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virhostdev: Unify virDomainHostdevDef to virPCIDevice translation

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There are two places where we need to create virPCIDevice from
given virDomainHostdevDef. In both places the code is duplicated.
Move them into a single function and call it from those two
places.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Michal Privoznik 2019-08-19 11:04:05 +02:00
parent 05004165e4
commit 85b938c666
1 changed files with 54 additions and 39 deletions
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93
src/util/virhostdev.c
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@ -212,6 +212,51 @@ virHostdevManagerGetDefault(void)
return virObjectRef(manager);
}
/**
* virHostdevGetPCIHostDevice:
* @hostdev: domain hostdev definition
* @pci: returned PCI device
*
* For given @hostdev which represents a PCI device construct its
* virPCIDevice representation and return it in @pci. If @hostdev
* does not represent a PCI device then @pci is set to NULL and 0
* is returned.
*
* Returns: 0 on success (@pci might be NULL though),
* -1 otherwise (with error reported).
*/
static int
virHostdevGetPCIHostDevice(const virDomainHostdevDef *hostdev,
virPCIDevicePtr *pci)
{
VIR_AUTOPTR(virPCIDevice) actual = NULL;
const virDomainHostdevSubsysPCI *pcisrc = &hostdev->source.subsys.u.pci;
*pci = NULL;
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
return 0;
actual = virPCIDeviceNew(pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function);
if (!actual)
return -1;
virPCIDeviceSetManaged(actual, hostdev->managed);
if (pcisrc->backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO)
virPCIDeviceSetStubDriver(actual, VIR_PCI_STUB_DRIVER_VFIO);
else if (pcisrc->backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN)
virPCIDeviceSetStubDriver(actual, VIR_PCI_STUB_DRIVER_XEN);
else
virPCIDeviceSetStubDriver(actual, VIR_PCI_STUB_DRIVER_KVM);
VIR_STEAL_PTR(*pci, actual);
return 0;
}
static virPCIDeviceListPtr
virHostdevGetPCIHostDeviceList(virDomainHostdevDefPtr *hostdevs, int nhostdevs)
{
@ -223,27 +268,13 @@ virHostdevGetPCIHostDeviceList(virDomainHostdevDefPtr *hostdevs, int nhostdevs)
for (i = 0; i < nhostdevs; i++) {
virDomainHostdevDefPtr hostdev = hostdevs[i];
virDomainHostdevSubsysPCIPtr pcisrc = &hostdev->source.subsys.u.pci;
VIR_AUTOPTR(virPCIDevice) pci = NULL;
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS)
continue;
if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
continue;
pci = virPCIDeviceNew(pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function);
if (!pci)
if (virHostdevGetPCIHostDevice(hostdev, &pci) < 0)
return NULL;
virPCIDeviceSetManaged(pci, hostdev->managed);
if (pcisrc->backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO)
virPCIDeviceSetStubDriver(pci, VIR_PCI_STUB_DRIVER_VFIO);
else if (pcisrc->backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN)
virPCIDeviceSetStubDriver(pci, VIR_PCI_STUB_DRIVER_XEN);
else
virPCIDeviceSetStubDriver(pci, VIR_PCI_STUB_DRIVER_KVM);
if (!pci)
continue;
if (virPCIDeviceListAdd(pcidevs, pci) < 0)
return NULL;
@ -253,7 +284,6 @@ virHostdevGetPCIHostDeviceList(virDomainHostdevDefPtr *hostdevs, int nhostdevs)
VIR_RETURN_PTR(pcidevs);
}
static int
virHostdevPCISysfsPath(virDomainHostdevDefPtr hostdev,
char **sysfs_path)
@ -1067,7 +1097,6 @@ virHostdevUpdateActivePCIDevices(virHostdevManagerPtr mgr,
const char *drv_name,
const char *dom_name)
{
virDomainHostdevDefPtr hostdev = NULL;
size_t i;
int ret = -1;
@ -1078,31 +1107,17 @@ virHostdevUpdateActivePCIDevices(virHostdevManagerPtr mgr,
virObjectLock(mgr->inactivePCIHostdevs);
for (i = 0; i < nhostdevs; i++) {
const virDomainHostdevDef *hostdev = hostdevs[i];
VIR_AUTOPTR(virPCIDevice) actual = NULL;
virDomainHostdevSubsysPCIPtr pcisrc;
hostdev = hostdevs[i];
pcisrc = &hostdev->source.subsys.u.pci;
if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS)
continue;
if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
continue;
actual = virPCIDeviceNew(pcisrc->addr.domain, pcisrc->addr.bus,
pcisrc->addr.slot, pcisrc->addr.function);
if (!actual)
if (virHostdevGetPCIHostDevice(hostdev, &actual) < 0)
goto cleanup;
virPCIDeviceSetManaged(actual, hostdev->managed);
virPCIDeviceSetUsedBy(actual, drv_name, dom_name);
if (!actual)
continue;
if (pcisrc->backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_VFIO)
virPCIDeviceSetStubDriver(actual, VIR_PCI_STUB_DRIVER_VFIO);
else if (pcisrc->backend == VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN)
virPCIDeviceSetStubDriver(actual, VIR_PCI_STUB_DRIVER_XEN);
else
virPCIDeviceSetStubDriver(actual, VIR_PCI_STUB_DRIVER_KVM);
if (virPCIDeviceSetUsedBy(actual, drv_name, dom_name) < 0)
goto cleanup;
/* Setup the original states for the PCI device */
virPCIDeviceSetUnbindFromStub(actual, hostdev->origstates.states.pci.unbind_from_stub);