Commit b33b9c40 authored by Jim Mattson's avatar Jim Mattson Committed by Paolo Bonzini
Browse files

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: default avatarJim Mattson <jmattson@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220115052431.447232-3-jmattson@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 7ff775ac

tools/testing/selftests/kvm/lib/x86_64/processor.c

+7 −3
Original line number Diff line number Diff line
@@ -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;