include/efi.h - filogic/uboot - Gitiles

 /*
  * 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>
  *
  * From include/linux/efi.h in kernel 4.1 with some additions/subtractions
  */

 #ifndef _EFI_H
 #define _EFI_H

 #include <linux/string.h>
 #include <linux/types.h>

 struct efi_device_path;

 #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_SECURITY_VIOLATION	(26 | (1UL << (BITS_PER_LONG - 1)))

 typedef unsigned long efi_status_t;
 typedef u64 efi_physical_addr_t;
 typedef u64 efi_virtual_addr_t;
 typedef void *efi_handle_t;

 #define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
 	((efi_guid_t) \
 	{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, \
 		((a) >> 24) & 0xff, \
 		(b) & 0xff, ((b) >> 8) & 0xff, \
 		(c) & 0xff, ((c) >> 8) & 0xff, \
 		(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } })

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

 /* Enumeration of memory types introduced in UEFI */
 enum efi_mem_type {
 	EFI_RESERVED_MEMORY_TYPE,
 	/*
 	 * The code portions of a loaded application.
 	 * (Note that UEFI OS loaders are UEFI applications.)
 	 */
 	EFI_LOADER_CODE,
 	/*
 	 * The data portions of a loaded application and
 	 * the default data allocation type used by an application
 	 * to allocate pool memory.
 	 */
 	EFI_LOADER_DATA,
 	/* The code portions of a loaded Boot Services Driver */
 	EFI_BOOT_SERVICES_CODE,
 	/*
 	 * The data portions of a loaded Boot Serves Driver and
 	 * the default data allocation type used by a Boot Services
 	 * Driver to allocate pool memory.
 	 */
 	EFI_BOOT_SERVICES_DATA,
 	/* The code portions of a loaded Runtime Services Driver */
 	EFI_RUNTIME_SERVICES_CODE,
 	/*
 	 * The data portions of a loaded Runtime Services Driver and
 	 * the default data allocation type used by a Runtime Services
 	 * Driver to allocate pool memory.
 	 */
 	EFI_RUNTIME_SERVICES_DATA,
 	/* Free (unallocated) memory */
 	EFI_CONVENTIONAL_MEMORY,
 	/* Memory in which errors have been detected */
 	EFI_UNUSABLE_MEMORY,
 	/* Memory that holds the ACPI tables */
 	EFI_ACPI_RECLAIM_MEMORY,
 	/* Address space reserved for use by the firmware */
 	EFI_ACPI_MEMORY_NVS,
 	/*
 	 * Used by system firmware to request that a memory-mapped IO region
 	 * be mapped by the OS to a virtual address so it can be accessed by
 	 * EFI runtime services.
 	 */
 	EFI_MMAP_IO,
 	/*
 	 * System memory-mapped IO region that is used to translate
 	 * memory cycles to IO cycles by the processor.
 	 */
 	EFI_MMAP_IO_PORT,
 	/*
 	 * Address space reserved by the firmware for code that is
 	 * part of the processor.
 	 */
 	EFI_PAL_CODE,

 	EFI_MAX_MEMORY_TYPE,
 	EFI_TABLE_END,	/* For efi_build_mem_table() */
 };

 /* Attribute values */
 enum {
 	EFI_MEMORY_UC_SHIFT	= 0,	/* uncached */
 	EFI_MEMORY_WC_SHIFT	= 1,	/* write-coalescing */
 	EFI_MEMORY_WT_SHIFT	= 2,	/* write-through */
 	EFI_MEMORY_WB_SHIFT	= 3,	/* write-back */
 	EFI_MEMORY_UCE_SHIFT	= 4,	/* uncached, exported */
 	EFI_MEMORY_WP_SHIFT	= 12,	/* write-protect */
 	EFI_MEMORY_RP_SHIFT	= 13,	/* read-protect */
 	EFI_MEMORY_XP_SHIFT	= 14,	/* execute-protect */
 	EFI_MEMORY_RUNTIME_SHIFT = 63,	/* range requires runtime mapping */

 	EFI_MEMORY_RUNTIME = 1ULL << EFI_MEMORY_RUNTIME_SHIFT,
 	EFI_MEM_DESC_VERSION	= 1,
 };

