[libvirt] [PATCH v13 02/49] qemu: reuse hostdev interfaces to avoid duplicate
Chunyan Liu
cyliu at suse.com
Sat Mar 1 06:28:57 UTC 2014
Same logic of preparing/reattaching hostdevs could be used in attach/detach
hotplug places, so reuse hostdev interfaces to avoid duplicate, also for later
extracting general code to common library.
Signed-off-by: Chunyan Liu <cyliu at suse.com>
---
src/qemu/qemu_hostdev.c | 8 +++---
src/qemu/qemu_hostdev.h | 11 +++++++-
src/qemu/qemu_hotplug.c | 61 +++-------------------------------------------
3 files changed, 18 insertions(+), 62 deletions(-)
diff --git a/src/qemu/qemu_hostdev.c b/src/qemu/qemu_hostdev.c
index e4f6b1b..e9c33f8 100644
--- a/src/qemu/qemu_hostdev.c
+++ b/src/qemu/qemu_hostdev.c
@@ -847,7 +847,7 @@ cleanup:
int
-qemuPrepareHostdevUSBDevices(virQEMUDriverPtr driver,
+qemuPrepareHostdevUSBDevices(virHostdevManagerPtr mgr,
const char *name,
virUSBDeviceListPtr list)
{
@@ -991,7 +991,7 @@ out:
}
-static int
+int
qemuPrepareHostUSBDevices(virQEMUDriverPtr driver,
virDomainDefPtr def,
bool coldBoot)
@@ -1217,7 +1217,7 @@ qemuPrepareHostDevices(virQEMUDriverPtr driver,
* are locked
*/
void
-qemuReattachPciDevice(virPCIDevicePtr dev, virQEMUDriverPtr driver)
+qemuReattachPciDevice(virPCIDevicePtr dev, QEMUDriverPtr driver)
{
int retries = 100;
@@ -1333,7 +1333,7 @@ cleanup:
}
-static void
+void
qemuDomainReAttachHostUsbDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
diff --git a/src/qemu/qemu_hostdev.h b/src/qemu/qemu_hostdev.h
index ffb3167..1567c1d 100644
--- a/src/qemu/qemu_hostdev.h
+++ b/src/qemu/qemu_hostdev.h
@@ -47,6 +47,10 @@ int qemuFindHostdevUSBDevice(virDomainHostdevDefPtr hostdev,
int qemuPrepareHostdevUSBDevices(virQEMUDriverPtr driver,
const char *name,
virUSBDeviceListPtr list);
+int
+qemuPrepareHostUSBDevices(virQEMUDriverPtr driver,
+ virDomainDefPtr def,
+ bool coldBoot);
int qemuPrepareHostdevSCSIDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
@@ -55,11 +59,16 @@ int qemuPrepareHostDevices(virQEMUDriverPtr driver,
virDomainDefPtr def,
virQEMUCapsPtr qemuCaps,
bool coldBoot);
+void qemuReattachPciDevice(virPCIDevicePtr dev, virQEMUDriverPtr driver);
+void
+qemuDomainReAttachHostUsbDevices(virQEMUDriverPtr driver,
+ const char *name,
+ virDomainHostdevDefPtr *hostdevs,
+ int nhostdevs);
void qemuDomainReAttachHostScsiDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
int nhostdevs);
-void qemuReattachPciDevice(virPCIDevicePtr dev, virQEMUDriverPtr driver);
void qemuDomainReAttachHostdevDevices(virQEMUDriverPtr driver,
const char *name,
virDomainHostdevDefPtr *hostdevs,
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 6703c92..5546693 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -1454,28 +1454,16 @@ qemuDomainAttachHostUsbDevice(virQEMUDriverPtr driver,
virDomainHostdevDefPtr hostdev)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
- virUSBDeviceList *list = NULL;
- virUSBDevicePtr usb = NULL;
char *devstr = NULL;
bool added = false;
bool teardowncgroup = false;
bool teardownlabel = false;
int ret = -1;
- if (qemuFindHostdevUSBDevice(hostdev, true, &usb) < 0)
