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option: Allow to use the EFI variable driver as option backend

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Use the introduced EFI variable store driver on top of the SMMSTORE
region in SPI flash to read/write options.

Change-Id: I520eca96bcd573f825ed35a29bf8f750e313a02d
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62562
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Patrick Rudolph
2022-03-03 10:16:35 +01:00
committed by Lean Sheng Tan
parent 1ab8ad66d4
commit 4d66ab5e34
2 changed files with 54 additions and 0 deletions
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11
src/Kconfig
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@@ -142,6 +142,8 @@ choice
prompt "Option backend to use"
default USE_MAINBOARD_SPECIFIC_OPTION_BACKEND if HAVE_MAINBOARD_SPECIFIC_OPTION_BACKEND
default USE_OPTION_TABLE if NVRAMCUI_SECONDARY_PAYLOAD
default USE_UEFI_VARIABLE_STORE if DRIVERS_EFI_VARIABLE_STORE && \
PAYLOAD_EDK2 && SMMSTORE_V2
config OPTION_BACKEND_NONE
bool "None"
@@ -153,6 +155,15 @@ config USE_OPTION_TABLE
Enable this option if coreboot shall read options from the "CMOS"
NVRAM instead of using hard-coded values.
config USE_UEFI_VARIABLE_STORE
bool "Use UEFI variable-store in SPI flash as option backend"
depends on DRIVERS_EFI_VARIABLE_STORE
depends on SMMSTORE_V2
help
Enable this option if coreboot shall read/write options from the
SMMSTORE region within the SPI flash. The region must be formatted
by the payload first before it can be used.
config USE_MAINBOARD_SPECIFIC_OPTION_BACKEND
bool "Use mainboard-specific option backend"
depends on HAVE_MAINBOARD_SPECIFIC_OPTION_BACKEND