diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 0ae28a0a7c..9a21ac10ce 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -141,6 +141,7 @@ VIR_ENUM_IMPL(virDomainHyperVMode,
               VIR_DOMAIN_HYPERV_MODE_LAST,
               "none",
               "custom",
+              "passthrough",
 );
 
 VIR_ENUM_IMPL(virDomainBoot,
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index bfbe5a2f6b..afabcd1b4d 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -158,6 +158,7 @@ VIR_ENUM_DECL(virDomainOS);
 typedef enum {
     VIR_DOMAIN_HYPERV_MODE_NONE = 0,
     VIR_DOMAIN_HYPERV_MODE_CUSTOM,
+    VIR_DOMAIN_HYPERV_MODE_PASSTHROUGH,
 
     VIR_DOMAIN_HYPERV_MODE_LAST
 } virDomainHyperVMode;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index ec6bb83bda..6d00105b24 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -6713,6 +6713,22 @@ qemuBuildCpuCommandLine(virCommand *cmd,
     }
 
     if (def->features[VIR_DOMAIN_FEATURE_HYPERV] != VIR_DOMAIN_HYPERV_MODE_NONE) {
+        switch ((virDomainHyperVMode) def->features[VIR_DOMAIN_FEATURE_HYPERV]) {
+        case VIR_DOMAIN_HYPERV_MODE_CUSTOM:
+            break;
+
+        case VIR_DOMAIN_HYPERV_MODE_PASSTHROUGH:
+            virBufferAsprintf(&buf, ",hv-%s=on", "passthrough");
+            break;
+
+        case VIR_DOMAIN_HYPERV_MODE_NONE:
+        case VIR_DOMAIN_HYPERV_MODE_LAST:
+        default:
+            virReportEnumRangeError(virDomainHyperVMode,
+                                    def->features[VIR_DOMAIN_FEATURE_HYPERV]);
+            return -1;
+        }
+
         for (i = 0; i < VIR_DOMAIN_HYPERV_LAST; i++) {
             switch ((virDomainHyperv) i) {
             case VIR_DOMAIN_HYPERV_RELAXED: