1 # Copyright (c) 2020 Cisco and/or its affiliates.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
6 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
14 """QEMU utilities library."""
19 from string import Template
20 from time import sleep
22 from robot.api import logger
24 from resources.libraries.python.Constants import Constants
25 from resources.libraries.python.DpdkUtil import DpdkUtil
26 from resources.libraries.python.DUTSetup import DUTSetup
27 from resources.libraries.python.OptionString import OptionString
28 from resources.libraries.python.ssh import exec_cmd, exec_cmd_no_error
29 from resources.libraries.python.topology import NodeType, Topology
30 from resources.libraries.python.VhostUser import VirtioFeaturesFlags
31 from resources.libraries.python.VhostUser import VirtioFeatureMask
32 from resources.libraries.python.VppConfigGenerator import VppConfigGenerator
34 __all__ = [u"QemuUtils"]
40 # Use one instance of class per tests.
41 ROBOT_LIBRARY_SCOPE = u"TEST CASE"
44 self, node, qemu_id=1, smp=1, mem=512, vnf=None,
45 img=Constants.QEMU_VM_IMAGE):
46 """Initialize QemuUtil class.
48 :param node: Node to run QEMU on.
49 :param qemu_id: QEMU identifier.
50 :param smp: Number of virtual SMP units (cores).
51 :param mem: Amount of memory.
52 :param vnf: Network function workload.
53 :param img: QEMU disk image or kernel image path.
63 self._arch = Topology.get_node_arch(self._node)
66 # Architecture specific options
67 if self._arch == u"aarch64":
68 dpdk_target = u"arm64-armv8a"
69 self._opt[u"machine_args"] = \
70 u"virt,accel=kvm,usb=off,mem-merge=off,gic-version=3"
71 self._opt[u"console"] = u"ttyAMA0"
73 dpdk_target = u"x86_64-native"
74 self._opt[u"machine_args"] = u"pc,accel=kvm,usb=off,mem-merge=off"
75 self._opt[u"console"] = u"ttyS0"
76 self._testpmd_path = f"{Constants.QEMU_VM_DPDK}/" \
77 f"{dpdk_target}-linux-gcc/app"
79 u"host": node[u"host"],
81 u"port": 10021 + qemu_id,
82 u"serial": 4555 + qemu_id,
87 if node[u"port"] != 22:
88 self._vm_info[u"host_port"] = node[u"port"]
89 self._vm_info[u"host_username"] = node[u"username"]
90 self._vm_info[u"host_password"] = node[u"password"]
92 self._opt[u"qemu_id"] = qemu_id
93 self._opt[u"mem"] = int(mem)
94 self._opt[u"smp"] = int(smp)
95 self._opt[u"img"] = img
96 self._opt[u"vnf"] = vnf
99 self._temp[u"log"] = f"/tmp/serial_{qemu_id}.log"
100 self._temp[u"pidfile"] = f"/run/qemu_{qemu_id}.pid"
101 if img == Constants.QEMU_VM_IMAGE:
102 self._temp[u"qmp"] = f"/run/qmp_{qemu_id}.sock"
103 self._temp[u"qga"] = f"/run/qga_{qemu_id}.sock"
104 elif img == Constants.QEMU_VM_KERNEL:
105 self._opt[u"img"], _ = exec_cmd_no_error(
106 node, f"ls -1 {Constants.QEMU_VM_KERNEL}* | tail -1",
107 message=u"Qemu Kernel VM image not found!"
109 self._temp[u"ini"] = f"/etc/vm_init_{qemu_id}.conf"
110 self._opt[u"initrd"], _ = exec_cmd_no_error(
111 node, f"ls -1 {Constants.QEMU_VM_KERNEL_INITRD}* | tail -1",
112 message=u"Qemu Kernel initrd image not found!"
115 raise RuntimeError(f"QEMU: Unknown VM image option: {img}")
116 # Computed parameters for QEMU command line.
117 self._params = OptionString(prefix=u"-")
119 def add_default_params(self):
120 """Set default QEMU command line parameters."""
