[libvirt PATCH 1/5] qemu: fail on attempt to set 'floor' if interface type is not 'network'

[Pavel Mores]

QoS 'floor' setting is documented to be only supported for interfaces of
type 'network'.  Fail with an error message on attempt to set 'floor' on
an interface of any other type.

Signed-off-by: Pavel Mores <pmores at redhat.com>
---
 src/qemu/qemu_driver.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index e69d083836..88fa56da42 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -11672,9 +11672,16 @@ qemuDomainSetInterfaceParameters(virDomainPtr dom,
                    sizeof(*newBandwidth->out));
         }
 
-        if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK &&
-            virDomainNetBandwidthUpdate(net, newBandwidth) < 0)
-            goto endjob;
+        if (net->type == VIR_DOMAIN_NET_TYPE_NETWORK) {
+            if (virDomainNetBandwidthUpdate(net, newBandwidth) < 0)
+                goto endjob;
+        } else {
+            if (bandwidth->in && bandwidth->in->floor != 0) {
+                virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
+                               _("'floor' is only supported for interface type 'network' with forward type 'nat', 'route', 'open' or none"));
+                goto endjob;
+            }
+        }
 
         if (virNetDevBandwidthSet(net->ifname, newBandwidth, false,
                                   !virDomainNetTypeSharesHostView(net)) < 0) {
-- 
2.24.1