46 lines
966 B
Plaintext
46 lines
966 B
Plaintext
|
/'
|
||
|
' Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
|
||
|
'
|
||
|
' SPDX-License-Identifier: BSD-3-Clause
|
||
|
'/
|
||
|
|
||
|
@startuml
|
||
|
|
||
|
autonumber "<b>[#]</b>"
|
||
|
participant "SDEI client" as EL2
|
||
|
participant EL3
|
||
|
participant SEL1
|
||
|
|
||
|
activate EL2
|
||
|
EL2->EL3: **SDEI_EVENT_REGISTER**(ev, handler, ...)
|
||
|
EL3->EL2: success
|
||
|
EL2->EL3: **SDEI_EVENT_ENABLE**(ev)
|
||
|
EL3->EL2: success
|
||
|
EL2->EL3: **SDEI_PE_UNMASK**()
|
||
|
EL3->EL2: 1
|
||
|
|
||
|
... <<Business as usual>> ...
|
||
|
|
||
|
EL3<--]: **CRITICAL EVENT**
|
||
|
activate EL3 #red
|
||
|
note over EL3: Critical event triage
|
||
|
EL3->SEL1: dispatch
|
||
|
activate SEL1 #salmon
|
||
|
note over SEL1: Critical event handling
|
||
|
SEL1->EL3: done
|
||
|
deactivate SEL1
|
||
|
EL3-->EL3: sdei_dispatch_event(ev)
|
||
|
note over EL3: Prepare SDEI dispatch
|
||
|
EL3->EL2: dispatch
|
||
|
activate EL2 #salmon
|
||
|
note over EL2: SDEI handler
|
||
|
EL2->EL3: **SDEI_EVENT_COMPLETE()**
|
||
|
deactivate EL2
|
||
|
note over EL3: Complete SDEI dispatch
|
||
|
EL3->EL2: resumes preempted execution
|
||
|
deactivate EL3
|
||
|
|
||
|
... <<Normal execution resumes>> ...
|
||
|
|
||
|
@enduml
|