From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anthony Liguori <anthony@codemonkey.ws>
Subject: Re: [PATCH] gfxboot VMX workaround v2
Date: Tue, 08 Apr 2008 07:14:13 -0500
Message-ID: <47FB6195.1050105@codemonkey.ws>
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Cc: kvm-devel <kvm-devel@lists.sourceforge.net>, bk@suse.de
To: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net>
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Guillaume Thouvenin wrote:
> On Mon, 07 Apr 2008 11:05:06 -0500
> Anthony Liguori <anthony@codemonkey.ws> wrote:
>
>   
>> Perhaps a viable way to fix this upstream would be to catch the vmentry 
>> failure, look to see if SS.CPL != CS.CPL, and if so, invoke 
>> x86_emulate() in a loop until SS.CPL == CS.CPL.
>>     
>
> I tried this solution some time ago but unfortunately x86_emulate()
> failed. I suspected a problem with guest EIP that could different
> between the vmentry catch and the emulation. I will rebase my patch and
> post them on the mailing list.
>   

x86 emulate is missing support for jmp far which is used to switch into 
protected mode.  It just needs to be added.

Regards,

Anthony Liguori

> Regards,
> Guillaume
>   


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