X86_FEATURE_AMD_IBRS
if (cpu_has(c, X86_FEATURE_AMD_IBRS)) {
boot_cpu_has(X86_FEATURE_AMD_IBRS))
kvm_cpu_cap_set(X86_FEATURE_AMD_IBRS);
guest_cpu_cap_has(vcpu, X86_FEATURE_AMD_IBRS) ||
guest_cpu_cap_has(vcpu, X86_FEATURE_AMD_IBRS))