1# SPDX-License-Identifier: GPL-2.0-only 2config EFI_SECRET 3 tristate "EFI secret area securityfs support" 4 depends on EFI && X86_64 5 select EFI_COCO_SECRET 6 select SECURITYFS 7 help 8 This is a driver for accessing the EFI secret area via securityfs. 9 The EFI secret area is a memory area designated by the firmware for 10 confidential computing secret injection (for example for AMD SEV 11 guests). The driver exposes the secrets as files in 12 <securityfs>/secrets/coco. Files can be read and deleted (deleting 13 a file wipes the secret from memory). 14 15 To compile this driver as a module, choose M here. 16 The module will be called efi_secret. 17