blocks - 2024.1 English

Syntax

• For Zynq devices and Zynq UltraScale+ MPSoC:

                                                    
  [blocks = <size><num>;<size><num>;...;<size><*>] <partition> 
  

• For Versal adaptive SoC:

  { blocks = <size><num>;...;<size><*>, file=<partition> }

Description

Specify block sizes for key-rolling feature in encryption. Each module is encrypted using its own unique key. The initial key is stored at the key source on the device, while keys for each successive module are encrypted (wrapped) in the previous module.

Arguments

<size>

Specifies the size of blocks (in bytes).

Example

• For AMD Zynq™ UltraScale+™ MPSoC:

  Sample BIF - test.bif                                          
  all:
  {
  	[keysrc_encryption] bbram_red_key
  	[bootloader,encryption=aes, aeskeyfile=encr.nky, 
  	destination_cpu=a53-0,blocks=4096(2);1024;2048(2);4096(*)]
  	fsbl.elf
  }

• For Versal adaptive SoC:

  all:
  {
  	id_code = 0x04ca8093
  	extended_id_code = 0x01
  	id = 0x2
  
  	metaheader
  	{
  		encryption = aes,
  		keysrc = bbram_red_key,
  		aeskeyfile = efuse_red_metaheader_key.nky,
  		dpacm_enable
  	}
  
  	image
  	{
  		name = pmc_subsys, id = 0x1c000001
  		partition
  		{
  			id = 0x01, type = bootloader,
  			encryption = aes,
  			keysrc = bbram_red_key,
  			aeskeyfile = bbram_red_key.nky,
  			dpacm_enable,
  			blocks = 4096(2);1024;2048(2);4096(*),
  			file = plm.elf
  		}
  		partition
  		{
  			id = 0x09, type = pmcdata, load = 0xf2000000,
  			aeskeyfile = pmcdata.nky,
  			file = pmc_data.cdo
  		}
  	}
  
  	image
  	{
  		name = lpd, id = 0x4210002
  		partition
  		{
  			id = 0x0C, type = cdo,
  			encryption = aes,
  			keysrc = bbram_red_key,
  			aeskeyfile = key1.nky,
  			dpacm_enable,
  			blocks = 8192(20);4096(*),
  			file = lpd_data.cdo
  		}
  		partition
  		{
  			id = 0x0B, core = psm,
  			encryption = aes,
  			keysrc = bbram_red_key,
  			aeskeyfile = key2.nky,
  			dpacm_enable,
  			blocks = 4096(2);1024;2048(2);4096(*),
  			file = psm_fw.elf
  		}
  	}
  
  	image
  	{
  		name = fpd, id = 0x420c003
  		partition
  		{
  			id = 0x08, type = cdo,
  			encryption = aes,
  			keysrc = bbram_red_key,
  			aeskeyfile = key5.nky,
  			dpacm_enable,
  			blocks = 8192(20);4096(*),
  			file = fpd_data.cdo
  		}
  	}
  }