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GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

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lai
2026-09-06 03:52:57 +08:00
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source/trusted-firmware/trusted-firmware-a-2.8/docs/resources/diagrams/plantuml/sdei_general.puml
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/'
' 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 "SDEI interrupt source" as SDEI
activate EL2
EL2->EL3: **SDEI_INTERRUPT_BIND**(irq)
EL3->EL2: event number: ev
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>> ...
SDEI-->EL3: SDEI interrupt
activate SDEI #salmon
activate EL3 #red
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-->SDEI: EOI
deactivate SDEI
EL3->EL2: resumes preempted execution
deactivate EL3
... <<Normal execution resumes>> ...
@enduml