Re: [PATCH RFC] auto-create pci-bridge controller info

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On Mon, Jan 21, 2013 at 02:04:00PM +0800, liguang wrote:
> if some devices specify a pci bus number that
> haven't been defined by a pci-bridge controller
> then fill the required correct controller info
> silently.
> it based on previous add pci-bridge support patches,
> https://www.redhat.com/archives/libvir-list/2013-January/msg00577.html
> 
> Signed-off-by: liguang <lig.fnst@xxxxxxxxxxxxxx>
> ---
>  src/conf/domain_conf.c |   57 ++++++++++++++++++++++++++++++++++++++++++++++++
>  1 files changed, 57 insertions(+), 0 deletions(-)
> 
> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index 8ebe77d..988e4f2 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -11756,6 +11756,60 @@ virDomainDefMaybeAddSmartcardController(virDomainDefPtr def)
>  }
>  
>  
> +static int
> +virDomainDefMaybeAddPcibridgeController(virDomainDefPtr def)
> +{
> +    int i, idx = 0;
> +
> +    for (i = 0; i < def->nnets; i++) {
> +        if (def->nets[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI)
> +            continue;
> +        idx = def->nets[i]->info.addr.pci.bus;
> +        if (virDomainDefMaybeAddController(def,
> +                                           VIR_DOMAIN_CONTROLLER_TYPE_PCIBRIDGE,
> +                                           idx) < 0)
> +            return -1;
> +    }
> +
> +    for (i = 0; i < def->nsounds; i++) {
> +        if (def->sounds[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI)
> +            continue;
> +        idx = def->sounds[i]->info.addr.pci.bus;
> +        if (virDomainDefMaybeAddController(def,
> +                                           VIR_DOMAIN_CONTROLLER_TYPE_PCIBRIDGE,
> +                                           idx) < 0)
> +            return -1;
> +    }
> +
> +    for (i = 0; i < def->nvideos; i++) {
> +        if (def->videos[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI)
> +            continue;
> +        idx = def->videos[i]->info.addr.pci.bus;
> +        if (virDomainDefMaybeAddController(def,
> +                                           VIR_DOMAIN_CONTROLLER_TYPE_PCIBRIDGE,
> +                                           idx) < 0)
> +            return -1;
> +    }
> +
> +    if (def->watchdog->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI)
> +        idx = def->watchdog->info.addr.pci.bus;
> +
> +    if (virDomainDefMaybeAddController(def,
> +                                       VIR_DOMAIN_CONTROLLER_TYPE_PCIBRIDGE,
> +                                       idx) < 0)
> +        return -1;
> +
> +    if (def->memballoon->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI)
> +        idx = def->memballoon->info.addr.pci.bus;
> +
> +    if (virDomainDefMaybeAddController(def,
> +                                       VIR_DOMAIN_CONTROLLER_TYPE_PCIBRIDGE,
> +                                       idx) < 0)
> +        return -1;
> +
> +    return 0;
> +}
> +

You're missing quite a few device types here - 'disks' (eg virtio-blk uses
PCI addresses), 'controllers' (eg USB controllers use PCI addresses),
hostdevs (eg PCI host device passthrough), fss (virtio-9p filesystem uses
PCI addresses).

Regards,
Daniel
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