From: Rusty Russell <rusty@rustcorp.com.au>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Andi Kleen <ak@suse.de>, Chris Wright <chrisw@sous-sol.org>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Zachary Amsden <zach@vmware.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
"H. Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Revert "[PATCH] paravirt: Add startup infrastructure for paravirtualization"
Date: Fri, 04 May 2007 22:12:50 +1000 [thread overview]
Message-ID: <1178280770.23670.61.camel@localhost.localdomain> (raw)
In-Reply-To: <m1mz0ku7je.fsf@ebiederm.dsl.xmission.com>
On Fri, 2007-05-04 at 05:56 -0600, Eric W. Biederman wrote:
> This reverts commit c9ccf30d77f04064fe5436027ab9d2230c7cdd94.
>
> Entering the kernel at startup_32 without passing our real mode data
> in %esi, and without guaranteeing that physical and virtual addresses
> are identity mapped makes head.S impossible to maintain.
Your assertion that these #ifdef-contained lines of code are "impossible
to maintain" is theatrical. I'd prefer to wait until we actually have a
replacement before we go ripping out working code.
Fortunately, I'm working on such code right now. But as lguest
currently boots with V = P + PAGE_OFFSET, it's not entirely a trivial
matter to change.
Thanks,
Rusty.
next prev parent reply other threads:[~2007-05-04 12:13 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-04 11:56 [PATCH] Revert "[PATCH] paravirt: Add startup infrastructure for paravirtualization" Eric W. Biederman
2007-05-04 12:12 ` Rusty Russell [this message]
2007-05-04 14:13 ` Eric W. Biederman
2007-05-04 14:37 ` Rusty Russell
2007-05-04 15:07 ` Eric W. Biederman
2007-05-05 1:22 ` Rusty Russell
2007-05-05 2:45 ` David Miller
2007-05-05 3:14 ` Eric W. Biederman
2007-05-05 3:50 ` David Miller
2007-05-05 2:53 ` Eric W. Biederman
2007-05-05 3:22 ` Rusty Russell
2007-05-05 11:18 ` [PATCH] lguest: don't use paravirt_probe, it's dying Rusty Russell
2007-05-07 1:53 ` Eric W. Biederman
2007-05-04 15:58 ` [PATCH] Revert "[PATCH] paravirt: Add startup infrastructure for paravirtualization" Andrew Morton
2007-05-05 1:55 ` Rusty Russell
2007-05-04 14:59 ` Jeremy Fitzhardinge
2007-05-04 15:20 ` Eric W. Biederman
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