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

* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, efi: Break up large initrd reads
  x86, efi: EFI boot stub support
  efi: Add EFI file I/O data types
  efi.h: Add boottime->locate_handle search types
  efi.h: Add graphics protocol guids
  efi.h: Add allocation types for boottime->allocate_pages()
  efi.h: Add efi_image_loaded_t
  efi.h: Add struct definition for boot time services
  x86: Don't use magic strings for EFI loader signature
  x86: Add missing bzImage fields to struct setup_header

arch/x86/Kconfig

@@ -1489,6 +1489,13 @@ config EFI
 	  resultant kernel should continue to boot on existing non-EFI
 	  platforms.
 
+config EFI_STUB
+       bool "EFI stub support"
+       depends on EFI
+       ---help---
+          This kernel feature allows a bzImage to be loaded directly
+	  by EFI firmware without the use of a bootloader.
+
 config SECCOMP
 	def_bool y
 	prompt "Enable seccomp to safely compute untrusted bytecode"

arch/x86/boot/compressed/Makefile

@@ -23,7 +23,15 @@ LDFLAGS_vmlinux := -T
 
 hostprogs-y	:= mkpiggy
 
-$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o $(obj)/piggy.o FORCE
+VMLINUX_OBJS = $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o \
+	$(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o \
+	$(obj)/piggy.o
+
+ifeq ($(CONFIG_EFI_STUB), y)
+	VMLINUX_OBJS += $(obj)/eboot.o $(obj)/efi_stub_$(BITS).o
+endif
+
+$(obj)/vmlinux: $(VMLINUX_OBJS) FORCE
 	$(call if_changed,ld)
 	@:
 

arch/x86/boot/compressed/eboot.h

+#ifndef BOOT_COMPRESSED_EBOOT_H
+#define BOOT_COMPRESSED_EBOOT_H
+
+#define SEG_TYPE_DATA		(0 << 3)
+#define SEG_TYPE_READ_WRITE	(1 << 1)
+#define SEG_TYPE_CODE		(1 << 3)
+#define SEG_TYPE_EXEC_READ	(1 << 1)
+#define SEG_TYPE_TSS		((1 << 3) | (1 << 0))
+#define SEG_OP_SIZE_32BIT	(1 << 0)
+#define SEG_GRANULARITY_4KB	(1 << 0)
+
+#define DESC_TYPE_CODE_DATA	(1 << 0)
+
+#define EFI_PAGE_SIZE		(1UL << EFI_PAGE_SHIFT)
+#define EFI_READ_CHUNK_SIZE	(1024 * 1024)
+
+#define PIXEL_RGB_RESERVED_8BIT_PER_COLOR		0
+#define PIXEL_BGR_RESERVED_8BIT_PER_COLOR		1
+#define PIXEL_BIT_MASK					2
+#define PIXEL_BLT_ONLY					3
+#define PIXEL_FORMAT_MAX				4
+
+struct efi_pixel_bitmask {
+	u32 red_mask;
+	u32 green_mask;
+	u32 blue_mask;
+	u32 reserved_mask;
+};
+
+struct efi_graphics_output_mode_info {
+	u32 version;
+	u32 horizontal_resolution;
+	u32 vertical_resolution;
+	int pixel_format;
+	struct efi_pixel_bitmask pixel_information;
+	u32 pixels_per_scan_line;
+} __packed;
+
+struct efi_graphics_output_protocol_mode {
+	u32 max_mode;
+	u32 mode;
+	unsigned long info;
+	unsigned long size_of_info;
+	u64 frame_buffer_base;
+	unsigned long frame_buffer_size;
+} __packed;
+
+struct efi_graphics_output_protocol {
+	void *query_mode;
+	unsigned long set_mode;
+	unsigned long blt;
+	struct efi_graphics_output_protocol_mode *mode;
+};
+
+struct efi_uga_draw_protocol {
+	void *get_mode;
+	void *set_mode;
+	void *blt;
+};
+
+#endif /* BOOT_COMPRESSED_EBOOT_H */

