ gen_helper_gvec_4_ptr *fn = gen_helper_##NAME; \ TCGLabel *over = gen_new_label(); \ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); \ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ \ data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ @@ -XXX,XX +XXX,XX @@ static bool trans_vid_v(DisasContext *s, arg_vid_v *a) require_vm(a->vm, a->rd)) { uint32_t data = 0; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); data = FIELD_DP32(data, VDATA, VM, a->vm); @@ -XXX,XX +XXX,XX @@ static bool trans_vmv_s_x(DisasContext *s, arg_vmv_s_x *a) TCGv s1; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); t1 = tcg_temp_new_i64(); @@ -XXX,XX +XXX,XX @@ static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a) TCGv_i64 t1; TCGLabel *over = gen_new_label(); - /* if vl == 0 or vstart >= vl, skip vector register write back */ - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); + /* if vstart >= vl, skip vector register write back */ tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); /* NaN-box f[rs1] */ @@ -XXX,XX +XXX,XX @@ static bool int_ext_op(DisasContext *s, arg_rmr *a, uint8_t seq) uint32_t data = 0; gen_helper_gvec_3_ptr *fn; TCGLabel *over = gen_new_label(); - tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); static gen_helper_gvec_3_ptr * const fns[6][4] = { -- 2.41.0 From: Lawrence Hunter <lawrence.hunter@codethink.co.uk> This commit adds support for the Zvbc vector-crypto extension, which consists of the following instructions: * vclmulh.[vx,vv] * vclmul.[vx,vv] Translation functions are defined in `target/riscv/insn_trans/trans_rvvk.c.inc` and helpers are defined in `target/riscv/vcrypto_helper.c`. Co-authored-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Co-authored-by: Max Chou <max.chou@sifive.com> Signed-off-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Signed-off-by: Lawrence Hunter <lawrence.hunter@codethink.co.uk> Signed-off-by: Max Chou <max.chou@sifive.com> [max.chou@sifive.com: Exposed x-zvbc property] Message-ID: <20230711165917.2629866-5-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu_cfg.h | 1 + target/riscv/helper.h | 6 +++ target/riscv/insn32.decode | 6 +++ target/riscv/cpu.c | 9 ++++ target/riscv/translate.c | 1 + target/riscv/vcrypto_helper.c | 59 ++++++++++++++++++++++ target/riscv/insn_trans/trans_rvvk.c.inc | 62 ++++++++++++++++++++++++ target/riscv/meson.build | 3 +- 8 files changed, 146 insertions(+), 1 deletion(-) create mode 100644 target/riscv/vcrypto_helper.c create mode 100644 target/riscv/insn_trans/trans_rvvk.c.inc diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -XXX,XX +XXX,XX @@ struct RISCVCPUConfig { bool ext_zve32f; bool ext_zve64f; bool ext_zve64d; + bool ext_zvbc; bool ext_zmmul; bool ext_zvfbfmin; bool ext_zvfbfwma; diff --git a/target/riscv/helper.h b/target/riscv/helper.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -XXX,XX +XXX,XX @@ DEF_HELPER_5(vfwcvtbf16_f_f_v, void, ptr, ptr, ptr, env, i32) DEF_HELPER_6(vfwmaccbf16_vv, void, ptr, ptr, ptr, ptr, env, i32) DEF_HELPER_6(vfwmaccbf16_vf, void, ptr, ptr, i64, ptr, env, i32) + +/* Vector crypto functions */ +DEF_HELPER_6(vclmul_vv, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vclmul_vx, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vclmulh_vv, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vclmulh_vx, void, ptr, ptr, tl, ptr, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -XXX,XX +XXX,XX @@ vfwcvtbf16_f_f_v 010010 . ..... 01101 001 ..... 1010111 @r2_vm # *** Zvfbfwma Standard Extension *** vfwmaccbf16_vv 111011 . ..... ..... 001 ..... 1010111 @r_vm vfwmaccbf16_vf 111011 . ..... ..... 101 ..... 1010111 @r_vm + +# *** Zvbc vector crypto extension *** +vclmul_vv 001100 . ..... ..... 010 ..... 1010111 @r_vm +vclmul_vx 001100 . ..... ..... 110 ..... 1010111 @r_vm +vclmulh_vv 001101 . ..... ..... 010 ..... 1010111 @r_vm +vclmulh_vx 001101 . ..... ..... 110 ..... 1010111 @r_vm diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zksed, PRIV_VERSION_1_12_0, ext_zksed), ISA_EXT_DATA_ENTRY(zksh, PRIV_VERSION_1_12_0, ext_zksh), ISA_EXT_DATA_ENTRY(zkt, PRIV_VERSION_1_12_0, ext_zkt), + ISA_EXT_DATA_ENTRY(zvbc, PRIV_VERSION_1_12_0, ext_zvbc), ISA_EXT_DATA_ENTRY(zve32f, PRIV_VERSION_1_10_0, ext_zve32f), ISA_EXT_DATA_ENTRY(zve64f, PRIV_VERSION_1_10_0, ext_zve64f), ISA_EXT_DATA_ENTRY(zve64d, PRIV_VERSION_1_10_0, ext_zve64d), @@ -XXX,XX +XXX,XX @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp) return; } + if (cpu->cfg.ext_zvbc && !cpu->cfg.ext_zve64f) { + error_setg(errp, "Zvbc extension requires V or Zve64{f,d} extensions"); + return; + } + if (cpu->cfg.ext_zk) { cpu->cfg.ext_zkn = true; cpu->cfg.ext_zkr = true; @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { DEFINE_PROP_BOOL("x-zvfbfmin", RISCVCPU, cfg.ext_zvfbfmin, false), DEFINE_PROP_BOOL("x-zvfbfwma", RISCVCPU, cfg.ext_zvfbfwma, false), + /* Vector cryptography extensions */ + DEFINE_PROP_BOOL("x-zvbc", RISCVCPU, cfg.ext_zvbc, false), + DEFINE_PROP_END_OF_LIST(), }; diff --git a/target/riscv/translate.c b/target/riscv/translate.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -XXX,XX +XXX,XX @@ static uint32_t opcode_at(DisasContextBase *dcbase, target_ulong pc) #include "insn_trans/trans_rvzfa.c.inc" #include "insn_trans/trans_rvzfh.c.inc" #include "insn_trans/trans_rvk.c.inc" +#include "insn_trans/trans_rvvk.c.inc" #include "insn_trans/trans_privileged.c.inc" #include "insn_trans/trans_svinval.c.inc" #include "insn_trans/trans_rvbf16.c.inc" diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c new file mode 100644 index XXXXXXX..XXXXXXX --- /dev/null +++ b/target/riscv/vcrypto_helper.c @@ -XXX,XX +XXX,XX @@ +/* + * RISC-V Vector Crypto Extension Helpers for QEMU. + * + * Copyright (C) 2023 SiFive, Inc. + * Written by Codethink Ltd and SiFive. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "qemu/osdep.h" +#include "qemu/host-utils.h" +#include "qemu/bitops.h" +#include "cpu.h" +#include "exec/memop.h" +#include "exec/exec-all.h" +#include "exec/helper-proto.h" +#include "internals.h" +#include "vector_internals.h" + +static uint64_t clmul64(uint64_t y, uint64_t x) +{ + uint64_t result = 0; + for (int j = 63; j >= 0; j--) { + if ((y >> j) & 1) { + result ^= (x << j); + } + } + return result; +} + +static uint64_t clmulh64(uint64_t y, uint64_t x) +{ + uint64_t result = 0; + for (int j = 63; j >= 1; j--) { + if ((y >> j) & 1) { + result ^= (x >> (64 - j)); + } + } + return result; +} + +RVVCALL(OPIVV2, vclmul_vv, OP_UUU_D, H8, H8, H8, clmul64) +GEN_VEXT_VV(vclmul_vv, 8) +RVVCALL(OPIVX2, vclmul_vx, OP_UUU_D, H8, H8, clmul64) +GEN_VEXT_VX(vclmul_vx, 8) +RVVCALL(OPIVV2, vclmulh_vv, OP_UUU_D, H8, H8, H8, clmulh64) +GEN_VEXT_VV(vclmulh_vv, 8) +RVVCALL(OPIVX2, vclmulh_vx, OP_UUU_D, H8, H8, clmulh64) +GEN_VEXT_VX(vclmulh_vx, 8) diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc new file mode 100644 index XXXXXXX..XXXXXXX --- /dev/null +++ b/target/riscv/insn_trans/trans_rvvk.c.inc @@ -XXX,XX +XXX,XX @@ +/* + * RISC-V translation routines for the vector crypto extension. + * + * Copyright (C) 2023 SiFive, Inc. + * Written by Codethink Ltd and SiFive. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* + * Zvbc + */ + +#define GEN_VV_MASKED_TRANS(NAME, CHECK) \ + static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ + { \ + if (CHECK(s, a)) { \ + return opivv_trans(a->rd, a->rs1, a->rs2, a->vm, \ + gen_helper_##NAME, s); \ + } \ + return false; \ + } + +static bool vclmul_vv_check(DisasContext *s, arg_rmrr *a) +{ + return opivv_check(s, a) && + s->cfg_ptr->ext_zvbc == true && + s->sew == MO_64; +} + +GEN_VV_MASKED_TRANS(vclmul_vv, vclmul_vv_check) +GEN_VV_MASKED_TRANS(vclmulh_vv, vclmul_vv_check) + +#define GEN_VX_MASKED_TRANS(NAME, CHECK) \ + static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ + { \ + if (CHECK(s, a)) { \ + return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, \ + gen_helper_##NAME, s); \ + } \ + return false; \ + } + +static bool vclmul_vx_check(DisasContext *s, arg_rmrr *a) +{ + return opivx_check(s, a) && + s->cfg_ptr->ext_zvbc == true && + s->sew == MO_64; +} + +GEN_VX_MASKED_TRANS(vclmul_vx, vclmul_vx_check) +GEN_VX_MASKED_TRANS(vclmulh_vx, vclmul_vx_check) diff --git a/target/riscv/meson.build b/target/riscv/meson.build index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/meson.build +++ b/target/riscv/meson.build @@ -XXX,XX +XXX,XX @@ riscv_ss.add(files( 'translate.c', 'm128_helper.c', 'crypto_helper.c', - 'zce_helper.c' + 'zce_helper.c', + 'vcrypto_helper.c' )) riscv_ss.add(when: 'CONFIG_KVM', if_true: files('kvm.c'), if_false: files('kvm-stub.c')) -- 2.41.0 From: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Move the checks out of `do_opiv{v,x,i}_gvec{,_shift}` functions and into the corresponding macros. This enables the functions to be reused in proceeding commits without check duplication. Signed-off-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Max Chou <max.chou@sifive.com> Message-ID: <20230711165917.2629866-6-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/insn_trans/trans_rvv.c.inc | 28 +++++++++++-------------- 1 file changed, 12 insertions(+), 16 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -XXX,XX +XXX,XX @@ do_opivv_gvec(DisasContext *s, arg_rmrr *a, GVecGen3Fn *gvec_fn, gen_helper_gvec_4_ptr *fn) { TCGLabel *over = gen_new_label(); - if (!opivv_check(s, a)) { - return false; - } tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ gen_helper_##NAME##_b, gen_helper_##NAME##_h, \ gen_helper_##NAME##_w, gen_helper_##NAME##_d, \ }; \ + if (!opivv_check(s, a)) { \ + return false; \ + } \ return do_opivv_gvec(s, a, tcg_gen_gvec_##SUF, fns[s->sew]); \ } @@ -XXX,XX +XXX,XX @@ static inline bool do_opivx_gvec(DisasContext *s, arg_rmrr *a, GVecGen2sFn *gvec_fn, gen_helper_opivx *fn) { - if (!opivx_check(s, a)) { - return false; - } - if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) { TCGv_i64 src1 = tcg_temp_new_i64(); @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ gen_helper_##NAME##_b, gen_helper_##NAME##_h, \ gen_helper_##NAME##_w, gen_helper_##NAME##_d, \ }; \ + if (!opivx_check(s, a)) { \ + return false; \ + } \ return do_opivx_gvec(s, a, tcg_gen_gvec_##SUF, fns[s->sew]); \ } @@ -XXX,XX +XXX,XX @@ static inline bool do_opivi_gvec(DisasContext *s, arg_rmrr *a, GVecGen2iFn *gvec_fn, gen_helper_opivx *fn, imm_mode_t imm_mode) { - if (!opivx_check(s, a)) { - return false; - } - if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) { gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), extract_imm(s, a->rs1, imm_mode), MAXSZ(s), MAXSZ(s)); @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ gen_helper_##OPIVX##_b, gen_helper_##OPIVX##_h, \ gen_helper_##OPIVX##_w, gen_helper_##OPIVX##_d, \ }; \ + if (!opivx_check(s, a)) { \ + return false; \ + } \ return do_opivi_gvec(s, a, tcg_gen_gvec_##SUF, \ fns[s->sew], IMM_MODE); \ } @@ -XXX,XX +XXX,XX @@ static inline bool do_opivx_gvec_shift(DisasContext *s, arg_rmrr *a, GVecGen2sFn32 *gvec_fn, gen_helper_opivx *fn) { - if (!opivx_check(s, a)) { - return false; - } - if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) { TCGv_i32 src1 = tcg_temp_new_i32(); @@ -XXX,XX +XXX,XX @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ gen_helper_##NAME##_b, gen_helper_##NAME##_h, \ gen_helper_##NAME##_w, gen_helper_##NAME##_d, \ }; \ - \ + if (!opivx_check(s, a)) { \ + return false; \ + } \ return do_opivx_gvec_shift(s, a, tcg_gen_gvec_##SUF, fns[s->sew]); \ } -- 2.41.0 From: Dickon Hood <dickon.hood@codethink.co.uk> Zvbb (implemented in later commit) has a widening instruction, which requires an extra check on the enabled extensions. Refactor GEN_OPIVX_WIDEN_TRANS() to take a check function to avoid reimplementing it. Signed-off-by: Dickon Hood <dickon.hood@codethink.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Max Chou <max.chou@sifive.com> Message-ID: <20230711165917.2629866-7-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/insn_trans/trans_rvv.c.inc | 52 +++++++++++-------------- 1 file changed, 23 insertions(+), 29 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -XXX,XX +XXX,XX @@ static bool opivx_widen_check(DisasContext *s, arg_rmrr *a) vext_check_ds(s, a->rd, a->rs2, a->vm); } -static bool do_opivx_widen(DisasContext *s, arg_rmrr *a, - gen_helper_opivx *fn) -{ - if (opivx_widen_check(s, a)) { - return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s); - } - return false; -} - -#define GEN_OPIVX_WIDEN_TRANS(NAME) \ -static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ -{ \ - static gen_helper_opivx * const fns[3] = { \ - gen_helper_##NAME##_b, \ - gen_helper_##NAME##_h, \ - gen_helper_##NAME##_w \ - }; \ - return do_opivx_widen(s, a, fns[s->sew]); \ +#define GEN_OPIVX_WIDEN_TRANS(NAME, CHECK) \ +static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ +{ \ + if (CHECK(s, a)) { \ + static gen_helper_opivx * const fns[3] = { \ + gen_helper_##NAME##_b, \ + gen_helper_##NAME##_h, \ + gen_helper_##NAME##_w \ + }; \ + return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fns[s->sew], s); \ + } \ + return false; \ } -GEN_OPIVX_WIDEN_TRANS(vwaddu_vx) -GEN_OPIVX_WIDEN_TRANS(vwadd_vx) -GEN_OPIVX_WIDEN_TRANS(vwsubu_vx) -GEN_OPIVX_WIDEN_TRANS(vwsub_vx) +GEN_OPIVX_WIDEN_TRANS(vwaddu_vx, opivx_widen_check) +GEN_OPIVX_WIDEN_TRANS(vwadd_vx, opivx_widen_check) +GEN_OPIVX_WIDEN_TRANS(vwsubu_vx, opivx_widen_check) +GEN_OPIVX_WIDEN_TRANS(vwsub_vx, opivx_widen_check) /* WIDEN OPIVV with WIDEN */ static bool opiwv_widen_check(DisasContext *s, arg_rmrr *a) @@ -XXX,XX +XXX,XX @@ GEN_OPIVX_TRANS(vrem_vx, opivx_check) GEN_OPIVV_WIDEN_TRANS(vwmul_vv, opivv_widen_check) GEN_OPIVV_WIDEN_TRANS(vwmulu_vv, opivv_widen_check) GEN_OPIVV_WIDEN_TRANS(vwmulsu_vv, opivv_widen_check) -GEN_OPIVX_WIDEN_TRANS(vwmul_vx) -GEN_OPIVX_WIDEN_TRANS(vwmulu_vx) -GEN_OPIVX_WIDEN_TRANS(vwmulsu_vx) +GEN_OPIVX_WIDEN_TRANS(vwmul_vx, opivx_widen_check) +GEN_OPIVX_WIDEN_TRANS(vwmulu_vx, opivx_widen_check) +GEN_OPIVX_WIDEN_TRANS(vwmulsu_vx, opivx_widen_check) /* Vector Single-Width Integer Multiply-Add Instructions */ GEN_OPIVV_TRANS(vmacc_vv, opivv_check) @@ -XXX,XX +XXX,XX @@ GEN_OPIVX_TRANS(vnmsub_vx, opivx_check) GEN_OPIVV_WIDEN_TRANS(vwmaccu_vv, opivv_widen_check) GEN_OPIVV_WIDEN_TRANS(vwmacc_vv, opivv_widen_check) GEN_OPIVV_WIDEN_TRANS(vwmaccsu_vv, opivv_widen_check) -GEN_OPIVX_WIDEN_TRANS(vwmaccu_vx) -GEN_OPIVX_WIDEN_TRANS(vwmacc_vx) -GEN_OPIVX_WIDEN_TRANS(vwmaccsu_vx) -GEN_OPIVX_WIDEN_TRANS(vwmaccus_vx) +GEN_OPIVX_WIDEN_TRANS(vwmaccu_vx, opivx_widen_check) +GEN_OPIVX_WIDEN_TRANS(vwmacc_vx, opivx_widen_check) +GEN_OPIVX_WIDEN_TRANS(vwmaccsu_vx, opivx_widen_check) +GEN_OPIVX_WIDEN_TRANS(vwmaccus_vx, opivx_widen_check) /* Vector Integer Merge and Move Instructions */ static bool trans_vmv_v_v(DisasContext *s, arg_vmv_v_v *a) -- 2.41.0 From: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> Move some macros out of `vector_helper` and into `vector_internals`. This ensures they can be used by both vector and vector-crypto helpers (latter implemented in proceeding commits). Signed-off-by: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Max Chou <max.chou@sifive.com> Message-ID: <20230711165917.2629866-8-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/vector_internals.h | 46 +++++++++++++++++++++++++++++++++ target/riscv/vector_helper.c | 42 ------------------------------ 2 files changed, 46 insertions(+), 42 deletions(-) diff --git a/target/riscv/vector_internals.h b/target/riscv/vector_internals.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vector_internals.h +++ b/target/riscv/vector_internals.h @@ -XXX,XX +XXX,XX @@ void vext_set_elems_1s(void *base, uint32_t is_agnostic, uint32_t cnt, /* expand macro args before macro */ #define RVVCALL(macro, ...) macro(__VA_ARGS__) +/* (TD, T2, TX2) */ +#define OP_UU_B uint8_t, uint8_t, uint8_t +#define OP_UU_H uint16_t, uint16_t, uint16_t +#define OP_UU_W uint32_t, uint32_t, uint32_t +#define OP_UU_D uint64_t, uint64_t, uint64_t + /* (TD, T1, T2, TX1, TX2) */ #define OP_UUU_B uint8_t, uint8_t, uint8_t, uint8_t, uint8_t #define OP_UUU_H uint16_t, uint16_t, uint16_t, uint16_t, uint16_t #define OP_UUU_W uint32_t, uint32_t, uint32_t, uint32_t, uint32_t #define OP_UUU_D uint64_t, uint64_t, uint64_t, uint64_t, uint64_t +#define OPIVV1(NAME, TD, T2, TX2, HD, HS2, OP) \ +static void do_##NAME(void *vd, void *vs2, int i) \ +{ \ + TX2 s2 = *((T2 *)vs2 + HS2(i)); \ + *((TD *)vd + HD(i)) = OP(s2); \ +} + +#define GEN_VEXT_V(NAME, ESZ) \ +void HELPER(NAME)(void *vd, void *v0, void *vs2, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + uint32_t vm = vext_vm(desc); \ + uint32_t vl = env->vl; \ + uint32_t total_elems = \ + vext_get_total_elems(env, desc, ESZ); \ + uint32_t vta = vext_vta(desc); \ + uint32_t vma = vext_vma(desc); \ + uint32_t i; \ + \ + for (i = env->vstart; i < vl; i++) { \ + if (!vm && !vext_elem_mask(v0, i)) { \ + /* set masked-off elements to 1s */ \ + vext_set_elems_1s(vd, vma, i * ESZ, \ + (i + 1) * ESZ); \ + continue; \ + } \ + do_##NAME(vd, vs2, i); \ + } \ + env->vstart = 0; \ + /* set tail elements to 1s */ \ + vext_set_elems_1s(vd, vta, vl * ESZ, \ + total_elems * ESZ); \ +} + /* operation of two vector elements */ typedef void opivv2_fn(void *vd, void *vs1, void *vs2, int i); @@ -XXX,XX +XXX,XX @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ do_##NAME, ESZ); \ } +/* Three of the widening shortening macros: */ +/* (TD, T1, T2, TX1, TX2) */ +#define WOP_UUU_B uint16_t, uint8_t, uint8_t, uint16_t, uint16_t +#define WOP_UUU_H uint32_t, uint16_t, uint16_t, uint32_t, uint32_t +#define WOP_UUU_W uint64_t, uint32_t, uint32_t, uint64_t, uint64_t + #endif /* TARGET_RISCV_VECTOR_INTERNALS_H */ diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -XXX,XX +XXX,XX @@ GEN_VEXT_ST_WHOLE(vs8r_v, int8_t, ste_b) #define OP_SUS_H int16_t, uint16_t, int16_t, uint16_t, int16_t #define OP_SUS_W int32_t, uint32_t, int32_t, uint32_t, int32_t #define OP_SUS_D int64_t, uint64_t, int64_t, uint64_t, int64_t -#define WOP_UUU_B uint16_t, uint8_t, uint8_t, uint16_t, uint16_t -#define WOP_UUU_H uint32_t, uint16_t, uint16_t, uint32_t, uint32_t -#define WOP_UUU_W uint64_t, uint32_t, uint32_t, uint64_t, uint64_t #define WOP_SSS_B int16_t, int8_t, int8_t, int16_t, int16_t #define WOP_SSS_H int32_t, int16_t, int16_t, int32_t, int32_t #define WOP_SSS_W int64_t, int32_t, int32_t, int64_t, int64_t @@ -XXX,XX +XXX,XX @@ GEN_VEXT_VF(vfwnmsac_vf_h, 4) GEN_VEXT_VF(vfwnmsac_vf_w, 8) /* Vector Floating-Point Square-Root Instruction */ -/* (TD, T2, TX2) */ -#define OP_UU_H uint16_t, uint16_t, uint16_t -#define OP_UU_W uint32_t, uint32_t, uint32_t -#define OP_UU_D uint64_t, uint64_t, uint64_t - #define OPFVV1(NAME, TD, T2, TX2, HD, HS2, OP) \ static void do_##NAME(void *vd, void *vs2, int i, \ CPURISCVState *env) \ @@ -XXX,XX +XXX,XX @@ GEN_VEXT_CMP_VF(vmfge_vf_w, uint32_t, H4, vmfge32) GEN_VEXT_CMP_VF(vmfge_vf_d, uint64_t, H8, vmfge64) /* Vector Floating-Point Classify Instruction */ -#define OPIVV1(NAME, TD, T2, TX2, HD, HS2, OP) \ -static void do_##NAME(void *vd, void *vs2, int i) \ -{ \ - TX2 s2 = *((T2 *)vs2 + HS2(i)); \ - *((TD *)vd + HD(i)) = OP(s2); \ -} - -#define GEN_VEXT_V(NAME, ESZ) \ -void HELPER(NAME)(void *vd, void *v0, void *vs2, \ - CPURISCVState *env, uint32_t desc) \ -{ \ - uint32_t vm = vext_vm(desc); \ - uint32_t vl = env->vl; \ - uint32_t total_elems = \ - vext_get_total_elems(env, desc, ESZ); \ - uint32_t vta = vext_vta(desc); \ - uint32_t vma = vext_vma(desc); \ - uint32_t i; \ - \ - for (i = env->vstart; i < vl; i++) { \ - if (!vm && !vext_elem_mask(v0, i)) { \ - /* set masked-off elements to 1s */ \ - vext_set_elems_1s(vd, vma, i * ESZ, \ - (i + 1) * ESZ); \ - continue; \ - } \ - do_##NAME(vd, vs2, i); \ - } \ - env->vstart = 0; \ - /* set tail elements to 1s */ \ - vext_set_elems_1s(vd, vta, vl * ESZ, \ - total_elems * ESZ); \ -} - target_ulong fclass_h(uint64_t frs1) { float16 f = frs1; -- 2.41.0 From: Dickon Hood <dickon.hood@codethink.co.uk> This commit adds support for the Zvbb vector-crypto extension, which consists of the following instructions: * vrol.[vv,vx] * vror.[vv,vx,vi] * vbrev8.v * vrev8.v * vandn.[vv,vx] * vbrev.v * vclz.v * vctz.v * vcpop.v * vwsll.[vv,vx,vi] Translation functions are defined in `target/riscv/insn_trans/trans_rvvk.c.inc` and helpers are defined in `target/riscv/vcrypto_helper.c`. Co-authored-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Co-authored-by: William Salmon <will.salmon@codethink.co.uk> Co-authored-by: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> [max.chou@sifive.com: Fix imm mode of vror.vi] Signed-off-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Signed-off-by: William Salmon <will.salmon@codethink.co.uk> Signed-off-by: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> Signed-off-by: Dickon Hood <dickon.hood@codethink.co.uk> Signed-off-by: Max Chou <max.chou@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> [max.chou@sifive.com: Exposed x-zvbb property] Message-ID: <20230711165917.2629866-9-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu_cfg.h | 1 + target/riscv/helper.h | 62 +++++++++ target/riscv/insn32.decode | 20 +++ target/riscv/cpu.c | 12 ++ target/riscv/vcrypto_helper.c | 138 +++++++++++++++++++ target/riscv/insn_trans/trans_rvvk.c.inc | 164 +++++++++++++++++++++++ 6 files changed, 397 insertions(+) diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -XXX,XX +XXX,XX @@ struct RISCVCPUConfig { bool ext_zve32f; bool ext_zve64f; bool ext_zve64d; + bool ext_zvbb; bool ext_zvbc; bool ext_zmmul; bool ext_zvfbfmin; diff --git a/target/riscv/helper.h b/target/riscv/helper.