"""QEMU utilities library."""
-from time import time, sleep
+from time import sleep
+from string import Template
import json
from re import match
# Disable due to pylint bug
from distutils.version import StrictVersion
from robot.api import logger
-from resources.libraries.python.ssh import exec_cmd, exec_cmd_no_error
from resources.libraries.python.Constants import Constants
+from resources.libraries.python.DpdkUtil import DpdkUtil
from resources.libraries.python.DUTSetup import DUTSetup
+from resources.libraries.python.OptionString import OptionString
+from resources.libraries.python.VppConfigGenerator import VppConfigGenerator
+from resources.libraries.python.VPPUtil import VPPUtil
+from resources.libraries.python.ssh import exec_cmd, exec_cmd_no_error
from resources.libraries.python.topology import NodeType, Topology
-__all__ = ["QemuOptions", "QemuUtils"]
-
-
-class QemuOptions(object):
- """QEMU option class.
-
- The class can handle input parameters or parameters that acts as QEMU
- command line parameters. The only variable is a list of dictionaries
- where dictionaries can be added multiple times. This emulates the QEMU
- behavior where one command line parameter can be used multiple times (1..N).
- Example can be device or object (so it is not an issue to have one memory
- block of 2G and and second memory block of 512M but from other numa).
-
- Class does support get value or string representation that will return
- space separated, dash prefixed string of key value pairs used for command
- line.
- """
+__all__ = ["QemuUtils"]
- # Use one instance of class per tests.
- ROBOT_LIBRARY_SCOPE = 'TEST CASE'
-
- def __init__(self):
- self.variables = list()
-
- def add(self, variable, value):
- """Add parameter to the list.
-
- :param variable: QEMU parameter.
- :param value: Parameter value.
- :type variable: str
- :type value: str or int
- """
- self.variables.append({str(variable): value})
-
- def get(self, variable):
- """Get parameter of variable(s) from list that matches input value.
-
- :param variable: QEMU parameter to get.
- :type variable: str
- :returns: List of values or value that matches input parameter.
- :rtype: list or str
- """
- selected = [d[variable] for d in self.variables if variable in d]
- return selected if len(selected) > 1 else selected[0]
-
- def get_values(self):
- """Get all values from dict items in list.
-
- :returns: List of all dictionary values.
- :rtype: list
- """
- return [d.values()[0] for d in self.variables]
-
- def __str__(self):
- """Return space separated string of key value pairs.
-
- :returns: Space separated string of key value pairs.
- :rtype: str
- """
- return " ".join(["-{k} {v}".format(k=d.keys()[0], v=d.values()[0])
- for d in self.variables])
class QemuUtils(object):
"""QEMU utilities."""
# Use one instance of class per tests.
ROBOT_LIBRARY_SCOPE = 'TEST CASE'
- def __init__(self, node=None, qemu_id=1, smp=1, mem=512, vnf=None,
- img='/var/lib/vm/vhost-nested.img', bin_path='/usr/bin'):
+ def __init__(self, node, qemu_id=1, smp=1, mem=512, vnf=None,
+ img=Constants.QEMU_VM_IMAGE):
"""Initialize QemuUtil class.
:param node: Node to run QEMU on.
:param mem: Amount of memory.
:param vnf: Network function workload.
:param img: QEMU disk image or kernel image path.
- :param bin_path: QEMU binary path.
:type node: dict
:type qemu_id: int
:type smp: int
:type mem: int
:type vnf: str
:type img: str
- :type bin_path: str
"""
self._vhost_id = 0
+ self._node = node
self._vm_info = {
+ 'host': node['host'],
'type': NodeType.VM,
'port': 10021 + qemu_id,
'serial': 4555 + qemu_id,
'password': 'cisco',
'interfaces': {},
}
- if node:
- self.qemu_set_node(node)
+ if node['port'] != 22:
+ self._vm_info['host_port'] = node['port']
+ self._vm_info['host_username'] = node['username']
+ self._vm_info['host_password'] = node['password']
# Input Options.
- self._opt = QemuOptions()
- self._opt.add('qemu_id', qemu_id)
- self._opt.add('bin_path', bin_path)
- self._opt.add('mem', int(mem))
- self._opt.add('smp', int(smp))
- self._opt.add('img', img)
- self._opt.add('vnf', vnf)
+ self._opt = dict()
+ self._opt['qemu_id'] = qemu_id
+ self._opt['mem'] = int(mem)
+ self._opt['smp'] = int(smp)
+ self._opt['img'] = img
+ self._opt['vnf'] = vnf
# Temporary files.
- self._temp = QemuOptions()
- self._temp.add('pid', '/var/run/qemu_{id}.pid'.format(id=qemu_id))
- # Computed parameters for QEMU command line.
