From c71058cfa5ee14df2ed0e6ebc4346a872ec75eaa Mon Sep 17 00:00:00 2001
From: Zhengrong Wang <seanyukigeek@gmail.com>
Date: Mon, 14 Feb 2022 22:27:09 +0000
Subject: [PATCH] configs: Call createThreads() for FutureCPUs.

When using fast forwarding, createThreads() is not
called upon FutureCPUs. This causes segment fault
as the decoder is initialized in createThreads() and
needed when instantiating CPUs.

This commit basically fixes this by invoking
createThreads() on FutureCPUs after they are created.

Change-Id: I812d18f06878f9fc3fa2183a2c8a64d316413398
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/56812
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Luming Wang <wlm199558@126.com>
Tested-by: kokoro <noreply+kokoro@google.com>
---
 configs/common/Simulation.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configs/common/Simulation.py b/configs/common/Simulation.py
index 3b9efc0c93..24167731a1 100644
--- a/configs/common/Simulation.py
+++ b/configs/common/Simulation.py
@@ -488,6 +488,7 @@ def run(options, root, testsys, cpu_class):
                     options.indirect_bp_type)
                 switch_cpus[i].branchPred.indirectBranchPred = \
                     IndirectBPClass()
+            switch_cpus[i].createThreads()
 
         # If elastic tracing is enabled attach the elastic trace probe
         # to the switch CPUs