[PATCH v2 0/3] fwu: Call EFI stack initialization after preboot

Michal Simek michal.simek at amd.com
Wed Mar 18 14:25:08 CET 2026


Hi,

the whole series is trying to address issues we have on platforms where usb
and ufs init are not done before efi initialization. This is happenin on
platforms where A/B update is enabled. FWU code is called early and do EFI
initialization before usb and ufs started that's why they are not visible.

We are workarounding it by starting usb/ufs from board file but this should
be more generic approach.

Thanks,
Michal

Changes in v2:
- new patch in series
- check return value

Michal Simek (3):
  event: Check return value from event_notify_null()
  event: Introduce EVT_POST_PREBOOT event
  fwu: Move boottime checks to EVT_POST_PREBOOT

 common/board_r.c      | 6 +++++-
 common/main.c         | 4 ++++
 include/event.h       | 9 +++++++++
 lib/fwu_updates/fwu.c | 2 +-
 test/dm/fwu_mdata.c   | 4 ++--
 5 files changed, 21 insertions(+), 4 deletions(-)

-- 
2.43.0

base-commit: 61ddd555f58ef5169c48b190423640d949e4aad1
branch: debian-sent3


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