pool/libvirt
SHA256
2
0
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
12b4dbbe29
libvirt/05abd150-usb-improve-hotplug.patch
James Fehlig 12b4dbbe29 - VUL-1: Fix hotplug support for usb devices with same vendorID, 
productID
  9914477e-usb-search-funcs.patch
  05abd150-usb-improve-hotplug.patch
  bnc#766559

OBS-URL: https://build.opensuse.org/package/show/Virtualization/libvirt?expand=0&rev=211
2012-06-12 20:22:26 +00:00

326 lines
12 KiB
Diff
Raw Blame History

commit 05abd1507d66aabb6cad12eeafeb4c4d1911c585
Author: Guannan Ren <gren@redhat.com>
Date: Sun May 6 22:45:05 2012 +0800
qemu: call usb search function for hostdev initialization and hotplug
src/qemu/qemu_hostdev.c:
refactor qemuPrepareHostdevUSBDevices function, make it focus on
adding usb device to activeUsbHostdevs after check. After that,
the usb hotplug function qemuDomainAttachHostDevice also could use
it.
expand qemuPrepareHostUSBDevices to perform the usb search,
rollback on failure.
src/qemu/qemu_hotplug.c:
If there are multiple usb devices available with same vendorID and productID,
but with different value of "bus, device", we give an error to let user
use <address> to specify the desired one.
Index: libvirt-0.9.11.3/src/qemu/qemu_hostdev.c
===================================================================
--- libvirt-0.9.11.3.orig/src/qemu/qemu_hostdev.c
+++ libvirt-0.9.11.3/src/qemu/qemu_hostdev.c
@@ -565,13 +565,53 @@ qemuPrepareHostPCIDevices(struct qemud_d
int
qemuPrepareHostdevUSBDevices(struct qemud_driver *driver,
const char *name,
- virDomainHostdevDefPtr *hostdevs,
- int nhostdevs)
+ usbDeviceList *list)
{
- int ret = -1;
int i;
+ unsigned int count;
+ usbDevice *tmp;
+
+ count = usbDeviceListCount(list);
+
+ for (i = 0; i < count; i++) {
+ usbDevice *usb = usbDeviceListGet(list, i);
+ if ((tmp = usbDeviceListFind(driver->activeUsbHostdevs, usb))) {
+ const char *other_name = usbDeviceGetUsedBy(tmp);
+
+ if (other_name)
+ qemuReportError(VIR_ERR_OPERATION_INVALID,
+ _("USB device %s is in use by domain %s"),
+ usbDeviceGetName(tmp), other_name);
+ else
+ qemuReportError(VIR_ERR_OPERATION_INVALID,
+ _("USB device %s is already in use"),
+ usbDeviceGetName(tmp));
+ return -1;
+ }
+
+ usbDeviceSetUsedBy(usb, name);
+ VIR_DEBUG("Adding %03d.%03d dom=%s to activeUsbHostdevs",
+ usbDeviceGetBus(usb), usbDeviceGetDevno(usb), name);
+ /*
+ * The caller is responsible to steal these usb devices
+ * from the usbDeviceList that passed in on success,
+ * perform rollback on failure.
+ */
+ if (usbDeviceListAdd(driver->activeUsbHostdevs, usb) < 0)
+ return -1;
+ }
+ return 0;
+}
+
+static int
+qemuPrepareHostUSBDevices(struct qemud_driver *driver,
+ virDomainDefPtr def)
+{
+ int i, ret = -1;
usbDeviceList *list;
usbDevice *tmp;
+ virDomainHostdevDefPtr *hostdevs = def->hostdevs;
+ int nhostdevs = def->nhostdevs;
/* To prevent situation where USB device is assigned to two domains
* we need to keep a list of currently assigned USB devices.
