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SUSE:SLE-12-SP3:GA
libvirt.11411
b0d24540-libxl-iface-hostdev.patch
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File b0d24540-libxl-iface-hostdev.patch of Package libvirt.11411
commit b0d24540237404e3c840600e54109be4e5789f0a Author: Chunyan Liu <cyliu@suse.com> Date: Tue Jul 15 13:03:15 2014 +0800 libxl: support hotplug of <interface> Add code to support attach/detaching a network device. Signed-off-by: Chunyan Liu <cyliu@suse.com> Index: libvirt-1.2.5/src/libxl/libxl_domain.c =================================================================== --- libvirt-1.2.5.orig/src/libxl/libxl_domain.c +++ libvirt-1.2.5/src/libxl/libxl_domain.c @@ -482,8 +482,16 @@ libxlDomainDeviceDefPostParse(virDomainD STRNEQ(def->os.type, "hvm")) dev->data.chr->targetType = VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_XEN; - if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV) { - virDomainHostdevDefPtr hostdev = dev->data.hostdev; + if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV || + (dev->type == VIR_DOMAIN_DEVICE_NET && + dev->data.net->type == VIR_DOMAIN_NET_TYPE_HOSTDEV)) { + + virDomainHostdevDefPtr hostdev; + + if (dev->type == VIR_DOMAIN_DEVICE_NET) + hostdev = &(dev->data.net)->data.hostdev.def; + else + hostdev = dev->data.hostdev; if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI && Index: libvirt-1.2.5/src/libxl/libxl_driver.c =================================================================== --- libvirt-1.2.5.orig/src/libxl/libxl_driver.c +++ libvirt-1.2.5/src/libxl/libxl_driver.c @@ -55,6 +55,7 @@ #include "viraccessapicheck.h" #include "viratomic.h" #include "virhostdev.h" +#include "network/bridge_driver.h" #define VIR_FROM_THIS VIR_FROM_LIBXL @@ -2679,10 +2680,8 @@ static int libxlDomainAttachHostDevice(libxlDriverPrivatePtr driver, libxlDomainObjPrivatePtr priv, virDomainObjPtr vm, - virDomainDeviceDefPtr dev) + virDomainHostdevDefPtr hostdev) { - virDomainHostdevDefPtr hostdev = dev->data.hostdev; - if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, _("hostdev mode '%s' not supported"), @@ -2761,6 +2760,60 @@ libxlDomainDetachDeviceDiskLive(libxlDom } static int +libxlDomainAttachNetDevice(libxlDriverPrivatePtr driver, + libxlDomainObjPrivatePtr priv, + virDomainObjPtr vm, + virDomainNetDefPtr net) +{ + int actualType; + libxl_device_nic nic; + int ret = -1; + + /* preallocate new slot for device */ + if (VIR_REALLOC_N(vm->def->nets, vm->def->nnets + 1) < 0) + return -1; + + /* If appropriate, grab a physical device from the configured + * network's pool of devices, or resolve bridge device name + * to the one defined in the network definition. + */ + if (networkAllocateActualDevice(vm->def, net) < 0) + return -1; + + actualType = virDomainNetGetActualType(net); + + if (actualType == VIR_DOMAIN_NET_TYPE_HOSTDEV) { + /* This is really a "smart hostdev", so it should be attached + * as a hostdev (the hostdev code will reach over into the + * netdev-specific code as appropriate), then also added to + * the nets list (see out:) if successful. + */ + ret = libxlDomainAttachHostDevice(driver, priv, vm, + virDomainNetGetActualHostdev(net)); + goto out; + } + + libxl_device_nic_init(&nic); + if (libxlMakeNic(vm->def, net, &nic) < 0) + goto cleanup; + + if (libxl_device_nic_add(priv->ctx, vm->def->id, &nic, 0)) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("libxenlight failed to attach network device")); + goto cleanup; + } + + ret = 0; + + cleanup: + libxl_device_nic_dispose(&nic); + out: + if (!ret) + vm->def->nets[vm->def->nnets++] = net; + return ret; +} + +static int libxlDomainAttachDeviceLive(libxlDriverPrivatePtr driver, libxlDomainObjPrivatePtr priv, virDomainObjPtr vm, @@ -2775,8 +2828,16 @@ libxlDomainAttachDeviceLive(libxlDriverP dev->data.disk = NULL; break; + case