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Diffstat (limited to 'drivers/firmware/efi/Kconfig')
| -rw-r--r-- | drivers/firmware/efi/Kconfig | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig index 5fe61b9ab5f9..d528c94c5859 100644 --- a/drivers/firmware/efi/Kconfig +++ b/drivers/firmware/efi/Kconfig @@ -263,6 +263,14 @@ config EFI_COCO_SECRET virt/coco/efi_secret module to access the secrets, which in turn allows userspace programs to access the injected secrets. +config OVMF_DEBUG_LOG + bool "Expose OVMF firmware debug log via sysfs" + depends on EFI + help + Recent OVMF versions (edk2-stable202508 + newer) can write + their debug log to a memory buffer. This driver exposes the + log content via sysfs (/sys/firmware/efi/ovmf_debug_log). + config UNACCEPTED_MEMORY bool depends on EFI_STUB @@ -281,6 +289,30 @@ config EFI_EMBEDDED_FIRMWARE bool select CRYPTO_LIB_SHA256 +config EFI_SBAT + def_bool y if EFI_SBAT_FILE!="" + +config EFI_SBAT_FILE + string "Embedded SBAT section file path" + depends on EFI_ZBOOT || (EFI_STUB && X86) + help + SBAT section provides a way to improve SecureBoot revocations of UEFI + binaries by introducing a generation-based mechanism. With SBAT, older + UEFI binaries can be prevented from booting by bumping the minimal + required generation for the specific component in the bootloader. + + Note: SBAT information is distribution specific, i.e. the owner of the + signing SecureBoot certificate must define the SBAT policy. Linux + kernel upstream does not define SBAT components and their generations. + + See https://github.com/rhboot/shim/blob/main/SBAT.md for the additional + details. + + Specify a file with SBAT data which is going to be embedded as '.sbat' + section into the kernel. + + If unsure, leave blank. + endmenu config UEFI_CPER |