61 lines
1.6 KiB
C
Executable file
61 lines
1.6 KiB
C
Executable file
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright 2001-2003 Pavel Machek <pavel@suse.cz>
|
|
* Based on code
|
|
* Copyright 2001 Patrick Mochel <mochel@osdl.org>
|
|
*/
|
|
#ifndef _ASM_X86_SUSPEND_64_H
|
|
#define _ASM_X86_SUSPEND_64_H
|
|
|
|
#include <asm/desc.h>
|
|
#include <asm/fpu/api.h>
|
|
|
|
/*
|
|
* Image of the saved processor state, used by the low level ACPI suspend to
|
|
* RAM code and by the low level hibernation code.
|
|
*
|
|
* If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
|
|
* __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
|
|
* still work as required.
|
|
*/
|
|
struct saved_context {
|
|
struct pt_regs regs;
|
|
|
|
/*
|
|
* User CS and SS are saved in current_pt_regs(). The rest of the
|
|
* segment selectors need to be saved and restored here.
|
|
*/
|
|
u16 ds, es, fs, gs;
|
|
|
|
/*
|
|
* Usermode FSBASE and GSBASE may not match the fs and gs selectors,
|
|
* so we save them separately. We save the kernelmode GSBASE to
|
|
* restore percpu access after resume.
|
|
*/
|
|
unsigned long kernelmode_gs_base, usermode_gs_base, fs_base;
|
|
|
|
unsigned long cr0, cr2, cr3, cr4, cr8;
|
|
u64 misc_enable;
|
|
bool misc_enable_saved;
|
|
struct saved_msrs saved_msrs;
|
|
unsigned long efer;
|
|
u16 gdt_pad; /* Unused */
|
|
struct desc_ptr gdt_desc;
|
|
u16 idt_pad;
|
|
struct desc_ptr idt;
|
|
u16 ldt;
|
|
u16 tss;
|
|
unsigned long tr;
|
|
unsigned long safety;
|
|
unsigned long return_address;
|
|
} __attribute__((packed));
|
|
|
|
#define loaddebug(thread,register) \
|
|
set_debugreg((thread)->debugreg##register, register)
|
|
|
|
/* routines for saving/restoring kernel state */
|
|
extern char core_restore_code[];
|
|
extern char restore_registers[];
|
|
|
|
#endif /* _ASM_X86_SUSPEND_64_H */
|