1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "EFI secret area securityfs support"
4 depends on EFI && X86_64
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).
15 To compile this driver as a module, choose M here.
16 The module will be called efi_secret.