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qemuDomainAttachNetDevice: pass mq and vectors for vhost-user with multiqueue

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Two reasons:
1.in none hotplug, we will pass it. We can see from libvirt function
qemuBuildVhostuserCommandLine
2.qemu will use this vetcor num to init msix table. If we don't pass, qemu
will use default value, this will cause VM can only use default value
interrupts at most.

Signed-off-by: gaohaifeng <gaohaifeng.gao@huawei.com>
This commit is contained in:
gaohaifeng 2016-12-01 14:01:18 +08:00 committed by Michal Privoznik
parent d7b97e21a7
commit f81b33b50c
1 changed files with 8 additions and 1 deletions
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9
src/qemu/qemu_hotplug.c
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@ -946,6 +946,7 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
char **vhostfdName = NULL;
int *vhostfd = NULL;
size_t vhostfdSize = 0;
size_t queueSize = 0;
char *nicstr = NULL;
char *netstr = NULL;
virNetDevVPortProfilePtr vport = NULL;
@ -1010,6 +1011,7 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
tapfdSize = vhostfdSize = net->driver.virtio.queues;
if (!tapfdSize)
tapfdSize = vhostfdSize = 1;
queueSize = tapfdSize;
if (VIR_ALLOC_N(tapfd, tapfdSize) < 0)
goto cleanup;
memset(tapfd, -1, sizeof(*tapfd) * tapfdSize);
@ -1029,6 +1031,7 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
tapfdSize = vhostfdSize = net->driver.virtio.queues;
if (!tapfdSize)
tapfdSize = vhostfdSize = 1;
queueSize = tapfdSize;
if (VIR_ALLOC_N(tapfd, tapfdSize) < 0)
goto cleanup;
memset(tapfd, -1, sizeof(*tapfd) * tapfdSize);
@ -1049,6 +1052,7 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
tapfdSize = vhostfdSize = net->driver.virtio.queues;
if (!tapfdSize)
tapfdSize = vhostfdSize = 1;
queueSize = tapfdSize;
if (VIR_ALLOC_N(tapfd, tapfdSize) < 0)
goto cleanup;
memset(tapfd, -1, sizeof(*tapfd) * tapfdSize);
@ -1079,6 +1083,9 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
break;
case VIR_DOMAIN_NET_TYPE_VHOSTUSER:
queueSize = net->driver.virtio.queues;
if (!queueSize)
queueSize = 1;
if (!qemuDomainSupportsNetdev(vm->def, priv->qemuCaps, net)) {
virReportError(VIR_ERR_INTERNAL_ERROR,
"%s", _("Netdev support unavailable"));
@ -1223,7 +1230,7 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver,
VIR_FORCE_CLOSE(vhostfd[i]);
if (!(nicstr = qemuBuildNicDevStr(vm->def, net, vlan, 0,
vhostfdSize, priv->qemuCaps)))
queueSize, priv->qemuCaps)))
goto try_remove;
qemuDomainObjEnterMonitor(driver, vm);