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Diffstat (limited to 'lib/efi_loader/Kconfig')
| -rw-r--r-- | lib/efi_loader/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig index e13a6f9f4c3..cc8371a3bb4 100644 --- a/lib/efi_loader/Kconfig +++ b/lib/efi_loader/Kconfig @@ -62,6 +62,22 @@ config EFI_VARIABLE_FILE_STORE Select this option if you want non-volatile UEFI variables to be stored as file /ubootefi.var on the EFI system partition. +config EFI_RT_VOLATILE_STORE + bool "Allow variable runtime services in volatile storage (e.g RAM)" + depends on EFI_VARIABLE_FILE_STORE + help + When EFI variables are stored on file we don't allow SetVariableRT, + since the OS doesn't know how to write that file. At he same time + we copy runtime variables in DRAM and support GetVariableRT + + Enable this option to allow SetVariableRT on the RAM backend of + the EFI variable storage. The OS will be responsible for syncing + the RAM contents to the file, otherwise any changes made during + runtime won't persist reboots. + Authenticated variables are not supported. Note that this will + violate the EFI spec since writing auth variables will return + EFI_INVALID_PARAMETER + config EFI_MM_COMM_TEE bool "UEFI variables storage service via the trusted world" depends on OPTEE |