+ self._temp = dict()
+ self._temp['pidfile'] = '/var/run/qemu_{id}.pid'.format(id=qemu_id)
if '/var/lib/vm/' in img:
- self._opt.add('vm_type', 'nestedvm')
- self._temp.add('qmp', '/var/run/qmp_{id}.sock'.format(id=qemu_id))
- self._temp.add('qga', '/var/run/qga_{id}.sock'.format(id=qemu_id))
+ self._opt['vm_type'] = 'nestedvm'
+ self._temp['qmp'] = '/var/run/qmp_{id}.sock'.format(id=qemu_id)
+ self._temp['qga'] = '/var/run/qga_{id}.sock'.format(id=qemu_id)
+ elif '/opt/boot/vmlinuz' in img:
+ self._opt['vm_type'] = 'kernelvm'
+ self._temp['log'] = '/tmp/serial_{id}.log'.format(id=qemu_id)
+ self._temp['ini'] = '/etc/vm_init_{id}.conf'.format(id=qemu_id)
else:
raise RuntimeError('QEMU: Unknown VM image option!')
- self._params = QemuOptions()
+ # Computed parameters for QEMU command line.
+ self._params = OptionString(prefix='-')
self.add_params()
def add_params(self):
"""Set QEMU command line parameters."""
self.add_default_params()
- if self._opt.get('vm_type') == 'nestedvm':
+ if self._opt.get('vm_type', '') == 'nestedvm':
self.add_nestedvm_params()
+ elif self._opt.get('vm_type', '') == 'kernelvm':
+ self.add_kernelvm_params()
else:
raise RuntimeError('QEMU: Unsupported VM type!')
def add_default_params(self):
"""Set default QEMU command line parameters."""
- self._params.add('daemonize', '')
- self._params.add('nodefaults', '')
- self._params.add('name', 'vnf{qemu},debug-threads=on'.
- format(qemu=self._opt.get('qemu_id')))
- self._params.add('no-user-config', '')
- self._params.add('monitor', 'none')
- self._params.add('display', 'none')
- self._params.add('vga', 'none')
- self._params.add('enable-kvm', '')
- self._params.add('pidfile', '{pid}'.
- format(pid=self._temp.get('pid')))
- self._params.add('cpu', 'host')
- self._params.add('machine', 'pc,accel=kvm,usb=off,mem-merge=off')
- self._params.add('smp', '{smp},sockets=1,cores={smp},threads=1'.
- format(smp=self._opt.get('smp')))
- self._params.add('object',
- 'memory-backend-file,id=mem,size={mem}M,'
- 'mem-path=/mnt/huge,share=on'.
- format(mem=self._opt.get('mem')))
- self._params.add('m', '{mem}M'.
- format(mem=self._opt.get('mem')))
- self._params.add('numa', 'node,memdev=mem')
- self._params.add('balloon', 'none')
+ self._params.add('daemonize')
+ self._params.add('nodefaults')
+ self._params.add_with_value('name', 'vnf{qemu},debug-threads=on'.format(
+ qemu=self._opt.get('qemu_id')))
+ self._params.add('no-user-config')
+ self._params.add_with_value('monitor', 'none')
+ self._params.add_with_value('display', 'none')
+ self._params.add_with_value('vga', 'none')
+ self._params.add('enable-kvm')
+ self._params.add_with_value('pidfile', self._temp.get('pidfile'))
+ self._params.add_with_value('cpu', 'host')
+ self._params.add_with_value(
+ 'machine', 'pc,accel=kvm,usb=off,mem-merge=off')
+ self._params.add_with_value(
+ 'smp', '{smp},sockets=1,cores={smp},threads=1'.format(
+ smp=self._opt.get('smp')))
+ self._params.add_with_value(
+ 'object', 'memory-backend-file,id=mem,size={mem}M,'
+ 'mem-path=/dev/hugepages,share=on'.format(mem=self._opt.get('mem')))
+ self._params.add_with_value(
+ 'm', '{mem}M'.format(mem=self._opt.get('mem')))
+ self._params.add_with_value('numa', 'node,memdev=mem')
+ self._params.add_with_value('balloon', 'none')
def add_nestedvm_params(self):
"""Set NestedVM QEMU parameters."""
