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

from [Stefano Stabellini] [Permanent Link][Original]
To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 2 of 4] xen: introduce PHYSDEVOP_get_nr_pirqs
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Date: Tue, 31 Aug 2010 13:24:36 +0100
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>
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On Tue, 31 Aug 2010, Keir Fraser wrote:
> Useful why? What if we'd like nr_pirqs to be per-domain dynamic in future?
> 

That wouldn't be a good idea considering that the current
PHYSDEVOP_map_pirq interface allows the guest to choose the pirq
number (unless the guest explicitely passes map.pirq == -1, but only PV
on HVM guests and qemu do it, after my series).


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