 #define EFI_PAGE_SHIFT		12
 #define EFI_PAGE_SIZE		(1UL << EFI_PAGE_SHIFT)

 struct efi_mem_desc {
 	u32 type;
 	u32 reserved;
 	efi_physical_addr_t physical_start;
 	efi_virtual_addr_t virtual_start;
 	u64 num_pages;
 	u64 attribute;
 };

 /* 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

 /* Types and defines for Time Services */
 #define EFI_TIME_ADJUST_DAYLIGHT 0x1
 #define EFI_TIME_IN_DAYLIGHT     0x2
 #define EFI_UNSPECIFIED_TIMEZONE 0x07ff

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

 struct efi_time_cap {
 	u32 resolution;
 	u32 accuracy;
 	u8 sets_to_zero;
 };

 enum efi_locate_search_type {
 	all_handles,
 	by_register_notify,
 	by_protocol
 };

 struct efi_open_protocol_info_entry {
 	efi_handle_t agent_handle;
 	efi_handle_t controller_handle;
 	u32 attributes;
 	u32 open_count;
 };

 enum efi_entry_t {
 	EFIET_END,	/* Signals this is the last (empty) entry */
 	EFIET_MEMORY_MAP,

 	/* Number of entries */
 	EFIET_MEMORY_COUNT,
 };

 #define EFI_TABLE_VERSION	1

 /**
  * struct efi_info_hdr - Header for the EFI info table
  *
  * @version:	EFI_TABLE_VERSION
  * @hdr_size:	Size of this struct in bytes
  * @total_size:	Total size of this header plus following data
  * @spare:	Spare space for expansion
  */
 struct efi_info_hdr {
 	u32 version;
 	u32 hdr_size;
 	u32 total_size;
 	u32 spare[5];
 };

 /**
  * struct efi_entry_hdr - Header for a table entry
  *
  * @type:	enum eft_entry_t
  * @size	size of entry bytes excluding header and padding
  * @addr:	address of this entry (0 if it follows the header )
  * @link:	size of entry including header and padding
  * @spare1:	Spare space for expansion
  * @spare2:	Spare space for expansion
  */
 struct efi_entry_hdr {
 	u32 type;
 	u32 size;
 	u64 addr;
 	u32 link;
 	u32 spare1;
 	u64 spare2;
 };

 /**
  * struct efi_entry_memmap - a memory map table passed to U-Boot
  *
  * @version:	EFI's memory map table version
  * @desc_size:	EFI's size of each memory descriptor
  * @spare:	Spare space for expansion
  * @desc:	An array of descriptors, each @desc_size bytes apart
  */
 struct efi_entry_memmap {
 	u32 version;
 	u32 desc_size;
 	u64 spare;
 	struct efi_mem_desc desc[];
 };

 static inline struct efi_mem_desc *efi_get_next_mem_desc(
 		struct efi_entry_memmap *map, struct efi_mem_desc *desc)
 {
 	return (struct efi_mem_desc *)((ulong)desc + map->desc_size);
 }

 struct efi_priv {
 	efi_handle_t parent_image;
 	struct efi_device_path *device_path;
 	struct efi_system_table *sys_table;
 	struct efi_boot_services *boot;
 	struct efi_runtime_services *run;
 	bool use_pool_for_malloc;
 	unsigned long ram_base;
 	unsigned int image_data_type;
 	struct efi_info_hdr *info;
 	unsigned int info_size;
 	void *next_hdr;
 };

 /* Base address of the EFI image */
 extern char image_base[];

 /**
  * efi_get_sys_table() - Get access to the main EFI system table
  *
  * @return pointer to EFI system table
  */
 struct efi_system_table *efi_get_sys_table(void);

 /**
  * efi_get_ram_base() - Find the base of RAM
  *
  * This is used when U-Boot is built as an EFI application.
  *
  * @return the base of RAM as known to U-Boot
  */
 unsigned long efi_get_ram_base(void);

