Commit 55839d51 authored by Matt Fleming's avatar Matt Fleming Committed by H. Peter Anvin
Browse files

efi: Add EFI file I/O data types 



The x86 EFI stub needs to access files, for example when loading
initrd's. Add the required data types.

Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: default avatarMatt Fleming <matt.fleming@intel.com>
Link: http://lkml.kernel.org/r/1318848017-12301-1-git-send-email-matt@console-pimps.org


Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
parent e2527a7c

include/linux/efi.h

+40 −0
Original line number Diff line number Diff line
@@ -307,6 +307,12 @@ typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, 
#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;
@@ -362,6 +368,40 @@ typedef struct { 
	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)



/*

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