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>
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Subrata Banik
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@@ -324,6 +324,7 @@ config VBOOT
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select VBOOT_VBNV_CMOS
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select VBOOT_VBNV_CMOS_BACKUP_TO_FLASH
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select VBOOT_X86_SHA256_ACCELERATION
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select VBOOT_X86_RSA_ACCELERATION
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# Default hash block size is 1KiB. Increasing it to 4KiB to improve
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# hashing time as well as read time.
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