diff options
Diffstat (limited to 'arch/x86/kvm/svm/hyperv.c')
| -rw-r--r-- | arch/x86/kvm/svm/hyperv.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm/hyperv.c b/arch/x86/kvm/svm/hyperv.c index 088f6429b24c..4f24dcb45116 100644 --- a/arch/x86/kvm/svm/hyperv.c +++ b/arch/x86/kvm/svm/hyperv.c @@ -10,8 +10,13 @@ void svm_hv_inject_synthetic_vmexit_post_tlb_flush(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); + /* + * The exit code used by Hyper-V for software-defined exits is reserved + * by AMD specifically for such use cases. + */ + BUILD_BUG_ON(HV_SVM_EXITCODE_ENL != SVM_EXIT_SW); + svm->vmcb->control.exit_code = HV_SVM_EXITCODE_ENL; - svm->vmcb->control.exit_code_hi = 0; svm->vmcb->control.exit_info_1 = HV_SVM_ENL_EXITCODE_TRAP_AFTER_FLUSH; svm->vmcb->control.exit_info_2 = 0; nested_svm_vmexit(svm); |