121 self._params.add(u"daemonize")
122 self._params.add(u"nodefaults")
123 self._params.add_with_value(
124 u"name", f"vnf{self._opt.get(u'qemu_id')},debug-threads=on"
126 self._params.add(u"no-user-config")
127 self._params.add(u"nographic")
128 self._params.add(u"enable-kvm")
129 self._params.add_with_value(u"pidfile", self._temp.get(u"pidfile"))
130 self._params.add_with_value(u"cpu", u"host")
132 self._params.add_with_value(u"machine", self._opt.get(u"machine_args"))
133 self._params.add_with_value(
134 u"smp", f"{self._opt.get(u'smp')},sockets=1,"
135 f"cores={self._opt.get(u'smp')},threads=1"
137 self._params.add_with_value(
138 u"object", f"memory-backend-file,id=mem,"
139 f"size={self._opt.get(u'mem')}M,mem-path=/dev/hugepages,share=on"
141 self._params.add_with_value(u"m", f"{self._opt.get(u'mem')}M")
142 self._params.add_with_value(u"numa", u"node,memdev=mem")
143 self._params.add_with_value(u"balloon", u"none")
145 def add_net_user(self):
146 """Set managment port forwarding."""
147 self._params.add_with_value(
148 u"netdev", f"user,id=mgmt,net=172.16.255.0/24,"
149 f"hostfwd=tcp::{self._vm_info[u'port']}-:22"
151 self._params.add_with_value(
152 u"device", f"virtio-net,netdev=mgmt"
155 def add_qmp_qga(self):
156 """Set QMP, QGA management."""
157 self._params.add_with_value(
158 u"chardev", f"socket,path={self._temp.get(u'qga')},"
159 f"server,nowait,id=qga0"
161 self._params.add_with_value(u"device", u"isa-serial,chardev=qga0")
162 self._params.add_with_value(
163 u"qmp", f"unix:{self._temp.get(u'qmp')},server,nowait"
166 def add_serial(self):
167 """Set serial to file redirect."""
168 self._params.add_with_value(
169 u"chardev", f"socket,host=127.0.0.1,"
170 f"port={self._vm_info[u'serial']},id=gnc0,server,nowait")
171 self._params.add_with_value(u"device", u"isa-serial,chardev=gnc0")
172 self._params.add_with_value(
173 u"serial", f"file:{self._temp.get(u'log')}"
176 def add_drive_cdrom(self, drive_file, index=None):
179 :param drive_file: Path to drive image.
180 :param index: Drive index.
181 :type drive_file: str
184 index = f"index={index}," if index else u""
185 self._params.add_with_value(
186 u"drive", f"file={drive_file},{index}media=cdrom"
189 def add_drive(self, drive_file, drive_format):
190 """Set drive with custom format.
192 :param drive_file: Path to drive image.
193 :param drive_format: Drive image format.
194 :type drive_file: str
195 :type drive_format: str
197 self._params.add_with_value(
198 u"drive", f"file={drive_file},format={drive_format},"
199 u"cache=none,if=virtio,file.locking=off"
202 def add_kernelvm_params(self):
203 """Set KernelVM QEMU parameters."""
204 self._params.add_with_value(
205 u"serial", f"file:{self._temp.get(u'log')}"
207 self._params.add_with_value(
208 u"fsdev", u"local,id=root9p,path=/,security_model=none"
210 self._params.add_with_value(
211 u"device", u"virtio-9p-pci,fsdev=root9p,mount_tag=virtioroot"
213 self._params.add_with_value(u"kernel", f"{self._opt.get(u'img')}")
214 self._params.add_with_value(u"initrd", f"{self._opt.get(u'initrd')}")
215 self._params.add_with_value(
216 u"append", f"'ro rootfstype=9p rootflags=trans=virtio "
217 f"root=virtioroot console={self._opt.get(u'console')} "
218 f"tsc=reliable hugepages=512 "
219 f"init={self._temp.get(u'ini')} fastboot'"
222 def add_vhost_user_if(
223 self, socket, server=True, jumbo_frames=False, queue_size=None,
224 queues=1, virtio_feature_mask=None):
225 """Add Vhost-user interface.
227 :param socket: Path of the unix socket.
228 :param server: If True the socket shall be a listening socket.
229 :param jumbo_frames: Set True if jumbo frames are used in the test.
230 :param queue_size: Vring queue size.
231 :param queues: Number of queues.
232 :param virtio_feature_mask: Mask of virtio features to be enabled.
