| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef LINUX_KEXEC_INTERNAL_H |
| #define LINUX_KEXEC_INTERNAL_H |
| |
| #include <linux/kexec.h> |
| |
| struct kimage *do_kimage_alloc_init(void); |
| int sanity_check_segment_list(struct kimage *image); |
| void kimage_free_page_list(struct list_head *list); |
| void kimage_free(struct kimage *image); |
| int kimage_load_segment(struct kimage *image, struct kexec_segment *segment); |
| void kimage_terminate(struct kimage *image); |
| int kimage_is_destination_range(struct kimage *image, |
| unsigned long start, unsigned long end); |
| |
| /* |
| * Whatever is used to serialize accesses to the kexec_crash_image needs to be |
| * NMI safe, as __crash_kexec() can happen during nmi_panic(), so here we use a |
| * "simple" atomic variable that is acquired with a cmpxchg(). |
| */ |
| extern atomic_t __kexec_lock; |
| static inline bool kexec_trylock(void) |
| { |
| return atomic_cmpxchg_acquire(&__kexec_lock, 0, 1) == 0; |
| } |
| static inline void kexec_unlock(void) |
| { |
| atomic_set_release(&__kexec_lock, 0); |
| } |
| |
| #ifdef CONFIG_KEXEC_FILE |
| #include <linux/purgatory.h> |
| void kimage_file_post_load_cleanup(struct kimage *image); |
| extern char kexec_purgatory[]; |
| extern size_t kexec_purgatory_size; |
| #else /* CONFIG_KEXEC_FILE */ |
| static inline void kimage_file_post_load_cleanup(struct kimage *image) { } |
| #endif /* CONFIG_KEXEC_FILE */ |
| #endif /* LINUX_KEXEC_INTERNAL_H */ |