Re: [PATCH v3 13/26] conf: Parse and format <target index='...'/>

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On 07/04/2017 07:32 AM, Andrea Bolognani wrote:
> On Fri, 2017-06-30 at 17:10 +0530, Shivaprasad bhat wrote:
>>> @@ -9348,6 +9351,23 @@ virDomainControllerDefParseXML(xmlNodePtr node,
>>>                   goto error;
>>>               }
>>>           }
>>> +        if (idx) {
>>> +            if (virStrToLong_i(idx, NULL, 0,
>>> +                               &def->opts.pciopts.idx) < 0) {
>>> +                virReportError(VIR_ERR_XML_ERROR,
>>> +                               _("Invalid target index '%s' in PCI controller"),
>>> +                               idx);
>>> +                goto error;
>>> +            }
>>> +            if (def->opts.pciopts.idx < 0 ||
>>> +                def->opts.pciopts.idx > 31) {
>>> +                virReportError(VIR_ERR_XML_ERROR,
>>> +                               _("PCI controller target index '%s' out of "
>>> +                                 "range - must be 0-31"),
>>> +                               idx);
>>> +                goto error;
>>> +            }
>>> +        }
>>  
>> Better to enforce def->idx == 0 to have def->opts.pciopts.idx as 0 ? That would always assure def->idx == 0 as the implicit PHB.
>>  
>> Qemu today allows "-device spapr-pci-host-bridge,index=X,id=pci.0" when X != 0, and we will generate it for implcit phb(which we normally dont)
>> when def->opts.pciopts.idx != 0 in Patch 18. Not sure what all problems/confusions could come because of this inconsistency.
> 
> Agreed.
> 
> The attached patch should be squashed into this commit to
> prevent such a configuration from being accepted. I'm also
> working on a test case for this specific configuration.
> 
> Laine, are you okay with me squashing this in and keeping
> the Reviewed-by?

Sure, that's fine with me.

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