[PATCH v3 4/6] cmd: bcb: introduce 'ab_dump' command to print BCB block content

[Mattijs Korpershoek]

Hi Dmitry,

On jeu., oct. 10, 2024 at 13:20, Dmitry Rokosov <ddrokosov at salutedevices.com> wrote:

> On Wed, Oct 09, 2024 at 03:13:57PM -0600, Simon Glass wrote:
>> Hi Dmitry,
>> 
>> On Wed, 9 Oct 2024 at 07:26, Dmitry Rokosov <ddrokosov at salutedevices.com> wrote:
>> >
>> > Hello Simon,
>> >
>> > On Tue, Oct 08, 2024 at 07:57:15PM -0600, Simon Glass wrote:
>> > > On Tue, 8 Oct 2024 at 14:18, Dmitry Rokosov <ddrokosov at salutedevices.com> wrote:
>> > > >
>> > > > It's really helpful to have the ability to dump BCB block for debugging
>> > > > A/B logic on the board supported this partition schema.
>> > > >
>> > > > Command 'bcb ab_dump' prints all fields of bootloader_control struct
>> > > > including slot_metadata for all presented slots.
>> > > >
>> > > > Output example:
>> > > > =====
>> > > > > board# bcb ab_dump ubi 0#misc
>> > > > > Read 512 bytes from volume misc to 000000000bf07580
>> > > > > Read 512 bytes from volume misc to 000000000bf42f40
>> > > > > Bootloader Control:       [misc]
>> > > > > Active Slot:              _a
>> > > > > Magic Number:             0x42414342
>> > > > > Version:                  1
>> > > > > Number of Slots:          2
>> > > > > Recovery Tries Remaining: 0
>> > > > > CRC:                      0x2c8b50bc (Valid)
>> > > > >
>> > > > > Slot[0] Metadata:
>> > > > >       - Priority:         15
>> > > > >       - Tries Remaining:  0
>> > > > >       - Successful Boot:  1
>> > > > >       - Verity Corrupted: 0
>> > > > >
>> > > > > Slot[1] Metadata:
>> > > > >       - Priority:         14
>> > > > >       - Tries Remaining:  7
>> > > > >       - Successful Boot:  0
>> > > > >       - Verity Corrupted: 0
>> > > > ====
>> > > >
>> > > > Signed-off-by: Dmitry Rokosov <ddrokosov at salutedevices.com>
>> > > > ---
>> > > >  boot/android_ab.c    | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>> > > >  cmd/bcb.c            | 35 +++++++++++++++++++++++++++
>> > > >  include/android_ab.h | 10 ++++++++
>> > > >  3 files changed, 113 insertions(+)
>> > > >
>> > >
>> > > Reviewed-by: Simon Glass <sjg at chromium.org>
>> > >
>> > > Can you also update the test?
>> >
>> > I apologize, but I didn't quite understand your point. Could you please
>> > clarify? This patch series includes additional tests for the 'ab_dump'
>> > subcommand. For more details, please refer to:
>> >
>> > https://lore.kernel.org/all/20241008-android_ab_master-v3-6-f292c45a33e4@salutedevices.com/
>> 
>> OK, thank you. Sometimes it is easier (for reviewers) if you update
>> the test in the same commit.
>
> Should I resend the patch series with ab_dump implementation and tests
> in the same commit?
>
> I can prepare new version, if needed, no problem.

No need to resend a new version just for this, since it's already
been reviewed.

Keep the suggestion in mind for future series!

>
> -- 
> Thank you,
> Dmitry