cda846f101
This patch changes 64-bit trampoline so that CR4 and EFER are provided by the kernel instead of using fixed values. Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com> Link: http://lkml.kernel.org/r/1336501366-28617-24-git-send-email-jarkko.sakkinen@intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
63 lines
1.2 KiB
C
63 lines
1.2 KiB
C
#ifndef _ARCH_X86_REALMODE_H
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#define _ARCH_X86_REALMODE_H
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#include <linux/types.h>
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#include <asm/io.h>
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/* This must match data at realmode.S */
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struct real_mode_header {
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u32 text_start;
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u32 ro_end;
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/* SMP trampoline */
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u32 trampoline_start;
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u32 trampoline_status;
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u32 trampoline_header;
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#ifdef CONFIG_X86_64
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u32 trampoline_pgd;
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#endif
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/* ACPI S3 wakeup */
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#ifdef CONFIG_ACPI_SLEEP
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u32 wakeup_start;
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u32 wakeup_header;
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#endif
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/* APM/BIOS reboot */
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#ifdef CONFIG_X86_32
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u32 machine_real_restart_asm;
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#endif
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};
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/* This must match data at trampoline_32/64.S */
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struct trampoline_header {
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#ifdef CONFIG_X86_32
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u32 start;
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u16 gdt_pad;
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u16 gdt_limit;
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u32 gdt_base;
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#else
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u64 start;
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u32 cr4;
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u32 efer_low;
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u32 efer_high;
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#endif
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};
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extern struct real_mode_header *real_mode_header;
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extern unsigned char real_mode_blob_end[];
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extern unsigned long init_rsp;
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extern unsigned long initial_code;
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extern unsigned long initial_gs;
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extern unsigned char real_mode_blob[];
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extern unsigned char real_mode_relocs[];
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#ifdef CONFIG_X86_32
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extern unsigned char startup_32_smp[];
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extern unsigned char boot_gdt[];
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#else
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extern unsigned char secondary_startup_64[];
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#endif
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extern void __init setup_real_mode(void);
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#endif /* _ARCH_X86_REALMODE_H */
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