arch/x86/boot/compressed/efi_stub_32.S

+/*
+ * EFI call stub for IA32.
+ *
+ * This stub allows us to make EFI calls in physical mode with interrupts
+ * turned off. Note that this implementation is different from the one in
+ * arch/x86/platform/efi/efi_stub_32.S because we're _already_ in physical
+ * mode at this point.
+ */
+
+#include <linux/linkage.h>
+#include <asm/page_types.h>
+
+/*
+ * efi_call_phys(void *, ...) is a function with variable parameters.
+ * All the callers of this function assure that all the parameters are 4-bytes.
+ */
+
+/*
+ * In gcc calling convention, EBX, ESP, EBP, ESI and EDI are all callee save.
+ * So we'd better save all of them at the beginning of this function and restore
+ * at the end no matter how many we use, because we can not assure EFI runtime
+ * service functions will comply with gcc calling convention, too.
+ */
+
+.text
+ENTRY(efi_call_phys)
+	/*
+	 * 0. The function can only be called in Linux kernel. So CS has been
+	 * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
+	 * the values of these registers are the same. And, the corresponding
+	 * GDT entries are identical. So I will do nothing about segment reg
+	 * and GDT, but change GDT base register in prelog and epilog.
+	 */
+
+	/*
+	 * 1. Because we haven't been relocated by this point we need to
+	 * use relative addressing.
+	 */
+	call	1f
+1:	popl	%edx
+	subl	$1b, %edx
+
+	/*
+	 * 2. Now on the top of stack is the return
+	 * address in the caller of efi_call_phys(), then parameter 1,
+	 * parameter 2, ..., param n. To make things easy, we save the return
+	 * address of efi_call_phys in a global variable.
+	 */
+	popl	%ecx
+	movl	%ecx, saved_return_addr(%edx)
+	/* get the function pointer into ECX*/
+	popl	%ecx
+	movl	%ecx, efi_rt_function_ptr(%edx)
+
+	/*
+	 * 3. Call the physical function.
+	 */
+	call	*%ecx
+
+	/*
+	 * 4. Balance the stack. And because EAX contain the return value,
+	 * we'd better not clobber it. We need to calculate our address
+	 * again because %ecx and %edx are not preserved across EFI function
+	 * calls.
+	 */
+	call	1f
+1:	popl	%edx
+	subl	$1b, %edx
+
+	movl	efi_rt_function_ptr(%edx), %ecx
+	pushl	%ecx
+
+	/*
+	 * 10. Push the saved return address onto the stack and return.
+	 */
+	movl	saved_return_addr(%edx), %ecx
+	pushl	%ecx
+	ret
+ENDPROC(efi_call_phys)
+.previous
+
+.data
+saved_return_addr:
+	.long 0
+efi_rt_function_ptr:
+	.long 0

arch/x86/boot/compressed/efi_stub_64.S

+#include "../../platform/efi/efi_stub_64.S"

arch/x86/boot/compressed/head_32.S

@@ -32,6 +32,28 @@
 
 	__HEAD
 ENTRY(startup_32)
+#ifdef CONFIG_EFI_STUB
+	/*
+	 * We don't need the return address, so set up the stack so
+	 * efi_main() can find its arugments.
+	 */
+	add	$0x4, %esp
+
+	call	efi_main
+	cmpl	$0, %eax
+	je	preferred_addr
+	movl	%eax, %esi
+	call	1f
+1:
+	popl	%eax
+	subl	$1b, %eax
+	subl	BP_pref_address(%esi), %eax
+	add	BP_code32_start(%esi), %eax
+	leal	preferred_addr(%eax), %eax
+	jmp	*%eax
+
+preferred_addr:
+#endif
 	cld
 	/*
 	 * Test KEEP_SEGMENTS flag to see if the bootloader is asking

arch/x86/boot/compressed/head_64.S

@@ -199,6 +199,26 @@ ENTRY(startup_64)
 	 * an identity mapped page table being provied that maps our
 	 * entire text+data+bss and hopefully all of memory.
 	 */
+#ifdef CONFIG_EFI_STUB
+	pushq	%rsi
+	mov	%rcx, %rdi
+	mov	%rdx, %rsi
+	call	efi_main
+	popq	%rsi
+	cmpq	$0,%rax
+	je	preferred_addr
+	movq	%rax,%rsi
+	call	1f
+1:
+	popq	%rax
+	subq	$1b, %rax
+	subq	BP_pref_address(%rsi), %rax
+	add	BP_code32_start(%esi), %eax
+	leaq	preferred_addr(%rax), %rax
+	jmp	*%rax
+
+preferred_addr:
+#endif
 