@@ -586,70 +626,61 @@ qemuPrepareHostdevUSBDevices(struct qemu
*/
for (i = 0 ; i < nhostdevs ; i++) {
virDomainHostdevDefPtr hostdev = hostdevs[i];
+ usbDevice *usb = NULL;
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS)
continue;
if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB)
continue;
- /* Resolve a vendor/product to bus/device */
- if (hostdev->source.subsys.u.usb.vendor) {
- usbDevice *usb;
- usbDeviceList *devs;
+ unsigned vendor = hostdev->source.subsys.u.usb.vendor;
+ unsigned product = hostdev->source.subsys.u.usb.product;
+ unsigned bus = hostdev->source.subsys.u.usb.bus;
+ unsigned device = hostdev->source.subsys.u.usb.device;
- devs = usbFindDeviceByVendor(hostdev->source.subsys.u.usb.vendor,
- hostdev->source.subsys.u.usb.product);
+ if (vendor && bus) {
+ usb = usbFindDevice(vendor, product, bus, device);
+ } else if (vendor && !bus) {
+ usbDeviceList *devs = usbFindDeviceByVendor(vendor, product);
if (!devs)
goto cleanup;
+ if (usbDeviceListCount(devs) > 1) {
+ qemuReportError(VIR_ERR_OPERATION_FAILED,
+ _("multiple USB devices for %x:%x, "
+ "use <address> to specify one"), vendor, product);
+ usbDeviceListFree(devs);
+ goto cleanup;
+ }
usb = usbDeviceListGet(devs, 0);
usbDeviceListSteal(devs, usb);
usbDeviceListFree(devs);
- if ((tmp = usbDeviceListFind(driver->activeUsbHostdevs, usb))) {
- const char *other_name = usbDeviceGetUsedBy(tmp);
-
- if (other_name)
- qemuReportError(VIR_ERR_OPERATION_INVALID,
- _("USB device %s is in use by domain %s"),
- usbDeviceGetName(tmp), other_name);
- else
- qemuReportError(VIR_ERR_OPERATION_INVALID,
- _("USB device %s is already in use"),
- usbDeviceGetName(tmp));
- usbFreeDevice(usb);
- goto cleanup;
- }
-
hostdev->source.subsys.u.usb.bus = usbDeviceGetBus(usb);
hostdev->source.subsys.u.usb.device = usbDeviceGetDevno(usb);
- if (usbDeviceListAdd(list, usb) < 0) {
- usbFreeDevice(usb);
- goto cleanup;
- }
+ } else if (!vendor && bus) {
+ usb = usbFindDeviceByBus(bus, device);
+ }
+
+ if (!usb)
+ goto cleanup;
+ if (usbDeviceListAdd(list, usb) < 0) {
+ usbFreeDevice(usb);
+ goto cleanup;
}
}
- /* Loop 2: Mark devices in temporary list as used by @name
+ /* Mark devices in temporary list as used by @name
* and add them do driver list. However, if something goes
* wrong, perform rollback.
*/
- for (i = 0; i < usbDeviceListCount(list); i++) {
- tmp = usbDeviceListGet(list, i);
- usbDeviceSetUsedBy(tmp, name);
+ if (qemuPrepareHostdevUSBDevices(driver, def->name, list) < 0)
+ goto inactivedevs;
- VIR_DEBUG("Adding %03d.%03d dom=%s to activeUsbHostdevs",
- usbDeviceGetBus(tmp), usbDeviceGetDevno(tmp), name);
- if (usbDeviceListAdd(driver->activeUsbHostdevs, tmp) < 0) {
- usbFreeDevice(tmp);
- goto inactivedevs;
- }
- }
-
- /* Loop 3: Temporary list was successfully merged with
+ /* Loop 2: Temporary list was successfully merged with
* driver list, so steal all items to avoid freeing them
* in cleanup label.
