api.h

有助于了解操作系统如何启动之过程

  grub_efi_uint8_t slave_master;
  grub_efi_uint16_t lun;
};
typedef struct grub_efi_atapi_device_path grub_efi_atapi_device_path_t;

#define GRUB_EFI_SCSI_DEVICE_PATH_SUBTYPE		2

struct grub_efi_scsi_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint16_t pun;
  grub_efi_uint16_t lun;
};
typedef struct grub_efi_scsi_device_path grub_efi_scsi_device_path_t;

#define GRUB_EFI_FIBRE_CHANNEL_DEVICE_PATH_SUBTYPE	3

struct grub_efi_fibre_channel_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint32_t reserved;
  grub_efi_uint64_t wwn;
  grub_efi_uint64_t lun;
};
typedef struct grub_efi_fibre_channel_device_path grub_efi_fibre_channel_device_path_t;

#define GRUB_EFI_1394_DEVICE_PATH_SUBTYPE		4

struct grub_efi_1394_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint32_t reserved;
  grub_efi_uint64_t guid;
};
typedef struct grub_efi_1394_device_path grub_efi_1394_device_path_t;

#define GRUB_EFI_USB_DEVICE_PATH_SUBTYPE		5

struct grub_efi_usb_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint8_t parent_port_number;
  grub_efi_uint8_t interface;
};
typedef struct grub_efi_usb_device_path grub_efi_usb_device_path_t;

#define GRUB_EFI_USB_CLASS_DEVICE_PATH_SUBTYPE		15

struct grub_efi_usb_class_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint16_t vendor_id;
  grub_efi_uint16_t product_id;
  grub_efi_uint8_t device_class;
  grub_efi_uint8_t device_subclass;
  grub_efi_uint8_t device_protocol;
};
typedef struct grub_efi_usb_class_device_path grub_efi_usb_class_device_path_t;

#define GRUB_EFI_I2O_DEVICE_PATH_SUBTYPE		6

struct grub_efi_i2o_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint32_t tid;
};
typedef struct grub_efi_i2o_device_path grub_efi_i2o_device_path_t;

#define GRUB_EFI_MAC_ADDRESS_DEVICE_PATH_SUBTYPE	11

struct grub_efi_mac_address_device_path
{
  grub_efi_device_path_t header;
  grub_efi_mac_address_t mac_address;
  grub_efi_uint8_t if_type;
};
typedef struct grub_efi_mac_address_device_path grub_efi_mac_address_device_path_t;

#define GRUB_EFI_IPV4_DEVICE_PATH_SUBTYPE		12

struct grub_efi_ipv4_device_path
{
  grub_efi_device_path_t header;
  grub_efi_ipv4_address_t local_ip_address;
  grub_efi_ipv4_address_t remote_ip_address;
  grub_efi_uint16_t local_port;
  grub_efi_uint16_t remote_port;
  grub_efi_uint16_t protocol;
  grub_efi_uint8_t static_ip_address;
};
typedef struct grub_efi_ipv4_device_path grub_efi_ipv4_device_path_t;

#define GRUB_EFI_IPV6_DEVICE_PATH_SUBTYPE		13

struct grub_efi_ipv6_device_path
{
  grub_efi_device_path_t header;
  grub_efi_ipv6_address_t local_ip_address;
  grub_efi_ipv6_address_t remote_ip_address;
  grub_efi_uint16_t local_port;
  grub_efi_uint16_t remote_port;
  grub_efi_uint16_t protocol;
  grub_efi_uint8_t static_ip_address;
};
typedef struct grub_efi_ipv6_device_path grub_efi_ipv6_device_path_t;

#define GRUB_EFI_INFINIBAND_DEVICE_PATH_SUBTYPE		9

struct grub_efi_infiniband_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint32_t resource_flags;
  grub_efi_uint8_t port_gid[16];
  grub_efi_uint64_t remote_id;
  grub_efi_uint64_t target_port_id;
  grub_efi_uint64_t device_id;
};
typedef struct grub_efi_infiniband_device_path grub_efi_infiniband_device_path_t;

