| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef _LINUX_PURGATORY_H |
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| 3 | #define _LINUX_PURGATORY_H |
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| 4 | |
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| 5 | #include <linux/types.h> |
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| 6 | #include <crypto/sha2.h> |
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| 7 | #include <uapi/linux/kexec.h> |
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| 8 | |
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| 9 | struct kexec_sha_region { |
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| 10 | unsigned long start; |
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| 11 | unsigned long len; |
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| 12 | }; |
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| 13 | |
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| 14 | /* |
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| 15 | * These forward declarations serve two purposes: |
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| 16 | * |
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| 17 | * 1) Make sparse happy when checking arch/purgatory |
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| 18 | * 2) Document that these are required to be global so the symbol |
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| 19 | * lookup in kexec works |
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| 20 | */ |
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| 21 | extern struct kexec_sha_region purgatory_sha_regions[KEXEC_SEGMENT_MAX]; |
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| 22 | extern u8 purgatory_sha256_digest[SHA256_DIGEST_SIZE]; |
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| 23 | |
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| 24 | #endif |
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| 25 | |
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