/* SPDX-License-Identifier: GPL-2.0 */
|
/*
|
* Definitions for the wakeup data structure at the head of the
|
* wakeup code.
|
*/
|
|
#ifndef ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
|
#define ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
|
|
#ifndef __ASSEMBLY__
|
#include <linux/types.h>
|
|
/* This must match data at wakeup.S */
|
struct wakeup_header {
|
u16 video_mode; /* Video mode number */
|
u32 pmode_entry; /* Protected mode resume point, 32-bit only */
|
u16 pmode_cs;
|
u32 pmode_cr0; /* Protected mode cr0 */
|
u32 pmode_cr3; /* Protected mode cr3 */
|
u32 pmode_cr4; /* Protected mode cr4 */
|
u32 pmode_efer_low; /* Protected mode EFER */
|
u32 pmode_efer_high;
|
u64 pmode_gdt;
|
u32 pmode_misc_en_low; /* Protected mode MISC_ENABLE */
|
u32 pmode_misc_en_high;
|
u32 pmode_behavior; /* Wakeup routine behavior flags */
|
u32 realmode_flags;
|
u32 real_magic;
|
u32 signature; /* To check we have correct structure */
|
} __attribute__((__packed__));
|
|
extern struct wakeup_header wakeup_header;
|
#endif
|
|
#define WAKEUP_HEADER_OFFSET 8
|
#define WAKEUP_HEADER_SIGNATURE 0x51ee1111
|
|
/* Wakeup behavior bits */
|
#define WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE 0
|
#define WAKEUP_BEHAVIOR_RESTORE_CR4 1
|
#define WAKEUP_BEHAVIOR_RESTORE_EFER 2
|
|
#endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */
|