#define GRUB_EFI_UART_DEVICE_PATH_SUBTYPE		14

struct grub_efi_uart_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint32_t reserved;
  grub_efi_uint64_t baud_rate;
  grub_efi_uint8_t data_bits;
  grub_efi_uint8_t parity;
  grub_efi_uint8_t stop_bits;
};
typedef struct grub_efi_uart_device_path grub_efi_uart_device_path_t;

#define GRUB_EFI_VENDOR_MESSAGING_DEVICE_PATH_SUBTYPE	10

struct grub_efi_vendor_messaging_device_path
{
  grub_efi_device_path_t header;
  grub_efi_guid_t vendor_guid;
  grub_efi_uint8_t vendor_defined_data[0];
};
typedef struct grub_efi_vendor_messaging_device_path grub_efi_vendor_messaging_device_path_t;

/* Media Device Path.  */
#define GRUB_EFI_MEDIA_DEVICE_PATH_TYPE			4

#define GRUB_EFI_HARD_DRIVE_DEVICE_PATH_SUBTYPE		1

struct grub_efi_hard_drive_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint32_t partition_number;
  grub_efi_lba_t partition_start;
  grub_efi_lba_t partition_size;
  grub_efi_uint8_t partition_signature[8];
  grub_efi_uint8_t mbr_type;
  grub_efi_uint8_t signature_type;
};
typedef struct grub_efi_hard_drive_device_path grub_efi_hard_drive_device_path_t;

#define GRUB_EFI_CDROM_DEVICE_PATH_SUBTYPE		2

struct grub_efi_cdrom_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint32_t boot_entry;
  grub_efi_lba_t partition_start;
  grub_efi_lba_t partition_size;
};
typedef struct grub_efi_cdrom_device_path grub_efi_cdrom_device_path_t;

#define GRUB_EFI_VENDOR_MEDIA_DEVICE_PATH_SUBTYPE	3

struct grub_efi_vendor_media_device_path
{
  grub_efi_device_path_t header;
  grub_efi_guid_t vendor_guid;
  grub_efi_uint8_t vendor_defined_data[0];
};
typedef struct grub_efi_vendor_media_device_path grub_efi_vendor_media_device_path_t;

#define GRUB_EFI_FILE_PATH_DEVICE_PATH_SUBTYPE		4

struct grub_efi_file_path_device_path
{
  grub_efi_device_path_t header;
  grub_efi_char16_t path_name[0];
};
typedef struct grub_efi_file_path_device_path grub_efi_file_path_device_path_t;

#define GRUB_EFI_PROTOCOL_DEVICE_PATH_SUBTYPE		5

struct grub_efi_protocol_device_path
{
  grub_efi_device_path_t header;
  grub_efi_guid_t guid;
};
typedef struct grub_efi_protocol_device_path grub_efi_protocol_device_path_t;

/* BIOS Boot Specification Device Path.  */
#define GRUB_EFI_BIOS_DEVICE_PATH_TYPE			5

#define GRUB_EFI_BIOS_DEVICE_PATH_SUBTYPE		1

struct grub_efi_bios_device_path
{
  grub_efi_device_path_t header;
  grub_efi_uint16_t device_type;
  grub_efi_uint16_t status_flags;
  char description[0];
};
typedef struct grub_efi_bios_device_path grub_efi_bios_device_path_t;

struct grub_efi_open_protocol_information_entry
{
  grub_efi_handle_t agent_handle;
  grub_efi_handle_t controller_handle;
  grub_efi_uint32_t attributes;
  grub_efi_uint32_t open_count;
};
typedef struct grub_efi_open_protocol_information_entry grub_efi_open_protocol_information_entry_t;

struct grub_efi_time
{
  grub_efi_uint16_t year;
  grub_efi_uint8_t month;
  grub_efi_uint8_t day;
  grub_efi_uint8_t hour;
  grub_efi_uint8_t minute;
  grub_efi_uint8_t second;
  grub_efi_uint8_t pad1;
  grub_efi_uint32_t nanosecond;
  grub_efi_int16_t time_zone;
  grub_efi_uint8_t daylight;
  grub_efi_uint8_t pad2;
};
typedef struct grub_efi_time grub_efi_time_t;

struct grub_efi_time_capabilities
{
  grub_efi_uint32_t resolution;
  grub_efi_uint32_t accuracy;
  grub_efi_boolean_t sets_to_zero;
};
typedef struct grub_efi_time_capabilities grub_efi_time_capabilities_t;

