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From: Jean Guyader <jean.guyader@citrix.com>
To: "Han, Weidong" <weidong.han@intel.com>
Cc: "'xen-devel@lists.xensource.com'" <xen-devel@lists.xensource.com>,
	"Lin, Ben Y" <ben.y.lin@intel.com>,
	"Kay, Allen M" <allen.m.kay@intel.com>,
	Fraser <Keir.Fraser@eu.citrix.com>Keir,
	"'bengheng@eecs.umich.edu'" <bengheng@eecs.umich.edu>
Subject: Re: [PATCH 1/2] graphics passthrough with VT-d
Date: Fri, 28 Aug 2009 09:12:32 +0100	[thread overview]
Message-ID: <20090828081232.GA14065@citrix.com> (raw)
In-Reply-To: <715D42877B251141A38726ABF5CABF2C054B533682@pdsmsx503.ccr.corp.intel.com>

On Fri, Aug 28, 2009 at 03:54:05AM -0400, Han, Weidong wrote:
> This patch supports basic gfx passthrough on xen side:
>   - retrieves VGA bios from host VGA BIOS address (0xC0000), then load it to guest VGA BIOS address (This is the same with XCI).
>   - Enlarge guest MMIO range to contain gfx card's large memory 
>   - add a config option 'gfx_passthru' for gfx passthrough
> 
> Signed-off-by: Ben Lin <ben.y.lin@intel.com>
> Signed-off-by: Weidong Han <weidong.han@intel.com>

Hi,

First thanks for taking the time to upstream those patch
that will help a lot.

I think the patch will be let intrusive if we could do all
that bios mapping + copying inside qemu so we don't need to
modify the xc_hvm_build function.

Qemu starts before the bios so that should be doable.

Thanks,
Jean

  reply	other threads:[~2009-08-28  8:12 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-28  7:54 [PATCH 1/2] graphics passthrough with VT-d Han, Weidong
2009-08-28  8:12 ` Jean Guyader [this message]
2009-08-28  8:30   ` Han, Weidong
2009-09-11 15:41   ` Stefano Stabellini
2009-09-16  5:10     ` Han, Weidong
2009-09-16  8:33       ` Jean Guyader
2009-09-16  8:54         ` Han, Weidong
2009-09-16 10:57           ` Stefano Stabellini
2009-09-17 11:11             ` Han, Weidong
2009-09-18  7:42             ` Han, Weidong
2009-09-19  1:15               ` Stefano Stabellini
2009-09-20 12:59                 ` Han, Weidong
2009-09-20 16:49                   ` Stefano Stabellini
2009-08-28  8:45 ` Keir Fraser
2009-08-28  8:46   ` Han, Weidong

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