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Subject: Re: [BUG] broken ebba638ae723d8a8fc2f7abce5ec18b688b791d7
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 02 Feb 2011 18:35:44 -0800
To: Rusty Russell <rusty@rustcorp.com.au>
CC: Jeremy Fitzhardinge <jeremy@goop.org>, Kees Cook <kees.cook@canonical.com>,
        matthieu castet <castet.matthieu@free.fr>,
        Linux Kernel list <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@elte.hu>
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Can we completely kill the "don't reload segments" flag, then?

"Rusty Russell" <rusty@rustcorp.com.au> wrote:

>On Thu, 3 Feb 2011 11:49:36 am Rusty Russell wrote:
>> On Thu, 3 Feb 2011 09:18:21 am H. Peter Anvin wrote:
>> > On 01/28/2011 08:58 AM, Jeremy Fitzhardinge wrote:
>> > > On 01/27/2011 07:38 PM, H. Peter Anvin wrote:
>> > >> [Adding Jeremy]
>> > >>
>> > >> Jeremy, would this break Xen?  As far as I know, Xen is the main
>user
>> > >> of skipping segment register initialization.
>> > > 
>> > > Xen doesn't go through head_*.S at all.
>> > > 
>> > 
>> > OK, I guess it's actually lguest which needs this feature?
>> 
>> Well, we already move __BOOT_DS into every other segment reg, so I
>don't think
>> %ss will break...
>> 
>> Checking...
>
>Fine here.
>
>Thanks,
>Rusty.
>PS.  In general, I don't want lguest to interfere with cleanups: I'd
>rather
>     fix up lguest as required until it gets too hard, then kill it.

-- 
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