cregit-Linux how code gets into the kernel

Release 4.12 include/linux/efi.h

Directory: include/linux
#ifndef _LINUX_EFI_H

#define _LINUX_EFI_H

/*
 * Extensible Firmware Interface
 * Based on 'Extensible Firmware Interface Specification' version 0.9, April 30, 1999
 *
 * Copyright (C) 1999 VA Linux Systems
 * Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
 * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co.
 *      David Mosberger-Tang <davidm@hpl.hp.com>
 *      Stephane Eranian <eranian@hpl.hp.com>
 */
#include <linux/init.h>
#include <linux/string.h>
#include <linux/time.h>
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/rtc.h>
#include <linux/ioport.h>
#include <linux/pfn.h>
#include <linux/pstore.h>
#include <linux/range.h>
#include <linux/reboot.h>
#include <linux/uuid.h>
#include <linux/screen_info.h>

#include <asm/page.h>


#define EFI_SUCCESS		0

#define EFI_LOAD_ERROR          ( 1 | (1UL << (BITS_PER_LONG-1)))

#define EFI_INVALID_PARAMETER	( 2 | (1UL << (BITS_PER_LONG-1)))

#define EFI_UNSUPPORTED		( 3 | (1UL << (BITS_PER_LONG-1)))

#define EFI_BAD_BUFFER_SIZE     ( 4 | (1UL << (BITS_PER_LONG-1)))

#define EFI_BUFFER_TOO_SMALL	( 5 | (1UL << (BITS_PER_LONG-1)))

#define EFI_NOT_READY		( 6 | (1UL << (BITS_PER_LONG-1)))

#define EFI_DEVICE_ERROR	( 7 | (1UL << (BITS_PER_LONG-1)))

#define EFI_WRITE_PROTECTED	( 8 | (1UL << (BITS_PER_LONG-1)))

#define EFI_OUT_OF_RESOURCES	( 9 | (1UL << (BITS_PER_LONG-1)))

#define EFI_NOT_FOUND		(14 | (1UL << (BITS_PER_LONG-1)))

#define EFI_ABORTED		(21 | (1UL << (BITS_PER_LONG-1)))

#define EFI_SECURITY_VIOLATION	(26 | (1UL << (BITS_PER_LONG-1)))


typedef unsigned long efi_status_t;

typedef u8 efi_bool_t;

typedef u16 efi_char16_t;		
/* UNICODE character */

typedef u64 efi_physical_addr_t;

typedef void *efi_handle_t;


typedef uuid_le efi_guid_t;


#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
	UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)

/*
 * Generic EFI table header
 */
typedef	struct {
	
u64 signature;
	
u32 revision;
	
u32 headersize;
	
u32 crc32;
	
u32 reserved;

} efi_table_hdr_t;

