-# Copyright (c) 2016 Cisco and/or its affiliates.
+# Copyright (c) 2019 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
"""QEMU utilities library."""
+from time import time, sleep
+import json
+import re
+# Disable due to pylint bug
+# pylint: disable=no-name-in-module,import-error
+from distutils.version import StrictVersion
+
from robot.api import logger
-from ssh import SSH
-from constants import Constants
+
+from resources.libraries.python.ssh import SSH, SSHTimeout
+from resources.libraries.python.constants import Constants
+from resources.libraries.python.DUTSetup import DUTSetup
+from resources.libraries.python.topology import NodeType, Topology
class QemuUtils(object):
"""QEMU utilities."""
+ def __init__(self, qemu_id=1):
+ self._qemu_id = qemu_id
+ self._vhost_id = 0
+ self._ssh = None
+ self._node = None
+ # Qemu Options
+ self._qemu_opt = {}
+ # Path to QEMU binary. Use x86_64 by default
+ self._qemu_opt['qemu_path'] = '/usr/bin/'
+ self._qemu_opt['qemu_bin'] = 'qemu-system-x86_64'
+ # QEMU Machine Protocol socket
+ self._qemu_opt['qmp_sock'] = '/tmp/qmp{0}.sock'.format(self._qemu_id)
+ # QEMU Guest Agent socket
+ self._qemu_opt['qga_sock'] = '/tmp/qga{0}.sock'.format(self._qemu_id)
+ # QEMU PID file
+ self._qemu_opt['pid_file'] = '/tmp/qemu{0}.pid'.format(self._qemu_id)
+ # Default 1 CPU.
+ 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
+ # Default serial console port
+ self._qemu_opt['serial_port'] = 4555 + qemu_id
+ # Default 512MB virtual RAM
+ self._qemu_opt['mem_size'] = 512
+ # Default huge page mount point, required for Vhost-user interfaces.
+ self._qemu_opt['huge_mnt'] = '/mnt/huge'
+ # Default do not allocate huge pages.
+ self._qemu_opt['huge_allocate'] = False
+ # Default image for CSIT virl setup
+ self._qemu_opt['disk_image'] = '/var/lib/vm/vhost-nested.img'
+ # Virtio queue count
+ self._qemu_opt['queue_count'] = 1
+ # Virtio queue size
+ self._qemu_opt['queue_size'] = None
+ # VM node info dict
+ self._vm_info = {
+ 'type': NodeType.VM,
+ 'port': self._qemu_opt['ssh_fwd_port'],
+ 'username': 'cisco',
+ 'password': 'cisco',
+ 'interfaces': {},
+ }
+ # Qemu Sockets
+ self._socks = [self._qemu_opt.get('qmp_sock'),
+ self._qemu_opt.get('qga_sock')]
+
+ def qemu_set_path(self, path):
+ """Set binary path for QEMU.
+
+ :param path: Absolute path in filesystem.
+ :type path: str
+ """
+ self._qemu_opt['qemu_path'] = path
+
+ def qemu_set_queue_count(self, count):
+ """Set number of virtio queues.
+
+ :param count: Number of virtio queues.
+ :type count: int
+ """
+ self._qemu_opt['queue_count'] = int(count)
+
+ def qemu_set_queue_size(self, size):
+ """Set RX/TX size of virtio queues.
+
+ :param size: Size of virtio queues.
+ :type size: int
+ """
+ self._qemu_opt['queue_size'] = int(size)
+
+ def qemu_set_smp(self, smp, cores, threads, sockets):
+ """Set SMP option for QEMU.
+
+ :param smp: Number of CPUs.
+ :param cores: Number of CPU cores on one socket.
+ :param threads: Number of threads on one CPU core.
+ :param sockets: Number of discrete sockets in the system.
+ :type smp: int
+ :type cores: int
+ :type threads: int
+ :type sockets: int
+ """
+ self._qemu_opt['smp'] = \
+ ('-smp {smp},cores={cores},threads={threads},sockets={sockets}'.
+ format(smp=smp, cores=cores, threads=threads, sockets=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
+
+ 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
+
+ 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)
+
+ 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
+
+ def qemu_set_huge_allocate(self):
+ """Set flag to allocate more huge pages if needed."""
+ 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
+
+ def qemu_set_affinity(self, *host_cpus):
+ """Set qemu affinity by getting thread PIDs via QMP and taskset to list
+ of CPU cores.
+
+ :param host_cpus: List of CPU cores.
