# limitations under the License.
"""QEMU utilities library."""
-from __future__ import absolute_import, division
+from __future__ import absolute_import, division
from time import time, sleep
import json
class NodeType(object):
"""Defines node types used in topology dictionaries."""
+
# Device Under Test (this node has VPP running on it)
- DUT = 'DUT'
+ DUT = "DUT"
# Traffic Generator (this node has traffic generator on it)
- TG = 'TG'
+ TG = "TG"
# Virtual Machine (this node running on DUT node)
- VM = 'VM'
+ VM = "VM"
class QemuUtils(object):
def __init__(self, qemu_id=1):
self._qemu_id = qemu_id
# Path to QEMU binary
- self._qemu_bin = '/usr/bin/qemu-system-x86_64'
+ self._qemu_bin = "/usr/bin/qemu-system-x86_64"
# QEMU Machine Protocol socket
- self._qmp_sock = '/tmp/qmp{0}.sock'.format(self._qemu_id)
+ self._qmp_sock = "/tmp/qmp{0}.sock".format(self._qemu_id)
# QEMU Guest Agent socket
- self._qga_sock = '/tmp/qga{0}.sock'.format(self._qemu_id)
+ self._qga_sock = "/tmp/qga{0}.sock".format(self._qemu_id)
# QEMU PID file
- self._pid_file = '/tmp/qemu{0}.pid'.format(self._qemu_id)
+ self._pid_file = "/tmp/qemu{0}.pid".format(self._qemu_id)
self._qemu_opt = {}
# Default 1 CPU.
- self._qemu_opt['smp'] = '-smp 1,sockets=1,cores=1,threads=1'
+ self._qemu_opt["smp"] = "-smp 1,sockets=1,cores=1,threads=1"
# Daemonize the QEMU process after initialization. Default one
# management interface.
- self._qemu_opt['options'] = '-cpu host -daemonize -enable-kvm ' \
- '-machine pc,accel=kvm,usb=off,mem-merge=off ' \
- '-net nic,macaddr=52:54:00:00:{0:02x}:ff -balloon none'\
- .format(self._qemu_id)
- self._qemu_opt['ssh_fwd_port'] = 10021 + qemu_id
+ self._qemu_opt["options"] = (
+ "-cpu host -daemonize -enable-kvm "
+ "-machine pc,accel=kvm,usb=off,mem-merge=off "
+ "-net nic,macaddr=52:54:00:00:{0:02x}:ff -balloon none".format(
+ self._qemu_id
+ )
+ )
+ self._qemu_opt["ssh_fwd_port"] = 10021 + qemu_id
# Default serial console port
- self._qemu_opt['serial_port'] = 4555 + qemu_id
+ self._qemu_opt["serial_port"] = 4555 + qemu_id
# Default 512MB virtual RAM
- self._qemu_opt['mem_size'] = 512
+ self._qemu_opt["mem_size"] = 512
# Default huge page mount point, required for Vhost-user interfaces.
- self._qemu_opt['huge_mnt'] = '/mnt/huge'
+ self._qemu_opt["huge_mnt"] = "/mnt/huge"
# Default do not allocate huge pages.
- self._qemu_opt['huge_allocate'] = False
+ self._qemu_opt["huge_allocate"] = False
# Default image for CSIT virl setup
- self._qemu_opt['disk_image'] = '/var/lib/vm/vhost-nested.img'
+ self._qemu_opt["disk_image"] = "/var/lib/vm/vhost-nested.img"
# VM node info dict
self._vm_info = {
- 'type': NodeType.VM,
- 'port': self._qemu_opt['ssh_fwd_port'],
- 'username': 'cisco',
- 'password': 'cisco',
- 'interfaces': {},
+ "type": NodeType.VM,
+ "port": self._qemu_opt["ssh_fwd_port"],
+ "username": "cisco",
+ "password": "cisco",
+ "interfaces": {},
}
# Virtio queue count
- self._qemu_opt['queues'] = 1
+ self._qemu_opt["queues"] = 1
self._vhost_id = 0
self._ssh = None
self._node = None
:type threads: int
:type sockets: int
"""
- self._qemu_opt['smp'] = \
- '-smp {},cores={},threads={},sockets={}'.format(
- cpus, cores, threads, sockets)
+ self._qemu_opt["smp"] = "-smp {},cores={},threads={},sockets={}".format(
+ cpus, cores, threads, sockets
+ )
def qemu_set_ssh_fwd_port(self, fwd_port):
"""Set host port for guest SSH forwarding.
