[coreboot] New patch to review for coreboot: c35c461 Invalidate cache before first jump
Stefan Reinauer (stefan.reinauer@coreboot.org)
gerrit at coreboot.org
Thu Apr 5 21:24:56 CEST 2012
Stefan Reinauer (stefan.reinauer at coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/869
-gerrit
commit c35c461bb2146ab949062f22e265406deef178d2
Author: Stefan Reinauer <reinauer at chromium.org>
Date: Tue Apr 3 16:09:46 2012 -0700
Invalidate cache before first jump
Some CPUs (Sandybridge) seem to require this, and it does not hurt
on other CPUs.
Change-Id: I4fdb281b2b684ab5fea999aae28ca08dce24da4d
Signed-off-by: Stefan Reinauer <reinauer at google.com>
---
src/cpu/x86/16bit/reset16.inc | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/src/cpu/x86/16bit/reset16.inc b/src/cpu/x86/16bit/reset16.inc
index 1be0e3a..8dba3c8 100644
--- a/src/cpu/x86/16bit/reset16.inc
+++ b/src/cpu/x86/16bit/reset16.inc
@@ -2,6 +2,7 @@
.code16
.globl reset_vector
reset_vector:
+ wbinvd
.byte 0xe9
.int _start - ( . + 2 )
/* Note: The above jump is hand coded to work around bugs in binutils.
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