235 :type jumbo_frames: bool
236 :type queue_size: int
238 :type virtio_feature_mask: int
241 self._params.add_with_value(
242 u"chardev", f"socket,id=char{self._nic_id},"
243 f"path={socket}{u',server' if server is True else u''}"
245 self._params.add_with_value(
246 u"netdev", f"vhost-user,id=vhost{self._nic_id},"
247 f"chardev=char{self._nic_id},queues={queues}"
249 mac = f"52:54:00:00:{self._opt.get(u'qemu_id'):02x}:" \
250 f"{self._nic_id:02x}"
251 queue_size = f"rx_queue_size={queue_size},tx_queue_size={queue_size}" \
252 if queue_size else u""
253 if virtio_feature_mask is None:
257 gso = VirtioFeatureMask.is_feature_enabled(
258 virtio_feature_mask, VirtioFeaturesFlags.VIRTIO_NET_F_API_GSO)
259 csum = VirtioFeatureMask.is_feature_enabled(
260 virtio_feature_mask, VirtioFeaturesFlags.VIRTIO_NET_F_API_CSUM)
261 self._params.add_with_value(
262 u"device", f"virtio-net-pci,netdev=vhost{self._nic_id},mac={mac},"
263 f"addr={self._nic_id+5}.0,mq=on,vectors={2 * queues + 2},"
264 f"csum={u'on' if csum else u'off'},gso={u'on' if gso else u'off'},"
265 f"guest_tso4=off,guest_tso6=off,guest_ecn=off,"
269 # Add interface MAC and socket to the node dict.
270 if_data = {u"mac_address": mac, u"socket": socket}
271 if_name = f"vhost{self._nic_id}"
272 self._vm_info[u"interfaces"][if_name] = if_data
273 # Add socket to temporary file list.
274 self._temp[if_name] = socket
276 def add_vfio_pci_if(self, pci):
277 """Add VFIO PCI interface.
279 :param pci: PCI address of interface.
283 self._params.add_with_value(
284 u"device", f"vfio-pci,host={pci},addr={self._nic_id+5}.0"
287 def create_kernelvm_config_vpp(self, **kwargs):
288 """Create QEMU VPP config files.
290 :param kwargs: Key-value pairs to replace content of VPP configuration
294 startup = f"/etc/vpp/vm_startup_{self._opt.get(u'qemu_id')}.conf"
295 running = f"/etc/vpp/vm_running_{self._opt.get(u'qemu_id')}.exec"
297 self._temp[u"startup"] = startup
298 self._temp[u"running"] = running
299 self._opt[u"vnf_bin"] = f"/usr/bin/vpp -c {startup}"
301 # Create VPP startup configuration.
302 vpp_config = VppConfigGenerator()
303 vpp_config.set_node(self._node)
304 vpp_config.add_unix_nodaemon()
305 vpp_config.add_unix_cli_listen()
306 vpp_config.add_unix_exec(running)
307 vpp_config.add_socksvr()
308 vpp_config.add_main_heap_size(u"512M")
309 vpp_config.add_main_heap_page_size(u"2M")
310 vpp_config.add_statseg_size(u"512M")
311 vpp_config.add_statseg_page_size(u"2M")
312 vpp_config.add_statseg_per_node_counters(u"on")
313 vpp_config.add_buffers_per_numa(107520)
314 vpp_config.add_cpu_main_core(u"0")
315 if self._opt.get(u"smp") > 1:
316 vpp_config.add_cpu_corelist_workers(f"1-{self._opt.get(u'smp')-1}")
317 vpp_config.add_plugin(u"disable", u"default")
318 vpp_config.add_plugin(u"enable", u"ping_plugin.so")
319 if "2vfpt" in self._opt.get(u'vnf'):
320 vpp_config.add_plugin(u"enable", u"avf_plugin.so")
321 if "vhost" in self._opt.get(u'vnf'):
322 vpp_config.add_plugin(u"enable", u"dpdk_plugin.so")
323 vpp_config.add_dpdk_dev(u"0000:00:06.0", u"0000:00:07.0")
324 vpp_config.add_dpdk_dev_default_rxq(kwargs[u"queues"])
325 vpp_config.add_dpdk_log_level(u"debug")
326 if not kwargs[u"jumbo_frames"]:
327 vpp_config.add_dpdk_no_multi_seg()
328 vpp_config.add_dpdk_no_tx_checksum_offload()
329 if "ipsec" in self._opt.get(u'vnf'):
330 vpp_config.add_plugin(u"enable", u"crypto_native_plugin.so")
331 vpp_config.add_plugin(u"enable", u"crypto_ipsecmb_plugin.so")
332 vpp_config.add_plugin(u"enable", u"crypto_openssl_plugin.so")
333 if "nat" in self._opt.get(u'vnf'):
334 vpp_config.add_nat(value=u"endpoint-dependent")
335 vpp_config.add_plugin(u"enable", u"nat_plugin.so")
336 vpp_config.write_config(startup)
338 # Create VPP running configuration.
