1#ifndef LINUX_KEXEC_INTERNAL_H
 2#define LINUX_KEXEC_INTERNAL_H
 3
 4#include <linux/kexec.h>
 5
 
 
 6struct kimage *do_kimage_alloc_init(void);
 7int sanity_check_segment_list(struct kimage *image);
 8void kimage_free_page_list(struct list_head *list);
 9void kimage_free(struct kimage *image);
10int kimage_load_segment(struct kimage *image, struct kexec_segment *segment);
11void kimage_terminate(struct kimage *image);
12int kimage_is_destination_range(struct kimage *image,
13				unsigned long start, unsigned long end);
14
15extern struct mutex kexec_mutex;
 
 
 
 
 
 
 
 
 
 
 
 
 
16
17#ifdef CONFIG_KEXEC_FILE
18struct kexec_sha_region {
19	unsigned long start;
20	unsigned long len;
21};
22
23void kimage_file_post_load_cleanup(struct kimage *image);
 
 
24#else /* CONFIG_KEXEC_FILE */
25static inline void kimage_file_post_load_cleanup(struct kimage *image) { }
26#endif /* CONFIG_KEXEC_FILE */
27#endif /* LINUX_KEXEC_INTERNAL_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef LINUX_KEXEC_INTERNAL_H
 3#define LINUX_KEXEC_INTERNAL_H
 4
 5#include <linux/kexec.h>
 6
 7struct kexec_segment;
 8
 9struct kimage *do_kimage_alloc_init(void);
10int sanity_check_segment_list(struct kimage *image);
11void kimage_free_page_list(struct list_head *list);
12void kimage_free(struct kimage *image);
13int kimage_load_segment(struct kimage *image, struct kexec_segment *segment);
14void kimage_terminate(struct kimage *image);
15int kimage_is_destination_range(struct kimage *image,
16				unsigned long start, unsigned long end);
17
18/*
19 * Whatever is used to serialize accesses to the kexec_crash_image needs to be
20 * NMI safe, as __crash_kexec() can happen during nmi_panic(), so here we use a
21 * "simple" atomic variable that is acquired with a cmpxchg().
22 */
23extern atomic_t __kexec_lock;
24static inline bool kexec_trylock(void)
25{
26	return atomic_cmpxchg_acquire(&__kexec_lock, 0, 1) == 0;
27}
28static inline void kexec_unlock(void)
29{
30	atomic_set_release(&__kexec_lock, 0);
31}
32
33#ifdef CONFIG_KEXEC_FILE
34#include <linux/purgatory.h>
 
 
 
 
35void kimage_file_post_load_cleanup(struct kimage *image);
36extern char kexec_purgatory[];
37extern size_t kexec_purgatory_size;
38#else /* CONFIG_KEXEC_FILE */
39static inline void kimage_file_post_load_cleanup(struct kimage *image) { }
40#endif /* CONFIG_KEXEC_FILE */
41#endif /* LINUX_KEXEC_INTERNAL_H */