1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * (C) Copyright 2013
4  * Reinhard Pfau, Guntermann & Drunck GmbH, reinhard.pfau@gdsys.cc
5  */
6 
7 #ifndef __HRE_H
8 #define __HRE_H
9 
10 struct key_program {
11 	uint32_t magic;
12 	uint32_t code_crc;
13 	uint32_t code_size;
14 	uint8_t code[];
15 };
16 
17 struct h_reg {
18 	bool valid;
19 	uint8_t digest[20];
20 };
21 
22 /* CCDM specific contants */
23 enum {
24 	/* NV indices */
25 	NV_COMMON_DATA_INDEX	= 0x40000001,
26 	/* magics for key blob chains */
27 	MAGIC_KEY_PROGRAM	= 0x68726500,
28 	MAGIC_HMAC		= 0x68616300,
29 	MAGIC_END_OF_CHAIN	= 0x00000000,
30 	/* sizes */
31 	NV_COMMON_DATA_MIN_SIZE	= 3 * sizeof(uint64_t) + 2 * sizeof(uint16_t),
32 };
33 
34 int hre_verify_program(struct key_program *prg);
35 int hre_run_program(struct udevice *tpm, const uint8_t *code, size_t code_size);
36 
37 #endif /* __HRE_H */
38