diff options
| author | Stefan Reinauer <reinauer@chromium.org> | 2012-04-03 16:09:46 -0700 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2012-04-05 23:03:09 +0200 |
| commit | deda99783312ee0567465e87d4974bc434b27dcc (patch) | |
| tree | 2a3d16cda4fd1db67d83507834d71dbbb16f5d2f /src/cpu/x86 | |
| parent | c6b2166d89fcc3e4324a2888784b27109706b7e1 (diff) | |
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>
Reviewed-on: http://review.coreboot.org/869
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/cpu/x86')
| -rw-r--r-- | 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 1be0e3a94c..8dba3c836f 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. |