Bobby R. Bruce has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/50487 )
Change subject: tests: [WIP] Add KVM CPU switch tests
......................................................................
tests: [WIP] Add KVM CPU switch tests
WIP, not yet complete
Change-Id: Ief5d09084a88726fc3944e0c56f3a61a5d04ec1b
---
A tests/gem5/kvm-switch-tests/test_kvm_cpu_switch.py
1 file changed, 146 insertions(+), 0 deletions(-)
diff --git a/tests/gem5/kvm-switch-tests/test_kvm_cpu_switch.py
b/tests/gem5/kvm-switch-tests/test_kvm_cpu_switch.py
new file mode 100644
index 0000000..78008f8
--- /dev/null
+++ b/tests/gem5/kvm-switch-tests/test_kvm_cpu_switch.py
@@ -0,0 +1,146 @@
+# Copyright (c) 2021 The Regents of the University of California
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""
+The purpose of this Suite of tests is to check the gem5.components
switchable
+processor is functioning as intended; allowing switching from KVM to a more
+detailed processor.
+"""
+
+import os
+
+from testlib import *
+
+if config.bin_path:
+ resource_path = config.bin_path
+else:
+ resource_path = joinpath(absdirpath(__file__), "..", "resources")
+
+
+def test_kvm_switch(cpu: str, num_cpus: int, mem_system: str, length: str):
+
+ if not os.access("/dev/kvm", mode=os.R_OK | os.W_OK):
+ # Don't run the tests if KVM is unavailable.
+ return
+
+ name = "{}-cpu_{}-cores_{}_kvm-switch-test".format(
+ cpu, str(num_cpus), mem_system
+ )
+ verifiers = []
+
+ if mem_system == "mesi_two_level":
+ protocol_to_use = "MESI_Two_Level"
+ isa_to_use = constants.x86_tag
+ elif mem_system == "mi_example":
+ protocol_to_use = None
+ isa_to_use = constants.x86_tag
+ else:
+ protocol_to_use = None
+ isa_to_use = constants.gcn3_x86_tag
+
+ gem5_verify_config(
+ name=name,
+ verifiers=verifiers,
+ fixtures=(),
+ config=joinpath(
+ config.base_dir,
+ "tests",
+ "gem5",
+ "configs",
+ "boot_kvm_switch_exit.py",
+ ),
+ config_args=[
+ "--cpu",
+ cpu,
+ "--num-cpus",
+ str(num_cpus),
+ "--mem-system",
+ mem_system,
+ "--override-download",
+ "--resource-directory",
+ resource_path,
+ "--kernel-args=''",
+ ],
+ valid_isas=(isa_to_use,),
+ valid_hosts=constants.supported_hosts,
+ protocol=protocol_to_use,
+ length=length,
+ )
+
+
+#### The quick (pre-submit/Kokoro) tests ####
+
+test_kvm_switch(
+ cpu="atomic", num_cpus=1, mem_system="classic",
length=constants.quick_tag
+)
+test_kvm_switch(
+ cpu="classic", num_cpus=1, mem_system="classic",
length=constants.quick_tag
+)
+test_kvm_switch(
+ cpu="timing", num_cpus=1, mem_system="classic",
length=constants.quick_tag
+)
+test_kvm_switch(
+ cpu="atomic",
+ num_cpus=1,
+ mem_system="mi_example",
+ length=constants.quick_tag,
+)
+test_kvm_switch(
+ cpu="classic", num_cpus=4, mem_system="classic",
length=constants.quick_tag
+)
+test_kvm_switch(
+ cpu="timing",
+ num_cpus=4,
+ mem_system="mi_example",
+ length=constants.quick_tag,
+)
+
+### The long (nightly) tests ####
+
+test_kvm_switch(
+ cpu="atomic",
+ num_cpus=1,
+ mem_system="mesi_two_level",
+ length=constants.long_tag,
+)
+test_kvm_switch(
+ cpu="classic",
+ num_cpus=1,
+ mem_system="mesi_two_level",
+ length=constants.long_tag,
+)
+test_kvm_switch(
+ cpu="timing",
+ num_cpus=1,
+ mem_system="mesi_two_level",
+ length=constants.long_tag,
+)
+test_kvm_switch(
+ cpu="atomic",
+ num_cpus=2,
+ mem_system="mesi_two_level",
+ length=constants.long_tag,
+)
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ief5d09084a88726fc3944e0c56f3a61a5d04ec1b
Gerrit-Change-Number: 50487
Gerrit-PatchSet: 1
Gerrit-Owner: Bobby R. Bruce <bbr...@ucdavis.edu>
Gerrit-MessageType: newchange
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