diff options
| -rw-r--r-- | arch/x86/kvm/hyperv.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index ce057827da03..3d6b448ab18f 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -2103,6 +2103,15 @@ static bool hv_check_hypercall_access(struct kvm_vcpu_hv *hv_vcpu, u16 code) return hv_vcpu->cpuid_cache.features_ebx & HV_POST_MESSAGES; case HVCALL_SIGNAL_EVENT: return hv_vcpu->cpuid_cache.features_ebx & HV_SIGNAL_EVENTS; + case HVCALL_POST_DEBUG_DATA: + case HVCALL_RETRIEVE_DEBUG_DATA: + case HVCALL_RESET_DEBUG_SESSION: + /* + * Return 'true' when SynDBG is disabled so the resulting code + * will be HV_STATUS_INVALID_HYPERCALL_CODE. + */ + return !kvm_hv_is_syndbg_enabled(hv_vcpu->vcpu) || + hv_vcpu->cpuid_cache.features_ebx & HV_DEBUGGING; default: break; } |