 	/* Setup data segments. */
 	xorl	%eax, %eax

arch/x86/boot/compressed/string.c

 #include "misc.h"
+
+int memcmp(const void *s1, const void *s2, size_t len)
+{
+	u8 diff;
+	asm("repe; cmpsb; setnz %0"
+	    : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
+	return diff;
+}
+
 #include "../string.c"

arch/x86/boot/header.S

@@ -45,6 +45,11 @@ SYSSEG		= 0x1000		/* historical load address >> 4 */
 
 	.global bootsect_start
 bootsect_start:
+#ifdef CONFIG_EFI_STUB
+	# "MZ", MS-DOS header
+	.byte 0x4d
+	.byte 0x5a
+#endif
 
 	# Normalize the start address
 	ljmp	$BOOTSEG, $start2
@@ -79,6 +84,14 @@ bs_die:
 	# invoke the BIOS reset code...
 	ljmp	$0xf000,$0xfff0
 
+#ifdef CONFIG_EFI_STUB
+	.org	0x3c
+	#
+	# Offset to the PE header.
+	#
+	.long	pe_header
+#endif /* CONFIG_EFI_STUB */
+
 	.section ".bsdata", "a"
 bugger_off_msg:
 	.ascii	"Direct booting from floppy is no longer supported.\r\n"
@@ -87,6 +100,141 @@ bugger_off_msg:
 	.ascii	"Remove disk and press any key to reboot . . .\r\n"
 	.byte	0
 
+#ifdef CONFIG_EFI_STUB
+pe_header:
+	.ascii	"PE"
+	.word 	0
+
+coff_header:
+#ifdef CONFIG_X86_32
+	.word	0x14c				# i386
+#else
+	.word	0x8664				# x86-64
+#endif
+	.word	2				# nr_sections
+	.long	0 				# TimeDateStamp
+	.long	0				# PointerToSymbolTable
+	.long	1				# NumberOfSymbols
+	.word	section_table - optional_header	# SizeOfOptionalHeader
+#ifdef CONFIG_X86_32
+	.word	0x306				# Characteristics.
+						# IMAGE_FILE_32BIT_MACHINE |
+						# IMAGE_FILE_DEBUG_STRIPPED |
+						# IMAGE_FILE_EXECUTABLE_IMAGE |
+						# IMAGE_FILE_LINE_NUMS_STRIPPED
+#else
+	.word	0x206				# Characteristics
+						# IMAGE_FILE_DEBUG_STRIPPED |
+						# IMAGE_FILE_EXECUTABLE_IMAGE |
+						# IMAGE_FILE_LINE_NUMS_STRIPPED
+#endif
+
+optional_header:
+#ifdef CONFIG_X86_32
+	.word	0x10b				# PE32 format
+#else
+	.word	0x20b 				# PE32+ format
+#endif
+	.byte	0x02				# MajorLinkerVersion
+	.byte	0x14				# MinorLinkerVersion
+
+	# Filled in by build.c
+	.long	0				# SizeOfCode
+
+	.long	0				# SizeOfInitializedData
+	.long	0				# SizeOfUninitializedData
+
+	# Filled in by build.c
+	.long	0x0000				# AddressOfEntryPoint
+
+	.long	0x0000				# BaseOfCode
+#ifdef CONFIG_X86_32
+	.long	0				# data
+#endif
+
+extra_header_fields:
+#ifdef CONFIG_X86_32
+	.long	0				# ImageBase
+#else
+	.quad	0				# ImageBase
+#endif
+	.long	0x1000				# SectionAlignment
+	.long	0x200				# FileAlignment
+	.word	0				# MajorOperatingSystemVersion
+	.word	0				# MinorOperatingSystemVersion
+	.word	0				# MajorImageVersion
+	.word	0				# MinorImageVersion
+	.word	0				# MajorSubsystemVersion
+	.word	0				# MinorSubsystemVersion
+	.long	0				# Win32VersionValue
+
+	#
+	# The size of the bzImage is written in tools/build.c
+	#
+	.long	0				# SizeOfImage
+
+	.long	0x200				# SizeOfHeaders
+	.long	0				# CheckSum
+	.word	0xa				# Subsystem (EFI application)
+	.word	0				# DllCharacteristics
+#ifdef CONFIG_X86_32
+	.long	0				# SizeOfStackReserve
+	.long	0				# SizeOfStackCommit
+	.long	0				# SizeOfHeapReserve
+	.long	0				# SizeOfHeapCommit
+#else
+	.quad	0				# SizeOfStackReserve
+	.quad	0				# SizeOfStackCommit
+	.quad	0				# SizeOfHeapReserve
+	.quad	0				# SizeOfHeapCommit
+#endif
+	.long	0				# LoaderFlags
+	.long	0x1				# NumberOfRvaAndSizes
+
+	.quad	0				# ExportTable
+	.quad	0				# ImportTable
+	.quad	0				# ResourceTable
+	.quad	0				# ExceptionTable
+	.quad	0				# CertificationTable
+	.quad	0				# BaseRelocationTable
+
+	# Section table
+section_table:
+	.ascii	".text"
+	.byte	0
+	.byte	0
+	.byte	0
+	.long	0
+	.long	0x0				# startup_{32,64}
+	.long	0				# Size of initialized data
+						# on disk
+	.long	0x0				# startup_{32,64}
+	.long	0				# PointerToRelocations
+	.long	0				# PointerToLineNumbers
+	.word	0				# NumberOfRelocations
+	.word	0				# NumberOfLineNumbers
+	.long	0x60500020			# Characteristics (section flags)
+
+	#
+	# The EFI application loader requires a relocation section
+	# because EFI applications are relocatable and not having
+	# this section seems to confuse it. But since we don't need
+	# the loader to fixup any relocs for us just fill it with a
+	# single dummy reloc.
+	#
+	.ascii	".reloc"
+	.byte	0
+	.byte	0
+	.long	reloc_end - reloc_start
+	.long	reloc_start
+	.long	reloc_end - reloc_start		# SizeOfRawData
+	.long	reloc_start			# PointerToRawData
+	.long	0				# PointerToRelocations
+	.long	0				# PointerToLineNumbers
+	.word	0				# NumberOfRelocations
+	.word	0				# NumberOfLineNumbers
+	.long	0x42100040			# Characteristics (section flags)
+#endif /* CONFIG_EFI_STUB */
 
