arch/x86/include/asm/suspend_64.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright 2001-2003 Pavel Machek <pavel@suse.cz>
   4  * Based on code
   5  * Copyright 2001 Patrick Mochel <mochel@osdl.org>
   6  */
   7 #ifndef _ASM_X86_SUSPEND_64_H
   8 #define _ASM_X86_SUSPEND_64_H
   9
  10 #include <asm/desc.h>
  11 #include <asm/fpu/api.h>
  12
  13 /*
  14  * Image of the saved processor state, used by the low level ACPI suspend to
  15  * RAM code and by the low level hibernation code.
  16  *
  17  * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
  18  * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
  19  * still work as required.
  20  */
  21 struct saved_context {
  22         struct pt_regs regs;
  23         u16 ds, es, fs, gs, ss;
  24         unsigned long gs_base, gs_kernel_base, fs_base;
  25         unsigned long cr0, cr2, cr3, cr4, cr8;
  26         u64 misc_enable;
  27         bool misc_enable_saved;
  28         struct saved_msrs saved_msrs;
  29         unsigned long efer;
  30         u16 gdt_pad; /* Unused */
  31         struct desc_ptr gdt_desc;
  32         u16 idt_pad;
  33         u16 idt_limit;
  34         unsigned long idt_base;
  35         u16 ldt;
  36         u16 tss;
  37         unsigned long tr;
  38         unsigned long safety;
  39         unsigned long return_address;
  40 } __attribute__((packed));
  41
  42 #define loaddebug(thread,register) \
  43         set_debugreg((thread)->debugreg##register, register)
  44
  45 /* routines for saving/restoring kernel state */
  46 extern char core_restore_code[];
  47 extern char restore_registers[];
  48
  49 #endif /* _ASM_X86_SUSPEND_64_H */