Stefan Reinauer (stefan.reinauer@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@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@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.