1 # Copyright (c) 2021 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 self._opt[u"machine_args"] = \
69 u"virt,accel=kvm,usb=off,mem-merge=off,gic-version=3"
70 self._opt[u"console"] = u"ttyAMA0"
72 self._opt[u"machine_args"] = u"pc,accel=kvm,usb=off,mem-merge=off"
73 self._opt[u"console"] = u"ttyS0"
74 self._testpmd_path = f"{Constants.QEMU_VM_DPDK}/build/app"
76 u"host": node[u"host"],
78 u"port": 10021 + qemu_id,
79 u"serial": 4555 + qemu_id,
80 u"username": 'testuser',
81 u"password": 'Csit1234',
84 if node[u"port"] != 22:
85 self._vm_info[u"host_port"] = node[u"port"]
86 self._vm_info[u"host_username"] = node[u"username"]
87 self._vm_info[u"host_password"] = node[u"password"]
89 self._opt[u"qemu_id"] = qemu_id
90 self._opt[u"mem"] = int(mem)
91 self._opt[u"smp"] = int(smp)
92 self._opt[u"img"] = img
93 self._opt[u"vnf"] = vnf
96 self._temp[u"log"] = f"/tmp/serial_{qemu_id}.log"
97 self._temp[u"pidfile"] = f"/run/qemu_{qemu_id}.pid"
98 if img == Constants.QEMU_VM_IMAGE:
99 self._temp[u"qmp"] = f"/run/qmp_{qemu_id}.sock"
100 self._temp[u"qga"] = f"/run/qga_{qemu_id}.sock"
101 elif img == Constants.QEMU_VM_KERNEL:
102 self._opt[u"img"], _ = exec_cmd_no_error(
103 node, f"ls -1 {Constants.QEMU_VM_KERNEL}* | tail -1",
104 message=u"Qemu Kernel VM image not found!"
106 self._temp[u"ini"] = f"/etc/vm_init_{qemu_id}.conf"
107 self._opt[u"initrd"], _ = exec_cmd_no_error(
108 node, f"ls -1 {Constants.QEMU_VM_KERNEL_INITRD}* | tail -1",
109 message=u"Qemu Kernel initrd image not found!"
112 raise RuntimeError(f"QEMU: Unknown VM image option: {img}")
113 # Computed parameters for QEMU command line.
114 self._params = OptionString(prefix=u"-")
116 def add_default_params(self):
117 """Set default QEMU command line parameters."""
118 self._params.add(u"daemonize")
119 self._params.add(u"nodefaults")
120 self._params.add_with_value(
121 u"name", f"vnf{self._opt.get(u'qemu_id')},debug-threads=on"
123 self._params.add(u"no-user-config")
124 self._params.add(u"nographic")
125 self._params.add(u"enable-kvm")
126 self._params.add_with_value(u"pidfile", self._temp.get(u"pidfile"))
127 self._params.add_with_value(u"cpu", u"host")
129 self._params.add_with_value(u"machine", self._opt.get(u"machine_args"))
130 self._params.add_with_value(
131 u"smp", f"{self._opt.get(u'smp')},sockets=1,"
132 f"cores={self._opt.get(u'smp')},threads=1"
134 self._params.add_with_value(
135 u"object", f"memory-backend-file,id=mem,"
136 f"size={self._opt.get(u'mem')}M,mem-path=/dev/hugepages,share=on"
138 self._params.add_with_value(u"m", f"{self._opt.get(u'mem')}M")
139 self._params.add_with_value(u"numa", u"node,memdev=mem")
141 def add_net_user(self, net="10.0.2.0/24"):
142 """Set managment port forwarding."""
143 self._params.add_with_value(
144 u"netdev", f"user,id=mgmt,net={net},"
145 f"hostfwd=tcp::{self._vm_info[u'port']}-:22"
147 self._params.add_with_value(
148 u"device", f"virtio-net,netdev=mgmt"
151 def add_qmp_qga(self):
152 """Set QMP, QGA management."""
153 self._params.add_with_value(
154 u"chardev", f"socket,path={self._temp.get(u'qga')},"
155 f"server,nowait,id=qga0"
157 self._params.add_with_value(
158 u"device", u"isa-serial,chardev=qga0"
160 self._params.add_with_value(
161 u"qmp", f"unix:{self._temp.get(u'qmp')},server,nowait"
164 def add_serial(self):
165 """Set serial to file redirect."""