 	# Kernel attributes; used by setup.  This is part 1 of the
 	# header, from the old boot sector.
@@ -318,3 +466,13 @@ die:
 setup_corrupt:
 	.byte	7
 	.string	"No setup signature found...\n"
+
+	.data
+dummy:	.long	0
+
+	.section .reloc
+reloc_start:
+	.long	dummy - reloc_start
+	.long	10
+	.word	0
+reloc_end:

arch/x86/boot/string.c

@@ -111,3 +111,38 @@ unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int bas
 
 	return result;
 }
+
+/**
+ * strlen - Find the length of a string
+ * @s: The string to be sized
+ */
+size_t strlen(const char *s)
+{
+	const char *sc;
+
+	for (sc = s; *sc != '\0'; ++sc)
+		/* nothing */;
+	return sc - s;
+}
+
+/**
+ * strstr - Find the first substring in a %NUL terminated string
+ * @s1: The string to be searched
+ * @s2: The string to search for
+ */
+char *strstr(const char *s1, const char *s2)
+{
+	size_t l1, l2;
+
+	l2 = strlen(s2);
+	if (!l2)
+		return (char *)s1;
+	l1 = strlen(s1);
+	while (l1 >= l2) {
+		l1--;
+		if (!memcmp(s1, s2, l2))
+			return (char *)s1;
+		s1++;
+	}
+	return NULL;
+}

arch/x86/boot/tools/build.c

@@ -135,6 +135,9 @@ static void usage(void)
 
 int main(int argc, char ** argv)
 {
+#ifdef CONFIG_EFI_STUB
+	unsigned int file_sz, pe_header;
+#endif
 	unsigned int i, sz, setup_sectors;
 	int c;
 	u32 sys_size;
@@ -194,6 +197,42 @@ int main(int argc, char ** argv)
 	buf[0x1f6] = sys_size >> 16;
 	buf[0x1f7] = sys_size >> 24;
 