 /**
  * efi_init() - Set up ready for use of EFI boot services
  *
  * @priv:	Pointer to our private EFI structure to fill in
  * @banner:	Banner to display when starting
  * @image:	The image handle passed to efi_main()
  * @sys_table:	The EFI system table pointer passed to efi_main()
  */
 int efi_init(struct efi_priv *priv, const char *banner, efi_handle_t image,
 	     struct efi_system_table *sys_table);

 /**
  * efi_malloc() - Allocate some memory from EFI
  *
  * @priv:	Pointer to private EFI structure
  * @size:	Number of bytes to allocate
  * @retp:	Return EFI status result
  * @return pointer to memory allocated, or NULL on error
  */
 void *efi_malloc(struct efi_priv *priv, int size, efi_status_t *retp);

 /**
  * efi_free() - Free memory allocated from EFI
  *
  * @priv:	Pointer to private EFI structure
  * @ptr:	Pointer to memory to free
  */
 void efi_free(struct efi_priv *priv, void *ptr);

 /**
  * efi_puts() - Write out a string to the EFI console
  *
  * @priv:	Pointer to private EFI structure
  * @str:	String to write (note this is a ASCII, not unicode)
  */
 void efi_puts(struct efi_priv *priv, const char *str);

 /**
  * efi_putc() - Write out a character to the EFI console
  *
  * @priv:	Pointer to private EFI structure
  * @ch:		Character to write (note this is not unicode)
  */
 void efi_putc(struct efi_priv *priv, const char ch);

 /**
  * efi_info_get() - get an entry from an EFI table
  *
  * @type:	Entry type to search for
  * @datap:	Returns pointer to entry data
  * @sizep:	Returns pointer to entry size
  * @return 0 if OK, -ENODATA if there is no table, -ENOENT if there is no entry
  * of the requested type, -EPROTONOSUPPORT if the table has the wrong version
  */
 int efi_info_get(enum efi_entry_t type, void **datap, int *sizep);

 /**
  * efi_build_mem_table() - make a sorted copy of the memory table
  *
  * @map:	Pointer to EFI memory map table
  * @size:	Size of table in bytes
  * @skip_bs:	True to skip boot-time memory and merge it with conventional
  *		memory. This will significantly reduce the number of table
  *		entries.
  * @return pointer to the new table. It should be freed with free() by the
  *	   caller
  */
 void *efi_build_mem_table(struct efi_entry_memmap *map, int size, bool skip_bs);

 #endif /* _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>
	*
	* From include/linux/efi.h in kernel 4.1 with some additions/subtractions
	*/

	#ifndef _EFI_H
	#define _EFI_H

	#include <linux/string.h>
	#include <linux/types.h>

	struct efi_device_path;

	#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_SECURITY_VIOLATION (26 \| (1UL << (BITS_PER_LONG - 1)))

	typedef unsigned long efi_status_t;
	typedef u64 efi_physical_addr_t;
	typedef u64 efi_virtual_addr_t;
	typedef void *efi_handle_t;

	#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \
	((efi_guid_t) \
	{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, \
	((a) >> 24) & 0xff, \
	(b) & 0xff, ((b) >> 8) & 0xff, \
	(c) & 0xff, ((c) >> 8) & 0xff, \
	(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } })

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

	/* Enumeration of memory types introduced in UEFI */
	enum efi_mem_type {
	EFI_RESERVED_MEMORY_TYPE,
	/*
	* The code portions of a loaded application.
	* (Note that UEFI OS loaders are UEFI applications.)
	*/
	EFI_LOADER_CODE,
	/*
	* The data portions of a loaded application and
	* the default data allocation type used by an application
	* to allocate pool memory.
	*/
	EFI_LOADER_DATA,
	/* The code portions of a loaded Boot Services Driver */
	EFI_BOOT_SERVICES_CODE,
	/*
	* The data portions of a loaded Boot Serves Driver and
	* the default data allocation type used by a Boot Services
	* Driver to allocate pool memory.
	*/
	EFI_BOOT_SERVICES_DATA,
	/* The code portions of a loaded Runtime Services Driver */
	EFI_RUNTIME_SERVICES_CODE,
	/*
	* The data portions of a loaded Runtime Services Driver and
	* the default data allocation type used by a Runtime Services
	* Driver to allocate pool memory.
	*/
	EFI_RUNTIME_SERVICES_DATA,
	/* Free (unallocated) memory */
	EFI_CONVENTIONAL_MEMORY,
	/* Memory in which errors have been detected */
	EFI_UNUSABLE_MEMORY,
	/* Memory that holds the ACPI tables */
	EFI_ACPI_RECLAIM_MEMORY,
	/* Address space reserved for use by the firmware */
	EFI_ACPI_MEMORY_NVS,
	/*
	* Used by system firmware to request that a memory-mapped IO region
	* be mapped by the OS to a virtual address so it can be accessed by
	* EFI runtime services.
	*/
	EFI_MMAP_IO,
	/*
	* System memory-mapped IO region that is used to translate
	* memory cycles to IO cycles by the processor.
	*/
	EFI_MMAP_IO_PORT,
	/*
	* Address space reserved by the firmware for code that is
	* part of the processor.
	*/
	EFI_PAL_CODE,

