KVM_CPUID_ECX
TEST_ASSERT_EQ(feature.f.reg, KVM_CPUID_ECX);
KVM_CPUID_##__reg == KVM_CPUID_ECX); \
&gprs[KVM_CPUID_ECX], &gprs[KVM_CPUID_EDX]);
GUEST_ASSERT(feature.f.reg == KVM_CPUID_ECX);
[KVM_CPUID_ECX] = X86_FEATURE_OSXSAVE.index,
"+c" (regs[KVM_CPUID_ECX]),