src/cpu/intel/model_206ax/finalize.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <types.h>
   4 #include <cpu/x86/msr.h>
   5
   6 #include "model_206ax.h"
   7
   8 /* MSR Documentation based on
   9  * "Sandy Bridge Processor Family BIOS Writer's Guide (BWG)"
  10  * Document Number 504790
  11  * Revision 1.6.0, June 2012 */
  12
  13 void intel_model_206ax_finalize_smm(void)
  14 {
  15         /* Lock TM interrupts - route thermal events to all processors */
  16         msr_set(MSR_MISC_PWR_MGMT, BIT(22));
  17
  18         /* Lock memory configuration to protect SMM */
  19         msr_set(MSR_LT_LOCK_MEMORY, BIT(0));
  20 }