osfmk/i386/ucode.h

   1 /*
   2  *  ucode.h
   3  *
   4  *  Interface definitions for the microcode updater interface sysctl
   5  */
   6
   7 /* Intel defined microcode format */
   8 struct intel_ucupdate {
   9         /* Header information */
  10         uint32_t header_version;
  11         uint32_t update_revision;
  12         uint32_t date;
  13         uint32_t processor_signature;
  14         uint32_t checksum;
  15         uint32_t loader_revision;
  16         uint32_t processor_flags;
  17         uint32_t data_size;
  18         uint32_t total_size;
  19
  20         /* Reserved for future expansion */
  21         uint32_t reserved0;
  22         uint32_t reserved1;
  23         uint32_t reserved2;
  24
  25         /* First word of the update data */
  26         uint32_t data;
  27 };
  28
  29 extern int ucode_interface(uint64_t addr);
  30 extern void ucode_update_wake(void);