diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2022-08-19 12:00:49 +0100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2022-09-14 11:19:40 +0100 |
| commit | 32957aad8ce3cd4f923b464efb80645963479ff8 (patch) | |
| tree | fc5d6fa8c35c4181a247b4a9a7467e1cf920a65e /target | |
| parent | 62b6f5e2f0a029810791dde6e02f86ad8575a02c (diff) | |
| download | qemu-32957aad8ce3cd4f923b464efb80645963479ff8.zip qemu-32957aad8ce3cd4f923b464efb80645963479ff8.tar.gz qemu-32957aad8ce3cd4f923b464efb80645963479ff8.tar.bz2 | |
target/arm: Implement ID_MMFR5
In Armv8.6 a new AArch32 ID register ID_MMFR5 is defined.
Implement this; we want to be able to use it to report to
the guest that we implement FEAT_ETS.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220819110052.2942289-4-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target')
| -rw-r--r-- | target/arm/cpu.h | 1 | ||||
| -rw-r--r-- | target/arm/helper.c | 4 | ||||
| -rw-r--r-- | target/arm/kvm64.c | 2 |
3 files changed, 5 insertions, 2 deletions
diff --git a/target/arm/cpu.h b/target/arm/cpu.h index 5168e3d..fcc5927 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -975,6 +975,7 @@ struct ArchCPU { uint32_t id_mmfr2; uint32_t id_mmfr3; uint32_t id_mmfr4; + uint32_t id_mmfr5; uint32_t id_pfr0; uint32_t id_pfr1; uint32_t id_pfr2; diff --git a/target/arm/helper.c b/target/arm/helper.c index c171770..0737851 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -7586,11 +7586,11 @@ void register_cp_regs_for_features(ARMCPU *cpu) .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa64_tid3, .resetvalue = 0 }, - { .name = "RES_0_C0_C3_6", .state = ARM_CP_STATE_BOTH, + { .name = "ID_MMFR5", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 6, .access = PL1_R, .type = ARM_CP_CONST, .accessfn = access_aa64_tid3, - .resetvalue = 0 }, + .resetvalue = cpu->isar.id_mmfr5 }, { .name = "RES_0_C0_C3_7", .state = ARM_CP_STATE_BOTH, .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 7, .access = PL1_R, .type = ARM_CP_CONST, diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index 84c4c85..2d737c4 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -643,6 +643,8 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) ARM64_SYS_REG(3, 0, 0, 3, 2)); err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_pfr2, ARM64_SYS_REG(3, 0, 0, 3, 4)); + err |= read_sys_reg32(fdarray[2], &ahcf->isar.id_mmfr5, + ARM64_SYS_REG(3, 0, 0, 3, 6)); /* * DBGDIDR is a bit complicated because the kernel doesn't |