+#ifdef CONFIG_EFI_STUB
+	file_sz = sz + i + ((sys_size * 16) - sz);
+
+	pe_header = *(unsigned int *)&buf[0x3c];
+
+	/* Size of code */
+	*(unsigned int *)&buf[pe_header + 0x1c] = file_sz;
+
+	/* Size of image */
+	*(unsigned int *)&buf[pe_header + 0x50] = file_sz;
+
+#ifdef CONFIG_X86_32
+	/* Address of entry point */
+	*(unsigned int *)&buf[pe_header + 0x28] = i;
+
+	/* .text size */
+	*(unsigned int *)&buf[pe_header + 0xb0] = file_sz;
+
+	/* .text size of initialised data */
+	*(unsigned int *)&buf[pe_header + 0xb8] = file_sz;
+#else
+	/*
+	 * Address of entry point. startup_32 is at the beginning and
+	 * the 64-bit entry point (startup_64) is always 512 bytes
+	 * after.
+	 */
+	*(unsigned int *)&buf[pe_header + 0x28] = i + 512;
+
+	/* .text size */
+	*(unsigned int *)&buf[pe_header + 0xc0] = file_sz;
+
+	/* .text size of initialised data */
+	*(unsigned int *)&buf[pe_header + 0xc8] = file_sz;
+#endif /* CONFIG_X86_32 */
+#endif /* CONFIG_EFI_STUB */
+
 	crc = partial_crc32(buf, i, crc);
 	if (fwrite(buf, 1, i, stdout) != i)
 		die("Writing setup failed");

arch/x86/include/asm/bootparam.h

@@ -64,6 +64,8 @@ struct setup_header {
 	__u32	payload_offset;
 	__u32	payload_length;
 	__u64	setup_data;
+	__u64	pref_address;
+	__u32	init_size;
 } __attribute__((packed));
 
 struct sys_desc_table {

arch/x86/include/asm/efi.h

@@ -3,6 +3,8 @@
 
 #ifdef CONFIG_X86_32
 
+#define EFI_LOADER_SIGNATURE	"EL32"
+
 extern unsigned long asmlinkage efi_call_phys(void *, ...);
 
 #define efi_call_phys0(f)		efi_call_phys(f)
@@ -37,6 +39,8 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...);
 
 #else /* !CONFIG_X86_32 */
 
+#define EFI_LOADER_SIGNATURE	"EL64"
+
 extern u64 efi_call0(void *fp);
 extern u64 efi_call1(void *fp, u64 arg1);
 extern u64 efi_call2(void *fp, u64 arg1, u64 arg2);

arch/x86/kernel/asm-offsets.c

@@ -67,4 +67,6 @@ void common(void) {
 	OFFSET(BP_hardware_subarch, boot_params, hdr.hardware_subarch);
 	OFFSET(BP_version, boot_params, hdr.version);
 	OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment);
+	OFFSET(BP_pref_address, boot_params, hdr.pref_address);
+	OFFSET(BP_code32_start, boot_params, hdr.code32_start);
 }

arch/x86/kernel/setup.c

@@ -749,12 +749,7 @@ void __init setup_arch(char **cmdline_p)
 #endif
 #ifdef CONFIG_EFI
 	if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
-#ifdef CONFIG_X86_32
-		     "EL32",
-#else
-		     "EL64",
-#endif
-	 4)) {
+		     EFI_LOADER_SIGNATURE, 4)) {
 		efi_enabled = 1;
 		efi_memblock_x86_reserve_range();
 	}

include/linux/efi.h

@@ -109,6 +109,14 @@ typedef struct {
 	u32 imagesize;
 } efi_capsule_header_t;
 
+/*
+ * Allocation types for calls to boottime->allocate_pages.
+ */
+#define EFI_ALLOCATE_ANY_PAGES		0
+#define EFI_ALLOCATE_MAX_ADDRESS	1
+#define EFI_ALLOCATE_ADDRESS		2
+#define EFI_MAX_ALLOCATE_TYPE		3
+
 typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg);
 
 /*
@@ -138,6 +146,57 @@ typedef struct {
 	u8 sets_to_zero;
 } efi_time_cap_t;
 
