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efi_loader: correct EFI_BLOCK_IO_PROTOCOL definitions

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Add the revision constants.
Depending on the revision additional fields are needed in the
media descriptor.
Use efi_uintn_t for number of bytes to read or write.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Heinrich Schuchardt
2018-01-19 20:24:48 +01:00
committed by Alexander Graf
parent 64e4db0f11
commit 4f94865b30
2 changed files with 14 additions and 6 deletions
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12
include/efi_api.h
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@@ -424,18 +424,26 @@ struct efi_block_io_media
u32 io_align;
u8 pad2[4];
u64 last_block;
/* Added in revision 2 of the protocol */
u64 lowest_aligned_lba;
u32 logical_blocks_per_physical_block;
/* Added in revision 3 of the protocol */
u32 optimal_transfer_length_granualarity;
};
#define EFI_BLOCK_IO_PROTOCOL_REVISION2 0x00020001
#define EFI_BLOCK_IO_PROTOCOL_REVISION3 0x0002001f
struct efi_block_io {
u64 revision;
struct efi_block_io_media *media;
efi_status_t (EFIAPI *reset)(struct efi_block_io *this,
char extended_verification);
efi_status_t (EFIAPI *read_blocks)(struct efi_block_io *this,
u32 media_id, u64 lba, unsigned long buffer_size,
u32 media_id, u64 lba, efi_uintn_t buffer_size,
void *buffer);
efi_status_t (EFIAPI *write_blocks)(struct efi_block_io *this,
u32 media_id, u64 lba, unsigned long buffer_size,
u32 media_id, u64 lba, efi_uintn_t buffer_size,
void *buffer);
efi_status_t (EFIAPI *flush_blocks)(struct efi_block_io *this);
};