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| author | Jeremy Compostella <jeremy.compostella@intel.com> | 2023-11-27 15:07:43 -0800 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2024-01-02 03:40:18 +0000 |
| commit | 6b02a20f17fa0d1b158ff093a49d106a7acd6384 (patch) | |
| tree | 1736275078e8067bfebac45dfa31a8d9f9558ffa /src/soc | |
| parent | 25807fd5fd7b4351542ca82b49925bbdba300cec (diff) | |
| download | coreboot-6b02a20f17fa0d1b158ff093a49d106a7acd6384.tar.gz coreboot-6b02a20f17fa0d1b158ff093a49d106a7acd6384.tar.bz2 coreboot-6b02a20f17fa0d1b158ff093a49d106a7acd6384.zip | |
soc/intel/meteorlake: Enable SSE2 accelerated RSA sign. verification
Enabling SSE2 accelerated RSA signature verification saves 4.7 ms of
boot time.
| modpow() function call | original | SSE2 Algorithm 2 |
|----------------------------+----------+------------------|
| coreboot/verstage - step 1 | 6.644 | 3.042 |
| coreboot/verstage - step 2 | 1.891 | 0.757 |
|----------------------------+----------+------------------|
| Total (ms) | 8.535 | 3.799 |
BUG=b:312709384
TEST=modular exponentiation is more than twice faster on rex0
Change-Id: I382e62a765dbf2027c4ac54d6eb19a9542a8c302
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79291
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/meteorlake/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig index 756d4990ecec..5b78fdf31229 100644 --- a/src/soc/intel/meteorlake/Kconfig +++ b/src/soc/intel/meteorlake/Kconfig @@ -324,6 +324,7 @@ config VBOOT select VBOOT_VBNV_CMOS select VBOOT_VBNV_CMOS_BACKUP_TO_FLASH select VBOOT_X86_SHA256_ACCELERATION + select VBOOT_X86_RSA_ACCELERATION # Default hash block size is 1KiB. Increasing it to 4KiB to improve # hashing time as well as read time. |