/*
 * Memory map descriptor:
 */

/* Memory types: */

#define EFI_RESERVED_TYPE		 0

#define EFI_LOADER_CODE			 1

#define EFI_LOADER_DATA			 2

#define EFI_BOOT_SERVICES_CODE		 3

#define EFI_BOOT_SERVICES_DATA		 4

#define EFI_RUNTIME_SERVICES_CODE	 5

#define EFI_RUNTIME_SERVICES_DATA	 6

#define EFI_CONVENTIONAL_MEMORY		 7

#define EFI_UNUSABLE_MEMORY		 8

#define EFI_ACPI_RECLAIM_MEMORY		 9

#define EFI_ACPI_MEMORY_NVS		10

#define EFI_MEMORY_MAPPED_IO		11

#define EFI_MEMORY_MAPPED_IO_PORT_SPACE	12

#define EFI_PAL_CODE			13

#define EFI_PERSISTENT_MEMORY		14

#define EFI_MAX_MEMORY_TYPE		15

/* Attribute values: */

#define EFI_MEMORY_UC		((u64)0x0000000000000001ULL)	
/* uncached */

#define EFI_MEMORY_WC		((u64)0x0000000000000002ULL)	
/* write-coalescing */

#define EFI_MEMORY_WT		((u64)0x0000000000000004ULL)	
/* write-through */

#define EFI_MEMORY_WB		((u64)0x0000000000000008ULL)	
/* write-back */

#define EFI_MEMORY_UCE		((u64)0x0000000000000010ULL)	
/* uncached, exported */

#define EFI_MEMORY_WP		((u64)0x0000000000001000ULL)	
/* write-protect */

#define EFI_MEMORY_RP		((u64)0x0000000000002000ULL)	
/* read-protect */

#define EFI_MEMORY_XP		((u64)0x0000000000004000ULL)	
/* execute-protect */

#define EFI_MEMORY_NV		((u64)0x0000000000008000ULL)	
/* non-volatile */

#define EFI_MEMORY_MORE_RELIABLE \
				((u64)0x0000000000010000ULL)	/* higher reliability */

#define EFI_MEMORY_RO		((u64)0x0000000000020000ULL)	
/* read-only */

#define EFI_MEMORY_RUNTIME	((u64)0x8000000000000000ULL)	
/* range requires runtime mapping */

#define EFI_MEMORY_DESCRIPTOR_VERSION	1


#define EFI_PAGE_SHIFT		12

#define EFI_PAGE_SIZE		(1UL << EFI_PAGE_SHIFT)

#define EFI_PAGES_MAX		(U64_MAX >> EFI_PAGE_SHIFT)

typedef struct {
	
u32 type;
	
u32 pad;
	
u64 phys_addr;
	
u64 virt_addr;
	
u64 num_pages;
	
u64 attribute;

} efi_memory_desc_t;

typedef struct {
	
efi_guid_t guid;
	
u32 headersize;
	
u32 flags;
	
u32 imagesize;

} efi_capsule_header_t;


struct efi_boot_memmap {
	
efi_memory_desc_t	**map;
	
unsigned long		*map_size;
	
unsigned long		*desc_size;
	
u32			*desc_ver;
	
unsigned long		*key_ptr;
	
unsigned long		*buff_size;
};

/*
 * EFI capsule flags
 */

#define EFI_CAPSULE_PERSIST_ACROSS_RESET	0x00010000

#define EFI_CAPSULE_POPULATE_SYSTEM_TABLE	0x00020000

#define EFI_CAPSULE_INITIATE_RESET		0x00040000

/*
 * 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);

/*
 * Types and defines for Time Services
 */

#define EFI_TIME_ADJUST_DAYLIGHT 0x1

#define EFI_TIME_IN_DAYLIGHT     0x2

#define EFI_UNSPECIFIED_TIMEZONE 0x07ff

typedef struct {
	
u16 year;
	
u8 month;
	
u8 day;
	
u8 hour;
	
u8 minute;
	
u8 second;
	
u8 pad1;
	
u32 nanosecond;
	
s16 timezone;
	
u8 daylight;
	
u8 pad2;

} efi_time_t;

typedef struct {
	
u32 resolution;
	
u32 accuracy;
	
u8 sets_to_zero;

} efi_time_cap_t;

typedef struct {
	
efi_table_hdr_t hdr;
	
u32 raise_tpl;
	
u32 restore_tpl;
	
u32 allocate_pages;
	
u32 free_pages;
	
u32 get_memory_map;
	
u32 allocate_pool;
	
u32 free_pool;
	
u32 create_event;
	
u32 set_timer;
	
u32 wait_for_event;
	
u32 signal_event;
	
u32 close_event;
	
u32 check_event;
	
u32 install_protocol_interface;
	
u32 reinstall_protocol_interface;
	
u32 uninstall_protocol_interface;
	
u32 handle_protocol;
	
u32 __reserved;
	
u32 register_protocol_notify;
	
u32 locate_handle;
	
u32 locate_device_path;
	
u32 install_configuration_table;
	
u32 load_image;
	
u32 start_image;
	
u32 exit;
	
u32 unload_image;
	
u32 exit_boot_services;
	
u32 get_next_monotonic_count;
	
u32 stall;
	
u32 set_watchdog_timer;
	
u32 connect_controller;
	
u32 disconnect_controller;
	
u32 open_protocol;
	
u32 close_protocol;
	
u32 open_protocol_information;
	
u32 protocols_per_handle;
	
u32 locate_handle_buffer;
	
u32 locate_protocol;
	
u32 install_multiple_protocol_interfaces;
	
u32 uninstall_multiple_protocol_interfaces;
	
u32 calculate_crc32;
	
u32 copy_mem;
	
u32 set_mem;
	
u32 create_event_ex;

} __packed efi_boot_services_32_t;

typedef struct {
	
efi_table_hdr_t hdr;
	
u64 raise_tpl;
	
u64 restore_tpl;
	
u64 allocate_pages;
	
u64 free_pages;
	
u64 get_memory_map;
	
u64 allocate_pool;
	
u64 free_pool;
	
u64 create_event;
	
u64 set_timer;
	
u64 wait_for_event;
	
u64 signal_event;
	
u64 close_event;
	
u64 check_event;
	
u64 install_protocol_interface;
	
u64 reinstall_protocol_interface;
	
u64 uninstall_protocol_interface;
	
u64 handle_protocol;
	
u64 __reserved;
	
u64 register_protocol_notify;
	
u64 locate_handle;
	
u64 locate_device_path;
	
u64 install_configuration_table;
	
u64 load_image;
	
u64 start_image;
	
u64 exit;
	
u64 unload_image;
	
u64 exit_boot_services;
	
u64 get_next_monotonic_count;
	
u64 stall;
	
u64 set_watchdog_timer;
	
u64 connect_controller;
	
u64 disconnect_controller;
	
u64 open_protocol;
	
u64 close_protocol;
	
u64 open_protocol_information;
	
u64 protocols_per_handle;
	
u64 locate_handle_buffer;
	
u64 locate_protocol;
	
u64 install_multiple_protocol_interfaces;
	
u64 uninstall_multiple_protocol_interfaces;
	
u64 calculate_crc32;
	
u64 copy_mem;
	
u64 set_mem;
	
u64 create_event_ex;

} __packed efi_boot_services_64_t;

/*
 * EFI Boot Services table
 */
typedef struct {
	
efi_table_hdr_t hdr;
	
void *raise_tpl;
	
void *restore_tpl;
	
efi_status_t (*allocate_pages)(int, int, unsigned long,
				       efi_physical_addr_t *);
	
efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long);
	
efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *,
				       unsigned long *, u32 *);
	
efi_status_t (*allocate_pool)(int, unsigned long, void **);
	
efi_status_t (*free_pool)(void *);
	
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;
	
efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **);
	
void *__reserved;
	
void *register_protocol_notify;
	
efi_status_t (*locate_handle)(int, efi_guid_t *, void *,
				      unsigned long *, efi_handle_t *);
	
void *locate_device_path;
	
efi_status_t (*install_configuration_table)(efi_guid_t *, void *);
	
void *load_image;
	
void *start_image;
	
void *exit;
	
void *unload_image;
	
efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long);
	
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;
	
efi_status_t (*locate_protocol)(efi_guid_t *, void *, void **);
	
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;

typedef enum {
	
EfiPciIoWidthUint8,
	
EfiPciIoWidthUint16,
	
EfiPciIoWidthUint32,
	
EfiPciIoWidthUint64,
	
EfiPciIoWidthFifoUint8,
	
EfiPciIoWidthFifoUint16,
	
EfiPciIoWidthFifoUint32,
	
EfiPciIoWidthFifoUint64,
	
EfiPciIoWidthFillUint8,
	
EfiPciIoWidthFillUint16,
	
EfiPciIoWidthFillUint32,
	
EfiPciIoWidthFillUint64,
	
EfiPciIoWidthMaximum

} EFI_PCI_IO_PROTOCOL_WIDTH;

typedef enum {
	
EfiPciIoAttributeOperationGet,
	
EfiPciIoAttributeOperationSet,
	
EfiPciIoAttributeOperationEnable,
	
EfiPciIoAttributeOperationDisable,
	
EfiPciIoAttributeOperationSupported,
    
EfiPciIoAttributeOperationMaximum

} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;

typedef struct {
	
u32 read;
	
u32 write;

