Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 trampoline rework from H. Peter Anvin:
 "This code reworks all the "trampoline"/"realmode" code (various bits
  that need to live in the first megabyte of memory, most but not all of
  which runs in real mode at some point) in the kernel into a single
  object.  The main reason for doing this is that it eliminates the last
  place in the kernel where we needed pages to be mapped RWX.  This code
  separates all that code into proper R/RW/RX pages."

Fix up conflicts in arch/x86/kernel/Makefile (mca removed next to reboot
code), and arch/x86/kernel/reboot.c (reboot code moved around in one
branch, modified in this one), and arch/x86/tools/relocs.c (mostly same
code came in earlier due to working around the ld bugs just before the
3.4 release).

Also remove stale x86-relocs entry from scripts/.gitignore as per Peter
Anvin.

* commit '61f5446169046c217a5479517edac3a890c3bee7': (36 commits)
  x86, realmode: Move end signature into header.S
  x86, relocs: When printing an error, say relative or absolute
  x86, relocs: More relocations which may end up as absolute
  x86, relocs: Workaround for binutils 2.22.52.0.1 section bug
  xen-acpi-processor: Add missing #include <xen/xen.h>
  acpi, bgrd: Add missing <linux/io.h> to drivers/acpi/bgrt.c
  x86, realmode: Change EFER to a single u64 field
  x86, realmode: Move kernel/realmode.c to realmode/init.c
  x86, realmode: Move not-common bits out of trampoline_common.S
  x86, realmode: Mask out EFER.LMA when saving trampoline EFER
  x86, realmode: Fix no cache bits test in reboot_32.S
  x86, realmode: Make sure all generated files are listed in targets
  x86, realmode: build fix: remove duplicate build
  x86, realmode: read cr4 and EFER from kernel for 64-bit trampoline
  x86, realmode: fixes compilation issue in tboot.c
  x86, realmode: move relocs from scripts/ to arch/x86/tools
  x86, realmode: header for trampoline code
  x86, realmode: flattened rm hierachy
  x86, realmode: don't copy real_mode_header
  x86, realmode: fix 64-bit wakeup sequence
  ...

32 files changed, 28 insertions, 971 deletions

diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 9bba5b79902b..8215e5652d97 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -35,7 +35,6 @@ obj-y			+= tsc.o io_delay.o rtc.o
 obj-y			+= pci-iommu_table.o
 obj-y			+= resource.o
 
-obj-y				+= trampoline.o trampoline_$(BITS).o
 obj-y				+= process.o
 obj-y				+= i387.o xsave.o
 obj-y				+= ptrace.o
@@ -48,7 +47,6 @@ obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-y				+= cpu/
 obj-y				+= acpi/
 obj-y				+= reboot.o
-obj-$(CONFIG_X86_32)		+= reboot_32.o
 obj-$(CONFIG_X86_MSR)		+= msr.o
 obj-$(CONFIG_X86_CPUID)		+= cpuid.o
 obj-$(CONFIG_PCI)		+= early-quirks.o
diff --git a/arch/x86/kernel/acpi/Makefile b/arch/x86/kernel/acpi/Makefile
index 6f35260bb3ef..163b22581472 100644
--- a/arch/x86/kernel/acpi/Makefile
+++ b/arch/x86/kernel/acpi/Makefile
@@ -1,14 +1,7 @@
-subdir-				:= realmode
-
 obj-$(CONFIG_ACPI)		+= boot.o
-obj-$(CONFIG_ACPI_SLEEP)	+= sleep.o wakeup_rm.o wakeup_$(BITS).o
+obj-$(CONFIG_ACPI_SLEEP)	+= sleep.o wakeup_$(BITS).o
 