166 self._params.add_with_value(
167 u"chardev", f"socket,host=127.0.0.1,"
168 f"port={self._vm_info[u'serial']},id=gnc0,server,nowait"
170 self._params.add_with_value(
171 u"device", u"isa-serial,chardev=gnc0"
173 self._params.add_with_value(
174 u"serial", f"file:{self._temp.get(u'log')}"
177 def add_drive_cdrom(self, drive_file, index=None):
180 :param drive_file: Path to drive image.
181 :param index: Drive index.
182 :type drive_file: str
185 index = f"index={index}," if index else u""
186 self._params.add_with_value(
187 u"drive", f"file={drive_file},{index}media=cdrom"
190 def add_drive(self, drive_file, drive_format):
191 """Set drive with custom format.
193 :param drive_file: Path to drive image.
194 :param drive_format: Drive image format.
195 :type drive_file: str
196 :type drive_format: str
198 self._params.add_with_value(
199 u"drive", f"file={drive_file},format={drive_format},"
200 u"cache=none,if=virtio,file.locking=off"
203 def add_kernelvm_params(self):
204 """Set KernelVM QEMU parameters."""
205 self._params.add_with_value(
206 u"serial", f"file:{self._temp.get(u'log')}"
208 self._params.add_with_value(
209 u"fsdev", u"local,id=root9p,path=/,security_model=none"
211 self._params.add_with_value(
212 u"device", u"virtio-9p-pci,fsdev=root9p,mount_tag=virtioroot"
214 self._params.add_with_value(
215 u"kernel", f"{self._opt.get(u'img')}"
217 self._params.add_with_value(
218 u"initrd", f"{self._opt.get(u'initrd')}"
220 self._params.add_with_value(
221 u"append", f"'ro rootfstype=9p rootflags=trans=virtio "
222 f"root=virtioroot console={self._opt.get(u'console')} "
223 f"tsc=reliable hugepages=512 "
224 f"init={self._temp.get(u'ini')} fastboot'"
227 def add_vhost_user_if(
228 self, socket, server=True, jumbo_frames=False, queue_size=None,
229 queues=1, virtio_feature_mask=None):
230 """Add Vhost-user interface.
232 :param socket: Path of the unix socket.
233 :param server: If True the socket shall be a listening socket.
234 :param jumbo_frames: Set True if jumbo frames are used in the test.
235 :param queue_size: Vring queue size.
236 :param queues: Number of queues.
237 :param virtio_feature_mask: Mask of virtio features to be enabled.
240 :type jumbo_frames: bool
241 :type queue_size: int
243 :type virtio_feature_mask: int
246 self._params.add_with_value(
247 u"chardev", f"socket,id=char{self._nic_id},"
248 f"path={socket}{u',server' if server is True else u''}"
250 self._params.add_with_value(
251 u"netdev", f"vhost-user,id=vhost{self._nic_id},"
252 f"chardev=char{self._nic_id},queues={queues}"
254 mac = f"52:54:00:00:{self._opt.get(u'qemu_id'):02x}:" \
255 f"{self._nic_id:02x}"
256 queue_size = f"rx_queue_size={queue_size},tx_queue_size={queue_size}" \
257 if queue_size else u""
258 gso = VirtioFeatureMask.is_feature_enabled(
259 virtio_feature_mask, VirtioFeaturesFlags.VIRTIO_NET_F_API_GSO)
260 csum = VirtioFeatureMask.is_feature_enabled(
261 virtio_feature_mask, VirtioFeaturesFlags.VIRTIO_NET_F_API_CSUM)
263 self._params.add_with_value(
264 u"device", f"virtio-net-pci,netdev=vhost{self._nic_id},mac={mac},"
265 f"addr={self._nic_id+5}.0,mq=on,vectors={2 * queues + 2},"
266 f"csum={u'on' if csum else u'off'},"
267 f"gso={u'on' if gso else u'off'},"
268 f"guest_tso4={u'on' if gso else u'off'},"
269 f"guest_tso6={u'on' if gso else u'off'},"
270 f"guest_ecn={u'on' if gso else u'off'},"
274 # Add interface MAC and socket to the node dict.
275 if_data = {u"mac_address": mac, u"socket": socket}
276 if_name = f"vhost{self._nic_id}"
277 self._vm_info[u"interfaces"][if_name] = if_data
278 # Add socket to temporary file list.
279 self._temp[if_name] = socket
281 def add_vfio_pci_if(self, pci):
282 """Add VFIO PCI interface.
