[PATCH 04/42] KVM: selftests: Use kvm_cpu_has() in the SEV migration test
From: Sean Christopherson
Date: Fri Jun 03 2022 - 21:21:24 EST
Use kvm_cpu_has() in the SEV migration test instead of open coding
equivalent functionality using kvm_get_supported_cpuid_entry().
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
.../selftests/kvm/include/x86_64/processor.h | 2 ++
.../selftests/kvm/x86_64/sev_migrate_tests.c | 13 ++-----------
2 files changed, 4 insertions(+), 11 deletions(-)
diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h
index 59ae869814b7..24ffa7c238ff 100644
--- a/tools/testing/selftests/kvm/include/x86_64/processor.h
+++ b/tools/testing/selftests/kvm/include/x86_64/processor.h
@@ -127,6 +127,8 @@ struct kvm_x86_cpu_feature {
#define X86_FEATURE_PAUSEFILTER KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 10)
#define X86_FEATURE_PFTHRESHOLD KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 12)
#define X86_FEATURE_VGIF KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 16)
+#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)
/* CPUID.1.ECX */
#define CPUID_VMX (1ul << 5)
diff --git a/tools/testing/selftests/kvm/x86_64/sev_migrate_tests.c b/tools/testing/selftests/kvm/x86_64/sev_migrate_tests.c
index 76ba6fc80e37..56a5932165ce 100644
--- a/tools/testing/selftests/kvm/x86_64/sev_migrate_tests.c
+++ b/tools/testing/selftests/kvm/x86_64/sev_migrate_tests.c
@@ -393,23 +393,14 @@ static void test_sev_move_copy(void)
kvm_vm_free(sev_vm);
}
-#define X86_FEATURE_SEV (1 << 1)
-#define X86_FEATURE_SEV_ES (1 << 3)
-
int main(int argc, char *argv[])
{
- struct kvm_cpuid_entry2 *cpuid;
-
TEST_REQUIRE(kvm_has_cap(KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM));
TEST_REQUIRE(kvm_has_cap(KVM_CAP_VM_COPY_ENC_CONTEXT_FROM));
- cpuid = kvm_get_supported_cpuid_entry(0x80000000);
- TEST_REQUIRE(cpuid->eax >= 0x8000001f);
+ TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SEV));
- cpuid = kvm_get_supported_cpuid_entry(0x8000001f);
- TEST_REQUIRE(cpuid->eax & X86_FEATURE_SEV);
-
- have_sev_es = !!(cpuid->eax & X86_FEATURE_SEV_ES);
+ have_sev_es = kvm_cpu_has(X86_FEATURE_SEV_ES);
if (kvm_check_cap(KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM)) {
test_sev_migrate_from(/* es= */ false);
--
2.36.1.255.ge46751e96f-goog