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -XXX,XX +XXX,XX @@ DEF_HELPER_6(vclmul_vv, void, ptr, ptr, ptr, ptr, env, i32) DEF_HELPER_6(vclmul_vx, void, ptr, ptr, tl, ptr, env, i32) DEF_HELPER_6(vclmulh_vv, void, ptr, ptr, ptr, ptr, env, i32) DEF_HELPER_6(vclmulh_vx, void, ptr, ptr, tl, ptr, env, i32) + +DEF_HELPER_6(vror_vv_b, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vror_vv_h, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vror_vv_w, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vror_vv_d, void, ptr, ptr, ptr, ptr, env, i32) + +DEF_HELPER_6(vror_vx_b, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vror_vx_h, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vror_vx_w, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vror_vx_d, void, ptr, ptr, tl, ptr, env, i32) + +DEF_HELPER_6(vrol_vv_b, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vrol_vv_h, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vrol_vv_w, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vrol_vv_d, void, ptr, ptr, ptr, ptr, env, i32) + +DEF_HELPER_6(vrol_vx_b, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vrol_vx_h, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vrol_vx_w, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vrol_vx_d, void, ptr, ptr, tl, ptr, env, i32) + +DEF_HELPER_5(vrev8_v_b, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vrev8_v_h, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vrev8_v_w, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vrev8_v_d, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vbrev8_v_b, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vbrev8_v_h, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vbrev8_v_w, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vbrev8_v_d, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vbrev_v_b, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vbrev_v_h, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vbrev_v_w, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vbrev_v_d, void, ptr, ptr, ptr, env, i32) + +DEF_HELPER_5(vclz_v_b, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vclz_v_h, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vclz_v_w, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vclz_v_d, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vctz_v_b, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vctz_v_h, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vctz_v_w, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vctz_v_d, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vcpop_v_b, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vcpop_v_h, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vcpop_v_w, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vcpop_v_d, void, ptr, ptr, ptr, env, i32) + +DEF_HELPER_6(vwsll_vv_b, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vwsll_vv_h, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vwsll_vv_w, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vwsll_vx_b, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vwsll_vx_h, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vwsll_vx_w, void, ptr, ptr, tl, ptr, env, i32) + +DEF_HELPER_6(vandn_vv_b, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vandn_vv_h, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vandn_vv_w, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vandn_vv_d, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_6(vandn_vx_b, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vandn_vx_h, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vandn_vx_w, void, ptr, ptr, tl, ptr, env, i32) +DEF_HELPER_6(vandn_vx_d, void, ptr, ptr, tl, ptr, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -XXX,XX +XXX,XX @@ %imm_u 12:s20 !function=ex_shift_12 %imm_bs 30:2 !function=ex_shift_3 %imm_rnum 20:4 +%imm_z6 26:1 15:5 # Argument sets: &empty @@ -XXX,XX +XXX,XX @@ @r_vm ...... vm:1 ..... ..... ... ..... ....... &rmrr %rs2 %rs1 %rd @r_vm_1 ...... . ..... ..... ... ..... ....... &rmrr vm=1 %rs2 %rs1 %rd @r_vm_0 ...... . ..... ..... ... ..... ....... &rmrr vm=0 %rs2 %rs1 %rd +@r2_zimm6 ..... . vm:1 ..... ..... ... ..... ....... &rmrr %rs2 rs1=%imm_z6 %rd @r2_zimm11 . zimm:11 ..... ... ..... ....... %rs1 %rd @r2_zimm10 .. zimm:10 ..... ... ..... ....... %rs1 %rd @r2_s ....... ..... ..... ... ..... ....... %rs2 %rs1 @@ -XXX,XX +XXX,XX @@ vclmul_vv 001100 . ..... ..... 010 ..... 1010111 @r_vm vclmul_vx 001100 . ..... ..... 110 ..... 1010111 @r_vm vclmulh_vv 001101 . ..... ..... 010 ..... 1010111 @r_vm vclmulh_vx 001101 . ..... ..... 110 ..... 1010111 @r_vm + +# *** Zvbb vector crypto extension *** +vrol_vv 010101 . ..... ..... 000 ..... 1010111 @r_vm +vrol_vx 010101 . ..... ..... 100 ..... 1010111 @r_vm +vror_vv 010100 . ..... ..... 000 ..... 1010111 @r_vm +vror_vx 010100 . ..... ..... 100 ..... 1010111 @r_vm +vror_vi 01010. . ..... ..... 011 ..... 1010111 @r2_zimm6 +vbrev8_v 010010 . ..... 01000 010 ..... 1010111 @r2_vm +vrev8_v 010010 . ..... 01001 010 ..... 1010111 @r2_vm +vandn_vv 000001 . ..... ..... 000 ..... 1010111 @r_vm +vandn_vx 000001 . ..... ..... 100 ..... 1010111 @r_vm +vbrev_v 010010 . ..... 01010 010 ..... 1010111 @r2_vm +vclz_v 010010 . ..... 01100 010 ..... 1010111 @r2_vm +vctz_v 010010 . ..... 01101 010 ..... 1010111 @r2_vm +vcpop_v 010010 . ..... 01110 010 ..... 1010111 @r2_vm +vwsll_vv 110101 . ..... ..... 000 ..... 1010111 @r_vm +vwsll_vx 110101 . ..... ..... 100 ..... 1010111 @r_vm +vwsll_vi 110101 . ..... ..... 011 ..... 1010111 @r_vm diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zksed, PRIV_VERSION_1_12_0, ext_zksed), ISA_EXT_DATA_ENTRY(zksh, PRIV_VERSION_1_12_0, ext_zksh), ISA_EXT_DATA_ENTRY(zkt, PRIV_VERSION_1_12_0, ext_zkt), + ISA_EXT_DATA_ENTRY(zvbb, PRIV_VERSION_1_12_0, ext_zvbb), ISA_EXT_DATA_ENTRY(zvbc, PRIV_VERSION_1_12_0, ext_zvbc), ISA_EXT_DATA_ENTRY(zve32f, PRIV_VERSION_1_10_0, ext_zve32f), ISA_EXT_DATA_ENTRY(zve64f, PRIV_VERSION_1_10_0, ext_zve64f), @@ -XXX,XX +XXX,XX @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp) return; } + /* + * In principle Zve*x would also suffice here, were they supported + * in qemu + */ + if (cpu->cfg.ext_zvbb && !cpu->cfg.ext_zve32f) { + error_setg(errp, + "Vector crypto extensions require V or Zve* extensions"); + return; + } + if (cpu->cfg.ext_zvbc && !cpu->cfg.ext_zve64f) { error_setg(errp, "Zvbc extension requires V or Zve64{f,d} extensions"); return; @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { DEFINE_PROP_BOOL("x-zvfbfwma", RISCVCPU, cfg.ext_zvfbfwma, false), /* Vector cryptography extensions */ + DEFINE_PROP_BOOL("x-zvbb", RISCVCPU, cfg.ext_zvbb, false), DEFINE_PROP_BOOL("x-zvbc", RISCVCPU, cfg.ext_zvbc, false), DEFINE_PROP_END_OF_LIST(), diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vcrypto_helper.c +++ b/target/riscv/vcrypto_helper.c @@ -XXX,XX +XXX,XX @@ #include "qemu/osdep.h" #include "qemu/host-utils.h" #include "qemu/bitops.h" +#include "qemu/bswap.h" #include "cpu.h" #include "exec/memop.h" #include "exec/exec-all.h" @@ -XXX,XX +XXX,XX @@ RVVCALL(OPIVV2, vclmulh_vv, OP_UUU_D, H8, H8, H8, clmulh64) GEN_VEXT_VV(vclmulh_vv, 8) RVVCALL(OPIVX2, vclmulh_vx, OP_UUU_D, H8, H8, clmulh64) GEN_VEXT_VX(vclmulh_vx, 8) + +RVVCALL(OPIVV2, vror_vv_b, OP_UUU_B, H1, H1, H1, ror8) +RVVCALL(OPIVV2, vror_vv_h, OP_UUU_H, H2, H2, H2, ror16) +RVVCALL(OPIVV2, vror_vv_w, OP_UUU_W, H4, H4, H4, ror32) +RVVCALL(OPIVV2, vror_vv_d, OP_UUU_D, H8, H8, H8, ror64) +GEN_VEXT_VV(vror_vv_b, 1) +GEN_VEXT_VV(vror_vv_h, 2) +GEN_VEXT_VV(vror_vv_w, 4) +GEN_VEXT_VV(vror_vv_d, 8) + +RVVCALL(OPIVX2, vror_vx_b, OP_UUU_B, H1, H1, ror8) +RVVCALL(OPIVX2, vror_vx_h, OP_UUU_H, H2, H2, ror16) +RVVCALL(OPIVX2, vror_vx_w, OP_UUU_W, H4, H4, ror32) +RVVCALL(OPIVX2, vror_vx_d, OP_UUU_D, H8, H8, ror64) +GEN_VEXT_VX(vror_vx_b, 1) +GEN_VEXT_VX(vror_vx_h, 2) +GEN_VEXT_VX(vror_vx_w, 4) +GEN_VEXT_VX(vror_vx_d, 8) + +RVVCALL(OPIVV2, vrol_vv_b, OP_UUU_B, H1, H1, H1, rol8) +RVVCALL(OPIVV2, vrol_vv_h, OP_UUU_H, H2, H2, H2, rol16) +RVVCALL(OPIVV2, vrol_vv_w, OP_UUU_W, H4, H4, H4, rol32) +RVVCALL(OPIVV2, vrol_vv_d, OP_UUU_D, H8, H8, H8, rol64) +GEN_VEXT_VV(vrol_vv_b, 1) +GEN_VEXT_VV(vrol_vv_h, 2) +GEN_VEXT_VV(vrol_vv_w, 4) +GEN_VEXT_VV(vrol_vv_d, 8) + +RVVCALL(OPIVX2, vrol_vx_b, OP_UUU_B, H1, H1, rol8) +RVVCALL(OPIVX2, vrol_vx_h, OP_UUU_H, H2, H2, rol16) +RVVCALL(OPIVX2, vrol_vx_w, OP_UUU_W, H4, H4, rol32) +RVVCALL(OPIVX2, vrol_vx_d, OP_UUU_D, H8, H8, rol64) +GEN_VEXT_VX(vrol_vx_b, 1) +GEN_VEXT_VX(vrol_vx_h, 2) +GEN_VEXT_VX(vrol_vx_w, 4) +GEN_VEXT_VX(vrol_vx_d, 8) + +static uint64_t brev8(uint64_t val) +{ + val = ((val & 0x5555555555555555ull) << 1) | + ((val & 0xAAAAAAAAAAAAAAAAull) >> 1); + val = ((val & 0x3333333333333333ull) << 2) | + ((val & 0xCCCCCCCCCCCCCCCCull) >> 2); + val = ((val & 0x0F0F0F0F0F0F0F0Full) << 4) | + ((val & 0xF0F0F0F0F0F0F0F0ull) >> 4); + + return val; +} + +RVVCALL(OPIVV1, vbrev8_v_b, OP_UU_B, H1, H1, brev8) +RVVCALL(OPIVV1, vbrev8_v_h, OP_UU_H, H2, H2, brev8) +RVVCALL(OPIVV1, vbrev8_v_w, OP_UU_W, H4, H4, brev8) +RVVCALL(OPIVV1, vbrev8_v_d, OP_UU_D, H8, H8, brev8) +GEN_VEXT_V(vbrev8_v_b, 1) +GEN_VEXT_V(vbrev8_v_h, 2) +GEN_VEXT_V(vbrev8_v_w, 4) +GEN_VEXT_V(vbrev8_v_d, 8) + +#define DO_IDENTITY(a) (a) +RVVCALL(OPIVV1, vrev8_v_b, OP_UU_B, H1, H1, DO_IDENTITY) +RVVCALL(OPIVV1, vrev8_v_h, OP_UU_H, H2, H2, bswap16) +RVVCALL(OPIVV1, vrev8_v_w, OP_UU_W, H4, H4, bswap32) +RVVCALL(OPIVV1, vrev8_v_d, OP_UU_D, H8, H8, bswap64) +GEN_VEXT_V(vrev8_v_b, 1) +GEN_VEXT_V(vrev8_v_h, 2) +GEN_VEXT_V(vrev8_v_w, 4) +GEN_VEXT_V(vrev8_v_d, 8) + +#define DO_ANDN(a, b) ((a) & ~(b)) +RVVCALL(OPIVV2, vandn_vv_b, OP_UUU_B, H1, H1, H1, DO_ANDN) +RVVCALL(OPIVV2, vandn_vv_h, OP_UUU_H, H2, H2, H2, DO_ANDN) +RVVCALL(OPIVV2, vandn_vv_w, OP_UUU_W, H4, H4, H4, DO_ANDN) +RVVCALL(OPIVV2, vandn_vv_d, OP_UUU_D, H8, H8, H8, DO_ANDN) +GEN_VEXT_VV(vandn_vv_b, 1) +GEN_VEXT_VV(vandn_vv_h, 2) +GEN_VEXT_VV(vandn_vv_w, 4) +GEN_VEXT_VV(vandn_vv_d, 8) + +RVVCALL(OPIVX2, vandn_vx_b, OP_UUU_B, H1, H1, DO_ANDN) +RVVCALL(OPIVX2, vandn_vx_h, OP_UUU_H, H2, H2, DO_ANDN) +RVVCALL(OPIVX2, vandn_vx_w, OP_UUU_W, H4, H4, DO_ANDN) +RVVCALL(OPIVX2, vandn_vx_d, OP_UUU_D, H8, H8, DO_ANDN) +GEN_VEXT_VX(vandn_vx_b, 1) +GEN_VEXT_VX(vandn_vx_h, 2) +GEN_VEXT_VX(vandn_vx_w, 4) +GEN_VEXT_VX(vandn_vx_d, 8) + +RVVCALL(OPIVV1, vbrev_v_b, OP_UU_B, H1, H1, revbit8) +RVVCALL(OPIVV1, vbrev_v_h, OP_UU_H, H2, H2, revbit16) +RVVCALL(OPIVV1, vbrev_v_w, OP_UU_W, H4, H4, revbit32) +RVVCALL(OPIVV1, vbrev_v_d, OP_UU_D, H8, H8, revbit64) +GEN_VEXT_V(vbrev_v_b, 1) +GEN_VEXT_V(vbrev_v_h, 2) +GEN_VEXT_V(vbrev_v_w, 4) +GEN_VEXT_V(vbrev_v_d, 8) + +RVVCALL(OPIVV1, vclz_v_b, OP_UU_B, H1, H1, clz8) +RVVCALL(OPIVV1, vclz_v_h, OP_UU_H, H2, H2, clz16) +RVVCALL(OPIVV1, vclz_v_w, OP_UU_W, H4, H4, clz32) +RVVCALL(OPIVV1, vclz_v_d, OP_UU_D, H8, H8, clz64) +GEN_VEXT_V(vclz_v_b, 1) +GEN_VEXT_V(vclz_v_h, 2) +GEN_VEXT_V(vclz_v_w, 4) +GEN_VEXT_V(vclz_v_d, 8) + +RVVCALL(OPIVV1, vctz_v_b, OP_UU_B, H1, H1, ctz8) +RVVCALL(OPIVV1, vctz_v_h, OP_UU_H, H2, H2, ctz16) +RVVCALL(OPIVV1, vctz_v_w, OP_UU_W, H4, H4, ctz32) +RVVCALL(OPIVV1, vctz_v_d, OP_UU_D, H8, H8, ctz64) +GEN_VEXT_V(vctz_v_b, 1) +GEN_VEXT_V(vctz_v_h, 2) +GEN_VEXT_V(vctz_v_w, 4) +GEN_VEXT_V(vctz_v_d, 8) + +RVVCALL(OPIVV1, vcpop_v_b, OP_UU_B, H1, H1, ctpop8) +RVVCALL(OPIVV1, vcpop_v_h, OP_UU_H, H2, H2, ctpop16) +RVVCALL(OPIVV1, vcpop_v_w, OP_UU_W, H4, H4, ctpop32) +RVVCALL(OPIVV1, vcpop_v_d, OP_UU_D, H8, H8, ctpop64) +GEN_VEXT_V(vcpop_v_b, 1) +GEN_VEXT_V(vcpop_v_h, 2) +GEN_VEXT_V(vcpop_v_w, 4) +GEN_VEXT_V(vcpop_v_d, 8) + +#define DO_SLL(N, M) (N << (M & (sizeof(N) * 8 - 1))) +RVVCALL(OPIVV2, vwsll_vv_b, WOP_UUU_B, H2, H1, H1, DO_SLL) +RVVCALL(OPIVV2, vwsll_vv_h, WOP_UUU_H, H4, H2, H2, DO_SLL) +RVVCALL(OPIVV2, vwsll_vv_w, WOP_UUU_W, H8, H4, H4, DO_SLL) +GEN_VEXT_VV(vwsll_vv_b, 2) +GEN_VEXT_VV(vwsll_vv_h, 4) +GEN_VEXT_VV(vwsll_vv_w, 8) + +RVVCALL(OPIVX2, vwsll_vx_b, WOP_UUU_B, H2, H1, DO_SLL) +RVVCALL(OPIVX2, vwsll_vx_h, WOP_UUU_H, H4, H2, DO_SLL) +RVVCALL(OPIVX2, vwsll_vx_w, WOP_UUU_W, H8, H4, DO_SLL) +GEN_VEXT_VX(vwsll_vx_b, 2) +GEN_VEXT_VX(vwsll_vx_h, 4) +GEN_VEXT_VX(vwsll_vx_w, 8) diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvvk.c.inc +++ b/target/riscv/insn_trans/trans_rvvk.c.inc @@ -XXX,XX +XXX,XX @@ static bool vclmul_vx_check(DisasContext *s, arg_rmrr *a) GEN_VX_MASKED_TRANS(vclmul_vx, vclmul_vx_check) GEN_VX_MASKED_TRANS(vclmulh_vx, vclmul_vx_check) + +/* + * Zvbb + */ + +#define GEN_OPIVI_GVEC_TRANS_CHECK(NAME, IMM_MODE, OPIVX, SUF, CHECK) \ + static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ + { \ + if (CHECK(s, a)) { \ + static gen_helper_opivx *const fns[4] = { \ + gen_helper_##OPIVX##_b, \ + gen_helper_##OPIVX##_h, \ + gen_helper_##OPIVX##_w, \ + gen_helper_##OPIVX##_d, \ + }; \ + return do_opivi_gvec(s, a, tcg_gen_gvec_##SUF, fns[s->sew], \ + IMM_MODE); \ + } \ + return false; \ + } + +#define GEN_OPIVV_GVEC_TRANS_CHECK(NAME, SUF, CHECK) \ + static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ + { \ + if (CHECK(s, a)) { \ + static gen_helper_gvec_4_ptr *const fns[4] = { \ + gen_helper_##NAME##_b, \ + gen_helper_##NAME##_h, \ + gen_helper_##NAME##_w, \ + gen_helper_##NAME##_d, \ + }; \ + return do_opivv_gvec(s, a, tcg_gen_gvec_##SUF, fns[s->sew]); \ + } \ + return false; \ + } + +#define GEN_OPIVX_GVEC_SHIFT_TRANS_CHECK(NAME, SUF, CHECK) \ + static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ + { \ + if (CHECK(s, a)) { \ + static gen_helper_opivx *const fns[4] = { \ + gen_helper_##NAME##_b, \ + gen_helper_##NAME##_h, \ + gen_helper_##NAME##_w, \ + gen_helper_##NAME##_d, \ + }; \ + return do_opivx_gvec_shift(s, a, tcg_gen_gvec_##SUF, \ + fns[s->sew]); \ + } \ + return false; \ + } + +static bool zvbb_vv_check(DisasContext *s, arg_rmrr *a) +{ + return opivv_check(s, a) && s->cfg_ptr->ext_zvbb == true; +} + +static bool zvbb_vx_check(DisasContext *s, arg_rmrr *a) +{ + return opivx_check(s, a) && s->cfg_ptr->ext_zvbb == true; +} + +/* vrol.v[vx] */ +GEN_OPIVV_GVEC_TRANS_CHECK(vrol_vv, rotlv, zvbb_vv_check) +GEN_OPIVX_GVEC_SHIFT_TRANS_CHECK(vrol_vx, rotls, zvbb_vx_check) + +/* vror.v[vxi] */ +GEN_OPIVV_GVEC_TRANS_CHECK(vror_vv, rotrv, zvbb_vv_check) +GEN_OPIVX_GVEC_SHIFT_TRANS_CHECK(vror_vx, rotrs, zvbb_vx_check) +GEN_OPIVI_GVEC_TRANS_CHECK(vror_vi, IMM_TRUNC_SEW, vror_vx, rotri, zvbb_vx_check) + +#define GEN_OPIVX_GVEC_TRANS_CHECK(NAME, SUF, CHECK) \ + static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ + { \ + if (CHECK(s, a)) { \ + static gen_helper_opivx *const fns[4] = { \ + gen_helper_##NAME##_b, \ + gen_helper_##NAME##_h, \ + gen_helper_##NAME##_w, \ + gen_helper_##NAME##_d, \ + }; \ + return do_opivx_gvec(s, a, tcg_gen_gvec_##SUF, fns[s->sew]); \ + } \ + return false; \ + } + +/* vandn.v[vx] */ +GEN_OPIVV_GVEC_TRANS_CHECK(vandn_vv, andc, zvbb_vv_check) +GEN_OPIVX_GVEC_TRANS_CHECK(vandn_vx, andcs, zvbb_vx_check) + +#define GEN_OPIV_TRANS(NAME, CHECK) \ + static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ + { \ + if (CHECK(s, a)) { \ + uint32_t data = 0; \ + static gen_helper_gvec_3_ptr *const fns[4] = { \ + gen_helper_##NAME##_b, \ + gen_helper_##NAME##_h, \ + gen_helper_##NAME##_w, \ + gen_helper_##NAME##_d, \ + }; \ + TCGLabel *over = gen_new_label(); \ + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ + \ + data = FIELD_DP32(data, VDATA, VM, a->vm); \ + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ + data = FIELD_DP32(data, VDATA, VTA, s->vta); \ + data = FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s); \ + data = FIELD_DP32(data, VDATA, VMA, s->vma); \ + tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), \ + vreg_ofs(s, a->rs2), cpu_env, \ + s->cfg_ptr->vlen / 8, s->cfg_ptr->vlen / 8, \ + data, fns[s->sew]); \ + mark_vs_dirty(s); \ + gen_set_label(over); \ + return true; \ + } \ + return false; \ + } + +static bool zvbb_opiv_check(DisasContext *s, arg_rmr *a) +{ + return s->cfg_ptr->ext_zvbb == true && + require_rvv(s) && + vext_check_isa_ill(s) && + vext_check_ss(s, a->rd, a->rs2, a->vm); +} + +GEN_OPIV_TRANS(vbrev8_v, zvbb_opiv_check) +GEN_OPIV_TRANS(vrev8_v, zvbb_opiv_check) +GEN_OPIV_TRANS(vbrev_v, zvbb_opiv_check) +GEN_OPIV_TRANS(vclz_v, zvbb_opiv_check) +GEN_OPIV_TRANS(vctz_v, zvbb_opiv_check) +GEN_OPIV_TRANS(vcpop_v, zvbb_opiv_check) + +static bool vwsll_vv_check(DisasContext *s, arg_rmrr *a) +{ + return s->cfg_ptr->ext_zvbb && opivv_widen_check(s, a); +} + +static bool vwsll_vx_check(DisasContext *s, arg_rmrr *a) +{ + return s->cfg_ptr->ext_zvbb && opivx_widen_check(s, a); +} + +/* OPIVI without GVEC IR */ +#define GEN_OPIVI_WIDEN_TRANS(NAME, IMM_MODE, OPIVX, CHECK) \ + static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ + { \ + if (CHECK(s, a)) { \ + static gen_helper_opivx *const fns[3] = { \ + gen_helper_##OPIVX##_b, \ + gen_helper_##OPIVX##_h, \ + gen_helper_##OPIVX##_w, \ + }; \ + return opivi_trans(a->rd, a->rs1, a->rs2, a->vm, fns[s->sew], s, \ + IMM_MODE); \ + } \ + return false; \ + } + +GEN_OPIVV_WIDEN_TRANS(vwsll_vv, vwsll_vv_check) +GEN_OPIVX_WIDEN_TRANS(vwsll_vx, vwsll_vx_check) +GEN_OPIVI_WIDEN_TRANS(vwsll_vi, IMM_ZX, vwsll_vx, vwsll_vx_check) -- 2.41.0 From: Nazar Kazakov <nazar.kazakov@codethink.co.uk> This commit adds support for the Zvkned vector-crypto extension, which consists of the following instructions: * vaesef.[vv,vs] * vaesdf.[vv,vs] * vaesdm.[vv,vs] * vaesz.vs * vaesem.[vv,vs] * vaeskf1.vi * vaeskf2.vi Translation functions are defined in `target/riscv/insn_trans/trans_rvvk.c.inc` and helpers are defined in `target/riscv/vcrypto_helper.c`. Co-authored-by: Lawrence Hunter <lawrence.hunter@codethink.co.uk> Co-authored-by: William Salmon <will.salmon@codethink.co.uk> [max.chou@sifive.com: Replaced vstart checking by TCG op] Signed-off-by: Lawrence Hunter <lawrence.hunter@codethink.co.uk> Signed-off-by: William Salmon <will.salmon@codethink.co.uk> Signed-off-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Signed-off-by: Max Chou <max.chou@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> [max.chou@sifive.com: Imported aes-round.h and exposed x-zvkned property] [max.chou@sifive.com: Fixed endian issues and replaced the vstart & vl egs checking by helper function] [max.chou@sifive.com: Replaced bswap32 calls in aes key expanding] Message-ID: <20230711165917.2629866-10-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu_cfg.h | 1 + target/riscv/helper.h | 14 ++ target/riscv/insn32.decode | 14 ++ target/riscv/cpu.c | 4 +- target/riscv/vcrypto_helper.c | 202 +++++++++++++++++++++++ target/riscv/insn_trans/trans_rvvk.c.inc | 147 +++++++++++++++++ 6 files changed, 381 insertions(+), 1 deletion(-) diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -XXX,XX +XXX,XX @@ struct RISCVCPUConfig { bool ext_zve64d; bool ext_zvbb; bool ext_zvbc; + bool ext_zvkned; bool ext_zmmul; bool ext_zvfbfmin; bool ext_zvfbfwma; diff --git a/target/riscv/helper.h b/target/riscv/helper.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -XXX,XX +XXX,XX @@ DEF_HELPER_6(vandn_vx_b, void, ptr, ptr, tl, ptr, env, i32) DEF_HELPER_6(vandn_vx_h, void, ptr, ptr, tl, ptr, env, i32) DEF_HELPER_6(vandn_vx_w, void, ptr, ptr, tl, ptr, env, i32) DEF_HELPER_6(vandn_vx_d, void, ptr, ptr, tl, ptr, env, i32) + +DEF_HELPER_2(egs_check, void, i32, env) + +DEF_HELPER_4(vaesef_vv, void, ptr, ptr, env, i32) +DEF_HELPER_4(vaesef_vs, void, ptr, ptr, env, i32) +DEF_HELPER_4(vaesdf_vv, void, ptr, ptr, env, i32) +DEF_HELPER_4(vaesdf_vs, void, ptr, ptr, env, i32) +DEF_HELPER_4(vaesem_vv, void, ptr, ptr, env, i32) +DEF_HELPER_4(vaesem_vs, void, ptr, ptr, env, i32) +DEF_HELPER_4(vaesdm_vv, void, ptr, ptr, env, i32) +DEF_HELPER_4(vaesdm_vs, void, ptr, ptr, env, i32) +DEF_HELPER_4(vaesz_vs, void, ptr, ptr, env, i32) +DEF_HELPER_5(vaeskf1_vi, void, ptr, ptr, i32, env, i32) +DEF_HELPER_5(vaeskf2_vi, void, ptr, ptr, i32, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -XXX,XX +XXX,XX @@ @r_rm ....... ..... ..... ... ..... ....... %rs2 %rs1 %rm %rd @r2_rm ....... ..... ..... ... ..... ....... %rs1 %rm %rd @r2 ....... ..... ..... ... ..... ....... &r2 %rs1 %rd +@r2_vm_1 ...... . ..... ..... ... ..... ....... &rmr vm=1 %rs2 %rd @r2_nfvm ... ... vm:1 ..... ..... ... ..... ....... &r2nfvm %nf %rs1 %rd @r2_vm ...... vm:1 ..... ..... ... ..... ....... &rmr %rs2 %rd @r1_vm ...... vm:1 ..... ..... ... ..... ....... %rd @@ -XXX,XX +XXX,XX @@ vcpop_v 010010 . ..... 