Freepages() - Intel Extensible Firmware Interface Specification

Extensible Firmware Interface Specification
3.2.2

FreePages()

Summary
Frees memory pages.
Prototype
EFI_STATUS
FreePages (
IN EFI_PHYSICAL_ADDRESS
IN UINTN
);
Parameters
Memory
Pages
Description
The
FreePages()
Status Codes Returned
EFI_SUCCESS
EFI_NOT_FOUND
EFI_INVALID_PARAMETER
48
The base physical address of the pages to be freed. Type
EFI_PHYSICAL_ADDRESS
The number of contiguous 4KB pages to free.
function returns memory allocated by AllocatePages()to the firmware.
The requested memory pages were freed.
The requested memory pages were not allocated with
AllocatePages().
Memory is not a page-aligned address or
12/12/00
Memory,
Pages
is defined in Section 3.2.1.
Pages is invalid.
Version 1.02