:param fwd_port: Port number on host for guest SSH forwarding.
:type fwd_port: int
"""
- self._qemu_opt['ssh_fwd_port'] = fwd_port
- self._vm_info['port'] = fwd_port
+ self._qemu_opt["ssh_fwd_port"] = fwd_port
+ self._vm_info["port"] = fwd_port
def qemu_set_serial_port(self, port):
"""Set serial console port.
:param port: Serial console port.
:type port: int
"""
- self._qemu_opt['serial_port'] = port
+ self._qemu_opt["serial_port"] = port
def qemu_set_mem_size(self, mem_size):
"""Set virtual RAM size.
:param mem_size: RAM size in Mega Bytes.
:type mem_size: int
"""
- self._qemu_opt['mem_size'] = int(mem_size)
+ self._qemu_opt["mem_size"] = int(mem_size)
def qemu_set_huge_mnt(self, huge_mnt):
"""Set hugefile mount point.
:param huge_mnt: System hugefile mount point.
:type huge_mnt: int
"""
- self._qemu_opt['huge_mnt'] = huge_mnt
+ self._qemu_opt["huge_mnt"] = huge_mnt
def qemu_set_huge_allocate(self):
"""Set flag to allocate more huge pages if needed."""
- self._qemu_opt['huge_allocate'] = True
+ self._qemu_opt["huge_allocate"] = True
def qemu_set_disk_image(self, disk_image):
"""Set disk image.
:param disk_image: Path of the disk image.
:type disk_image: str
"""
- self._qemu_opt['disk_image'] = disk_image
+ self._qemu_opt["disk_image"] = disk_image
def qemu_set_affinity(self, *host_cpus):
"""Set qemu affinity by getting thread PIDs via QMP and taskset to list
:param host_cpus: List of CPU cores.
:type host_cpus: list
"""
- qemu_cpus = self._qemu_qmp_exec('query-cpus')['return']
+ qemu_cpus = self._qemu_qmp_exec("query-cpus")["return"]
if len(qemu_cpus) != len(host_cpus):
- logging.debug('Host CPU count {0}, Qemu Thread count {1}'.format(
- len(host_cpus), len(qemu_cpus)))
- raise ValueError('Host CPU count must match Qemu Thread count')
+ logging.debug(
+ "Host CPU count {0}, Qemu Thread count {1}".format(
+ len(host_cpus), len(qemu_cpus)
+ )
+ )
+ raise ValueError("Host CPU count must match Qemu Thread count")
for qemu_cpu, host_cpu in zip(qemu_cpus, host_cpus):
- cmd = 'taskset -pc {0} {1}'.format(host_cpu, qemu_cpu['thread_id'])
+ cmd = "taskset -pc {0} {1}".format(host_cpu, qemu_cpu["thread_id"])
(ret_code, _, stderr) = self._ssh.exec_command_sudo(cmd)
if int(ret_code) != 0:
- logging.debug('Set affinity failed {0}'.format(stderr))
- raise RuntimeError('Set affinity failed on {0}'.format(
- self._node['host']))
+ logging.debug("Set affinity failed {0}".format(stderr))
+ raise RuntimeError(
+ "Set affinity failed on {0}".format(self._node["host"])
+ )
def qemu_set_scheduler_policy(self):
"""Set scheduler policy to SCHED_RR with priority 1 for all Qemu CPU
- processes.
+ processes.
- :raises RuntimeError: Set scheduler policy failed.
+ :raises RuntimeError: Set scheduler policy failed.
"""
- qemu_cpus = self._qemu_qmp_exec('query-cpus')['return']
+ qemu_cpus = self._qemu_qmp_exec("query-cpus")["return"]
for qemu_cpu in qemu_cpus:
- cmd = 'chrt -r -p 1 {0}'.format(qemu_cpu['thread_id'])
+ cmd = "chrt -r -p 1 {0}".format(qemu_cpu["thread_id"])
(ret_code, _, stderr) = self._ssh.exec_command_sudo(cmd)
if int(ret_code) != 0:
- logging.debug('Set SCHED_RR failed {0}'.format(stderr))
- raise RuntimeError('Set SCHED_RR failed on {0}'.format(
- self._node['host']))
+ logging.debug("Set SCHED_RR failed {0}".format(stderr))
+ raise RuntimeError(
+ "Set SCHED_RR failed on {0}".format(self._node["host"])
+ )
def qemu_set_node(self, node):
"""Set node to run QEMU on.