01110 010 ..... 1010111 @r2_vm vwsll_vv 110101 . ..... ..... 000 ..... 1010111 @r_vm vwsll_vx 110101 . ..... ..... 100 ..... 1010111 @r_vm vwsll_vi 110101 . ..... ..... 011 ..... 1010111 @r_vm + +# *** Zvkned vector crypto extension *** +vaesef_vv 101000 1 ..... 00011 010 ..... 1110111 @r2_vm_1 +vaesef_vs 101001 1 ..... 00011 010 ..... 1110111 @r2_vm_1 +vaesdf_vv 101000 1 ..... 00001 010 ..... 1110111 @r2_vm_1 +vaesdf_vs 101001 1 ..... 00001 010 ..... 1110111 @r2_vm_1 +vaesem_vv 101000 1 ..... 00010 010 ..... 1110111 @r2_vm_1 +vaesem_vs 101001 1 ..... 00010 010 ..... 1110111 @r2_vm_1 +vaesdm_vv 101000 1 ..... 00000 010 ..... 1110111 @r2_vm_1 +vaesdm_vs 101001 1 ..... 00000 010 ..... 1110111 @r2_vm_1 +vaesz_vs 101001 1 ..... 00111 010 ..... 1110111 @r2_vm_1 +vaeskf1_vi 100010 1 ..... ..... 010 ..... 1110111 @r_vm_1 +vaeskf2_vi 101010 1 ..... ..... 010 ..... 1110111 @r_vm_1 diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zvfbfwma, PRIV_VERSION_1_12_0, ext_zvfbfwma), ISA_EXT_DATA_ENTRY(zvfh, PRIV_VERSION_1_12_0, ext_zvfh), ISA_EXT_DATA_ENTRY(zvfhmin, PRIV_VERSION_1_12_0, ext_zvfhmin), + ISA_EXT_DATA_ENTRY(zvkned, PRIV_VERSION_1_12_0, ext_zvkned), ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx), ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin), ISA_EXT_DATA_ENTRY(smaia, PRIV_VERSION_1_12_0, ext_smaia), @@ -XXX,XX +XXX,XX @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp) * In principle Zve*x would also suffice here, were they supported * in qemu */ - if (cpu->cfg.ext_zvbb && !cpu->cfg.ext_zve32f) { + if ((cpu->cfg.ext_zvbb || cpu->cfg.ext_zvkned) && !cpu->cfg.ext_zve32f) { error_setg(errp, "Vector crypto extensions require V or Zve* extensions"); return; @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { /* Vector cryptography extensions */ DEFINE_PROP_BOOL("x-zvbb", RISCVCPU, cfg.ext_zvbb, false), DEFINE_PROP_BOOL("x-zvbc", RISCVCPU, cfg.ext_zvbc, false), + DEFINE_PROP_BOOL("x-zvkned", RISCVCPU, cfg.ext_zvkned, false), DEFINE_PROP_END_OF_LIST(), }; diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vcrypto_helper.c +++ b/target/riscv/vcrypto_helper.c @@ -XXX,XX +XXX,XX @@ #include "qemu/bitops.h" #include "qemu/bswap.h" #include "cpu.h" +#include "crypto/aes.h" +#include "crypto/aes-round.h" #include "exec/memop.h" #include "exec/exec-all.h" #include "exec/helper-proto.h" @@ -XXX,XX +XXX,XX @@ RVVCALL(OPIVX2, vwsll_vx_w, WOP_UUU_W, H8, H4, DO_SLL) GEN_VEXT_VX(vwsll_vx_b, 2) GEN_VEXT_VX(vwsll_vx_h, 4) GEN_VEXT_VX(vwsll_vx_w, 8) + +void HELPER(egs_check)(uint32_t egs, CPURISCVState *env) +{ + uint32_t vl = env->vl; + uint32_t vstart = env->vstart; + + if (vl % egs != 0 || vstart % egs != 0) { + riscv_raise_exception(env, RISCV_EXCP_ILLEGAL_INST, GETPC()); + } +} + +static inline void xor_round_key(AESState *round_state, AESState *round_key) +{ + round_state->v = round_state->v ^ round_key->v; +} + +#define GEN_ZVKNED_HELPER_VV(NAME, ...) \ + void HELPER(NAME)(void *vd, void *vs2, CPURISCVState *env, \ + uint32_t desc) \ + { \ + uint32_t vl = env->vl; \ + uint32_t total_elems = vext_get_total_elems(env, desc, 4); \ + uint32_t vta = vext_vta(desc); \ + \ + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { \ + AESState round_key; \ + round_key.d[0] = *((uint64_t *)vs2 + H8(i * 2 + 0)); \ + round_key.d[1] = *((uint64_t *)vs2 + H8(i * 2 + 1)); \ + AESState round_state; \ + round_state.d[0] = *((uint64_t *)vd + H8(i * 2 + 0)); \ + round_state.d[1] = *((uint64_t *)vd + H8(i * 2 + 1)); \ + __VA_ARGS__; \ + *((uint64_t *)vd + H8(i * 2 + 0)) = round_state.d[0]; \ + *((uint64_t *)vd + H8(i * 2 + 1)) = round_state.d[1]; \ + } \ + env->vstart = 0; \ + /* set tail elements to 1s */ \ + vext_set_elems_1s(vd, vta, vl * 4, total_elems * 4); \ + } + +#define GEN_ZVKNED_HELPER_VS(NAME, ...) \ + void HELPER(NAME)(void *vd, void *vs2, CPURISCVState *env, \ + uint32_t desc) \ + { \ + uint32_t vl = env->vl; \ + uint32_t total_elems = vext_get_total_elems(env, desc, 4); \ + uint32_t vta = vext_vta(desc); \ + \ + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { \ + AESState round_key; \ + round_key.d[0] = *((uint64_t *)vs2 + H8(0)); \ + round_key.d[1] = *((uint64_t *)vs2 + H8(1)); \ + AESState round_state; \ + round_state.d[0] = *((uint64_t *)vd + H8(i * 2 + 0)); \ + round_state.d[1] = *((uint64_t *)vd + H8(i * 2 + 1)); \ + __VA_ARGS__; \ + *((uint64_t *)vd + H8(i * 2 + 0)) = round_state.d[0]; \ + *((uint64_t *)vd + H8(i * 2 + 1)) = round_state.d[1]; \ + } \ + env->vstart = 0; \ + /* set tail elements to 1s */ \ + vext_set_elems_1s(vd, vta, vl * 4, total_elems * 4); \ + } + +GEN_ZVKNED_HELPER_VV(vaesef_vv, aesenc_SB_SR_AK(&round_state, + &round_state, + &round_key, + false);) +GEN_ZVKNED_HELPER_VS(vaesef_vs, aesenc_SB_SR_AK(&round_state, + &round_state, + &round_key, + false);) +GEN_ZVKNED_HELPER_VV(vaesdf_vv, aesdec_ISB_ISR_AK(&round_state, + &round_state, + &round_key, + false);) +GEN_ZVKNED_HELPER_VS(vaesdf_vs, aesdec_ISB_ISR_AK(&round_state, + &round_state, + &round_key, + false);) +GEN_ZVKNED_HELPER_VV(vaesem_vv, aesenc_SB_SR_MC_AK(&round_state, + &round_state, + &round_key, + false);) +GEN_ZVKNED_HELPER_VS(vaesem_vs, aesenc_SB_SR_MC_AK(&round_state, + &round_state, + &round_key, + false);) +GEN_ZVKNED_HELPER_VV(vaesdm_vv, aesdec_ISB_ISR_AK_IMC(&round_state, + &round_state, + &round_key, + false);) +GEN_ZVKNED_HELPER_VS(vaesdm_vs, aesdec_ISB_ISR_AK_IMC(&round_state, + &round_state, + &round_key, + false);) +GEN_ZVKNED_HELPER_VS(vaesz_vs, xor_round_key(&round_state, &round_key);) + +void HELPER(vaeskf1_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, + CPURISCVState *env, uint32_t desc) +{ + uint32_t *vd = vd_vptr; + uint32_t *vs2 = vs2_vptr; + uint32_t vl = env->vl; + uint32_t total_elems = vext_get_total_elems(env, desc, 4); + uint32_t vta = vext_vta(desc); + + uimm &= 0b1111; + if (uimm > 10 || uimm == 0) { + uimm ^= 0b1000; + } + + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { + uint32_t rk[8], tmp; + static const uint32_t rcon[] = { + 0x00000001, 0x00000002, 0x00000004, 0x00000008, 0x00000010, + 0x00000020, 0x00000040, 0x00000080, 0x0000001B, 0x00000036, + }; + + rk[0] = vs2[i * 4 + H4(0)]; + rk[1] = vs2[i * 4 + H4(1)]; + rk[2] = vs2[i * 4 + H4(2)]; + rk[3] = vs2[i * 4 + H4(3)]; + tmp = ror32(rk[3], 8); + + rk[4] = rk[0] ^ (((uint32_t)AES_sbox[(tmp >> 24) & 0xff] << 24) | + ((uint32_t)AES_sbox[(tmp >> 16) & 0xff] << 16) | + ((uint32_t)AES_sbox[(tmp >> 8) & 0xff] << 8) | + ((uint32_t)AES_sbox[(tmp >> 0) & 0xff] << 0)) + ^ rcon[uimm - 1]; + rk[5] = rk[1] ^ rk[4]; + rk[6] = rk[2] ^ rk[5]; + rk[7] = rk[3] ^ rk[6]; + + vd[i * 4 + H4(0)] = rk[4]; + vd[i * 4 + H4(1)] = rk[5]; + vd[i * 4 + H4(2)] = rk[6]; + vd[i * 4 + H4(3)] = rk[7]; + } + env->vstart = 0; + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vta, vl * 4, total_elems * 4); +} + +void HELPER(vaeskf2_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, + CPURISCVState *env, uint32_t desc) +{ + uint32_t *vd = vd_vptr; + uint32_t *vs2 = vs2_vptr; + uint32_t vl = env->vl; + uint32_t total_elems = vext_get_total_elems(env, desc, 4); + uint32_t vta = vext_vta(desc); + + uimm &= 0b1111; + if (uimm > 14 || uimm < 2) { + uimm ^= 0b1000; + } + + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { + uint32_t rk[12], tmp; + static const uint32_t rcon[] = { + 0x00000001, 0x00000002, 0x00000004, 0x00000008, 0x00000010, + 0x00000020, 0x00000040, 0x00000080, 0x0000001B, 0x00000036, + }; + + rk[0] = vd[i * 4 + H4(0)]; + rk[1] = vd[i * 4 + H4(1)]; + rk[2] = vd[i * 4 + H4(2)]; + rk[3] = vd[i * 4 + H4(3)]; + rk[4] = vs2[i * 4 + H4(0)]; + rk[5] = vs2[i * 4 + H4(1)]; + rk[6] = vs2[i * 4 + H4(2)]; + rk[7] = vs2[i * 4 + H4(3)]; + + if (uimm % 2 == 0) { + tmp = ror32(rk[7], 8); + rk[8] = rk[0] ^ (((uint32_t)AES_sbox[(tmp >> 24) & 0xff] << 24) | + ((uint32_t)AES_sbox[(tmp >> 16) & 0xff] << 16) | + ((uint32_t)AES_sbox[(tmp >> 8) & 0xff] << 8) | + ((uint32_t)AES_sbox[(tmp >> 0) & 0xff] << 0)) + ^ rcon[(uimm - 1) / 2]; + } else { + rk[8] = rk[0] ^ (((uint32_t)AES_sbox[(rk[7] >> 24) & 0xff] << 24) | + ((uint32_t)AES_sbox[(rk[7] >> 16) & 0xff] << 16) | + ((uint32_t)AES_sbox[(rk[7] >> 8) & 0xff] << 8) | + ((uint32_t)AES_sbox[(rk[7] >> 0) & 0xff] << 0)); + } + rk[9] = rk[1] ^ rk[8]; + rk[10] = rk[2] ^ rk[9]; + rk[11] = rk[3] ^ rk[10]; + + vd[i * 4 + H4(0)] = rk[8]; + vd[i * 4 + H4(1)] = rk[9]; + vd[i * 4 + H4(2)] = rk[10]; + vd[i * 4 + H4(3)] = rk[11]; + } + env->vstart = 0; + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vta, vl * 4, total_elems * 4); +} diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvvk.c.inc +++ b/target/riscv/insn_trans/trans_rvvk.c.inc @@ -XXX,XX +XXX,XX @@ static bool vwsll_vx_check(DisasContext *s, arg_rmrr *a) GEN_OPIVV_WIDEN_TRANS(vwsll_vv, vwsll_vv_check) GEN_OPIVX_WIDEN_TRANS(vwsll_vx, vwsll_vx_check) GEN_OPIVI_WIDEN_TRANS(vwsll_vi, IMM_ZX, vwsll_vx, vwsll_vx_check) + +/* + * Zvkned + */ + +#define ZVKNED_EGS 4 + +#define GEN_V_UNMASKED_TRANS(NAME, CHECK, EGS) \ + static bool trans_##NAME(DisasContext *s, arg_##NAME *a) \ + { \ + if (CHECK(s, a)) { \ + TCGv_ptr rd_v, rs2_v; \ + TCGv_i32 desc, egs; \ + uint32_t data = 0; \ + TCGLabel *over = gen_new_label(); \ + \ + if (!s->vstart_eq_zero || !s->vl_eq_vlmax) { \ + /* save opcode for unwinding in case we throw an exception */ \ + decode_save_opc(s); \ + egs = tcg_constant_i32(EGS); \ + gen_helper_egs_check(egs, cpu_env); \ + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ + } \ + \ + data = FIELD_DP32(data, VDATA, VM, a->vm); \ + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ + data = FIELD_DP32(data, VDATA, VTA, s->vta); \ + data = FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s); \ + data = FIELD_DP32(data, VDATA, VMA, s->vma); \ + rd_v = tcg_temp_new_ptr(); \ + rs2_v = tcg_temp_new_ptr(); \ + desc = tcg_constant_i32( \ + simd_desc(s->cfg_ptr->vlen / 8, s->cfg_ptr->vlen / 8, data)); \ + tcg_gen_addi_ptr(rd_v, cpu_env, vreg_ofs(s, a->rd)); \ + tcg_gen_addi_ptr(rs2_v, cpu_env, vreg_ofs(s, a->rs2)); \ + gen_helper_##NAME(rd_v, rs2_v, cpu_env, desc); \ + mark_vs_dirty(s); \ + gen_set_label(over); \ + return true; \ + } \ + return false; \ + } + +static bool vaes_check_vv(DisasContext *s, arg_rmr *a) +{ + int egw_bytes = ZVKNED_EGS << s->sew; + return s->cfg_ptr->ext_zvkned == true && + require_rvv(s) && + vext_check_isa_ill(s) && + MAXSZ(s) >= egw_bytes && + require_align(a->rd, s->lmul) && + require_align(a->rs2, s->lmul) && + s->sew == MO_32; +} + +static bool vaes_check_overlap(DisasContext *s, int vd, int vs2) +{ + int8_t op_size = s->lmul <= 0 ? 1 : 1 << s->lmul; + return !is_overlapped(vd, op_size, vs2, 1); +} + +static bool vaes_check_vs(DisasContext *s, arg_rmr *a) +{ + int egw_bytes = ZVKNED_EGS << s->sew; + return vaes_check_overlap(s, a->rd, a->rs2) && + MAXSZ(s) >= egw_bytes && + s->cfg_ptr->ext_zvkned == true && + require_rvv(s) && + vext_check_isa_ill(s) && + require_align(a->rd, s->lmul) && + s->sew == MO_32; +} + +GEN_V_UNMASKED_TRANS(vaesef_vv, vaes_check_vv, ZVKNED_EGS) +GEN_V_UNMASKED_TRANS(vaesef_vs, vaes_check_vs, ZVKNED_EGS) +GEN_V_UNMASKED_TRANS(vaesdf_vv, vaes_check_vv, ZVKNED_EGS) +GEN_V_UNMASKED_TRANS(vaesdf_vs, vaes_check_vs, ZVKNED_EGS) +GEN_V_UNMASKED_TRANS(vaesdm_vv, vaes_check_vv, ZVKNED_EGS) +GEN_V_UNMASKED_TRANS(vaesdm_vs, vaes_check_vs, ZVKNED_EGS) +GEN_V_UNMASKED_TRANS(vaesz_vs, vaes_check_vs, ZVKNED_EGS) +GEN_V_UNMASKED_TRANS(vaesem_vv, vaes_check_vv, ZVKNED_EGS) +GEN_V_UNMASKED_TRANS(vaesem_vs, vaes_check_vs, ZVKNED_EGS) + +#define GEN_VI_UNMASKED_TRANS(NAME, CHECK, EGS) \ + static bool trans_##NAME(DisasContext *s, arg_##NAME *a) \ + { \ + if (CHECK(s, a)) { \ + TCGv_ptr rd_v, rs2_v; \ + TCGv_i32 uimm_v, desc, egs; \ + uint32_t data = 0; \ + TCGLabel *over = gen_new_label(); \ + \ + if (!s->vstart_eq_zero || !s->vl_eq_vlmax) { \ + /* save opcode for unwinding in case we throw an exception */ \ + decode_save_opc(s); \ + egs = tcg_constant_i32(EGS); \ + gen_helper_egs_check(egs, cpu_env); \ + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ + } \ + \ + data = FIELD_DP32(data, VDATA, VM, a->vm); \ + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ + data = FIELD_DP32(data, VDATA, VTA, s->vta); \ + data = FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s); \ + data = FIELD_DP32(data, VDATA, VMA, s->vma); \ + \ + rd_v = tcg_temp_new_ptr(); \ + rs2_v = tcg_temp_new_ptr(); \ + uimm_v = tcg_constant_i32(a->rs1); \ + desc = tcg_constant_i32( \ + simd_desc(s->cfg_ptr->vlen / 8, s->cfg_ptr->vlen / 8, data)); \ + tcg_gen_addi_ptr(rd_v, cpu_env, vreg_ofs(s, a->rd)); \ + tcg_gen_addi_ptr(rs2_v, cpu_env, vreg_ofs(s, a->rs2)); \ + gen_helper_##NAME(rd_v, rs2_v, uimm_v, cpu_env, desc); \ + mark_vs_dirty(s); \ + gen_set_label(over); \ + return true; \ + } \ + return false; \ + } + +static bool vaeskf1_check(DisasContext *s, arg_vaeskf1_vi *a) +{ + int egw_bytes = ZVKNED_EGS << s->sew; + return s->cfg_ptr->ext_zvkned == true && + require_rvv(s) && + vext_check_isa_ill(s) && + MAXSZ(s) >= egw_bytes && + s->sew == MO_32 && + require_align(a->rd, s->lmul) && + require_align(a->rs2, s->lmul); +} + +static bool vaeskf2_check(DisasContext *s, arg_vaeskf2_vi *a) +{ + int egw_bytes = ZVKNED_EGS << s->sew; + return s->cfg_ptr->ext_zvkned == true && + require_rvv(s) && + vext_check_isa_ill(s) && + MAXSZ(s) >= egw_bytes && + s->sew == MO_32 && + require_align(a->rd, s->lmul) && + require_align(a->rs2, s->lmul); +} + +GEN_VI_UNMASKED_TRANS(vaeskf1_vi, vaeskf1_check, ZVKNED_EGS) +GEN_VI_UNMASKED_TRANS(vaeskf2_vi, vaeskf2_check, ZVKNED_EGS) -- 2.41.0 From: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> This commit adds support for the Zvknh vector-crypto extension, which consists of the following instructions: * vsha2ms.vv * vsha2c[hl].vv Translation functions are defined in `target/riscv/insn_trans/trans_rvvk.c.inc` and helpers are defined in `target/riscv/vcrypto_helper.c`. Co-authored-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Co-authored-by: Lawrence Hunter <lawrence.hunter@codethink.co.uk> [max.chou@sifive.com: Replaced vstart checking by TCG op] Signed-off-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Signed-off-by: Lawrence Hunter <lawrence.hunter@codethink.co.uk> Signed-off-by: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> Signed-off-by: Max Chou <max.chou@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> [max.chou@sifive.com: Exposed x-zvknha & x-zvknhb properties] [max.chou@sifive.com: Replaced SEW selection to happened during translation] Message-ID: <20230711165917.2629866-11-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu_cfg.h | 2 + target/riscv/helper.h | 6 + target/riscv/insn32.decode | 5 + target/riscv/cpu.c | 13 +- target/riscv/vcrypto_helper.c | 238 +++++++++++++++++++++++ target/riscv/insn_trans/trans_rvvk.c.inc | 129 ++++++++++++ 6 files changed, 390 insertions(+), 3 deletions(-) diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -XXX,XX +XXX,XX @@ struct RISCVCPUConfig { bool ext_zvbb; bool ext_zvbc; bool ext_zvkned; + bool ext_zvknha; + bool ext_zvknhb; bool ext_zmmul; bool ext_zvfbfmin; bool ext_zvfbfwma; diff --git a/target/riscv/helper.h b/target/riscv/helper.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -XXX,XX +XXX,XX @@ DEF_HELPER_4(vaesdm_vs, void, ptr, ptr, env, i32) DEF_HELPER_4(vaesz_vs, void, ptr, ptr, env, i32) DEF_HELPER_5(vaeskf1_vi, void, ptr, ptr, i32, env, i32) DEF_HELPER_5(vaeskf2_vi, void, ptr, ptr, i32, env, i32) + +DEF_HELPER_5(vsha2ms_vv, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vsha2ch32_vv, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vsha2ch64_vv, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vsha2cl32_vv, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vsha2cl64_vv, void, ptr, ptr, ptr, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -XXX,XX +XXX,XX @@ vaesdm_vs 101001 1 ..... 00000 010 ..... 1110111 @r2_vm_1 vaesz_vs 101001 1 ..... 00111 010 ..... 1110111 @r2_vm_1 vaeskf1_vi 100010 1 ..... ..... 010 ..... 1110111 @r_vm_1 vaeskf2_vi 101010 1 ..... ..... 010 ..... 1110111 @r_vm_1 + +# *** Zvknh vector crypto extension *** +vsha2ms_vv 101101 1 ..... ..... 010 ..... 1110111 @r_vm_1 +vsha2ch_vv 101110 1 ..... ..... 010 ..... 1110111 @r_vm_1 +vsha2cl_vv 101111 1 ..... ..... 010 ..... 1110111 @r_vm_1 diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zvfh, PRIV_VERSION_1_12_0, ext_zvfh), ISA_EXT_DATA_ENTRY(zvfhmin, PRIV_VERSION_1_12_0, ext_zvfhmin), ISA_EXT_DATA_ENTRY(zvkned, PRIV_VERSION_1_12_0, ext_zvkned), + ISA_EXT_DATA_ENTRY(zvknha, PRIV_VERSION_1_12_0, ext_zvknha), + ISA_EXT_DATA_ENTRY(zvknhb, PRIV_VERSION_1_12_0, ext_zvknhb), ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx), ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin), ISA_EXT_DATA_ENTRY(smaia, PRIV_VERSION_1_12_0, ext_smaia), @@ -XXX,XX +XXX,XX @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp) * In principle Zve*x would also suffice here, were they supported * in qemu */ - if ((cpu->cfg.ext_zvbb || cpu->cfg.ext_zvkned) && !cpu->cfg.ext_zve32f) { + if ((cpu->cfg.ext_zvbb || cpu->cfg.ext_zvkned || cpu->cfg.ext_zvknha) && + !cpu->cfg.ext_zve32f) { error_setg(errp, "Vector crypto extensions require V or Zve* extensions"); return; } - if (cpu->cfg.ext_zvbc && !cpu->cfg.ext_zve64f) { - error_setg(errp, "Zvbc extension requires V or Zve64{f,d} extensions"); + if ((cpu->cfg.ext_zvbc || cpu->cfg.ext_zvknhb) && !cpu->cfg.ext_zve64f) { + error_setg( + errp, + "Zvbc and Zvknhb extensions require V or Zve64{f,d} extensions"); return; } @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { DEFINE_PROP_BOOL("x-zvbb", RISCVCPU, cfg.ext_zvbb, false), DEFINE_PROP_BOOL("x-zvbc", RISCVCPU, cfg.ext_zvbc, false), DEFINE_PROP_BOOL("x-zvkned", RISCVCPU, cfg.ext_zvkned, false), + DEFINE_PROP_BOOL("x-zvknha", RISCVCPU, cfg.ext_zvknha, false), + DEFINE_PROP_BOOL("x-zvknhb", RISCVCPU, cfg.ext_zvknhb, false), DEFINE_PROP_END_OF_LIST(), }; diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vcrypto_helper.c +++ b/target/riscv/vcrypto_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(vaeskf2_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, /* set tail elements to 1s */ vext_set_elems_1s(vd, vta, vl * 4, total_elems * 4); } + +static inline uint32_t sig0_sha256(uint32_t x) +{ + return ror32(x, 7) ^ ror32(x, 18) ^ (x >> 3); +} + +static inline uint32_t sig1_sha256(uint32_t x) +{ + return ror32(x, 17) ^ ror32(x, 19) ^ (x >> 10); +} + +static inline uint64_t sig0_sha512(uint64_t x) +{ + return ror64(x, 1) ^ ror64(x, 8) ^ (x >> 7); +} + +static inline uint64_t sig1_sha512(uint64_t x) +{ + return ror64(x, 19) ^ ror64(x, 61) ^ (x >> 6); +} + +static inline void vsha2ms_e32(uint32_t *vd, uint32_t *vs1, uint32_t *vs2) +{ + uint32_t res[4]; + res[0] = sig1_sha256(vs1[H4(2)]) + vs2[H4(1)] + sig0_sha256(vd[H4(1)]) + + vd[H4(0)]; + res[1] = sig1_sha256(vs1[H4(3)]) + vs2[H4(2)] + sig0_sha256(vd[H4(2)]) + + vd[H4(1)]; + res[2] = + sig1_sha256(res[0]) + vs2[H4(3)] + sig0_sha256(vd[H4(3)]) + vd[H4(2)]; + res[3] = + sig1_sha256(res[1]) + vs1[H4(0)] + sig0_sha256(vs2[H4(0)]) + vd[H4(3)]; + vd[H4(3)] = res[3]; + vd[H4(2)] = res[2]; + vd[H4(1)] = res[1]; + vd[H4(0)] = res[0]; +} + +static inline void vsha2ms_e64(uint64_t *vd, uint64_t *vs1, uint64_t *vs2) +{ + uint64_t res[4]; + res[0] = sig1_sha512(vs1[2]) + vs2[1] + sig0_sha512(vd[1]) + vd[0]; + res[1] = sig1_sha512(vs1[3]) + vs2[2] + sig0_sha512(vd[2]) + vd[1]; + res[2] = sig1_sha512(res[0]) + vs2[3] + sig0_sha512(vd[3]) + vd[2]; + res[3] = sig1_sha512(res[1]) + vs1[0] + sig0_sha512(vs2[0]) + vd[3]; + vd[3] = res[3]; + vd[2] = res[2]; + vd[1] = res[1]; + vd[0] = res[0]; +} + +void HELPER(vsha2ms_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, + uint32_t desc) +{ + uint32_t sew = FIELD_EX64(env->vtype, VTYPE, VSEW); + uint32_t esz = sew == MO_32 ? 