} efi_pci_io_protocol_access_32_t;

typedef struct {
	
u64 read;
	
u64 write;

} efi_pci_io_protocol_access_64_t;

typedef struct {
	
void *read;
	
void *write;

} efi_pci_io_protocol_access_t;

typedef struct {
	
u32 poll_mem;
	
u32 poll_io;
	
efi_pci_io_protocol_access_32_t mem;
	
efi_pci_io_protocol_access_32_t io;
	
efi_pci_io_protocol_access_32_t pci;
	
u32 copy_mem;
	
u32 map;
	
u32 unmap;
	
u32 allocate_buffer;
	
u32 free_buffer;
	
u32 flush;
	
u32 get_location;
	
u32 attributes;
	
u32 get_bar_attributes;
	
u32 set_bar_attributes;
	
uint64_t romsize;
	
void *romimage;

} efi_pci_io_protocol_32;

typedef struct {
	
u64 poll_mem;
	
u64 poll_io;
	
efi_pci_io_protocol_access_64_t mem;
	
efi_pci_io_protocol_access_64_t io;
	
efi_pci_io_protocol_access_64_t pci;
	
u64 copy_mem;
	
u64 map;
	
u64 unmap;
	
u64 allocate_buffer;
	
u64 free_buffer;
	
u64 flush;
	
u64 get_location;
	
u64 attributes;
	
u64 get_bar_attributes;
	
u64 set_bar_attributes;
	
uint64_t romsize;
	
void *romimage;

} efi_pci_io_protocol_64;

typedef struct {
	
void *poll_mem;
	
void *poll_io;
	
efi_pci_io_protocol_access_t mem;
	
efi_pci_io_protocol_access_t io;
	
efi_pci_io_protocol_access_t pci;
	
void *copy_mem;
	
void *map;
	
void *unmap;
	
void *allocate_buffer;
	
void *free_buffer;
	
void *flush;
	
void *get_location;
	
void *attributes;
	
void *get_bar_attributes;
	
void *set_bar_attributes;
	
uint64_t romsize;
	
void *romimage;

} efi_pci_io_protocol;


#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001

#define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002

#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004

#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008

#define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010

#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020

#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040

#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080

#define EFI_PCI_IO_ATTRIBUTE_IO 0x0100

#define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200

#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400

#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800

#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000

#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000

#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000

#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000

#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000

#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000

#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000

typedef struct {
	
u32 version;
	
u32 get;
	
u32 set;
	
u32 del;
	
u32 get_all;

} apple_properties_protocol_32_t;

typedef struct {
	
u64 version;
	
u64 get;
	
u64 set;
	
u64 del;
	
u64 get_all;

} apple_properties_protocol_64_t;

/*
 * Types and defines for EFI ResetSystem
 */

#define EFI_RESET_COLD 0

#define EFI_RESET_WARM 1

#define EFI_RESET_SHUTDOWN 2

/*
 * EFI Runtime Services table
 */

#define EFI_RUNTIME_SERVICES_SIGNATURE ((u64)0x5652453544e5552ULL)

#define EFI_RUNTIME_SERVICES_REVISION  0x00010000

typedef struct {
	
efi_table_hdr_t hdr;
	
u32 get_time;
	
u32 set_time;
	
u32 get_wakeup_time;
	
u32 set_wakeup_time;
	
u32 set_virtual_address_map;
	
u32 convert_pointer;
	
u32 get_variable;
	
u32 get_next_variable;
	
u32 set_variable;
	
u32 get_next_high_mono_count;
	
u32 reset_system;
	
u32 update_capsule;
	
u32 query_capsule_caps;
	
u32 query_variable_info;

} efi_runtime_services_32_t;

typedef struct {
	
efi_table_hdr_t hdr;
	
u64 get_time;
	
u64 set_time;
	
u64 get_wakeup_time;
	
u64 set_wakeup_time;
	
u64 set_virtual_address_map;
	
u64 convert_pointer;
	
u64 get_variable;
	
u64 get_next_variable;
	
u64 set_variable;
	
u64 get_next_high_mono_count;
	
u64 reset_system;
	
u64 update_capsule;
	
u64 query_capsule_caps;
	
u64 query_variable_info;

