include/tee/optee.h

   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
  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
  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
  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
  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 */