4 : 8; + uint32_t total_elems; + uint32_t vta = vext_vta(desc); + + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { + if (sew == MO_32) { + vsha2ms_e32(((uint32_t *)vd) + i * 4, ((uint32_t *)vs1) + i * 4, + ((uint32_t *)vs2) + i * 4); + } else { + /* If not 32 then SEW should be 64 */ + vsha2ms_e64(((uint64_t *)vd) + i * 4, ((uint64_t *)vs1) + i * 4, + ((uint64_t *)vs2) + i * 4); + } + } + /* set tail elements to 1s */ + total_elems = vext_get_total_elems(env, desc, esz); + vext_set_elems_1s(vd, vta, env->vl * esz, total_elems * esz); + env->vstart = 0; +} + +static inline uint64_t sum0_64(uint64_t x) +{ + return ror64(x, 28) ^ ror64(x, 34) ^ ror64(x, 39); +} + +static inline uint32_t sum0_32(uint32_t x) +{ + return ror32(x, 2) ^ ror32(x, 13) ^ ror32(x, 22); +} + +static inline uint64_t sum1_64(uint64_t x) +{ + return ror64(x, 14) ^ ror64(x, 18) ^ ror64(x, 41); +} + +static inline uint32_t sum1_32(uint32_t x) +{ + return ror32(x, 6) ^ ror32(x, 11) ^ ror32(x, 25); +} + +#define ch(x, y, z) ((x & y) ^ ((~x) & z)) + +#define maj(x, y, z) ((x & y) ^ (x & z) ^ (y & z)) + +static void vsha2c_64(uint64_t *vs2, uint64_t *vd, uint64_t *vs1) +{ + uint64_t a = vs2[3], b = vs2[2], e = vs2[1], f = vs2[0]; + uint64_t c = vd[3], d = vd[2], g = vd[1], h = vd[0]; + uint64_t W0 = vs1[0], W1 = vs1[1]; + uint64_t T1 = h + sum1_64(e) + ch(e, f, g) + W0; + uint64_t T2 = sum0_64(a) + maj(a, b, c); + + h = g; + g = f; + f = e; + e = d + T1; + d = c; + c = b; + b = a; + a = T1 + T2; + + T1 = h + sum1_64(e) + ch(e, f, g) + W1; + T2 = sum0_64(a) + maj(a, b, c); + h = g; + g = f; + f = e; + e = d + T1; + d = c; + c = b; + b = a; + a = T1 + T2; + + vd[0] = f; + vd[1] = e; + vd[2] = b; + vd[3] = a; +} + +static void vsha2c_32(uint32_t *vs2, uint32_t *vd, uint32_t *vs1) +{ + uint32_t a = vs2[H4(3)], b = vs2[H4(2)], e = vs2[H4(1)], f = vs2[H4(0)]; + uint32_t c = vd[H4(3)], d = vd[H4(2)], g = vd[H4(1)], h = vd[H4(0)]; + uint32_t W0 = vs1[H4(0)], W1 = vs1[H4(1)]; + uint32_t T1 = h + sum1_32(e) + ch(e, f, g) + W0; + uint32_t T2 = sum0_32(a) + maj(a, b, c); + + h = g; + g = f; + f = e; + e = d + T1; + d = c; + c = b; + b = a; + a = T1 + T2; + + T1 = h + sum1_32(e) + ch(e, f, g) + W1; + T2 = sum0_32(a) + maj(a, b, c); + h = g; + g = f; + f = e; + e = d + T1; + d = c; + c = b; + b = a; + a = T1 + T2; + + vd[H4(0)] = f; + vd[H4(1)] = e; + vd[H4(2)] = b; + vd[H4(3)] = a; +} + +void HELPER(vsha2ch32_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, + uint32_t desc) +{ + const uint32_t esz = 4; + uint32_t total_elems; + uint32_t vta = vext_vta(desc); + + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { + vsha2c_32(((uint32_t *)vs2) + 4 * i, ((uint32_t *)vd) + 4 * i, + ((uint32_t *)vs1) + 4 * i + 2); + } + + /* set tail elements to 1s */ + total_elems = vext_get_total_elems(env, desc, esz); + vext_set_elems_1s(vd, vta, env->vl * esz, total_elems * esz); + env->vstart = 0; +} + +void HELPER(vsha2ch64_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, + uint32_t desc) +{ + const uint32_t esz = 8; + uint32_t total_elems; + uint32_t vta = vext_vta(desc); + + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { + vsha2c_64(((uint64_t *)vs2) + 4 * i, ((uint64_t *)vd) + 4 * i, + ((uint64_t *)vs1) + 4 * i + 2); + } + + /* set tail elements to 1s */ + total_elems = vext_get_total_elems(env, desc, esz); + vext_set_elems_1s(vd, vta, env->vl * esz, total_elems * esz); + env->vstart = 0; +} + +void HELPER(vsha2cl32_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, + uint32_t desc) +{ + const uint32_t esz = 4; + uint32_t total_elems; + uint32_t vta = vext_vta(desc); + + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { + vsha2c_32(((uint32_t *)vs2) + 4 * i, ((uint32_t *)vd) + 4 * i, + (((uint32_t *)vs1) + 4 * i)); + } + + /* set tail elements to 1s */ + total_elems = vext_get_total_elems(env, desc, esz); + vext_set_elems_1s(vd, vta, env->vl * esz, total_elems * esz); + env->vstart = 0; +} + +void HELPER(vsha2cl64_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, + uint32_t desc) +{ + uint32_t esz = 8; + uint32_t total_elems; + uint32_t vta = vext_vta(desc); + + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { + vsha2c_64(((uint64_t *)vs2) + 4 * i, ((uint64_t *)vd) + 4 * i, + (((uint64_t *)vs1) + 4 * i)); + } + + /* set tail elements to 1s */ + total_elems = vext_get_total_elems(env, desc, esz); + vext_set_elems_1s(vd, vta, env->vl * esz, total_elems * esz); + env->vstart = 0; +} diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvvk.c.inc +++ b/target/riscv/insn_trans/trans_rvvk.c.inc @@ -XXX,XX +XXX,XX @@ static bool vaeskf2_check(DisasContext *s, arg_vaeskf2_vi *a) GEN_VI_UNMASKED_TRANS(vaeskf1_vi, vaeskf1_check, ZVKNED_EGS) GEN_VI_UNMASKED_TRANS(vaeskf2_vi, vaeskf2_check, ZVKNED_EGS) + +/* + * Zvknh + */ + +#define ZVKNH_EGS 4 + +#define GEN_VV_UNMASKED_TRANS(NAME, CHECK, EGS) \ + static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ + { \ + if (CHECK(s, a)) { \ + uint32_t data = 0; \ + TCGLabel *over = gen_new_label(); \ + TCGv_i32 egs; \ + \ + if (!s->vstart_eq_zero || !s->vl_eq_vlmax) { \ + /* save opcode for unwinding in case we throw an exception */ \ + decode_save_opc(s); \ + egs = tcg_constant_i32(EGS); \ + gen_helper_egs_check(egs, cpu_env); \ + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); \ + } \ + \ + data = FIELD_DP32(data, VDATA, VM, a->vm); \ + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); \ + data = FIELD_DP32(data, VDATA, VTA, s->vta); \ + data = FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s); \ + data = FIELD_DP32(data, VDATA, VMA, s->vma); \ + \ + tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, a->rs1), \ + vreg_ofs(s, a->rs2), cpu_env, \ + s->cfg_ptr->vlen / 8, s->cfg_ptr->vlen / 8, \ + data, gen_helper_##NAME); \ + \ + mark_vs_dirty(s); \ + gen_set_label(over); \ + return true; \ + } \ + return false; \ + } + +static bool vsha_check_sew(DisasContext *s) +{ + return (s->cfg_ptr->ext_zvknha == true && s->sew == MO_32) || + (s->cfg_ptr->ext_zvknhb == true && + (s->sew == MO_32 || s->sew == MO_64)); +} + +static bool vsha_check(DisasContext *s, arg_rmrr *a) +{ + int egw_bytes = ZVKNH_EGS << s->sew; + int mult = 1 << MAX(s->lmul, 0); + return opivv_check(s, a) && + vsha_check_sew(s) && + MAXSZ(s) >= egw_bytes && + !is_overlapped(a->rd, mult, a->rs1, mult) && + !is_overlapped(a->rd, mult, a->rs2, mult) && + s->lmul >= 0; +} + +GEN_VV_UNMASKED_TRANS(vsha2ms_vv, vsha_check, ZVKNH_EGS) + +static bool trans_vsha2cl_vv(DisasContext *s, arg_rmrr *a) +{ + if (vsha_check(s, a)) { + uint32_t data = 0; + TCGLabel *over = gen_new_label(); + TCGv_i32 egs; + + if (!s->vstart_eq_zero || !s->vl_eq_vlmax) { + /* save opcode for unwinding in case we throw an exception */ + decode_save_opc(s); + egs = tcg_constant_i32(ZVKNH_EGS); + gen_helper_egs_check(egs, cpu_env); + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); + } + + data = FIELD_DP32(data, VDATA, VM, a->vm); + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); + data = FIELD_DP32(data, VDATA, VTA, s->vta); + data = FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s); + data = FIELD_DP32(data, VDATA, VMA, s->vma); + + tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, a->rs1), + vreg_ofs(s, a->rs2), cpu_env, s->cfg_ptr->vlen / 8, + s->cfg_ptr->vlen / 8, data, + s->sew == MO_32 ? + gen_helper_vsha2cl32_vv : gen_helper_vsha2cl64_vv); + + mark_vs_dirty(s); + gen_set_label(over); + return true; + } + return false; +} + +static bool trans_vsha2ch_vv(DisasContext *s, arg_rmrr *a) +{ + if (vsha_check(s, a)) { + uint32_t data = 0; + TCGLabel *over = gen_new_label(); + TCGv_i32 egs; + + if (!s->vstart_eq_zero || !s->vl_eq_vlmax) { + /* save opcode for unwinding in case we throw an exception */ + decode_save_opc(s); + egs = tcg_constant_i32(ZVKNH_EGS); + gen_helper_egs_check(egs, cpu_env); + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); + } + + data = FIELD_DP32(data, VDATA, VM, a->vm); + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); + data = FIELD_DP32(data, VDATA, VTA, s->vta); + data = FIELD_DP32(data, VDATA, VTA_ALL_1S, s->cfg_vta_all_1s); + data = FIELD_DP32(data, VDATA, VMA, s->vma); + + tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, a->rs1), + vreg_ofs(s, a->rs2), cpu_env, s->cfg_ptr->vlen / 8, + s->cfg_ptr->vlen / 8, data, + s->sew == MO_32 ? + gen_helper_vsha2ch32_vv : gen_helper_vsha2ch64_vv); + + mark_vs_dirty(s); + gen_set_label(over); + return true; + } + return false; +} -- 2.41.0 From: Lawrence Hunter <lawrence.hunter@codethink.co.uk> This commit adds support for the Zvksh vector-crypto extension, which consists of the following instructions: * vsm3me.vv * vsm3c.vi Translation functions are defined in `target/riscv/insn_trans/trans_rvvk.c.inc` and helpers are defined in `target/riscv/vcrypto_helper.c`. Co-authored-by: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> [max.chou@sifive.com: Replaced vstart checking by TCG op] Signed-off-by: Kiran Ostrolenk <kiran.ostrolenk@codethink.co.uk> Signed-off-by: Lawrence Hunter <lawrence.hunter@codethink.co.uk> Signed-off-by: Max Chou <max.chou@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> [max.chou@sifive.com: Exposed x-zvksh property] Message-ID: <20230711165917.2629866-12-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu_cfg.h | 1 + target/riscv/helper.h | 3 + target/riscv/insn32.decode | 4 + target/riscv/cpu.c | 6 +- target/riscv/vcrypto_helper.c | 134 +++++++++++++++++++++++ target/riscv/insn_trans/trans_rvvk.c.inc | 31 ++++++ 6 files changed, 177 insertions(+), 2 deletions(-) diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -XXX,XX +XXX,XX @@ struct RISCVCPUConfig { bool ext_zvkned; bool ext_zvknha; bool ext_zvknhb; + bool ext_zvksh; bool ext_zmmul; bool ext_zvfbfmin; bool ext_zvfbfwma; diff --git a/target/riscv/helper.h b/target/riscv/helper.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -XXX,XX +XXX,XX @@ DEF_HELPER_5(vsha2ch32_vv, void, ptr, ptr, ptr, env, i32) DEF_HELPER_5(vsha2ch64_vv, void, ptr, ptr, ptr, env, i32) DEF_HELPER_5(vsha2cl32_vv, void, ptr, ptr, ptr, env, i32) DEF_HELPER_5(vsha2cl64_vv, void, ptr, ptr, ptr, env, i32) + +DEF_HELPER_5(vsm3me_vv, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_5(vsm3c_vi, void, ptr, ptr, i32, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -XXX,XX +XXX,XX @@ vaeskf2_vi 101010 1 ..... ..... 010 ..... 1110111 @r_vm_1 vsha2ms_vv 101101 1 ..... ..... 010 ..... 1110111 @r_vm_1 vsha2ch_vv 101110 1 ..... ..... 010 ..... 1110111 @r_vm_1 vsha2cl_vv 101111 1 ..... ..... 010 ..... 1110111 @r_vm_1 + +# *** Zvksh vector crypto extension *** +vsm3me_vv 100000 1 ..... ..... 010 ..... 1110111 @r_vm_1 +vsm3c_vi 101011 1 ..... ..... 010 ..... 1110111 @r_vm_1 diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zvkned, PRIV_VERSION_1_12_0, ext_zvkned), ISA_EXT_DATA_ENTRY(zvknha, PRIV_VERSION_1_12_0, ext_zvknha), ISA_EXT_DATA_ENTRY(zvknhb, PRIV_VERSION_1_12_0, ext_zvknhb), + ISA_EXT_DATA_ENTRY(zvksh, PRIV_VERSION_1_12_0, ext_zvksh), ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx), ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin), ISA_EXT_DATA_ENTRY(smaia, PRIV_VERSION_1_12_0, ext_smaia), @@ -XXX,XX +XXX,XX @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp) * In principle Zve*x would also suffice here, were they supported * in qemu */ - if ((cpu->cfg.ext_zvbb || cpu->cfg.ext_zvkned || cpu->cfg.ext_zvknha) && - !cpu->cfg.ext_zve32f) { + if ((cpu->cfg.ext_zvbb || cpu->cfg.ext_zvkned || cpu->cfg.ext_zvknha || + cpu->cfg.ext_zvksh) && !cpu->cfg.ext_zve32f) { error_setg(errp, "Vector crypto extensions require V or Zve* extensions"); return; @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { DEFINE_PROP_BOOL("x-zvkned", RISCVCPU, cfg.ext_zvkned, false), DEFINE_PROP_BOOL("x-zvknha", RISCVCPU, cfg.ext_zvknha, false), DEFINE_PROP_BOOL("x-zvknhb", RISCVCPU, cfg.ext_zvknhb, false), + DEFINE_PROP_BOOL("x-zvksh", RISCVCPU, cfg.ext_zvksh, false), DEFINE_PROP_END_OF_LIST(), }; diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vcrypto_helper.c +++ b/target/riscv/vcrypto_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(vsha2cl64_vv)(void *vd, void *vs1, void *vs2, CPURISCVState *env, vext_set_elems_1s(vd, vta, env->vl * esz, total_elems * esz); env->vstart = 0; } + +static inline uint32_t p1(uint32_t x) +{ + return x ^ rol32(x, 15) ^ rol32(x, 23); +} + +static inline uint32_t zvksh_w(uint32_t m16, uint32_t m9, uint32_t m3, + uint32_t m13, uint32_t m6) +{ + return p1(m16 ^ m9 ^ rol32(m3, 15)) ^ rol32(m13, 7) ^ m6; +} + +void HELPER(vsm3me_vv)(void *vd_vptr, void *vs1_vptr, void *vs2_vptr, + CPURISCVState *env, uint32_t desc) +{ + uint32_t esz = memop_size(FIELD_EX64(env->vtype, VTYPE, VSEW)); + uint32_t total_elems = vext_get_total_elems(env, desc, esz); + uint32_t vta = vext_vta(desc); + uint32_t *vd = vd_vptr; + uint32_t *vs1 = vs1_vptr; + uint32_t *vs2 = vs2_vptr; + + for (int i = env->vstart / 8; i < env->vl / 8; i++) { + uint32_t w[24]; + for (int j = 0; j < 8; j++) { + w[j] = bswap32(vs1[H4((i * 8) + j)]); + w[j + 8] = bswap32(vs2[H4((i * 8) + j)]); + } + for (int j = 0; j < 8; j++) { + w[j + 16] = + zvksh_w(w[j], w[j + 7], w[j + 13], w[j + 3], w[j + 10]); + } + for (int j = 0; j < 8; j++) { + vd[(i * 8) + j] = bswap32(w[H4(j + 16)]); + } + } + vext_set_elems_1s(vd_vptr, vta, env->vl * esz, total_elems * esz); + env->vstart = 0; +} + +static inline uint32_t ff1(uint32_t x, uint32_t y, uint32_t z) +{ + return x ^ y ^ z; +} + +static inline uint32_t ff2(uint32_t x, uint32_t y, uint32_t z) +{ + return (x & y) | (x & z) | (y & z); +} + +static inline uint32_t ff_j(uint32_t x, uint32_t y, uint32_t z, uint32_t j) +{ + return (j <= 15) ? ff1(x, y, z) : ff2(x, y, z); +} + +static inline uint32_t gg1(uint32_t x, uint32_t y, uint32_t z) +{ + return x ^ y ^ z; +} + +static inline uint32_t gg2(uint32_t x, uint32_t y, uint32_t z) +{ + return (x & y) | (~x & z); +} + +static inline uint32_t gg_j(uint32_t x, uint32_t y, uint32_t z, uint32_t j) +{ + return (j <= 15) ? gg1(x, y, z) : gg2(x, y, z); +} + +static inline uint32_t t_j(uint32_t j) +{ + return (j <= 15) ? 0x79cc4519 : 0x7a879d8a; +} + +static inline uint32_t p_0(uint32_t x) +{ + return x ^ rol32(x, 9) ^ rol32(x, 17); +} + +static void sm3c(uint32_t *vd, uint32_t *vs1, uint32_t *vs2, uint32_t uimm) +{ + uint32_t x0, x1; + uint32_t j; + uint32_t ss1, ss2, tt1, tt2; + x0 = vs2[0] ^ vs2[4]; + x1 = vs2[1] ^ vs2[5]; + j = 2 * uimm; + ss1 = rol32(rol32(vs1[0], 12) + vs1[4] + rol32(t_j(j), j % 32), 7); + ss2 = ss1 ^ rol32(vs1[0], 12); + tt1 = ff_j(vs1[0], vs1[1], vs1[2], j) + vs1[3] + ss2 + x0; + tt2 = gg_j(vs1[4], vs1[5], vs1[6], j) + vs1[7] + ss1 + vs2[0]; + vs1[3] = vs1[2]; + vd[3] = rol32(vs1[1], 9); + vs1[1] = vs1[0]; + vd[1] = tt1; + vs1[7] = vs1[6]; + vd[7] = rol32(vs1[5], 19); + vs1[5] = vs1[4]; + vd[5] = p_0(tt2); + j = 2 * uimm + 1; + ss1 = rol32(rol32(vd[1], 12) + vd[5] + rol32(t_j(j), j % 32), 7); + ss2 = ss1 ^ rol32(vd[1], 12); + tt1 = ff_j(vd[1], vs1[1], vd[3], j) + vs1[3] + ss2 + x1; + tt2 = gg_j(vd[5], vs1[5], vd[7], j) + vs1[7] + ss1 + vs2[1]; + vd[2] = rol32(vs1[1], 9); + vd[0] = tt1; + vd[6] = rol32(vs1[5], 19); + vd[4] = p_0(tt2); +} + +void HELPER(vsm3c_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, + CPURISCVState *env, uint32_t desc) +{ + uint32_t esz = memop_size(FIELD_EX64(env->vtype, VTYPE, VSEW)); + uint32_t total_elems = vext_get_total_elems(env, desc, esz); + uint32_t vta = vext_vta(desc); + uint32_t *vd = vd_vptr; + uint32_t *vs2 = vs2_vptr; + uint32_t v1[8], v2[8], v3[8]; + + for (int i = env->vstart / 8; i < env->vl / 8; i++) { + for (int k = 0; k < 8; k++) { + v2[k] = bswap32(vd[H4(i * 8 + k)]); + v3[k] = bswap32(vs2[H4(i * 8 + k)]); + } + sm3c(v1, v2, v3, uimm); + for (int k = 0; k < 8; k++) { + vd[i * 8 + k] = bswap32(v1[H4(k)]); + } + } + vext_set_elems_1s(vd_vptr, vta, env->vl * esz, total_elems * esz); + env->vstart = 0; +} diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvvk.c.inc +++ b/target/riscv/insn_trans/trans_rvvk.c.inc @@ -XXX,XX +XXX,XX @@ static bool trans_vsha2ch_vv(DisasContext *s, arg_rmrr *a) } return false; } + +/* + * Zvksh + */ + +#define ZVKSH_EGS 8 + +static inline bool vsm3_check(DisasContext *s, arg_rmrr *a) +{ + int egw_bytes = ZVKSH_EGS << s->sew; + int mult = 1 << MAX(s->lmul, 0); + return s->cfg_ptr->ext_zvksh == true && + require_rvv(s) && + vext_check_isa_ill(s) && + !is_overlapped(a->rd, mult, a->rs2, mult) && + MAXSZ(s) >= egw_bytes && + s->sew == MO_32; +} + +static inline bool vsm3me_check(DisasContext *s, arg_rmrr *a) +{ + return vsm3_check(s, a) && vext_check_sss(s, a->rd, a->rs1, a->rs2, a->vm); +} + +static inline bool vsm3c_check(DisasContext *s, arg_rmrr *a) +{ + return vsm3_check(s, a) && vext_check_ss(s, a->rd, a->rs2, a->vm); +} + +GEN_VV_UNMASKED_TRANS(vsm3me_vv, vsm3me_check, ZVKSH_EGS) +GEN_VI_UNMASKED_TRANS(vsm3c_vi, vsm3c_check, ZVKSH_EGS) -- 2.41.0 From: Nazar Kazakov <nazar.kazakov@codethink.co.uk> This commit adds support for the Zvkg vector-crypto extension, which consists of the following instructions: * vgmul.vv * vghsh.vv Translation functions are defined in `target/riscv/insn_trans/trans_rvvk.c.inc` and helpers are defined in `target/riscv/vcrypto_helper.c`. Co-authored-by: Lawrence Hunter <lawrence.hunter@codethink.co.uk> [max.chou@sifive.com: Replaced vstart checking by TCG op] Signed-off-by: Lawrence Hunter <lawrence.hunter@codethink.co.uk> Signed-off-by: Nazar Kazakov <nazar.kazakov@codethink.co.uk> Signed-off-by: Max Chou <max.chou@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> [max.chou@sifive.com: Exposed x-zvkg property] [max.chou@sifive.com: Replaced uint by int for cross win32 build] Message-ID: <20230711165917.2629866-13-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu_cfg.h | 1 + target/riscv/helper.h | 3 + target/riscv/insn32.decode | 4 ++ target/riscv/cpu.c | 6 +- target/riscv/vcrypto_helper.c | 72 ++++++++++++++++++++++++ target/riscv/insn_trans/trans_rvvk.c.inc | 30 ++++++++++ 6 files changed, 114 insertions(+), 2 deletions(-) diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -XXX,XX +XXX,XX @@ struct RISCVCPUConfig { bool ext_zve64d; bool ext_zvbb; bool ext_zvbc; + bool ext_zvkg; bool ext_zvkned; bool ext_zvknha; bool ext_zvknhb; diff --git a/target/riscv/helper.h b/target/riscv/helper.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -XXX,XX +XXX,XX @@ DEF_HELPER_5(vsha2cl64_vv, void, ptr, ptr, ptr, env, i32) DEF_HELPER_5(vsm3me_vv, void, ptr, ptr, ptr, env, i32) DEF_HELPER_5(vsm3c_vi, void, ptr, ptr, i32, env, i32) + +DEF_HELPER_5(vghsh_vv, void, ptr, ptr, ptr, env, i32) +DEF_HELPER_4(vgmul_vv, void, ptr, ptr, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -XXX,XX +XXX,XX @@ vsha2cl_vv 101111 1 ..... ..... 010 ..... 1110111 @r_vm_1 # *** Zvksh vector crypto extension *** vsm3me_vv 100000 1 ..... ..... 010 ..... 1110111 @r_vm_1 vsm3c_vi 101011 1 ..... ..... 010 ..... 1110111 @r_vm_1 + +# *** Zvkg vector crypto extension *** +vghsh_vv 101100 1 ..... ..... 010 ..... 1110111 @r_vm_1 +vgmul_vv 101000 1 ..... 10001 010 ..... 1110111 @r2_vm_1 diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zvfbfwma, PRIV_VERSION_1_12_0, ext_zvfbfwma), ISA_EXT_DATA_ENTRY(zvfh, PRIV_VERSION_1_12_0, ext_zvfh), ISA_EXT_DATA_ENTRY(zvfhmin, PRIV_VERSION_1_12_0, ext_zvfhmin), + ISA_EXT_DATA_ENTRY(zvkg, PRIV_VERSION_1_12_0, ext_zvkg), ISA_EXT_DATA_ENTRY(zvkned, PRIV_VERSION_1_12_0, ext_zvkned), ISA_EXT_DATA_ENTRY(zvknha, PRIV_VERSION_1_12_0, ext_zvknha), ISA_EXT_DATA_ENTRY(zvknhb, PRIV_VERSION_1_12_0, ext_zvknhb), @@ -XXX,XX +XXX,XX @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp) * In principle Zve*x would also suffice here, were they supported * in qemu */ - if ((cpu->cfg.ext_zvbb || cpu->cfg.ext_zvkned || cpu->cfg.ext_zvknha || - cpu->cfg.ext_zvksh) && !cpu->cfg.ext_zve32f) { + if ((cpu->cfg.ext_zvbb || cpu->cfg.ext_zvkg || cpu->cfg.ext_zvkned || + cpu->cfg.ext_zvknha || cpu->cfg.ext_zvksh) && !cpu->cfg.ext_zve32f) { error_setg(errp, "Vector crypto extensions require V or Zve* extensions"); return; @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { /* Vector cryptography extensions */ DEFINE_PROP_BOOL("x-zvbb", RISCVCPU, cfg.ext_zvbb, false), DEFINE_PROP_BOOL("x-zvbc", RISCVCPU, cfg.ext_zvbc, false), + DEFINE_PROP_BOOL("x-zvkg", RISCVCPU, cfg.ext_zvkg, false), DEFINE_PROP_BOOL("x-zvkned", RISCVCPU, cfg.ext_zvkned, false), DEFINE_PROP_BOOL("x-zvknha", RISCVCPU, cfg.ext_zvknha, false), DEFINE_PROP_BOOL("x-zvknhb", RISCVCPU, cfg.ext_zvknhb, false), diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vcrypto_helper.c +++ b/target/riscv/vcrypto_helper.c @@ -XXX,XX +XXX,XX @@ void HELPER(vsm3c_vi)(void *vd_vptr, void *vs2_vptr, uint32_t uimm, vext_set_elems_1s(vd_vptr, vta, env->vl * esz, total_elems * esz); env->vstart = 0; } + +void HELPER(vghsh_vv)(void *vd_vptr, void *vs1_vptr, void *vs2_vptr, + CPURISCVState *env, uint32_t desc) +{ + uint64_t *vd = vd_vptr; + uint64_t *vs1 = vs1_vptr; + uint64_t *vs2 = vs2_vptr; + uint32_t vta = vext_vta(desc); + uint32_t total_elems = vext_get_total_elems(env, desc, 4); + + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { + uint64_t Y[2] = {vd[i * 2 + 0], vd[i * 2 + 1]}; + uint64_t H[2] = {brev8(vs2[i * 2 + 0]), brev8(vs2[i * 2 + 1])}; + uint64_t X[2] = {vs1[i * 2 + 0], vs1[i * 2 + 1]}; + uint64_t Z[2] = {0, 0}; + + uint64_t S[2] = {brev8(Y[0] ^ X[0]), brev8(Y[1] ^ X[1])}; + + for (int j = 0; j < 128; j++) { + if ((S[j / 64] >> (j % 64)) & 1) { + Z[0] ^= H[0]; + Z[1] ^= H[1]; + } + bool reduce = ((H[1] >> 63) & 1); + H[1] = H[1] << 1 | H[0] >> 63; + H[0] = H[0] << 1; + if (reduce) { + H[0] ^= 0x87; + } + } + + vd[i * 2 + 0] = brev8(Z[0]); + vd[i * 2 + 1] = brev8(Z[1]); + } + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vta, env->vl * 4, total_elems * 4); + env->vstart = 0; +} + +void HELPER(vgmul_vv)(void *vd_vptr, void *vs2_vptr, CPURISCVState *env, + uint32_t desc) +{ + uint64_t *vd = vd_vptr; + uint64_t *vs2 = vs2_vptr; + uint32_t vta = vext_vta(desc); + uint32_t total_elems = vext_get_total_elems(env, desc, 4); + + for (uint32_t i = env->vstart / 4; i < env->vl / 4; i++) { + uint64_t Y[2] = {brev8(vd[i * 2 + 0]), brev8(vd[i * 2 + 1])}; + uint64_t H[2] = {brev8(vs2[i * 2 + 0]), brev8(vs2[i * 2 + 1])}; + uint64_t Z[2] = {0, 0}; + + for (int j = 0; j < 128; j++) { + if ((Y[j / 64] >> (j % 64)) & 1) { + Z[0] ^= H[0]; + Z[1] ^= H[1]; + } + bool reduce = ((H[1] >> 63) & 1); + H[1] = H[1] << 1 | H[0] >> 63; + H[0] = H[0] << 1; + if (reduce) { + H[0] ^= 0x87; + } + } + + vd[i * 2 + 0] = brev8(Z[0]); + vd[i * 2 + 1] = brev8(Z[1]); + } + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vta, env->vl * 4, total_elems * 4); + env->vstart = 0; +} diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvvk.c.inc +++ b/target/riscv/insn_trans/trans_rvvk.c.inc @@ -XXX,XX +XXX,XX @@ static inline bool vsm3c_check(DisasContext *s, arg_rmrr *a) GEN_VV_UNMASKED_TRANS(vsm3me_vv, vsm3me_check, ZVKSH_EGS) GEN_VI_UNMASKED_TRANS(vsm3c_vi, vsm3c_check, ZVKSH_EGS) + +/* + * Zvkg + */ + +#define ZVKG_EGS 4 + +static bool vgmul_check(DisasContext *s, arg_rmr *a) +{ + int egw_bytes = ZVKG_EGS << s->sew; + return s->cfg_ptr->ext_zvkg == true && + vext_check_isa_ill(s) && + require_rvv(s) && + MAXSZ(s) >= egw_bytes && + vext_check_ss(s, a->rd, a->rs2, a->vm) && + s->sew == MO_32; +} + +GEN_V_UNMASKED_TRANS(vgmul_vv, vgmul_check, ZVKG_EGS) + +static bool vghsh_check(DisasContext *s, arg_rmrr *a) +{ + int egw_bytes = ZVKG_EGS << s->sew; + return s->cfg_ptr->ext_zvkg == true && + opivv_check(s, a) && + MAXSZ(s) >= egw_bytes && + s->sew == MO_32; +} + +GEN_VV_UNMASKED_TRANS(vghsh_vv, vghsh_check, ZVKG_EGS) -- 2.41.0 From: Max Chou <max.chou@sifive.com> Allows sharing of sm4_subword between different targets. Signed-off-by: Max Chou <max.chou@sifive.