*/
@@ -675,13 +706,6 @@ cleanup:
return ret;
}
-static int
-qemuPrepareHostUSBDevices(struct qemud_driver *driver,
- virDomainDefPtr def)
-{
- return qemuPrepareHostdevUSBDevices(driver, def->name, def->hostdevs, def->nhostdevs);
-}
-
int qemuPrepareHostDevices(struct qemud_driver *driver,
virDomainDefPtr def)
{
Index: libvirt-0.9.11.3/src/qemu/qemu_hostdev.h
===================================================================
--- libvirt-0.9.11.3.orig/src/qemu/qemu_hostdev.h
+++ libvirt-0.9.11.3/src/qemu/qemu_hostdev.h
@@ -38,8 +38,7 @@ int qemuPrepareHostdevPCIDevices(struct
int nhostdevs);
int qemuPrepareHostdevUSBDevices(struct qemud_driver *driver,
const char *name,
- virDomainHostdevDefPtr *hostdevs,
- int nhostdevs);
+ usbDeviceList *list);
int qemuPrepareHostDevices(struct qemud_driver *driver,
virDomainDefPtr def);
void qemuReattachPciDevice(pciDevice *dev, struct qemud_driver *driver);
Index: libvirt-0.9.11.3/src/qemu/qemu_hotplug.c
===================================================================
--- libvirt-0.9.11.3.orig/src/qemu/qemu_hotplug.c
+++ libvirt-0.9.11.3/src/qemu/qemu_hotplug.c
@@ -1116,11 +1116,13 @@ error:
return -1;
}
-
int qemuDomainAttachHostDevice(struct qemud_driver *driver,
virDomainObjPtr vm,
virDomainHostdevDefPtr hostdev)
{
+ usbDeviceList *list;
+ usbDevice *usb = NULL;
+
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) {
qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("hostdev mode '%s' not supported"),
@@ -1128,35 +1130,58 @@ int qemuDomainAttachHostDevice(struct qe
return -1;
}
- /* Resolve USB product/vendor to bus/device */
- if (hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB &&
- hostdev->source.subsys.u.usb.vendor) {
- usbDevice *usb;
- usbDeviceList *list;
-
- if (qemuPrepareHostdevUSBDevices(driver, vm->def->name, &hostdev, 1) < 0)
- goto error;
+ if (!(list = usbDeviceListNew()))
+ goto cleanup;
- list = usbFindDeviceByVendor(hostdev->source.subsys.u.usb.vendor,
- hostdev->source.subsys.u.usb.product);
+ if (hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) {
+ unsigned vendor = hostdev->source.subsys.u.usb.vendor;
+ unsigned product = hostdev->source.subsys.u.usb.product;
+ unsigned bus = hostdev->source.subsys.u.usb.bus;
+ unsigned device = hostdev->source.subsys.u.usb.device;
+
+ if (vendor && bus) {
+ usb = usbFindDevice(vendor, product, bus, device);
+
+ } else if (vendor && !bus) {
+ usbDeviceList *devs = usbFindDeviceByVendor(vendor, product);
+ if (!devs)
+ goto cleanup;
+
+ if (usbDeviceListCount(devs) > 1) {
+ qemuReportError(VIR_ERR_OPERATION_FAILED,
+ _("multiple USB devices for %x:%x, "
+ "use <address> to specify one"), vendor, product);
+ usbDeviceListFree(devs);
+ goto cleanup;
+ }
+ usb = usbDeviceListGet(devs, 0);
+ usbDeviceListSteal(devs, usb);
+ usbDeviceListFree(devs);
+
+ hostdev->source.subsys.u.usb.bus = usbDeviceGetBus(usb);
+ hostdev->source.subsys.u.usb.device = usbDeviceGetDevno(usb);
+
+ } else if (!vendor && bus) {
+ usb = usbFindDeviceByBus(bus, device);
+ }
+
+ if (!usb)
+ goto cleanup;
+
+ if (usbDeviceListAdd(list, usb) < 0) {
+ usbFreeDevice(usb);
+ goto cleanup;
+ }
- if (!list)
- return -1;
+ if (qemuPrepareHostdevUSBDevices(driver, vm->def->name, list) < 0)
+ goto cleanup;
- usb = usbDeviceListGet(list, 0);
usbDeviceListSteal(list, usb);
- usbDeviceListFree(list);
-
- hostdev->source.subsys.u.usb.bus = usbDeviceGetBus(usb);
- hostdev->source.subsys.u.usb.device = usbDeviceGetDevno(usb);
-
- usbFreeDevice(usb);
}
-
if (virSecurityManagerSetHostdevLabel(driver->securityManager,
vm->def, hostdev) < 0)
- return -1;
+ goto cleanup;
switch (hostdev->source.subsys.type) {
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI:
@@ -1178,6 +1203,7 @@ int qemuDomainAttachHostDevice(struct qe
goto error;
}
+ usbDeviceListFree(list);
return 0;
error:
@@ -1185,6 +1211,9 @@ error:
vm->def, hostdev) < 0)
VIR_WARN("Unable to restore host device labelling on hotplug fail");
+cleanup:
+ usbDeviceListFree(list);
+ usbDeviceListSteal(driver->activeUsbHostdevs, usb);
return -1;
}
Reference in New Issue View Git Blame Copy Permalink