the following patch was just integrated into master: commit 98ffb426f40593f930388c006f8058c199defff4 Author: Aaron Durbin adurbin@chromium.org Date: Tue Jan 15 15:15:32 2013 -0600
intel microcode: split up microcode loading stages
This patch only applies to CONFIG_MICROCODE_IN_CBFS. The intel microcode update routine would always walk the CBFS for the microcode file. Then it would loop through the whole file looking for a match then load the microcode. This process was maintained for intel_update_microcode_from_cbfs(), however 2 new functions were exported: 1. const void *intel_microcode_find(void) 2. void intel_microcode_load_unlocked(const void *microcode_patch)
The first locates a matching microcode while the second loads that mircocode. These new functions can then be used to cache the found microcode blob w/o having to re-walk the CBFS.
Booted baskingridge board to Linux and noted that all microcode revisions match on all the CPUs.
Change-Id: Ifde3f3e5c100911c4f984dd56d36664a8acdf7d5 Signed-off-by: Aaron Durbin adurbin@chromium.org Reviewed-on: http://review.coreboot.org/2778 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich rminnich@gmail.com
Build-Tested: build bot (Jenkins) at Tue Mar 19 02:09:13 2013, giving +1 Reviewed-By: Ronald G. Minnich rminnich@gmail.com at Tue Mar 19 05:11:50 2013, giving +2 See http://review.coreboot.org/2778 for details.
-gerrit