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efi_loader: EFI_FILE_PROTOCOL rev 2 stub

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The UEFI specification requires to implement version 2 of the
EFI_FILE_PROTOCOL. Provide the missing functions as stubs.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-09-08 09:35:32 +02:00
parent 9bb62fa63b
commit e692ed1d56
2 changed files with 47 additions and 9 deletions
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20
include/efi_api.h
View file

@ -1461,6 +1461,12 @@ struct efi_pxe_base_code_protocol {
#define EFI_FILE_PROTOCOL_REVISION2 0x00020000
#define EFI_FILE_PROTOCOL_LATEST_REVISION EFI_FILE_PROTOCOL_REVISION2
struct efi_file_io_token {
struct efi_event *event;
efi_status_t status;
efi_uintn_t buffer_size;
void *buffer;};
struct efi_file_handle {
u64 rev;
efi_status_t (EFIAPI *open)(struct efi_file_handle *file,
@ -1483,10 +1489,16 @@ 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.
*/
efi_status_t (EFIAPI *open_ex)(struct efi_file_handle *file,
struct efi_file_handle **new_handle,
u16 *file_name, u64 open_mode, u64 attributes,
struct efi_file_io_token *token);
efi_status_t (EFIAPI *read_ex)(struct efi_file_handle *file,
struct efi_file_io_token *token);
efi_status_t (EFIAPI *write_ex)(struct efi_file_handle *file,
struct efi_file_io_token *token);
efi_status_t (EFIAPI *flush_ex)(struct efi_file_handle *file,
struct efi_file_io_token *token);
};
#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000

36
lib/efi_loader/efi_file.c
View file

@ -741,12 +741,34 @@ static efi_status_t EFIAPI efi_file_flush(struct efi_file_handle *file)
return EFI_EXIT(EFI_SUCCESS);
}
static efi_status_t EFIAPI efi_file_open_ex(struct efi_file_handle *file,
struct efi_file_handle **new_handle,
u16 *file_name, u64 open_mode, u64 attributes,
struct efi_file_io_token *token)
{
return EFI_UNSUPPORTED;
}
static efi_status_t EFIAPI efi_file_read_ex(struct efi_file_handle *file,
struct efi_file_io_token *token)
{
return EFI_UNSUPPORTED;
}
static efi_status_t EFIAPI efi_file_write_ex(struct efi_file_handle *file,
struct efi_file_io_token *token)
{
return EFI_UNSUPPORTED;
}
static efi_status_t EFIAPI efi_file_flush_ex(struct efi_file_handle *file,
struct efi_file_io_token *token)
{
return EFI_UNSUPPORTED;
}
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_REVISION2,
.open = efi_file_open,
.close = efi_file_close,
.delete = efi_file_delete,
@ -757,6 +779,10 @@ static const struct efi_file_handle efi_file_handle_protocol = {
.getinfo = efi_file_getinfo,
.setinfo = efi_file_setinfo,
.flush = efi_file_flush,
.open_ex = efi_file_open_ex,
.read_ex = efi_file_read_ex,
.write_ex = efi_file_write_ex,
.flush_ex = efi_file_flush_ex,
};
/**