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Re: [libvirt] [PATCH 2/6] Use -machine option for PPC64

On Thu, Dec 20, 2012 at 02:02:23PM +0800, Li Zhang wrote:
> From: Li Zhang <zhlcindy linux vnet ibm com>
> On PPC64 platform, it sets USB option in -machine option. It is
> set as the following:
>   -machine pseries,usb=off
> This will disable USB, which avoids creating one USB controller
> implicitly in the platform's initialization. Libvirt will add one
> USB controller if there is no definition in XML file. Users also can
> add one specific USB controller in the XML file as the following:
>     <controller type='usb' index='0' model='pci-ohci'>
>     </controller>

NACK, current behaviour matches libvirt on x86, where we also
add a USB controller by default.

The mechanism for disabling the default USB controlle ris
to use

     <controller type='usb' index='0' model='none'>

PPC should follow this same behaviour

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