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add hostdev pci backend type for xen

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Add VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN. For legacy xen, it will use "pciback" as
stub driver.
This commit is contained in:
Chunyan Liu 2014-03-06 16:44:22 +08:00 committed by Daniel P. Berrange
parent 53aba258b2
commit 98c5c53d69
8 changed files with 26 additions and 6 deletions
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1
docs/schemas/domaincommon.rng
View File

@ -3421,6 +3421,7 @@
<choice>
<value>kvm</value>
<value>vfio</value>
<value>xen</value>
</choice>
</attribute>
<empty/>

3
src/conf/domain_conf.c
View File

@ -627,7 +627,8 @@ VIR_ENUM_IMPL(virDomainHostdevSubsysPciBackend,
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_TYPE_LAST,
"default",
"kvm",
"vfio")
"vfio",
"xen")
VIR_ENUM_IMPL(virDomainHostdevCaps, VIR_DOMAIN_HOSTDEV_CAPS_TYPE_LAST,
"storage",

1
src/conf/domain_conf.h
View File

@ -415,6 +415,7 @@ typedef enum {
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT, /* detect automaticaly, prefer VFIO */
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_KVM, /* force legacy kvm style */
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO, /* force vfio */
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN, /* force legacy xen style, use pciback */
VIR_DOMAIN_HOSTDEV_PCI_BACKEND_TYPE_LAST
} virDomainHostdevSubsysPciBackendType;

9
src/libxl/libxl_domain.c
View File

@ -478,6 +478,15 @@ libxlDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
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 (hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI &&
hostdev->source.subsys.u.pci.backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT)
hostdev->source.subsys.u.pci.backend = VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN;
}
return 0;
}

3
src/qemu/qemu_command.c
View File

@ -5544,8 +5544,7 @@ qemuBuildPCIHostdevDevStr(virDomainDefPtr def,
virBufferAddLit(&buf, "vfio-pci");
break;
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT:
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_TYPE_LAST:
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("invalid PCI passthrough type '%s'"),
virDomainHostdevSubsysPciBackendTypeToString(backend));

1
src/qemu/qemu_hostdev.c
View File

@ -205,6 +205,7 @@ qemuPrepareHostdevPCICheckSupport(virDomainHostdevDefPtr *hostdevs,
break;
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN:
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_TYPE_LAST:
break;
}

4
src/qemu/qemu_hotplug.c
View File

@ -1199,9 +1199,7 @@ qemuDomainAttachHostPCIDevice(virQEMUDriverPtr driver,
virProcessSetMaxMemLock(vm->pid, memKB * 1024);
break;
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_DEFAULT:
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_KVM:
case VIR_DOMAIN_HOSTDEV_PCI_BACKEND_TYPE_LAST:
default:
break;
}

10
src/util/virhostdev.c
View File

@ -170,6 +170,12 @@ virHostdevGetPCIHostDeviceList(virDomainHostdevDefPtr *hostdevs, int nhostdevs)
virObjectUnref(list);
return NULL;
}
} else if (hostdev->source.subsys.u.pci.backend
== VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN) {
if (virPCIDeviceSetStubDriver(dev, "pciback") < 0) {
virObjectUnref(list);
return NULL;
}
} else {
if (virPCIDeviceSetStubDriver(dev, "pci-stub") < 0) {
virObjectUnref(list);
@ -819,6 +825,10 @@ virHostdevUpdateActivePCIDevices(virHostdevManagerPtr mgr,
== VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO) {
if (virPCIDeviceSetStubDriver(dev, "vfio-pci") < 0)
goto cleanup;
} else if (hostdev->source.subsys.u.pci.backend
== VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN) {
if (virPCIDeviceSetStubDriver(dev, "pciback") < 0)
goto cleanup;
} else {
if (virPCIDeviceSetStubDriver(dev, "pci-stub") < 0)
goto cleanup;