From 70a29b378a397f6f4571c95b9d3cbba711a90859 Mon Sep 17 00:00:00 2001
From: Laine Stump <laine@redhat.com>
Date: Thu, 12 Sep 2019 21:22:30 -0400
Subject: [PATCH] qemu: call common NetDef validation for hotplug and device
 update

qemuDomainAttachNetDevice() (hotplug) previously had some of the
validation that is in qemuDomainValidateActualNetDef(), but it was
incomplete. qemuDomainChangeNet() had none of that validation, but it
is all appropriate in both cases.

This is the final piece of a previously partial resolution to
https://bugzilla.redhat.com/1502754

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
 src/qemu/qemu_hotplug.c | 32 ++++++++------------------------
 1 file changed, 8 insertions(+), 24 deletions(-)

diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 16070f2a57..cf0d46fee9 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -1188,32 +1188,11 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
             goto cleanup;
     }
 
-    actualType = virDomainNetGetActualType(net);
-
-    /* Currently only TAP/macvtap devices supports multiqueue. */
-    if (net->driver.virtio.queues > 0 &&
-        !(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
-          actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
-          actualType == VIR_DOMAIN_NET_TYPE_DIRECT ||
-          actualType == VIR_DOMAIN_NET_TYPE_ETHERNET ||
-          actualType == VIR_DOMAIN_NET_TYPE_VHOSTUSER)) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                       _("Multiqueue network is not supported for: %s"),
-                       virDomainNetTypeToString(actualType));
+    /* final validation now that we have full info on the type */
+    if (qemuDomainValidateActualNetDef(net, priv->qemuCaps) < 0)
         return -1;
-    }
 
-    /* and only TAP devices support nwfilter rules */
-    if (net->filter &&
-        !(actualType == VIR_DOMAIN_NET_TYPE_NETWORK ||
-          actualType == VIR_DOMAIN_NET_TYPE_BRIDGE ||
-          actualType == VIR_DOMAIN_NET_TYPE_ETHERNET)) {
-        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-                       _("filterref is not supported for "
-                         "network interfaces of type %s"),
-                       virDomainNetTypeToString(actualType));
-        return -1;
-    }
+    actualType = virDomainNetGetActualType(net);
 
     if (qemuAssignDeviceNetAlias(vm->def, net, -1) < 0)
         goto cleanup;
@@ -3542,6 +3521,7 @@ qemuDomainChangeNet(virQEMUDriverPtr driver,
                     virDomainObjPtr vm,
                     virDomainDeviceDefPtr dev)
 {
+    qemuDomainObjPrivatePtr priv = vm->privateData;
     virDomainNetDefPtr newdev = dev->data.net;
     virDomainNetDefPtr *devslot = NULL;
     virDomainNetDefPtr olddev;
@@ -3749,6 +3729,10 @@ qemuDomainChangeNet(virQEMUDriverPtr driver,
             goto cleanup;
     }
 
+    /* final validation now that we have full info on the type */
+    if (qemuDomainValidateActualNetDef(newdev, priv->qemuCaps) < 0)
+        goto cleanup;
+
     newType = virDomainNetGetActualType(newdev);
 
     if (newType == VIR_DOMAIN_NET_TYPE_HOSTDEV) {
-- 
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