This test mainly tests whether all guest cpu flags are supported by host machine.
Signed-off-by: sshang <sshang@xxxxxxxxxx>
---
client/tests/kvm/tests/cpuflags.py | 80 ++++++++++++++++++++++++++++++++
client/tests/kvm/tests_base.cfg.sample | 9 +++-
2 files changed, 88 insertions(+), 1 deletions(-)
create mode 100644 client/tests/kvm/tests/cpuflags.py
diff --git a/client/tests/kvm/tests/cpuflags.py b/client/tests/kvm/tests/cpuflags.py
new file mode 100644
index 0000000..5f51d65
--- /dev/null
+++ b/client/tests/kvm/tests/cpuflags.py
@@ -0,0 +1,80 @@
+import logging,os,commands
+from autotest_lib.client.common_lib import error
+import kvm_test_utils
+
+def run_cpuflags(test,params,env):
+ """
+ Check guest cpu extension flags supported by host
+ 1) Log into guest
+ 2) Get guest cpu information and host cpu information
+ 3) Compare with each other make sure host cpu extension flags
+ bits contain guest
+
+ @param test: kvm test object
+ @param params: Dictionary with the test parameters
+ @param env: Dictionary with test environment.
+ """
+ vm = kvm_test_utils.get_living_vm(env, params.get("main_vm"))
+ session = kvm_test_utils.wait_for_login(vm,
+ timeout=int(params.get("login_timeout", 360)))
+
+ get_cpuflags_cmd = params.get("getcpuflags")
+ s, o = session.get_command_status_output(get_cpuflags_cmd)
+ if s != 0:
+ raise error.TestFail, "Could not read guest cpu flags"
+ guest_cpuflags_list = o.splitlines()[0].split(':')[1].split()
+ host_cpuflags_list = commands.getoutput(get_cpuflags_cmd).\
+ splitlines()[0].split(':')[1].split()
+
+ logging.debug("Host flags %s" % host_cpuflags_list)
+ logging.debug("Guest flags %s" % guest_cpuflags_list)
+
+ # There are some special flags, for example 'hypervisor', 'sep',
+ # present in guests but not in the hosts, exclude these flags from
+ # comparison.
+ ban_flags_list = params.get("ban_flags").split()
+
+ guest_cpuflags_set = set(guest_cpuflags_list)
+ host_cpuflags_set = set(host_cpuflags_list)
+
+ # If the excluded flags provided by the config file that exist in the
+ # host, remove them from the ban_flags_list, because we require kvm
+ # virtualize/simulate the host.
+ if params.get("strict_check") == "yes":
+ for flag in ban_flags_list:
+ if flag in host_cpuflags_list:
+ ban_flags_list.remove(flag)
+
+ # exclude the banned flags from guest flags set.
+ for flag in ban_flags_list:
+ if flag in guest_cpuflags_set:
+ guest_cpuflags_set.remove(flag)
+
+ if guest_cpuflags_set.issubset(host_cpuflags_set):
+ logging.info("Guest cpu flags all supported by host")
+ else:
+ invalidflags_set = guest_cpuflags_set - host_cpuflags_set
+ host_cpuflags_str = str(host_cpuflags_set)[4:-1]
+ invalidflags_str = ''
+ for i in invalidflags_set:
+ if host_cpuflags_str.find(i.strip()) == -1:
+ invalidflags_str = invalidflags_str + i + ','
+
+ if invalidflags_str.strip() != '':
+ raise error.TestFail("Unsupported cpu flags by host: %s" % \
+ invalidflags_str[0:-1])
+
+ # check the extra cpuflags in guest.
+ extra_flags_set = set(params.get("extra_flags").split())
+ if extra_flags_set.issubset(guest_cpuflags_set):
+ logging.info("All extra flags are found in guest.")
+ else:
+ invalidflags_set = extra_flags_set - guest_cpuflags_set
+ invalidflags_str = ''
+ for i in invalidflags_set:
+ invalidflags_str = invalidflags_str + i + ','
+ raise error.TestFail("Unsupported extra flags by guest: %s" % \
+ invalidflags_str[0:-1])
+
+ session.close()
+
diff --git a/client/tests/kvm/tests_base.cfg.sample b/client/tests/kvm/tests_base.cfg.sample
index 040d0c3..f7dcbb6 100644
--- a/client/tests/kvm/tests_base.cfg.sample
+++ b/client/tests/kvm/tests_base.cfg.sample
@@ -300,6 +300,13 @@ variants:
shutdown_method = shell
kill_vm = yes
kill_vm_gracefully = no
+
+ - cpuflags:
+ type = cpuflags
+ getcpuflags = grep 'flags' /proc/cpuinfo
+ ban_flags = "up sep hypervisor sep_good"
+ extra_flags = ""
+ strict_check = yes
# Do not define test variants below shutdown
@@ -1001,7 +1008,7 @@ variants:
md5sum = 9fae22f2666369968a76ef59e9a81ced
-linux_s3:
+linux_s3|cpuflags:
only Linux
--
1.5.5.6
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