- return -1;
-
- if (!(list = virUSBDeviceListNew()))
- goto cleanup;
-
- if (virUSBDeviceListAdd(list, usb) < 0)
- goto cleanup;
-
- if (qemuPrepareHostdevUSBDevices(driver, vm->def->name, list) < 0)
+ if (qemuPrepareHostUSBDevices(driver, vm->def, 0) < 0)
goto cleanup;
added = true;
- virUSBDeviceListSteal(list, usb);
if (qemuSetupHostdevCGroup(vm, hostdev) < 0)
goto cleanup;
@@ -1520,13 +1508,8 @@ cleanup:
vm->def, hostdev, NULL) < 0)
VIR_WARN("Unable to restore host device labelling on hotplug fail");
if (added)
- virUSBDeviceListSteal(driver->activeUsbHostdevs, usb);
+ qemuDomainReAttachHostUsbDevices(driver, vm->def->name, &hostdev, 1);
}
- if (list && usb &&
- !virUSBDeviceListFind(list, usb) &&
- !virUSBDeviceListFind(driver->activeUsbHostdevs, usb))
- virUSBDeviceFree(usb);
- virObjectUnref(list);
VIR_FREE(devstr);
return ret;
}
@@ -2531,29 +2514,7 @@ qemuDomainRemovePCIHostDevice(virQEMUDriverPtr driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
- virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
- virPCIDevicePtr pci;
- virPCIDevicePtr activePci;
-
- virObjectLock(driver->activePciHostdevs);
- virObjectLock(driver->inactivePciHostdevs);
- pci = virPCIDeviceNew(subsys->u.pci.addr.domain, subsys->u.pci.addr.bus,
- subsys->u.pci.addr.slot, subsys->u.pci.addr.function);
- if (pci) {
- activePci = virPCIDeviceListSteal(driver->activePciHostdevs, pci);
- if (activePci &&
- virPCIDeviceReset(activePci, driver->activePciHostdevs,
- driver->inactivePciHostdevs) == 0) {
- qemuReattachPciDevice(activePci, driver);
- } else {
- /* reset of the device failed, treat it as if it was returned */
- virPCIDeviceFree(activePci);
- }
- virPCIDeviceFree(pci);
- }
- virObjectUnlock(driver->activePciHostdevs);
- virObjectUnlock(driver->inactivePciHostdevs);
-
+ qemuDomainReAttachHostdevDevices(driver, vm->def->name, &hostdev, 1);
qemuDomainReleaseDeviceAddress(vm, hostdev->info, NULL);
}
@@ -2562,19 +2523,7 @@ qemuDomainRemoveUSBHostDevice(virQEMUDriverPtr driver,
virDomainObjPtr vm ATTRIBUTE_UNUSED,
virDomainHostdevDefPtr hostdev)
{
- virDomainHostdevSubsysPtr subsys = &hostdev->source.subsys;
- virUSBDevicePtr usb;
-
- usb = virUSBDeviceNew(subsys->u.usb.bus, subsys->u.usb.device, NULL);
- if (usb) {
- virObjectLock(driver->activeUsbHostdevs);
- virUSBDeviceListDel(driver->activeUsbHostdevs, usb);
- virObjectUnlock(driver->activeUsbHostdevs);
- virUSBDeviceFree(usb);
- } else {
- VIR_WARN("Unable to find device %03d.%03d in list of used USB devices",
- subsys->u.usb.bus, subsys->u.usb.device);
- }
+ qemuDomainReAttachHostUsbDevices(driver, vm->def->name, &hostdev, 1);
}
static void
@@ -2622,8 +2571,6 @@ qemuDomainRemoveHostDevice(virQEMUDriverPtr driver,
virDomainAuditHostdev(vm, hostdev, "detach", true);
- qemuDomainHostdevNetConfigRestore(hostdev, cfg->stateDir);
-
switch ((enum virDomainHostdevSubsysType) hostdev->source.subsys.type) {
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI:
qemuDomainRemovePCIHostDevice(driver, vm, hostdev);
--
1.6.0.2
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