 ifneq ($(CONFIG_ACPI_PROCESSOR),)
 obj-y				+= cstate.o
 endif
 
-$(obj)/wakeup_rm.o:    $(obj)/realmode/wakeup.bin
-
-$(obj)/realmode/wakeup.bin: FORCE
-	$(Q)$(MAKE) $(build)=$(obj)/realmode
-
diff --git a/arch/x86/kernel/acpi/realmode/.gitignore b/arch/x86/kernel/acpi/realmode/.gitignore
deleted file mode 100644
index 58f1f48a58f8..000000000000
--- a/arch/x86/kernel/acpi/realmode/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-wakeup.bin
-wakeup.elf
-wakeup.lds
diff --git a/arch/x86/kernel/acpi/realmode/Makefile b/arch/x86/kernel/acpi/realmode/Makefile
deleted file mode 100644
index 6a564ac67ef5..000000000000
--- a/arch/x86/kernel/acpi/realmode/Makefile
+++ /dev/null
@@ -1,59 +0,0 @@
-#
-# arch/x86/kernel/acpi/realmode/Makefile
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-
-always		:= wakeup.bin
-targets		:= wakeup.elf wakeup.lds
-
-wakeup-y	+= wakeup.o wakemain.o video-mode.o copy.o bioscall.o regs.o
-
-# The link order of the video-*.o modules can matter.  In particular,
-# video-vga.o *must* be listed first, followed by video-vesa.o.
-# Hardware-specific drivers should follow in the order they should be
-# probed, and video-bios.o should typically be last.
-wakeup-y	+= video-vga.o
-wakeup-y	+= video-vesa.o
-wakeup-y	+= video-bios.o
-
-targets		+= $(wakeup-y)
-
-bootsrc		:= $(src)/../../../boot
-
-# ---------------------------------------------------------------------------
-
-# How to compile the 16-bit code.  Note we always compile for -march=i386,
-# that way we can complain to the user if the CPU is insufficient.
-# Compile with _SETUP since this is similar to the boot-time setup code.
-KBUILD_CFLAGS	:= $(LINUXINCLUDE) -g -Os -D_SETUP -D_WAKEUP -D__KERNEL__ \
-		   -I$(srctree)/$(bootsrc) \
-		   $(cflags-y) \
-		   -Wall -Wstrict-prototypes \
-		   -march=i386 -mregparm=3 \
-		   -include $(srctree)/$(bootsrc)/code16gcc.h \
-		   -fno-strict-aliasing -fomit-frame-pointer \
-		   $(call cc-option, -ffreestanding) \
-		   $(call cc-option, -fno-toplevel-reorder,\
-			$(call cc-option, -fno-unit-at-a-time)) \
-		   $(call cc-option, -fno-stack-protector) \
-		   $(call cc-option, -mpreferred-stack-boundary=2)
-KBUILD_CFLAGS	+= $(call cc-option, -m32)
-KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
-GCOV_PROFILE := n
-
-WAKEUP_OBJS = $(addprefix $(obj)/,$(wakeup-y))
-
-LDFLAGS_wakeup.elf	:= -T
-
-CPPFLAGS_wakeup.lds += -P -C
-
-$(obj)/wakeup.elf: $(obj)/wakeup.lds $(WAKEUP_OBJS) FORCE
-	$(call if_changed,ld)
-
-OBJCOPYFLAGS_wakeup.bin	:= -O binary
-
-$(obj)/wakeup.bin: $(obj)/wakeup.elf FORCE
-	$(call if_changed,objcopy)
diff --git a/arch/x86/kernel/acpi/realmode/bioscall.S b/arch/x86/kernel/acpi/realmode/bioscall.S
deleted file mode 100644
index f51eb0bb56ce..000000000000
--- a/arch/x86/kernel/acpi/realmode/bioscall.S
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/bioscall.S"
diff --git a/arch/x86/kernel/acpi/realmode/copy.S b/arch/x86/kernel/acpi/realmode/copy.S
deleted file mode 100644
index dc59ebee69d8..000000000000
--- a/arch/x86/kernel/acpi/realmode/copy.S
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/copy.S"
diff --git a/arch/x86/kernel/acpi/realmode/regs.c b/arch/x86/kernel/acpi/realmode/regs.c
deleted file mode 100644
index 6206033ba202..000000000000
--- a/arch/x86/kernel/acpi/realmode/regs.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/regs.c"
diff --git a/arch/x86/kernel/acpi/realmode/video-bios.c b/arch/x86/kernel/acpi/realmode/video-bios.c
deleted file mode 100644
index 7deabc144a27..000000000000
--- a/arch/x86/kernel/acpi/realmode/video-bios.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/video-bios.c"
diff --git a/arch/x86/kernel/acpi/realmode/video-mode.c b/arch/x86/kernel/acpi/realmode/video-mode.c
deleted file mode 100644
index 328ad209f113..000000000000
--- a/arch/x86/kernel/acpi/realmode/video-mode.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/video-mode.c"
diff --git a/arch/x86/kernel/acpi/realmode/video-vesa.c b/arch/x86/kernel/acpi/realmode/video-vesa.c
deleted file mode 100644
index 9dbb9672226a..000000000000
--- a/arch/x86/kernel/acpi/realmode/video-vesa.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/video-vesa.c"
diff --git a/arch/x86/kernel/acpi/realmode/video-vga.c b/arch/x86/kernel/acpi/realmode/video-vga.c
deleted file mode 100644
index bcc81255f374..000000000000
--- a/arch/x86/kernel/acpi/realmode/video-vga.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/video-vga.c"
diff --git a/arch/x86/kernel/acpi/realmode/wakemain.c b/arch/x86/kernel/acpi/realmode/wakemain.c
deleted file mode 100644
index 883962d9eef2..000000000000
--- a/arch/x86/kernel/acpi/realmode/wakemain.c
+++ /dev/null
@@ -1,81 +0,0 @@
-#include "wakeup.h"
-#include "boot.h"
-
-static void udelay(int loops)
-{
-	while (loops--)
-		io_delay();	/* Approximately 1 us */
-}
-
-static void beep(unsigned int hz)
-{
-	u8 enable;
-
-	if (!hz) {
-		enable = 0x00;		/* Turn off speaker */
-	} else {
-		u16 div = 1193181/hz;
-
-		outb(0xb6, 0x43);	/* Ctr 2, squarewave, load, binary */
-		io_delay();
-		outb(div, 0x42);	/* LSB of counter */
-		io_delay();
-		outb(div >> 8, 0x42);	/* MSB of counter */
-		io_delay();
-
-		enable = 0x03;		/* Turn on speaker */
-	}
-	inb(0x61);		/* Dummy read of System Control Port B */
-	io_delay();
-	outb(enable, 0x61);	/* Enable timer 2 output to speaker */
-	io_delay();
-}
-
-#define DOT_HZ		880
-#define DASH_HZ		587
-#define US_PER_DOT	125000
-
-/* Okay, this is totally silly, but it's kind of fun. */
-static void send_morse(const char *pattern)
-{
-	char s;
-
-	while ((s = *pattern++)) {
-		switch (s) {
-		case '.':
-			beep(DOT_HZ);
-			udelay(US_PER_DOT);
-			beep(0);
-			udelay(US_PER_DOT);
-			break;
-		case '-':
-			beep(DASH_HZ);
-			udelay(US_PER_DOT * 3);
-			beep(0);
-			udelay(US_PER_DOT);
-			break;
-		default:	/* Assume it's a space */
-			udelay(US_PER_DOT * 3);
-			break;
-		}
-	}
-}
-
-void main(void)
-{
-	/* Kill machine if structures are wrong */
