From dc83d234254861f142854bdf523581101c3d5c8d Mon Sep 17 00:00:00 2001 From: Andreas Sandberg Date: Mon, 22 Apr 2013 13:20:32 -0400 Subject: tests: Add support for testing KVM-based CPUs This changeset adds support for initializing a KVM VM in the BaseSystem test class and adds the following methods in run.py: require_file -- Test if a file exists and abort/skip if not. require_kvm -- Test if KVM support has been compiled into gem5 (i.e., BaseKvmCPU exists) and the KVM device exists on the host. --- tests/run.py | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) (limited to 'tests/run.py') diff --git a/tests/run.py b/tests/run.py index ae00be286..bc76717c0 100644 --- a/tests/run.py +++ b/tests/run.py @@ -44,6 +44,8 @@ import re import string from os.path import join as joinpath +import os.path +import os import m5 @@ -93,6 +95,46 @@ def require_sim_object(name, fatal=False): else: skip_test(msg) + +def require_file(path, fatal=False, mode=os.F_OK): + """Test if a file exists and abort/skip test if not. + + Arguments: + path -- File to test for. + + Keyword arguments: + fatal -- Set to True to indicate that the test should fail + instead of being skipped. + modes -- Mode to test for, default to existence. See the + Python documentation for os.access(). + """ + + if os.access(path, mode): + return + else: + msg = "Test requires '%s'" % path + if not os.path.exists(path): + msg += " which does not exist." + else: + msg += " which has incorrect permissions." + + if fatal: + m5.fatal(msg) + else: + skip_test(msg) + +def require_kvm(kvm_dev="/dev/kvm", fatal=False): + """Test if KVM is available. + + Keyword arguments: + kvm_dev -- Device to test (normally /dev/kvm) + fatal -- Set to True to indicate that the test should fail + instead of being skipped. + """ + + require_sim_object("BaseKvmCPU", fatal=fatal) + require_file(kvm_dev, fatal=fatal, mode=os.R_OK | os.W_OK) + def run_test(root): """Default run_test implementations. Scripts can override it.""" -- cgit v1.2.3