+ :type host_cpus: list
+ """
+ qemu_cpus = self._qemu_qmp_exec('query-cpus')['return']
+
+ 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):
+ ret_code, _, _ = self._ssh.exec_command_sudo(
+ 'taskset -pc {host_cpu} {thread_id}'.
+ format(host_cpu=host_cpu, thread_id=qemu_cpu['thread_id']))
+ if int(ret_code) != 0:
+ raise RuntimeError('Set affinity failed on {host}'.
+ format(host=self._node['host']))
+
+ def qemu_set_scheduler_policy(self):
+ """Set scheduler policy to SCHED_RR with priority 1 for all Qemu CPU
+ processes.
+
+ :raises RuntimeError: Set scheduler policy failed.
+ """
+ qemu_cpus = self._qemu_qmp_exec('query-cpus')['return']
+
+ for qemu_cpu in qemu_cpus:
+ ret_code, _, _ = self._ssh.exec_command_sudo(
+ 'chrt -r -p 1 {thread_id}'.
+ format(thread_id=qemu_cpu['thread_id']))
+ if int(ret_code) != 0:
+ raise RuntimeError('Set SCHED_RR failed on {host}'.
+ format(host=self._node['host']))
+
+ def qemu_set_node(self, node):
+ """Set node to run QEMU on.
+
+ :param node: Node to run QEMU on.
+ :type node: dict
+ """
+ self._node = node
+ self._ssh = SSH()
+ self._ssh.connect(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']
+ arch = Topology.get_node_arch(node)
+ self._qemu_opt['qemu_bin'] = 'qemu-system-{arch}'.format(arch=arch)
+
+ def qemu_add_vhost_user_if(self, socket, server=True, mac=None,
+ jumbo_frames=False):
+ """Add Vhost-user interface.
+
+ :param socket: Path of the unix socket.
+ :param server: If True the socket shall be a listening socket.
+ :param mac: Vhost-user interface MAC address (optional, otherwise is
+ used auto-generated MAC 52:54:00:00:xx:yy).
+ :param jumbo_frames: Set True if jumbo frames are used in the test.
+ :type socket: str
+ :type server: bool
+ :type mac: str
+ :type jumbo_frames: bool
+ """
+ self._vhost_id += 1
+ # Create unix socket character device.
+ chardev = (' -chardev socket,id=char{vhost_id},path={socket}{server}'.
+ format(vhost_id=self._vhost_id,
+ socket=socket,
+ server=',server' if server is True else ''))
+ self._qemu_opt['options'] += chardev
+ # Create Vhost-user network backend.
+ netdev = (' -netdev vhost-user,id=vhost{vhost_id},'
+ 'chardev=char{vhost_id},queues={queue_count}'.
+ format(vhost_id=self._vhost_id,
+ queue_count=self._qemu_opt.get('queue_count')))
+ 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
+ mac = ('52:54:00:00:{qemu_id:02x}:{vhost_id:02x}'.
+ format(qemu_id=self._qemu_id, vhost_id=self._vhost_id))\
+ if mac is None else mac
+
+ queue_size = ('rx_queue_size={queue_size},tx_queue_size={queue_size}'.
+ format(queue_size=self._qemu_opt.get('queue_size')))\
+ if self._qemu_opt.get('queue_size') else ''
+ vector_size = ('vectors={vectors}'.
+ format(vectors=2*self._qemu_opt.get('queue_count')+2))\
+ if self._qemu_opt.get('queue_count') else ''
+
+ # Create Virtio network device.
+ device = (' -device virtio-net-pci,netdev=vhost{vhost_id},mac={mac},'
+ 'mq=on,{vector_size},csum=off,gso=off,guest_tso4=off,'
+ 'guest_tso6=off,guest_ecn=off,mrg_rxbuf={mbuf},{queue_size}'.
+ format(vhost_id=self._vhost_id, mac=mac,
+ mbuf='on,host_mtu=9200' if jumbo_frames else 'off',
+ queue_size=queue_size, vector_size=vector_size))
+ self._qemu_opt['options'] += device
+ # Add interface MAC and socket to the node dict
+ if_data = {'mac_address': mac, 'socket': socket}
+ if_name = 'vhost{vhost_id}'.format(vhost_id=self._vhost_id)
+ self._vm_info['interfaces'][if_name] = if_data
+ # Add socket to the socket list
+ self._socks.append(socket)
+
+ def _qemu_qmp_exec(self, cmd):
+ """Execute QMP command.
