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Diffstat (limited to 'extras/vpp_config/vpplib/QemuUtils.py')
| -rw-r--r-- | extras/vpp_config/vpplib/QemuUtils.py | 680 |
1 files changed, 680 insertions, 0 deletions
diff --git a/extras/vpp_config/vpplib/QemuUtils.py b/extras/vpp_config/vpplib/QemuUtils.py new file mode 100644 index 00000000000..37a13e2afb3 --- /dev/null +++ b/extras/vpp_config/vpplib/QemuUtils.py @@ -0,0 +1,680 @@ +# Copyright (c) 2016 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: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""QEMU utilities library.""" + +from time import time, sleep +import json +import logging + +from vpplib.VPPUtil import VPPUtil +from vpplib.constants import Constants + + +class NodeType(object): + """Defines node types used in topology dictionaries.""" + # Device Under Test (this node has VPP running on it) + DUT = 'DUT' + # Traffic Generator (this node has traffic generator on it) + TG = 'TG' + # Virtual Machine (this node running on DUT node) + VM = 'VM' + + +class QemuUtils(object): + """QEMU utilities.""" + + def __init__(self, qemu_id=1): + self._qemu_id = qemu_id + # Path to QEMU binary + self._qemu_bin = '/usr/bin/qemu-system-x86_64' + # QEMU Machine Protocol socket + 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) + # QEMU PID file + 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' + # 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' + # VM node info dict + self._vm_info = { + 'type': NodeType.VM, + 'port': self._qemu_opt['ssh_fwd_port'], + 'username': 'cisco', + 'password': 'cisco', + 'interfaces': {}, + } + # Virtio queue count + self._qemu_opt['queues'] = 1 + self._vhost_id = 0 + self._ssh = None + self._node = None + self._socks = [self._qmp_sock, self._qga_sock] + + def qemu_set_bin(self, path): + """Set binary path for QEMU. + + :param path: Absolute path in filesystem. + :type path: str + """ + self._qemu_bin = path + + def qemu_set_smp(self, cpus, cores, threads, sockets): + """Set SMP option for QEMU. + + :param cpus: 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 cpus: int + :type cores: int + :type threads: int + :type sockets: int + """ + 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 + + 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): + 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']) + (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'])) + + 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: + 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'])) + + 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._vm_info['host'] = node['host'] + + def qemu_add_vhost_user_if(self, socket, server=True, mac=None): + """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). + :type socket: str + :type server: bool + :type mac: str + """ + self._vhost_id += 1 + # Create unix socket character device. + chardev = ' -chardev socket,id=char{0},path={1}'.format(self._vhost_id, + socket) + if server is True: + 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 + # 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' + # 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 + # 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 + # 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 + :return: 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. + 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(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'])) + 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 + # 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(stdout) + 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 + """ + 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(stdout) + 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. + + 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 {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') + except ValueError: + 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: + 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. + 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'])) + + 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 {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: + 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: + logging.debug('Interface name for MAC {} not found'.format(mac)) + else: + 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') + + # Get huge pages information + huge_size = self._get_huge_page_size() + huge_free = self._get_huge_page_free(huge_size) + huge_total = self._get_huge_page_total(huge_size) + + # Check if memory reqested by qemu is available on host + if (mem_size * 1024) > (huge_free * huge_size): + # If we want to allocate hugepage dynamically + 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 + # 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) + (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) + (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'])) + # 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) + ) + # Check if huge pages mount point exist + has_huge_mnt = False + (_, 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: + 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) + (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) + (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'])) + + def _get_huge_page_size(self): + """Get default size of huge pages in system. + + :returns: Default size of free huge pages in system. + :rtype: int + :raises: RuntimeError if reading failed for three times. + """ + # TODO: remove to dedicated library + cmd_huge_size = "grep Hugepagesize /proc/meminfo | awk '{ print $2 }'" + for _ in range(3): + (ret, out, _) = self._ssh.exec_command_sudo(cmd_huge_size) + if ret == 0: + try: + huge_size = int(out) + except ValueError: + logging.debug('Reading huge page size information failed') + else: + break + else: + raise RuntimeError('Getting huge page size information failed.') + return huge_size + + def _get_huge_page_free(self, huge_size): + """Get total number of huge pages in system. + + :param huge_size: Size of hugepages. + :type huge_size: int + :returns: Number of free huge pages in system. + :rtype: int + :raises: RuntimeError if reading failed for three times. + """ + # 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) + 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') + else: + break + else: + raise RuntimeError('Getting free huge pages information failed.') + return huge_free + + def _get_huge_page_total(self, huge_size): + """Get total number of huge pages in system. + + :param huge_size: Size of hugepages. + :type huge_size: int + :returns: Total number of huge pages in system. + :rtype: int + :raises: RuntimeError if reading failed for three times. + """ + # 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) + 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') + else: + break + else: + raise RuntimeError('Getting total huge pages information failed.') + return huge_total + + def qemu_start(self): + """Start QEMU and wait until VM boot. + + :return: VM node info. + :rtype: dict + .. note:: First set at least node to run QEMU on. + .. 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')) + # 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')) + + # 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')) + + # Disk option + 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) + # 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')) + # 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) + # Graphic setup + graphic = '-monitor none -display none -vga none' + # 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) + (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') + # Wait until VM boot + try: + self._wait_until_vm_boot() + except RuntimeError: + self.qemu_kill_all() + self.qemu_clear_socks() + raise + # 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 {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') + if err is not None: + raise RuntimeError( + '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') + if err is not None: + raise RuntimeError( + '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)) + # Delete PID file + cmd = 'rm -f {}'.format(self._pid_file) + self._ssh.exec_command_sudo(cmd) + + 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 + 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) + self._ssh.exec_command_sudo(cmd) + + 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 + + :return: 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 {0}, ' + 'error: {1}'.format(self._node['host'], json.dumps(err))) + + @staticmethod + def build_qemu(node, force_install=False, apply_patch=False): + """Build QEMU from sources. + + :param node: Node to build QEMU on. + :param force_install: If True, then remove previous build. + :param apply_patch: If True, then apply patches from qemu_patches dir. + :type node: dict + :type force_install: bool + :type apply_patch: bool + :raises: RuntimeError if building QEMU failed. + """ + + directory = ' --directory={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'])) |