:type node: dict
"""
self._node = node
- self._vm_info['host'] = node['host']
+ self._vm_info["host"] = node["host"]
def qemu_add_vhost_user_if(self, socket, server=True, mac=None):
"""Add Vhost-user interface.
"""
self._vhost_id += 1
# Create unix socket character device.
- chardev = ' -chardev socket,id=char{0},path={1}'.format(self._vhost_id,
- socket)
+ chardev = " -chardev socket,id=char{0},path={1}".format(self._vhost_id, socket)
if server is True:
- chardev += ',server'
- self._qemu_opt['options'] += chardev
+ chardev += ",server"
+ self._qemu_opt["options"] += chardev
# Create Vhost-user network backend.
- netdev = (' -netdev vhost-user,id=vhost{0},chardev=char{0},queues={1}'
- .format(self._vhost_id, self._qemu_opt['queues']))
- self._qemu_opt['options'] += netdev
+ netdev = " -netdev vhost-user,id=vhost{0},chardev=char{0},queues={1}".format(
+ self._vhost_id, self._qemu_opt["queues"]
+ )
+ self._qemu_opt["options"] += netdev
# If MAC is not specified use auto-generated MAC address based on
# template 52:54:00:00:<qemu_id>:<vhost_id>, e.g. vhost1 MAC of QEMU
# with ID 1 is 52:54:00:00:01:01
if mac is None:
- mac = '52:54:00:00:{0:02x}:{1:02x}'.\
- format(self._qemu_id, self._vhost_id)
- extend_options = 'mq=on,csum=off,gso=off,guest_tso4=off,'\
- 'guest_tso6=off,guest_ecn=off,mrg_rxbuf=off'
+ mac = "52:54:00:00:{0:02x}:{1:02x}".format(self._qemu_id, self._vhost_id)
+ extend_options = (
+ "mq=on,csum=off,gso=off,guest_tso4=off,"
+ "guest_tso6=off,guest_ecn=off,mrg_rxbuf=off"
+ )
# Create Virtio network device.
- device = ' -device virtio-net-pci,netdev=vhost{0},mac={1},{2}'.format(
- self._vhost_id, mac, extend_options)
- self._qemu_opt['options'] += device
+ device = " -device virtio-net-pci,netdev=vhost{0},mac={1},{2}".format(
+ self._vhost_id, mac, extend_options
+ )
+ self._qemu_opt["options"] += device
# Add interface MAC and socket to the node dict
- if_data = {'mac_address': mac, 'socket': socket}
- if_name = 'vhost{}'.format(self._vhost_id)
- self._vm_info['interfaces'][if_name] = if_data
+ if_data = {"mac_address": mac, "socket": socket}
+ if_name = "vhost{}".format(self._vhost_id)
+ self._vm_info["interfaces"][if_name] = if_data
# Add socket to the socket list
self._socks.append(socket)
response will contain the "error" keyword instead of "return".
"""
# To enter command mode, the qmp_capabilities command must be issued.
- qmp_cmd = 'echo "{ \\"execute\\": \\"qmp_capabilities\\" }' \
- '{ \\"execute\\": \\"' + cmd + \
- '\\" }" | sudo -S socat - UNIX-CONNECT:' + self._qmp_sock
+ qmp_cmd = (
+ 'echo "{ \\"execute\\": \\"qmp_capabilities\\" }'
+ '{ \\"execute\\": \\"'
+ + cmd
+ + '\\" }" | sudo -S socat - UNIX-CONNECT:'
+ + self._qmp_sock
+ )
(ret_code, stdout, stderr) = self._ssh.exec_command(qmp_cmd)
if int(ret_code) != 0:
- logging.debug('QMP execute failed {0}'.format(stderr))
- raise RuntimeError('QMP execute "{0}"'
- ' failed on {1}'.format(
- cmd, self._node['host']))
+ logging.debug("QMP execute failed {0}".format(stderr))
+ raise RuntimeError(
+ 'QMP execute "{0}"' " failed on {1}".format(cmd, self._node["host"])
+ )
logging.debug(stdout)
