[PATCH 00/14] Refactor SDEI client driver
Gavin Shan
gshan at redhat.com
Mon Jul 6 01:47:18 EDT 2020
This series bases on 5.8-rc4 and refactors the SDEI client driver.
It's the preparatory work of virtualizing SDEI afterwords. The series
is organized as below:
* PATCH[1-11] refactors and clean up the code. They shouldn't cause
any functional changes.
* PATCH[12] exposes "struct sdei_event", which will be dereferenced
on virtualizing SDEI. After it's applied, the SDEI event is identified
by the instance of "struct sdei_event" instead of event number.
* PATCH[13] retrieves the signaled property of the SDEI event when it's
populated. It's needed by SDEI virtualization afterwards.
* PATCH[14] exposes API (sdei_event_get_info()), which is needed by SDEI
virtualization either.
Testing
=======
I have the SDEI virtualization code implemented as part of KVM module. With
that, the SDEI event can be registered/unregistered/enabled/disabled. Also,
the SDEI event can be injected from host and the guest handler runs properly.
Gavin Shan (14):
drivers/firmware/sdei: Remove sdei_is_err()
drivers/firmware/sdei: Common block for failing path in
sdei_event_create()
drivers/firmware/sdei: Dereference SDEI event parameter directly
drivers/firmware/sdei: Rework sdei_init()
drivers/firmware/sdei: Remove sdei_get_conduit()
drivers/firmware/sdei: Drop redundant error message in sdei_probe()
drivers/firmware/sdei: Drop unnecessary while loop
drivers/firmware/sdei: Cleanup on cross call functions
drivers/firmware/sdei: Introduce sdei_do_local_call()
drivers/firmware/sdei: Remove _sdei_event_register()
drivers/firmware/sdei: Remove _sdei_event_unregister()
drivers/firmware/sdei: Identify event by struct sdei_event
drivers/firmware/sdei: Retrieve event signaled property on creation
drivers/firmware/sdei: Add sdei_event_get_info()
drivers/firmware/arm_sdei.c | 536 ++++++++++++++++--------------------
include/linux/arm_sdei.h | 73 +++--
2 files changed, 284 insertions(+), 325 deletions(-)
--
2.23.0
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