- self._params.add('net', 'nic,macaddr=52:54:00:00:{qemu:02x}:ff'.
- format(qemu=self._opt.get('qemu_id')))
- self._params.add('net', 'user,hostfwd=tcp::{info[port]}-:22'.
- format(info=self._vm_info))
+ self._params.add_with_value(
+ 'net', 'nic,macaddr=52:54:00:00:{qemu:02x}:ff'.format(
+ qemu=self._opt.get('qemu_id')))
+ self._params.add_with_value(
+ 'net', 'user,hostfwd=tcp::{info[port]}-:22'.format(
+ info=self._vm_info))
# TODO: Remove try except after fully migrated to Bionic or
# qemu_set_node is removed.
try:
if self.qemu_version(version='2.10') else ''
except AttributeError:
locking = ''
- self._params.add('drive',
- 'file={img},format=raw,cache=none,if=virtio{locking}'.
- format(img=self._opt.get('img'), locking=locking))
- self._params.add('qmp', 'unix:{qmp},server,nowait'.
- format(qmp=self._temp.get('qmp')))
- self._params.add('chardev', 'socket,host=127.0.0.1,port={info[serial]},'
- 'id=gnc0,server,nowait'.format(info=self._vm_info))
- self._params.add('device', 'isa-serial,chardev=gnc0')
- self._params.add('chardev',
- 'socket,path={qga},server,nowait,id=qga0'.
- format(qga=self._temp.get('qga')))
- self._params.add('device', 'isa-serial,chardev=qga0')
-
- def qemu_set_node(self, node):
- """Set node to run QEMU on.
-
- :param node: Node to run QEMU on.
- :type node: dict
+ self._params.add_with_value(
+ 'drive', 'file={img},format=raw,cache=none,if=virtio{locking}'.
+ format(img=self._opt.get('img'), locking=locking))
+ self._params.add_with_value(
+ 'qmp', 'unix:{qmp},server,nowait'.format(qmp=self._temp.get('qmp')))
+ self._params.add_with_value(
+ 'chardev', 'socket,host=127.0.0.1,port={info[serial]},'
+ 'id=gnc0,server,nowait'.format(info=self._vm_info))
+ self._params.add_with_value('device', 'isa-serial,chardev=gnc0')
+ self._params.add_with_value(
+ 'chardev', 'socket,path={qga},server,nowait,id=qga0'.format(
+ qga=self._temp.get('qga')))
+ self._params.add_with_value('device', 'isa-serial,chardev=qga0')
+
+ def add_kernelvm_params(self):
+ """Set KernelVM QEMU parameters."""
+ self._params.add_with_value(
+ 'chardev', 'file,id=char0,path={log}'.format(
+ log=self._temp.get('log')))
+ self._params.add_with_value('device', 'isa-serial,chardev=char0')
+ self._params.add_with_value(
+ 'fsdev', 'local,id=root9p,path=/,security_model=none')
+ self._params.add_with_value(
+ 'device', 'virtio-9p-pci,fsdev=root9p,mount_tag=/dev/root')
+ self._params.add_with_value(
+ 'kernel', '$(readlink -m {img}* | tail -1)'.format(
+ img=self._opt.get('img')))
+ self._params.add_with_value(
+ 'append', '"ro rootfstype=9p rootflags=trans=virtio console=ttyS0'
+ ' tsc=reliable hugepages=256 init={init}"'.format(
+ init=self._temp.get('ini')))
+
+ def create_kernelvm_config_vpp(self, **kwargs):
+ """Create QEMU VPP config files.
+
+ :param kwargs: Key-value pairs to replace content of VPP configuration
+ file.
+ :type kwargs: dict
"""
- self._node = node
- self._vm_info['host'] = node['host']
- if node['port'] != 22:
- self._vm_info['host_port'] = node['port']
- self._vm_info['host_username'] = node['username']
- self._vm_info['host_password'] = node['password']
+ startup = ('/etc/vpp/vm_startup_{id}.conf'.
