From: Vitaly Kuznetsov <[email protected]> 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 <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]> --- tools/testing/selftests/kvm/include/x86_64/svm_util.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/kvm/include/x86_64/svm_util.h b/tools/testing/selftests/kvm/include/x86_64/svm_util.h index cd037917fece..b1057773206a 100644 --- a/tools/testing/selftests/kvm/include/x86_64/svm_util.h +++ b/tools/testing/selftests/kvm/include/x86_64/svm_util.h @@ -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 */ -- 2.26.2
