[PATCH v3 17/21] qemu: hotplug: Prevent updates to multifunction device

From: Shivaprasad G Bhat <sbhat(a)linux.vnet.ibm.com&gt; PCI hostdevs once part of the domain can't be changed. Signed-off-by: Shivaprasad G Bhat <sbhat(a)linux.vnet.ibm.com&gt; Signed-off-by: Daniel Henrique Barboza <danielhb413(a)gmail.com&gt; --- src/qemu/qemu_driver.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 3217d93a73..ce44a1455a 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -8889,6 +8889,8 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom, virDomainObjPtr vm = NULL; qemuDomainObjPrivatePtr priv; virDomainDefPtr vmdef = NULL; + virDomainDeviceDefListPtr devlist; + virDomainDeviceDefListData data = {.xmlopt = driver->xmlopt}; virDomainDeviceDefPtr dev = NULL, dev_copy = NULL; bool force = (flags & VIR_DOMAIN_DEVICE_MODIFY_FORCE) != 0; int ret = -1; @@ -8906,6 +8908,8 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom, if (!(vm = qemuDomainObjFromDomain(dom))) goto cleanup; + data.def = vm->def; + priv = vm->privateData; if (virDomainUpdateDeviceFlagsEnsureACL(dom->conn, vm->def, flags) < 0) @@ -8921,12 +8925,20 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom, !(flags & VIR_DOMAIN_AFFECT_LIVE)) parse_flags |= VIR_DOMAIN_DEF_PARSE_INACTIVE; - dev = dev_copy = virDomainDeviceDefParse(xml, vm->def, - driver->xmlopt, priv->qemuCaps, - parse_flags); - if (dev == NULL) + + devlist = qemuDomainDeviceParseXMLMany(xml, &data, priv->qemuCaps, + parse_flags); + if (!devlist) goto endjob; + if (devlist->count > 1) { + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("Update of multifunction devices is not supported")); + goto endjob; + } + + dev = dev_copy = devlist->devs[0]; + if (flags & VIR_DOMAIN_AFFECT_CONFIG && flags & VIR_DOMAIN_AFFECT_LIVE) { /* If we are affecting both CONFIG and LIVE -- 2.26.2