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Re: [Xen-devel] [v5][PATCH 0/5] xen: add Intel IGD passthrough support
- To: "Michael S. Tsirkin" <mst@xxxxxxxxxx>, "Chen, Tiejun" <tiejun.chen@xxxxxxxxx>
- From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
- Date: Wed, 25 Jun 2014 11:59:21 +0200
- Cc: peter.maydell@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, stefano.stabellini@xxxxxxxxxxxxx, allen.m.kay@xxxxxxxxx, qemu-devel@xxxxxxxxxx, Kelly.Zytaruk@xxxxxxx, anthony.perard@xxxxxxxxxx, anthony@xxxxxxxxxxxxx, yang.z.zhang@xxxxxxxxx
- Delivery-date: Wed, 25 Jun 2014 09:59:42 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
Il 25/06/2014 11:55, Michael S. Tsirkin ha scritto:
> You're saying we will reserve a free BAR to address those information to
> expose to guest, but which device does this free BAR belong to? The video
> device? Or PCH/MCH?
If you just want to pass a couple of IDs, then don't, it's a waste.
But I still don't know what problem you are trying to solve,
looking at guest driver did not help.
It's not just a couple of IDs, it's also random fields of the MCH
configuration space. Grep drivers/gpu/drm/i915 for bridge_dev.
Paolo
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