3dcd0d98e4
Add `VBOOT_X86_RSA_ACCELERATION' Kconfig option to enable SSE2 instruction set implementation of modulus exponentiation which is part of the RSA signature verification process. This option is enabled on CHROMEOS. | modpow() function call | original on rex0 | SSE2 on rex0 | |------------------------+------------------+--------------| | depthcharge - step 1 | 0.547 | 0.288 | | depthcharge - step 2 | 0.152 | 0.081 | | depthcharge - step 3 | 0.164 | 0.079 | |------------------------+------------------+--------------| | Total (ms) | 0.863 | 0.448 | | modpow() function call | original on brya0 | SSE2 on rex0 | |------------------------+-------------------+--------------| | depthcharge - step 1 | 0.693 | 0.248 | | depthcharge - step 2 | 0.172 | 0.065 | | depthcharge - step 3 | 0.223 | 0.067 | |------------------------+-------------------+--------------| | Total (ms) | 1.088 | 0.38 | BUG=b:312709384 TEST=modular exponentiation is about twice faster on rex0 and brya0 Change-Id: I801ebd7839261c6bd07fb218e1e36a7108e219bf Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/79290 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
53 lines
1.4 KiB
Plaintext
53 lines
1.4 KiB
Plaintext
# SPDX-License-Identifier: BSD-3-Clause
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config VBOOT_LIB
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bool "Compile verified boot (vboot) library"
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default y if CHROMEOS
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default n
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help
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This option enables compiling and building vboot libraries vboot_fw and tlcl.
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if VBOOT_LIB
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config VBOOT_CBFS_INTEGRATION
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bool "Enable vboot and CBFS integration"
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default n
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depends on CBFS_VERIFICATION
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help
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Say yes to request reboot on CBFS file hash mismatch in non-recovery mode.
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config VBOOT_TPM2_MODE
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bool "TPM2 Mode"
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default y
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help
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This option enables TPM 2.0 support in vboot. Disabling it allows using TPM 1.2.
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config VBOOT_X86_SHA_EXT
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bool "x86 SHA Extension"
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default y if CHROMEOS
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default n
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depends on ARCH_X86
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help
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This option enables SHA256 implementation using x86 SHA processor extension
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instructions: sha256msg1, sha256msg2, sha256rnds2.
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config VBOOT_X86_RSA_ACCELERATION
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bool "Use SSE2 instructions for RSA signature verification"
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default y if CHROMEOS
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default n
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depends on ARCH_X86
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help
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Use paddq, pmuludq, psrlq, punpckldq and punpcklqdq SSE2
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instructions to accelerate the modulus exponentiation which
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is part of the RSA signature verification process.
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config VBOOT_SHA_ARMV8_CE
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bool "SHA256 implementation using ARMv8 Crypto Extension"
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default y if CHROMEOS
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default n
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depends on ARCH_ARM64
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help
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This option enables SHA256 implementation using ARMv8 Crypto Extension.
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endif
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