+
+ QMP is JSON based protocol which allows to control QEMU instance.
+
+ :param cmd: QMP command to execute.
+ :type cmd: str
+ :returns: Command output in python representation of JSON format. The
+ { "return": {} } response is QMP's success response. An error
+ response will contain the "error" keyword instead of "return".
+ """
+ # To enter command mode, the qmp_capabilities command must be issued.
+ ret_code, stdout, _ = self._ssh.exec_command(
+ 'echo "{{ \\"execute\\": \\"qmp_capabilities\\" }}'
+ '{{ \\"execute\\": \\"{cmd}\\" }}" | '
+ 'sudo -S socat - UNIX-CONNECT:{qmp_sock}'.
+ format(cmd=cmd, qmp_sock=self._qemu_opt.get('qmp_sock')))
+ if int(ret_code) != 0:
+ raise RuntimeError('QMP execute "{cmd}" failed on {host}'.
+ format(cmd=cmd, host=self._node['host']))
+ # 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']))
+ return json.loads(out_list[2])
+
+ def _qemu_qga_flush(self):
+ """Flush the QGA parser state."""
+ ret_code, stdout, _ = self._ssh.exec_command(
+ '(printf "\xFF"; sleep 1) | '
+ 'sudo -S socat - UNIX-CONNECT:{qga_sock}'.
+ format(qga_sock=self._qemu_opt.get('qga_sock')))
+ if int(ret_code) != 0:
+ raise RuntimeError('QGA flush failed on {host}'.
+ format(host=self._node['host']))
+ if not stdout:
+ return {}
+ return json.loads(stdout.split('\n', 1)[0])
+
+ def _qemu_qga_exec(self, cmd):
+ """Execute QGA command.
+
+ QGA provide access to a system-level agent via standard QMP commands.
+
+ :param cmd: QGA command to execute.
+ :type cmd: str
+ """
+ ret_code, stdout, _ = self._ssh.exec_command(
+ '(echo "{{ \\"execute\\": \\"{cmd}\\" }}"; sleep 1) | '
+ 'sudo -S socat - UNIX-CONNECT:{qga_sock}'.
+ format(cmd=cmd, qga_sock=self._qemu_opt.get('qga_sock')))
+ if int(ret_code) != 0:
+ raise RuntimeError('QGA execute "{cmd}" failed on {host}'.
+ format(cmd=cmd, host=self._node['host']))
+ if not stdout:
+ return {}
+ return json.loads(stdout.split('\n', 1)[0])
+
+ def _wait_until_vm_boot(self, timeout=60):
+ """Wait until QEMU VM 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
+ """
+ start = time()
+ while True:
+ if time() - start > timeout:
+ raise RuntimeError('timeout, VM {disk} not booted on {host}'.
+ format(disk=self._qemu_opt['disk_image'],
+ host=self._node['host']))
+ out = None
+ try:
+ out = self._qemu_qga_flush()
+ except ValueError:
+ logger.trace('QGA qga flush unexpected output {out}'.
+ format(out=out))
+ # Empty output - VM not booted yet
+ if not out:
+ sleep(5)
+ else:
+ break
+ while True:
+ if time() - start > timeout:
+ raise RuntimeError('timeout, VM with {disk} not booted '
+ 'on {host}'.
+ format(disk=self._qemu_opt['disk_image'],
+ host=self._node['host']))
+ out = None
+ try:
+ out = self._qemu_qga_exec('guest-ping')
+ except ValueError:
+ logger.trace('QGA guest-ping unexpected output {out}'.
+ format(out=out))
+ # Empty output - VM not booted yet
+ if not out:
+ sleep(5)
+ # Non-error return - VM booted
+ elif out.get('return') is not None:
+ break
+ # Skip error and wait
+ elif out.get('error') is not None:
+ sleep(5)
+ else:
+ # If there is an unexpected output from QGA guest-info, try
+ # again until timeout.
+ logger.trace('QGA guest-ping unexpected output {out}'.
+ format(out=out))
+
+ logger.trace('VM with {disk_image} booted on {host}'.
+ format(disk_image=self._qemu_opt['disk_image'],
+ host=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')
+ mac_name = {}
+ if not interfaces:
+ raise RuntimeError('Get VM {disk_image} interface list failed '
+ 'on {host}'.