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Max Chou <max.chou@sifive.com> Message-ID: <20230711165917.2629866-14-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- include/crypto/sm4.h | 8 ++++++++ target/arm/tcg/crypto_helper.c | 10 ++-------- 2 files changed, 10 insertions(+), 8 deletions(-) diff --git a/include/crypto/sm4.h b/include/crypto/sm4.h index XXXXXXX..XXXXXXX 100644 --- a/include/crypto/sm4.h +++ b/include/crypto/sm4.h @@ -XXX,XX +XXX,XX @@ extern const uint8_t sm4_sbox[256]; +static inline uint32_t sm4_subword(uint32_t word) +{ + return sm4_sbox[word & 0xff] | + sm4_sbox[(word >> 8) & 0xff] << 8 | + sm4_sbox[(word >> 16) & 0xff] << 16 | + sm4_sbox[(word >> 24) & 0xff] << 24; +} + #endif diff --git a/target/arm/tcg/crypto_helper.c b/target/arm/tcg/crypto_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/arm/tcg/crypto_helper.c +++ b/target/arm/tcg/crypto_helper.c @@ -XXX,XX +XXX,XX @@ static void do_crypto_sm4e(uint64_t *rd, uint64_t *rn, uint64_t *rm) CR_ST_WORD(d, (i + 3) % 4) ^ CR_ST_WORD(n, i); - t = sm4_sbox[t & 0xff] | - sm4_sbox[(t >> 8) & 0xff] << 8 | - sm4_sbox[(t >> 16) & 0xff] << 16 | - sm4_sbox[(t >> 24) & 0xff] << 24; + t = sm4_subword(t); CR_ST_WORD(d, i) ^= t ^ rol32(t, 2) ^ rol32(t, 10) ^ rol32(t, 18) ^ rol32(t, 24); @@ -XXX,XX +XXX,XX @@ static void do_crypto_sm4ekey(uint64_t *rd, uint64_t *rn, uint64_t *rm) CR_ST_WORD(d, (i + 3) % 4) ^ CR_ST_WORD(m, i); - t = sm4_sbox[t & 0xff] | - sm4_sbox[(t >> 8) & 0xff] << 8 | - sm4_sbox[(t >> 16) & 0xff] << 16 | - sm4_sbox[(t >> 24) & 0xff] << 24; + t = sm4_subword(t); CR_ST_WORD(d, i) ^= t ^ rol32(t, 13) ^ rol32(t, 23); } -- 2.41.0 From: Max Chou <max.chou@sifive.com> Adds sm4_ck constant for use in sm4 cryptography across different targets. Signed-off-by: Max Chou <max.chou@sifive.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Signed-off-by: Max Chou <max.chou@sifive.com> Message-ID: <20230711165917.2629866-15-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- include/crypto/sm4.h | 1 + crypto/sm4.c | 10 ++++++++++ 2 files changed, 11 insertions(+) diff --git a/include/crypto/sm4.h b/include/crypto/sm4.h index XXXXXXX..XXXXXXX 100644 --- a/include/crypto/sm4.h +++ b/include/crypto/sm4.h @@ -XXX,XX +XXX,XX @@ #define QEMU_SM4_H extern const uint8_t sm4_sbox[256]; +extern const uint32_t sm4_ck[32]; static inline uint32_t sm4_subword(uint32_t word) { diff --git a/crypto/sm4.c b/crypto/sm4.c index XXXXXXX..XXXXXXX 100644 --- a/crypto/sm4.c +++ b/crypto/sm4.c @@ -XXX,XX +XXX,XX @@ uint8_t const sm4_sbox[] = { 0x79, 0xee, 0x5f, 0x3e, 0xd7, 0xcb, 0x39, 0x48, }; +uint32_t const sm4_ck[] = { + 0x00070e15, 0x1c232a31, 0x383f464d, 0x545b6269, + 0x70777e85, 0x8c939aa1, 0xa8afb6bd, 0xc4cbd2d9, + 0xe0e7eef5, 0xfc030a11, 0x181f262d, 0x343b4249, + 0x50575e65, 0x6c737a81, 0x888f969d, 0xa4abb2b9, + 0xc0c7ced5, 0xdce3eaf1, 0xf8ff060d, 0x141b2229, + 0x30373e45, 0x4c535a61, 0x686f767d, 0x848b9299, + 0xa0a7aeb5, 0xbcc3cad1, 0xd8dfe6ed, 0xf4fb0209, + 0x10171e25, 0x2c333a41, 0x484f565d, 0x646b7279 +}; -- 2.41.0 From: Max Chou <max.chou@sifive.com> This commit adds support for the Zvksed vector-crypto extension, which consists of the following instructions: * vsm4k.vi * vsm4r.[vv,vs] Translation functions are defined in `target/riscv/insn_trans/trans_rvvk.c.inc` and helpers are defined in `target/riscv/vcrypto_helper.c`. Signed-off-by: Max Chou <max.chou@sifive.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> [lawrence.hunter@codethink.co.uk: Moved SM4 functions from crypto_helper.c to vcrypto_helper.c] [nazar.kazakov@codethink.co.uk: Added alignment checks, refactored code to use macros, and minor style changes] Signed-off-by: Max Chou <max.chou@sifive.com> Message-ID: <20230711165917.2629866-16-max.chou@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu_cfg.h | 1 + target/riscv/helper.h | 4 + target/riscv/insn32.decode | 5 + target/riscv/cpu.c | 5 +- target/riscv/vcrypto_helper.c | 127 +++++++++++++++++++++++ target/riscv/insn_trans/trans_rvvk.c.inc | 43 ++++++++ 6 files changed, 184 insertions(+), 1 deletion(-) diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -XXX,XX +XXX,XX @@ struct RISCVCPUConfig { bool ext_zvkned; bool ext_zvknha; bool ext_zvknhb; + bool ext_zvksed; bool ext_zvksh; bool ext_zmmul; bool ext_zvfbfmin; diff --git a/target/riscv/helper.h b/target/riscv/helper.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -XXX,XX +XXX,XX @@ DEF_HELPER_5(vsm3c_vi, void, ptr, ptr, i32, env, i32) DEF_HELPER_5(vghsh_vv, void, ptr, ptr, ptr, env, i32) DEF_HELPER_4(vgmul_vv, void, ptr, ptr, env, i32) + +DEF_HELPER_5(vsm4k_vi, void, ptr, ptr, i32, env, i32) +DEF_HELPER_4(vsm4r_vv, void, ptr, ptr, env, i32) +DEF_HELPER_4(vsm4r_vs, void, ptr, ptr, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -XXX,XX +XXX,XX @@ vsm3c_vi 101011 1 ..... ..... 010 ..... 1110111 @r_vm_1 # *** Zvkg vector crypto extension *** vghsh_vv 101100 1 ..... ..... 010 ..... 1110111 @r_vm_1 vgmul_vv 101000 1 ..... 10001 010 ..... 1110111 @r2_vm_1 + +# *** Zvksed vector crypto extension *** +vsm4k_vi 100001 1 ..... ..... 010 ..... 1110111 @r_vm_1 +vsm4r_vv 101000 1 ..... 10000 010 ..... 1110111 @r2_vm_1 +vsm4r_vs 101001 1 ..... 10000 010 ..... 1110111 @r2_vm_1 diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zvkned, PRIV_VERSION_1_12_0, ext_zvkned), ISA_EXT_DATA_ENTRY(zvknha, PRIV_VERSION_1_12_0, ext_zvknha), ISA_EXT_DATA_ENTRY(zvknhb, PRIV_VERSION_1_12_0, ext_zvknhb), + ISA_EXT_DATA_ENTRY(zvksed, PRIV_VERSION_1_12_0, ext_zvksed), ISA_EXT_DATA_ENTRY(zvksh, PRIV_VERSION_1_12_0, ext_zvksh), ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx), ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin), @@ -XXX,XX +XXX,XX @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp) * in qemu */ if ((cpu->cfg.ext_zvbb || cpu->cfg.ext_zvkg || cpu->cfg.ext_zvkned || - cpu->cfg.ext_zvknha || cpu->cfg.ext_zvksh) && !cpu->cfg.ext_zve32f) { + cpu->cfg.ext_zvknha || cpu->cfg.ext_zvksed || cpu->cfg.ext_zvksh) && + !cpu->cfg.ext_zve32f) { error_setg(errp, "Vector crypto extensions require V or Zve* extensions"); return; @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { DEFINE_PROP_BOOL("x-zvkned", RISCVCPU, cfg.ext_zvkned, false), DEFINE_PROP_BOOL("x-zvknha", RISCVCPU, cfg.ext_zvknha, false), DEFINE_PROP_BOOL("x-zvknhb", RISCVCPU, cfg.ext_zvknhb, false), + DEFINE_PROP_BOOL("x-zvksed", RISCVCPU, cfg.ext_zvksed, false), DEFINE_PROP_BOOL("x-zvksh", RISCVCPU, cfg.ext_zvksh, false), DEFINE_PROP_END_OF_LIST(), diff --git a/target/riscv/vcrypto_helper.c b/target/riscv/vcrypto_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/vcrypto_helper.c +++ b/target/riscv/vcrypto_helper.c @@ -XXX,XX +XXX,XX @@ #include "cpu.h" #include "crypto/aes.h" #include "crypto/aes-round.h" +#include "crypto/sm4.h" #include "exec/memop.h" #include "exec/exec-all.h" #include "exec/helper-proto.h" @@ -XXX,XX +XXX,XX @@ void HELPER(vgmul_vv)(void *vd_vptr, void *vs2_vptr, CPURISCVState *env, vext_set_elems_1s(vd, vta, env->vl * 4, total_elems * 4); env->vstart = 0; } + +void HELPER(vsm4k_vi)(void *vd, void *vs2, uint32_t uimm5, CPURISCVState *env, + uint32_t desc) +{ + const uint32_t egs = 4; + uint32_t rnd = uimm5 & 0x7; + uint32_t group_start = env->vstart / egs; + uint32_t group_end = env->vl / egs; + uint32_t esz = sizeof(uint32_t); + uint32_t total_elems = vext_get_total_elems(env, desc, esz); + + for (uint32_t i = group_start; i < group_end; ++i) { + uint32_t vstart = i * egs; + uint32_t vend = (i + 1) * egs; + uint32_t rk[4] = {0}; + uint32_t tmp[8] = {0}; + + for (uint32_t j = vstart; j < vend; ++j) { + rk[j - vstart] = *((uint32_t *)vs2 + H4(j)); + } + + for (uint32_t j = 0; j < egs; ++j) { + tmp[j] = rk[j]; + } + + for (uint32_t j = 0; j < egs; ++j) { + uint32_t b, s; + b = tmp[j + 1] ^ tmp[j + 2] ^ tmp[j + 3] ^ sm4_ck[rnd * 4 + j]; + + s = sm4_subword(b); + + tmp[j + 4] = tmp[j] ^ (s ^ rol32(s, 13) ^ rol32(s, 23)); + } + + for (uint32_t j = vstart; j < vend; ++j) { + *((uint32_t *)vd + H4(j)) = tmp[egs + (j - vstart)]; + } + } + + env->vstart = 0; + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vext_vta(desc), env->vl * esz, total_elems * esz); +} + +static void do_sm4_round(uint32_t *rk, uint32_t *buf) +{ + const uint32_t egs = 4; + uint32_t s, b; + + for (uint32_t j = egs; j < egs * 2; ++j) { + b = buf[j - 3] ^ buf[j - 2] ^ buf[j - 1] ^ rk[j - 4]; + + s = sm4_subword(b); + + buf[j] = buf[j - 4] ^ (s ^ rol32(s, 2) ^ rol32(s, 10) ^ rol32(s, 18) ^ + rol32(s, 24)); + } +} + +void HELPER(vsm4r_vv)(void *vd, void *vs2, CPURISCVState *env, uint32_t desc) +{ + const uint32_t egs = 4; + uint32_t group_start = env->vstart / egs; + uint32_t group_end = env->vl / egs; + uint32_t esz = sizeof(uint32_t); + uint32_t total_elems = vext_get_total_elems(env, desc, esz); + + for (uint32_t i = group_start; i < group_end; ++i) { + uint32_t vstart = i * egs; + uint32_t vend = (i + 1) * egs; + uint32_t rk[4] = {0}; + uint32_t tmp[8] = {0}; + + for (uint32_t j = vstart; j < vend; ++j) { + rk[j - vstart] = *((uint32_t *)vs2 + H4(j)); + } + + for (uint32_t j = vstart; j < vend; ++j) { + tmp[j - vstart] = *((uint32_t *)vd + H4(j)); + } + + do_sm4_round(rk, tmp); + + for (uint32_t j = vstart; j < vend; ++j) { + *((uint32_t *)vd + H4(j)) = tmp[egs + (j - vstart)]; + } + } + + env->vstart = 0; + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vext_vta(desc), env->vl * esz, total_elems * esz); +} + +void HELPER(vsm4r_vs)(void *vd, void *vs2, CPURISCVState *env, uint32_t desc) +{ + const uint32_t egs = 4; + uint32_t group_start = env->vstart / egs; + uint32_t group_end = env->vl / egs; + uint32_t esz = sizeof(uint32_t); + uint32_t total_elems = vext_get_total_elems(env, desc, esz); + + for (uint32_t i = group_start; i < group_end; ++i) { + uint32_t vstart = i * egs; + uint32_t vend = (i + 1) * egs; + uint32_t rk[4] = {0}; + uint32_t tmp[8] = {0}; + + for (uint32_t j = 0; j < egs; ++j) { + rk[j] = *((uint32_t *)vs2 + H4(j)); + } + + for (uint32_t j = vstart; j < vend; ++j) { + tmp[j - vstart] = *((uint32_t *)vd + H4(j)); + } + + do_sm4_round(rk, tmp); + + for (uint32_t j = vstart; j < vend; ++j) { + *((uint32_t *)vd + H4(j)) = tmp[egs + (j - vstart)]; + } + } + + env->vstart = 0; + /* set tail elements to 1s */ + vext_set_elems_1s(vd, vext_vta(desc), env->vl * esz, total_elems * esz); +} diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_trans/trans_rvvk.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvvk.c.inc +++ b/target/riscv/insn_trans/trans_rvvk.c.inc @@ -XXX,XX +XXX,XX @@ static bool vghsh_check(DisasContext *s, arg_rmrr *a) } GEN_VV_UNMASKED_TRANS(vghsh_vv, vghsh_check, ZVKG_EGS) + +/* + * Zvksed + */ + +#define ZVKSED_EGS 4 + +static bool zvksed_check(DisasContext *s) +{ + int egw_bytes = ZVKSED_EGS << s->sew; + return s->cfg_ptr->ext_zvksed == true && + require_rvv(s) && + vext_check_isa_ill(s) && + MAXSZ(s) >= egw_bytes && + s->sew == MO_32; +} + +static bool vsm4k_vi_check(DisasContext *s, arg_rmrr *a) +{ + return zvksed_check(s) && + require_align(a->rd, s->lmul) && + require_align(a->rs2, s->lmul); +} + +GEN_VI_UNMASKED_TRANS(vsm4k_vi, vsm4k_vi_check, ZVKSED_EGS) + +static bool vsm4r_vv_check(DisasContext *s, arg_rmr *a) +{ + return zvksed_check(s) && + require_align(a->rd, s->lmul) && + require_align(a->rs2, s->lmul); +} + +GEN_V_UNMASKED_TRANS(vsm4r_vv, vsm4r_vv_check, ZVKSED_EGS) + +static bool vsm4r_vs_check(DisasContext *s, arg_rmr *a) +{ + return zvksed_check(s) && + !is_overlapped(a->rd, 1 << MAX(s->lmul, 0), a->rs2, 1) && + require_align(a->rd, s->lmul); +} + +GEN_V_UNMASKED_TRANS(vsm4r_vs, vsm4r_vs_check, ZVKSED_EGS) -- 2.41.0 From: Rob Bradford <rbradford@rivosinc.com> These are WARL fields - zero out the bits for unavailable counters and special case the TM bit in mcountinhibit which is hardwired to zero. This patch achieves this by modifying the value written so that any use of the field will see the correctly masked bits. Tested by modifying OpenSBI to write max value to these CSRs and upon subsequent read the appropriate number of bits for number of PMUs is enabled and the TM bit is zero in mcountinhibit. Signed-off-by: Rob Bradford <rbradford@rivosinc.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Message-ID: <20230802124906.24197-1-rbradford@rivosinc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/csr.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -XXX,XX +XXX,XX @@ static RISCVException write_mcountinhibit(CPURISCVState *env, int csrno, { int cidx; PMUCTRState *counter; + RISCVCPU *cpu = env_archcpu(env); - env->mcountinhibit = val; + /* WARL register - disable unavailable counters; TM bit is always 0 */ + env->mcountinhibit = + val & (cpu->pmu_avail_ctrs | COUNTEREN_CY | COUNTEREN_IR); /* Check if any other counter is also monitoring cycles/instructions */ for (cidx = 0; cidx < RV_MAX_MHPMCOUNTERS; cidx++) { @@ -XXX,XX +XXX,XX @@ static RISCVException read_mcounteren(CPURISCVState *env, int csrno, static RISCVException write_mcounteren(CPURISCVState *env, int csrno, target_ulong val) { - env->mcounteren = val; + RISCVCPU *cpu = env_archcpu(env); + + /* WARL register - disable unavailable counters */ + env->mcounteren = val & (cpu->pmu_avail_ctrs | COUNTEREN_CY | COUNTEREN_TM | + COUNTEREN_IR); return RISCV_EXCP_NONE; } -- 2.41.0 From: Jason Chien <jason.chien@sifive.com> RVA23 Profiles states: The RVA23 profiles are intended to be used for 64-bit application processors that will run rich OS stacks from standard binary OS distributions and with a substantial number of third-party binary user applications that will be supported over a considerable length of time in the field. The chapter 4 of the unprivileged spec introduces the Zihintntl extension and Zihintntl is a mandatory extension presented in RVA23 Profiles, whose purpose is to enable application and operating system portability across different implementations. Thus the DTS should contain the Zihintntl ISA string in order to pass to software. The unprivileged spec states: Like any HINTs, these instructions may be freely ignored. Hence, although they are described in terms of cache-based memory hierarchies, they do not mandate the provision of caches. These instructions are encoded with non-used opcode, e.g. ADD x0, x0, x2, which QEMU already supports, and QEMU does not emulate cache. Therefore these instructions can be considered as a no-op, and we only need to add a new property for the Zihintntl extension. Reviewed-by: Frank Chang <frank.chang@sifive.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Jason Chien <jason.chien@sifive.com> Message-ID: <20230726074049.19505-2-jason.chien@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu_cfg.h | 1 + target/riscv/cpu.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -XXX,XX +XXX,XX @@ struct RISCVCPUConfig { bool ext_icbom; bool ext_icboz; bool ext_zicond; + bool ext_zihintntl; bool ext_zihintpause; bool ext_smstateen; bool ext_sstc; diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static const struct isa_ext_data isa_edata_arr[] = { ISA_EXT_DATA_ENTRY(zicond, PRIV_VERSION_1_12_0, ext_zicond), ISA_EXT_DATA_ENTRY(zicsr, PRIV_VERSION_1_10_0, ext_icsr), ISA_EXT_DATA_ENTRY(zifencei, PRIV_VERSION_1_10_0, ext_ifencei), + ISA_EXT_DATA_ENTRY(zihintntl, PRIV_VERSION_1_10_0, ext_zihintntl), ISA_EXT_DATA_ENTRY(zihintpause, PRIV_VERSION_1_10_0, ext_zihintpause), ISA_EXT_DATA_ENTRY(zmmul, PRIV_VERSION_1_12_0, ext_zmmul), ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs), @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { DEFINE_PROP_BOOL("sscofpmf", RISCVCPU, cfg.ext_sscofpmf, false), DEFINE_PROP_BOOL("Zifencei", RISCVCPU, cfg.ext_ifencei, true), DEFINE_PROP_BOOL("Zicsr", RISCVCPU, cfg.ext_icsr, true), + DEFINE_PROP_BOOL("Zihintntl", RISCVCPU, cfg.ext_zihintntl, true), DEFINE_PROP_BOOL("Zihintpause", RISCVCPU, cfg.ext_zihintpause, true), DEFINE_PROP_BOOL("Zawrs", RISCVCPU, cfg.ext_zawrs, true), DEFINE_PROP_BOOL("Zfa", RISCVCPU, cfg.ext_zfa, true), -- 2.41.0 From: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Commit a47842d ("riscv: Add support for the Zfa extension") implemented the zfa extension. However, it has some typos for fleq.d and fltq.d. Both of them misused the fltq.s helper function. Fixes: a47842d ("riscv: Add support for the Zfa extension") Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn> Message-ID: <20230728003906.768-1-zhiwei_liu@linux.alibaba.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/insn_trans/trans_rvzfa.c.inc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvzfa.c.inc b/target/riscv/insn_trans/trans_rvzfa.c.inc index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/insn_trans/trans_rvzfa.c.inc +++ b/target/riscv/insn_trans/trans_rvzfa.c.inc @@ -XXX,XX +XXX,XX @@ bool trans_fleq_d(DisasContext *ctx, arg_fleq_d *a) TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); - gen_helper_fltq_s(dest, cpu_env, src1, src2); + gen_helper_fleq_d(dest, cpu_env, src1, src2); gen_set_gpr(ctx, a->rd, dest); return true; } @@ -XXX,XX +XXX,XX @@ bool trans_fltq_d(DisasContext *ctx, arg_fltq_d *a) TCGv_i64 src1 = get_fpr_hs(ctx, a->rs1); TCGv_i64 src2 = get_fpr_hs(ctx, a->rs2); - gen_helper_fltq_s(dest, cpu_env, src1, src2); + gen_helper_fltq_d(dest, cpu_env, src1, src2); gen_set_gpr(ctx, a->rd, dest); return true; } -- 2.41.0 From: Jason Chien <jason.chien@sifive.com> When writing the upper mtime, we should keep the original lower mtime whose value is given by cpu_riscv_read_rtc() instead of cpu_riscv_read_rtc_raw(). The same logic applies to writes to lower mtime. Signed-off-by: Jason Chien <jason.chien@sifive.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20230728082502.26439-1-jason.chien@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- hw/intc/riscv_aclint.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/hw/intc/riscv_aclint.c b/hw/intc/riscv_aclint.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/riscv_aclint.c +++ b/hw/intc/riscv_aclint.c @@ -XXX,XX +XXX,XX @@ static void riscv_aclint_mtimer_write(void *opaque, hwaddr addr, return; } else if (addr == mtimer->time_base || addr == mtimer->time_base + 4) { uint64_t rtc_r = cpu_riscv_read_rtc_raw(mtimer->timebase_freq); + uint64_t rtc = cpu_riscv_read_rtc(mtimer); if (addr == mtimer->time_base) { if (size == 4) { /* time_lo for RV32/RV64 */ - mtimer->time_delta = ((rtc_r & ~0xFFFFFFFFULL) | value) - rtc_r; + mtimer->time_delta = ((rtc & ~0xFFFFFFFFULL) | value) - rtc_r; } else { /* time for RV64 */ mtimer->time_delta = value - rtc_r; @@ -XXX,XX +XXX,XX @@ static void riscv_aclint_mtimer_write(void *opaque, hwaddr addr, } else { if (size == 4) { /* time_hi for RV32/RV64 */ - mtimer->time_delta = (value << 32 | (rtc_r & 0xFFFFFFFF)) - rtc_r; + mtimer->time_delta = (value << 32 | (rtc & 0xFFFFFFFF)) - rtc_r; } else { qemu_log_mask(LOG_GUEST_ERROR, "aclint-mtimer: invalid time_hi write: %08x", -- 2.41.0 From: Jason Chien <jason.chien@sifive.com> The variables whose values are given by cpu_riscv_read_rtc() should be named "rtc". The variables whose value are given by cpu_riscv_read_rtc_raw() should be named "rtc_r". Signed-off-by: Jason Chien <jason.chien@sifive.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20230728082502.26439-2-jason.chien@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- hw/intc/riscv_aclint.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/intc/riscv_aclint.c b/hw/intc/riscv_aclint.