CONFIG_EFI_SECRET: EFI secret area securityfs support

General informations

The Linux kernel configuration item CONFIG_EFI_SECRET:

• prompt: EFI secret area securityfs support
• type: tristate
• depends on: CONFIG_EFI && CONFIG_X86_64
• defined in drivers/virt/coco/efi_secret/Kconfig
• found in Linux kernels: 5.19, 6.0–6.8, 6.9-rc+HEAD
• modules built: efi_secret

Help text

This is a driver for accessing the EFI secret area via securityfs. The EFI secret area is a memory area designated by the firmware for confidential computing secret injection (for example for AMD SEV guests). The driver exposes the secrets as files in <securityfs>/secrets/coco. Files can be read and deleted (deleting a file wipes the secret from memory).

To compile this driver as a module, choose M here. The module will be called efi_secret.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module efi_secret CONFIG_EFI_SECRET : drivers/virt/coco/efi_secret/Kconfig : "EFI secret area securityfs support" # in 5.19, 6.0–6.8, 6.9-rc+HEAD
• lkddb platform "efi_secret" : CONFIG_EFI_SECRET CONFIG_VIRT_DRIVERS : drivers/virt/coco/efi_secret/efi_secret.c # in 5.19, 6.0–6.8, 6.9-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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