struct grub_efi_input_key
{
  grub_efi_uint16_t scan_code;
  grub_efi_char16_t unicode_char;
};
typedef struct grub_efi_input_key grub_efi_input_key_t;

struct grub_efi_simple_text_output_mode
{
  grub_efi_int32_t max_mode;
  grub_efi_int32_t mode;
  grub_efi_int32_t attribute;
  grub_efi_int32_t cursor_column;
  grub_efi_int32_t cursor_row;
  grub_efi_boolean_t cursor_visible;
};
typedef struct grub_efi_simple_text_output_mode grub_efi_simple_text_output_mode_t;

/* Tables.  */
struct grub_efi_table_header
{
  grub_efi_uint64_t signature;
  grub_efi_uint32_t revision;
  grub_efi_uint32_t header_size;
  grub_efi_uint32_t crc32;
  grub_efi_uint32_t reserved;
};
typedef struct grub_efi_table_header grub_efi_table_header_t;

struct grub_efi_boot_services
{
  grub_efi_table_header_t hdr;
  
  grub_efi_tpl_t
  (*raise_tpl) (grub_efi_tpl_t new_tpl);
  
  void
  (*restore_tpl) (grub_efi_tpl_t old_tpl);
  
  grub_efi_status_t
  (*allocate_pages) (grub_efi_allocate_type_t type,
		     grub_efi_memory_type_t memory_type,
		     grub_efi_uintn_t pages,
		     grub_efi_physical_address_t *memory);
  
  grub_efi_status_t
  (*free_pages) (grub_efi_physical_address_t memory,
		 grub_efi_uintn_t pages);
  
  grub_efi_status_t
  (*get_memory_map) (grub_efi_uintn_t *memory_map_size,
		     grub_efi_memory_descriptor_t *memory_map,
		     grub_efi_uintn_t *map_key,
		     grub_efi_uintn_t *descriptor_size,
		     grub_efi_uint32_t *descriptor_version);
  
  grub_efi_status_t
  (*allocate_pool) (grub_efi_memory_type_t pool_type,
		    grub_efi_uintn_t size,
		    void **buffer);
  
  grub_efi_status_t
  (*free_pool) (void *buffer);
  
  grub_efi_status_t
  (*create_event) (grub_efi_uint32_t type,
		   grub_efi_tpl_t notify_tpl,
		   void (*notify_function) (grub_efi_event_t event,
					    void *context),
		   void *notify_context,
		   grub_efi_event_t *event);

  grub_efi_status_t
  (*set_timer) (grub_efi_event_t event,
		grub_efi_timer_delay_t type,
		grub_efi_uint64_t trigger_time);
  
   grub_efi_status_t
   (*wait_for_event) (grub_efi_uintn_t num_events,
		      grub_efi_event_t *event,
		      grub_efi_uintn_t *index);

  grub_efi_status_t
  (*signal_event) (grub_efi_event_t event);
  
  grub_efi_status_t
  (*close_event) (grub_efi_event_t event);
  
  grub_efi_status_t
  (*check_event) (grub_efi_event_t event);

   grub_efi_status_t
   (*install_protocol_interface) (grub_efi_handle_t *handle,
				  grub_efi_guid_t *protocol,
				  grub_efi_interface_type_t interface_type,
				  void *interface);
  
  grub_efi_status_t
  (*reinstall_protocol_interface) (grub_efi_handle_t handle,
				   grub_efi_guid_t *protocol,
				   void *old_interface,
				   void *new_interface);
  
  grub_efi_status_t
  (*uninstall_protocol_interface) (grub_efi_handle_t handle,
				   grub_efi_guid_t *protocol,
				   void *interface);

  grub_efi_status_t
  (*handle_protocol) (grub_efi_handle_t handle,
		      grub_efi_guid_t *protocol,
		      void **interface);
  
  void *reserved;
  
  grub_efi_status_t
  (*register_protocol_notify) (grub_efi_guid_t *protocol,
			       grub_efi_event_t event,
			       void **registration);

  grub_efi_status_t
  (*locate_handle) (grub_efi_locate_search_type_t search_type,