284 :param pci: PCI address of interface.
288 self._params.add_with_value(
289 u"device", f"vfio-pci,host={pci},addr={self._nic_id+5}.0"
292 def create_kernelvm_config_vpp(self, **kwargs):
293 """Create QEMU VPP config files.
295 :param kwargs: Key-value pairs to replace content of VPP configuration
299 startup = f"/etc/vpp/vm_startup_{self._opt.get(u'qemu_id')}.conf"
300 running = f"/etc/vpp/vm_running_{self._opt.get(u'qemu_id')}.exec"
302 self._temp[u"startup"] = startup
303 self._temp[u"running"] = running
304 self._opt[u"vnf_bin"] = f"/usr/bin/vpp -c {startup}"
306 # Create VPP startup configuration.
307 vpp_config = VppConfigGenerator()
308 vpp_config.set_node(self._node)
309 vpp_config.add_unix_nodaemon()
310 vpp_config.add_unix_cli_listen()
311 vpp_config.add_unix_exec(running)
312 vpp_config.add_socksvr()
313 vpp_config.add_main_heap_size(u"512M")
314 vpp_config.add_main_heap_page_size(u"2M")
315 vpp_config.add_statseg_size(u"512M")
316 vpp_config.add_statseg_page_size(u"2M")
317 vpp_config.add_statseg_per_node_counters(u"on")
318 vpp_config.add_buffers_per_numa(107520)
319 vpp_config.add_cpu_main_core(u"0")
320 if self._opt.get(u"smp") > 1:
321 vpp_config.add_cpu_corelist_workers(f"1-{self._opt.get(u'smp')-1}")
322 vpp_config.add_plugin(u"disable", u"default")
323 vpp_config.add_plugin(u"enable", u"ping_plugin.so")
324 if "2vfpt" in self._opt.get(u'vnf'):
325 vpp_config.add_plugin(u"enable", u"avf_plugin.so")
326 if "vhost" in self._opt.get(u'vnf'):
327 vpp_config.add_plugin(u"enable", u"dpdk_plugin.so")
328 vpp_config.add_dpdk_dev(u"0000:00:06.0", u"0000:00:07.0")
329 vpp_config.add_dpdk_dev_default_rxq(kwargs[u"queues"])
330 vpp_config.add_dpdk_log_level(u"debug")
331 if not kwargs[u"jumbo_frames"]:
332 vpp_config.add_dpdk_no_multi_seg()
333 vpp_config.add_dpdk_no_tx_checksum_offload()
334 if "ipsec" in self._opt.get(u'vnf'):
335 vpp_config.add_plugin(u"enable", u"crypto_native_plugin.so")
336 vpp_config.add_plugin(u"enable", u"crypto_ipsecmb_plugin.so")
337 vpp_config.add_plugin(u"enable", u"crypto_openssl_plugin.so")
338 if "nat" in self._opt.get(u'vnf'):
339 vpp_config.add_nat(value=u"endpoint-dependent")
340 vpp_config.add_plugin(u"enable", u"nat_plugin.so")
341 vpp_config.write_config(startup)
343 # Create VPP running configuration.
344 template = f"{Constants.RESOURCES_TPL}/vm/{self._opt.get(u'vnf')}.exec"
345 exec_cmd_no_error(self._node, f"rm -f {running}", sudo=True)
347 with open(template, u"rt") as src_file:
348 src = Template(src_file.read())
350 self._node, f"echo '{src.safe_substitute(**kwargs)}' | "
351 f"sudo tee {running}"
354 def create_kernelvm_config_testpmd_io(self, **kwargs):
355 """Create QEMU testpmd-io command line.
357 :param kwargs: Key-value pairs to construct command line parameters.
360 pmd_max_pkt_len = u"9200" if kwargs[u"jumbo_frames"] else u"1518"
361 testpmd_cmd = DpdkUtil.get_testpmd_cmdline(
362 eal_corelist=f"0-{self._opt.get(u'smp') - 1}",
364 eal_pci_whitelist0=u"0000:00:06.0",
365 eal_pci_whitelist1=u"0000:00:07.0",
371 pmd_max_pkt_len=pmd_max_pkt_len,
372 pmd_mbuf_size=u"16384",
373 pmd_rxq=kwargs[u"queues"],
374 pmd_txq=kwargs[u"queues"],
375 pmd_tx_offloads='0x0',
376 pmd_nb_cores=str(self._opt.get(u"smp") - 1)
379 self._opt[u"vnf_bin"] = f"{self._testpmd_path}/{testpmd_cmd}"
381 def create_kernelvm_config_testpmd_mac(self, **kwargs):
382 """Create QEMU testpmd-mac command line.
