[libvirt] [PATCH v3 08/10] qemu: Check whether hub device is busy
qemuDomainHubIsBusy is to check whether a usb device are attached to the hub
device. It will be used for hotunplugging and live device update of hub
device.
Signed-off-by: Han Han <hhan(a)redhat.com>
---
src/qemu/qemu_hotplug.c | 64 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 64 insertions(+)
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 1b6cc36bc8..ca73456260 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -5332,6 +5332,70 @@ static bool qemuDomainControllerIsBusy(virDomainObjPtr vm,
}
}
+static bool qemuDomainHubIsBusy(virDomainObjPtr vm,
+ virDomainHubDefPtr detach)
+{
+ size_t i;
+ virDomainDiskDefPtr disk;
+ virDomainHubDefPtr hub;
+ virDomainInputDefPtr input;
+ virDomainSoundDefPtr sound;
+ virDomainHostdevDefPtr hostdev;
+ virDomainRedirdevDefPtr redirdev;
+ virDomainControllerDefPtr controller;
+
+ for (i = 0; i < vm->def->ndisks; i++) {
+ disk = vm->def->disks[i];
+ if (disk->bus == VIR_DOMAIN_DISK_BUS_USB &&
+ virDomainUSBAddressIsAttachedToHub(&(disk->info), detach))
+ return true;
+ }
+
+ for (i = 0; i < vm->def->nhubs; i++) {
+ hub = vm->def->hubs[i];
+ if (virDomainUSBAddressIsAttachedToHub(&(hub->info), detach))
+ return true;
+ }
+
+ for (i = 0; i < vm->def->ninputs; i++) {
+ input = vm->def->inputs[i];
+ if (input->bus == VIR_DOMAIN_INPUT_BUS_USB &&
+ virDomainUSBAddressIsAttachedToHub(&(input->info), detach))
+ return true;
+ }
+
+ for (i = 0; i < vm->def->nsounds; i++) {
+ sound = vm->def->sounds[i];
+ if (sound->model == VIR_DOMAIN_SOUND_MODEL_USB &&
+ virDomainUSBAddressIsAttachedToHub(&(sound->info), detach))
+ return true;
+ }
+
+ for (i = 0; i < vm->def->nhostdevs; i++) {
+ hostdev = vm->def->hostdevs[i];
+ if (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+ hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB
&&
+ virDomainUSBAddressIsAttachedToHub(hostdev->info, detach))
+ return true;
+ }
+
+ for (i = 0; i < vm->def->nredirdevs; i++) {
+ redirdev = vm->def->redirdevs[i];
+ if (redirdev->bus == VIR_DOMAIN_REDIRDEV_BUS_USB &&
+ virDomainUSBAddressIsAttachedToHub(&(redirdev->info), detach))
+ return true;
+ }
+
+ for (i = 0; i < vm->def->ncontrollers; i++) {
+ controller = vm->def->controllers[i];
+ if (controller->type == VIR_DOMAIN_CONTROLLER_TYPE_CCID &&
+ virDomainUSBAddressIsAttachedToHub(&(controller->info), detach))
+ return false;
+ }
+
+ return false;
+}
+
int qemuDomainDetachControllerDevice(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainDeviceDefPtr dev,
--
2.19.1