+ format(id=self._opt.get('qemu_id')))
+ running = ('/etc/vpp/vm_running_{id}.exec'.
+ format(id=self._opt.get('qemu_id')))
+
+ self._temp['startup'] = startup
+ self._temp['running'] = running
+ self._opt['vnf_bin'] = ('/usr/bin/vpp -c {startup}'.
+ format(startup=startup))
+
+ # Create VPP startup configuration.
+ vpp_config = VppConfigGenerator()
+ vpp_config.set_node(self._node)
+ vpp_config.add_unix_nodaemon()
+ vpp_config.add_unix_cli_listen()
+ vpp_config.add_unix_exec(running)
+ vpp_config.add_cpu_main_core('0')
+ vpp_config.add_cpu_corelist_workers('1-{smp}'.
+ format(smp=self._opt.get('smp')-1))
+ vpp_config.add_dpdk_dev('0000:00:06.0', '0000:00:07.0')
+ vpp_config.add_dpdk_log_level('debug')
+ if not kwargs['jumbo_frames']:
+ vpp_config.add_dpdk_no_multi_seg()
+ vpp_config.add_dpdk_no_tx_checksum_offload()
+ vpp_config.add_plugin('disable', 'default')
+ vpp_config.add_plugin('enable', 'dpdk_plugin.so')
+ vpp_config.write_config(startup)
+
+ # Create VPP running configuration.
+ template = '{res}/{tpl}.exec'.format(res=Constants.RESOURCES_TPL_VM,
+ tpl=self._opt.get('vnf'))
+ exec_cmd_no_error(self._node, 'rm -f {running}'.format(running=running),
+ sudo=True)
+
+ with open(template, 'r') as src_file:
+ src = Template(src_file.read())
+ exec_cmd_no_error(
+ self._node, "echo '{out}' | sudo tee {running}".format(
+ out=src.safe_substitute(**kwargs), running=running))
+
+ def create_kernelvm_config_testpmd_io(self, **kwargs):
+ """Create QEMU testpmd-io command line.
+
+ :param kwargs: Key-value pairs to construct command line parameters.
+ :type kwargs: dict
+ """
+ testpmd_path = ('{path}/{arch}-native-linuxapp-gcc/app'.
+ format(path=Constants.QEMU_VM_DPDK,
+ arch=Topology.get_node_arch(self._node)))
+ testpmd_cmd = DpdkUtil.get_testpmd_cmdline(
+ eal_corelist='0-{smp}'.format(smp=self._opt.get('smp') - 1),
+ eal_driver=False,
+ eal_in_memory=True,
+ pmd_num_mbufs=16384,
+ pmd_rxq=kwargs['queues'],
+ pmd_txq=kwargs['queues'],
+ pmd_tx_offloads=False,
+ pmd_disable_hw_vlan=False,
+ pmd_max_pkt_len=9200 if kwargs['jumbo_frames'] else None,
+ pmd_nb_cores=str(self._opt.get('smp') - 1))
+
+ self._opt['vnf_bin'] = ('{testpmd_path}/{testpmd_cmd}'.
+ format(testpmd_path=testpmd_path,
+ testpmd_cmd=testpmd_cmd))
+
+ def create_kernelvm_config_testpmd_mac(self, **kwargs):
+ """Create QEMU testpmd-mac command line.
+
+ :param kwargs: Key-value pairs to construct command line parameters.
+ :type kwargs: dict
+ """
+ testpmd_path = ('{path}/{arch}-native-linuxapp-gcc/app'.
+ format(path=Constants.QEMU_VM_DPDK,
+ arch=Topology.get_node_arch(self._node)))
+ testpmd_cmd = DpdkUtil.get_testpmd_cmdline(
+ eal_corelist='0-{smp}'.format(smp=self._opt.get('smp') - 1),
+ eal_driver=False,
+ eal_in_memory=True,
+ pmd_num_mbufs=16384,
+ pmd_fwd_mode='mac',
+ pmd_eth_peer_0='0,{mac}'.format(mac=kwargs['vif1_mac']),
+ pmd_eth_peer_1='1,{mac}'.format(mac=kwargs['vif2_mac']),
+ pmd_rxq=kwargs['queues'],
+ pmd_txq=kwargs['queues'],
+ pmd_tx_offloads=False,
+ pmd_disable_hw_vlan=False,
+ pmd_max_pkt_len=9200 if kwargs['jumbo_frames'] else None,
+ pmd_nb_cores=str(self._opt.get('smp') - 1))
+
+ self._opt['vnf_bin'] = ('{testpmd_path}/{testpmd_cmd}'.
