the following patch was just integrated into master:
commit 6974e425a31b1c798dd05e346e9ca4521e31079f
Author: Rudolf Marek <[email protected]>
Date: Sat Jul 2 16:03:24 2011 +0200
Small SMM fixups
Align the spinlock to the 4 byte boundary (CPU will guarantee atomicity of
XCHG).
While at it add the PAUSE instruction to spinlock loop to hint the CPU we
are just
spinlocking. The rep nop could not be used because "as" complains that rep
is used
without string instructions.
Change-Id: I325cd83de3a6557b1bee6758bc151bc81e874f8c
Signed-off-by: Rudolf Marek <[email protected]>
See http://review.coreboot.org/81 for details.
-gerrit
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