384 :param kwargs: Key-value pairs to construct command line parameters.
387 pmd_max_pkt_len = u"9200" if kwargs[u"jumbo_frames"] else u"1518"
388 testpmd_cmd = DpdkUtil.get_testpmd_cmdline(
389 eal_corelist=f"0-{self._opt.get(u'smp') - 1}",
391 eal_pci_whitelist0=u"0000:00:06.0",
392 eal_pci_whitelist1=u"0000:00:07.0",
398 pmd_max_pkt_len=pmd_max_pkt_len,
399 pmd_mbuf_size=u"16384",
400 pmd_eth_peer_0=f"0,{kwargs[u'vif1_mac']}",
401 pmd_eth_peer_1=f"1,{kwargs[u'vif2_mac']}",
402 pmd_rxq=kwargs[u"queues"],
403 pmd_txq=kwargs[u"queues"],
404 pmd_tx_offloads=u"0x0",
405 pmd_nb_cores=str(self._opt.get(u"smp") - 1)
408 self._opt[u"vnf_bin"] = f"{self._testpmd_path}/{testpmd_cmd}"
410 def create_kernelvm_config_iperf3(self):
411 """Create QEMU iperf3 command line."""
412 self._opt[u"vnf_bin"] = f"mkdir /run/sshd; /usr/sbin/sshd -D -d"
414 def create_kernelvm_init(self, **kwargs):
415 """Create QEMU init script.
417 :param kwargs: Key-value pairs to replace content of init startup file.
420 init = self._temp.get(u"ini")
421 exec_cmd_no_error(self._node, f"rm -f {init}", sudo=True)
423 with open(kwargs[u"template"], u"rt") as src_file:
424 src = Template(src_file.read())
426 self._node, f"echo '{src.safe_substitute(**kwargs)}' | "
429 exec_cmd_no_error(self._node, f"chmod +x {init}", sudo=True)
431 def configure_kernelvm_vnf(self, **kwargs):
432 """Create KernelVM VNF configurations.
434 :param kwargs: Key-value pairs for templating configs.
437 if u"vpp" in self._opt.get(u"vnf"):
438 self.create_kernelvm_config_vpp(**kwargs)
439 self.create_kernelvm_init(
440 template=f"{Constants.RESOURCES_TPL}/vm/init.sh",
441 vnf_bin=self._opt.get(u"vnf_bin")
443 elif u"testpmd_io" in self._opt.get(u"vnf"):
444 self.create_kernelvm_config_testpmd_io(**kwargs)
445 self.create_kernelvm_init(
446 template=f"{Constants.RESOURCES_TPL}/vm/init.sh",
447 vnf_bin=self._opt.get(u"vnf_bin")
449 elif u"testpmd_mac" in self._opt.get(u"vnf"):
450 self.create_kernelvm_config_testpmd_mac(**kwargs)
451 self.create_kernelvm_init(
452 template=f"{Constants.RESOURCES_TPL}/vm/init.sh",
453 vnf_bin=self._opt.get(u"vnf_bin")
455 elif u"iperf3" in self._opt.get(u"vnf"):
456 qemu_id = self._opt.get(u'qemu_id') % 2
457 self.create_kernelvm_config_iperf3()
458 self.create_kernelvm_init(
459 template=f"{Constants.RESOURCES_TPL}/vm/init_iperf3.sh",
460 vnf_bin=self._opt.get(u"vnf_bin"),
461 ip_address_l=u"2.2.2.2/30" if qemu_id else u"1.1.1.1/30",
462 ip_address_r=u"2.2.2.1" if qemu_id else u"1.1.1.2",
463 ip_route_r=u"1.1.1.0/30" if qemu_id else u"2.2.2.0/30"
466 raise RuntimeError(u"QEMU: Unsupported VNF!")
468 def get_qemu_pids(self):
469 """Get QEMU CPU pids.
471 :returns: List of QEMU CPU pids.
