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