src/soc/intel/common/pch/include/intelpch/lockdown.h

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #ifndef SOC_INTEL_COMMON_PCH_LOCKDOWN_H
  16 #define SOC_INTEL_COMMON_PCH_LOCKDOWN_H
  17
  18 #include <stdint.h>
  19
  20 /*
  21  * This function will get lockdown config specific to soc.
  22  *
  23  * Return values:
  24  *  0 = CHIPSET_LOCKDOWN_FSP = use FSP's lockdown functionality to lockdown IPs
  25  *  1 = CHIPSET_LOCKDOWN_COREBOOT = Use coreboot to lockdown IPs
  26  */
  27 int get_lockdown_config(void);
  28
  29 /*
  30  * Common PCH lockdown will perform lock down operation for DMI, FAST_SPI.
  31  * And SoC should implement any other PCH lockdown if applicable as
  32  * per silicon security guideline (i.e. LPC, PMC etc.)
  33  *
  34  * Input:
  35  * chipset_lockdown = Return value from get_lockdown_config() function
  36  */
  37 void soc_lockdown_config(int chipset_lockdown);
  38
  39 #endif /* SOC_INTEL_COMMON_PCH_LOCKDOWN_H */