474 command = f"grep -rwl 'CPU' /proc/$(sudo cat " \
475 f"{self._temp.get(u'pidfile')})/task/*/comm "
476 command += r"| xargs dirname | sed -e 's/\/.*\///g' | uniq"
478 stdout, _ = exec_cmd_no_error(self._node, command)
479 return stdout.splitlines()
481 def qemu_set_affinity(self, *host_cpus):
482 """Set qemu affinity by getting thread PIDs via QMP and taskset to list
483 of CPU cores. Function tries to execute 3 times to avoid race condition
484 in getting thread PIDs.
486 :param host_cpus: List of CPU cores.
487 :type host_cpus: list
491 qemu_cpus = self.get_qemu_pids()
493 if len(qemu_cpus) != len(host_cpus):
496 for qemu_cpu, host_cpu in zip(qemu_cpus, host_cpus):
497 command = f"taskset -pc {host_cpu} {qemu_cpu}"
498 message = f"QEMU: Set affinity failed " \
499 f"on {self._node[u'host']}!"
501 self._node, command, sudo=True, message=message
504 except (RuntimeError, ValueError):
509 raise RuntimeError(u"Failed to set Qemu threads affinity!")
511 def qemu_set_scheduler_policy(self):
512 """Set scheduler policy to SCHED_RR with priority 1 for all Qemu CPU
515 :raises RuntimeError: Set scheduler policy failed.
518 qemu_cpus = self.get_qemu_pids()
520 for qemu_cpu in qemu_cpus:
521 command = f"chrt -r -p 1 {qemu_cpu}"
522 message = f"QEMU: Set SCHED_RR failed on {self._node[u'host']}"
524 self._node, command, sudo=True, message=message
526 except (RuntimeError, ValueError):
530 def _qemu_qmp_exec(self, cmd):
531 """Execute QMP command.
533 QMP is JSON based protocol which allows to control QEMU instance.
535 :param cmd: QMP command to execute.
537 :returns: Command output in python representation of JSON format. The
538 { "return": {} } response is QMP's success response. An error
539 response will contain the "error" keyword instead of "return".
541 # To enter command mode, the qmp_capabilities command must be issued.
542 command = f"echo \"{{{{ \\\"execute\\\": " \
543 f"\\\"qmp_capabilities\\\" }}}}" \
544 f"{{{{ \\\"execute\\\": \\\"{cmd}\\\" }}}}\" | " \
545 f"sudo -S socat - UNIX-CONNECT:{self._temp.get(u'qmp')}"
546 message = f"QMP execute '{cmd}' failed on {self._node[u'host']}"
548 stdout, _ = exec_cmd_no_error(
549 self._node, command, sudo=False, message=message
552 # Skip capabilities negotiation messages.
553 out_list = stdout.splitlines()
554 if len(out_list) < 3:
555 raise RuntimeError(f"Invalid QMP output on {self._node[u'host']}")
556 return json.loads(out_list[2])
558 def _qemu_qga_flush(self):
559 """Flush the QGA parser state."""
560 command = f"(printf \"\xFF\"; sleep 1) | sudo -S socat " \
561 f"- UNIX-CONNECT:{self._temp.get(u'qga')}"
562 message = f"QGA flush failed on {self._node[u'host']}"
563 stdout, _ = exec_cmd_no_error(
564 self._node, command, sudo=False, message=message
567 return json.loads(stdout.split(u"\n", 1)[0]) if stdout else dict()
569 def _qemu_qga_exec(self, cmd):
570 """Execute QGA command.
572 QGA provide access to a system-level agent via standard QMP commands.
574 :param cmd: QGA command to execute.
577 command = f"(echo \"{{{{ \\\"execute\\\": " \
578 f"\\\"{cmd}\\\" }}}}\"; sleep 1) | " \
579 f"sudo -S socat - UNIX-CONNECT:{self._temp.get(u'qga')}"
580 message = f"QGA execute '{cmd}' failed on {self._node[u'host']}"
581 stdout, _ = exec_cmd_no_error(
582 self._node, command, sudo=False, message=message
585 return json.loads(stdout.split(u"\n", 1)[0]) if stdout else dict()
587 def _wait_until_vm_boot(self):
588 """Wait until QEMU VM is booted."""
590 getattr(self, f'_wait_{self._opt["vnf"]}')()
591 except AttributeError:
594 def _wait_default(self, retries=60):
595 """Wait until QEMU with VPP is booted.
597 :param retries: Number of retries.
