diff options
| -rw-r--r-- | arch/x86/kvm/svm.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 116e0341bf4c..a0e5c7e26104 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2014,6 +2014,14 @@ static bool nested_svm_vmrun_msrpm(struct vcpu_svm *svm) return true; } +static bool nested_vmcb_checks(struct vmcb *vmcb) +{ + if ((vmcb->control.intercept & (1ULL << INTERCEPT_VMRUN)) == 0) + return false; + + return true; +} + static bool nested_svm_vmrun(struct vcpu_svm *svm) { struct vmcb *nested_vmcb; @@ -2028,6 +2036,17 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm) if (!nested_vmcb) return false; + if (!nested_vmcb_checks(nested_vmcb)) { + nested_vmcb->control.exit_code = SVM_EXIT_ERR; + nested_vmcb->control.exit_code_hi = 0; + nested_vmcb->control.exit_info_1 = 0; + nested_vmcb->control.exit_info_2 = 0; + + nested_svm_unmap(page); + + return false; + } + trace_kvm_nested_vmrun(svm->vmcb->save.rip - 3, vmcb_gpa, nested_vmcb->save.rip, nested_vmcb->control.int_ctl, |