diff options
| author | Sean Christopherson <seanjc@google.com> | 2022-06-14 20:06:39 +0000 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2022-07-13 18:14:13 -0700 |
| commit | 601c067f381532105d01db9257b69eb9cfa8945e (patch) | |
| tree | 4f328fd39a559230d2c04584e1433394c91109ef /tools | |
| parent | b046f4ee9cb60da285e1d45a1fe8dc6bb5fc446e (diff) | |
KVM: selftests: Use kvm_cpu_has() for KVM's PV steal time
Use kvm_cpu_has() in the stea-ltime test instead of open coding
equivalent functionality using kvm_get_supported_cpuid_entry().
Opportunistically define all of KVM's paravirt CPUID-based features.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/r/20220614200707.3315957-15-seanjc@google.com
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/kvm/include/x86_64/processor.h | 22 | ||||
| -rw-r--r-- | tools/testing/selftests/kvm/steal_time.c | 4 |
2 files changed, 23 insertions, 3 deletions
diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h index 14342e68e0b5..15bccdd6d78c 100644 --- a/tools/testing/selftests/kvm/include/x86_64/processor.h +++ b/tools/testing/selftests/kvm/include/x86_64/processor.h @@ -137,6 +137,28 @@ struct kvm_x86_cpu_feature { #define X86_FEATURE_SEV KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 1) #define X86_FEATURE_SEV_ES KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 3) +/* + * KVM defined paravirt features. + */ +#define X86_FEATURE_KVM_CLOCKSOURCE KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 0) +#define X86_FEATURE_KVM_NOP_IO_DELAY KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 1) +#define X86_FEATURE_KVM_MMU_OP KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 2) +#define X86_FEATURE_KVM_CLOCKSOURCE2 KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 3) +#define X86_FEATURE_KVM_ASYNC_PF KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 4) +#define X86_FEATURE_KVM_STEAL_TIME KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 5) +#define X86_FEATURE_KVM_PV_EOI KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 6) +#define X86_FEATURE_KVM_PV_UNHALT KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 7) +/* Bit 8 apparently isn't used?!?! */ +#define X86_FEATURE_KVM_PV_TLB_FLUSH KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 9) +#define X86_FEATURE_KVM_ASYNC_PF_VMEXIT KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 10) +#define X86_FEATURE_KVM_PV_SEND_IPI KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 11) +#define X86_FEATURE_KVM_POLL_CONTROL KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 12) +#define X86_FEATURE_KVM_PV_SCHED_YIELD KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 13) +#define X86_FEATURE_KVM_ASYNC_PF_INT KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 14) +#define X86_FEATURE_KVM_MSI_EXT_DEST_ID KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 15) +#define X86_FEATURE_KVM_HC_MAP_GPA_RANGE KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 16) +#define X86_FEATURE_KVM_MIGRATION_CONTROL KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 17) + /* CPUID.1.ECX */ #define CPUID_VMX (1ul << 5) #define CPUID_XSAVE (1ul << 26) diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selftests/kvm/steal_time.c index 9866a71463d7..db8967f1a17b 100644 --- a/tools/testing/selftests/kvm/steal_time.c +++ b/tools/testing/selftests/kvm/steal_time.c @@ -60,9 +60,7 @@ static void guest_code(int cpu) static bool is_steal_time_supported(struct kvm_vcpu *vcpu) { - struct kvm_cpuid_entry2 *cpuid = kvm_get_supported_cpuid_entry(KVM_CPUID_FEATURES); - - return cpuid && (cpuid->eax & KVM_FEATURE_STEAL_TIME); + return kvm_cpu_has(X86_FEATURE_KVM_STEAL_TIME); } static void steal_time_init(struct kvm_vcpu *vcpu, uint32_t i) |