+ format(testpmd_path=testpmd_path,
+ testpmd_cmd=testpmd_cmd))
+
+ def create_kernelvm_init(self, **kwargs):
+ """Create QEMU init script.
+
+ :param kwargs: Key-value pairs to replace content of init startup file.
+ :type kwargs: dict
+ """
+ template = '{res}/init.sh'.format(res=Constants.RESOURCES_TPL_VM)
+ init = self._temp.get('ini')
+ exec_cmd_no_error(
+ self._node, 'rm -f {init}'.format(init=init), sudo=True)
+
+ with open(template, 'r') as src_file:
+ src = Template(src_file.read())
+ exec_cmd_no_error(
+ self._node, "echo '{out}' | sudo tee {init}".format(
+ out=src.safe_substitute(**kwargs), init=init))
+ exec_cmd_no_error(
+ self._node, "chmod +x {init}".format(init=init), sudo=True)
+
+ def configure_kernelvm_vnf(self, **kwargs):
+ """Create KernelVM VNF configurations.
+
+ :param kwargs: Key-value pairs for templating configs.
+ :type kwargs: dict
+ """
+ if 'vpp' in self._opt.get('vnf'):
+ self.create_kernelvm_config_vpp(**kwargs)
+ elif 'testpmd_io' in self._opt.get('vnf'):
+ self.create_kernelvm_config_testpmd_io(**kwargs)
+ elif 'testpmd_mac' in self._opt.get('vnf'):
+ self.create_kernelvm_config_testpmd_mac(**kwargs)
+ else:
+ raise RuntimeError('QEMU: Unsupported VNF!')
+ self.create_kernelvm_init(vnf_bin=self._opt['vnf_bin'])
def get_qemu_pids(self):
"""Get QEMU CPU pids.
:returns: List of QEMU CPU pids.
:rtype: list of str
"""
- command = ("grep -rwl 'CPU' /proc/$(sudo cat {pid})/task/*/comm ".
- format(pid=self._temp.get('pid')))
- command += (r"| xargs dirname | sed -e 's/\/.*\///g'")
+ command = ("grep -rwl 'CPU' /proc/$(sudo cat {pidfile})/task/*/comm ".
+ format(pidfile=self._temp.get('pidfile')))
+ command += (r"| xargs dirname | sed -e 's/\/.*\///g' | uniq")
stdout, _ = exec_cmd_no_error(self._node, command)
return stdout.splitlines()
def qemu_set_affinity(self, *host_cpus):
"""Set qemu affinity by getting thread PIDs via QMP and taskset to list
- of CPU cores.
+ of CPU cores. Function tries to execute 3 times to avoid race condition
+ in getting thread PIDs.
:param host_cpus: List of CPU cores.
:type host_cpus: list
"""
- try:
- qemu_cpus = self.get_qemu_pids()
-
- if len(qemu_cpus) != len(host_cpus):
- raise ValueError('Host CPU count must match Qemu Thread count!')
-
- for qemu_cpu, host_cpu in zip(qemu_cpus, host_cpus):
- command = ('taskset -pc {host_cpu} {thread}'.
- format(host_cpu=host_cpu, thread=qemu_cpu))
- message = ('QEMU: Set affinity failed on {host}!'.
- format(host=self._node['host']))
- exec_cmd_no_error(self._node, command, sudo=True,
- message=message)
- except (RuntimeError, ValueError):
+ for _ in range(3):
+ try:
+ qemu_cpus = self.get_qemu_pids()
+
+ if len(qemu_cpus) != len(host_cpus):
+ sleep(1)
+ continue
+ for qemu_cpu, host_cpu in zip(qemu_cpus, host_cpus):
+ command = ('taskset -pc {host_cpu} {thread}'.
+ format(host_cpu=host_cpu, thread=qemu_cpu))
+ message = ('QEMU: Set affinity failed on {host}!'.
