We currently only support EFI_FILE_PROTOCOL_REVISION while UEFI specs 2.4 - 2.7 prescribe EFI_FILE_PROTOCOL_REVISION2. Add a todo.
Add missing constants for the EFI file protocol revision.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- doc/README.uefi | 3 +++ include/efi_api.h | 8 +++++++- lib/efi_loader/efi_file.c | 4 ++++ 3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/doc/README.uefi b/doc/README.uefi index 0982fad92e..cda29cdcf7 100644 --- a/doc/README.uefi +++ b/doc/README.uefi @@ -329,6 +329,9 @@ This driver is only available if U-Boot is configured with * persistence * runtime support
+* incompletely implemented protocols + * support version 0x00020000 of the EFI file protocol + ## Links
* [1](http://uefi.org/specifications) diff --git a/include/efi_api.h b/include/efi_api.h index 63b703c951..407acacc81 100644 --- a/include/efi_api.h +++ b/include/efi_api.h @@ -1326,7 +1326,9 @@ struct efi_pxe { #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \ EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \ 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b) -#define EFI_FILE_PROTOCOL_REVISION 0x00010000 +#define EFI_FILE_PROTOCOL_REVISION 0x00010000 +#define EFI_FILE_PROTOCOL_REVISION2 0x00020000 +#define EFI_FILE_PROTOCOL_LATEST_REVISION EFI_FILE_PROTOCOL_REVISION2
struct efi_file_handle { u64 rev; @@ -1350,6 +1352,10 @@ struct efi_file_handle { const efi_guid_t *info_type, efi_uintn_t buffer_size, void *buffer); efi_status_t (EFIAPI *flush)(struct efi_file_handle *file); + /* + * TODO: We currently only support EFI file protocol revision 0x00010000 + * while UEFI specs 2.4 - 2.7 prescribe revision 0x00020000. + */ };
#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000 diff --git a/lib/efi_loader/efi_file.c b/lib/efi_loader/efi_file.c index bc715218a1..f2843cad2d 100644 --- a/lib/efi_loader/efi_file.c +++ b/lib/efi_loader/efi_file.c @@ -628,6 +628,10 @@ static efi_status_t EFIAPI efi_file_flush(struct efi_file_handle *file) }
static const struct efi_file_handle efi_file_handle_protocol = { + /* + * TODO: We currently only support EFI file protocol revision 0x00010000 + * while UEFI specs 2.4 - 2.7 prescribe revision 0x00020000. + */ .rev = EFI_FILE_PROTOCOL_REVISION, .open = efi_file_open, .close = efi_file_close, -- 2.20.1