include/tee/optee.h

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