+ format(host=self._node['host']))
+ exec_cmd_no_error(self._node, command, sudo=True,
+ message=message)
+ break
+ except (RuntimeError, ValueError):
+ self.qemu_kill_all()
+ raise
+ else:
self.qemu_kill_all()
- raise
+ raise RuntimeError('Failed to set Qemu threads affinity!')
def qemu_set_scheduler_policy(self):
"""Set scheduler policy to SCHED_RR with priority 1 for all Qemu CPU
:type queues: int
"""
self._vhost_id += 1
- self._params.add('chardev',
- 'socket,id=char{vhost},path={socket}{server}'.
- format(vhost=self._vhost_id, socket=socket,
- server=',server' if server is True else ''))
- self._params.add('netdev',
- 'vhost-user,id=vhost{vhost},'
- 'chardev=char{vhost},queues={queues}'.
- format(vhost=self._vhost_id, queues=queues))
+ self._params.add_with_value(
+ 'chardev', 'socket,id=char{vhost},path={socket}{server}'.format(
+ vhost=self._vhost_id, socket=socket,
+ server=',server' if server is True else ''))
+ self._params.add_with_value(
+ 'netdev', 'vhost-user,id=vhost{vhost},chardev=char{vhost},'
+ 'queues={queues}'.format(vhost=self._vhost_id, queues=queues))
mac = ('52:54:00:00:{qemu:02x}:{vhost:02x}'.
format(qemu=self._opt.get('qemu_id'), vhost=self._vhost_id))
queue_size = ('rx_queue_size={queue_size},tx_queue_size={queue_size}'.
format(queue_size=queue_size)) if queue_size else ''
mbuf = 'on,host_mtu=9200'
- self._params.add('device',
- 'virtio-net-pci,netdev=vhost{vhost},'
- 'mac={mac},mq=on,vectors={vectors},csum=off,gso=off,'
- 'guest_tso4=off,guest_tso6=off,guest_ecn=off,'
- 'mrg_rxbuf={mbuf},{queue_size}'.
- format(vhost=self._vhost_id, mac=mac,
- mbuf=mbuf if jumbo_frames else 'off',
- queue_size=queue_size,
- vectors=(2 * queues + 2)))
+ self._params.add_with_value(
+ 'device', 'virtio-net-pci,netdev=vhost{vhost},mac={mac},bus=pci.0,'
+ 'addr={addr}.0,mq=on,vectors={vectors},csum=off,gso=off,'
+ 'guest_tso4=off,guest_tso6=off,guest_ecn=off,mrg_rxbuf={mbuf},'
+ '{queue_size}'.format(
+ addr=self._vhost_id+5, vhost=self._vhost_id, mac=mac,
+ mbuf=mbuf if jumbo_frames else 'off', queue_size=queue_size,
+ vectors=(2 * queues + 2)))
# Add interface MAC and socket to the node dict.
if_data = {'mac_address': mac, 'socket': socket}
if_name = 'vhost{vhost}'.format(vhost=self._vhost_id)
self._vm_info['interfaces'][if_name] = if_data
# Add socket to temporary file list.
- self._temp.add(if_name, socket)
+ self._temp[if_name] = socket
def _qemu_qmp_exec(self, cmd):
"""Execute QMP command.
format(cmd=cmd, qmp=self._temp.get('qmp')))
message = ('QMP execute "{cmd}" failed on {host}'.
format(cmd=cmd, host=self._node['host']))
- stdout, _ = exec_cmd_no_error(self._node, command, sudo=False,
- message=message)
+ stdout, _ = exec_cmd_no_error(
+ self._node, command, sudo=False, message=message)
# Skip capabilities negotiation messages.
out_list = stdout.splitlines()
if len(out_list) < 3:
- raise RuntimeError('Invalid QMP output on {host}'.
- format(host=self._node['host']))
+ raise RuntimeError(
+ 'Invalid QMP output on {host}'.format(host=self._node['host']))
return json.loads(out_list[2])
def _qemu_qga_flush(self):
'sudo -S socat - UNIX-CONNECT:{qga}'.
format(qga=self._temp.get('qga')))
message = ('QGA flush failed on {host}'.format(host=self._node['host']))
- stdout, _ = exec_cmd_no_error(self._node, command, sudo=False,
- message=message)
+ stdout, _ = exec_cmd_no_error(
+ self._node, command, sudo=False, message=message)
return json.loads(stdout.split('\n', 1)[0]) if stdout else dict()
format(cmd=cmd, qga=self._temp.get('qga')))
message = ('QGA execute "{cmd}" failed on {host}'.
format(cmd=cmd, host=self._node['host']))
- stdout, _ = exec_cmd_no_error(self._node, command, sudo=False,
- message=message)
+ stdout, _ = exec_cmd_no_error(
+ self._node, command, sudo=False, message=message)
return json.loads(stdout.split('\n', 1)[0]) if stdout else dict()
- def _wait_until_vm_boot(self, timeout=60):
- """Wait until QEMU VM is booted.