339 template = f"{Constants.RESOURCES_TPL}/vm/{self._opt.get(u'vnf')}.exec"
340 exec_cmd_no_error(self._node, f"rm -f {running}", sudo=True)
342 with open(template, u"rt") as src_file:
343 src = Template(src_file.read())
345 self._node, f"echo '{src.safe_substitute(**kwargs)}' | "
346 f"sudo tee {running}"
349 def create_kernelvm_config_testpmd_io(self, **kwargs):
350 """Create QEMU testpmd-io command line.
352 :param kwargs: Key-value pairs to construct command line parameters.
355 pmd_max_pkt_len = u"9200" if kwargs[u"jumbo_frames"] else u"1518"
356 testpmd_cmd = DpdkUtil.get_testpmd_cmdline(
357 eal_corelist=f"0-{self._opt.get(u'smp') - 1}",
359 eal_pci_whitelist0=u"0000:00:06.0",
360 eal_pci_whitelist1=u"0000:00:07.0",
366 pmd_max_pkt_len=pmd_max_pkt_len,
367 pmd_mbuf_size=u"16384",
368 pmd_rxq=kwargs[u"queues"],
369 pmd_txq=kwargs[u"queues"],
370 pmd_tx_offloads='0x0',
371 pmd_nb_cores=str(self._opt.get(u"smp") - 1)
374 self._opt[u"vnf_bin"] = f"{self._testpmd_path}/{testpmd_cmd}"
376 def create_kernelvm_config_testpmd_mac(self, **kwargs):
377 """Create QEMU testpmd-mac command line.
379 :param kwargs: Key-value pairs to construct command line parameters.
382 pmd_max_pkt_len = u"9200" if kwargs[u"jumbo_frames"] else u"1518"
383 testpmd_cmd = DpdkUtil.get_testpmd_cmdline(
384 eal_corelist=f"0-{self._opt.get(u'smp') - 1}",
386 eal_pci_whitelist0=u"0000:00:06.0",
387 eal_pci_whitelist1=u"0000:00:07.0",
393 pmd_max_pkt_len=pmd_max_pkt_len,
394 pmd_mbuf_size=u"16384",
395 pmd_eth_peer_0=f"0,{kwargs[u'vif1_mac']}",
396 pmd_eth_peer_1=f"1,{kwargs[u'vif2_mac']}",
397 pmd_rxq=kwargs[u"queues"],
398 pmd_txq=kwargs[u"queues"],
399 pmd_tx_offloads=u"0x0",
400 pmd_nb_cores=str(self._opt.get(u"smp") - 1)
403 self._opt[u"vnf_bin"] = f"{self._testpmd_path}/{testpmd_cmd}"
405 def create_kernelvm_init(self, **kwargs):
406 """Create QEMU init script.
408 :param kwargs: Key-value pairs to replace content of init startup file.
411 template = f"{Constants.RESOURCES_TPL}/vm/init.sh"
412 init = self._temp.get(u"ini")
413 exec_cmd_no_error(self._node, f"rm -f {init}", sudo=True)
415 with open(template, u"rt") as src_file:
416 src = Template(src_file.read())
418 self._node, f"echo '{src.safe_substitute(**kwargs)}' | "
421 exec_cmd_no_error(self._node, f"chmod +x {init}", sudo=True)
423 def configure_kernelvm_vnf(self, **kwargs):
424 """Create KernelVM VNF configurations.
426 :param kwargs: Key-value pairs for templating configs.
429 if u"vpp" in self._opt.get(u"vnf"):
430 self.create_kernelvm_config_vpp(**kwargs)
431 self.create_kernelvm_init(vnf_bin=self._opt.get(u"vnf_bin"))
432 elif u"testpmd_io" in self._opt.get(u"vnf"):
433 self.create_kernelvm_config_testpmd_io(**kwargs)
434 self.create_kernelvm_init(vnf_bin=self._opt.get(u"vnf_bin"))
435 elif u"testpmd_mac" in self._opt.get(u"vnf"):
436 self.create_kernelvm_config_testpmd_mac(**kwargs)
437 self.create_kernelvm_init(vnf_bin=self._opt.get(u"vnf_bin"))
439 raise RuntimeError(u"QEMU: Unsupported VNF!")