# Skip capabilities negotiation messages.
out_list = stdout.splitlines()
if len(out_list) < 3:
- raise RuntimeError('Invalid QMP output on {0}'.format(
- self._node['host']))
+ raise RuntimeError("Invalid QMP output on {0}".format(self._node["host"]))
return json.loads(out_list[2])
def _qemu_qga_flush(self):
- """Flush the QGA parser state
- """
- qga_cmd = '(printf "\xFF"; sleep 1) | ' \
- 'sudo -S socat - UNIX-CONNECT:' + \
- self._qga_sock
+ """Flush the QGA parser state"""
+ qga_cmd = (
+ '(printf "\xFF"; sleep 1) | '
+ "sudo -S socat - UNIX-CONNECT:" + self._qga_sock
+ )
# TODO: probably need something else
(ret_code, stdout, stderr) = self._ssh.exec_command(qga_cmd)
if int(ret_code) != 0:
- logging.debug('QGA execute failed {0}'.format(stderr))
- raise RuntimeError('QGA execute "{0}" '
- 'failed on {1}'.format(qga_cmd,
- self._node['host']))
+ logging.debug("QGA execute failed {0}".format(stderr))
+ raise RuntimeError(
+ 'QGA execute "{0}" ' "failed on {1}".format(qga_cmd, self._node["host"])
+ )
logging.debug(stdout)
if not stdout:
return {}
- return json.loads(stdout.split('\n', 1)[0])
+ return json.loads(stdout.split("\n", 1)[0])
def _qemu_qga_exec(self, cmd):
"""Execute QGA command.
:param cmd: QGA command to execute.
:type cmd: str
"""
- qga_cmd = '(echo "{ \\"execute\\": \\"' + \
- cmd + \
- '\\" }"; sleep 1) | sudo -S socat - UNIX-CONNECT:' + \
- self._qga_sock
+ qga_cmd = (
+ '(echo "{ \\"execute\\": \\"'
+ + cmd
+ + '\\" }"; sleep 1) | sudo -S socat - UNIX-CONNECT:'
+ + self._qga_sock
+ )
(ret_code, stdout, stderr) = self._ssh.exec_command(qga_cmd)
if int(ret_code) != 0:
- logging.debug('QGA execute failed {0}'.format(stderr))
- raise RuntimeError('QGA execute "{0}"'
- ' failed on {1}'.format(
- cmd, self._node['host']))
+ logging.debug("QGA execute failed {0}".format(stderr))
+ raise RuntimeError(
+ 'QGA execute "{0}"' " failed on {1}".format(cmd, self._node["host"])
+ )
logging.debug(stdout)
if not stdout:
return {}
- return json.loads(stdout.split('\n', 1)[0])
+ return json.loads(stdout.split("\n", 1)[0])
def _wait_until_vm_boot(self, timeout=60):
"""Wait until QEMU VM is booted.
start = time()
while True:
if time() - start > timeout:
- raise RuntimeError('timeout, VM {0} not booted on {1}'.format(
- self._qemu_opt['disk_image'], self._node['host']))
+ raise RuntimeError(
+ "timeout, VM {0} not booted on {1}".format(
+ self._qemu_opt["disk_image"], self._node["host"]
+ )
+ )
out = None
try:
self._qemu_qga_flush()
- out = self._qemu_qga_exec('guest-ping')
+ out = self._qemu_qga_exec("guest-ping")
except ValueError:
- logging.debug(
- 'QGA guest-ping unexpected output {}'.format(out))
+ logging.debug("QGA guest-ping unexpected output {}".format(out))
# Empty output - VM not booted yet
if not out:
sleep(5)
# Non-error return - VM booted
- elif out.get('return') is not None:
+ elif out.get("return") is not None:
break
# Skip error and wait
- elif out.get('error') is not None:
+ elif out.get("error") is not None:
sleep(5)
else:
# If there is an unexpected output from QGA guest-info, try
# again until timeout.
- logging.debug(
- 'QGA guest-ping unexpected output {}'.format(out))
+ logging.debug("QGA guest-ping unexpected output {}".format(out))
logging.debug(
- 'VM {0} booted on {1}'.format(self._qemu_opt['disk_image'],
- self._node['host']))
+ "VM {0} booted on {1}".format(
+ self._qemu_opt["disk_image"], self._node["host"]
+ )
+ )
def _update_vm_interfaces(self):
"""Update interface names in VM node dict."""
