42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/*
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* Definitions for the wakeup data structure at the head of the
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* wakeup code.
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*/
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#ifndef ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
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#define ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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/* This must match data at wakeup.S */
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struct wakeup_header {
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u16 video_mode; /* Video mode number */
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u16 _jmp1; /* ljmpl opcode, 32-bit only */
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u32 pmode_entry; /* Protected mode resume point, 32-bit only */
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u16 _jmp2; /* CS value, 32-bit only */
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u32 pmode_cr0; /* Protected mode cr0 */
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u32 pmode_cr3; /* Protected mode cr3 */
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u32 pmode_cr4; /* Protected mode cr4 */
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u32 pmode_efer_low; /* Protected mode EFER */
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u32 pmode_efer_high;
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u64 pmode_gdt;
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u32 realmode_flags;
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u32 real_magic;
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u16 trampoline_segment; /* segment with trampoline code, 64-bit only */
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u8 _pad1;
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u8 wakeup_jmp;
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u16 wakeup_jmp_off;
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u16 wakeup_jmp_seg;
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u64 wakeup_gdt[3];
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u32 signature; /* To check we have correct structure */
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} __attribute__((__packed__));
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extern struct wakeup_header wakeup_header;
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#endif
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#define HEADER_OFFSET 0x3f00
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#define WAKEUP_SIZE 0x4000
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#endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */
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