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/riscv_aclint.c +++ b/hw/intc/riscv_aclint.c @@ -XXX,XX +XXX,XX @@ static void riscv_aclint_mtimer_write_timecmp(RISCVAclintMTimerState *mtimer, uint64_t next; uint64_t diff; - uint64_t rtc_r = cpu_riscv_read_rtc(mtimer); + uint64_t rtc = cpu_riscv_read_rtc(mtimer); /* Compute the relative hartid w.r.t the socket */ hartid = hartid - mtimer->hartid_base; mtimer->timecmp[hartid] = value; - if (mtimer->timecmp[hartid] <= rtc_r) { + if (mtimer->timecmp[hartid] <= rtc) { /* * If we're setting an MTIMECMP value in the "past", * immediately raise the timer interrupt @@ -XXX,XX +XXX,XX @@ static void riscv_aclint_mtimer_write_timecmp(RISCVAclintMTimerState *mtimer, /* otherwise, set up the future timer interrupt */ qemu_irq_lower(mtimer->timer_irqs[hartid]); - diff = mtimer->timecmp[hartid] - rtc_r; + diff = mtimer->timecmp[hartid] - rtc; /* back to ns (note args switched in muldiv64) */ uint64_t ns_diff = muldiv64(diff, NANOSECONDS_PER_SECOND, timebase_freq); -- 2.41.0 From: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> We should not use types dependend on host arch for target_ucontext. This bug is found when run rv32 applications. Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20230811055438.1945-1-zhiwei_liu@linux.alibaba.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- linux-user/riscv/signal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/linux-user/riscv/signal.c b/linux-user/riscv/signal.c index XXXXXXX..XXXXXXX 100644 --- a/linux-user/riscv/signal.c +++ b/linux-user/riscv/signal.c @@ -XXX,XX +XXX,XX @@ struct target_sigcontext { }; /* cf. riscv-linux:arch/riscv/include/uapi/asm/ptrace.h */ struct target_ucontext { - unsigned long uc_flags; - struct target_ucontext *uc_link; + abi_ulong uc_flags; + abi_ptr uc_link; target_stack_t uc_stack; target_sigset_t uc_sigmask; uint8_t __unused[1024 / 8 - sizeof(target_sigset_t)]; -- 2.41.0 From: Yong-Xuan Wang <yongxuan.wang@sifive.com> In this patch, we create the APLIC and IMSIC FDT helper functions and remove M mode AIA devices when using KVM acceleration. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Jim Shu <jim.shu@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Message-ID: <20230727102439.22554-2-yongxuan.wang@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- hw/riscv/virt.c | 290 +++++++++++++++++++++++------------------------- 1 file changed, 137 insertions(+), 153 deletions(-) diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index XXXXXXX..XXXXXXX 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -XXX,XX +XXX,XX @@ static uint32_t imsic_num_bits(uint32_t count) return ret; } -static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, - uint32_t *phandle, uint32_t *intc_phandles, - uint32_t *msi_m_phandle, uint32_t *msi_s_phandle) +static void create_fdt_one_imsic(RISCVVirtState *s, hwaddr base_addr, + uint32_t *intc_phandles, uint32_t msi_phandle, + bool m_mode, uint32_t imsic_guest_bits) { int cpu, socket; char *imsic_name; MachineState *ms = MACHINE(s); int socket_count = riscv_socket_count(ms); - uint32_t imsic_max_hart_per_socket, imsic_guest_bits; + uint32_t imsic_max_hart_per_socket; uint32_t *imsic_cells, *imsic_regs, imsic_addr, imsic_size; - *msi_m_phandle = (*phandle)++; - *msi_s_phandle = (*phandle)++; imsic_cells = g_new0(uint32_t, ms->smp.cpus * 2); imsic_regs = g_new0(uint32_t, socket_count * 4); - /* M-level IMSIC node */ for (cpu = 0; cpu < ms->smp.cpus; cpu++) { imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); - imsic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_EXT); + imsic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); } - imsic_max_hart_per_socket = 0; - for (socket = 0; socket < socket_count; socket++) { - imsic_addr = memmap[VIRT_IMSIC_M].base + - socket * VIRT_IMSIC_GROUP_MAX_SIZE; - imsic_size = IMSIC_HART_SIZE(0) * s->soc[socket].num_harts; - imsic_regs[socket * 4 + 0] = 0; - imsic_regs[socket * 4 + 1] = cpu_to_be32(imsic_addr); - imsic_regs[socket * 4 + 2] = 0; - imsic_regs[socket * 4 + 3] = cpu_to_be32(imsic_size); - if (imsic_max_hart_per_socket < s->soc[socket].num_harts) { - imsic_max_hart_per_socket = s->soc[socket].num_harts; - } - } - imsic_name = g_strdup_printf("/soc/imsics@%lx", - (unsigned long)memmap[VIRT_IMSIC_M].base); - qemu_fdt_add_subnode(ms->fdt, imsic_name); - qemu_fdt_setprop_string(ms->fdt, imsic_name, "compatible", - "riscv,imsics"); - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "#interrupt-cells", - FDT_IMSIC_INT_CELLS); - qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", - NULL, 0); - qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", - NULL, 0); - qemu_fdt_setprop(ms->fdt, imsic_name, "interrupts-extended", - imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2); - qemu_fdt_setprop(ms->fdt, imsic_name, "reg", imsic_regs, - socket_count * sizeof(uint32_t) * 4); - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,num-ids", - VIRT_IRQCHIP_NUM_MSIS); - if (socket_count > 1) { - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,hart-index-bits", - imsic_num_bits(imsic_max_hart_per_socket)); - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-bits", - imsic_num_bits(socket_count)); - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-shift", - IMSIC_MMIO_GROUP_MIN_SHIFT); - } - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", *msi_m_phandle); - - g_free(imsic_name); - /* S-level IMSIC node */ - for (cpu = 0; cpu < ms->smp.cpus; cpu++) { - imsic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); - imsic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_S_EXT); - } - imsic_guest_bits = imsic_num_bits(s->aia_guests + 1); imsic_max_hart_per_socket = 0; for (socket = 0; socket < socket_count; socket++) { - imsic_addr = memmap[VIRT_IMSIC_S].base + - socket * VIRT_IMSIC_GROUP_MAX_SIZE; + imsic_addr = base_addr + socket * VIRT_IMSIC_GROUP_MAX_SIZE; imsic_size = IMSIC_HART_SIZE(imsic_guest_bits) * s->soc[socket].num_harts; imsic_regs[socket * 4 + 0] = 0; @@ -XXX,XX +XXX,XX @@ static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, imsic_max_hart_per_socket = s->soc[socket].num_harts; } } - imsic_name = g_strdup_printf("/soc/imsics@%lx", - (unsigned long)memmap[VIRT_IMSIC_S].base); + + imsic_name = g_strdup_printf("/soc/imsics@%lx", (unsigned long)base_addr); qemu_fdt_add_subnode(ms->fdt, imsic_name); - qemu_fdt_setprop_string(ms->fdt, imsic_name, "compatible", - "riscv,imsics"); + qemu_fdt_setprop_string(ms->fdt, imsic_name, "compatible", "riscv,imsics"); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "#interrupt-cells", - FDT_IMSIC_INT_CELLS); - qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", - NULL, 0); - qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", - NULL, 0); + FDT_IMSIC_INT_CELLS); + qemu_fdt_setprop(ms->fdt, imsic_name, "interrupt-controller", NULL, 0); + qemu_fdt_setprop(ms->fdt, imsic_name, "msi-controller", NULL, 0); qemu_fdt_setprop(ms->fdt, imsic_name, "interrupts-extended", - imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2); + imsic_cells, ms->smp.cpus * sizeof(uint32_t) * 2); qemu_fdt_setprop(ms->fdt, imsic_name, "reg", imsic_regs, - socket_count * sizeof(uint32_t) * 4); + socket_count * sizeof(uint32_t) * 4); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,num-ids", - VIRT_IRQCHIP_NUM_MSIS); + VIRT_IRQCHIP_NUM_MSIS); + if (imsic_guest_bits) { qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,guest-index-bits", - imsic_guest_bits); + imsic_guest_bits); } + if (socket_count > 1) { qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,hart-index-bits", - imsic_num_bits(imsic_max_hart_per_socket)); + imsic_num_bits(imsic_max_hart_per_socket)); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-bits", - imsic_num_bits(socket_count)); + imsic_num_bits(socket_count)); qemu_fdt_setprop_cell(ms->fdt, imsic_name, "riscv,group-index-shift", - IMSIC_MMIO_GROUP_MIN_SHIFT); + IMSIC_MMIO_GROUP_MIN_SHIFT); } - qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", *msi_s_phandle); - g_free(imsic_name); + qemu_fdt_setprop_cell(ms->fdt, imsic_name, "phandle", msi_phandle); + g_free(imsic_name); g_free(imsic_regs); g_free(imsic_cells); } -static void create_fdt_socket_aplic(RISCVVirtState *s, - const MemMapEntry *memmap, int socket, - uint32_t msi_m_phandle, - uint32_t msi_s_phandle, - uint32_t *phandle, - uint32_t *intc_phandles, - uint32_t *aplic_phandles) +static void create_fdt_imsic(RISCVVirtState *s, const MemMapEntry *memmap, + uint32_t *phandle, uint32_t *intc_phandles, + uint32_t *msi_m_phandle, uint32_t *msi_s_phandle) +{ + *msi_m_phandle = (*phandle)++; + *msi_s_phandle = (*phandle)++; + + if (!kvm_enabled()) { + /* M-level IMSIC node */ + create_fdt_one_imsic(s, memmap[VIRT_IMSIC_M].base, intc_phandles, + *msi_m_phandle, true, 0); + } + + /* S-level IMSIC node */ + create_fdt_one_imsic(s, memmap[VIRT_IMSIC_S].base, intc_phandles, + *msi_s_phandle, false, + imsic_num_bits(s->aia_guests + 1)); + +} + +static void create_fdt_one_aplic(RISCVVirtState *s, int socket, + unsigned long aplic_addr, uint32_t aplic_size, + uint32_t msi_phandle, + uint32_t *intc_phandles, + uint32_t aplic_phandle, + uint32_t aplic_child_phandle, + bool m_mode) { int cpu; char *aplic_name; uint32_t *aplic_cells; - unsigned long aplic_addr; MachineState *ms = MACHINE(s); - uint32_t aplic_m_phandle, aplic_s_phandle; - aplic_m_phandle = (*phandle)++; - aplic_s_phandle = (*phandle)++; aplic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); - /* M-level APLIC node */ for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { aplic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); - aplic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_M_EXT); + aplic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); } - aplic_addr = memmap[VIRT_APLIC_M].base + - (memmap[VIRT_APLIC_M].size * socket); + aplic_name = g_strdup_printf("/soc/aplic@%lx", aplic_addr); qemu_fdt_add_subnode(ms->fdt, aplic_name); qemu_fdt_setprop_string(ms->fdt, aplic_name, "compatible", "riscv,aplic"); qemu_fdt_setprop_cell(ms->fdt, aplic_name, - "#interrupt-cells", FDT_APLIC_INT_CELLS); + "#interrupt-cells", FDT_APLIC_INT_CELLS); qemu_fdt_setprop(ms->fdt, aplic_name, "interrupt-controller", NULL, 0); + if (s->aia_type == VIRT_AIA_TYPE_APLIC) { qemu_fdt_setprop(ms->fdt, aplic_name, "interrupts-extended", - aplic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 2); + aplic_cells, + s->soc[socket].num_harts * sizeof(uint32_t) * 2); } else { - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", - msi_m_phandle); + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", msi_phandle); } + qemu_fdt_setprop_cells(ms->fdt, aplic_name, "reg", - 0x0, aplic_addr, 0x0, memmap[VIRT_APLIC_M].size); + 0x0, aplic_addr, 0x0, aplic_size); qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,num-sources", - VIRT_IRQCHIP_NUM_SOURCES); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,children", - aplic_s_phandle); - qemu_fdt_setprop_cells(ms->fdt, aplic_name, "riscv,delegate", - aplic_s_phandle, 0x1, VIRT_IRQCHIP_NUM_SOURCES); + VIRT_IRQCHIP_NUM_SOURCES); + + if (aplic_child_phandle) { + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,children", + aplic_child_phandle); + qemu_fdt_setprop_cells(ms->fdt, aplic_name, "riscv,delegate", + aplic_child_phandle, 0x1, + VIRT_IRQCHIP_NUM_SOURCES); + } + riscv_socket_fdt_write_id(ms, aplic_name, socket); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_m_phandle); + qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_phandle); + g_free(aplic_name); + g_free(aplic_cells); +} - /* S-level APLIC node */ - for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { - aplic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); - aplic_cells[cpu * 2 + 1] = cpu_to_be32(IRQ_S_EXT); +static void create_fdt_socket_aplic(RISCVVirtState *s, + const MemMapEntry *memmap, int socket, + uint32_t msi_m_phandle, + uint32_t msi_s_phandle, + uint32_t *phandle, + uint32_t *intc_phandles, + uint32_t *aplic_phandles) +{ + char *aplic_name; + unsigned long aplic_addr; + MachineState *ms = MACHINE(s); + uint32_t aplic_m_phandle, aplic_s_phandle; + + aplic_m_phandle = (*phandle)++; + aplic_s_phandle = (*phandle)++; + + if (!kvm_enabled()) { + /* M-level APLIC node */ + aplic_addr = memmap[VIRT_APLIC_M].base + + (memmap[VIRT_APLIC_M].size * socket); + create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_M].size, + msi_m_phandle, intc_phandles, + aplic_m_phandle, aplic_s_phandle, + true); } + + /* S-level APLIC node */ aplic_addr = memmap[VIRT_APLIC_S].base + (memmap[VIRT_APLIC_S].size * socket); + create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_S].size, + msi_s_phandle, intc_phandles, + aplic_s_phandle, 0, + false); + aplic_name = g_strdup_printf("/soc/aplic@%lx", aplic_addr); - qemu_fdt_add_subnode(ms->fdt, aplic_name); - qemu_fdt_setprop_string(ms->fdt, aplic_name, "compatible", "riscv,aplic"); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, - "#interrupt-cells", FDT_APLIC_INT_CELLS); - qemu_fdt_setprop(ms->fdt, aplic_name, "interrupt-controller", NULL, 0); - if (s->aia_type == VIRT_AIA_TYPE_APLIC) { - qemu_fdt_setprop(ms->fdt, aplic_name, "interrupts-extended", - aplic_cells, s->soc[socket].num_harts * sizeof(uint32_t) * 2); - } else { - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", - msi_s_phandle); - } - qemu_fdt_setprop_cells(ms->fdt, aplic_name, "reg", - 0x0, aplic_addr, 0x0, memmap[VIRT_APLIC_S].size); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "riscv,num-sources", - VIRT_IRQCHIP_NUM_SOURCES); - riscv_socket_fdt_write_id(ms, aplic_name, socket); - qemu_fdt_setprop_cell(ms->fdt, aplic_name, "phandle", aplic_s_phandle); if (!socket) { platform_bus_add_all_fdt_nodes(ms->fdt, aplic_name, @@ -XXX,XX +XXX,XX @@ static void create_fdt_socket_aplic(RISCVVirtState *s, g_free(aplic_name); - g_free(aplic_cells); aplic_phandles[socket] = aplic_s_phandle; } @@ -XXX,XX +XXX,XX @@ static DeviceState *virt_create_aia(RISCVVirtAIAType aia_type, int aia_guests, int i; hwaddr addr; uint32_t guest_bits; - DeviceState *aplic_m; - bool msimode = (aia_type == VIRT_AIA_TYPE_APLIC_IMSIC) ? true : false; + DeviceState *aplic_s = NULL; + DeviceState *aplic_m = NULL; + bool msimode = aia_type == VIRT_AIA_TYPE_APLIC_IMSIC; if (msimode) { - /* Per-socket M-level IMSICs */ - addr = memmap[VIRT_IMSIC_M].base + socket * VIRT_IMSIC_GROUP_MAX_SIZE; - for (i = 0; i < hart_count; i++) { - riscv_imsic_create(addr + i * IMSIC_HART_SIZE(0), - base_hartid + i, true, 1, - VIRT_IRQCHIP_NUM_MSIS); + if (!kvm_enabled()) { + /* Per-socket M-level IMSICs */ + addr = memmap[VIRT_IMSIC_M].base + + socket * VIRT_IMSIC_GROUP_MAX_SIZE; + for (i = 0; i < hart_count; i++) { + riscv_imsic_create(addr + i * IMSIC_HART_SIZE(0), + base_hartid + i, true, 1, + VIRT_IRQCHIP_NUM_MSIS); + } } /* Per-socket S-level IMSICs */ @@ -XXX,XX +XXX,XX @@ static DeviceState *virt_create_aia(RISCVVirtAIAType aia_type, int aia_guests, } } - /* Per-socket M-level APLIC */ - aplic_m = riscv_aplic_create( - memmap[VIRT_APLIC_M].base + socket * memmap[VIRT_APLIC_M].size, - memmap[VIRT_APLIC_M].size, - (msimode) ? 0 : base_hartid, - (msimode) ? 0 : hart_count, - VIRT_IRQCHIP_NUM_SOURCES, - VIRT_IRQCHIP_NUM_PRIO_BITS, - msimode, true, NULL); - - if (aplic_m) { - /* Per-socket S-level APLIC */ - riscv_aplic_create( - memmap[VIRT_APLIC_S].base + socket * memmap[VIRT_APLIC_S].size, - memmap[VIRT_APLIC_S].size, - (msimode) ? 0 : base_hartid, - (msimode) ? 0 : hart_count, - VIRT_IRQCHIP_NUM_SOURCES, - VIRT_IRQCHIP_NUM_PRIO_BITS, - msimode, false, aplic_m); + if (!kvm_enabled()) { + /* Per-socket M-level APLIC */ + aplic_m = riscv_aplic_create(memmap[VIRT_APLIC_M].base + + socket * memmap[VIRT_APLIC_M].size, + memmap[VIRT_APLIC_M].size, + (msimode) ? 0 : base_hartid, + (msimode) ? 0 : hart_count, + VIRT_IRQCHIP_NUM_SOURCES, + VIRT_IRQCHIP_NUM_PRIO_BITS, + msimode, true, NULL); } - return aplic_m; + /* Per-socket S-level APLIC */ + aplic_s = riscv_aplic_create(memmap[VIRT_APLIC_S].base + + socket * memmap[VIRT_APLIC_S].size, + memmap[VIRT_APLIC_S].size, + (msimode) ? 0 : base_hartid, + (msimode) ? 0 : hart_count, + VIRT_IRQCHIP_NUM_SOURCES, + VIRT_IRQCHIP_NUM_PRIO_BITS, + msimode, false, aplic_m); + + return kvm_enabled() ? aplic_s : aplic_m; } static void create_platform_bus(RISCVVirtState *s, DeviceState *irqchip) -- 2.41.0 From: Yong-Xuan Wang <yongxuan.wang@sifive.com> We check the in-kernel irqchip support when using KVM acceleration. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Jim Shu <jim.shu@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Message-ID: <20230727102439.22554-3-yongxuan.wang@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/kvm.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/kvm.c +++ b/target/riscv/kvm.c @@ -XXX,XX +XXX,XX @@ int kvm_arch_init(MachineState *ms, KVMState *s) int kvm_arch_irqchip_create(KVMState *s) { - return 0; + if (kvm_kernel_irqchip_split()) { + error_report("-machine kernel_irqchip=split is not supported on RISC-V."); + exit(1); + } + + /* + * We can create the VAIA using the newer device control API. + */ + return kvm_check_extension(s, KVM_CAP_DEVICE_CTRL); } int kvm_arch_process_async_events(CPUState *cs) -- 2.41.0 From: Yong-Xuan Wang <yongxuan.wang@sifive.com> We create a vAIA chip by using the KVM_DEV_TYPE_RISCV_AIA and then set up the chip with the KVM_DEV_RISCV_AIA_GRP_* APIs. We also extend KVM accelerator to specify the KVM AIA mode. The "riscv-aia" parameter is passed along with --accel in QEMU command-line. 1) "riscv-aia=emul": IMSIC is emulated by hypervisor 2) "riscv-aia=hwaccel": use hardware guest IMSIC 3) "riscv-aia=auto": use the hardware guest IMSICs whenever available otherwise we fallback to software emulation. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Jim Shu <jim.shu@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Message-ID: <20230727102439.22554-4-yongxuan.wang@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/kvm_riscv.h | 4 + target/riscv/kvm.c | 186 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 190 insertions(+) diff --git a/target/riscv/kvm_riscv.h b/target/riscv/kvm_riscv.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/kvm_riscv.h +++ b/target/riscv/kvm_riscv.h @@ -XXX,XX +XXX,XX @@ void kvm_riscv_init_user_properties(Object *cpu_obj); void kvm_riscv_reset_vcpu(RISCVCPU *cpu); void kvm_riscv_set_irq(RISCVCPU *cpu, int irq, int level); +void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift, + uint64_t aia_irq_num, uint64_t aia_msi_num, + uint64_t aplic_base, uint64_t imsic_base, + uint64_t guest_num); #endif diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/kvm.c +++ b/target/riscv/kvm.c @@ -XXX,XX +XXX,XX @@ #include "exec/address-spaces.h" #include "hw/boards.h" #include "hw/irq.h" +#include "hw/intc/riscv_imsic.h" #include "qemu/log.h" #include "hw/loader.h" #include "kvm_riscv.h" @@ -XXX,XX +XXX,XX @@ #include "chardev/char-fe.h" #include "migration/migration.h" #include "sysemu/runstate.h" +#include "hw/riscv/numa.h" static uint64_t kvm_riscv_reg_id(CPURISCVState *env, uint64_t type, uint64_t idx) @@ -XXX,XX +XXX,XX @@ bool kvm_arch_cpu_check_are_resettable(void) return true; } +static int aia_mode; + +static const char *kvm_aia_mode_str(uint64_t mode) +{ + switch (mode) { + case KVM_DEV_RISCV_AIA_MODE_EMUL: + return "emul"; + case KVM_DEV_RISCV_AIA_MODE_HWACCEL: + return "hwaccel"; + case KVM_DEV_RISCV_AIA_MODE_AUTO: + default: + return "auto"; + }; +} + +static char *riscv_get_kvm_aia(Object *obj, Error **errp) +{ + return g_strdup(kvm_aia_mode_str(aia_mode)); +} + +static void riscv_set_kvm_aia(Object *obj, const char *val, Error **errp) +{ + if (!strcmp(val, "emul")) { + aia_mode = KVM_DEV_RISCV_AIA_MODE_EMUL; + } else if (!strcmp(val, "hwaccel")) { + aia_mode = KVM_DEV_RISCV_AIA_MODE_HWACCEL; + } else if (!strcmp(val, "auto")) { + aia_mode = KVM_DEV_RISCV_AIA_MODE_AUTO; + } else { + error_setg(errp, "Invalid KVM AIA mode"); + error_append_hint(errp, "Valid values are emul, hwaccel, and auto.\n"); + } +} + void kvm_arch_accel_class_init(ObjectClass *oc) { + object_class_property_add_str(oc, "riscv-aia", riscv_get_kvm_aia, + riscv_set_kvm_aia); + object_class_property_set_description(oc, "riscv-aia", + "Set KVM AIA mode. Valid values are " + "emul, hwaccel, and auto. Default " + "is auto."); + object_property_set_default_str(object_class_property_find(oc, "riscv-aia"), + "auto"); +} + +void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift, + uint64_t aia_irq_num, uint64_t aia_msi_num, + uint64_t aplic_base, uint64_t imsic_base, + uint64_t guest_num) +{ + int ret, i; + int aia_fd = -1; + uint64_t default_aia_mode; + uint64_t socket_count = riscv_socket_count(machine); + uint64_t max_hart_per_socket = 0; + uint64_t socket, base_hart, hart_count, socket_imsic_base, imsic_addr; + uint64_t socket_bits, hart_bits, guest_bits; + + aia_fd = kvm_create_device(kvm_state, KVM_DEV_TYPE_RISCV_AIA, false); + + if (aia_fd < 0) { + error_report("Unable to create in-kernel irqchip"); + exit(1); + } + + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, + KVM_DEV_RISCV_AIA_CONFIG_MODE, + &default_aia_mode, false, NULL); + if (ret < 0) { + error_report("KVM AIA: failed to get current KVM AIA mode"); + exit(1); + } + qemu_log("KVM AIA: default mode is %s\n", + kvm_aia_mode_str(default_aia_mode)); + + if (default_aia_mode != aia_mode) { + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, + KVM_DEV_RISCV_AIA_CONFIG_MODE, + &aia_mode, true, NULL); + if (ret < 0) + warn_report("KVM AIA: failed to set KVM AIA mode"); + else + qemu_log("KVM AIA: set current mode to %s\n", + kvm_aia_mode_str(aia_mode)); + } + + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, + KVM_DEV_RISCV_AIA_CONFIG_SRCS, + &aia_irq_num, true, NULL); + if (ret < 0) { + error_report("KVM AIA: failed to set number of input irq lines"); + exit(1); + } + + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, + KVM_DEV_RISCV_AIA_CONFIG_IDS, + &aia_msi_num, true, NULL); + if (ret < 0) { + error_report("KVM AIA: failed to set number of msi"); + exit(1); + } + + socket_bits = find_last_bit(&socket_count, BITS_PER_LONG) + 1; + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, + KVM_DEV_RISCV_AIA_CONFIG_GROUP_BITS, + &socket_bits, true, NULL); + if (ret < 0) { + error_report("KVM AIA: failed to set group_bits"); + exit(1); + } + + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, + KVM_DEV_RISCV_AIA_CONFIG_GROUP_SHIFT, + &group_shift, true, NULL); + if (ret < 0) { + error_report("KVM AIA: failed to set group_shift"); + exit(1); + } + + guest_bits = guest_num == 0 ? 0 : + find_last_bit(&guest_num, BITS_PER_LONG) + 1; + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, + KVM_DEV_RISCV_AIA_CONFIG_GUEST_BITS, + &guest_bits, true, NULL); + if (ret < 0) { + error_report("KVM AIA: failed to set guest_bits"); + exit(1); + } + + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_ADDR, + KVM_DEV_RISCV_AIA_ADDR_APLIC, + &aplic_base, true, NULL); + if (ret < 0) { + error_report("KVM AIA: failed to set the base address of APLIC"); + exit(1); + } + + for (socket = 0; socket < socket_count; socket++) { + socket_imsic_base = imsic_base + socket * (1U << group_shift); + hart_count = riscv_socket_hart_count(machine, socket); + base_hart = riscv_socket_first_hartid(machine, socket); + + if (max_hart_per_socket < hart_count) { + max_hart_per_socket = hart_count; + } + + for (i = 0; i < hart_count; i++) { + imsic_addr = socket_imsic_base + i * IMSIC_HART_SIZE(guest_bits); + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_ADDR, + KVM_DEV_RISCV_AIA_ADDR_IMSIC(i + base_hart), + &imsic_addr, true, NULL); + if (ret < 0) { + error_report("KVM AIA: failed to set the IMSIC address for hart %d", i); + exit(1); + } + } + } + + hart_bits = find_last_bit(&max_hart_per_socket, BITS_PER_LONG) + 1; + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CONFIG, + KVM_DEV_RISCV_AIA_CONFIG_HART_BITS, + &hart_bits, true, NULL); + if (ret < 0) { + error_report("KVM AIA: failed to set hart_bits"); + exit(1); + } + + if (kvm_has_gsi_routing()) { + for (uint64_t idx = 0; idx < aia_irq_num + 1; ++idx) { + /* KVM AIA only has one APLIC instance */ + kvm_irqchip_add_irq_route(kvm_state, idx, 0, idx); + } + kvm_gsi_routing_allowed = true; + kvm_irqchip_commit_routes(kvm_state); + } + + ret = kvm_device_access(aia_fd, KVM_DEV_RISCV_AIA_GRP_CTRL, + KVM_DEV_RISCV_AIA_CTRL_INIT, + NULL, true, NULL); + if (ret < 0) { + error_report("KVM AIA: initialized fail"); + exit(1); + } + + kvm_msi_via_irqfd_allowed = kvm_irqfds_enabled(); } -- 2.41.0 From: Yong-Xuan Wang <yongxuan.wang@sifive.com> KVM AIA can't emulate APLIC only. When "aia=aplic" parameter is passed, APLIC devices is emulated by QEMU. For "aia=aplic-imsic", remove the mmio operations of APLIC when using KVM AIA and send wired interrupt signal via KVM_IRQ_LINE API. After KVM AIA enabled, MSI messages are delivered by KVM_SIGNAL_MSI API when the IMSICs receive mmio write requests. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Jim Shu <jim.shu@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Message-ID: <20230727102439.22554-5-yongxuan.wang@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- hw/intc/riscv_aplic.c | 56 ++++++++++++++++++++++++++++++------------- hw/intc/riscv_imsic.c | 25 +++++++++++++++---- 2 files changed, 61 insertions(+), 20 deletions(-) diff --git a/hw/intc/riscv_aplic.c b/hw/intc/riscv_aplic.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/riscv_aplic.c +++ b/hw/intc/riscv_aplic.c @@ -XXX,XX +XXX,XX @@ #include "hw/irq.h" #include "target/riscv/cpu.h" #include "sysemu/sysemu.h" +#include "sysemu/kvm.h" #include "migration/vmstate.h" #define APLIC_MAX_IDC (1UL << 14) @@ -XXX,XX +XXX,XX @@ #define APLIC_IDC_CLAIMI 0x1c +/* + * KVM AIA only supports APLIC MSI, fallback to QEMU emulation if we want to use + * APLIC Wired. + */ +static bool is_kvm_aia(bool msimode) +{ + return kvm_irqchip_in_kernel() && msimode; +} + static uint32_t riscv_aplic_read_input_word(RISCVAPLICState *aplic, uint32_t word) { @@ -XXX,XX +XXX,XX @@ static uint32_t riscv_aplic_idc_claimi(RISCVAPLICState *aplic, uint32_t idc) return topi; } +static void riscv_kvm_aplic_request(void *opaque, int irq, int level) +{ + kvm_set_irq(kvm_state, irq, !!level); +} + static void riscv_aplic_request(void *opaque, int irq, int level) { bool update = false; @@ -XXX,XX +XXX,XX @@ static void riscv_aplic_realize(DeviceState *dev, Error **errp) uint32_t i; RISCVAPLICState *aplic = RISCV_APLIC(dev); - aplic->bitfield_words = (aplic->num_irqs + 31) >> 5; - aplic->sourcecfg = g_new0(uint32_t, aplic->num_irqs); - aplic->state = g_new0(uint32_t, aplic->num_irqs); - aplic->target = g_new0(uint32_t, aplic->num_irqs); - if (!aplic->msimode) { - for (i = 0; i < aplic->num_irqs; i++) { - aplic->target[i] = 1; + if (!is_kvm_aia(aplic->msimode)) { + aplic->bitfield_words = (aplic->num_irqs + 31) >> 5; + aplic->sourcecfg = g_new0(uint32_t, aplic->num_irqs); + aplic->state = g_new0(uint32_t, aplic->num_irqs); + aplic->target = g_new0(uint32_t, aplic->num_irqs); + if (!aplic->msimode) { + for (i = 0; i < aplic->num_irqs; i++) { + aplic->target[i] = 1; + } } - } - aplic->idelivery = g_new0(uint32_t, aplic->num_harts); - aplic->iforce = g_new0(uint32_t, aplic->num_harts); - aplic->ithreshold = g_new0(uint32_t, aplic->num_harts); + aplic->idelivery = g_new0(uint32_t, aplic->num_harts); + aplic->iforce = g_new0(uint32_t, aplic->num_harts); + aplic->ithreshold = g_new0(uint32_t, aplic->num_harts); - memory_region_init_io(&aplic->mmio, OBJECT(dev), &riscv_aplic_ops, aplic, - TYPE_RISCV_APLIC, aplic->aperture_size); - sysbus_init_mmio(SYS_BUS_DEVICE(dev), &aplic->mmio); + memory_region_init_io(&aplic->mmio, OBJECT(dev), &riscv_aplic_ops, + aplic, TYPE_RISCV_APLIC, aplic->aperture_size); + sysbus_init_mmio(SYS_BUS_DEVICE(dev), &aplic->mmio); + } /* * Only root APLICs have hardware IRQ lines. All non-root APLICs * have IRQ lines delegated by their parent APLIC. */ if (!aplic->parent) { - qdev_init_gpio_in(dev, riscv_aplic_request, aplic->num_irqs); + if (is_kvm_aia(aplic->msimode)) { + qdev_init_gpio_in(dev, riscv_kvm_aplic_request, aplic->num_irqs); + } else { + qdev_init_gpio_in(dev, riscv_aplic_request, aplic->num_irqs); + } } /* Create output IRQ lines for non-MSI mode */ @@ -XXX,XX +XXX,XX @@ DeviceState *riscv_aplic_create(hwaddr addr, hwaddr size, qdev_prop_set_bit(dev, "mmode", mmode); sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); - sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr); + + if (!is_kvm_aia(msimode)) { + sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr); + } if (parent) { riscv_aplic_add_child(parent, dev); diff --git a/hw/intc/riscv_imsic.c b/hw/intc/riscv_imsic.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/riscv_imsic.c +++ b/hw/intc/riscv_imsic.c @@ -XXX,XX +XXX,XX @@ #include "target/riscv/cpu.h" #include "target/riscv/cpu_bits.h" #include "sysemu/sysemu.h" +#include "sysemu/kvm.h" #include "migration/vmstate.h" #define IMSIC_MMIO_PAGE_LE 0x00 @@ -XXX,XX +XXX,XX @@ static void riscv_imsic_write(void *opaque, hwaddr addr, uint64_t value, goto err; } +#if defined(CONFIG_KVM) + if (kvm_irqchip_in_kernel()) { + struct kvm_msi msi; + + msi.address_lo = extract64(imsic->mmio.addr + addr, 0, 32); + msi.address_hi = extract64(imsic->mmio.addr + addr, 32, 32); + msi.data = le32_to_cpu(value); + + kvm_vm_ioctl(kvm_state, KVM_SIGNAL_MSI, &msi); + + return; + } +#endif + /* Writes only supported for MSI little-endian registers */ page = addr >> IMSIC_MMIO_PAGE_SHIFT; if ((addr & (IMSIC_MMIO_PAGE_SZ - 1)) == IMSIC_MMIO_PAGE_LE) { @@ -XXX,XX +XXX,XX @@ static void riscv_imsic_realize(DeviceState *dev, Error **errp) CPUState *cpu = cpu_by_arch_id(imsic->hartid); CPURISCVState *env = cpu ? cpu->env_ptr : NULL; - imsic->num_eistate = imsic->num_pages * imsic->num_irqs; - imsic->eidelivery = g_new0(uint32_t, imsic->num_pages); - imsic->eithreshold = g_new0(uint32_t, imsic->num_pages); - imsic->eistate = g_new0(uint32_t, imsic->num_eistate); + if (!kvm_irqchip_in_kernel()) { + imsic->num_eistate = imsic->num_pages * imsic->num_irqs; + imsic->eidelivery = g_new0(uint32_t, imsic->num_pages); + imsic->eithreshold = g_new0(uint32_t, imsic->num_pages); + imsic->eistate = g_new0(uint32_t, imsic->num_eistate); + } memory_region_init_io(&imsic->mmio, OBJECT(dev), &riscv_imsic_ops, imsic, TYPE_RISCV_IMSIC, -- 2.41.0 From: Yong-Xuan Wang <yongxuan.wang@sifive.com> Select KVM AIA when the host kernel has in-kernel AIA chip support. Since KVM AIA only has one APLIC instance, we map the QEMU APLIC devices to KVM APLIC. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Jim Shu <jim.shu@sifive.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Message-ID: <20230727102439.22554-6-yongxuan.wang@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- hw/riscv/virt.c | 94 +++++++++++++++++++++++++++++++++---------------- 1 file changed, 63 insertions(+), 31 deletions(-) diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index XXXXXXX..XXXXXXX 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -XXX,XX +XXX,XX @@ #include "hw/riscv/virt.h" #include "hw/riscv/boot.h" #include "hw/riscv/numa.h" +#include "kvm_riscv.h" #include "hw/intc/riscv_aclint.h" #include "hw/intc/riscv_aplic.h" #include "hw/intc/riscv_imsic.h" @@ -XXX,XX +XXX,XX @@ #error "Can't accommodate all IMSIC groups in address space" #endif +/* KVM AIA only supports APLIC MSI. APLIC Wired is always emulated by QEMU. */ +static bool virt_use_kvm_aia(RISCVVirtState *s) +{ + return kvm_irqchip_in_kernel() && s->aia_type == VIRT_AIA_TYPE_APLIC_IMSIC; +} + static const MemMapEntry virt_memmap[] = { [VIRT_DEBUG] = { 0x0, 0x100 }, [VIRT_MROM] = { 0x1000, 0xf000 }, @@ -XXX,XX +XXX,XX @@ static void create_fdt_one_aplic(RISCVVirtState *s, int socket, uint32_t *intc_phandles, uint32_t aplic_phandle, uint32_t aplic_child_phandle, - bool m_mode) + bool m_mode, int num_harts) { int cpu; char *aplic_name; uint32_t *aplic_cells; MachineState *ms = MACHINE(s); - aplic_cells = g_new0(uint32_t, s->soc[socket].num_harts * 2); + aplic_cells = g_new0(uint32_t, num_harts * 2); - for (cpu = 0; cpu < s->soc[socket].num_harts; cpu++) { + for (cpu = 0; cpu < num_harts; cpu++) { aplic_cells[cpu * 2 + 0] = cpu_to_be32(intc_phandles[cpu]); aplic_cells[cpu * 2 + 1] = cpu_to_be32(m_mode ? IRQ_M_EXT : IRQ_S_EXT); } @@ -XXX,XX +XXX,XX @@ static void create_fdt_one_aplic(RISCVVirtState *s, int socket, if (s->aia_type == VIRT_AIA_TYPE_APLIC) { qemu_fdt_setprop(ms->fdt, aplic_name, "interrupts-extended", - aplic_cells, - s->soc[socket].num_harts * sizeof(uint32_t) * 2); + aplic_cells, num_harts * sizeof(uint32_t) * 2); } else { qemu_fdt_setprop_cell(ms->fdt, aplic_name, "msi-parent", msi_phandle); } @@ -XXX,XX +XXX,XX @@ static void create_fdt_socket_aplic(RISCVVirtState *s, uint32_t msi_s_phandle, uint32_t *phandle, uint32_t *intc_phandles, - uint32_t *aplic_phandles) + uint32_t *aplic_phandles, + int num_harts) { char *aplic_name; unsigned long aplic_addr; @@ -XXX,XX +XXX,XX @@ static void create_fdt_socket_aplic(RISCVVirtState *s, create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_M].size, msi_m_phandle, intc_phandles, aplic_m_phandle, aplic_s_phandle, - true); + true, num_harts); } /* S-level APLIC node */ @@ -XXX,XX +XXX,XX @@ static void create_fdt_socket_aplic(RISCVVirtState *s, create_fdt_one_aplic(s, socket, aplic_addr, memmap[VIRT_APLIC_S].size, msi_s_phandle, intc_phandles, aplic_s_phandle, 0, - false); + false, num_harts); aplic_name = g_strdup_printf("/soc/aplic@%lx", aplic_addr); @@ -XXX,XX +XXX,XX @@ static void create_fdt_sockets(RISCVVirtState *s, const MemMapEntry *memmap, *msi_pcie_phandle = msi_s_phandle; } - phandle_pos = ms->smp.cpus; - for (socket = (socket_count - 1); socket >= 0; socket--) { - phandle_pos -= s->soc[socket].num_harts; - - if (s->aia_type == VIRT_AIA_TYPE_NONE) { - create_fdt_socket_plic(s, memmap, socket, phandle, - &intc_phandles[phandle_pos], xplic_phandles); - } else { - create_fdt_socket_aplic(s, memmap, socket, - msi_m_phandle, msi_s_phandle, phandle, - &intc_phandles[phandle_pos], xplic_phandles); + /* KVM AIA only has one APLIC instance */ + if (virt_use_kvm_aia(s)) { + create_fdt_socket_aplic(s, memmap, 0, + msi_m_phandle, msi_s_phandle, phandle, + &intc_phandles[0], xplic_phandles, + ms->smp.cpus); + } else { + phandle_pos = ms->smp.cpus; + for (socket = (socket_count - 1); socket >= 0; socket--) { + phandle_pos -= s->soc[socket].num_harts; + + if (s->aia_type == VIRT_AIA_TYPE_NONE) { + create_fdt_socket_plic(s, memmap, socket, phandle, + &intc_phandles[phandle_pos], + xplic_phandles); + } else { + create_fdt_socket_aplic(s, memmap, socket, + msi_m_phandle, msi_s_phandle, phandle, + &intc_phandles[phandle_pos], + xplic_phandles, + s->soc[socket].num_harts); + } } } g_free(intc_phandles); - for (socket = 0; socket < socket_count; socket++) { - if (socket == 0) { - *irq_mmio_phandle = xplic_phandles[socket]; - *irq_virtio_phandle = xplic_phandles[socket]; - *irq_pcie_phandle = xplic_phandles[socket]; - } - if (socket == 1) { - *irq_virtio_phandle = xplic_phandles[socket]; - *irq_pcie_phandle = xplic_phandles[socket]; - } - if (socket == 2) { - *irq_pcie_phandle = xplic_phandles[socket]; + if (virt_use_kvm_aia(s)) { + *irq_mmio_phandle = xplic_phandles[0]; + *irq_virtio_phandle = xplic_phandles[0]; + *irq_pcie_phandle = xplic_phandles[0]; + } else { + for (socket = 0; socket < socket_count; socket++) { + if (socket == 0) { + *irq_mmio_phandle = xplic_phandles[socket]; + *irq_virtio_phandle = xplic_phandles[socket]; + *irq_pcie_phandle = xplic_phandles[socket]; + } + if (socket == 1) { + *irq_virtio_phandle = xplic_phandles[socket]; + *irq_pcie_phandle = xplic_phandles[socket]; + } + if (socket == 2) { + *irq_pcie_phandle = xplic_phandles[socket]; + } } } @@ -XXX,XX +XXX,XX @@ static void virt_machine_init(MachineState *machine) } } + if (virt_use_kvm_aia(s)) { + kvm_riscv_aia_create(machine, IMSIC_MMIO_GROUP_MIN_SHIFT, + VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_MSIS, + memmap[VIRT_APLIC_S].base, + memmap[VIRT_IMSIC_S].base, + s->aia_guests); + } + if (riscv_is_32bit(&s->soc[0])) { #if HOST_LONG_BITS == 64 /* limit RAM size in a 32-bit system */ -- 2.41.0 From: Conor Dooley <conor.dooley@microchip.com> On a dtb dumped from the virt machine, dt-validate complains: soc: pmu: {'riscv,event-to-mhpmcounters': [[1, 1, 524281], [2, 2, 524284], [65561, 65561, 524280], [65563, 65563, 524280], [65569, 65569, 524280]], 'compatible': ['riscv,pmu']} should not be valid under {'type': 'object'} from schema $id: http://devicetree.org/schemas/simple-bus.yaml# That's pretty cryptic, but running the dtb back through dtc produces something a lot more reasonable: Warning (simple_bus_reg): /soc/pmu: missing or empty reg/ranges property Moving the riscv,pmu node out of the soc bus solves the problem. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20230727-groom-decline-2c57ce42841c@spud> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- hw/riscv/virt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index XXXXXXX..XXXXXXX 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -XXX,XX +XXX,XX @@ static void create_fdt_pmu(RISCVVirtState *s) MachineState *ms = MACHINE(s); RISCVCPU hart = s->soc[0].harts[0]; - pmu_name = g_strdup_printf("/soc/pmu"); + pmu_name = g_strdup_printf("/pmu"); qemu_fdt_add_subnode(ms->fdt, pmu_name); qemu_fdt_setprop_string(ms->fdt, pmu_name, "compatible", "riscv,pmu"); riscv_pmu_generate_fdt_node(ms->fdt, hart.cfg.pmu_num, pmu_name); -- 2.41.0 From: Weiwei Li <liweiwei@iscas.ac.cn> The Svadu specification updated the name of the *envcfg bit from HADE to ADUE. Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Message-ID: <20230816141916.66898-1-liweiwei@iscas.ac.cn> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu_bits.h | 8 ++++---- target/riscv/cpu.c | 4 ++-- target/riscv/cpu_helper.c | 6 +++--- target/riscv/csr.c | 12 ++++++------ 4 files changed, 15 insertions(+), 15 deletions(-) diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_bits.h +++ b/target/riscv/cpu_bits.h @@ -XXX,XX +XXX,XX @@ typedef enum RISCVException { #define MENVCFG_CBIE (3UL << 4) #define MENVCFG_CBCFE BIT(6) #define MENVCFG_CBZE BIT(7) -#define MENVCFG_HADE (1ULL << 61) +#define MENVCFG_ADUE (1ULL << 61) #define MENVCFG_PBMTE (1ULL << 62) #define MENVCFG_STCE (1ULL << 63) /* For RV32 */ -#define MENVCFGH_HADE BIT(29) +#define MENVCFGH_ADUE BIT(29) #define MENVCFGH_PBMTE BIT(30) #define MENVCFGH_STCE BIT(31) @@ -XXX,XX +XXX,XX @@ typedef enum RISCVException { #define HENVCFG_CBIE MENVCFG_CBIE #define HENVCFG_CBCFE MENVCFG_CBCFE #define HENVCFG_CBZE MENVCFG_CBZE -#define HENVCFG_HADE MENVCFG_HADE +#define HENVCFG_ADUE MENVCFG_ADUE #define HENVCFG_PBMTE MENVCFG_PBMTE #define HENVCFG_STCE MENVCFG_STCE /* For RV32 */ -#define HENVCFGH_HADE MENVCFGH_HADE +#define HENVCFGH_ADUE MENVCFGH_ADUE #define HENVCFGH_PBMTE MENVCFGH_PBMTE #define HENVCFGH_STCE MENVCFGH_STCE diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static void riscv_cpu_reset_hold(Object *obj) env->two_stage_lookup = false; env->menvcfg = (cpu->cfg.ext_svpbmt ? MENVCFG_PBMTE : 0) | - (cpu->cfg.ext_svadu ? MENVCFG_HADE : 0); + (cpu->cfg.ext_svadu ? MENVCFG_ADUE : 0); env->henvcfg = (cpu->cfg.ext_svpbmt ? HENVCFG_PBMTE : 0) | - (cpu->cfg.ext_svadu ? HENVCFG_HADE : 0); + (cpu->cfg.ext_svadu ? HENVCFG_ADUE : 0); /* Initialized default priorities of local interrupts. */ for (i = 0; i < ARRAY_SIZE(env->miprio); i++) { diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -XXX,XX +XXX,XX @@ static int get_physical_address(CPURISCVState *env, hwaddr *physical, } bool pbmte = env->menvcfg & MENVCFG_PBMTE; - bool hade = env->menvcfg & MENVCFG_HADE; + bool adue = env->menvcfg & MENVCFG_ADUE; if (first_stage && two_stage && env->virt_enabled) { pbmte = pbmte && (env->henvcfg & HENVCFG_PBMTE); - hade = hade && (env->henvcfg & HENVCFG_HADE); + adue = adue && (env->henvcfg & HENVCFG_ADUE); } int ptshift = (levels - 1) * ptidxbits; @@ -XXX,XX +XXX,XX @@ restart: /* Page table updates need to be atomic with MTTCG enabled */ if (updated_pte != pte && !is_debug) { - if (!hade) { + if (!adue) { return TRANSLATE_FAIL; } diff --git a/target/riscv/csr.c b/target/riscv/csr.