When the guest CPUID reports that EFER.LMSLE is not supported, treat the bit as reserved. Signed-off-by: Jim Mattson <jmattson@xxxxxxxxxx> --- arch/x86/kvm/x86.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 43a6a7efc6ec..26c4ca73e389 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1686,6 +1686,9 @@ static bool __kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer) if (efer & EFER_NX && !guest_cpuid_has(vcpu, X86_FEATURE_NX)) return false; + if (efer & EFER_LMSLE && guest_cpuid_has(vcpu, X86_FEATURE_NO_LMSLE)) + return false; + return true; } -- 2.37.3.968.ga6b4b080e4-goog