441 def get_qemu_pids(self):
442 """Get QEMU CPU pids.
444 :returns: List of QEMU CPU pids.
447 command = f"grep -rwl 'CPU' /proc/$(sudo cat " \
448 f"{self._temp.get(u'pidfile')})/task/*/comm "
449 command += r"| xargs dirname | sed -e 's/\/.*\///g' | uniq"
451 stdout, _ = exec_cmd_no_error(self._node, command)
452 return stdout.splitlines()
454 def qemu_set_affinity(self, *host_cpus):
455 """Set qemu affinity by getting thread PIDs via QMP and taskset to list
456 of CPU cores. Function tries to execute 3 times to avoid race condition
457 in getting thread PIDs.
459 :param host_cpus: List of CPU cores.
460 :type host_cpus: list
464 qemu_cpus = self.get_qemu_pids()
466 if len(qemu_cpus) != len(host_cpus):
469 for qemu_cpu, host_cpu in zip(qemu_cpus, host_cpus):
470 command = f"taskset -pc {host_cpu} {qemu_cpu}"
471 message = f"QEMU: Set affinity failed " \
472 f"on {self._node[u'host']}!"
474 self._node, command, sudo=True, message=message
477 except (RuntimeError, ValueError):
482 raise RuntimeError(u"Failed to set Qemu threads affinity!")
484 def qemu_set_scheduler_policy(self):
485 """Set scheduler policy to SCHED_RR with priority 1 for all Qemu CPU
488 :raises RuntimeError: Set scheduler policy failed.
491 qemu_cpus = self.get_qemu_pids()
493 for qemu_cpu in qemu_cpus:
494 command = f"chrt -r -p 1 {qemu_cpu}"
495 message = f"QEMU: Set SCHED_RR failed on {self._node[u'host']}"
497 self._node, command, sudo=True, message=message
499 except (RuntimeError, ValueError):
503 def _qemu_qmp_exec(self, cmd):
504 """Execute QMP command.
506 QMP is JSON based protocol which allows to control QEMU instance.
508 :param cmd: QMP command to execute.
510 :returns: Command output in python representation of JSON format. The
511 { "return": {} } response is QMP's success response. An error
512 response will contain the "error" keyword instead of "return".
514 # To enter command mode, the qmp_capabilities command must be issued.
515 command = f"echo \"{{{{ \\\"execute\\\": " \
516 f"\\\"qmp_capabilities\\\" }}}}" \
517 f"{{{{ \\\"execute\\\": \\\"{cmd}\\\" }}}}\" | " \
518 f"sudo -S socat - UNIX-CONNECT:{self._temp.get(u'qmp')}"
519 message = f"QMP execute '{cmd}' failed on {self._node[u'host']}"
521 stdout, _ = exec_cmd_no_error(
522 self._node, command, sudo=False, message=message
525 # Skip capabilities negotiation messages.
526 out_list = stdout.splitlines()
527 if len(out_list) < 3:
528 raise RuntimeError(f"Invalid QMP output on {self._node[u'host']}")
529 return json.loads(out_list[2])
531 def _qemu_qga_flush(self):
532 """Flush the QGA parser state."""
533 command = f"(printf \"\xFF\"; sleep 1) | sudo -S socat " \
534 f"- UNIX-CONNECT:{self._temp.get(u'qga')}"
535 message = f"QGA flush failed on {self._node[u'host']}"
536 stdout, _ = exec_cmd_no_error(
537 self._node, command, sudo=False, message=message
540 return json.loads(stdout.split(u"\n", 1)[0]) if stdout else dict()
542 def _qemu_qga_exec(self, cmd):
543 """Execute QGA command.
545 QGA provide access to a system-level agent via standard QMP commands.
547 :param cmd: QGA command to execute.
550 command = f"(echo \"{{{{ \\\"execute\\\": " \
551 f"\\\"{cmd}\\\" }}}}\"; sleep 1) | " \
552 f"sudo -S socat - UNIX-CONNECT:{self._temp.get(u'qga')}"
553 message = f"QGA execute '{cmd}' failed on {self._node[u'host']}"
554 stdout, _ = exec_cmd_no_error(
555 self._node, command, sudo=False, message=message
558 return json.loads(stdout.split(u"\n", 1)[0]) if stdout else dict()
560 def _wait_until_vm_boot(self):
561 """Wait until QEMU VM is booted."""