+ def _wait_until_vm_boot(self):
+ """Wait until QEMU with NestedVM is booted."""
+ if self._opt.get('vm_type') == 'nestedvm':
+ self._wait_until_nestedvm_boot()
+ self._update_vm_interfaces()
+ elif self._opt.get('vm_type') == 'kernelvm':
+ self._wait_until_kernelvm_boot()
+ else:
+ raise RuntimeError('QEMU: Unsupported VM type!')
+
+ def _wait_until_nestedvm_boot(self, retries=12):
+ """Wait until QEMU with NestedVM is booted.
First try to flush qga until there is output.
Then ping QEMU guest agent each 5s until VM booted or timeout.
- :param timeout: Waiting timeout in seconds (optional, default 60s).
- :type timeout: int
+ :param retries: Number of retries with 5s between trials.
+ :type retries: int
"""
- start = time()
- while True:
- if time() - start > timeout:
- raise RuntimeError('timeout, VM not booted on {host}'.
- format(host=self._node['host']))
+ for _ in range(retries):
out = None
try:
out = self._qemu_qga_flush()
sleep(5)
else:
break
- while True:
- if time() - start > timeout:
- raise RuntimeError('timeout, VM not booted on {host}'.
- format(host=self._node['host']))
+ else:
+ raise RuntimeError('QEMU: Timeout, VM not booted on {host}!'.
+ format(host=self._node['host']))
+ for _ in range(retries):
out = None
try:
out = self._qemu_qga_exec('guest-ping')
# again until timeout.
logger.trace('QGA guest-ping unexpected output {out}'.
format(out=out))
+ else:
+ raise RuntimeError('QEMU: Timeout, VM not booted on {host}!'.
+ format(host=self._node['host']))
+
+ def _wait_until_kernelvm_boot(self, retries=60):
+ """Wait until QEMU KernelVM is booted.
+
+ :param retries: Number of retries.
+ :type retries: int
+ """
+ vpp_ver = VPPUtil.vpp_show_version(self._node)
- logger.trace('VM booted on {host}'.format(host=self._node['host']))
+ for _ in range(retries):
+ command = ('tail -1 {log}'.format(log=self._temp.get('log')))
+ stdout = None
+ try:
+ stdout, _ = exec_cmd_no_error(self._node, command, sudo=True)
+ sleep(1)
+ except RuntimeError:
+ pass
+ if vpp_ver in stdout or 'Press enter to exit' in stdout:
+ break
+ if 'reboot: Power down' in stdout:
+ raise RuntimeError('QEMU: NF failed to run on {host}!'.
+ format(host=self._node['host']))
+ else:
+ raise RuntimeError('QEMU: Timeout, VM not booted on {host}!'.
+ format(host=self._node['host']))
def _update_vm_interfaces(self):
"""Update interface names in VM node dict."""
mac = interface.get('mac_address')
if_name = mac_name.get(mac)
if if_name is None:
- logger.trace('Interface name for MAC {mac} not found'.
- format(mac=mac))
+ logger.trace(
+ 'Interface name for MAC {mac} not found'.format(mac=mac))
else:
interface['name'] = if_name
:returns: VM node info.
:rtype: dict
"""
- DUTSetup.check_huge_page(self._node, '/mnt/huge', self._opt.get('mem'))
-
- command = ('{bin_path}/qemu-system-{arch} {params}'.
- format(bin_path=self._opt.get('bin_path'),
- arch=Topology.get_node_arch(self._node),
- params=self._params))
+ cmd_opts = OptionString()
+ cmd_opts.add('{bin_path}/qemu-system-{arch}'.format(
+ bin_path=Constants.QEMU_BIN_PATH,
+ arch=Topology.get_node_arch(self._node)))
+ cmd_opts.extend(self._params)
message = ('QEMU: Start failed on {host}!'.
format(host=self._node['host']))
-
try:
- exec_cmd_no_error(self._node, command, timeout=300, sudo=True,
- message=message)
+ DUTSetup.check_huge_page(
+ self._node, '/dev/hugepages', self._opt.get('mem'))
+
+ exec_cmd_no_error(
+ self._node, cmd_opts, timeout=300, sudo=True, message=message)
self._wait_until_vm_boot()
- # Update interface names in VM node dict.