+/*
+ * EFI Boot Services table
+ */
+typedef struct {
+	efi_table_hdr_t hdr;
+	void *raise_tpl;
+	void *restore_tpl;
+	void *allocate_pages;
+	void *free_pages;
+	void *get_memory_map;
+	void *allocate_pool;
+	void *free_pool;
+	void *create_event;
+	void *set_timer;
+	void *wait_for_event;
+	void *signal_event;
+	void *close_event;
+	void *check_event;
+	void *install_protocol_interface;
+	void *reinstall_protocol_interface;
+	void *uninstall_protocol_interface;
+	void *handle_protocol;
+	void *__reserved;
+	void *register_protocol_notify;
+	void *locate_handle;
+	void *locate_device_path;
+	void *install_configuration_table;
+	void *load_image;
+	void *start_image;
+	void *exit;
+	void *unload_image;
+	void *exit_boot_services;
+	void *get_next_monotonic_count;
+	void *stall;
+	void *set_watchdog_timer;
+	void *connect_controller;
+	void *disconnect_controller;
+	void *open_protocol;
+	void *close_protocol;
+	void *open_protocol_information;
+	void *protocols_per_handle;
+	void *locate_handle_buffer;
+	void *locate_protocol;
+	void *install_multiple_protocol_interfaces;
+	void *uninstall_multiple_protocol_interfaces;
+	void *calculate_crc32;
+	void *copy_mem;
+	void *set_mem;
+	void *create_event_ex;
+} efi_boot_services_t;
+
 /*
  * Types and defines for EFI ResetSystem
  */
@@ -236,6 +295,24 @@ typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules,
 #define LINUX_EFI_CRASH_GUID \
     EFI_GUID(  0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0 )
 
+#define LOADED_IMAGE_PROTOCOL_GUID \
+    EFI_GUID(  0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
+
+#define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \
+    EFI_GUID(  0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a )
+
+#define EFI_UGA_PROTOCOL_GUID \
+    EFI_GUID(  0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39 )
+
+#define EFI_PCI_IO_PROTOCOL_GUID \
+    EFI_GUID(  0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x2, 0x9a )
+
+#define EFI_FILE_INFO_ID \
+    EFI_GUID(  0x9576e92, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
+
+#define EFI_FILE_SYSTEM_GUID \
+    EFI_GUID(  0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b )
+
 typedef struct {
 	efi_guid_t guid;
 	unsigned long table;
@@ -261,7 +338,7 @@ typedef struct {
 	unsigned long stderr_handle;
 	unsigned long stderr;
 	efi_runtime_services_t *runtime;
-	unsigned long boottime;
+	efi_boot_services_t *boottime;
 	unsigned long nr_tables;
 	unsigned long tables;
 } efi_system_table_t;
@@ -275,6 +352,56 @@ struct efi_memory_map {
 	unsigned long desc_size;
 };
 
+typedef struct {
+	u32 revision;
+	void *parent_handle;
+	efi_system_table_t *system_table;
+	void *device_handle;
+	void *file_path;
+	void *reserved;
+	u32 load_options_size;
+	void *load_options;
+	void *image_base;
+	__aligned_u64 image_size;
+	unsigned int image_code_type;
+	unsigned int image_data_type;
+	unsigned long unload;
+} efi_loaded_image_t;
+
+typedef struct {
+	u64 revision;
+	void *open_volume;
+} efi_file_io_interface_t;
+
+typedef struct {
+	u64 size;
+	u64 file_size;
+	u64 phys_size;
+	efi_time_t create_time;
+	efi_time_t last_access_time;
+	efi_time_t modification_time;
+	__aligned_u64 attribute;
+	efi_char16_t filename[1];
+} efi_file_info_t;
+
+typedef struct {
+	u64 revision;
+	void *open;
+	void *close;
+	void *delete;
+	void *read;
+	void *write;
+	void *get_position;
+	void *set_position;
+	void *get_info;
+	void *set_info;
+	void *flush;
+} efi_file_handle_t;
+
+#define EFI_FILE_MODE_READ	0x0000000000000001
+#define EFI_FILE_MODE_WRITE	0x0000000000000002
+#define EFI_FILE_MODE_CREATE	0x8000000000000000
+
 #define EFI_INVALID_TABLE_ADDR		(~0UL)
 
 /*
@@ -384,6 +511,13 @@ extern int __init efi_setup_pcdp_console(char *);
 #define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
 #define EFI_VARIABLE_RUNTIME_ACCESS     0x0000000000000004
 
+/*
+ * The type of search to perform when calling boottime->locate_handle
+ */
+#define EFI_LOCATE_ALL_HANDLES			0
+#define EFI_LOCATE_BY_REGISTER_NOTIFY		1
+#define EFI_LOCATE_BY_PROTOCOL			2
+
 /*
  * EFI Device Path information
  */