LXR linux/include/linux/purgatory.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_PURGATORY_H
   3#define _LINUX_PURGATORY_H
   4
   5#include <linux/types.h>
   6#include <crypto/sha2.h>
   7#include <uapi/linux/kexec.h>
   8
   9struct kexec_sha_region {
  10        unsigned long start;
  11        unsigned long len;
  12};
  13
  14/*
  15 * These forward declarations serve two purposes:
  16 *
  17 * 1) Make sparse happy when checking arch/purgatory
  18 * 2) Document that these are required to be global so the symbol
  19 *    lookup in kexec works
  20 */
  21extern struct kexec_sha_region purgatory_sha_regions[KEXEC_SEGMENT_MAX];
  22extern u8 purgatory_sha256_digest[SHA256_DIGEST_SIZE];
  23
  24#endif
  25