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 #include <image.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
  33 optee_image_get_entry_point(const struct image_header *hdr)
  34 {
  35         struct optee_header *optee_hdr = (struct optee_header *)(hdr + 1);
  36
  37         return optee_hdr->init_load_addr_lo;
  38 }
  39
  40 static inline uint32_t
  41 optee_image_get_load_addr(const struct image_header *hdr)
  42 {
  43         return optee_image_get_entry_point(hdr) - sizeof(struct optee_header);
  44 }
  45
  46 #if defined(CONFIG_OPTEE)
  47 int optee_verify_image(struct optee_header *hdr, unsigned long tzdram_start,
  48                        unsigned long tzdram_len, unsigned long image_len);
  49 #else
  50 static inline int optee_verify_image(struct optee_header *hdr,
  51                                      unsigned long tzdram_start,
  52                                      unsigned long tzdram_len,
  53                                      unsigned long image_len)
  54 {
  55         return -EPERM;
  56 }
  57
  58 #endif
  59
  60 #if defined(CONFIG_OPTEE)
  61 int optee_verify_bootm_image(unsigned long image_addr,
  62                              unsigned long image_load_addr,
  63                              unsigned long image_len);
  64 #else
  65 static inline int optee_verify_bootm_image(unsigned long image_addr,
  66                                            unsigned long image_load_addr,
  67                                            unsigned long image_len)
  68 {
  69         return -EPERM;
  70 }
  71 #endif
  72
  73 #if defined(CONFIG_OPTEE) && defined(CONFIG_OF_LIBFDT)
  74 int optee_copy_fdt_nodes(const void *old_blob, void *new_blob);
  75 #else
  76 static inline int optee_copy_fdt_nodes(const void *old_blob, void *new_blob)
  77 {
  78         return 0;
  79 }
  80 #endif
  81
  82 #endif /* _OPTEE_H */