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a2c320a83e
Change-Id: I679d1499376a524bef1cfc33df995b0a719b5ac8 Signed-off-by: Paul Beesley <paul.beesley@arm.com>
51 lines
1.1 KiB
Text
51 lines
1.1 KiB
Text
/'
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' Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
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'
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' SPDX-License-Identifier: BSD-3-Clause
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'/
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@startuml
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autonumber "<b>[#]</b>"
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participant "SDEI client" as EL2
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participant EL3
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participant SDEI
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participant "RAS Driver" as RAS
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activate EL2
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EL2->EL3: **SDEI_EVENT_REGISTER**(ev, handler, ...)
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EL3->EL2: success
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EL2->EL3: **SDEI_EVENT_ENABLE**(ev)
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EL3->EL2: success
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EL2->EL3: **SDEI_PE_UNMASK**()
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EL3->EL2: 1
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... <<Business as usual>> ...
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EL3<--]: **CRITICAL EVENT**
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activate EL3 #red
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note over EL3: Critical event triage
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EL3->RAS: dispatch to handle
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deactivate EL3
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activate RAS #salmon
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note over RAS: Critical event handling
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RAS-->SDEI: sdei_dispatch_event(ev)
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deactivate RAS
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activate SDEI #salmon
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note over SDEI: Prepare SDEI dispatch
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SDEI->EL2: dispatch
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activate EL2 #salmon
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note over EL2: SDEI handler
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EL2->SDEI: **SDEI_EVENT_COMPLETE()**
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deactivate EL2
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note over SDEI: Complete SDEI dispatch
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SDEI-->RAS: return
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deactivate SDEI
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activate RAS #salmon
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RAS->EL3: error handling done
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deactivate RAS
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EL3->EL2: resumes preempted execution
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... <<Normal execution resumes>> ...
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@enduml
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