linux/drivers/firmware/efi/libstub/unaccepted_memory.c

// SPDX-License-Identifier: GPL-2.0-only

#include <linux/efi.h>
#include <asm/efi.h>
#include "efistub.h"

struct efi_unaccepted_memory *unaccepted_table;

efi_status_t allocate_unaccepted_bitmap(__u32 nr_desc,
					struct efi_boot_memmap *map)
{ … }

/*
 * The accepted memory bitmap only works at unit_size granularity.  Take
 * unaligned start/end addresses and either:
 *  1. Accepts the memory immediately and in its entirety
 *  2. Accepts unaligned parts, and marks *some* aligned part unaccepted
 *
 * The function will never reach the bitmap_set() with zero bits to set.
 */
void process_unaccepted_memory(u64 start, u64 end)
{ … }

void accept_memory(phys_addr_t start, unsigned long size)
{ … }