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[0/2] EFI: Reset system after capsule-on-disk

Message ID 164362071931.312714.14793570668139727572.stgit@localhost
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Series EFI: Reset system after capsule-on-disk | expand

Message

Masami Hiramatsu Jan. 31, 2022, 9:18 a.m. UTC 
Hi,

According to Takahiro's suggestion and discussion, I made a patchset to
update the EFI capsule-on-disk, so that it does not use UpdateCapsule()
EFI API and reset after completing the capsule-on-disk.

The reset after completing the capsule-on-disk is stated in the UEFI
specification 2.9, section 8.5.5 "Delivery of Capsules via file on Mass
Storage device" as below,

    In all cases that a capsule is identified for processing the system is
    restarted after capsule processing is completed.

Note that this feature is enabled by CONFIG_EFI_RESET_AFTER_CAPSULE_ON_DISK.
If you want to keep the current firmware runs after capsule-on-disk (e.g.
for debugging), you can configure it disabled.

Thank you,

---

Masami Hiramatsu (2):
      efi_loader: Avoid using efi_update_capsule() from update capsule on disk
      efi_loader: Reset system after CapsuleUpdate on disk


 lib/efi_loader/Kconfig       |   10 ++++++++++
 lib/efi_loader/efi_capsule.c |   18 +++++++++++++++++-
 2 files changed, 27 insertions(+), 1 deletion(-)

--
Masami Hiramatsu <masami.hiramatsu@linaro.org>