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qemu: Allow the scsi-generic device in cgroup

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This adds the scsi-generic device into the device controller's
whitelist, so that it's allowed to used by the qemu process.

Signed-off-by: Han Cheng <hanc.fnst@cn.fujitsu.com>
Signed-off-by: Osier Yang <jyang@redhat.com>
This commit is contained in:
Han Cheng 2013-05-04 02:07:27 +08:00 committed by Osier Yang
parent bab6ee6b30
commit 6eb42e38e8
1 changed files with 44 additions and 2 deletions
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46
src/qemu/qemu_cgroup.c
View File

@ -31,6 +31,7 @@
#include "viralloc.h"
#include "virerror.h"
#include "domain_audit.h"
#include "virscsi.h"
#define VIR_FROM_THIS VIR_FROM_QEMU
@ -213,6 +214,33 @@ qemuSetupHostUsbDeviceCgroup(virUSBDevicePtr dev ATTRIBUTE_UNUSED,
return 0;
}
static int
qemuSetupHostScsiDeviceCgroup(virSCSIDevicePtr dev ATTRIBUTE_UNUSED,
const char *path,
void *opaque)
{
virDomainObjPtr vm = opaque;
qemuDomainObjPrivatePtr priv = vm->privateData;
int rc;
VIR_DEBUG("Process path '%s' for SCSI device", path);
rc = virCgroupAllowDevicePath(priv->cgroup, path,
virSCSIDeviceGetReadonly(dev) ?
VIR_CGROUP_DEVICE_READ :
VIR_CGROUP_DEVICE_RW);
virDomainAuditCgroupPath(vm, priv->cgroup, "allow", path,
virSCSIDeviceGetReadonly(dev) ? "r" : "rw", rc);
if (rc < 0) {
virReportSystemError(-rc,
_("Unable to allow device %s"),
path);
return -1;
}
return 0;
}
int
qemuSetupHostdevCGroup(virDomainObjPtr vm,
@ -222,6 +250,7 @@ qemuSetupHostdevCGroup(virDomainObjPtr vm,
qemuDomainObjPrivatePtr priv = vm->privateData;
virPCIDevicePtr pci = NULL;
virUSBDevicePtr usb = NULL;
virSCSIDevicePtr scsi = NULL;
char *path = NULL;
/* currently this only does something for PCI devices using vfio
@ -286,6 +315,20 @@ qemuSetupHostdevCGroup(virDomainObjPtr vm,
goto cleanup;
}
break;
case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI:
if ((scsi = virSCSIDeviceNew(dev->source.subsys.u.scsi.adapter,
dev->source.subsys.u.scsi.bus,
dev->source.subsys.u.scsi.target,
dev->source.subsys.u.scsi.unit,
dev->readonly)) == NULL)
goto cleanup;
if (virSCSIDeviceFileIterate(scsi,
qemuSetupHostScsiDeviceCgroup,
vm) < 0)
goto cleanup;
default:
break;
}
@ -295,12 +338,11 @@ qemuSetupHostdevCGroup(virDomainObjPtr vm,
cleanup:
virPCIDeviceFree(pci);
virUSBDeviceFree(usb);
virSCSIDeviceFree(scsi);
VIR_FREE(path);
return ret;
}
int
qemuTeardownHostdevCgroup(virDomainObjPtr vm,
virDomainHostdevDefPtr dev)