diff options
| -rw-r--r-- | arch/x86/kvm/vmx.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 44e2b82f6519..f6ec898ac539 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -11876,6 +11876,17 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch) vmcs12 = get_vmcs12(vcpu); + /* + * Can't VMLAUNCH or VMRESUME a shadow VMCS. Despite the fact + * that there *is* a valid VMCS pointer, RFLAGS.CF is set + * rather than RFLAGS.ZF, and no error number is stored to the + * VM-instruction error field. + */ + if (vmcs12->hdr.shadow_vmcs) { + nested_vmx_failInvalid(vcpu); + goto out; + } + if (enable_shadow_vmcs) copy_shadow_to_vmcs12(vmx); |