[PATCH 15/42] KVM: selftests: Use kvm_cpu_has() for nSVM soft INT injection test

From: Sean Christopherson
Date: Fri Jun 03 2022 - 21:22:48 EST


Use kvm_cpu_has() to query for NRIPS support instead of open coding
equivalent functionality using kvm_get_supported_cpuid_entry().

Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
tools/testing/selftests/kvm/include/x86_64/processor.h | 3 ---
.../selftests/kvm/x86_64/svm_nested_soft_inject_test.c | 7 ++-----
2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h
index 4701798736cf..f4345961d447 100644
--- a/tools/testing/selftests/kvm/include/x86_64/processor.h
+++ b/tools/testing/selftests/kvm/include/x86_64/processor.h
@@ -162,9 +162,6 @@ struct kvm_x86_cpu_feature {
#define CPUID_XSAVE (1ul << 26)
#define CPUID_OSXSAVE (1ul << 27)

-/* CPUID.0x8000_000A.EDX */
-#define CPUID_NRIPS BIT(3)
-
/* Page table bitfield declarations */
#define PTE_PRESENT_MASK BIT_ULL(0)
#define PTE_WRITABLE_MASK BIT_ULL(1)
diff --git a/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c b/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c
index 3c21b997fe3a..edf7f2378c76 100644
--- a/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c
+++ b/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c
@@ -195,16 +195,13 @@ static void run_test(bool is_nmi)

int main(int argc, char *argv[])
{
- struct kvm_cpuid_entry2 *cpuid;
-
/* Tell stdout not to buffer its content */
setbuf(stdout, NULL);

TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SVM));

- cpuid = kvm_get_supported_cpuid_entry(0x8000000a);
- TEST_ASSERT(cpuid->edx & CPUID_NRIPS,
- "KVM with nSVM is supposed to unconditionally advertise nRIP Save\n");
+ TEST_ASSERT(kvm_cpu_has(X86_FEATURE_NRIPS),
+ "KVM with nSVM is supposed to unconditionally advertise nRIP Save");

atomic_init(&nmi_stage, 0);

--
2.36.1.255.ge46751e96f-goog