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| author |   Jim Mattson <jmattson@google.com> | 2022-01-14 21:24:27 -0800 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2022-01-19 12:11:40 -0500 |
| commit | b33b9c407861985713ca18cc9ea05b7540210ad4 (patch) | |
| tree | 81b799787678110e0a27446316eb47c2e0bbbaa2 /tools/testing/selftests/kvm/lib | |
| parent | KVM: x86/pmu: Use binary search to check filtered events (diff) | |
| download | linux-dev-b33b9c407861985713ca18cc9ea05b7540210ad4.tar.xz linux-dev-b33b9c407861985713ca18cc9ea05b7540210ad4.zip | |
selftests: kvm/x86: Parameterize the CPUID vendor string check
Refactor is_intel_cpu() to make it easier to reuse the bulk of the
code for other vendors in the future.
Signed-off-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220115052431.447232-3-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'tools/testing/selftests/kvm/lib')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/x86_64/processor.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index d61e2326dc85..308a1fe687f1 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -1253,10 +1253,10 @@ void kvm_x86_state_cleanup(struct kvm_x86_state *state) free(state); } -bool is_intel_cpu(void) +static bool cpu_vendor_string_is(const char *vendor) { + const uint32_t *chunk = (const uint32_t *)vendor; int eax, ebx, ecx, edx; - const uint32_t *chunk; const int leaf = 0; __asm__ __volatile__( @@ -1265,10 +1265,14 @@ bool is_intel_cpu(void) "=c"(ecx), "=d"(edx) : /* input */ "0"(leaf), "2"(0)); - chunk = (const uint32_t *)("GenuineIntel"); return (ebx == chunk[0] && edx == chunk[1] && ecx == chunk[2]); } +bool is_intel_cpu(void) +{ + return cpu_vendor_string_is("GenuineIntel"); +} + uint32_t kvm_get_cpuid_max_basic(void) { return kvm_get_supported_cpuid_entry(0)->eax; |