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Re: [Xen-devel] [Qemu-devel] [PATCH 2/2] xen:i386:pc_piix: create isa bridge specific to IGD passthrough

Sorry some urgent things always procrastinate on my response.

On 2014/10/24 21:47, Michael S. Tsirkin wrote:
On Fri, Oct 24, 2014 at 03:36:20PM +0800, Chen, Tiejun wrote:
I think the point was mostly to reserve 1f to prevent
devices from using it.
As we populate slots in order it doesn't seem to important ...

If we populate slot at !1f GFX driver can't find this ISA bridge.

Right, but I mean if no special options are used, 1f will typically
stay free without any effort on our side.


Actually based on current info we know, seems 1f is just specific to our scenario :) So I always think we can occupy that. But Paolo and you can really determine this point.


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