-	if (wakeup_header.real_magic != 0x12345678)
-		while (1);
-
-	if (wakeup_header.realmode_flags & 4)
-		send_morse("...-");
-
-	if (wakeup_header.realmode_flags & 1)
-		asm volatile("lcallw   $0xc000,$3");
-
-	if (wakeup_header.realmode_flags & 2) {
-		/* Need to call BIOS */
-		probe_cards(0);
-		set_mode(wakeup_header.video_mode);
-	}
-}
diff --git a/arch/x86/kernel/acpi/realmode/wakeup.S b/arch/x86/kernel/acpi/realmode/wakeup.S
deleted file mode 100644
index b4fd836e4053..000000000000
--- a/arch/x86/kernel/acpi/realmode/wakeup.S
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * ACPI wakeup real mode startup stub
- */
-#include <asm/segment.h>
-#include <asm/msr-index.h>
-#include <asm/page_types.h>
-#include <asm/pgtable_types.h>
-#include <asm/processor-flags.h>
-#include "wakeup.h"
-
-	.code16
-	.section ".jump", "ax"
-	.globl	_start
-_start:
-	cli
-	jmp	wakeup_code
-
-/* This should match the structure in wakeup.h */
-		.section ".header", "a"
-		.globl	wakeup_header
-wakeup_header:
-video_mode:	.short	0	/* Video mode number */
-pmode_return:	.byte	0x66, 0xea	/* ljmpl */
-		.long	0	/* offset goes here */
-		.short	__KERNEL_CS
-pmode_cr0:	.long	0	/* Saved %cr0 */
-pmode_cr3:	.long	0	/* Saved %cr3 */
-pmode_cr4:	.long	0	/* Saved %cr4 */
-pmode_efer:	.quad	0	/* Saved EFER */
-pmode_gdt:	.quad	0
-pmode_misc_en:	.quad	0	/* Saved MISC_ENABLE MSR */
-pmode_behavior:	.long	0	/* Wakeup behavior flags */
-realmode_flags:	.long	0
-real_magic:	.long	0
-trampoline_segment:	.word 0
-_pad1:		.byte	0
-wakeup_jmp:	.byte	0xea	/* ljmpw */
-wakeup_jmp_off:	.word	3f
-wakeup_jmp_seg:	.word	0
-wakeup_gdt:	.quad	0, 0, 0
-signature:	.long	WAKEUP_HEADER_SIGNATURE
-
-	.text
-	.code16
-wakeup_code:
-	cld
-
-	/* Apparently some dimwit BIOS programmers don't know how to
-	   program a PM to RM transition, and we might end up here with
-	   junk in the data segment descriptor registers.  The only way
-	   to repair that is to go into PM and fix it ourselves... */
-	movw	$16, %cx
-	lgdtl	%cs:wakeup_gdt
-	movl	%cr0, %eax
-	orb	$X86_CR0_PE, %al
-	movl	%eax, %cr0
-	jmp	1f
-1:	ljmpw	$8, $2f
-2:
-	movw	%cx, %ds
-	movw	%cx, %es
-	movw	%cx, %ss
-	movw	%cx, %fs
-	movw	%cx, %gs
-
-	andb	$~X86_CR0_PE, %al
-	movl	%eax, %cr0
-	jmp	wakeup_jmp
-3:
-	/* Set up segments */
-	movw	%cs, %ax
-	movw	%ax, %ds
-	movw	%ax, %es
-	movw	%ax, %ss
-	lidtl	wakeup_idt
-
-	movl	$wakeup_stack_end, %esp
-
-	/* Clear the EFLAGS */
-	pushl	$0
-	popfl
-
-	/* Check header signature... */
-	movl	signature, %eax
-	cmpl	$WAKEUP_HEADER_SIGNATURE, %eax
-	jne	bogus_real_magic
-
-	/* Check we really have everything... */
-	movl	end_signature, %eax
-	cmpl	$WAKEUP_END_SIGNATURE, %eax
-	jne	bogus_real_magic
-
-	/* Call the C code */
-	calll	main
-
-	/* Restore MISC_ENABLE before entering protected mode, in case
-	   BIOS decided to clear XD_DISABLE during S3. */
-	movl	pmode_behavior, %eax
-	btl	$WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE, %eax
-	jnc	1f
-
-	movl	pmode_misc_en, %eax
-	movl	pmode_misc_en + 4, %edx
-	movl	$MSR_IA32_MISC_ENABLE, %ecx
-	wrmsr
-1:
-
-	/* Do any other stuff... */
-
-#ifndef CONFIG_64BIT
-	/* This could also be done in C code... */
-	movl	pmode_cr3, %eax
-	movl	%eax, %cr3
-
-	movl	pmode_cr4, %ecx
-	jecxz	1f
-	movl	%ecx, %cr4
-1:
-	movl	pmode_efer, %eax
-	movl	pmode_efer + 4, %edx
-	movl	%eax, %ecx
-	orl	%edx, %ecx
-	jz	1f
-	movl	$MSR_EFER, %ecx
-	wrmsr
-1:
-
-	lgdtl	pmode_gdt
-
-	/* This really couldn't... */
-	movl	pmode_cr0, %eax
-	movl	%eax, %cr0
-	jmp	pmode_return
-#else
-	pushw	$0
-	pushw	trampoline_segment
-	pushw	$0
-	lret
-#endif
-
-bogus_real_magic:
-1:
-	hlt
-	jmp	1b
-
-	.data
-	.balign	8
-
-	/* This is the standard real-mode IDT */
-wakeup_idt:
-	.word	0xffff		/* limit */
-	.long	0		/* address */
-	.word	0
-
-	.globl	HEAP, heap_end
-HEAP:
-	.long	wakeup_heap
-heap_end:
-	.long	wakeup_stack
-
-	.bss
-wakeup_heap:
-	.space	2048
-wakeup_stack:
-	.space	2048
-wakeup_stack_end:
-
-	.section ".signature","a"
-end_signature:
-	.long	WAKEUP_END_SIGNATURE
diff --git a/arch/x86/kernel/acpi/realmode/wakeup.h b/arch/x86/kernel/acpi/realmode/wakeup.h
deleted file mode 100644
index 97a29e1430e3..000000000000
--- a/arch/x86/kernel/acpi/realmode/wakeup.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * 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 */
-	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 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;
-	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 WAKEUP_HEADER_OFFSET	8
-#define WAKEUP_HEADER_SIGNATURE 0x51ee1111
-#define WAKEUP_END_SIGNATURE	0x65a22c82
-
-/* Wakeup behavior bits */
-#define WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE     0
-
-#endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */
diff --git a/arch/x86/kernel/acpi/realmode/wakeup.lds.S b/arch/x86/kernel/acpi/realmode/wakeup.lds.S
deleted file mode 100644
index d4f8010a5b1b..000000000000
--- a/arch/x86/kernel/acpi/realmode/wakeup.lds.S
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * wakeup.ld
- *
- * Linker script for the real-mode wakeup code
- */
-#undef i386
-#include "wakeup.h"
-
-OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
-OUTPUT_ARCH(i386)
-ENTRY(_start)
-
-SECTIONS
-{
-	. = 0;
-	.jump	: {
-		*(.jump)
-	} = 0x90909090
-
-	. = WAKEUP_HEADER_OFFSET;
-	.header : {
-		*(.header)
-	}
-
-	. = ALIGN(16);
-	.text : {
-		 *(.text*)
-	} = 0x90909090
-
-	. = ALIGN(16);
-	.rodata : {
-		*(.rodata*)
-	}
-
-	.videocards : {
-		video_cards = .;
-		*(.videocards)
-		video_cards_end = .;
-	}
-
-	. = ALIGN(16);
-	.data : {
-		 *(.data*)
-	}
-
-	. = ALIGN(16);
-	.bss :	{
-		__bss_start = .;
-		*(.bss)
-		__bss_end = .;
-	}
-
-	.signature : {
-		*(.signature)
-	}
-
-	_end = .;
-
-	/DISCARD/ : {
-		*(.note*)
-	}
-}
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 146a49c763a4..95bf99de9058 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -14,8 +14,9 @@
 #include <asm/desc.h>
 #include <asm/pgtable.h>
 #include <asm/cacheflush.h>
+#include <asm/realmode.h>
 
