KVM: selftests: x86: Fix test failure on arch lbr capable platforms

On Arch LBR capable platforms, LBR_FMT in perf capability msr is 0x3f,
so the last format test will fail. Use a true invalid format(0x30) for
the test if it's running on these platforms. Opportunistically change
the file name to reflect the tests actually carried out.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
Message-Id: <20220512084046.105479-1-weijiang.yang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 114 deletions

diff --git a/tools/testing/selftests/kvm/x86_64/vmx_pmu_msrs_test.c b/tools/testing/selftests/kvm/x86_64/vmx_pmu_msrs_test.c
deleted file mode 100644
index 2454a1f2ca0c..000000000000
--- a/tools/testing/selftests/kvm/x86_64/vmx_pmu_msrs_test.c
+++ /dev/null
@@ -1,114 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * VMX-pmu related msrs test
- *
- * Copyright (C) 2021 Intel Corporation
- *
- * Test to check the effect of various CPUID settings
- * on the MSR_IA32_PERF_CAPABILITIES MSR, and check that
- * whatever we write with KVM_SET_MSR is _not_ modified
- * in the guest and test it can be retrieved with KVM_GET_MSR.
- *
- * Test to check that invalid LBR formats are rejected.
- */
-
-#define _GNU_SOURCE /* for program_invocation_short_name */
-#include <sys/ioctl.h>
-
-#include "kvm_util.h"
-#include "vmx.h"
-
-#define VCPU_ID	      0
-
-#define X86_FEATURE_PDCM	(1<<15)
-#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;
-		u64	pebs_trap:1;
-		u64	pebs_arch_reg:1;
-		u64	pebs_format:4;
-		u64	smm_freeze:1;
-		u64	full_width_write:1;
-		u64 pebs_baseline:1;
-		u64	perf_metrics:1;
-		u64	pebs_output_pt_available:1;
-		u64	anythread_deprecated:1;
-	};
-	u64	capabilities;
-};
-
-static void guest_code(void)
-{
-	wrmsr(MSR_IA32_PERF_CAPABILITIES, PMU_CAP_LBR_FMT);
-}
-
-int main(int argc, char *argv[])
-{
-	struct kvm_cpuid2 *cpuid;
-	struct kvm_cpuid_entry2 *entry_1_0;
-	struct kvm_cpuid_entry2 *entry_a_0;
-	bool pdcm_supported = false;
-	struct kvm_vm *vm;
-	int ret;
-	union cpuid10_eax eax;
-	union perf_capabilities host_cap;
-
-	host_cap.capabilities = kvm_get_feature_msr(MSR_IA32_PERF_CAPABILITIES);
-	host_cap.capabilities &= (PMU_CAP_FW_WRITES | PMU_CAP_LBR_FMT);
-
-	/* Create VM */
-	vm = vm_create_default(VCPU_ID, 0, guest_code);
-	cpuid = kvm_get_supported_cpuid();
-
-	if (kvm_get_cpuid_max_basic() >= 0xa) {
-		entry_1_0 = kvm_get_supported_cpuid_index(1, 0);
-		entry_a_0 = kvm_get_supported_cpuid_index(0xa, 0);
-		pdcm_supported = entry_1_0 && !!(entry_1_0->ecx & X86_FEATURE_PDCM);
-		eax.full = entry_a_0->eax;
-	}
-	if (!pdcm_supported) {
-		print_skip("MSR_IA32_PERF_CAPABILITIES is not supported by the vCPU");
-		exit(KSFT_SKIP);
-	}
-	if (!eax.split.version_id) {
-		print_skip("PMU is not supported by the vCPU");
-		exit(KSFT_SKIP);
-	}
-
-	/* testcase 1, set capabilities when we have PDCM bit */
-	vcpu_set_cpuid(vm, VCPU_ID, cpuid);
-	vcpu_set_msr(vm, 0, MSR_IA32_PERF_CAPABILITIES, PMU_CAP_FW_WRITES);
-
-	/* check capabilities can be retrieved with KVM_GET_MSR */
-	ASSERT_EQ(vcpu_get_msr(vm, VCPU_ID, MSR_IA32_PERF_CAPABILITIES), PMU_CAP_FW_WRITES);
-
-	/* check whatever we write with KVM_SET_MSR is _not_ modified */
-	vcpu_run(vm, VCPU_ID);
-	ASSERT_EQ(vcpu_get_msr(vm, VCPU_ID, MSR_IA32_PERF_CAPABILITIES), PMU_CAP_FW_WRITES);
-
-	/* testcase 2, check valid LBR formats are accepted */
-	vcpu_set_msr(vm, 0, MSR_IA32_PERF_CAPABILITIES, 0);
-	ASSERT_EQ(vcpu_get_msr(vm, VCPU_ID, MSR_IA32_PERF_CAPABILITIES), 0);
-
-	vcpu_set_msr(vm, 0, MSR_IA32_PERF_CAPABILITIES, host_cap.lbr_format);
-	ASSERT_EQ(vcpu_get_msr(vm, VCPU_ID, MSR_IA32_PERF_CAPABILITIES), (u64)host_cap.lbr_format);
-
-	/* testcase 3, check invalid LBR format is rejected */
-	ret = _vcpu_set_msr(vm, 0, MSR_IA32_PERF_CAPABILITIES, PMU_CAP_LBR_FMT);
-	TEST_ASSERT(ret == 0, "Bad PERF_CAPABILITIES didn't fail.");
-
-	kvm_vm_free(vm);
-}