Intel Extensible Firmware Interface Specification page 166

Extensible Firmware Interface Specification
Allocation requests of
that satisfies the request that are below or equal to the value pointed to by
input. On success, the value pointed to by
allocated. If there are not enough consecutive available pages below the requested address, an error
is returned.
Allocation requests of
in the data pointed to by HostAddress. If the range is not available memory an error is returned.
Status Codes Returned
EFI_SUCCESS
EFI_OUT_OF_RESOURCES
EFI_INVALID_PARAMETER
EFI_UNSUPPORTED
148
Type AllocateMaxAddress
HostAddress
Type AllocateAddress
The requested memory pages were allocated.
The memory pages could not be allocated.
The requested memory type is invalid.
The requested HostAddress is not supported on this platform.
12/12/00
will allocate any available range of pages
HostAddress
contains the base of the range actually
will allocate the pages at the address supplied
on
Version 1.02