} efi_runtime_services_64_t;


typedef efi_status_t efi_get_time_t (efi_time_t *tm, efi_time_cap_t *tc);

typedef efi_status_t efi_set_time_t (efi_time_t *tm);

typedef efi_status_t efi_get_wakeup_time_t (efi_bool_t *enabled, efi_bool_t *pending,
					    efi_time_t *tm);

typedef efi_status_t efi_set_wakeup_time_t (efi_bool_t enabled, efi_time_t *tm);

typedef efi_status_t efi_get_variable_t (efi_char16_t *name, efi_guid_t *vendor, u32 *attr,
					 unsigned long *data_size, void *data);

typedef efi_status_t efi_get_next_variable_t (unsigned long *name_size, efi_char16_t *name,
					      efi_guid_t *vendor);

typedef efi_status_t efi_set_variable_t (efi_char16_t *name, efi_guid_t *vendor, 
					 u32 attr, unsigned long data_size,
					 void *data);

typedef efi_status_t efi_get_next_high_mono_count_t (u32 *count);

typedef void efi_reset_system_t (int reset_type, efi_status_t status,
				 unsigned long data_size, efi_char16_t *data);

typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_size,
						unsigned long descriptor_size,
						u32 descriptor_version,
						efi_memory_desc_t *virtual_map);

typedef efi_status_t efi_query_variable_info_t(u32 attr,
					       u64 *storage_space,
					       u64 *remaining_space,
					       u64 *max_variable_size);

typedef efi_status_t efi_update_capsule_t(efi_capsule_header_t **capsules,
					  unsigned long count,
					  unsigned long sg_list);

typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules,
					      unsigned long count,
					      u64 *max_size,
					      int *reset_type);

typedef efi_status_t efi_query_variable_store_t(u32 attributes,
						unsigned long size,
						bool nonblocking);

typedef struct {
	
efi_table_hdr_t			hdr;
	
efi_get_time_t			*get_time;
	
efi_set_time_t			*set_time;
	
efi_get_wakeup_time_t		*get_wakeup_time;
	
efi_set_wakeup_time_t		*set_wakeup_time;
	
efi_set_virtual_address_map_t	*set_virtual_address_map;
	
void				*convert_pointer;
	
efi_get_variable_t		*get_variable;
	
efi_get_next_variable_t		*get_next_variable;
	
efi_set_variable_t		*set_variable;
	
efi_get_next_high_mono_count_t	*get_next_high_mono_count;
	
efi_reset_system_t		*reset_system;
	
efi_update_capsule_t		*update_capsule;
	
efi_query_capsule_caps_t	*query_capsule_caps;
	
efi_query_variable_info_t	*query_variable_info;

} efi_runtime_services_t;

void efi_native_runtime_setup(void);

/*
 * EFI Configuration Table and GUID definitions
 *
 * These are all defined in a single line to make them easier to
 * grep for and to see them at a glance - while still having a
 * similar structure to the definitions in the spec.
 *
 * Here's how they are structured:
 *
 * GUID: 12345678-1234-1234-1234-123456789012
 * Spec:
 *      #define EFI_SOME_PROTOCOL_GUID \
 *        {0x12345678,0x1234,0x1234,\
 *          {0x12,0x34,0x12,0x34,0x56,0x78,0x90,0x12}}
 * Here:
 *      #define SOME_PROTOCOL_GUID              EFI_GUID(0x12345678, 0x1234, 0x1234,  0x12, 0x34, 0x12, 0x34, 0x56, 0x78, 0x90, 0x12)
 *                                      ^ tabs                                      ^extra space
 *
 * Note that the 'extra space' separates the values at the same place
 * where the UEFI SPEC breaks the line.
 */

#define NULL_GUID				EFI_GUID(0x00000000, 0x0000, 0x0000,  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)

#define MPS_TABLE_GUID				EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3,  0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

#define ACPI_TABLE_GUID				EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3,  0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