	EFI_MAX_MEMORY_TYPE,
	EFI_TABLE_END, /* For efi_build_mem_table() */
	};

	/* Attribute values */
	enum {
	EFI_MEMORY_UC_SHIFT = 0, /* uncached */
	EFI_MEMORY_WC_SHIFT = 1, /* write-coalescing */
	EFI_MEMORY_WT_SHIFT = 2, /* write-through */
	EFI_MEMORY_WB_SHIFT = 3, /* write-back */
	EFI_MEMORY_UCE_SHIFT = 4, /* uncached, exported */
	EFI_MEMORY_WP_SHIFT = 12, /* write-protect */
	EFI_MEMORY_RP_SHIFT = 13, /* read-protect */
	EFI_MEMORY_XP_SHIFT = 14, /* execute-protect */
	EFI_MEMORY_RUNTIME_SHIFT = 63, /* range requires runtime mapping */

	EFI_MEMORY_RUNTIME = 1ULL << EFI_MEMORY_RUNTIME_SHIFT,
	EFI_MEM_DESC_VERSION = 1,
	};

	#define EFI_PAGE_SHIFT 12
	#define EFI_PAGE_SIZE (1UL << EFI_PAGE_SHIFT)

	struct efi_mem_desc {
	u32 type;
	u32 reserved;
	efi_physical_addr_t physical_start;
	efi_virtual_addr_t virtual_start;
	u64 num_pages;
	u64 attribute;
	};

	/* 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

	/* Types and defines for Time Services */
	#define EFI_TIME_ADJUST_DAYLIGHT 0x1
	#define EFI_TIME_IN_DAYLIGHT 0x2
	#define EFI_UNSPECIFIED_TIMEZONE 0x07ff

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

	struct efi_time_cap {
	u32 resolution;
	u32 accuracy;
	u8 sets_to_zero;
	};

	enum efi_locate_search_type {
	all_handles,
	by_register_notify,
	by_protocol
	};

	struct efi_open_protocol_info_entry {
	efi_handle_t agent_handle;
	efi_handle_t controller_handle;
	u32 attributes;
	u32 open_count;
	};

	enum efi_entry_t {
	EFIET_END, /* Signals this is the last (empty) entry */
	EFIET_MEMORY_MAP,

	/* Number of entries */
	EFIET_MEMORY_COUNT,
	};

	#define EFI_TABLE_VERSION 1

	/**
	* struct efi_info_hdr - Header for the EFI info table
	*
	* @version: EFI_TABLE_VERSION
	* @hdr_size: Size of this struct in bytes
	* @total_size: Total size of this header plus following data
	* @spare: Spare space for expansion
	*/
	struct efi_info_hdr {
	u32 version;
	u32 hdr_size;
	u32 total_size;
	u32 spare[5];
	};

	/**
	* struct efi_entry_hdr - Header for a table entry
	*
	* @type: enum eft_entry_t
	* @size size of entry bytes excluding header and padding
	* @addr: address of this entry (0 if it follows the header )
	* @link: size of entry including header and padding
	* @spare1: Spare space for expansion
	* @spare2: Spare space for expansion
	*/
	struct efi_entry_hdr {
	u32 type;
	u32 size;
	u64 addr;
	u32 link;
	u32 spare1;
	u64 spare2;
	};