563 getattr(self, f'_wait_{self._opt["vnf"]}')()
564 except AttributeError:
567 def _wait_default(self, retries=60):
568 """Wait until QEMU with VPP is booted.
570 :param retries: Number of retries.
573 for _ in range(retries):
574 command = f"tail -1 {self._temp.get(u'log')}"
577 stdout, _ = exec_cmd_no_error(self._node, command, sudo=True)
581 if "vpp " in stdout and "built by" in stdout:
583 if u"Press enter to exit" in stdout:
585 if u"reboot: Power down" in stdout:
587 f"QEMU: NF failed to run on {self._node[u'host']}!"
591 f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
594 def _wait_nestedvm(self, retries=12):
595 """Wait until QEMU with NestedVM is booted.
597 First try to flush qga until there is output.
598 Then ping QEMU guest agent each 5s until VM booted or timeout.
600 :param retries: Number of retries with 5s between trials.
603 for _ in range(retries):
606 out = self._qemu_qga_flush()
608 logger.trace(f"QGA qga flush unexpected output {out}")
609 # Empty output - VM not booted yet
616 f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
618 for _ in range(retries):
621 out = self._qemu_qga_exec(u"guest-ping")
623 logger.trace(f"QGA guest-ping unexpected output {out}")
624 # Empty output - VM not booted yet.
627 # Non-error return - VM booted.
628 elif out.get(u"return") is not None:
630 # Skip error and wait.
631 elif out.get(u"error") is not None:
634 # If there is an unexpected output from QGA guest-info, try
635 # again until timeout.
636 logger.trace(f"QGA guest-ping unexpected output {out}")
639 f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
642 def _update_vm_interfaces(self):
643 """Update interface names in VM node dict."""
644 # Send guest-network-get-interfaces command via QGA, output example:
645 # {"return": [{"name": "eth0", "hardware-address": "52:54:00:00:04:01"},
646 # {"name": "eth1", "hardware-address": "52:54:00:00:04:02"}]}.
647 out = self._qemu_qga_exec(u"guest-network-get-interfaces")
648 interfaces = out.get(u"return")
652 f"Get VM interface list failed on {self._node[u'host']}"
654 # Create MAC-name dict.
655 for interface in interfaces:
656 if u"hardware-address" not in interface:
658 mac_name[interface[u"hardware-address"]] = interface[u"name"]
659 # Match interface by MAC and save interface name.
660 for interface in self._vm_info[u"interfaces"].values():
661 mac = interface.get(u"mac_address")
662 if_name = mac_name.get(mac)
664 logger.trace(f"Interface name for MAC {mac} not found")
666 interface[u"name"] = if_name
668 def qemu_start(self):
669 """Start QEMU and wait until VM boot.
671 :returns: VM node info.
674 cmd_opts = OptionString()
675 cmd_opts.add(f"{Constants.QEMU_BIN_PATH}/qemu-system-{self._arch}")
676 cmd_opts.extend(self._params)
677 message = f"QEMU: Start failed on {self._node[u'host']}!"
679 DUTSetup.check_huge_page(
680 self._node, u"/dev/hugepages", int(self._opt.get(u"mem")))
683 self._node, cmd_opts, timeout=300, sudo=True, message=message
685 self._wait_until_vm_boot()
692 """Kill qemu process."""
694 self._node, f"chmod +r {self._temp.get(u'pidfile')}", sudo=True
697 self._node, f"kill -SIGKILL $(cat {self._temp.get(u'pidfile')})",
701 for value in self._temp.values():
702 exec_cmd(self._node, f"cat {value}", sudo=True)
703 exec_cmd(self._node, f"rm -f {value}", sudo=True)
705 def qemu_kill_all(self):
706 """Kill all qemu processes on DUT node if specified."""
707 exec_cmd(self._node, u"pkill -SIGKILL qemu", sudo=True)
709 for value in self._temp.values():
710 exec_cmd(self._node, f"cat {value}", sudo=True)
711 exec_cmd(self._node, f"rm -f {value}", sudo=True)
713 def qemu_version(self):
714 """Return Qemu version.
716 :returns: Qemu version.
719 command = f"{Constants.QEMU_BIN_PATH}/qemu-system-{self._arch} " \
722 stdout, _ = exec_cmd_no_error(self._node, command, sudo=True)
723 return match(r"QEMU emulator version ([\d.]*)", stdout).group(1)