#define ACPI_20_TABLE_GUID			EFI_GUID(0x8868e871, 0xe4f1, 0x11d3,  0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81)

#define SMBIOS_TABLE_GUID			EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3,  0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

#define SMBIOS3_TABLE_GUID			EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c,  0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94)

#define SAL_SYSTEM_TABLE_GUID			EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3,  0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

#define HCDP_TABLE_GUID				EFI_GUID(0xf951938d, 0x620b, 0x42ef,  0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98)

#define UGA_IO_PROTOCOL_GUID			EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b,  0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2)

#define EFI_GLOBAL_VARIABLE_GUID		EFI_GUID(0x8be4df61, 0x93ca, 0x11d2,  0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)

#define UV_SYSTEM_TABLE_GUID			EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd,  0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93)

#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, 0x02, 0x9a)

#define EFI_FILE_INFO_ID			EFI_GUID(0x09576e92, 0x6d3f, 0x11d2,  0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)

#define EFI_SYSTEM_RESOURCE_TABLE_GUID		EFI_GUID(0xb122a263, 0x3661, 0x4f68,  0x99, 0x29, 0x78, 0xf8, 0xb0, 0xd6, 0x21, 0x80)

#define EFI_FILE_SYSTEM_GUID			EFI_GUID(0x964e5b22, 0x6459, 0x11d2,  0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)

#define DEVICE_TREE_GUID			EFI_GUID(0xb1b621d5, 0xf19c, 0x41a5,  0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0)

#define EFI_PROPERTIES_TABLE_GUID		EFI_GUID(0x880aaca3, 0x4adc, 0x4a04,  0x90, 0x79, 0xb7, 0x47, 0x34, 0x08, 0x25, 0xe5)

#define EFI_RNG_PROTOCOL_GUID			EFI_GUID(0x3152bca5, 0xeade, 0x433d,  0x86, 0x2e, 0xc0, 0x1c, 0xdc, 0x29, 0x1f, 0x44)

#define EFI_RNG_ALGORITHM_RAW			EFI_GUID(0xe43176d7, 0xb6e8, 0x4827,  0xb7, 0x84, 0x7f, 0xfd, 0xc4, 0xb6, 0x85, 0x61)

#define EFI_MEMORY_ATTRIBUTES_TABLE_GUID	EFI_GUID(0xdcfa911d, 0x26eb, 0x469f,  0xa2, 0x20, 0x38, 0xb7, 0xdc, 0x46, 0x12, 0x20)

#define EFI_CONSOLE_OUT_DEVICE_GUID		EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4,  0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)

#define APPLE_PROPERTIES_PROTOCOL_GUID		EFI_GUID(0x91bd12fe, 0xf6c3, 0x44fb,  0xa5, 0xb7, 0x51, 0x22, 0xab, 0x30, 0x3a, 0xe0)


#define EFI_IMAGE_SECURITY_DATABASE_GUID	EFI_GUID(0xd719b2cb, 0x3d3a, 0x4596,  0xa3, 0xbc, 0xda, 0xd0, 0x0e, 0x67, 0x65, 0x6f)

#define EFI_SHIM_LOCK_GUID			EFI_GUID(0x605dab50, 0xe046, 0x4300,  0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23)

/*
 * This GUID is used to pass to the kernel proper the struct screen_info
 * structure that was populated by the stub based on the GOP protocol instance
 * associated with ConOut
 */

#define LINUX_EFI_ARM_SCREEN_INFO_TABLE_GUID	EFI_GUID(0xe03fc20a, 0x85dc, 0x406e,  0xb9, 0x0e, 0x4a, 0xb5, 0x02, 0x37, 0x1d, 0x95)

#define LINUX_EFI_LOADER_ENTRY_GUID		EFI_GUID(0x4a67b082, 0x0a4c, 0x41cf,  0xb6, 0xc7, 0x44, 0x0b, 0x29, 0xbb, 0x8c, 0x4f)

#define LINUX_EFI_RANDOM_SEED_TABLE_GUID	EFI_GUID(0x1ce1e5bc, 0x7ceb, 0x42f2,  0x81, 0xe5, 0x8a, 0xad, 0xf1, 0x80, 0xf5, 0x7b)

typedef struct {
	
efi_guid_t guid;
	
u64 table;

