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From: Kevin O'Connor <kevin@koconnor.net>
To: Yang Zhang <yang.z.zhang@intel.com>
Cc: peter.maydell@linaro.org, xen-devel@lists.xensource.com,
	stefano.stabellini@eu.citrix.com, weidong.han@intel.com,
	allen.m.kay@intel.com, qemu-devel@nongnu.org,
	jean.guyader@eu.citrix.com, anthony@codemonkey.ws,
	anthony.perard@citrix.com
Subject: Re: [Qemu-devel] [PATCH 0/5] xen: add Intel IGD passthrough support
Date: Fri, 4 Apr 2014 18:46:05 -0400	[thread overview]
Message-ID: <20140404224605.GA10732@morn.localdomain> (raw)
In-Reply-To: <1392965053-1069-1-git-send-email-yang.z.zhang@intel.com>

On Fri, Feb 21, 2014 at 02:44:08PM +0800, Yang Zhang wrote:
> From: Yang Zhang <yang.z.zhang@Intel.com>
> 
> 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=['00:02.0@2']
> 
> 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

WARNING: multiple messages have this Message-ID (diff)
From: Kevin O'Connor <kevin@koconnor.net>
To: Yang Zhang <yang.z.zhang@intel.com>
Cc: peter.maydell@linaro.org, xen-devel@lists.xensource.com,
	stefano.stabellini@eu.citrix.com, weidong.han@intel.com,
	allen.m.kay@intel.com, qemu-devel@nongnu.org,
	jean.guyader@eu.citrix.com, anthony@codemonkey.ws,
	anthony.perard@citrix.com
Subject: Re: [PATCH 0/5] xen: add Intel IGD passthrough support
Date: Fri, 4 Apr 2014 18:46:05 -0400	[thread overview]
Message-ID: <20140404224605.GA10732@morn.localdomain> (raw)
In-Reply-To: <1392965053-1069-1-git-send-email-yang.z.zhang@intel.com>

On Fri, Feb 21, 2014 at 02:44:08PM +0800, Yang Zhang wrote:
> From: Yang Zhang <yang.z.zhang@Intel.com>
> 
> 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=['00:02.0@2']
> 
> 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

  parent reply	other threads:[~2014-04-04 22:46 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-21  6:44 [Qemu-devel] [PATCH 0/5] xen: add Intel IGD passthrough support Yang Zhang
2014-02-21  6:44 ` Yang Zhang
2014-02-21  6:44 ` [Qemu-devel] [PATCH 1/5] xen, gfx passthrough: basic graphics " Yang Zhang
2014-02-21  6:44   ` Yang Zhang
2014-03-21 16:24   ` [Qemu-devel] " Anthony PERARD
2014-03-21 16:24     ` Anthony PERARD
2014-05-09  7:27     ` [Qemu-devel] " Zhang, Yang Z
2014-05-09  7:27       ` Zhang, Yang Z
2014-04-02 15:19   ` [Qemu-devel] [Xen-devel] " Zytaruk, Kelly
2014-04-02 15:19     ` Zytaruk, Kelly
2014-02-21  6:44 ` [Qemu-devel] [PATCH 2/5] xen, gfx passthrough: reserve 00:02.0 for INTEL IGD Yang Zhang
2014-02-21  6:44   ` Yang Zhang
2014-03-21 17:26   ` [Qemu-devel] " Anthony PERARD
2014-03-21 17:26     ` Anthony PERARD
2014-02-21  6:44 ` [Qemu-devel] [PATCH 3/5] xen, gfx passthrough: create intel isa bridge Yang Zhang
2014-02-21  6:44   ` Yang Zhang
2014-02-21  6:44 ` [Qemu-devel] [PATCH 4/5] xen, gfx passthrough: support Intel IGD passthrough with VT-D Yang Zhang
2014-02-21  6:44   ` Yang Zhang
2014-03-27 18:21   ` [Qemu-devel] " Stefano Stabellini
2014-03-27 18:21     ` Stefano Stabellini
2014-03-27 19:10     ` [Qemu-devel] " Michael S. Tsirkin
2014-03-27 19:10       ` Michael S. Tsirkin
2014-02-21  6:44 ` [Qemu-devel] [PATCH 5/5] xen, gfx passthrough: add opregion mapping Yang Zhang
2014-02-21  6:44   ` Yang Zhang
2014-02-27  5:38 ` [Qemu-devel] [PATCH 0/5] xen: add Intel IGD passthrough support Zhang, Yang Z
2014-02-27  5:38   ` Zhang, Yang Z
2014-02-27 12:47   ` [Qemu-devel] " Stefano Stabellini
2014-02-27 12:47     ` Stefano Stabellini
2014-04-04 22:46 ` Kevin O'Connor [this message]
2014-04-04 22:46   ` Kevin O'Connor
2014-04-07  8:36   ` [Qemu-devel] [Xen-devel] " Ian Campbell
2014-04-07  8:36     ` Ian Campbell

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