-#include "realmode/wakeup.h"
+#include "../../realmode/rm/wakeup.h"
 #include "sleep.h"
 
 unsigned long acpi_realmode_flags;
@@ -36,13 +37,9 @@ asmlinkage void acpi_enter_s3(void)
  */
 int acpi_suspend_lowlevel(void)
 {
-	struct wakeup_header *header;
-	/* address in low memory of the wakeup routine. */
-	char *acpi_realmode;
+	struct wakeup_header *header =
+		(struct wakeup_header *) __va(real_mode_header->wakeup_header);
 
-	acpi_realmode = TRAMPOLINE_SYM(acpi_wakeup_code);
-
-	header = (struct wakeup_header *)(acpi_realmode + WAKEUP_HEADER_OFFSET);
 	if (header->signature != WAKEUP_HEADER_SIGNATURE) {
 		printk(KERN_ERR "wakeup header does not match\n");
 		return -EINVAL;
@@ -50,27 +47,6 @@ int acpi_suspend_lowlevel(void)
 
 	header->video_mode = saved_video_mode;
 
-	header->wakeup_jmp_seg = acpi_wakeup_address >> 4;
-
-	/*
-	 * Set up the wakeup GDT.  We set these up as Big Real Mode,
-	 * that is, with limits set to 4 GB.  At least the Lenovo
-	 * Thinkpad X61 is known to need this for the video BIOS
-	 * initialization quirk to work; this is likely to also
-	 * be the case for other laptops or integrated video devices.
-	 */
-
-	/* GDT[0]: GDT self-pointer */
-	header->wakeup_gdt[0] =
-		(u64)(sizeof(header->wakeup_gdt) - 1) +
-		((u64)__pa(&header->wakeup_gdt) << 16);
-	/* GDT[1]: big real mode-like code segment */
-	header->wakeup_gdt[1] =
-		GDT_ENTRY(0x809b, acpi_wakeup_address, 0xfffff);
-	/* GDT[2]: big real mode-like data segment */
-	header->wakeup_gdt[2] =
-		GDT_ENTRY(0x8093, acpi_wakeup_address, 0xfffff);
-
 #ifndef CONFIG_64BIT
 	store_gdt((struct desc_ptr *)&header->pmode_gdt);
 
@@ -95,7 +71,6 @@ int acpi_suspend_lowlevel(void)
 	header->pmode_cr3 = (u32)__pa(&initial_page_table);
 	saved_magic = 0x12345678;
 #else /* CONFIG_64BIT */
-	header->trampoline_segment = trampoline_address() >> 4;
 #ifdef CONFIG_SMP
 	stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
 	early_gdt_descr.address =
diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h
index d68677a2a010..5653a5791ec9 100644
--- a/arch/x86/kernel/acpi/sleep.h
+++ b/arch/x86/kernel/acpi/sleep.h
@@ -2,8 +2,8 @@
  *	Variables and functions used by the code in sleep.c
  */
 
-#include <asm/trampoline.h>
 #include <linux/linkage.h>
+#include <asm/realmode.h>
 
 extern unsigned long saved_video_mode;
 extern long saved_magic;
diff --git a/arch/x86/kernel/acpi/wakeup_rm.S b/arch/x86/kernel/acpi/wakeup_rm.S
deleted file mode 100644
index 63b8ab524f2c..000000000000
--- a/arch/x86/kernel/acpi/wakeup_rm.S
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * Wrapper script for the realmode binary as a transport object
- * before copying to low memory.
- */
-#include <asm/page_types.h>
-
-	.section ".x86_trampoline","a"
-	.balign PAGE_SIZE
-	.globl	acpi_wakeup_code
-acpi_wakeup_code:
-	.incbin	"arch/x86/kernel/acpi/realmode/wakeup.bin"
-	.size	acpi_wakeup_code, .-acpi_wakeup_code
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 51ff18616d50..c18f59d10101 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -14,7 +14,6 @@
 #include <asm/sections.h>
 #include <asm/e820.h>
 #include <asm/page.h>
-#include <asm/trampoline.h>
 #include <asm/apic.h>
 #include <asm/io_apic.h>
 #include <asm/bios_ebda.h>
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 3a3b779f41d3..037df57a99ac 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -24,7 +24,6 @@
 #include <asm/sections.h>
 #include <asm/kdebug.h>
 #include <asm/e820.h>
-#include <asm/trampoline.h>
 #include <asm/bios_ebda.h>
 
 static void __init zap_identity_mappings(void)
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 463c9797ca6a..d42ab17b7397 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -274,10 +274,7 @@ num_subarch_entries = (. - subarch_entries) / 4
  * If cpu hotplug is not supported then this code can go in init section
  * which will be freed later
  */
-
 __CPUINIT
-
-#ifdef CONFIG_SMP
 ENTRY(startup_32_smp)
 	cld
 	movl $(__BOOT_DS),%eax
@@ -288,7 +285,7 @@ ENTRY(startup_32_smp)
 	movl pa(stack_start),%ecx
 	movl %eax,%ss
 	leal -__PAGE_OFFSET(%ecx),%esp
-#endif /* CONFIG_SMP */
+
 default_entry:
 
