From: H. Peter Anvin <hpa@zytor.com>
Date: Sat, 28 Mar 2009 20:53:26 +0000 (-0700)
Subject: x86, setup: preemptively save/restore edi and ebp around INT 15 E820
X-Git-Tag: v2.6.30-rc1~414^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32ec7fd08b597586774b92ac1cd2678021ccac1b;p=pandora-kernel.git

x86, setup: preemptively save/restore edi and ebp around INT 15 E820

Impact: BIOS bugproofing

Since there are BIOSes known to clobber %ebx and %esi for INT 15 E820,
assume there is something out there clobbering %edi and/or %ebp too,
and don't wait for it to fail.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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