VIR_DOMAIN_DEVICE_NET: + ret = libxlDomainAttachNetDevice(driver, priv, vm, + dev->data.net); + if (!ret) + dev->data.net = NULL; + break; + case VIR_DOMAIN_DEVICE_HOSTDEV: - ret = libxlDomainAttachHostDevice(driver, priv, vm, dev); + ret = libxlDomainAttachHostDevice(driver, priv, vm, + dev->data.hostdev); if (!ret) dev->data.hostdev = NULL; break; @@ -2795,6 +2856,7 @@ static int libxlDomainAttachDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev) { virDomainDiskDefPtr disk; + virDomainNetDefPtr net; virDomainHostdevDefPtr hostdev; virDomainHostdevDefPtr found; @@ -2811,6 +2873,14 @@ libxlDomainAttachDeviceConfig(virDomainD /* vmdef has the pointer. Generic codes for vmdef will do all jobs */ dev->data.disk = NULL; break; + + case VIR_DOMAIN_DEVICE_NET: + net = dev->data.net; + if (virDomainNetInsert(vmdef, net)) + return -1; + dev->data.net = NULL; + break; + case VIR_DOMAIN_DEVICE_HOSTDEV: hostdev = dev->data.hostdev; @@ -2933,9 +3003,8 @@ static int libxlDomainDetachHostDevice(libxlDriverPrivatePtr driver, libxlDomainObjPrivatePtr priv, virDomainObjPtr vm, - virDomainDeviceDefPtr dev) + virDomainHostdevDefPtr hostdev) { - virDomainHostdevDefPtr hostdev = dev->data.hostdev; virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys; if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) { @@ -2959,6 +3028,53 @@ libxlDomainDetachHostDevice(libxlDriverP } static int +libxlDomainDetachNetDevice(libxlDriverPrivatePtr driver, + libxlDomainObjPrivatePtr priv, + virDomainObjPtr vm, + virDomainNetDefPtr net) +{ + int detachidx; + virDomainNetDefPtr detach = NULL; + libxl_device_nic nic; + char mac[VIR_MAC_STRING_BUFLEN]; + int ret = -1; + + if ((detachidx = virDomainNetFindIdx(vm->def, net)) < 0) + return -1; + + detach = vm->def->nets[detachidx]; + + if (virDomainNetGetActualType(detach) == VIR_DOMAIN_NET_TYPE_HOSTDEV) { + /* This is really a "smart hostdev", so it should be attached as a + * hostdev, then also removed from nets list (see out:) if successful. + */ + ret = libxlDomainDetachHostDevice(driver, priv, vm, + virDomainNetGetActualHostdev(detach)); + goto out; + } + + libxl_device_nic_init(&nic); + if (libxl_mac_to_device_nic(priv->ctx, vm->def->id, + virMacAddrFormat(&detach->mac, mac), &nic)) + goto cleanup; + + if (libxl_device_nic_remove(priv->ctx, vm->def->id, &nic, 0)) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("libxenlight failed to detach network device")); + goto cleanup; + } + + ret = 0; + + cleanup: + libxl_device_nic_dispose(&nic); + out: + if (!ret) + virDomainNetRemove(vm->def, detachidx); + return ret; +} + +static int libxlDomainDetachDeviceLive(libxlDriverPrivatePtr driver, libxlDomainObjPrivatePtr priv, virDomainObjPtr vm, @@ -2971,8 +3087,14 @@ libxlDomainDetachDeviceLive(libxlDriverP ret = libxlDomainDetachDeviceDiskLive(priv, vm, dev); break; + case VIR_DOMAIN_DEVICE_NET: + ret = libxlDomainDetachNetDevice(driver, priv, vm, + dev->data.net); + break; + case VIR_DOMAIN_DEVICE_HOSTDEV: - ret = libxlDomainDetachHostDevice(driver, priv, vm, dev); + ret = libxlDomainDetachHostDevice(driver, priv, vm, + dev->data.hostdev); break; default: @@ -2991,6 +3113,7 @@ libxlDomainDetachDeviceConfig(virDomainD { virDomainDiskDefPtr disk, detach; virDomainHostdevDefPtr hostdev, det_hostdev; + virDomainNetDefPtr net; int idx; switch (dev->type) { @@ -3004,6 +3127,15 @@ libxlDomainDetachDeviceConfig(virDomainD virDomainDiskDefFree(detach); break; + case VIR_DOMAIN_DEVICE_NET: + net = dev->data.net; + if ((idx = virDomainNetFindIdx(vmdef, net)) < 0) + return -1; + + /* this is guaranteed to succeed */ + virDomainNetDefFree(virDomainNetRemove(vmdef, idx)); + break; + case VIR_DOMAIN_DEVICE_HOSTDEV: { hostdev = dev->data.hostdev; if ((idx = virDomainHostdevFind(vmdef, hostdev, &det_hostdev)) < 0) {
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