From: Anthony Liguori <anthony@codemonkey.ws>
To: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net>
Cc: kvm-devel <kvm-devel@lists.sourceforge.net>, bk@suse.de
Subject: Re: [PATCH] gfxboot VMX workaround v2
Date: Tue, 08 Apr 2008 07:14:13 -0500 [thread overview]
Message-ID: <47FB6195.1050105@codemonkey.ws> (raw)
In-Reply-To: <20080408093035.4f184e60@frecb000711.frec.bull.fr>
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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next prev parent reply other threads:[~2008-04-08 12:14 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-07 13:12 [PATCH] gfxboot VMX workaround v2 Alexander Graf
2008-04-07 16:05 ` Anthony Liguori
2008-04-07 16:25 ` Alexander Graf
2008-04-07 16:51 ` Anthony Liguori
2008-04-07 17:03 ` Alexander Graf
2008-04-07 17:05 ` Anthony Liguori
2008-04-08 0:05 ` Avi Kivity
2008-04-08 7:30 ` Guillaume Thouvenin
2008-04-08 12:14 ` Anthony Liguori [this message]
2008-04-08 13:02 ` Guillaume Thouvenin
2008-04-08 21:56 ` Avi Kivity
2008-04-15 9:07 ` Guillaume Thouvenin
2008-04-15 13:06 ` Avi Kivity
2008-04-18 12:18 ` Guillaume Thouvenin
2008-04-18 12:55 ` Guillaume Thouvenin
2008-04-18 13:23 ` Anthony Liguori
2008-04-18 14:05 ` Guillaume Thouvenin
2008-04-18 15:25 ` Anthony Liguori
2008-04-20 7:52 ` Avi Kivity
2008-04-21 15:11 ` Guillaume Thouvenin
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