From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 2 May 2007 17:27:14 +0000 (+0200)
Subject: [PATCH] i386: PARAVIRT: Consistently wrap paravirt ops callsites to make them patchable
X-Git-Tag: v2.6.22-rc1~1011^2~91
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f8822f42019eceed19cc6c0f985a489e17796ed8;p=pandora-kernel.git

[PATCH] i386: PARAVIRT: Consistently wrap paravirt ops callsites to make them patchable

Wrap a set of interesting paravirt_ops calls in a wrapper which makes
the callsites available for patching.  Unfortunately this is pretty
ugly because there's no way to get gcc to generate a function call,
but also wrap just the callsite itself with the necessary labels.

This patch supports functions with 0-4 arguments, and either void or
returning a value.  64-bit arguments must be split into a pair of
32-bit arguments (lower word first).  Small structures are returned in
registers.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Zachary Amsden <zach@vmware.com>
Cc: Anthony Liguori <anthony@codemonkey.ws>
---

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