diff options
Diffstat (limited to 'target/arm/hvf/hvf.c')
| -rw-r--r-- | target/arm/hvf/hvf.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c index 98bd6712c0..42dcc23ba0 100644 --- a/target/arm/hvf/hvf.c +++ b/target/arm/hvf/hvf.c @@ -372,6 +372,47 @@ static uint64_t hvf_get_reg(CPUState *cpu, int rt) return val; } +void hvf_arm_set_cpu_features_from_host(ARMCPU *cpu) +{ + ARMISARegisters host_isar; + const struct isar_regs { + int reg; + uint64_t *val; + } regs[] = { + { HV_SYS_REG_ID_AA64PFR0_EL1, &host_isar.id_aa64pfr0 }, + { HV_SYS_REG_ID_AA64PFR1_EL1, &host_isar.id_aa64pfr1 }, + { HV_SYS_REG_ID_AA64DFR0_EL1, &host_isar.id_aa64dfr0 }, + { HV_SYS_REG_ID_AA64DFR1_EL1, &host_isar.id_aa64dfr1 }, + { HV_SYS_REG_ID_AA64ISAR0_EL1, &host_isar.id_aa64isar0 }, + { HV_SYS_REG_ID_AA64ISAR1_EL1, &host_isar.id_aa64isar1 }, + { HV_SYS_REG_ID_AA64MMFR0_EL1, &host_isar.id_aa64mmfr0 }, + { HV_SYS_REG_ID_AA64MMFR1_EL1, &host_isar.id_aa64mmfr1 }, + { HV_SYS_REG_ID_AA64MMFR2_EL1, &host_isar.id_aa64mmfr2 }, + }; + hv_vcpu_t fd; + hv_vcpu_exit_t *exit; + int i; + + cpu->dtb_compatible = "arm,arm-v8"; + cpu->env.features = (1ULL << ARM_FEATURE_V8) | + (1ULL << ARM_FEATURE_NEON) | + (1ULL << ARM_FEATURE_AARCH64) | + (1ULL << ARM_FEATURE_PMU) | + (1ULL << ARM_FEATURE_GENERIC_TIMER); + + /* We set up a small vcpu to extract host registers */ + + assert_hvf_ok(hv_vcpu_create(&fd, &exit, NULL)); + for (i = 0; i < ARRAY_SIZE(regs); i++) { + assert_hvf_ok(hv_vcpu_get_sys_reg(fd, regs[i].reg, regs[i].val)); + } + assert_hvf_ok(hv_vcpu_get_sys_reg(fd, HV_SYS_REG_MIDR_EL1, &cpu->midr)); + assert_hvf_ok(hv_vcpu_destroy(fd)); + + cpu->isar = host_isar; + cpu->reset_sctlr = 0x00c50078; +} + void hvf_arch_vcpu_destroy(CPUState *cpu) { } |