 /*
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 7a40f2447321..94bf9cc2c7ee 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -139,10 +139,6 @@ ident_complete:
 	/* Fixup phys_base */
 	addq	%rbp, phys_base(%rip)
 
-	/* Fixup trampoline */
-	addq	%rbp, trampoline_level4_pgt + 0(%rip)
-	addq	%rbp, trampoline_level4_pgt + (511*8)(%rip)
-
 	/* Due to ENTRY(), sometimes the empty space gets filled with
 	 * zeros. Better take a jmp than relying on empty space being
 	 * filled with 0x90 (nop)
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index fbca2e6223bf..d2b56489d70f 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -27,7 +27,6 @@
 #include <asm/proto.h>
 #include <asm/bios_ebda.h>
 #include <asm/e820.h>
-#include <asm/trampoline.h>
 #include <asm/setup.h>
 #include <asm/smp.h>
 
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 77215c23fba1..79c45af81604 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -24,6 +24,7 @@
 #ifdef CONFIG_X86_32
 # include <linux/ctype.h>
 # include <linux/mc146818rtc.h>
+# include <asm/realmode.h>
 #else
 # include <asm/x86_init.h>
 #endif
@@ -156,15 +157,10 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
 	return 0;
 }
 
-extern const unsigned char machine_real_restart_asm[];
-extern const u64 machine_real_restart_gdt[3];
-
 void machine_real_restart(unsigned int type)
 {
-	void *restart_va;
-	unsigned long restart_pa;
-	void (*restart_lowmem)(unsigned int);
-	u64 *lowmem_gdt;
+	void (*restart_lowmem)(unsigned int) = (void (*)(unsigned int))
+		real_mode_header->machine_real_restart_asm;
 
 	local_irq_disable();
 
@@ -195,21 +191,6 @@ void machine_real_restart(unsigned int type)
 	 * too. */
 	*((unsigned short *)0x472) = reboot_mode;
 
-	/* Patch the GDT in the low memory trampoline */
-	lowmem_gdt = TRAMPOLINE_SYM(machine_real_restart_gdt);
-
-	restart_va = TRAMPOLINE_SYM(machine_real_restart_asm);
-	restart_pa = virt_to_phys(restart_va);
-	restart_lowmem = (void (*)(unsigned int))restart_pa;
-
-	/* GDT[0]: GDT self-pointer */
-	lowmem_gdt[0] =
-		(u64)(sizeof(machine_real_restart_gdt) - 1) +
-		((u64)virt_to_phys(lowmem_gdt) << 16);
-	/* GDT[1]: 64K real mode code segment */
-	lowmem_gdt[1] =
-		GDT_ENTRY(0x009b, restart_pa, 0xffff);
-
 	/* Jump to the identity-mapped low memory code */
 	restart_lowmem(type);
 }
diff --git a/arch/x86/kernel/reboot_32.S b/arch/x86/kernel/reboot_32.S
deleted file mode 100644
index 1d5c46df0d78..000000000000
--- a/arch/x86/kernel/reboot_32.S
+++ /dev/null
@@ -1,135 +0,0 @@
-#include <linux/linkage.h>
-#include <linux/init.h>
-#include <asm/segment.h>
-#include <asm/page_types.h>
-
-/*
- * The following code and data reboots the machine by switching to real
- * mode and jumping to the BIOS reset entry point, as if the CPU has
- * really been reset.  The previous version asked the keyboard
- * controller to pulse the CPU reset line, which is more thorough, but
- * doesn't work with at least one type of 486 motherboard.  It is easy
- * to stop this code working; hence the copious comments.
- *
- * This code is called with the restart type (0 = BIOS, 1 = APM) in %eax.
- */
-	.section ".x86_trampoline","a"
-	.balign 16
-	.code32
-ENTRY(machine_real_restart_asm)
-r_base = .
-	/* Get our own relocated address */
-	call	1f
-1:	popl	%ebx
-	subl	$(1b - r_base), %ebx
-
-	/* Compute the equivalent real-mode segment */
-	movl	%ebx, %ecx
-	shrl	$4, %ecx
-	
-	/* Patch post-real-mode segment jump */
-	movw	(dispatch_table - r_base)(%ebx,%eax,2),%ax
-	movw	%ax, (101f - r_base)(%ebx)
-	movw	%cx, (102f - r_base)(%ebx)
-
-	/* Set up the IDT for real mode. */
-	lidtl	(machine_real_restart_idt - r_base)(%ebx)
-
-	/*
-	 * Set up a GDT from which we can load segment descriptors for real
-	 * mode.  The GDT is not used in real mode; it is just needed here to
-	 * prepare the descriptors.
-	 */
-	lgdtl	(machine_real_restart_gdt - r_base)(%ebx)
-
-	/*
-	 * Load the data segment registers with 16-bit compatible values
-	 */
-	movl	$16, %ecx
-	movl	%ecx, %ds
-	movl	%ecx, %es
-	movl	%ecx, %fs
-	movl	%ecx, %gs
-	movl	%ecx, %ss
-	ljmpl	$8, $1f - r_base
-
-/*
- * This is 16-bit protected mode code to disable paging and the cache,
- * switch to real mode and jump to the BIOS reset code.
- *
- * The instruction that switches to real mode by writing to CR0 must be
- * followed immediately by a far jump instruction, which set CS to a
- * valid value for real mode, and flushes the prefetch queue to avoid
- * running instructions that have already been decoded in protected
- * mode.
- *
- * Clears all the flags except ET, especially PG (paging), PE
- * (protected-mode enable) and TS (task switch for coprocessor state
- * save).  Flushes the TLB after paging has been disabled.  Sets CD and
- * NW, to disable the cache on a 486, and invalidates the cache.  This
- * is more like the state of a 486 after reset.  I don't know if
- * something else should be done for other chips.
- *
- * More could be done here to set up the registers as if a CPU reset had
- * occurred; hopefully real BIOSs don't assume much.  This is not the
- * actual BIOS entry point, anyway (that is at 0xfffffff0).
- *
- * Most of this work is probably excessive, but it is what is tested.
- */
-	.code16
-1:
-	xorl	%ecx, %ecx
-	movl	%cr0, %eax
-	andl	$0x00000011, %eax
-	orl	$0x60000000, %eax
-	movl	%eax, %cr0
-	movl	%ecx, %cr3
-	movl	%cr0, %edx
-	andl	$0x60000000, %edx	/* If no cache bits -> no wbinvd */
-	jz	2f
-	wbinvd
-2:
-	andb	$0x10, %al
-	movl	%eax, %cr0
-	.byte	0xea			/* ljmpw */
-101:	.word	0			/* Offset */
-102:	.word	0			/* Segment */
-
-bios:
-	ljmpw	$0xf000, $0xfff0
-
-apm:
-	movw	$0x1000, %ax
-	movw	%ax, %ss
-	movw	$0xf000, %sp
-	movw	$0x5307, %ax
-	movw	$0x0001, %bx
-	movw	$0x0003, %cx
-	int	$0x15
-
-END(machine_real_restart_asm)
-
-	.balign 16
-	/* These must match <asm/reboot.h */
-dispatch_table:
-	.word	bios - r_base
-	.word	apm - r_base
-END(dispatch_table)
-
-	.balign 16
-machine_real_restart_idt:
-	.word	0xffff		/* Length - real mode default value */
-	.long	0		/* Base - real mode default value */
-END(machine_real_restart_idt)
-
-	.balign 16
-ENTRY(machine_real_restart_gdt)
-	.quad	0		/* Self-pointer, filled in by PM code */
-	.quad	0		/* 16-bit code segment, filled in by PM code */
-	/*
-	 * 16-bit data segment with the selector value 16 = 0x10 and
-	 * base value 0x100; since this is consistent with real mode
-	 * semantics we don't have to reload the segments once CR0.PE = 0.
-	 */
-	.quad	GDT_ENTRY(0x0093, 0x100, 0xffff)
-END(machine_real_restart_gdt)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 982e44f960db..16be6dc14db1 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -73,7 +73,7 @@
 
