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Re: [Xen-devel] [PATCH 2 of 4] xen: introduce PHYSDEVOP_get_nr_pirqs

To: Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 2 of 4] xen: introduce PHYSDEVOP_get_nr_pirqs
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Tue, 31 Aug 2010 13:46:29 +0100
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On 31/08/2010 13:46, "Stefano Stabellini" <Stefano.Stabellini@xxxxxxxxxxxxx>
wrote:

>>> That wouldn't be a good idea considering that the current
>>> PHYSDEVOP_map_pirq interface allows the guest to choose the pirq
>>> number
>> 
>> So what significance does nr_pirqs have to the guest?
>  
> the upper limit of the pirq number it might choose

Couldn't it, like, pick the smallest available? :-)



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