diff options
Diffstat (limited to 'resources/libraries/python')
| -rw-r--r-- | resources/libraries/python/QemuUtils.py | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/resources/libraries/python/QemuUtils.py b/resources/libraries/python/QemuUtils.py index d105dae89a..15c4e2315a 100644 --- a/resources/libraries/python/QemuUtils.py +++ b/resources/libraries/python/QemuUtils.py @@ -39,9 +39,9 @@ class QemuUtils(object): 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'] = '-daemonize -enable-kvm ' \ + self._qemu_opt['options'] = '-cpu host -daemonize -enable-kvm ' \ '-machine pc-1.0,accel=kvm,usb=off,mem-merge=off ' \ - '-net nic,macaddr=52:54:00:00:02:01' + '-net nic,macaddr=52:54:00:00:02:01 -balloon none' self._qemu_opt['ssh_fwd_port'] = 10022 # Default serial console port self._qemu_opt['serial_port'] = 4556 @@ -51,6 +51,8 @@ class QemuUtils(object): self._qemu_opt['huge_mnt'] = '/mnt/huge' # Default image for CSIT virl setup self._qemu_opt['disk_image'] = '/var/lib/vm/vhost-nested.img' + # Affinity of qemu processes + self._qemu_opt['affinity'] = False # VM node info dict self._vm_info = { 'type': NodeType.VM, @@ -102,7 +104,7 @@ class QemuUtils(object): :param mem_size: RAM size in Mega Bytes. :type mem_size: int """ - self._qemu_opt['mem_size'] = mem_size + self._qemu_opt['mem_size'] = int(mem_size) def qemu_set_huge_mnt(self, huge_mnt): """Set hugefile mount point. @@ -120,6 +122,14 @@ class QemuUtils(object): """ self._qemu_opt['disk_image'] = disk_image + def qemu_set_affinity(self, mask): + """Set qemu affinity by taskset with cpu mask. + + :param mask: Hex CPU mask. + :type mask: str + """ + self._qemu_opt['affinity'] = mask + def qemu_set_node(self, node): """Set node to run QEMU on. @@ -157,9 +167,11 @@ class QemuUtils(object): # e.g. vhost1 MAC is 52:54:00:00:04:01 if mac is None: mac = '52:54:00:00:04:{0:02x}'.format(self._vhost_id) + extend_options = '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}'.format( - self._vhost_id, mac) + 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} @@ -334,7 +346,7 @@ class QemuUtils(object): 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( + 'share=on -m {0} -numa node,memdev=mem -mem-prealloc'.format( self._qemu_opt.get('mem_size'), self._qemu_opt.get('huge_mnt')) self._huge_page_check() # Setup QMP via unix socket @@ -348,9 +360,12 @@ class QemuUtils(object): '-device isa-serial,chardev=qga0' # Graphic setup graphic = '-monitor none -display none -vga none' + qbin = 'taskset {0} {1}'.format(self._qemu_opt.get('affinity'), + self.__QEMU_BIN) if self._qemu_opt.get( + 'affinity') else self.__QEMU_BIN # Run QEMU cmd = '{0} {1} {2} {3} {4} -hda {5} {6} {7} {8} {9}'.format( - self.__QEMU_BIN, self._qemu_opt.get('smp'), mem, ssh_fwd, + qbin, self._qemu_opt.get('smp'), mem, ssh_fwd, self._qemu_opt.get('options'), self._qemu_opt.get('disk_image'), qmp, serial, qga, graphic) (ret_code, _, stderr) = self._ssh.exec_command_sudo(cmd, timeout=300) |