} efi_config_table_64_t;

typedef struct {
	
efi_guid_t guid;
	
u32 table;

} efi_config_table_32_t;

typedef struct {
	
efi_guid_t guid;
	
unsigned long table;

} efi_config_table_t;

typedef struct {
	
efi_guid_t guid;
	
const char *name;
	
unsigned long *ptr;

} efi_config_table_type_t;


#define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)


#define EFI_2_30_SYSTEM_TABLE_REVISION  ((2 << 16) | (30))

#define EFI_2_20_SYSTEM_TABLE_REVISION  ((2 << 16) | (20))

#define EFI_2_10_SYSTEM_TABLE_REVISION  ((2 << 16) | (10))

#define EFI_2_00_SYSTEM_TABLE_REVISION  ((2 << 16) | (00))

#define EFI_1_10_SYSTEM_TABLE_REVISION  ((1 << 16) | (10))

#define EFI_1_02_SYSTEM_TABLE_REVISION  ((1 << 16) | (02))

typedef struct {
	
efi_table_hdr_t hdr;
	
u64 fw_vendor;	/* physical addr of CHAR16 vendor string */
	
u32 fw_revision;
	
u32 __pad1;
	
u64 con_in_handle;
	
u64 con_in;
	
u64 con_out_handle;
	
u64 con_out;
	
u64 stderr_handle;
	
u64 stderr;
	
u64 runtime;
	
u64 boottime;
	
u32 nr_tables;
	
u32 __pad2;
	
u64 tables;

} efi_system_table_64_t;

typedef struct {
	
efi_table_hdr_t hdr;
	
u32 fw_vendor;	/* physical addr of CHAR16 vendor string */
	
u32 fw_revision;
	
u32 con_in_handle;
	
u32 con_in;
	
u32 con_out_handle;
	
u32 con_out;
	
u32 stderr_handle;
	
u32 stderr;
	
u32 runtime;
	
u32 boottime;
	
u32 nr_tables;
	
u32 tables;

} efi_system_table_32_t;

typedef struct {
	
efi_table_hdr_t hdr;
	
unsigned long fw_vendor;	/* physical addr of CHAR16 vendor string */
	
u32 fw_revision;
	
unsigned long con_in_handle;
	
unsigned long con_in;
	
unsigned long con_out_handle;
	
unsigned long con_out;
	
unsigned long stderr_handle;
	
unsigned long stderr;
	
efi_runtime_services_t *runtime;
	
efi_boot_services_t *boottime;
	
unsigned long nr_tables;
	
unsigned long tables;

} efi_system_table_t;

/*
 * Architecture independent structure for describing a memory map for the
 * benefit of efi_memmap_init_early(), saving us the need to pass four
 * parameters.
 */

struct efi_memory_map_data {
	
phys_addr_t phys_map;
	
unsigned long size;
	
unsigned long desc_version;
	
unsigned long desc_size;
};


struct efi_memory_map {
	
phys_addr_t phys_map;
	
void *map;
	
void *map_end;
	
int nr_map;
	
unsigned long desc_version;
	
unsigned long desc_size;
	
bool late;
};


struct efi_mem_range {
	
struct range range;
	
u64 attribute;
};


struct efi_fdt_params {
	
u64 system_table;
	
u64 mmap;
	
u32 mmap_size;
	
u32 desc_size;
	
u32 desc_ver;
};

typedef struct {
	
u32 revision;
	
u32 parent_handle;
	
u32 system_table;
	
u32 device_handle;
	
u32 file_path;
	
u32 reserved;
	
u32 load_options_size;
	
u32 load_options;
	
u32 image_base;
	
__aligned_u64 image_size;
	
unsigned int image_code_type;
	
unsigned int image_data_type;
	
unsigned long unload;

} efi_loaded_image_32_t;

typedef struct {
	
u32 revision;
	
u64 parent_handle;
	
u64 system_table;
	
u64 device_handle;
	
u64 file_path;