# Send guest-network-get-interfaces command via QGA, output example:
# {"return": [{"name": "eth0", "hardware-address": "52:54:00:00:04:01"},
# {"name": "eth1", "hardware-address": "52:54:00:00:04:02"}]}
- out = self._qemu_qga_exec('guest-network-get-interfaces')
- interfaces = out.get('return')
+ out = self._qemu_qga_exec("guest-network-get-interfaces")
+ interfaces = out.get("return")
mac_name = {}
if not interfaces:
raise RuntimeError(
- 'Get VM {0} interface list failed on {1}'.format(
- self._qemu_opt['disk_image'], self._node['host']))
+ "Get VM {0} interface list failed on {1}".format(
+ self._qemu_opt["disk_image"], self._node["host"]
+ )
+ )
# Create MAC-name dict
for interface in interfaces:
- if 'hardware-address' not in interface:
+ if "hardware-address" not in interface:
continue
- mac_name[interface['hardware-address']] = interface['name']
+ mac_name[interface["hardware-address"]] = interface["name"]
# Match interface by MAC and save interface name
- for interface in self._vm_info['interfaces'].values():
- mac = interface.get('mac_address')
+ for interface in self._vm_info["interfaces"].values():
+ mac = interface.get("mac_address")
if_name = mac_name.get(mac)
if if_name is None:
- logging.debug(
- 'Interface name for MAC {} not found'.format(mac))
+ logging.debug("Interface name for MAC {} not found".format(mac))
else:
- interface['name'] = if_name
+ interface["name"] = if_name
def _huge_page_check(self, allocate=False):
"""Huge page check."""
- huge_mnt = self._qemu_opt.get('huge_mnt')
- mem_size = self._qemu_opt.get('mem_size')
+ huge_mnt = self._qemu_opt.get("huge_mnt")
+ mem_size = self._qemu_opt.get("mem_size")
# Get huge pages information
huge_size = self._get_huge_page_size()
if allocate:
mem_needed = abs((huge_free * huge_size) - (mem_size * 1024))
huge_to_allocate = ((mem_needed // huge_size) * 2) + huge_total
- max_map_count = huge_to_allocate*4
+ max_map_count = huge_to_allocate * 4
# Increase maximum number of memory map areas a
# process may have
- cmd = \
- 'echo "{0}" | sudo tee /proc/sys/vm/max_map_count'.format(
- max_map_count)
+ cmd = 'echo "{0}" | sudo tee /proc/sys/vm/max_map_count'.format(
+ max_map_count
+ )
(ret_code, _, stderr) = self._ssh.exec_command_sudo(cmd)
# Increase hugepage count
- cmd = \
- 'echo "{0}" | sudo tee /proc/sys/vm/nr_hugepages'.format(
- huge_to_allocate)
+ cmd = 'echo "{0}" | sudo tee /proc/sys/vm/nr_hugepages'.format(
+ huge_to_allocate
+ )
(ret_code, _, stderr) = self._ssh.exec_command_sudo(cmd)
if int(ret_code) != 0:
- logging.debug(
- 'Mount huge pages failed {0}'.format(stderr))
+ logging.debug("Mount huge pages failed {0}".format(stderr))
raise RuntimeError(
- 'Mount huge pages failed on {0}'.format(
- self._node['host']))
+ "Mount huge pages failed on {0}".format(self._node["host"])
+ )
# If we do not want to allocate dynamicaly end with error
else:
raise RuntimeError(
- 'Not enough free huge pages: {0}, '
- '{1} MB'.format(huge_free, huge_free * huge_size)
+ "Not enough free huge pages: {0}, "
+ "{1} MB".format(huge_free, huge_free * huge_size)
)
# Check if huge pages mount point exist
has_huge_mnt = False
- (_, output, _) = self._ssh.exec_command('cat /proc/mounts')
+ (_, output, _) = self._ssh.exec_command("cat /proc/mounts")
for line in output.splitlines():
# Try to find something like:
# none /mnt/huge hugetlbfs rw,relatime,pagesize=2048k 0 0
mount = line.split()
- if mount[2] == 'hugetlbfs' and mount[1] == huge_mnt:
+ if mount[2] == "hugetlbfs" and mount[1] == huge_mnt:
has_huge_mnt = True
break
# If huge page mount point not exist create one
if not has_huge_mnt:
- cmd = 'mkdir -p {0}'.format(huge_mnt)
+ cmd = "mkdir -p {0}".format(huge_mnt)
(ret_code, _, stderr) = self._ssh.exec_command_sudo(cmd)
if int(ret_code) != 0:
- logging.debug('Create mount dir failed: {0}'.format(stderr))
- raise RuntimeError('Create mount dir failed on {0}'.format(
- self._node['host']))
- cmd = 'mount -t hugetlbfs -o pagesize=2048k none {0}'.format(
- huge_mnt)
+ logging.debug("Create mount dir failed: {0}".format(stderr))
+ raise RuntimeError(
+ "Create mount dir failed on {0}".format(self._node["host"])
+ )
+ cmd = "mount -t hugetlbfs -o pagesize=2048k none {0}".format(huge_mnt)
(ret_code, _, stderr) = self._ssh.exec_command_sudo(cmd)
if int(ret_code) != 0:
- logging.debug('Mount huge pages failed {0}'.format(stderr))
- raise RuntimeError('Mount huge pages failed on {0}'.format(
- self._node['host']))
+ logging.debug("Mount huge pages failed {0}".format(stderr))
+ raise RuntimeError(
+ "Mount huge pages failed on {0}".format(self._node["host"])
+ )
def _get_huge_page_size(self):
"""Get default size of huge pages in system.
