#-------------------------------------------------------------------------------
# Copyright (c) 2022-2023, Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
#-------------------------------------------------------------------------------

menu "PS component options"

config PS_CREATE_FLASH_LAYOUT
    bool "Create flash FS"
    default y
    help
      Indicates that it is required to create a PS flash layout. If this flag is
      set, PS service will generate an empty and valid PS flash layout to store
      assets. It will erase all data located in the assigned PS memory area
      before generating the PS layout.  This flag is required to be set if the
      PS memory area is located in a non-persistent memory.  This flag can be
      set if the PS memory area is located in a persistent memory without a
      valid PS flash layout in it. That is the case when it is the first time in
      the device life that the PS service is executed.

config PS_RAM_FS
    bool "Emulated RAM FS"
    default n
    help
      Enables the use of RAM instead of the persistent storage device to store
      the FS in the Protected Storage service. This flag is OFF by default.
      The PS regression tests write/erase storage multiple time, so enabling
      this flag can increase the life of flash memory when testing.

      If this flag is enabled, PS_RAM_FS_SIZE must also be provided. This
      specifies the size of the block of RAM to be used to simulate the flash.

      Note: If this flag is disabled when running the regression tests, then it
      is recommended that the persistent storage area is erased before running
      the tests to ensure that all tests can run to completion. The type of
      persistent storage area is platform specific (eFlash, MRAM, etc.) and it
      is described in corresponding flash_layout.h

config PS_ROLLBACK_PROTECTION
    bool "Rollback protection"
    default y
    depends on !PLATFORM_NV_COUNTER_MODULE_DISABLED && PS_ENCRYPTION
    help
      Enable rollback protection in protected storage service. This flag takes
      effect only if the target has non-volatile counters and PS_ENCRYPTION flag
      is on.

config PS_VALIDATE_METADATA_FROM_FLASH
    bool "Validate filesystem metadata"
    default y
    imply ITS_VALIDATE_METADATA_FROM_FLASH
    help
      Enable the validation mechanism to check the metadata store in flash
      every time the flash data is read from flash. This validation is required
      if the flash is not hardware protected against malicious writes. In case
      the flash is protected against malicious writes (i.e embedded flash, etc),
      this validation can be disabled in order to reduce the validation
      overhead.

config PS_MAX_ASSET_SIZE
    int "Maximum stored asset size"
    default 2048
    help
      Defines the maximum asset size to be stored in the PS area. This size is
      used to define the temporary buffers used by PS to read/write the asset
      content from/to flash. The memory used by the temporary buffers is
      allocated statically as PS does not use dynamic memory allocation.

config PS_NUM_ASSETS
    int "Maximum stored assets number"
    default 10
    help
      Defines the maximum number of assets to be stored in the PS area. This
      number is used to dimension statically the object table size in
      RAM (fast access) and flash (persistent storage). The memory used by the
      object table is allocated statically as PS does not use dynamic memory
      allocation.

config PS_STACK_SIZE
    hex "Stack size"
    default 0x700
    help
      Defines the stack size of the Protected Storage Secure Partition. This
      value mainly depends on the build type(debug, release and minisizerel) and
      compiler.

endmenu