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Reset PCI host devices after hot-unplug

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When we hot-unplug a PCI host device from a guest, we should reset it.

Both managed and unmanaged devices should be reset, but only managed
devices should be re-attached.

* src/qemu_driver.c: reset devices in qemudDomainDetachHostPciDevice()
This commit is contained in:
Mark McLoughlin 2009-08-17 15:05:23 +01:00
parent 4dbecff9fb
commit 12edef9a6a
1 changed files with 13 additions and 9 deletions
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22
src/qemu_driver.c
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@ -5780,6 +5780,7 @@ static int qemudDomainDetachHostPciDevice(virConnectPtr conn,
virDomainHostdevDefPtr detach;
char *cmd, *reply;
int i, ret;
pciDevice *pci;
for (i = 0 ; i < vm->def->nhostdevs ; i++) {
unsigned domain = vm->def->hostdevs[i]->source.subsys.u.pci.domain;
@ -5848,16 +5849,19 @@ static int qemudDomainDetachHostPciDevice(virConnectPtr conn,
ret = 0;
if (detach->managed) {
pciDevice *pci = pciGetDevice(conn,
detach->source.subsys.u.pci.domain,
detach->source.subsys.u.pci.bus,
detach->source.subsys.u.pci.slot,
detach->source.subsys.u.pci.function);
if (!pci || pciReAttachDevice(conn, pci) < 0)
pci = pciGetDevice(conn,
detach->source.subsys.u.pci.domain,
detach->source.subsys.u.pci.bus,
detach->source.subsys.u.pci.slot,
detach->source.subsys.u.pci.function);
if (!pci)
ret = -1;
else {
if (pciResetDevice(conn, pci) < 0)
ret = -1;
if (pci)
pciFreeDevice(conn, pci);
if (detach->managed && pciReAttachDevice(conn, pci) < 0)
ret = -1;
pciFreeDevice(conn, pci);
}
if (i != --vm->def->nhostdevs)