Timothy Pearson (tpearson@raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11164
-gerrit
commit 4592fbc5dcf4ae28afe96e8cd964f30e6aa726e9 Author: Timothy Pearson tpearson@raptorengineeringinc.com Date: Tue Aug 11 19:14:34 2015 -0500
cpu/amd/microcode: Update microcode parser to handle expanded blob files
The Family 15h microcode files provided by AMD are approximately 1,5x larger than the Family 10h and K8 files currently in the coreboot tree. As a result, they exceed the 2k/update size limit of coreboot's update mechanism.
To handle the increased microcode size, coreboot's AMD microcode file format was changed to 4k/update in a separate commit to the blobs repository. This patch allows parsing of that updated format.
Change-Id: Id6aeff0c65d151a9741c83c2872676427932e6e0 Signed-off-by: Timothy Pearson tpearson@raptorengineeringinc.com --- src/cpu/amd/microcode/microcode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/cpu/amd/microcode/microcode.c b/src/cpu/amd/microcode/microcode.c index 45e4bf0..b12e2cf 100644 --- a/src/cpu/amd/microcode/microcode.c +++ b/src/cpu/amd/microcode/microcode.c @@ -83,13 +83,13 @@ static void amd_update_microcode(const void *ucode, size_t ucode_len, const uint8_t *c = ucode; const uint8_t *ucode_end = (uint8_t*)ucode + ucode_len;
- while (c <= (ucode_end - 2048)) { + while (c <= (ucode_end - 4096)) { m = (struct microcode *)c; if (m->processor_rev_id == equivalent_processor_rev_id) { apply_microcode_patch(m); break; } - c += 2048; + c += 4096; } }