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -XXX,XX +XXX,XX @@ static RISCVException write_menvcfg(CPURISCVState *env, int csrno, if (riscv_cpu_mxl(env) == MXL_RV64) { mask |= (cfg->ext_svpbmt ? MENVCFG_PBMTE : 0) | (cfg->ext_sstc ? MENVCFG_STCE : 0) | - (cfg->ext_svadu ? MENVCFG_HADE : 0); + (cfg->ext_svadu ? MENVCFG_ADUE : 0); } env->menvcfg = (env->menvcfg & ~mask) | (val & mask); @@ -XXX,XX +XXX,XX @@ static RISCVException write_menvcfgh(CPURISCVState *env, int csrno, const RISCVCPUConfig *cfg = riscv_cpu_cfg(env); uint64_t mask = (cfg->ext_svpbmt ? MENVCFG_PBMTE : 0) | (cfg->ext_sstc ? MENVCFG_STCE : 0) | - (cfg->ext_svadu ? MENVCFG_HADE : 0); + (cfg->ext_svadu ? MENVCFG_ADUE : 0); uint64_t valh = (uint64_t)val << 32; env->menvcfg = (env->menvcfg & ~mask) | (valh & mask); @@ -XXX,XX +XXX,XX @@ static RISCVException read_henvcfg(CPURISCVState *env, int csrno, * henvcfg.stce is read_only 0 when menvcfg.stce = 0 * henvcfg.hade is read_only 0 when menvcfg.hade = 0 */ - *val = env->henvcfg & (~(HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_HADE) | + *val = env->henvcfg & (~(HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_ADUE) | env->menvcfg); return RISCV_EXCP_NONE; } @@ -XXX,XX +XXX,XX @@ static RISCVException write_henvcfg(CPURISCVState *env, int csrno, } if (riscv_cpu_mxl(env) == MXL_RV64) { - mask |= env->menvcfg & (HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_HADE); + mask |= env->menvcfg & (HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_ADUE); } env->henvcfg = (env->henvcfg & ~mask) | (val & mask); @@ -XXX,XX +XXX,XX @@ static RISCVException read_henvcfgh(CPURISCVState *env, int csrno, return ret; } - *val = (env->henvcfg & (~(HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_HADE) | + *val = (env->henvcfg & (~(HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_ADUE) | env->menvcfg)) >> 32; return RISCV_EXCP_NONE; } @@ -XXX,XX +XXX,XX @@ static RISCVException write_henvcfgh(CPURISCVState *env, int csrno, target_ulong val) { uint64_t mask = env->menvcfg & (HENVCFG_PBMTE | HENVCFG_STCE | - HENVCFG_HADE); + HENVCFG_ADUE); uint64_t valh = (uint64_t)val << 32; RISCVException ret; -- 2.41.0 From: Daniel Henrique Barboza <dbarboza@ventanamicro.com> In the same emulated RISC-V host, the 'host' KVM CPU takes 4 times longer to boot than the 'rv64' KVM CPU. The reason is an unintended behavior of riscv_cpu_satp_mode_finalize() when satp_mode.supported = 0, i.e. when cpu_init() does not set satp_mode_max_supported(). satp_mode_max_from_map(map) does: 31 - __builtin_clz(map) This means that, if satp_mode.supported = 0, satp_mode_supported_max wil be '31 - 32'. But this is C, so satp_mode_supported_max will gladly set it to UINT_MAX (4294967295). After that, if the user didn't set a satp_mode, set_satp_mode_default_map(cpu) will make cfg.satp_mode.map = cfg.satp_mode.supported So satp_mode.map = 0. And then satp_mode_map_max will be set to satp_mode_max_from_map(cpu->cfg.satp_mode.map), i.e. also UINT_MAX. The guard "satp_mode_map_max > satp_mode_supported_max" doesn't protect us here since both are UINT_MAX. And finally we have 2 loops: for (int i = satp_mode_map_max - 1; i >= 0; --i) { Which are, in fact, 2 loops from UINT_MAX -1 to -1. This is where the extra delay when booting the 'host' CPU is coming from. Commit 43d1de32f8 already set a precedence for satp_mode.supported = 0 in a different manner. We're doing the same here. If supported == 0, interpret as 'the CPU wants the OS to handle satp mode alone' and skip satp_mode_finalize(). We'll also put a guard in satp_mode_max_from_map() to assert out if map is 0 since the function is not ready to deal with it. Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Fixes: 6f23aaeb9b ("riscv: Allow user to set the satp mode") Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Message-ID: <20230817152903.694926-1-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static uint8_t satp_mode_from_str(const char *satp_mode_str) uint8_t satp_mode_max_from_map(uint32_t map) { + /* + * 'map = 0' will make us return (31 - 32), which C will + * happily overflow to UINT_MAX. There's no good result to + * return if 'map = 0' (e.g. returning 0 will be ambiguous + * with the result for 'map = 1'). + * + * Assert out if map = 0. Callers will have to deal with + * it outside of this function. + */ + g_assert(map > 0); + /* map here has at least one bit set, so no problem with clz */ return 31 - __builtin_clz(map); } @@ -XXX,XX +XXX,XX @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp) static void riscv_cpu_satp_mode_finalize(RISCVCPU *cpu, Error **errp) { bool rv32 = riscv_cpu_mxl(&cpu->env) == MXL_RV32; - uint8_t satp_mode_map_max; - uint8_t satp_mode_supported_max = - satp_mode_max_from_map(cpu->cfg.satp_mode.supported); + uint8_t satp_mode_map_max, satp_mode_supported_max; + + /* The CPU wants the OS to decide which satp mode to use */ + if (cpu->cfg.satp_mode.supported == 0) { + return; + } + + satp_mode_supported_max = + satp_mode_max_from_map(cpu->cfg.satp_mode.supported); if (cpu->cfg.satp_mode.map == 0) { if (cpu->cfg.satp_mode.init == 0) { -- 2.41.0 From: Vineet Gupta <vineetg@rivosinc.com> zicond is now codegen supported in both llvm and gcc. This change allows seamless enabling/testing of zicond in downstream projects. e.g. currently riscv-gnu-toolchain parses elf attributes to create a cmdline for qemu but fails short of enabling it because of the "x-" prefix. Signed-off-by: Vineet Gupta <vineetg@rivosinc.com> Message-ID: <20230808181715.436395-1-vineetg@rivosinc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { DEFINE_PROP_BOOL("zcf", RISCVCPU, cfg.ext_zcf, false), DEFINE_PROP_BOOL("zcmp", RISCVCPU, cfg.ext_zcmp, false), DEFINE_PROP_BOOL("zcmt", RISCVCPU, cfg.ext_zcmt, false), + DEFINE_PROP_BOOL("zicond", RISCVCPU, cfg.ext_zicond, false), /* Vendor-specific custom extensions */ DEFINE_PROP_BOOL("xtheadba", RISCVCPU, cfg.ext_xtheadba, false), @@ -XXX,XX +XXX,XX @@ static Property riscv_cpu_extensions[] = { DEFINE_PROP_BOOL("xventanacondops", RISCVCPU, cfg.ext_XVentanaCondOps, false), /* These are experimental so mark with 'x-' */ - DEFINE_PROP_BOOL("x-zicond", RISCVCPU, cfg.ext_zicond, false), /* ePMP 0.9.3 */ DEFINE_PROP_BOOL("x-epmp", RISCVCPU, cfg.epmp, false), -- 2.41.0 From: Daniel Henrique Barboza <dbarboza@ventanamicro.com> A build with --enable-debug and without KVM will fail as follows: /usr/bin/ld: libqemu-riscv64-softmmu.fa.p/hw_riscv_virt.c.o: in function `virt_machine_init': ./qemu/build/../hw/riscv/virt.c:1465: undefined reference to `kvm_riscv_aia_create' This happens because the code block with "if virt_use_kvm_aia(s)" isn't being ignored by the debug build, resulting in an undefined reference to a KVM only function. Add a 'kvm_enabled()' conditional together with virt_use_kvm_aia() will make the compiler crop the kvm_riscv_aia_create() call entirely from a non-KVM build. Note that adding the 'kvm_enabled()' conditional inside virt_use_kvm_aia() won't fix the build because this function would need to be inlined multiple times to make the compiler zero out the entire block. While we're at it, use kvm_enabled() in all instances where virt_use_kvm_aia() is checked to allow the compiler to elide these other kvm-only instances as well. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Fixes: dbdb99948e ("target/riscv: select KVM AIA in riscv virt machine") Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20230830133503.711138-2-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- hw/riscv/virt.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index XXXXXXX..XXXXXXX 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -XXX,XX +XXX,XX @@ static void create_fdt_sockets(RISCVVirtState *s, const MemMapEntry *memmap, } /* KVM AIA only has one APLIC instance */ - if (virt_use_kvm_aia(s)) { + if (kvm_enabled() && virt_use_kvm_aia(s)) { create_fdt_socket_aplic(s, memmap, 0, msi_m_phandle, msi_s_phandle, phandle, &intc_phandles[0], xplic_phandles, @@ -XXX,XX +XXX,XX @@ static void create_fdt_sockets(RISCVVirtState *s, const MemMapEntry *memmap, g_free(intc_phandles); - if (virt_use_kvm_aia(s)) { + if (kvm_enabled() && virt_use_kvm_aia(s)) { *irq_mmio_phandle = xplic_phandles[0]; *irq_virtio_phandle = xplic_phandles[0]; *irq_pcie_phandle = xplic_phandles[0]; @@ -XXX,XX +XXX,XX @@ static void virt_machine_init(MachineState *machine) } } - if (virt_use_kvm_aia(s)) { + if (kvm_enabled() && virt_use_kvm_aia(s)) { kvm_riscv_aia_create(machine, IMSIC_MMIO_GROUP_MIN_SHIFT, VIRT_IRQCHIP_NUM_SOURCES, VIRT_IRQCHIP_NUM_MSIS, memmap[VIRT_APLIC_S].base, -- 2.41.0 From: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Commit 6df0b37e2ab breaks a --enable-debug build in a non-KVM environment with the following error: /usr/bin/ld: libqemu-riscv64-softmmu.fa.p/hw_intc_riscv_aplic.c.o: in function `riscv_kvm_aplic_request': ./qemu/build/../hw/intc/riscv_aplic.c:486: undefined reference to `kvm_set_irq' collect2: error: ld returned 1 exit status This happens because the debug build will poke into the 'if (is_kvm_aia(aplic->msimode))' block and fail to find a reference to the KVM only function riscv_kvm_aplic_request(). There are multiple solutions to fix this. We'll go with the same solution from the previous patch, i.e. add a kvm_enabled() conditional to filter out the block. But there's a catch: riscv_kvm_aplic_request() is a local function that would end up being used if the compiler crops the block, and this won't work. Quoting Richard Henderson's explanation in [1]: "(...) the compiler won't eliminate entire unused functions with -O0" We'll solve it by moving riscv_kvm_aplic_request() to kvm.c and add its declaration in kvm_riscv.h, where all other KVM specific public functions are already declared. Other archs handles KVM specific code in this manner and we expect to do the same from now on. [1] https://lore.kernel.org/qemu-riscv/d2f1ad02-eb03-138f-9d08-db676deeed05@linaro.org/ Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20230830133503.711138-3-dbarboza@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/kvm_riscv.h | 1 + hw/intc/riscv_aplic.c | 8 ++------ target/riscv/kvm.c | 5 +++++ 3 files changed, 8 insertions(+), 6 deletions(-) diff --git a/target/riscv/kvm_riscv.h b/target/riscv/kvm_riscv.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/kvm_riscv.h +++ b/target/riscv/kvm_riscv.h @@ -XXX,XX +XXX,XX @@ void kvm_riscv_aia_create(MachineState *machine, uint64_t group_shift, uint64_t aia_irq_num, uint64_t aia_msi_num, uint64_t aplic_base, uint64_t imsic_base, uint64_t guest_num); +void riscv_kvm_aplic_request(void *opaque, int irq, int level); #endif diff --git a/hw/intc/riscv_aplic.c b/hw/intc/riscv_aplic.c index XXXXXXX..XXXXXXX 100644 --- a/hw/intc/riscv_aplic.c +++ b/hw/intc/riscv_aplic.c @@ -XXX,XX +XXX,XX @@ #include "target/riscv/cpu.h" #include "sysemu/sysemu.h" #include "sysemu/kvm.h" +#include "kvm_riscv.h" #include "migration/vmstate.h" #define APLIC_MAX_IDC (1UL << 14) @@ -XXX,XX +XXX,XX @@ static uint32_t riscv_aplic_idc_claimi(RISCVAPLICState *aplic, uint32_t idc) return topi; } -static void riscv_kvm_aplic_request(void *opaque, int irq, int level) -{ - kvm_set_irq(kvm_state, irq, !!level); -} - static void riscv_aplic_request(void *opaque, int irq, int level) { bool update = false; @@ -XXX,XX +XXX,XX @@ static void riscv_aplic_realize(DeviceState *dev, Error **errp) * have IRQ lines delegated by their parent APLIC. */ if (!aplic->parent) { - if (is_kvm_aia(aplic->msimode)) { + if (kvm_enabled() && is_kvm_aia(aplic->msimode)) { qdev_init_gpio_in(dev, riscv_kvm_aplic_request, aplic->num_irqs); } else { qdev_init_gpio_in(dev, riscv_aplic_request, aplic->num_irqs); diff --git a/target/riscv/kvm.c b/target/riscv/kvm.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/kvm.c +++ b/target/riscv/kvm.c @@ -XXX,XX +XXX,XX @@ #include "sysemu/runstate.h" #include "hw/riscv/numa.h" +void riscv_kvm_aplic_request(void *opaque, int irq, int level) +{ + kvm_set_irq(kvm_state, irq, !!level); +} + static uint64_t kvm_riscv_reg_id(CPURISCVState *env, uint64_t type, uint64_t idx) { -- 2.41.0 From: Robbin Ehn <rehn@rivosinc.com> This patch adds the new extensions in linux 6.5 to the hwprobe syscall. And fixes RVC check to OR with correct value. The previous variable contains 0 therefore it did work. Signed-off-by: Robbin Ehn <rehn@rivosinc.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <bc82203b72d7efb30f1b4a8f9eb3d94699799dc8.camel@rivosinc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- linux-user/syscall.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index XXXXXXX..XXXXXXX 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -XXX,XX +XXX,XX @@ static int do_getdents64(abi_long dirfd, abi_long arg2, abi_long count) #define RISCV_HWPROBE_KEY_IMA_EXT_0 4 #define RISCV_HWPROBE_IMA_FD (1 << 0) #define RISCV_HWPROBE_IMA_C (1 << 1) +#define RISCV_HWPROBE_IMA_V (1 << 2) +#define RISCV_HWPROBE_EXT_ZBA (1 << 3) +#define RISCV_HWPROBE_EXT_ZBB (1 << 4) +#define RISCV_HWPROBE_EXT_ZBS (1 << 5) #define RISCV_HWPROBE_KEY_CPUPERF_0 5 #define RISCV_HWPROBE_MISALIGNED_UNKNOWN (0 << 0) @@ -XXX,XX +XXX,XX @@ static void risc_hwprobe_fill_pairs(CPURISCVState *env, riscv_has_ext(env, RVD) ? RISCV_HWPROBE_IMA_FD : 0; value |= riscv_has_ext(env, RVC) ? - RISCV_HWPROBE_IMA_C : pair->value; + RISCV_HWPROBE_IMA_C : 0; + value |= riscv_has_ext(env, RVV) ? + RISCV_HWPROBE_IMA_V : 0; + value |= cfg->ext_zba ? + RISCV_HWPROBE_EXT_ZBA : 0; + value |= cfg->ext_zbb ? + RISCV_HWPROBE_EXT_ZBB : 0; + value |= cfg->ext_zbs ? + RISCV_HWPROBE_EXT_ZBS : 0; __put_user(value, &pair->value); break; case RISCV_HWPROBE_KEY_CPUPERF_0: -- 2.41.0 From: Ard Biesheuvel <ardb@kernel.org> Use the accelerated SubBytes/ShiftRows/AddRoundKey AES helper to implement the first half of the key schedule derivation. This does not actually involve shifting rows, so clone the same value into all four columns of the AES vector to counter that operation. Cc: Richard Henderson <richard.henderson@linaro.org> Cc: Philippe Mathieu-Daudé <philmd@linaro.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20230831154118.138727-1-ardb@kernel.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/crypto_helper.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/target/riscv/crypto_helper.c b/target/riscv/crypto_helper.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/crypto_helper.c +++ b/target/riscv/crypto_helper.c @@ -XXX,XX +XXX,XX @@ target_ulong HELPER(aes64ks1i)(target_ulong rs1, target_ulong rnum) uint8_t enc_rnum = rnum; uint32_t temp = (RS1 >> 32) & 0xFFFFFFFF; - uint8_t rcon_ = 0; - target_ulong result; + AESState t, rc = {}; if (enc_rnum != 0xA) { temp = ror32(temp, 8); /* Rotate right by 8 */ - rcon_ = round_consts[enc_rnum]; + rc.w[0] = rc.w[1] = round_consts[enc_rnum]; } - temp = ((uint32_t)AES_sbox[(temp >> 24) & 0xFF] << 24) | - ((uint32_t)AES_sbox[(temp >> 16) & 0xFF] << 16) | - ((uint32_t)AES_sbox[(temp >> 8) & 0xFF] << 8) | - ((uint32_t)AES_sbox[(temp >> 0) & 0xFF] << 0); + t.w[0] = t.w[1] = t.w[2] = t.w[3] = temp; + aesenc_SB_SR_AK(&t, &t, &rc, false); - temp ^= rcon_; - - result = ((uint64_t)temp << 32) | temp; - - return result; + return t.d[0]; } target_ulong HELPER(aes64im)(target_ulong rs1) -- 2.41.0 From: Akihiko Odaki <akihiko.odaki@daynix.com> riscv_trigger_init() had been called on reset events that can happen several times for a CPU and it allocated timers for itrigger. If old timers were present, they were simply overwritten by the new timers, resulting in a memory leak. Divide riscv_trigger_init() into two functions, namely riscv_trigger_realize() and riscv_trigger_reset() and call them in appropriate timing. The timer allocation will happen only once for a CPU in riscv_trigger_realize(). Fixes: 5a4ae64cac ("target/riscv: Add itrigger support when icount is enabled") Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20230818034059.9146-1-akihiko.odaki@daynix.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/debug.h | 3 ++- target/riscv/cpu.c | 8 +++++++- target/riscv/debug.c | 15 ++++++++++++--- 3 files changed, 21 insertions(+), 5 deletions(-) diff --git a/target/riscv/debug.h b/target/riscv/debug.h index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/debug.h +++ b/target/riscv/debug.h @@ -XXX,XX +XXX,XX @@ void riscv_cpu_debug_excp_handler(CPUState *cs); bool riscv_cpu_debug_check_breakpoint(CPUState *cs); bool riscv_cpu_debug_check_watchpoint(CPUState *cs, CPUWatchpoint *wp); -void riscv_trigger_init(CPURISCVState *env); +void riscv_trigger_realize(CPURISCVState *env); +void riscv_trigger_reset_hold(CPURISCVState *env); bool riscv_itrigger_enabled(CPURISCVState *env); void riscv_itrigger_update_priv(CPURISCVState *env); diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -XXX,XX +XXX,XX @@ static void riscv_cpu_reset_hold(Object *obj) #ifndef CONFIG_USER_ONLY if (cpu->cfg.debug) { - riscv_trigger_init(env); + riscv_trigger_reset_hold(env); } if (kvm_enabled()) { @@ -XXX,XX +XXX,XX @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp) riscv_cpu_register_gdb_regs_for_features(cs); +#ifndef CONFIG_USER_ONLY + if (cpu->cfg.debug) { + riscv_trigger_realize(&cpu->env); + } +#endif + qemu_init_vcpu(cs); cpu_reset(cs); diff --git a/target/riscv/debug.c b/target/riscv/debug.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/debug.c +++ b/target/riscv/debug.c @@ -XXX,XX +XXX,XX @@ bool riscv_cpu_debug_check_watchpoint(CPUState *cs, CPUWatchpoint *wp) return false; } -void riscv_trigger_init(CPURISCVState *env) +void riscv_trigger_realize(CPURISCVState *env) +{ + int i; + + for (i = 0; i < RV_MAX_TRIGGERS; i++) { + env->itrigger_timer[i] = timer_new_ns(QEMU_CLOCK_VIRTUAL, + riscv_itrigger_timer_cb, env); + } +} + +void riscv_trigger_reset_hold(CPURISCVState *env) { target_ulong tdata1 = build_tdata1(env, TRIGGER_TYPE_AD_MATCH, 0, 0); int i; @@ -XXX,XX +XXX,XX @@ void riscv_trigger_init(CPURISCVState *env) env->tdata3[i] = 0; env->cpu_breakpoint[i] = NULL; env->cpu_watchpoint[i] = NULL; - env->itrigger_timer[i] = timer_new_ns(QEMU_CLOCK_VIRTUAL, - riscv_itrigger_timer_cb, env); + timer_del(env->itrigger_timer[i]); } } -- 2.41.0 From: Leon Schuermann <leons@opentitan.org> When the rule-lock bypass (RLB) bit is set in the mseccfg CSR, the PMP configuration lock bits must not apply. While this behavior is implemented for the pmpcfgX CSRs, this bit is not respected for changes to the pmpaddrX CSRs. This patch ensures that pmpaddrX CSR writes work even on locked regions when the global rule-lock bypass is enabled. Signed-off-by: Leon Schuermann <leons@opentitan.org> Reviewed-by: Mayuresh Chitale <mchitale@ventanamicro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20230829215046.1430463-1-leon@is.currently.online> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/pmp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/riscv/pmp.c b/target/riscv/pmp.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/pmp.c +++ b/target/riscv/pmp.c @@ -XXX,XX +XXX,XX @@ static inline uint8_t pmp_get_a_field(uint8_t cfg) */ static inline int pmp_is_locked(CPURISCVState *env, uint32_t pmp_index) { + /* mseccfg.RLB is set */ + if (MSECCFG_RLB_ISSET(env)) { + return 0; + } if (env->pmp_state.pmp[pmp_index].cfg_reg & PMP_LOCK) { return 1; -- 2.41.0 From: Tommy Wu <tommy.wu@sifive.com> According to the new spec, when vsiselect has a reserved value, attempts from M-mode or HS-mode to access vsireg, or from VS-mode to access sireg, should preferably raise an illegal instruction exception. Signed-off-by: Tommy Wu <tommy.wu@sifive.com> Reviewed-by: Frank Chang <frank.chang@sifive.com> Message-ID: <20230816061647.600672-1-tommy.wu@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/csr.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -XXX,XX +XXX,XX @@ static int rmw_iprio(target_ulong xlen, static int rmw_xireg(CPURISCVState *env, int csrno, target_ulong *val, target_ulong new_val, target_ulong wr_mask) { - bool virt; + bool virt, isel_reserved; uint8_t *iprio; int ret = -EINVAL; target_ulong priv, isel, vgein; @@ -XXX,XX +XXX,XX @@ static int rmw_xireg(CPURISCVState *env, int csrno, target_ulong *val, /* Decode register details from CSR number */ virt = false; + isel_reserved = false; switch (csrno) { case CSR_MIREG: iprio = env->miprio; @@ -XXX,XX +XXX,XX @@ static int rmw_xireg(CPURISCVState *env, int csrno, target_ulong *val, riscv_cpu_mxl_bits(env)), val, new_val, wr_mask); } + } else { + isel_reserved = true; } done: if (ret) { - return (env->virt_enabled && virt) ? + return (env->virt_enabled && virt && !isel_reserved) ? RISCV_EXCP_VIRT_INSTRUCTION_FAULT : RISCV_EXCP_ILLEGAL_INST; } return RISCV_EXCP_NONE; -- 2.41.0 From: Nikita Shubin <n.shubin@yadro.com> As per ISA: "For CSRRWI, if rd=x0, then the instruction shall not read the CSR and shall not cause any of the side effects that might occur on a CSR read." trans_csrrwi() and trans_csrrw() call do_csrw() if rd=x0, do_csrw() calls riscv_csrrw_do64(), via helper_csrw() passing NULL as *ret_value. Signed-off-by: Nikita Shubin <n.shubin@yadro.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-ID: <20230808090914.17634-1-nikita.shubin@maquefel.me> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> --- target/riscv/csr.c | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/target/riscv/csr.c b/target/riscv/csr.c index XXXXXXX..XXXXXXX 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -XXX,XX +XXX,XX @@ static RISCVException riscv_csrrw_do64(CPURISCVState *env, int csrno, target_ulong write_mask) { RISCVException ret; - target_ulong old_value; + target_ulong old_value = 0; /* execute combined read/write operation if it exists */ if (csr_ops[csrno].op) { return csr_ops[csrno].op(env, csrno, ret_value, new_value, write_mask); } - /* if no accessor exists then return failure */ - if (!csr_ops[csrno].read) { - return RISCV_EXCP_ILLEGAL_INST; - } - /* read old value */ - ret = csr_ops[csrno].read(env, csrno, &old_value); - if (ret != RISCV_EXCP_NONE) { - return ret; + /* + * ret_value == NULL means that rd=x0 and we're coming from helper_csrw() + * and we can't throw side effects caused by CSR reads. + */ + if (ret_value) { + /* if no accessor exists then return failure */ + if (!csr_ops[csrno].read) { + return RISCV_EXCP_ILLEGAL_INST; + } + /* read old value */ + ret = csr_ops[csrno].read(env, csrno, &old_value); + if (ret != RISCV_EXCP_NONE) { + return ret; + } } /* write value if writable and write mask set, otherwise drop writes */ -- 2.41.0