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Re: [Xen-ia64-devel] [PATCH]Fix domain0 no VGA console bug.

To: "Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx>
Subject: Re: [Xen-ia64-devel] [PATCH]Fix domain0 no VGA console bug.
From: Alex Williamson <alex.williamson@xxxxxx>
Date: Wed, 31 May 2006 09:31:46 -0600
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On Wed, 2006-05-31 at 20:30 +0800, Zhang, Xiantao wrote:
> After enabling dom0_vp mode, we lost domain0's VGA console, and we have
> to connect it through network or serial console. 
> The reason is that VGA frame buffer(0xa0000-0xc0000) was set to
> conventional 
> memory not IO in dom0's p2m table. Attached patch fixes it. 

Hi Xiantao,

   What about systems that don't have VGA?  What memory type does your
system report in the EFI MDT for address 0xA0000?  I would expect
EFI_MEMORY_MAPPED_IO, but if it's something else, it probably needs to
be assigned a passthrough in dom_fw_init().  Thanks,

        Alex

-- 
Alex Williamson                             HP Open Source & Linux Org.


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