diff options
Diffstat (limited to 'target/arm/kvm.c')
| -rw-r--r-- | target/arm/kvm.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/target/arm/kvm.c b/target/arm/kvm.c index 426f8b1..6672344 100644 --- a/target/arm/kvm.c +++ b/target/arm/kvm.c @@ -230,7 +230,8 @@ static uint64_t idregs_sysreg_to_kvm_reg(ARMSysRegs sysreg) } /* read a sysreg value and store it in the idregs */ -static int get_host_cpu_reg(int fd, ARMHostCPUFeatures *ahcf, ARMIDRegisterIdx index) +static int get_host_cpu_reg(int fd, ARMHostCPUFeatures *ahcf, + ARMIDRegisterIdx index) { uint64_t *reg; int ret; @@ -250,6 +251,7 @@ static bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) */ int fdarray[3]; bool sve_supported; + bool el2_supported; bool pmu_supported = false; uint64_t features = 0; int err; @@ -270,6 +272,14 @@ static bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) } /* + * Ask for EL2 if supported. + */ + el2_supported = kvm_arm_el2_supported(); + if (el2_supported) { + init.features[0] |= 1 << KVM_ARM_VCPU_HAS_EL2; + } + + /* * Ask for Pointer Authentication if supported, so that we get * the unsanitized field values for AA64ISAR1_EL1. */ @@ -422,6 +432,10 @@ static bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf) features |= 1ULL << ARM_FEATURE_AARCH64; features |= 1ULL << ARM_FEATURE_GENERIC_TIMER; + if (el2_supported) { + features |= 1ULL << ARM_FEATURE_EL2; + } + ahcf->features = features; return true; @@ -1762,6 +1776,11 @@ bool kvm_arm_aarch32_supported(void) return kvm_check_extension(kvm_state, KVM_CAP_ARM_EL1_32BIT); } +bool kvm_arm_el2_supported(void) +{ + return kvm_check_extension(kvm_state, KVM_CAP_ARM_EL2); +} + bool kvm_arm_sve_supported(void) { return kvm_check_extension(kvm_state, KVM_CAP_ARM_SVE); @@ -1882,6 +1901,9 @@ int kvm_arch_init_vcpu(CPUState *cs) cpu->kvm_init_features[0] |= (1 << KVM_ARM_VCPU_PTRAUTH_ADDRESS | 1 << KVM_ARM_VCPU_PTRAUTH_GENERIC); } + if (cpu->has_el2 && kvm_arm_el2_supported()) { + cpu->kvm_init_features[0] |= 1 << KVM_ARM_VCPU_HAS_EL2; + } /* Do KVM_ARM_VCPU_INIT ioctl */ ret = kvm_arm_vcpu_init(cpu); |