blob: 51214f536e475ea4bfa371f14a21f5901dfc0909 [file] [log] [blame]
/'
' 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