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Re: [Qemu-devel] [PATCH 0/5] xen: add Intel IGD passthrough support
From: |
Kevin O'Connor |
Subject: |
Re: [Qemu-devel] [PATCH 0/5] xen: add Intel IGD passthrough support |
Date: |
Fri, 4 Apr 2014 18:46:05 -0400 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Feb 21, 2014 at 02:44:08PM +0800, Yang Zhang wrote:
> From: Yang Zhang <address@hidden>
>
> The following patches are ported from Xen Qemu-traditional branch which are
> adding Intel IGD passthrough supporting to Qemu upstream.
>
> To pass through IGD to guest, user need to add following lines in Xen config
> file:
> gfx_passthru=1
> pci=['00:address@hidden']
>
> Besides, since Xen + Qemu upstream is requiring seabios, user also need to
> recompile seabios with CONFIG_OPTIONROMS_DEPLOYED=y to allow IGD pass through
> successfully:
I'm not familiar with the Xen parts of your patch series. However, I
don't think one should be compiling SeaBIOS with
CONFIG_OPTIONROMS_DEPLOYED enabled. That option was for very old
versions of Bochs and QEMU that did not support fetching of optionroms
directly from PCI config space nor from fw_cfg.
That compile time option is no longer well supported and it may be
removed in the future. I suggest looking at getting one of the other
mechanisms working instead of using CONFIG_OPTIONROMS_DEPLOYED.
-Kevin
- Re: [Qemu-devel] [PATCH 0/5] xen: add Intel IGD passthrough support,
Kevin O'Connor <=