	/**
	* struct efi_entry_memmap - a memory map table passed to U-Boot
	*
	* @version: EFI's memory map table version
	* @desc_size: EFI's size of each memory descriptor
	* @spare: Spare space for expansion
	* @desc: An array of descriptors, each @desc_size bytes apart
	*/
	struct efi_entry_memmap {
	u32 version;
	u32 desc_size;
	u64 spare;
	struct efi_mem_desc desc[];
	};

	static inline struct efi_mem_desc *efi_get_next_mem_desc(
	struct efi_entry_memmap map, struct efi_mem_desc desc)
	{
	return (struct efi_mem_desc *)((ulong)desc + map->desc_size);
	}

	struct efi_priv {
	efi_handle_t parent_image;
	struct efi_device_path *device_path;
	struct efi_system_table *sys_table;
	struct efi_boot_services *boot;
	struct efi_runtime_services *run;
	bool use_pool_for_malloc;
	unsigned long ram_base;
	unsigned int image_data_type;
	struct efi_info_hdr *info;
	unsigned int info_size;
	void *next_hdr;
	};

	/* Base address of the EFI image */
	extern char image_base[];

	/**
	* efi_get_sys_table() - Get access to the main EFI system table
	*
	* @return pointer to EFI system table
	*/
	struct efi_system_table *efi_get_sys_table(void);

	/**
	* efi_get_ram_base() - Find the base of RAM
	*
	* This is used when U-Boot is built as an EFI application.
	*
	* @return the base of RAM as known to U-Boot
	*/
	unsigned long efi_get_ram_base(void);

	/**
	* efi_init() - Set up ready for use of EFI boot services
	*
	* @priv: Pointer to our private EFI structure to fill in
	* @banner: Banner to display when starting
	* @image: The image handle passed to efi_main()
	* @sys_table: The EFI system table pointer passed to efi_main()
	*/
	int efi_init(struct efi_priv priv, const char banner, efi_handle_t image,
	struct efi_system_table *sys_table);

	/**
	* efi_malloc() - Allocate some memory from EFI
	*
	* @priv: Pointer to private EFI structure
	* @size: Number of bytes to allocate
	* @retp: Return EFI status result
	* @return pointer to memory allocated, or NULL on error
	*/
	void efi_malloc(struct efi_priv priv, int size, efi_status_t *retp);

	/**
	* efi_free() - Free memory allocated from EFI
	*
	* @priv: Pointer to private EFI structure
	* @ptr: Pointer to memory to free
	*/
	void efi_free(struct efi_priv priv, void ptr);

	/**
	* efi_puts() - Write out a string to the EFI console
	*
	* @priv: Pointer to private EFI structure
	* @str: String to write (note this is a ASCII, not unicode)
	*/
	void efi_puts(struct efi_priv priv, const char str);

	/**
	* efi_putc() - Write out a character to the EFI console
	*
	* @priv: Pointer to private EFI structure
	* @ch: Character to write (note this is not unicode)
	*/
	void efi_putc(struct efi_priv *priv, const char ch);

	/**
	* efi_info_get() - get an entry from an EFI table
	*
	* @type: Entry type to search for
	* @datap: Returns pointer to entry data
	* @sizep: Returns pointer to entry size
	* @return 0 if OK, -ENODATA if there is no table, -ENOENT if there is no entry
	* of the requested type, -EPROTONOSUPPORT if the table has the wrong version
	*/
	int efi_info_get(enum efi_entry_t type, void *datap, int sizep);

	/**
	* efi_build_mem_table() - make a sorted copy of the memory table
	*
	* @map: Pointer to EFI memory map table
	* @size: Size of table in bytes
	* @skip_bs: True to skip boot-time memory and merge it with conventional
	* memory. This will significantly reduce the number of table
	* entries.
	* @return pointer to the new table. It should be freed with free() by the
	* caller
	*/
	void efi_build_mem_table(struct efi_entry_memmap map, int size, bool skip_bs);

	#endif /* _LINUX_EFI_H */