dmem

Syntax

dmem[-b][address][size][-MMIO]

Description

Displays the contents of system or device memory.

Options

-b

Displays one screen at a time.

address

Displays memory contents from a specific starting address (in hexadecimal format).

size

Displays memory contents of a specific size (in hexadecimal format).

-MMIO

Displays memory mapped contents using the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL .

Usage

If address is not specified, the contents of the EFI System Table are displayed. Otherwise, memory starting at the address is displayed. If size is not specified, the display defaults to 512 bytes. If -MMIO is not specified, main system memory is displayed. Otherwise, device memory is displayed through the use of the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.

Example

To display memory contents from 1af3088 with a size of 16 bytes:

Shell> dmem 1af3088 16
Memory Address 0000000001AF3088 16 Bytes
01AF3088: 49 42 49 20 53 59 53 54-00 00 02 00 18 00 00 00 *IBI SYST........*
01AF3098: FF 9E D7 9B 00 00                               *......*