kexec_handover_debug.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * kexec_handover_debug.c - kexec handover optional debug functionality
 4 * Copyright (C) 2025 Google LLC, Pasha Tatashin <pasha.tatashin@soleen.com>
 5 */
 6
 7#define pr_fmt(fmt) "KHO: " fmt
 8
 9#include "kexec_handover_internal.h"
10
11bool kho_scratch_overlap(phys_addr_t phys, size_t size)
12{
13	phys_addr_t scratch_start, scratch_end;
14	unsigned int i;
15
16	for (i = 0; i < kho_scratch_cnt; i++) {
17		scratch_start = kho_scratch[i].addr;
18		scratch_end = kho_scratch[i].addr + kho_scratch[i].size;
19
20		if (phys < scratch_end && (phys + size) > scratch_start)
21			return true;
22	}
23
24	return false;
25}