/* Ensure addr fits in the address set, by expanding it if needed.
* This will only grow if the flags say that we need a normal
* hot-pluggable PCI slot. If we need a different type of slot, it
* will fail.
*
* Return value:
* -1 = OOM
* 0 = no action performed
* >0 = number of buses added
*/
int
virDomainPCIAddressSetGrow(virDomainPCIAddressSetPtr addrs,
virDevicePCIAddressPtr addr,
virDomainPCIConnectFlags flags)
{
int add;
size_t i;
add = addr->bus - addrs->nbuses + 1;
i = addrs->nbuses;
if (add <= 0)
return 0;
/* auto-grow only works when we're adding plain PCI devices */
if (!(flags & VIR_PCI_CONNECT_TYPE_PCI)) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Cannot automatically add a new PCI bus for a "
"device requiring a slot other than standard PCI."));
return -1;
}
if (VIR_EXPAND_N(addrs->buses, addrs->nbuses, add) < 0)
return -1;
for (; i < addrs->nbuses; i++) {
/* Any time we auto-add a bus, we will want a multi-slot
* bus. Currently the only type of bus we will auto-add is a
* pci-bridge, which is hot-pluggable and provides standard
* PCI slots.
*/
virDomainPCIAddressBusSetModel(&addrs->buses[i],
VIR_DOMAIN_CONTROLLER_MODEL_PCI_BRIDGE);
}
return add;
}
virDomainPCIAddressSetPtr
bhyveDomainPCIAddressSetCreate(virDomainDefPtr def, unsigned int nbuses)
{
virDomainPCIAddressSetPtr addrs;
if ((addrs = virDomainPCIAddressSetAlloc(nbuses)) == NULL)
return NULL;
if (virDomainPCIAddressBusSetModel(&addrs->buses[0],
VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT) < 0)
goto error;
if (virDomainDeviceInfoIterate(def, bhyveCollectPCIAddress, addrs) < 0)
goto error;
return addrs;
error:
virDomainPCIAddressSetFree(addrs);
return NULL;
}
