Attention is currently required from: Arthur Heymans, Kapil Porwal, Nick Vaccaro, Ravishankar Sarawadi, Subrata Banik.
Hello Arthur Heymans, Eric Lai, Kapil Porwal, Nick Vaccaro, Ravishankar Sarawadi, build bot (Jenkins),
I'd like you to reexamine a change. Please visit
https://review.coreboot.org/c/coreboot/+/81954?usp=email
to look at the new patch set (#2).
Change subject: cpu/intel/microcode: Defer microcode patching until after DRAM init ......................................................................
cpu/intel/microcode: Defer microcode patching until after DRAM init
Follows Intel SoC recommendation to avoid potential cache contention issues during early (pre-DRAM) microcode loading.
Source: MTL_ARL_Processor_Family_BiosSpec_Rev1p0 Document Number: 729384
BUG=b:330536271 TEST=Able to boot to ChromeOS.
w/o this patch:
[DEBUG] microcode: sig=0xa06a4 pf=0x80 revision=0x19 [INFO ] CBFS: Found 'cpu_microcode_a06a4.bin' @0x1d9c0 size 0x21400 in mcache @0xfef89680 [INFO ] VB2:vb2_digest_init() 136192 bytes, hash algo 2, HW acceleration enabled [INFO ] microcode: load microcode patch [ERROR] microcode: Update failed
w/ this patch:
[ERROR] Microcode Error: Early microcode patching is not supported due to NEM limitation
Change-Id: I1e433f5bede036800b27900b4b13a399b4f45d6f Signed-off-by: Subrata Banik subratabanik@google.com --- M src/cpu/intel/microcode/microcode.c 1 file changed, 6 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/54/81954/2