chipsec.utilcmd.vmem_cmd module

The vmem command provides direct access to read and write virtual memory.

>>> chipsec_util vmem <op> <physical_address> <length> [value|buffer_file]
>>>
>>> <physical_address> : 64-bit physical address
>>> <op>               : read|readval|write|writeval|allocate|pagedump|search|getphys
>>> <length>           : byte|word|dword or length of the buffer from <buffer_file>
>>> <value>            : byte, word or dword value to be written to memory at <physical_address>
>>> <buffer_file>      : file with the contents to be written to memory at <physical_address>

Examples:

>>> chipsec_util vmem <op>     <virtual_address>  <length> [value|file]
>>> chipsec_util vmem readval  0xFED40000         dword
>>> chipsec_util vmem read     0x41E              0x20     buffer.bin
>>> chipsec_util vmem writeval 0xA0000            dword    0x9090CCCC
>>> chipsec_util vmem write    0x100000000        0x1000   buffer.bin
>>> chipsec_util vmem write    0x100000000        0x10     000102030405060708090A0B0C0D0E0F
>>> chipsec_util vmem allocate                    0x1000
>>> chipsec_util vmem search   0xF0000            0x10000  _SM_
>>> chipsec_util vmem getphys  0xFED00000