root/arch/x86/kernel/acpi/realmode/wakeup.h

INCLUDED FROM

/*
 * 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 */
        u16 _jmp1;              /* ljmpl opcode, 32-bit only */
        u32 pmode_entry;        /* Protected mode resume point, 32-bit only */
        u16 _jmp2;              /* CS value, 32-bit only */
        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 realmode_flags;
        u32 real_magic;
        u16 trampoline_segment; /* segment with trampoline code, 64-bit only */
        u8  _pad1;
        u8  wakeup_jmp;
        u16 wakeup_jmp_off;
        u16 wakeup_jmp_seg;
        u64 wakeup_gdt[3];
        u32 signature;          /* To check we have correct structure */
} __attribute__((__packed__));

extern struct wakeup_header wakeup_header;
#endif

#define HEADER_OFFSET 0x3f00
#define WAKEUP_SIZE   0x4000

#endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */