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efi_driver: create a parent device for all EFI block devices

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Up to now root has been the parent device for all block devices created via
calling ConnectController(). This does not work well together with the
implementation of bootstd.

Add a dummy parent device for all EFI block devices.

With this change EFI block devices are also accessible via commands like
'cat', 'load', and 'ls'.

    => dm tree
     Class     Seq    Probed  Driver                Name
    -----------------------------------------------------------
     efi           0  [ + ]   EFI block driver      `-- efi
     blk           3  [ + ]   efi_blk                   `-- efi.efiblk#0
     partition     0  [ + ]   blk_partition                 `-- efi.efiblk#0:1

    => ls efiloader 0:1
           13   hello.txt
            7   u-boot.txt
    2 file(s), 0 dir(s)

    => cat efiloader 0:1 hello.txt
    Hello world!

    => efidebug dh
    0000000018df1700 (efi.efiblk#0:1)
      /VenHw(dbca4c98-6cb0-694d-0872-819c650cb7b8)/HD(1,MBR,0xd1535d21,0x1,0x7f)
      Block IO
      Simple File System

Adjust the event dump unit test to consider the new event spy.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt
2025-02-15 16:22:06 +01:00
committed by Simon Glass
parent fc29c54c16
commit ad87f2c3c8
2 changed files with 29 additions and 1 deletions
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1
test/py/tests/test_event_dump.py
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@@ -18,6 +18,7 @@ def test_event_dump(ubman):
EVT_FT_FIXUP bootmeth_vbe_ft_fixup .*boot/vbe_request.c:.*
EVT_FT_FIXUP bootmeth_vbe_simple_ft_fixup .*boot/vbe_simple_os.c:.*
EVT_LAST_STAGE_INIT alloc_write_acpi_tables .*lib/acpi/acpi_table.c:.*
EVT_LAST_STAGE_INIT efi_block_device_create .*lib/efi_driver/efi_block_device.c:.*
EVT_LAST_STAGE_INIT install_smbios_table .*lib/efi_loader/efi_smbios.c:.*
EVT_MISC_INIT_F sandbox_early_getopt_check .*arch/sandbox/cpu/start.c:.*
EVT_TEST h_adder_simple .*test/common/event.c:'''