selftests: kvm: introduce cpu_has_svm() check (ed881297) · Commits · 戴 / test

Many tests will want to check if the CPU is Intel or AMD in guest code, add cpu_has_svm() and put it as static inline to svm_util.h. Signed-off-by:

Vitaly Kuznetsov <vkuznets@redhat.com> Message-Id: <20200529130407.57176-1-vkuznets@redhat.com> Signed-off-by:

tools/testing/selftests/kvm/include/x86_64/svm_util.h

+10 −0

Original line number	Diff line number	Diff line
		@@ -35,4 +35,14 @@ void generic_svm_setup(struct svm_test_data svm, void guest_rip, void *guest_r
		void run_guest(struct vmcb *vmcb, uint64_t vmcb_gpa);
		void nested_svm_check_supported(void);

		static inline bool cpu_has_svm(void)
		{
		u32 eax = 0x80000001, ecx;

		asm("cpuid" :
		"=a" (eax), "=c" (ecx) : "0" (eax) : "ebx", "edx");

		return ecx & CPUID_SVM;
		}

		#endif /* SELFTEST_KVM_SVM_UTILS_H */