cpuid: add rhel64|qemu13 check_models test

Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
---
v2:
  * rebased on top of tree where there is no subtests.cfg.example
  * s/kvm/qemu/ in pathnames and test config
  * Change some errors types to a more suitable ones

qemu/tests/cfg/qemu_cpu.cfg

+- qemu_cpu:
+    virt_test_type = qemu
+    type = cpuid
+    start_vm = "no"
+    smp = 1
+    variants:
+        - rhel64.kvm.check_models:
+            cpu_models = "qemu64 phenom core2duo kvm64 qemu32"
+            cpu_models += " coreduo 486 pentium pentium2"
+            cpu_models += " pentium3 athlon n270 Conroe Penryn"
+            cpu_models += " Nehalem Westmere SandyBridge Haswell"
+            cpu_models += " Opteron_G1 Opteron_G2 Opteron_G3"
+            cpu_models += " Opteron_G4 Opteron_G5"
+            cpu_models += " cpu64-rhel6 cpu64-rhel5"
+            test_type = "test_qemu_cpu_models_list"
+        - qemu13.kvm.check_models:
+            cpu_models = "qemu64 phenom core2duo kvm64 qemu32"
+            cpu_models += " kvm32 coreduo 486 pentium pentium2"
+            cpu_models += " pentium3 athlon n270 Conroe Penryn"
+            cpu_models += " Nehalem Westmere SandyBridge Haswell"
+            cpu_models += " Opteron_G1 Opteron_G2 Opteron_G3"
+            cpu_models += " Opteron_G4 Opteron_G5"
+            test_type = "test_qemu_cpu_models_list"

qemu/tests/cpuid.py

+"""
+Group of cpuid tests for X86 CPU
+"""
+import logging, re, sys, traceback, os
+from autotest.client.shared import error, utils
+from autotest.client.shared import test as test_module
+from virttest import utils_misc, env_process
+
+
+def run_cpuid(test, params, env):
+    """
+    Boot guest with different cpu_models and cpu flags and check if guest works correctly.
+
+    @param test: kvm test object.
+    @param params: Dictionary with the test parameters.
+    @param env: Dictionary with test environment.
+    """
+    qemu_binary = utils_misc.get_path('.', params.get("qemu_binary", "qemu"))
+
+    class MiniSubtest(test_module.Subtest):
+        """
+        subtest base class for actual tests
+        """
+        def __new__(cls, *args, **kargs):
+            self = test.__new__(cls)
+            ret = None
+            if args is None:
+                args = []
+            try:
+                ret = self.test(*args, **kargs)
+            finally:
+                if hasattr(self, "clean"):
+                    self.clean()
+            return ret
+
+        def clean(self):
+            """
+            cleans up running VM instance
+            """
+            if (hasattr(self, "vm")):
+                vm = getattr(self, "vm")
+                if vm.is_alive():
+                    vm.pause()
+                    vm.destroy(gracefully=False)
+
+        def test(self):
+            """
+            stub for actual test code
+            """
+            raise error.TestFail("test() must be redifined in subtest")
+
+    def print_exception(called_object):
+        """
+        print error including stack trace
+        """
+        exc_type, exc_value, exc_traceback = sys.exc_info()
+        logging.error("In function (" + called_object.__name__ + "):")
+        logging.error("Call from:\n" +
+                      traceback.format_stack()[-2][:-1])
+        logging.error("Exception from:\n" +
+                      "".join(traceback.format_exception(
+                                              exc_type, exc_value,
+                                              exc_traceback.tb_next)))
+
+    def extract_qemu_cpu_models(qemu_cpu_help_text):
+        """
+        Get all cpu models from qemu -cpu help text.
+
+        @param qemu_cpu_help_text: text produced by <qemu> -cpu ?
+        @return: list of cpu models
+        """
+
+        cpu_re = re.compile("x86\s+\[?([a-zA-Z0-9_-]+)\]?.*\n")
+        return cpu_re.findall(qemu_cpu_help_text)
+
+    class test_qemu_cpu_models_list(MiniSubtest):
+        """
+        check CPU models returned by <qemu> -cpu ? are what is expected
+        """
+        def test(self):
+            """
+            test method
+            """
+            if params.get("cpu_models") is None:
+                raise error.TestNAError("define cpu_models parameter to check "
+                                        "supported CPU models list")
+
+            cmd = qemu_binary + " -cpu ?"
+            result = utils.run(cmd)
+
+            qemu_models = extract_qemu_cpu_models(result.stdout)
+            cpu_models = params.get("cpu_models").split()
+            missing = set(cpu_models) - set(qemu_models)
+            if missing:
+                raise error.TestFail("CPU models %s are not in output "
+                                     "of command %s\n%s" %
+                                     (missing, cmd, result.stdout))
+            added = set(qemu_models) - set(cpu_models)
+            if added:
+                raise error.TestFail("Unexpected CPU models %s are in output "
+                                     "of command %s\n%s" %
+                                     (added, cmd, result.stdout))
+
+
+    # subtests runner
+    test_type = params.get("test_type")
+    failed = []
+    if test_type in locals():
+        tests_group = locals()[test_type]
+        try:
+            tests_group()
+        except:
+            print_exception(tests_group)
+            failed.append(test_type)
+    else:
+        raise error.TestError("Test group '%s' is not defined in"
+                              " test" % test_type)
+
+    if failed != []:
+        raise error.TestFail("Test of cpu models %s failed." %
+                              (str(failed)))