 #include <asm/mtrr.h>
 #include <asm/apic.h>
-#include <asm/trampoline.h>
+#include <asm/realmode.h>
 #include <asm/e820.h>
 #include <asm/mpspec.h>
 #include <asm/setup.h>
@@ -909,7 +909,7 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_DEBUG "initial memory mapped: [mem 0x00000000-%#010lx]\n",
 			(max_pfn_mapped<<PAGE_SHIFT) - 1);
 
-	setup_trampolines();
+	setup_real_mode();
 
 	init_gbpages();
 
@@ -968,6 +968,8 @@ void __init setup_arch(char **cmdline_p)
 	if (boot_cpu_data.cpuid_level >= 0) {
 		/* A CPU has %cr4 if and only if it has CPUID */
 		mmu_cr4_features = read_cr4();
+		if (trampoline_cr4_features)
+			*trampoline_cr4_features = mmu_cr4_features;
 	}
 
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 433529e29be4..f56f96da77f5 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -57,7 +57,7 @@
 #include <asm/nmi.h>
 #include <asm/irq.h>
 #include <asm/idle.h>
-#include <asm/trampoline.h>
+#include <asm/realmode.h>
 #include <asm/cpu.h>
 #include <asm/numa.h>
 #include <asm/pgtable.h>
@@ -73,6 +73,8 @@
 #include <asm/smpboot_hooks.h>
 #include <asm/i8259.h>
 
+#include <asm/realmode.h>
+
 /* State of each CPU */
 DEFINE_PER_CPU(int, cpu_state) = { 0 };
 
@@ -660,8 +662,12 @@ static void __cpuinit announce_cpu(int cpu, int apicid)
  */
 static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 {
+	volatile u32 *trampoline_status =
+		(volatile u32 *) __va(real_mode_header->trampoline_status);
+	/* start_ip had better be page-aligned! */
+	unsigned long start_ip = real_mode_header->trampoline_start;
+
 	unsigned long boot_error = 0;
-	unsigned long start_ip;
 	int timeout;
 
 	alternatives_smp_switch(1);
@@ -684,9 +690,6 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 	initial_code = (unsigned long)start_secondary;
 	stack_start  = idle->thread.sp;
 
-	/* start_ip had better be page-aligned! */
-	start_ip = trampoline_address();
-
 	/* So we see what's up */
 	announce_cpu(cpu, apicid);
 
@@ -749,8 +752,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 			pr_debug("CPU%d: has booted.\n", cpu);
 		} else {
 			boot_error = 1;
-			if (*(volatile u32 *)TRAMPOLINE_SYM(trampoline_status)
-			    == 0xA5A5A5A5)
+			if (*trampoline_status == 0xA5A5A5A5)
 				/* trampoline started but...? */
 				pr_err("CPU%d: Stuck ??\n", cpu);
 			else
@@ -776,7 +778,7 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
 	}
 
 	/* mark "stuck" area as not stuck */
-	*(volatile u32 *)TRAMPOLINE_SYM(trampoline_status) = 0;
+	*trampoline_status = 0;
 
 	if (get_uv_system_type() != UV_NON_UNIQUE_APIC) {
 		/*
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index 6410744ac5cb..f84fe00fad48 100644
--- a/arch/x86/kernel/tboot.c
+++ b/arch/x86/kernel/tboot.c
@@ -32,7 +32,7 @@
 #include <linux/mm.h>
 #include <linux/tboot.h>
 
-#include <asm/trampoline.h>
+#include <asm/realmode.h>
 #include <asm/processor.h>
 #include <asm/bootparam.h>
 #include <asm/pgtable.h>
@@ -44,7 +44,7 @@
 #include <asm/e820.h>
 #include <asm/io.h>
 
-#include "acpi/realmode/wakeup.h"
+#include "../realmode/rm/wakeup.h"
 
 /* Global pointer to shared data; NULL means no measured launch. */
 struct tboot *tboot __read_mostly;
@@ -201,7 +201,8 @@ static int tboot_setup_sleep(void)
 		add_mac_region(e820.map[i].addr, e820.map[i].size);
 	}
 
