Re: [PATCH v7 3/5] efi: Add tee-based EFI variable driver

On 7/30/23 23:50, Masahisa Kojima wrote:

diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig index 043ca31c114e..aa38089d1e4a 100644 --- a/drivers/firmware/efi/Kconfig +++ b/drivers/firmware/efi/Kconfig @@ -287,3 +287,18 @@ config UEFI_CPER_X86 bool depends on UEFI_CPER && X86 default y

+config TEE_STMM_EFI

• tristate "TEE based EFI runtime variable service driver"

TEE-based

• depends on EFI && OPTEE && !EFI_VARS_PSTORE
• help

•  Select this config option if TEE is compiled to include StandAloneMM
  

•  as a separate secure partition it has the ability to check and store
  

partition. It has the ability

•  EFI variables on an RPMB or any other non-volatile medium used by
  

•  StandAloneMM.
  

•  Enabling this will change the EFI runtime services from the firmware
  

•  provided functions to TEE calls.
  

•  To compile this driver as a module, choose M here: the module
  

•  will be called tee_stmm_efi.