+ format(disk_image=self._qemu_opt['disk_image'],
+ host=self._node['host']))
+ # Create MAC-name dict
+ for interface in interfaces:
+ if 'hardware-address' not in interface:
+ continue
+ 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')
+ if_name = mac_name.get(mac)
+ if if_name is None:
+ logger.trace('Interface name for MAC {mac} not found'.
+ format(mac=mac))
+ else:
+ interface['name'] = if_name
+
+ def qemu_start(self):
+ """Start QEMU and wait until VM boot.
+
+ .. note:: First set at least node to run QEMU on.
+
+ :returns: VM node info.
+ :rtype: dict
+ """
+ # Qemu binary path
+ bin_path = ('{qemu_path}{qemu_bin}'.
+ format(qemu_path=self._qemu_opt.get('qemu_path'),
+ qemu_bin=self._qemu_opt.get('qemu_bin')))
+
+ # Memory and huge pages
+ mem = ('-object memory-backend-file,id=mem,size={mem_size}M,'
+ 'mem-path={path},share=on -m {mem_size} -numa node,memdev=mem'.
+ format(mem_size=self._qemu_opt.get('mem_size'),
+ path=self._qemu_opt.get('huge_mnt')))
+
+ # Drive option
+ drive = ('-drive file={disk_image},format=raw,cache=none,if=virtio'
+ '{locking}'.
+ format(disk_image=self._qemu_opt.get('disk_image'),
+ locking=',file.locking=off'\
+ if self._qemu_version_is_greater('2.10') else ''))
+
+ # SSH forwarding
+ ssh = ('-net user,hostfwd=tcp::{ssh_fwd_port}-:22'.
+ format(ssh_fwd_port=self._qemu_opt.get('ssh_fwd_port')))
+ # Setup QMP via unix socket
+ qmp = ('-qmp unix:{qmp_sock},server,nowait'.
+ format(qmp_sock=self._qemu_opt.get('qmp_sock')))
+ # Setup QGA via chardev (unix socket) and isa-serial channel
+ qga = ('-chardev socket,path={qga_sock},server,nowait,id=qga0 '
+ '-device isa-serial,chardev=qga0'.
+ format(qga_sock=self._qemu_opt.get('qga_sock')))
+ # Setup serial console
+ serial = ('-chardev socket,host=127.0.0.1,port={serial_port},id=gnc0,'
+ 'server,nowait -device isa-serial,chardev=gnc0'.
+ format(serial_port=self._qemu_opt.get('serial_port')))
+
+ # Graphic setup
+ graphic = '-monitor none -display none -vga none'
+
+ # PID file
+ pid = ('-pidfile {pid_file}'.
+ format(pid_file=self._qemu_opt.get('pid_file')))
+
+ # By default check only if hugepages are available.
+ # If 'huge_allocate' is set to true try to allocate as well.
+ DUTSetup.check_huge_page(self._node, self._qemu_opt.get('huge_mnt'),
+ self._qemu_opt.get('mem_size'),
+ allocate=self._qemu_opt.get('huge_allocate'))
+
+ # Run QEMU
+ cmd = ('{bin_path} {smp} {mem} {ssh} {options} {drive} {qmp} {serial} '
+ '{qga} {graphic} {pid}'.
+ format(bin_path=bin_path, smp=self._qemu_opt.get('smp'),
+ mem=mem, ssh=ssh, options=self._qemu_opt.get('options'),
+ drive=drive, qmp=qmp, serial=serial, qga=qga,
+ graphic=graphic, pid=pid))
+ try:
+ ret_code, _, _ = self._ssh.exec_command_sudo(cmd, timeout=300)
+ if int(ret_code) != 0:
+ raise RuntimeError('QEMU start failed on {host}'.
+ format(host=self._node['host']))
+ # Wait until VM boot
+ self._wait_until_vm_boot()
+ except (RuntimeError, SSHTimeout):
+ self.qemu_kill_all()
+ self.qemu_clear_socks()
+ raise
+ logger.trace('QEMU started successfully.')
+ # Update interface names in VM node dict
+ self._update_vm_interfaces()
+ # Return VM node dict
+ return self._vm_info
+
+ def qemu_quit(self):
+ """Quit the QEMU emulator."""
+ out = self._qemu_qmp_exec('quit')
+ err = out.get('error')
+ if err is not None:
+ raise RuntimeError('QEMU quit failed on {host}: {error}'.
+ format(host=self._node['host'],
+ error=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')
+ if err is not None:
+ raise RuntimeError(
+ 'QEMU system powerdown failed on {host}: {error}'.
