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1 /* SPDX-License-Identifier: BSD-2-Clause */
2 /*
3  * OP-TEE related definitions
4  *
5  * (C) Copyright 2016 Linaro Limited
6  * Andrew F. Davis <andrew.davis@linaro.org>
7  */
8 
9 #ifndef	_OPTEE_H
10 #define _OPTEE_H
11 
12 #include <linux/errno.h>
13 
14 #define OPTEE_MAGIC             0x4554504f
15 #define OPTEE_VERSION           1
16 #define OPTEE_ARCH_ARM32        0
17 #define OPTEE_ARCH_ARM64        1
18 
19 struct optee_header {
20 	uint32_t magic;
21 	uint8_t version;
22 	uint8_t arch;
23 	uint16_t flags;
24 	uint32_t init_size;
25 	uint32_t init_load_addr_hi;
26 	uint32_t init_load_addr_lo;
27 	uint32_t init_mem_usage;
28 	uint32_t paged_size;
29 };
30 
optee_image_get_entry_point(const image_header_t * hdr)31 static inline uint32_t optee_image_get_entry_point(const image_header_t *hdr)
32 {
33 	struct optee_header *optee_hdr = (struct optee_header *)(hdr + 1);
34 
35 	return optee_hdr->init_load_addr_lo;
36 }
37 
optee_image_get_load_addr(const image_header_t * hdr)38 static inline uint32_t optee_image_get_load_addr(const image_header_t *hdr)
39 {
40 	return optee_image_get_entry_point(hdr) - sizeof(struct optee_header);
41 }
42 
43 #if defined(CONFIG_OPTEE)
44 int optee_verify_image(struct optee_header *hdr, unsigned long tzdram_start,
45 		       unsigned long tzdram_len, unsigned long image_len);
46 #else
optee_verify_image(struct optee_header * hdr,unsigned long tzdram_start,unsigned long tzdram_len,unsigned long image_len)47 static inline int optee_verify_image(struct optee_header *hdr,
48 				     unsigned long tzdram_start,
49 				     unsigned long tzdram_len,
50 				     unsigned long image_len)
51 {
52 	return -EPERM;
53 }
54 
55 #endif
56 
57 #if defined(CONFIG_OPTEE)
58 int optee_verify_bootm_image(unsigned long image_addr,
59 			     unsigned long image_load_addr,
60 			     unsigned long image_len);
61 #else
optee_verify_bootm_image(unsigned long image_addr,unsigned long image_load_addr,unsigned long image_len)62 static inline int optee_verify_bootm_image(unsigned long image_addr,
63 					   unsigned long image_load_addr,
64 					   unsigned long image_len)
65 {
66 	return -EPERM;
67 }
68 #endif
69 
70 #endif /* _OPTEE_H */
71