-	tboot->acpi_sinfo.kernel_s3_resume_vector = acpi_wakeup_address;
+	tboot->acpi_sinfo.kernel_s3_resume_vector =
+		real_mode_header->wakeup_start;
 
 	return 0;
 }
diff --git a/arch/x86/kernel/trampoline.c b/arch/x86/kernel/trampoline.c
deleted file mode 100644
index a73b61055ad6..000000000000
--- a/arch/x86/kernel/trampoline.c
+++ /dev/null
@@ -1,42 +0,0 @@
-#include <linux/io.h>
-#include <linux/memblock.h>
-
-#include <asm/trampoline.h>
-#include <asm/cacheflush.h>
-#include <asm/pgtable.h>
-
-unsigned char *x86_trampoline_base;
-
-void __init setup_trampolines(void)
-{
-	phys_addr_t mem;
-	size_t size = PAGE_ALIGN(x86_trampoline_end - x86_trampoline_start);
-
-	/* Has to be in very low memory so we can execute real-mode AP code. */
-	mem = memblock_find_in_range(0, 1<<20, size, PAGE_SIZE);
-	if (!mem)
-		panic("Cannot allocate trampoline\n");
-
-	x86_trampoline_base = __va(mem);
-	memblock_reserve(mem, size);
-
-	printk(KERN_DEBUG "Base memory trampoline at [%p] %llx size %zu\n",
-	       x86_trampoline_base, (unsigned long long)mem, size);
-
-	memcpy(x86_trampoline_base, x86_trampoline_start, size);
-}
-
-/*
- * setup_trampolines() gets called very early, to guarantee the
- * availability of low memory.  This is before the proper kernel page
- * tables are set up, so we cannot set page permissions in that
- * function.  Thus, we use an arch_initcall instead.
- */
-static int __init configure_trampolines(void)
-{
-	size_t size = PAGE_ALIGN(x86_trampoline_end - x86_trampoline_start);
-
-	set_memory_x((unsigned long)x86_trampoline_base, size >> PAGE_SHIFT);
-	return 0;
-}
-arch_initcall(configure_trampolines);
diff --git a/arch/x86/kernel/trampoline_32.S b/arch/x86/kernel/trampoline_32.S
deleted file mode 100644
index 451c0a7ef7fd..000000000000
--- a/arch/x86/kernel/trampoline_32.S
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- *
- *	Trampoline.S	Derived from Setup.S by Linus Torvalds
- *
- *	4 Jan 1997 Michael Chastain: changed to gnu as.
- *
- *	This is only used for booting secondary CPUs in SMP machine
- *
- *	Entry: CS:IP point to the start of our code, we are 
- *	in real mode with no stack, but the rest of the 
- *	trampoline page to make our stack and everything else
- *	is a mystery.
- *
- *	We jump into arch/x86/kernel/head_32.S.
- *
- *	On entry to trampoline_data, the processor is in real mode
- *	with 16-bit addressing and 16-bit data.  CS has some value
- *	and IP is zero.  Thus, data addresses need to be absolute
- *	(no relocation) and are taken with regard to r_base.
- *
- *	If you work on this file, check the object module with
- *	objdump --reloc to make sure there are no relocation
- *	entries except for:
- *
- *	TYPE              VALUE
- *	R_386_32          startup_32_smp
- *	R_386_32          boot_gdt
- */
-
-#include <linux/linkage.h>
-#include <linux/init.h>
-#include <asm/segment.h>
-#include <asm/page_types.h>
-
-#ifdef CONFIG_SMP
-
-	.section ".x86_trampoline","a"
-	.balign PAGE_SIZE
-	.code16
-
-ENTRY(trampoline_data)
-r_base = .
-	wbinvd			# Needed for NUMA-Q should be harmless for others
-	mov	%cs, %ax	# Code and data in the same place
-	mov	%ax, %ds
-
-	cli			# We should be safe anyway
-
-	movl	$0xA5A5A5A5, trampoline_status - r_base
-				# write marker for master knows we're running
-
-	/* GDT tables in non default location kernel can be beyond 16MB and
-	 * lgdt will not be able to load the address as in real mode default
-	 * operand size is 16bit. Use lgdtl instead to force operand size
-	 * to 32 bit.
-	 */
-
-	lidtl	boot_idt_descr - r_base	# load idt with 0, 0
-	lgdtl	boot_gdt_descr - r_base	# load gdt with whatever is appropriate
-
-	xor	%ax, %ax
-	inc	%ax		# protected mode (PE) bit
-	lmsw	%ax		# into protected mode
-	# flush prefetch and jump to startup_32_smp in arch/i386/kernel/head.S
-	ljmpl	$__BOOT_CS, $(startup_32_smp-__PAGE_OFFSET)
-
-	# These need to be in the same 64K segment as the above;
-	# hence we don't use the boot_gdt_descr defined in head.S
-boot_gdt_descr:
-	.word	__BOOT_DS + 7			# gdt limit
-	.long	boot_gdt - __PAGE_OFFSET	# gdt base
-
-boot_idt_descr:
-	.word	0				# idt limit = 0
-	.long	0				# idt base = 0L
-
-ENTRY(trampoline_status)
-	.long	0
-
-.globl trampoline_end
-trampoline_end:
-
-#endif /* CONFIG_SMP */
diff --git a/arch/x86/kernel/trampoline_64.S b/arch/x86/kernel/trampoline_64.S
deleted file mode 100644
index 09ff51799e96..000000000000
--- a/arch/x86/kernel/trampoline_64.S
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- *
- *	Trampoline.S	Derived from Setup.S by Linus Torvalds
- *
- *	4 Jan 1997 Michael Chastain: changed to gnu as.
- *	15 Sept 2005 Eric Biederman: 64bit PIC support
- *
- *	Entry: CS:IP point to the start of our code, we are 
- *	in real mode with no stack, but the rest of the 
- *	trampoline page to make our stack and everything else