try:
huge_size = int(out)
except ValueError:
- logging.debug('Reading huge page size information failed')
+ logging.debug("Reading huge page size information failed")
else:
break
else:
- raise RuntimeError('Getting huge page size information failed.')
+ raise RuntimeError("Getting huge page size information failed.")
return huge_size
def _get_huge_page_free(self, huge_size):
"""
# TODO: add numa aware option
# TODO: remove to dedicated library
- cmd_huge_free = 'cat /sys/kernel/mm/hugepages/hugepages-{0}kB/'\
- 'free_hugepages'.format(huge_size)
+ cmd_huge_free = (
+ "cat /sys/kernel/mm/hugepages/hugepages-{0}kB/"
+ "free_hugepages".format(huge_size)
+ )
for _ in range(3):
(ret, out, _) = self._ssh.exec_command_sudo(cmd_huge_free)
if ret == 0:
try:
huge_free = int(out)
except ValueError:
- logging.debug(
- 'Reading free huge pages information failed')
+ logging.debug("Reading free huge pages information failed")
else:
break
else:
- raise RuntimeError('Getting free huge pages information failed.')
+ raise RuntimeError("Getting free huge pages information failed.")
return huge_free
def _get_huge_page_total(self, huge_size):
"""
# TODO: add numa aware option
# TODO: remove to dedicated library
- cmd_huge_total = 'cat /sys/kernel/mm/hugepages/hugepages-{0}kB/'\
- 'nr_hugepages'.format(huge_size)
+ cmd_huge_total = (
+ "cat /sys/kernel/mm/hugepages/hugepages-{0}kB/"
+ "nr_hugepages".format(huge_size)
+ )
for _ in range(3):
(ret, out, _) = self._ssh.exec_command_sudo(cmd_huge_total)
if ret == 0:
try:
huge_total = int(out)
except ValueError:
- logging.debug(
- 'Reading total huge pages information failed')
+ logging.debug("Reading total huge pages information failed")
else:
break
else:
- raise RuntimeError('Getting total huge pages information failed.')
+ raise RuntimeError("Getting total huge pages information failed.")
return huge_total
def qemu_start(self):
.. warning:: Starts only one VM on the node.
"""
# SSH forwarding
- ssh_fwd = '-net user,hostfwd=tcp::{0}-:22'.format(
- self._qemu_opt.get('ssh_fwd_port'))
+ ssh_fwd = "-net user,hostfwd=tcp::{0}-:22".format(
+ self._qemu_opt.get("ssh_fwd_port")
+ )
# Memory and huge pages
- mem = '-object memory-backend-file,id=mem,size={0}M,mem-path={1},' \
- 'share=on -m {0} -numa node,memdev=mem'.format(
- self._qemu_opt.get('mem_size'), self._qemu_opt.get('huge_mnt'))
+ mem = (
+ "-object memory-backend-file,id=mem,size={0}M,mem-path={1},"
+ "share=on -m {0} -numa node,memdev=mem".format(
+ self._qemu_opt.get("mem_size"), self._qemu_opt.get("huge_mnt")
+ )
+ )