+ format(host=self._node['host'], error=json.dumps(err)))
+
+ def qemu_system_reset(self):
+ """Reset the system."""
+ out = self._qemu_qmp_exec('system_reset')
+ err = out.get('error')
+ if err is not None:
+ raise RuntimeError(
+ 'QEMU system reset failed on {host}: {error}'.
+ format(host=self._node['host'], error=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 {pid}'.
+ format(pid=self._qemu_opt.get('pid_file')))
+ self._ssh.exec_command_sudo('kill -SIGKILL $(cat {pid})'.
+ format(pid=self._qemu_opt.get('pid_file')))
+ # Delete PID file
+ self._ssh.exec_command_sudo('rm -f {pid}'.
+ format(pid=self._qemu_opt.get('pid_file')))
+
+ 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)
+ 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
+ self._ssh.exec_command_sudo('fuser -k {serial_port}/tcp'.
+ format(serial_port=\
+ self._qemu_opt.get('serial_port')))
+ # Delete all created sockets
+ for socket in self._socks:
+ self._ssh.exec_command_sudo('rm -f {socket}'.
+ format(socket=socket))
+
+ def qemu_system_status(self):
+ """Return current VM status.
+
+ VM should be in following status:
+
+ - debug: QEMU running on a debugger
+ - finish-migrate: paused to finish the migration process
+ - inmigrate: waiting for an incoming migration
+ - internal-error: internal error has occurred
+ - io-error: the last IOP has failed
+ - paused: paused
+ - postmigrate: paused following a successful migrate
+ - prelaunch: QEMU was started with -S and guest has not started
+ - restore-vm: paused to restore VM state
+ - running: actively running
+ - save-vm: paused to save the VM state
+ - shutdown: shut down (and -no-shutdown is in use)
+ - suspended: suspended (ACPI S3)
+ - watchdog: watchdog action has been triggered
+ - guest-panicked: panicked as a result of guest OS panic
+
+ :returns: VM status.
+ :rtype: str
+ """
+ out = self._qemu_qmp_exec('query-status')
+ ret = out.get('return')
+ if ret is not None:
+ return ret.get('status')
+ else:
+ err = out.get('error')
+ raise RuntimeError('QEMU query-status failed on {host}: {error}'.
+ format(host=self._node['host'],
+ error=json.dumps(err)))
+
+ def qemu_version(self):
+ """Return Qemu version.
+
+ :returns: Qemu version.
+ :rtype: str
+ """
+ # Qemu binary path
+ bin_path = ('{qemu_path}{qemu_bin}'.
+ format(qemu_path=self._qemu_opt.get('qemu_path'),
+ qemu_bin=self._qemu_opt.get('qemu_bin')))
+
+ try:
+ ret_code, stdout, _ = self._ssh.exec_command_sudo(
+ '{bin_path} --version'.
+ format(bin_path=bin_path))
+ if int(ret_code) != 0:
+ raise RuntimeError('Failed to get QEMU version on {host}'.
+ format(host=self._node['host']))
+
+ return re.match(r'QEMU emulator version ([\d.]*)', stdout).group(1)
+ except (RuntimeError, SSHTimeout):
+ self.qemu_kill_all()
+ self.qemu_clear_socks()
+ raise
+
+ def _qemu_version_is_greater(self, version):
+ """Compare Qemu versions.
+
+ :returns: True if installed Qemu version is greater.
+ :rtype: bool
+ """
+ return StrictVersion(self.qemu_version()) > StrictVersion(version)
+
@staticmethod
- def build_qemu(node):
+ 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.
"""
ssh = SSH()
ssh.connect(node)
- (ret_code, stdout, stderr) = \
- ssh.exec_command('sudo -Sn bash {0}/{1}/qemu_build.sh'.format(
- Constants.REMOTE_FW_DIR, Constants.RESOURCES_LIB_SH), 1000)
- logger.trace(stdout)
- if 0 != int(ret_code):
- logger.debug('QEMU build failed {0}'.format(stderr))
- raise RuntimeError('QEMU build failed on {0}'.format(node['host']))
+ 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 ''
+ arch = Topology.get_node_arch(node)
+ target_list = (' --target-list={arch}-softmmu'.
+ format(arch=arch))
+
+ ret_code, _, _ = ssh.exec_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), 1000)
+
+ if int(ret_code) != 0:
+ raise RuntimeError('QEMU build failed on {host}'.
+ format(host=node['host']))
Code Review / csit.git / blobdiff