[PATCH v4 09/34] efi: Add EFI uclass for media

[Simon Glass]

Hi Heinrich,

On Sat, 13 Nov 2021 at 02:29, Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
>
>
>
> On 11/8/21 06:29, AKASHI Takahiro wrote:
> > On Sun, Nov 07, 2021 at 09:43:22AM -0700, Simon Glass wrote:
> >> Hi Heinrich,
> >>
> >> On Sun, 7 Nov 2021 at 01:21, Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
> >>>
> >>>
> >>>
> >>> On 11/4/21 04:09, Simon Glass wrote:
> >>>> At present UCLASS_EFI is used to represent an EFI filesystem among other
> >>>> things. The description of this uclass is "EFI managed devices" which is
> >>>> pretty vague. The only driver that uses this uclass is in fact not a real
> >>>> U-Boot driver, since its operations do not include a struct udevice.
> >>>>
> >>>> Rather than mess with this, create a new UCLASS_EFI_MEDIA uclass to handle
> >>>> EFI media such as disks. Make this the uclass to use for EFI media so that
> >>>> it can be used with 'part list', for example.
> >>>>
> >>>> The existing implementation using UCLASS_EFI remains as is, for
> >>>> discussion.
> >>>>
> >>>> Signed-off-by: Simon Glass <sjg at chromium.org>
> >>>> ---
> >>>>
> >>>> (no changes since v2)
> >>>>
> >>>> Changes in v2:
> >>>> - Add MAINTAINERS entry
> >>>> - Show the correct interface type with 'part list'
> >>>> - Update the commit message to explain things better
> >>>>
> >>>>    MAINTAINERS                      |  3 +++
> >>>>    arch/sandbox/dts/test.dts        |  4 ++++
> >>>>    disk/part.c                      |  5 ++++-
> >>>>    drivers/block/Kconfig            | 23 +++++++++++++++++++++++
> >>>>    drivers/block/Makefile           |  3 +++
> >>>>    drivers/block/blk-uclass.c       |  2 +-
> >>>>    drivers/block/efi-media-uclass.c | 15 +++++++++++++++
> >>>>    drivers/block/sb_efi_media.c     | 20 ++++++++++++++++++++
> >>>>    include/dm/uclass-id.h           |  1 +
> >>>>    test/dm/Makefile                 |  1 +
> >>>>    test/dm/efi_media.c              | 24 ++++++++++++++++++++++++
> >>>>    11 files changed, 99 insertions(+), 2 deletions(-)
> >>>>    create mode 100644 drivers/block/efi-media-uclass.c
> >>>>    create mode 100644 drivers/block/sb_efi_media.c
> >>>>    create mode 100644 test/dm/efi_media.c
> >>>>

[..]

> >>>>        [IF_TYPE_NVME]          = UCLASS_NVME,
> >>>> -     [IF_TYPE_EFI]           = UCLASS_EFI,
> >>>> +     [IF_TYPE_EFI]           = UCLASS_EFI_MEDIA,
> >>>
> >>> Don't break existing code. Create a new if_type here.
> >>
> >> My understanding is that this is not actually used at present. The
> >> tests appear to pass without trouble.
> >>
> >> What problem are you seeing?
>
> I want the following to be successful:
>
> make sandconfig
> make menuconfig
> # set CONFIG_EFI_SELFTEST=y
> make -j$(nproc)
> ./u-boot -T
> setenv efi_selftest block device
> bootefi selftest
> ls efi 0:1
> load efi 0:1 $fdt_addr_r hello.txt
> mm.b $fdt_addr_r
>
> A file with the following string is loaded to memory: "Hello world!\r"

I still am lost here.

Do you mean CONFIG_CMD_BOOTEFI_SELFTEST=y

I cannot find CONFIG_EFI_SELFTEST

Assuming it is that, this is what I see when I try that on -next :

/tmp/b/sandbox/u-boot -T
sandbox_serial serial: pinctrl_select_state_full:
uclass_get_device_by_phandle_id: err=-19


U-Boot 2022.01-rc3-00126-gf89615088fb-dirty (Dec 03 2021 - 20:34:58 -0700)

Model: sandbox
DRAM:  128 MiB
WDT:   Not starting gpio-wdt
WDT:   Not starting wdt at 0
MMC:   mmc2: 2 (SD), mmc1: 1 (SD), mmc0: 0 (SD)
Loading Environment from nowhere... OK
In:    cros-ec-keyb
Out:   vidconsole
Err:   vidconsole
Model: sandbox
SCSI:
Net:   eth0: eth at 10002000, eth5: eth at 10003000, eth3: sbe5, eth6:
eth at 10004000, eth4: dsa-test-eth, eth2: lan0, eth7: lan1
Hit any key to stop autoboot:  0
=> setenv efi_selftest block device
=> bootefi selftest
Scanning disk mmc2.blk...
Scanning disk mmc1.blk...
Scanning disk mmc0.blk...
Found 3 disks
No EFI system partition
Cannot install EFI_TCG2_PROTOCOL
"dfu_alt_info" env variable not defined!
Probably dfu_alt_info not defined
"dfu_alt_info" env variable not defined!
Probably dfu_alt_info not defined

Testing EFI API implementation

Selected test: 'block device'

Setting up 'block device'
Setting up 'block device' succeeded

Executing 'block device'
lib/efi_selftest/efi_selftest_block_device.c(404):
TODO: Wrong volume label '', expected 'U-BOOT TEST'
Executing 'block device' succeeded

Tearing down 'block device'
Tearing down 'block device' succeeded

Summary: 0 failures

=> ls efi 0:1
Couldn't find partition efi 0:1
=> load efi 0:1 $fdt_addr_r hello.txt
Couldn't find partition efi 0:1
Can't set block device


What am I missing?

>
> It works if I apply
>
> [PATCH 1/1] blk: simplify blk_get_devnum_by_typename()
> https://lists.denx.de/pipermail/u-boot/2021-October/464585.html
>
> If you want to keep the superfluous if_type-uclass table, please, use a
> separate if_type for each uclass in this patch and suggest an
> alternative fix for the test above.

Regards,
Simon
[..]