# By default check only if hugepages are available.
# If 'huge_allocate' is set to true try to allocate as well.
- self._huge_page_check(allocate=self._qemu_opt.get('huge_allocate'))
+ self._huge_page_check(allocate=self._qemu_opt.get("huge_allocate"))
# Disk option
- drive = '-drive file={0},format=raw,cache=none,if=virtio'.format(
- self._qemu_opt.get('disk_image'))
+ drive = "-drive file={0},format=raw,cache=none,if=virtio".format(
+ self._qemu_opt.get("disk_image")
+ )
# Setup QMP via unix socket
- qmp = '-qmp unix:{0},server,nowait'.format(self._qmp_sock)
+ qmp = "-qmp unix:{0},server,nowait".format(self._qmp_sock)
# Setup serial console
- serial = '-chardev socket,host=127.0.0.1,port={0},id=gnc0,server,' \
- 'nowait -device isa-serial,chardev=gnc0'.format(
- self._qemu_opt.get('serial_port'))
+ serial = (
+ "-chardev socket,host=127.0.0.1,port={0},id=gnc0,server,"
+ "nowait -device isa-serial,chardev=gnc0".format(
+ self._qemu_opt.get("serial_port")
+ )
+ )
# Setup QGA via chardev (unix socket) and isa-serial channel
- qga = '-chardev socket,path={0},server,nowait,id=qga0 ' \
- '-device isa-serial,chardev=qga0'.format(self._qga_sock)
+ qga = (
+ "-chardev socket,path={0},server,nowait,id=qga0 "
+ "-device isa-serial,chardev=qga0".format(self._qga_sock)
+ )
# Graphic setup
- graphic = '-monitor none -display none -vga none'
+ graphic = "-monitor none -display none -vga none"
# PID file
- pid = '-pidfile {}'.format(self._pid_file)
+ pid = "-pidfile {}".format(self._pid_file)
# Run QEMU
- cmd = '{0} {1} {2} {3} {4} {5} {6} {7} {8} {9} {10}'.format(
- self._qemu_bin, self._qemu_opt.get('smp'), mem, ssh_fwd,
- self._qemu_opt.get('options'),
- drive, qmp, serial, qga, graphic, pid)
+ cmd = "{0} {1} {2} {3} {4} {5} {6} {7} {8} {9} {10}".format(
+ self._qemu_bin,
+ self._qemu_opt.get("smp"),
+ mem,
+ ssh_fwd,
+ self._qemu_opt.get("options"),
+ drive,
+ qmp,
+ serial,
+ qga,
+ graphic,
+ pid,
+ )
(ret_code, _, stderr) = self._ssh.exec_command_sudo(cmd, timeout=300)
if int(ret_code) != 0:
- logging.debug('QEMU start failed {0}'.format(stderr))
- raise RuntimeError('QEMU start failed on {0}'.format(
- self._node['host']))
- logging.debug('QEMU running')
+ logging.debug("QEMU start failed {0}".format(stderr))
+ raise RuntimeError("QEMU start failed on {0}".format(self._node["host"]))
+ logging.debug("QEMU running")
# Wait until VM boot
try:
self._wait_until_vm_boot()
def qemu_quit(self):
"""Quit the QEMU emulator."""
- out = self._qemu_qmp_exec('quit')
- err = out.get('error')
+ out = self._qemu_qmp_exec("quit")
+ err = out.get("error")
if err is not None:
- raise RuntimeError('QEMU quit failed on {0}, error: {1}'.format(
- self._node['host'], json.dumps(err)))
+ raise RuntimeError(
+ "QEMU quit failed on {0}, error: {1}".format(
+ self._node["host"], json.dumps(err)
+ )
+ )
def qemu_system_powerdown(self):
"""Power down the system (if supported)."""
- out = self._qemu_qmp_exec('system_powerdown')
- err = out.get('error')
+ out = self._qemu_qmp_exec("system_powerdown")
+ err = out.get("error")
if err is not None:
raise RuntimeError(
- 'QEMU system powerdown failed on {0}, '
- 'error: {1}'.format(self._node['host'], json.dumps(err))
+ "QEMU system powerdown failed on {0}, "
+ "error: {1}".format(self._node["host"], json.dumps(err))
)
def qemu_system_reset(self):
"""Reset the system."""
