src/soc/intel/apollolake/bootblock/fit.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <stdint.h>
   4 #include <soc/iomap.h>
   5
   6 /*
   7  * At runtime TXE creates the FIT table in the shared SRAM and patches the bootblock
   8  * at the fixed address 4G - 64 byte with a pointer to this FIT table. In order to be able
   9  * to pre-compute the PCR value for the bootblock this FIT pointer needs to be added to the
  10  * image as well. Since the FIT location is fixed in TXE, this can be done at build time.
  11  * TXE places the table right at the start of the shared SRAM.
  12  */
  13 __attribute__((used, __section__(".fit_pointer"))) const uint64_t fit_ptr = SHARED_SRAM_BASE;