Heinrich Schuchardt 8cf8ad3533 efi_driver: don't bind internal block devices ...

UEFI block devices can either mirror U-Boot's internal devices or be
provided by an EFI application like iPXE.

When ConnectController() is invoked for the EFI_BLOCK_IO_PROTOCOL
interface for such an application provided device we create a virtual
U-Boot block device of type "efi_blk".

Currently we do not call ConnectController() when handles for U-Boot's
internal block devices are created. If an EFI application calls
ConnectController() for a handle relating to an internal block device,
we erroneously create an extra "efi_blk" block device.

E.g. the UEFI shell has a command 'connect -r' which calls
ConnectController() for all handles with device path protocol.

In the Supported() method of our EFI_DRIVER_BINDING_PROTOCOL return
EFI_UNSUPPORTED when dealing with an U-Boot internal device.

Reported-by: Etienne Carriere <etienne.carriere@linaro.org>
Fixes: commit 05ef48a2484b ("efi_driver: EFI block driver")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Tested-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

2022-09-09 16:07:54 +02:00

..

efi_block_device.c

efi_loader: move udevice pointer into struct efi_object

2022-08-13 11:09:49 +02:00

efi_uclass.c

efi_driver: don't bind internal block devices

2022-09-09 16:07:54 +02:00

Makefile

efi_loader: Drop code that doesn't work with driver model

2021-10-21 03:46:03 +02:00