src/include/cpu/x86/legacy_save_state.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef __X86_LEGACY_SAVE_STATE_H__
   4 #define __X86_LEGACY_SAVE_STATE_H__
   5
   6 #include <types.h>
   7
   8 /* Legacy x86 SMM State-Save Area
   9  * starts @ 0x7e00
  10  */
  11 #define SMM_LEGACY_ARCH_OFFSET 0x7e00
  12
  13 typedef struct {
  14         u8      reserved0[248];
  15         u32     smbase;
  16         u32     smm_revision;
  17         u16     io_restart;
  18         u16     autohalt_restart;
  19         u8      reserved1[132];
  20         u32     gdtbase;
  21         u8      reserved2[8];
  22         u32     idtbase;
  23         u8      reserved3[16];
  24         u32     es;
  25         u32     cs;
  26         u32     ss;
  27         u32     ds;
  28         u32     fs;
  29         u32     gs;
  30         u32     ldtbase;
  31         u32     tr;
  32         u32     dr7;
  33         u32     dr6;
  34         u32     eax;
  35         u32     ecx;
  36         u32     edx;
  37         u32     ebx;
  38         u32     esp;
  39         u32     ebp;
  40         u32     esi;
  41         u32     edi;
  42         u32     eip;
  43         u32     eflags;
  44         u32     cr3;
  45         u32     cr0;
  46 } __packed legacy_smm_state_save_area_t;
  47
  48 #endif