Support USB controller hot-plug and hot-unplug.
#virsh attach-device dom usbctrl.xml
#virsh detach-device dom usbctrl.xml
usbctrl.xml example:
<controller type='usb' index='0' model='qusb2'>
Signed-off-by: Chunyan Liu <cyliu@xxxxxxxx>
---
src/libxl/libxl_driver.c | 144 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 144 insertions(+)
diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
index 069616f..d1dd160 100644
--- a/src/libxl/libxl_driver.c
+++ b/src/libxl/libxl_driver.c
@@ -3029,6 +3029,60 @@ libxlDomainAttachHostPCIDevice(libxlDriverPrivatePtr driver,
#ifdef LIBXL_HAVE_PVUSB
static int
+libxlDomainAttachControllerDevice(libxlDriverPrivatePtr driver,
+ virDomainObjPtr vm,
+ virDomainControllerDefPtr controller)
+{
+ libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
+ const char *type = virDomainControllerTypeToString(controller->type);
+ libxl_device_usbctrl usbctrl;
+ int ret = -1;
+
+ libxl_device_usbctrl_init(&usbctrl);
+
+ if (controller->type != VIR_DOMAIN_CONTROLLER_TYPE_USB) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
+ _("'%s' controller cannot be hot plugged."),
+ type);
+ goto cleanup;
+ }
+
+ if (controller->idx == -1)
+ controller->idx = virDomainControllerFindUnusedIndex(vm->def,
+ controller->type);
+
+ if (controller->opts.usbopts.ports == -1)
+ controller->opts.usbopts.ports = 8;
+
+ if (virDomainControllerFind(vm->def, controller->type, controller->idx) >= 0) {
+ virReportError(VIR_ERR_OPERATION_FAILED,
+ _("target %s:%d already exists"),
+ type, controller->idx);
+ goto cleanup;
+ }
+
+ if (VIR_REALLOC_N(vm->def->controllers, vm->def->ncontrollers + 1) < 0)
+ goto cleanup;
+
+ if (libxlMakeUSBController(controller, &usbctrl) < 0)
+ goto cleanup;
+
+ if (libxl_device_usbctrl_add(cfg->ctx, vm->def->id, &usbctrl, 0) < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("libxenlight failed to attach USB controller"));
+ goto cleanup;
+ }
+
+ virDomainControllerInsertPreAlloced(vm->def, controller);
+ ret = 0;
+
+ cleanup:
+ virObjectUnref(cfg);
+ libxl_device_usbctrl_dispose(&usbctrl);
+ return ret;
+}
+
+static int
libxlDomainAttachHostUSBDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
@@ -3263,6 +3317,12 @@ libxlDomainAttachDeviceLive(libxlDriverPrivatePtr driver,
dev->data.disk = NULL;
break;
+ case VIR_DOMAIN_DEVICE_CONTROLLER:
+ ret = libxlDomainAttachControllerDevice(driver, vm, dev->data.controller);
+ if (!ret)
+ dev->data.controller = NULL;
+ break;
+
case VIR_DOMAIN_DEVICE_NET:
ret = libxlDomainAttachNetDevice(driver, vm,
dev->data.net);
@@ -3293,6 +3353,7 @@ libxlDomainAttachDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
virDomainDiskDefPtr disk;
virDomainNetDefPtr net;
virDomainHostdevDefPtr hostdev;
+ virDomainControllerDefPtr controller;
virDomainHostdevDefPtr found;
char mac[VIR_MAC_STRING_BUFLEN];
@@ -3310,6 +3371,21 @@ libxlDomainAttachDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
dev->data.disk = NULL;
break;
+ case VIR_DOMAIN_DEVICE_CONTROLLER:
+ controller = dev->data.controller;
+ if (controller->idx != -1 &&
+ virDomainControllerFind(vmdef, controller->type,
+ controller->idx) >= 0) {