600 for _ in range(retries):
601 command = f"tail -1 {self._temp.get(u'log')}"
604 stdout, _ = exec_cmd_no_error(self._node, command, sudo=True)
608 if "vpp " in stdout and "built by" in stdout:
610 if u"Press enter to exit" in stdout:
612 if u"reboot: Power down" in stdout:
614 f"QEMU: NF failed to run on {self._node[u'host']}!"
618 f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
621 def _wait_nestedvm(self, retries=12):
622 """Wait until QEMU with NestedVM is booted.
624 First try to flush qga until there is output.
625 Then ping QEMU guest agent each 5s until VM booted or timeout.
627 :param retries: Number of retries with 5s between trials.
630 for _ in range(retries):
633 out = self._qemu_qga_flush()
635 logger.trace(f"QGA qga flush unexpected output {out}")
636 # Empty output - VM not booted yet
643 f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
645 for _ in range(retries):
648 out = self._qemu_qga_exec(u"guest-ping")
650 logger.trace(f"QGA guest-ping unexpected output {out}")
651 # Empty output - VM not booted yet.
654 # Non-error return - VM booted.
655 elif out.get(u"return") is not None:
657 # Skip error and wait.
658 elif out.get(u"error") is not None:
661 # If there is an unexpected output from QGA guest-info, try
662 # again until timeout.
663 logger.trace(f"QGA guest-ping unexpected output {out}")
666 f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
669 def _wait_iperf3(self, retries=60):
670 """Wait until QEMU with iPerf3 is booted.
672 :param retries: Number of retries.
675 grep = u"Server listening on 0.0.0.0 port 22."
676 cmd = f"fgrep '{grep}' {self._temp.get(u'log')}"
677 message = f"QEMU: Timeout, VM not booted on {self._node[u'host']}!"
679 self._node, cmd=cmd, sudo=True, message=message, retries=retries,
683 def _update_vm_interfaces(self):
684 """Update interface names in VM node dict."""
685 # Send guest-network-get-interfaces command via QGA, output example:
686 # {"return": [{"name": "eth0", "hardware-address": "52:54:00:00:04:01"},
687 # {"name": "eth1", "hardware-address": "52:54:00:00:04:02"}]}.
688 out = self._qemu_qga_exec(u"guest-network-get-interfaces")
689 interfaces = out.get(u"return")
693 f"Get VM interface list failed on {self._node[u'host']}"
695 # Create MAC-name dict.
696 for interface in interfaces:
697 if u"hardware-address" not in interface:
699 mac_name[interface[u"hardware-address"]] = interface[u"name"]
700 # Match interface by MAC and save interface name.
701 for interface in self._vm_info[u"interfaces"].values():
702 mac = interface.get(u"mac_address")
703 if_name = mac_name.get(mac)
705 logger.trace(f"Interface name for MAC {mac} not found")
707 interface[u"name"] = if_name
709 def qemu_start(self):
710 """Start QEMU and wait until VM boot.
712 :returns: VM node info.
715 cmd_opts = OptionString()
716 cmd_opts.add(f"{Constants.QEMU_BIN_PATH}/qemu-system-{self._arch}")
717 cmd_opts.extend(self._params)
718 message = f"QEMU: Start failed on {self._node[u'host']}!"
720 DUTSetup.check_huge_page(
721 self._node, u"/dev/hugepages", int(self._opt.get(u"mem")))
724 self._node, cmd_opts, timeout=300, sudo=True, message=message
726 self._wait_until_vm_boot()
733 """Kill qemu process."""
735 self._node, f"chmod +r {self._temp.get(u'pidfile')}", sudo=True
738 self._node, f"kill -SIGKILL $(cat {self._temp.get(u'pidfile')})",
742 for value in self._temp.values():
743 exec_cmd(self._node, f"cat {value}", sudo=True)
744 exec_cmd(self._node, f"rm -f {value}", sudo=True)
746 def qemu_kill_all(self):
747 """Kill all qemu processes on DUT node if specified."""
748 exec_cmd(self._node, u"pkill -SIGKILL qemu", sudo=True)
750 for value in self._temp.values():
751 exec_cmd(self._node, f"cat {value}", sudo=True)
752 exec_cmd(self._node, f"rm -f {value}", sudo=True)
754 def qemu_version(self):
755 """Return Qemu version.
757 :returns: Qemu version.
760 command = f"{Constants.QEMU_BIN_PATH}/qemu-system-{self._arch} " \
763 stdout, _ = exec_cmd_no_error(self._node, command, sudo=True)
764 return match(r"QEMU emulator version ([\d.]*)", stdout).group(1)