From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 11:13:47 +0200
Subject: Adding upstream version 2.8.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../diagrams/plantuml/sdei_explicit_dispatch.puml  | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 docs/resources/diagrams/plantuml/sdei_explicit_dispatch.puml

(limited to 'docs/resources/diagrams/plantuml/sdei_explicit_dispatch.puml')

diff --git a/docs/resources/diagrams/plantuml/sdei_explicit_dispatch.puml b/docs/resources/diagrams/plantuml/sdei_explicit_dispatch.puml
new file mode 100644
index 0000000..90ff23c
--- /dev/null
+++ b/docs/resources/diagrams/plantuml/sdei_explicit_dispatch.puml
@@ -0,0 +1,51 @@
+/'
+ ' Copyright (c) 2017-2018, 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
+participant "RAS Driver" as RAS
+
+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->RAS: dispatch to handle
+deactivate EL3
+activate RAS #salmon
+note over RAS: Critical event handling
+RAS-->SDEI: sdei_dispatch_event(ev)
+deactivate RAS
+activate SDEI #salmon
+note over SDEI: Prepare SDEI dispatch
+SDEI->EL2: dispatch
+activate EL2 #salmon
+note over EL2: SDEI handler
+EL2->SDEI: **SDEI_EVENT_COMPLETE()**
+deactivate EL2
+note over SDEI: Complete SDEI dispatch
+SDEI-->RAS: return
+deactivate SDEI
+activate RAS #salmon
+RAS->EL3: error handling done
+deactivate RAS
+EL3->EL2: resumes preempted execution
+
+... <<Normal execution resumes>> ...
+
+@enduml
-- 
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