[libvirt] [PATCH v3 5/5] qemu: auto-add bridges and allow using them

Ján Tomko jtomko at redhat.com
Tue Apr 23 12:48:03 UTC 2013


On 04/23/2013 12:24 AM, Eric Blake wrote:
> On 04/22/2013 12:43 PM, Ján Tomko wrote:
>>  qemuDomainPCIAddressGetNextSlot(qemuDomainPCIAddressSetPtr addrs,
>>                                  virDevicePCIAddressPtr next_addr)
>>  {
>> -    virDevicePCIAddress tmp_addr = addrs->lastaddr;
>> -    int i;
>> -    char *addr;
>> +    virDevicePCIAddress a = addrs->lastaddr;
>>  
>> -    tmp_addr.slot++;
>> -    for (i = 0; i < QEMU_PCI_ADDRESS_SLOT_LAST; i++, tmp_addr.slot++) {
>> -        if (QEMU_PCI_ADDRESS_SLOT_LAST <= tmp_addr.slot) {
>> -            tmp_addr.slot = 0;
>> -        }
>> +    if (addrs->nbuses == 0) {
>> +        virReportError(VIR_ERR_XML_ERROR, "%s", _("No PCI buses available"));
>> +        return -1;
>> +    }
> 
> addrs->nbuses should always be >= 1, now that we allocate it, right?  Is
> it possible to hit this error?

It will be 0 when there is no PCI controller present and we'll hit this
error when someone tries to use a PCI device on a machine with no PCI bus.




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