From: "H. Peter Anvin" <hpa@zytor.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@muc.de>, Andrew Morton <akpm@osdl.org>,
Keir Fraser <Keir.Fraser@cl.cam.ac.uk>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Zachary Amsden <zach@vmware.com>, Pratap <pratap@vmware.com>,
Chris Wright <chrisw@sous-sol.org>,
lkml - Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 6/6] cpuid neatening.
Date: Mon, 24 Jul 2006 16:58:07 -0700 [thread overview]
Message-ID: <44C55E8F.2020200@zytor.com> (raw)
In-Reply-To: <1153527194.13699.34.camel@localhost.localdomain>
Rusty Russell wrote:
> Roll all the cpuid asm into one __cpuid call. It's a little neater,
> and also means only one place to patch for paravirtualization.
The whole point of those is to avoid the unnecessary write to memory and
pick it back up again. This patch reintroduces that ugliness.
You don't want to make it the obvious multi-return macro, either,
because that code is known to break some old versions of gcc.
-hpa
next prev parent reply other threads:[~2006-07-24 23:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1153526643.13699.18.camel@localhost.localdomain>
2006-07-22 0:05 ` [PATCH 2/6] reboot.c to use struct Xgt_desc_struct Rusty Russell
[not found] ` <1153526798.13699.23.camel@localhost.localdomain>
2006-07-22 0:13 ` [PATCH 6/6] cpuid neatening Rusty Russell
2006-07-22 4:12 ` David Schwartz
2006-07-24 23:58 ` H. Peter Anvin [this message]
2006-07-25 1:41 ` Andi Kleen
[not found] <20060722000328.cd9e7e0e.akpm@osdl.org>
2006-07-22 15:22 ` Rusty Russell
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