From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Sean Christopherson <seanjc@google.com>
Subject: [PATCH 08/12] KVM: selftests: Convert vmx_pmu_caps_test to use X86_PROPERTY_*
Date: Thu, 6 Oct 2022 00:51:21 +0000 [thread overview]
Message-ID: <20221006005125.680782-9-seanjc@google.com> (raw)
In-Reply-To: <20221006005125.680782-1-seanjc@google.com>
Add X86_PROPERTY_PMU_VERSION and use it in vmx_pmu_caps_test to replace
open coded versions of the same functionality.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
.../selftests/kvm/include/x86_64/processor.h | 6 ++----
.../selftests/kvm/x86_64/vmx_pmu_caps_test.c | 19 ++-----------------
2 files changed, 4 insertions(+), 21 deletions(-)
diff --git a/tools/testing/selftests/kvm/include/x86_64/processor.h b/tools/testing/selftests/kvm/include/x86_64/processor.h
index 15200afd7dc6..209de48eb501 100644
--- a/tools/testing/selftests/kvm/include/x86_64/processor.h
+++ b/tools/testing/selftests/kvm/include/x86_64/processor.h
@@ -200,6 +200,8 @@ struct kvm_x86_cpu_property {
})
#define X86_PROPERTY_MAX_BASIC_LEAF KVM_X86_CPU_PROPERTY(0, 0, EAX, 0, 31)
+#define X86_PROPERTY_PMU_VERSION KVM_X86_CPU_PROPERTY(0xa, 0, EAX, 0, 7)
+
#define X86_PROPERTY_XSTATE_MAX_SIZE_XCR0 KVM_X86_CPU_PROPERTY(0xd, 0, EBX, 0, 31)
#define X86_PROPERTY_XSTATE_MAX_SIZE KVM_X86_CPU_PROPERTY(0xd, 0, ECX, 0, 31)
#define X86_PROPERTY_XSTATE_TILE_SIZE KVM_X86_CPU_PROPERTY(0xd, 18, EAX, 0, 31)
@@ -842,10 +844,6 @@ static inline void vcpu_set_msr(struct kvm_vcpu *vcpu, uint64_t msr_index,
TEST_ASSERT(r == 1, KVM_IOCTL_ERROR(KVM_SET_MSRS, r));
}
-static inline uint32_t kvm_get_cpuid_max_basic(void)
-{
- return kvm_get_supported_cpuid_entry(0)->eax;
-}
void kvm_get_cpu_address_width(unsigned int *pa_bits, unsigned int *va_bits);
bool vm_is_unrestricted_guest(struct kvm_vm *vm);
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c
index 069589c52f41..c280ba1e6572 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c
@@ -20,16 +20,6 @@
#define PMU_CAP_FW_WRITES (1ULL << 13)
#define PMU_CAP_LBR_FMT 0x3f
-union cpuid10_eax {
- struct {
- unsigned int version_id:8;
- unsigned int num_counters:8;
- unsigned int bit_width:8;
- unsigned int mask_length:8;
- } split;
- unsigned int full;
-};
-
union perf_capabilities {
struct {
u64 lbr_format:6;
@@ -53,11 +43,9 @@ static void guest_code(void)
int main(int argc, char *argv[])
{
- const struct kvm_cpuid_entry2 *entry_a_0;
struct kvm_vm *vm;
struct kvm_vcpu *vcpu;
int ret;
- union cpuid10_eax eax;
union perf_capabilities host_cap;
uint64_t val;
@@ -69,11 +57,8 @@ int main(int argc, char *argv[])
TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_PDCM));
- TEST_REQUIRE(kvm_get_cpuid_max_basic() >= 0xa);
- entry_a_0 = kvm_get_supported_cpuid_entry(0xa);
-
- eax.full = entry_a_0->eax;
- __TEST_REQUIRE(eax.split.version_id, "PMU is not supported by the vCPU");
+ TEST_REQUIRE(kvm_cpu_has_p(X86_PROPERTY_PMU_VERSION));
+ TEST_REQUIRE(kvm_cpu_property(X86_PROPERTY_PMU_VERSION) > 0);
/* testcase 1, set capabilities when we have PDCM bit */
vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, PMU_CAP_FW_WRITES);
--
2.38.0.rc1.362.ged0d419d3c-goog
next prev parent reply other threads:[~2022-10-06 0:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-06 0:51 [PATCH 00/12] KVM: selftests: Add X86_PROPERTY_* magic Sean Christopherson
2022-10-06 0:51 ` [PATCH 01/12] KVM: selftests: Add X86_FEATURE_PAE and use it calc "fallback" MAXPHYADDR Sean Christopherson
2022-10-06 0:51 ` [PATCH 02/12] KVM: selftests: Refactor X86_FEATURE_* framework to prep for X86_PROPERTY_* Sean Christopherson
2022-10-06 0:51 ` [PATCH 03/12] KVM: selftests: Add X86_PROPERTY_* framework to retrieve CPUID values Sean Christopherson
2022-10-06 0:51 ` [PATCH 04/12] KVM: selftests: Use X86_PROPERTY_MAX_KVM_LEAF in CPUID test Sean Christopherson
2022-10-06 0:51 ` [PATCH 05/12] KVM: selftests: Refactor kvm_cpuid_has() to prep for X86_PROPERTY_* support Sean Christopherson
2022-10-06 0:51 ` [PATCH 06/12] KVM: selftests: Add kvm_cpu_*() support for X86_PROPERTY_* Sean Christopherson
2022-10-06 0:51 ` [PATCH 07/12] KVM: selftests: Convert AMX test to use X86_PROPRETY_XXX Sean Christopherson
2022-10-06 0:51 ` Sean Christopherson [this message]
2022-10-06 0:51 ` [PATCH 09/12] KVM: selftest: Add PMU feature framework, use in PMU event filter test Sean Christopherson
2022-10-06 0:51 ` [PATCH 10/12] KVM: selftests: Add dedicated helpers for getting x86 Family and Model Sean Christopherson
2022-10-06 0:51 ` [PATCH 11/12] KVM: selftests: Add and use KVM helpers for " Sean Christopherson
2022-10-06 0:51 ` [PATCH 12/12] KVM: selftest: Drop helpers for getting specific KVM supported CPUID entry Sean Christopherson
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