# SPDX-License-Identifier: BSD-3-Clause config VBOOT_LIB bool "Compile verified boot (vboot) library" default y if CHROMEOS default n help This option enables compiling and building vboot libraries vboot_fw and tlcl. if VBOOT_LIB config VBOOT_CBFS_INTEGRATION bool "Enable vboot and CBFS integration" default n depends on CBFS_VERIFICATION help Say yes to request reboot on CBFS file hash mismatch in non-recovery mode. config VBOOT_TPM2_MODE bool "TPM2 Mode" default y help This option enables TPM 2.0 support in vboot. Disabling it allows using TPM 1.2. config VBOOT_X86_SHA_EXT bool "x86 SHA Extension" default y if CHROMEOS default n depends on ARCH_X86 help This option enables SHA256 implementation using x86 SHA processor extension instructions: sha256msg1, sha256msg2, sha256rnds2. config VBOOT_X86_RSA_ACCELERATION bool "Use SSE2 instructions for RSA signature verification" default y if CHROMEOS default n depends on ARCH_X86 help Use paddq, pmuludq, psrlq, punpckldq and punpcklqdq SSE2 instructions to accelerate the modulus exponentiation which is part of the RSA signature verification process. config VBOOT_SHA_ARMV8_CE bool "SHA256 implementation using ARMv8 Crypto Extension" default y if CHROMEOS default n depends on ARCH_ARM64 help This option enables SHA256 implementation using ARMv8 Crypto Extension. endif