- out = self._qemu_qmp_exec('system_reset')
- err = out.get('error')
+ out = self._qemu_qmp_exec("system_reset")
+ err = out.get("error")
if err is not None:
raise RuntimeError(
- 'QEMU system reset failed on {0}, '
- 'error: {1}'.format(self._node['host'], json.dumps(err)))
+ "QEMU system reset failed on {0}, "
+ "error: {1}".format(self._node["host"], json.dumps(err))
+ )
def qemu_kill(self):
"""Kill qemu process."""
# Note: in QEMU start phase there are 3 QEMU processes because we
# daemonize QEMU
- self._ssh.exec_command_sudo('chmod +r {}'.format(self._pid_file))
- self._ssh.exec_command_sudo('kill -SIGKILL $(cat {})'
- .format(self._pid_file))
+ self._ssh.exec_command_sudo("chmod +r {}".format(self._pid_file))
+ self._ssh.exec_command_sudo("kill -SIGKILL $(cat {})".format(self._pid_file))
# Delete PID file
- cmd = 'rm -f {}'.format(self._pid_file)
+ cmd = "rm -f {}".format(self._pid_file)
self._ssh.exec_command_sudo(cmd)
def qemu_kill_all(self, node=None):
"""
if node:
self.qemu_set_node(node)
- self._ssh.exec_command_sudo('pkill -SIGKILL qemu')
+ self._ssh.exec_command_sudo("pkill -SIGKILL qemu")
def qemu_clear_socks(self):
"""Remove all sockets created by QEMU."""
# If serial console port still open kill process
- cmd = 'fuser -k {}/tcp'.format(self._qemu_opt.get('serial_port'))
+ cmd = "fuser -k {}/tcp".format(self._qemu_opt.get("serial_port"))
self._ssh.exec_command_sudo(cmd)
# Delete all created sockets
for sock in self._socks:
- cmd = 'rm -f {}'.format(sock)
+ cmd = "rm -f {}".format(sock)
self._ssh.exec_command_sudo(cmd)
def qemu_system_status(self):
:return: VM status.
:rtype: str
"""
- out = self._qemu_qmp_exec('query-status')
- ret = out.get('return')
+ out = self._qemu_qmp_exec("query-status")
+ ret = out.get("return")
if ret is not None:
- return ret.get('status')
+ return ret.get("status")
else:
- err = out.get('error')
+ err = out.get("error")
raise RuntimeError(
- 'QEMU query-status failed on {0}, '
- 'error: {1}'.format(self._node['host'], json.dumps(err)))
+ "QEMU query-status failed on {0}, "
+ "error: {1}".format(self._node["host"], json.dumps(err))
+ )
@staticmethod
def build_qemu(node, force_install=False, apply_patch=False):
:raises: RuntimeError if building QEMU failed.
"""
- directory = ' --directory={0}'.format(Constants.QEMU_INSTALL_DIR)
- version = ' --version={0}'.format(Constants.QEMU_INSTALL_VERSION)
- force = ' --force' if force_install else ''
- patch = ' --patch' if apply_patch else ''
-
- (ret_code, stdout, stderr) = VPPUtil. \
- exec_command(
- "sudo -E sh -c '{0}/{1}/qemu_build.sh{2}{3}{4}{5}'".
- format(Constants.REMOTE_FW_DIR, Constants.RESOURCES_LIB_SH,
- version, directory, force, patch), 1000)
+ directory = " --directory={0}".format(Constants.QEMU_INSTALL_DIR)
+ version = " --version={0}".format(Constants.QEMU_INSTALL_VERSION)
+ force = " --force" if force_install else ""
+ patch = " --patch" if apply_patch else ""
+
+ (ret_code, stdout, stderr) = VPPUtil.exec_command(
+ "sudo -E sh -c '{0}/{1}/qemu_build.sh{2}{3}{4}{5}'".format(
+ Constants.REMOTE_FW_DIR,
+ Constants.RESOURCES_LIB_SH,
+ version,
+ directory,
+ force,
+ patch,
+ ),
+ 1000,
+ )
if int(ret_code) != 0:
- logging.debug('QEMU build failed {0}'.format(stdout + stderr))
- raise RuntimeError('QEMU build failed on {0}'.format(node['host']))
+ logging.debug("QEMU build failed {0}".format(stdout + stderr))
+ raise RuntimeError("QEMU build failed on {0}".format(node["host"]))
Code Review / vpp.git / blobdiff