- *	is a mystery.
- *
- *	On entry to trampoline_data, the processor is in real mode
- *	with 16-bit addressing and 16-bit data.  CS has some value
- *	and IP is zero.  Thus, data addresses need to be absolute
- *	(no relocation) and are taken with regard to r_base.
- *
- *	With the addition of trampoline_level4_pgt this code can
- *	now enter a 64bit kernel that lives at arbitrary 64bit
- *	physical addresses.
- *
- *	If you work on this file, check the object module with objdump
- *	--full-contents --reloc to make sure there are no relocation
- *	entries.
- */
-
-#include <linux/linkage.h>
-#include <linux/init.h>
-#include <asm/pgtable_types.h>
-#include <asm/page_types.h>
-#include <asm/msr.h>
-#include <asm/segment.h>
-#include <asm/processor-flags.h>
-
-	.section ".x86_trampoline","a"
-	.balign PAGE_SIZE
-	.code16
-
-ENTRY(trampoline_data)
-r_base = .
-	cli			# We should be safe anyway
-	wbinvd
-	mov	%cs, %ax	# Code and data in the same place
-	mov	%ax, %ds
-	mov	%ax, %es
-	mov	%ax, %ss
-
-
-	movl	$0xA5A5A5A5, trampoline_status - r_base
-				# write marker for master knows we're running
-
-					# Setup stack
-	movw	$(trampoline_stack_end - r_base), %sp
-
-	call	verify_cpu		# Verify the cpu supports long mode
-	testl   %eax, %eax		# Check for return code
-	jnz	no_longmode
-
-	mov	%cs, %ax
-	movzx	%ax, %esi		# Find the 32bit trampoline location
-	shll	$4, %esi
-
-					# Fixup the absolute vectors
-	leal	(startup_32 - r_base)(%esi), %eax
-	movl	%eax, startup_32_vector - r_base
-	leal	(startup_64 - r_base)(%esi), %eax
-	movl	%eax, startup_64_vector - r_base
-	leal	(tgdt - r_base)(%esi), %eax
-	movl	%eax, (tgdt + 2 - r_base)
-
-	/*
-	 * GDT tables in non default location kernel can be beyond 16MB and
-	 * lgdt will not be able to load the address as in real mode default
-	 * operand size is 16bit. Use lgdtl instead to force operand size
-	 * to 32 bit.
-	 */
-
-	lidtl	tidt - r_base	# load idt with 0, 0
-	lgdtl	tgdt - r_base	# load gdt with whatever is appropriate
-
-	mov	$X86_CR0_PE, %ax	# protected mode (PE) bit
-	lmsw	%ax			# into protected mode
-
-	# flush prefetch and jump to startup_32
-	ljmpl	*(startup_32_vector - r_base)
-
-	.code32
-	.balign 4
-startup_32:
-	movl	$__KERNEL_DS, %eax	# Initialize the %ds segment register
-	movl	%eax, %ds
-
-	movl	$X86_CR4_PAE, %eax
-	movl	%eax, %cr4		# Enable PAE mode
-
-					# Setup trampoline 4 level pagetables
-	leal	(trampoline_level4_pgt - r_base)(%esi), %eax
-	movl	%eax, %cr3
-
-	movl	$MSR_EFER, %ecx
-	movl	$(1 << _EFER_LME), %eax	# Enable Long Mode
-	xorl	%edx, %edx
-	wrmsr
-
-	# Enable paging and in turn activate Long Mode
-	# Enable protected mode
-	movl	$(X86_CR0_PG | X86_CR0_PE), %eax
-	movl	%eax, %cr0
-
-	/*
-	 * At this point we're in long mode but in 32bit compatibility mode
-	 * with EFER.LME = 1, CS.L = 0, CS.D = 1 (and in turn
-	 * EFER.LMA = 1). Now we want to jump in 64bit mode, to do that we use
-	 * the new gdt/idt that has __KERNEL_CS with CS.L = 1.
-	 */
-	ljmp	*(startup_64_vector - r_base)(%esi)
-
-	.code64
-	.balign 4
-startup_64:
-	# Now jump into the kernel using virtual addresses
-	movq	$secondary_startup_64, %rax
-	jmp	*%rax
-
-	.code16
-no_longmode:
-	hlt
-	jmp no_longmode
-#include "verify_cpu.S"
-
-	.balign 4
-	# Careful these need to be in the same 64K segment as the above;
-tidt:
-	.word	0			# idt limit = 0
-	.word	0, 0			# idt base = 0L
-
-	# Duplicate the global descriptor table
-	# so the kernel can live anywhere
-	.balign 4
-tgdt:
-	.short	tgdt_end - tgdt		# gdt limit
-	.long	tgdt - r_base
-	.short 0
-	.quad	0x00cf9b000000ffff	# __KERNEL32_CS
-	.quad	0x00af9b000000ffff	# __KERNEL_CS
-	.quad	0x00cf93000000ffff	# __KERNEL_DS
-tgdt_end:
-
-	.balign 4
-startup_32_vector:
-	.long	startup_32 - r_base
-	.word	__KERNEL32_CS, 0
-
-	.balign 4
-startup_64_vector:
-	.long	startup_64 - r_base
-	.word	__KERNEL_CS, 0
-
-	.balign 4
-ENTRY(trampoline_status)
-	.long	0
-
-trampoline_stack:
-	.org 0x1000
-trampoline_stack_end:
-ENTRY(trampoline_level4_pgt)
-	.quad	level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE
-	.fill	510,8,0
-	.quad	level3_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE
-
-ENTRY(trampoline_end)
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 0f703f10901a..22a1530146a8 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -197,18 +197,6 @@ SECTIONS
 
 	INIT_DATA_SECTION(16)
 
-	/*
-	 * Code and data for a variety of lowlevel trampolines, to be
-	 * copied into base memory (< 1 MiB) during initialization.
-	 * Since it is copied early, the main copy can be discarded
-	 * afterwards.
-	 */
-	 .x86_trampoline : AT(ADDR(.x86_trampoline) - LOAD_OFFSET) {
-		x86_trampoline_start = .;
-		*(.x86_trampoline)
-		x86_trampoline_end = .;
-	}
-
 	.x86_cpu_dev.init : AT(ADDR(.x86_cpu_dev.init) - LOAD_OFFSET) {
 		__x86_cpu_dev_start = .;
 		*(.x86_cpu_dev.init)