def preprocess(test, params, env):
"""
Preprocess all VMs and images according to the instructions in params.
Also, collect some host information, such as the KVM version.
@param test: An Autotest test object.
@param params: A dict containing all VM and image parameters.
@param env: The environment (a dict-like object).
"""
# Start tcpdump if it isn't already running
if not env.has_key("address_cache"):
env["address_cache"] = {}
if env.has_key("tcpdump") and not env["tcpdump"].is_alive():
env["tcpdump"].close()
del env["tcpdump"]
if not env.has_key("tcpdump"):
command = "/usr/sbin/tcpdump -npvi any 'dst port 68'"
logging.debug("Starting tcpdump (%s)...", command)
env["tcpdump"] = kvm_subprocess.kvm_tail(
command=command,
output_func=_update_address_cache,
output_params=(env["address_cache"],))
if kvm_utils.wait_for(lambda: not env["tcpdump"].is_alive(),
0.1, 0.1, 1.0):
logging.warn("Could not start tcpdump")
logging.warn("Status: %s" % env["tcpdump"].get_status())
logging.warn("Output:" + kvm_utils.format_str_for_message(
env["tcpdump"].get_output()))
# Destroy and remove VMs that are no longer needed in the environment
requested_vms = kvm_utils.get_sub_dict_names(params, "vms")
for key in env.keys():
vm = env[key]
if not kvm_utils.is_vm(vm):
continue
if not vm.name in requested_vms:
logging.debug("VM '%s' found in environment but not required for"
" test; removing it..." % vm.name)
vm.destroy()
del env[key]
# Execute any pre_commands
if params.get("pre_command"):
process_command(test, params, env, params.get("pre_command"),
int(params.get("pre_command_timeout", "600")),
params.get("pre_command_noncritical") == "yes")
# Preprocess all VMs and images
process(test, params, env, preprocess_image, preprocess_vm)
# Get the KVM kernel module version and write it as a keyval
logging.debug("Fetching KVM module version...")
if os.path.exists("/dev/kvm"):
kvm_version = os.uname()[2]
try:
file = open("/sys/module/kvm/version", "r")
kvm_version = file.read().strip()
file.close()
except:
pass
else:
kvm_version = "Unknown"
logging.debug("KVM module not loaded")
logging.debug("KVM version: %s" % kvm_version)
test.write_test_keyval({"kvm_version": kvm_version})
# Get the KVM userspace version and write it as a keyval
logging.debug("Fetching KVM userspace version...")
qemu_path = kvm_utils.get_path(test.bindir, params.get("qemu_binary",
"qemu"))
version_line = commands.getoutput("%s -help | head -n 1" % qemu_path)
exp = re.compile("[Vv]ersion .*?,")
match = exp.search(version_line)
if match:
kvm_userspace_version = " ".join(match.group().split()[1:]).strip(",")
else:
kvm_userspace_version = "Unknown"
logging.debug("Could not fetch KVM userspace version")
logging.debug("KVM userspace version: %s" % kvm_userspace_version)
test.write_test_keyval({"kvm_userspace_version": kvm_userspace_version})
def preprocess(test, params, env):
"""
Preprocess all VMs and images according to the instructions in params.
Also, collect some host information, such as the KVM version.
@param test: An Autotest test object.
@param params: A dict containing all VM and image parameters.
@param env: The environment (a dict-like object).
"""
# Destroy and remove VMs that are no longer needed in the environment
requested_vms = kvm_utils.get_sub_dict_names(params, "vms")
for key in env.keys():
vm = env[key]
if not kvm_utils.is_vm(vm):
continue
if not vm.name in requested_vms:
logging.debug("VM '%s' found in environment but not required for" " test; removing it..." % vm.name)
vm.destroy()
del env[key]
# Execute any pre_commands
if params.get("pre_command"):
process_command(
test,
params,
env,
params.get("pre_command"),
int(params.get("pre_command_timeout", "600")),
params.get("pre_command_noncritical") == "yes",
)
# Preprocess all VMs and images
process(test, params, env, preprocess_image, preprocess_vm)
# Get the KVM kernel module version and write it as a keyval
logging.debug("Fetching KVM module version...")
if os.path.exists("/dev/kvm"):
kvm_version = os.uname()[2]
try:
file = open("/sys/module/kvm/version", "r")
kvm_version = file.read().strip()
file.close()
except:
pass
else:
kvm_version = "Unknown"
logging.debug("KVM module not loaded")
logging.debug("KVM version: %s" % kvm_version)
test.write_test_keyval({"kvm_version": kvm_version})
# Get the KVM userspace version and write it as a keyval
logging.debug("Fetching KVM userspace version...")
qemu_path = os.path.join(test.bindir, "qemu")
version_line = commands.getoutput("%s -help | head -n 1" % qemu_path)
exp = re.compile("[Vv]ersion .*?,")
match = exp.search(version_line)
if match:
kvm_userspace_version = " ".join(match.group().split()[1:]).strip(",")
else:
kvm_userspace_version = "Unknown"
logging.debug("Could not fetch KVM userspace version")
logging.debug("KVM userspace version: %s" % kvm_userspace_version)
test.write_test_keyval({"kvm_userspace_version": kvm_userspace_version})