MSPM0G3519: Custom Bootloader

Tool/software:

Hello,

I am working with MSPM0G3519 with custom bootloader. I placed custom bootloader to 0x00000000 and I placed the app after custom bootloader code with offset. 

I do necessary linker modifications. I reduced flash size for bootloader project and I added offset for the flash section on the app project's linker. I also changed .intvecs section on the app side.

I added "SCB->VTOR = (FLASH_BASE | k_ADDRESS_APP);" this line on the app project at the top of main function.

Here is my jump function : 

/* function pointer to jump from boot to application code */
typedef void (*pf_application)(void);

static uint32_t v_JumpUserApp(void)
{
  static volatile pf_application pfnc_jump_app = NULL;
  static volatile uint32_t dw_jump_app_address = 0;

  // Get App Address
  uint32_t EntryAddr = dw_GetAppAddress();

  __disable_irq;
  dw_jump_app_address = *(volatile uint32_t*)(EntryAddr + 4);
  pfnc_jump_app = (pf_application)dw_jump_app_address;
  /* Initialize user application's Stack Pointer */
  __set_MSP(*(volatile uint32_t*)(EntryAddr));
  /* Jump to application */
  pfnc_jump_app();

  return(EntryAddr);
}

My question is do I have to use BSL and BCR? I will check CRC of the app on bootloader. Do I need BSL or BCR for any other needs ? (for ex: cybersecurtiy)

Thanks