Intel Extensible Firmware Interface Specification page 70

Extensible Firmware Interface Specification
The
GetMemoryMap()
EFI_MEMORY_DESCRIPTOR. The
EFI_MEMORY_DESCRIPTOR
allow for future expansion of the
innovation. The structure of the
it will remain backwards compatible with the current definition. Thus OS software must use the
DescriptorSize
array.
Status Codes Returned
EFI_SUCCESS
EFI_BUFFER_TOO_SMALL
EFI_INVALID_PARAMETER
52
function also returns the size and revision number of the
DescriptorSize
array element returned in MemoryMap. The size is returned to
EFI_MEMORY_DESCRIPTOR
EFI_MEMORY_DESCRIPTOR
to find the start of each
EFI_MEMORY_DESCRIPTOR
The memory map was returned in the
The MemoryMap buffer was too small. The current buffer size
needed to hold the memory map is returned in
One of the parameters has an invalid value.
12/12/00
represents the size in bytes of an
in response to hardware
may be extended in the future but
in the
MemoryMap
buffer.
MemoryMap
MemoryMapSize
Version 1.02
.