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    Subject[tip:x86/efi] efi: Add EFI file I/O data types
    Commit-ID:  55839d515495e766605d7aaabd9c2758370a8d27
    Gitweb: http://git.kernel.org/tip/55839d515495e766605d7aaabd9c2758370a8d27
    Author: Matt Fleming <matt.fleming@intel.com>
    AuthorDate: Thu, 11 Aug 2011 10:28:06 +0100
    Committer: H. Peter Anvin <hpa@linux.intel.com>
    CommitDate: Fri, 9 Dec 2011 17:35:51 -0800

    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: Matt Fleming <matt.fleming@intel.com>
    Link: http://lkml.kernel.org/r/1318848017-12301-1-git-send-email-matt@console-pimps.org
    Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
    ---
    include/linux/efi.h | 40 ++++++++++++++++++++++++++++++++++++++++
    1 files changed, 40 insertions(+), 0 deletions(-)

    diff --git a/include/linux/efi.h b/include/linux/efi.h
    index d407c88..37c3007 100644
    --- a/include/linux/efi.h
    +++ b/include/linux/efi.h
    @@ -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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