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KVM: selftests: x86: Use "this_cpu" prefix for cpu vendor queries

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Replace is_intel/amd_cpu helpers with this_cpu_* helpers to better
convey the intent of querying vendor of the current cpu.

Suggested-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Vishal Annapurve <vannapurve@google.com>
Link: https://lore.kernel.org/r/20230111004445.416840-2-vannapurve@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
This commit is contained in:
Vishal Annapurve
2023-01-11 00:44:43 +00:00
committed by Sean Christopherson
parent ca17899693
commit e99b0d4cc2
6 changed files with 30 additions and 33 deletions
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26
tools/testing/selftests/kvm/lib/x86_64/processor.c
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@@ -113,7 +113,7 @@ static void sregs_dump(FILE *stream, struct kvm_sregs *sregs, uint8_t indent)
bool kvm_is_tdp_enabled(void)
{
if (is_intel_cpu())
if (this_cpu_is_intel())
return get_kvm_intel_param_bool("ept");
else
return get_kvm_amd_param_bool("npt");
@@ -1006,28 +1006,6 @@ void kvm_x86_state_cleanup(struct kvm_x86_state *state)
free(state);
}
static bool cpu_vendor_string_is(const char *vendor)
{
const uint32_t *chunk = (const uint32_t *)vendor;
uint32_t eax, ebx, ecx, edx;
cpuid(0, &eax, &ebx, &ecx, &edx);
return (ebx == chunk[0] && edx == chunk[1] && ecx == chunk[2]);
}
bool is_intel_cpu(void)
{
return cpu_vendor_string_is("GenuineIntel");
}
/*
* Exclude early K5 samples with a vendor string of "AMDisbetter!"
*/
bool is_amd_cpu(void)
{
return cpu_vendor_string_is("AuthenticAMD");
}
void kvm_get_cpu_address_width(unsigned int *pa_bits, unsigned int *va_bits)
{
if (!kvm_cpu_has_p(X86_PROPERTY_MAX_PHY_ADDR)) {
@@ -1236,7 +1214,7 @@ unsigned long vm_compute_max_gfn(struct kvm_vm *vm)
max_gfn = (1ULL << (vm->pa_bits - vm->page_shift)) - 1;
/* Avoid reserved HyperTransport region on AMD processors. */
if (!is_amd_cpu())
if (!this_cpu_is_amd())
return max_gfn;
/* On parts with <40 physical address bits, the area is fully hidden */