arch/x86/mm/mem_encrypt.c

   1 /*
   2  * AMD Memory Encryption Support
   3  *
   4  * Copyright (C) 2016 Advanced Micro Devices, Inc.
   5  *
   6  * Author: Tom Lendacky <thomas.lendacky@amd.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/linkage.h>
  14 #include <linux/init.h>
  15
  16 /*
  17  * Since SME related variables are set early in the boot process they must
  18  * reside in the .data section so as not to be zeroed out when the .bss
  19  * section is later cleared.
  20  */
  21 unsigned long sme_me_mask __section(.data) = 0;
  22 EXPORT_SYMBOL_GPL(sme_me_mask);
  23
  24 void __init sme_encrypt_kernel(void)
  25 {
  26 }
  27
  28 void __init sme_enable(void)
  29 {
  30 }