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efi_loader: TODO for the EFI file protocol

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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>
This commit is contained in:
Heinrich Schuchardt 2019-03-27 21:41:04 +01:00
parent d0826507e2
commit 17394f9a66
3 changed files with 14 additions and 1 deletions
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3
doc/README.uefi
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@ -329,6 +329,9 @@ This driver is only available if U-Boot is configured with
* persistence * persistence
* runtime support * runtime support
* incompletely implemented protocols
* support version 0x00020000 of the EFI file protocol
## Links ## Links
* [1](http://uefi.org/specifications) * [1](http://uefi.org/specifications)

6
include/efi_api.h
View file

@ -1323,6 +1323,8 @@ struct efi_pxe {
EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \ EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \
0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b) 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 { struct efi_file_handle {
u64 rev; u64 rev;
@ -1346,6 +1348,10 @@ struct efi_file_handle {
const efi_guid_t *info_type, efi_uintn_t buffer_size, const efi_guid_t *info_type, efi_uintn_t buffer_size,
void *buffer); void *buffer);
efi_status_t (EFIAPI *flush)(struct efi_file_handle *file); 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 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000

4
lib/efi_loader/efi_file.c
View file

@ -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 = { 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, .rev = EFI_FILE_PROTOCOL_REVISION,
.open = efi_file_open, .open = efi_file_open,
.close = efi_file_close, .close = efi_file_close,