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Re: [Xen-devel] [RFC][PATCH] Emulate instructions in vm86 mode

To: Jan Beulich <jbeulich@xxxxxxxxxx>
Subject: Re: [Xen-devel] [RFC][PATCH] Emulate instructions in vm86 mode
From: Chris Wright <chrisw@xxxxxxxxxxxx>
Date: Thu, 2 Nov 2006 05:53:51 -0800
Cc: Chris Wright <chrisw@xxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Bastian Blank <bastian@xxxxxxxxxxxx>
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* Jan Beulich (jbeulich@xxxxxxxxxx) wrote:
> Hmm, that would then perhaps also cause problems with the enhanced
> emulation code I have pending in my 32on64 queue, unless the problem
> is due to masked problems in the old code (ie when not adding the CS
> base for vm86 mode emulation). Any chance you dug into why exactly
> the more correct (but still incomplete) code doesn't work anymore
> (namely, what instruction(s) caused problems)?

I haven't figured out yet where the underlying problem is.  I had a working
theory until i tested on the 945, so I still have some digging to do.

thanks,
-chris

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