[coreboot-gerrit] Patch set updated for coreboot: cpu/amd/microcode: Update microcode parser to handle expanded blob files
Timothy Pearson (tpearson@raptorengineeringinc.com)
gerrit at coreboot.org
Wed Aug 12 03:36:07 CEST 2015
Timothy Pearson (tpearson at 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 at 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 at 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;
}
}
More information about the coreboot-gerrit
mailing list