- self._update_vm_interfaces()
except RuntimeError:
self.qemu_kill_all()
raise
def qemu_kill(self):
"""Kill qemu process."""
- exec_cmd(self._node, 'chmod +r {pid}'.
- format(pid=self._temp.get('pid')), sudo=True)
- exec_cmd(self._node, 'kill -SIGKILL $(cat {pid})'.
- format(pid=self._temp.get('pid')), sudo=True)
+ exec_cmd(self._node, 'chmod +r {pidfile}'.
+ format(pidfile=self._temp.get('pidfile')), sudo=True)
+ exec_cmd(self._node, 'kill -SIGKILL $(cat {pidfile})'.
+ format(pidfile=self._temp.get('pidfile')), sudo=True)
- for value in self._temp.get_values():
+ for value in self._temp.values():
+ exec_cmd(self._node, 'cat {value}'.format(value=value), sudo=True)
exec_cmd(self._node, 'rm -f {value}'.format(value=value), sudo=True)
- def qemu_kill_all(self, node=None):
- """Kill all qemu processes on DUT node if specified.
-
- :param node: Node to kill all QEMU processes on.
- :type node: dict
- """
- if node:
- self.qemu_set_node(node)
+ def qemu_kill_all(self):
+ """Kill all qemu processes on DUT node if specified."""
exec_cmd(self._node, 'pkill -SIGKILL qemu', sudo=True)
- for value in self._temp.get_values():
+ for value in self._temp.values():
+ exec_cmd(self._node, 'cat {value}'.format(value=value), sudo=True)
exec_cmd(self._node, 'rm -f {value}'.format(value=value), sudo=True)
def qemu_version(self, version=None):
:returns: Qemu version or Boolean if version is higher than parameter.
:rtype: str or bool
"""
- command = ('{bin_path}/qemu-system-{arch} --version'.
- format(bin_path=self._opt.get('bin_path'),
- arch=Topology.get_node_arch(self._node)))
+ command = ('{bin_path}/qemu-system-{arch} --version'.format(
+ bin_path=Constants.QEMU_BIN_PATH,
+ arch=Topology.get_node_arch(self._node)))
try:
stdout, _ = exec_cmd_no_error(self._node, command, sudo=True)
ver = match(r'QEMU emulator version ([\d.]*)', stdout).group(1)
except RuntimeError:
self.qemu_kill_all()
raise
-
- @staticmethod
- def build_qemu(node, force_install=False, apply_patch=False):
- """Build QEMU from sources.
-
- :param node: Node to build QEMU on.
- :param force_install: If True, then remove previous build.
- :param apply_patch: If True, then apply patches from qemu_patches dir.
- :type node: dict
- :type force_install: bool
- :type apply_patch: bool
- :raises RuntimeError: If building QEMU failed.
- """
- directory = (' --directory={install_dir}{patch}'.
- format(install_dir=Constants.QEMU_INSTALL_DIR,
- patch='-patch' if apply_patch else '-base'))
- version = (' --version={install_version}'.
- format(install_version=Constants.QEMU_INSTALL_VERSION))
- force = ' --force' if force_install else ''
- patch = ' --patch' if apply_patch else ''
- target_list = (' --target-list={arch}-softmmu'.
- format(arch=Topology.get_node_arch(node)))
-
- command = ("sudo -E sh -c "
- "'{fw_dir}/{lib_sh}/qemu_build.sh{version}{directory}"
- "{force}{patch}{target_list}'".
- format(fw_dir=Constants.REMOTE_FW_DIR,
- lib_sh=Constants.RESOURCES_LIB_SH,
- version=version, directory=directory, force=force,
- patch=patch, target_list=target_list))
- message = ('QEMU: Build failed on {host}!'.format(host=node['host']))
- exec_cmd_no_error(node, command, sudo=False, message=message,
- timeout=1000)
Code Review / csit.git / blobdiff