diff options
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 7ebf08db6747..d9a4526c730c 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -3123,18 +3123,13 @@ int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) } } - if (cr4 & X86_CR4_VMXE) { - /* - * To use VMXON (and later other VMX instructions), a guest - * must first be able to turn on cr4.VMXE (see handle_vmon()). - * So basically the check on whether to allow nested VMX - * is here. We operate under the default treatment of SMM, - * so VMX cannot be enabled under SMM. Note, guest CPUID is - * intentionally ignored, it's handled by cr4_guest_rsvd_bits. - */ - if (!nested || is_smm(vcpu)) - return 1; - } + /* + * We operate under the default treatment of SMM, so VMX cannot be + * enabled under SMM. Note, whether or not VMXE is allowed at all is + * handled by kvm_valid_cr4(). + */ + if ((cr4 & X86_CR4_VMXE) && is_smm(vcpu)) + return 1; if (vmx->nested.vmxon && !nested_cr4_valid(vcpu, cr4)) return 1; |