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authorRadhika Jagtap <radhika.jagtap@ARM.com>2015-12-07 16:42:16 -0600
committerRadhika Jagtap <radhika.jagtap@ARM.com>2015-12-07 16:42:16 -0600
commit9bd5051b6022249f95364ef30b100b69ac7e7c37 (patch)
tree81ee5797338a1ed3660093dc600156e286c82a01 /configs/example/se.py
parent8f1ca0a212ede0ecac1199027681f3c2ca9308db (diff)
downloadgem5-9bd5051b6022249f95364ef30b100b69ac7e7c37.tar.xz
config: Enable elastic trace capture and replay in se/fs
This patch adds changes to the configuration scripts to support elastic tracing and replay. The patch adds a command line option to enable elastic tracing in SE mode and FS mode. When enabled the Elastic Trace cpu probe is attached to O3CPU and a few O3 CPU parameters are tuned. The Elastic Trace probe writes out both instruction fetch and data dependency traces. The patch also enables configuring the TraceCPU to replay traces using the SE and FS script. The replay run is designed to resume from checkpoint using atomic cpu to restore state keeping it consistent with FS run flow. It then switches to TraceCPU to replay the input traces.
Diffstat (limited to 'configs/example/se.py')
-rw-r--r--configs/example/se.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/configs/example/se.py b/configs/example/se.py
index 0928482b7..1b3458709 100644
--- a/configs/example/se.py
+++ b/configs/example/se.py
@@ -58,6 +58,7 @@ import Options
import Ruby
import Simulation
import CacheConfig
+import CpuConfig
import MemConfig
from Caches import *
from cpu2000 import *
@@ -196,6 +197,11 @@ system.cpu_clk_domain = SrcClockDomain(clock = options.cpu_clock,
voltage_domain =
system.cpu_voltage_domain)
+# If elastic tracing is enabled, then configure the cpu and attach the elastic
+# trace probe
+if options.elastic_trace_en:
+ CpuConfig.config_etrace(CPUClass, system.cpu, options)
+
# All cpus belong to a common cpu_clk_domain, therefore running at a common
# frequency.
for cpu in system.cpu: