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