+ virReportError(VIR_ERR_OPERATION_INVALID, "%s",
+ _("Target already exists"));
+ return -1;
+ }
+
+ if (virDomainControllerInsert(vmdef, controller) < 0)
+ return -1;
+ dev->data.controller = NULL;
+ break;
+
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
if (virDomainHasNet(vmdef, net)) {
@@ -3455,6 +3531,57 @@ libxlDomainDetachHostPCIDevice(libxlDriverPrivatePtr driver,
#ifdef LIBXL_HAVE_PVUSB
static int
+libxlDomainDetachControllerDevice(libxlDriverPrivatePtr driver,
+ virDomainObjPtr vm,
+ virDomainDeviceDefPtr dev)
+{
+ int idx, ret = -1;
+ virDomainControllerDefPtr detach = NULL;
+ virDomainControllerDefPtr controller = dev->data.controller;
+ const char *type = virDomainControllerTypeToString(controller->type);
+ libxl_device_usbctrl usbctrl;
+ libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver);
+
+ libxl_device_usbctrl_init(&usbctrl);
+
+ if (controller->type != VIR_DOMAIN_CONTROLLER_TYPE_USB) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
+ _("'%s' controller cannot be hot plugged."),
+ type);
+ goto cleanup;
+ }
+
+ if ((idx = virDomainControllerFind(vm->def,
+ controller->type,
+ controller->idx)) < 0) {
+ virReportError(VIR_ERR_OPERATION_FAILED,
+ _("controller %s:%d not found"),
+ type, controller->idx);
+ goto cleanup;
+ }
+
+ detach = vm->def->controllers[idx];
+
+ if (libxlMakeUSBController(controller, &usbctrl) < 0)
+ goto cleanup;
+
+ if (libxl_device_usbctrl_remove(cfg->ctx, vm->def->id, &usbctrl, 0) < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("libxenlight failed to detach USB controller"));
+ goto cleanup;
+ }
+
+ virDomainControllerRemove(vm->def, idx);
+ ret = 0;
+
+ cleanup:
+ virDomainControllerDefFree(detach);
+ virObjectUnref(cfg);
+ libxl_device_usbctrl_dispose(&usbctrl);
+ return ret;
+}
+
+static int
libxlDomainDetachHostUSBDevice(libxlDriverPrivatePtr driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
@@ -3618,6 +3745,10 @@ libxlDomainDetachDeviceLive(libxlDriverPrivatePtr driver,
ret = libxlDomainDetachDeviceDiskLive(vm, dev);
break;
+ case VIR_DOMAIN_DEVICE_CONTROLLER:
+ ret = libxlDomainDetachControllerDevice(driver, vm, dev);
+ break;
+
case VIR_DOMAIN_DEVICE_NET:
ret = libxlDomainDetachNetDevice(driver, vm,
dev->data.net);
@@ -3652,6 +3783,7 @@ libxlDomainDetachDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
{
virDomainDiskDefPtr disk, detach;
virDomainHostdevDefPtr hostdev, det_hostdev;
+ virDomainControllerDefPtr cont, det_cont;
virDomainNetDefPtr net;
int idx;
@@ -3666,6 +3798,18 @@ libxlDomainDetachDeviceConfig(virDomainDefPtr vmdef, virDomainDeviceDefPtr dev)
virDomainDiskDefFree(detach);
break;
+ case VIR_DOMAIN_DEVICE_CONTROLLER:
+ cont = dev->data.controller;
+ if ((idx = virDomainControllerFind(vmdef, cont->type,
+ cont->idx)) < 0) {
+ virReportError(VIR_ERR_INVALID_ARG, "%s",
+ _("device not present in domain configuration"));
+ return -1;
+ }
+ det_cont = virDomainControllerRemove(vmdef, idx);
+ virDomainControllerDefFree(det_cont);
+ break;
+
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
if ((idx = virDomainNetFindIdx(vmdef, net)) < 0)
--
2.1.4
--
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