/* SPDX-License-Identifier: GPL-2.0 */ #ifndef LINUX_KEXEC_INTERNAL_H #define LINUX_KEXEC_INTERNAL_H #include <linux/kexec.h> struct kexec_segment; 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 */