root / lib / hypervisor / hv_kvm.py @ 185192f2
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1 | eb58f9b1 | Guido Trotter | #
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2 | eb58f9b1 | Guido Trotter | #
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3 | eb58f9b1 | Guido Trotter | |
4 | 472cc1e9 | Jose A. Lopes | # Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Google Inc.
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5 | eb58f9b1 | Guido Trotter | #
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6 | eb58f9b1 | Guido Trotter | # This program is free software; you can redistribute it and/or modify
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7 | eb58f9b1 | Guido Trotter | # it under the terms of the GNU General Public License as published by
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8 | eb58f9b1 | Guido Trotter | # the Free Software Foundation; either version 2 of the License, or
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9 | eb58f9b1 | Guido Trotter | # (at your option) any later version.
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10 | eb58f9b1 | Guido Trotter | #
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11 | eb58f9b1 | Guido Trotter | # This program is distributed in the hope that it will be useful, but
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12 | eb58f9b1 | Guido Trotter | # WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | eb58f9b1 | Guido Trotter | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 | eb58f9b1 | Guido Trotter | # General Public License for more details.
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15 | eb58f9b1 | Guido Trotter | #
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16 | eb58f9b1 | Guido Trotter | # You should have received a copy of the GNU General Public License
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17 | eb58f9b1 | Guido Trotter | # along with this program; if not, write to the Free Software
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18 | eb58f9b1 | Guido Trotter | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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19 | eb58f9b1 | Guido Trotter | # 02110-1301, USA.
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20 | eb58f9b1 | Guido Trotter | |
21 | eb58f9b1 | Guido Trotter | |
22 | eb58f9b1 | Guido Trotter | """KVM hypervisor
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23 | eb58f9b1 | Guido Trotter |
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24 | eb58f9b1 | Guido Trotter | """
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25 | eb58f9b1 | Guido Trotter | |
26 | 547a63b7 | Balazs Lecz | import errno |
27 | eb58f9b1 | Guido Trotter | import os |
28 | eb58f9b1 | Guido Trotter | import os.path |
29 | eb58f9b1 | Guido Trotter | import re |
30 | eb58f9b1 | Guido Trotter | import tempfile |
31 | 6567aff3 | Guido Trotter | import time |
32 | 30e42c4e | Guido Trotter | import logging |
33 | d19d94db | Guido Trotter | import pwd |
34 | 199b2053 | Apollon Oikonomopoulos | import struct |
35 | 199b2053 | Apollon Oikonomopoulos | import fcntl |
36 | 5d9bfd87 | Apollon Oikonomopoulos | import shutil |
37 | 27b6654e | Jose A. Lopes | import urllib2 |
38 | 91c10532 | Andrea Spadaccini | import socket |
39 | fc84cd5d | Guido Trotter | import stat |
40 | 91c10532 | Andrea Spadaccini | import StringIO |
41 | 2615646c | Dimitris Aragiorgis | from bitarray import bitarray |
42 | b693125f | Tsachy Shacham | try:
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43 | 471a31b6 | Andrea Spadaccini | import affinity # pylint: disable=F0401 |
44 | b693125f | Tsachy Shacham | except ImportError: |
45 | b693125f | Tsachy Shacham | affinity = None
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46 | 97cd9092 | Dimitris Aragiorgis | try:
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47 | 97cd9092 | Dimitris Aragiorgis | import fdsend # pylint: disable=F0401 |
48 | 97cd9092 | Dimitris Aragiorgis | except ImportError: |
49 | 97cd9092 | Dimitris Aragiorgis | fdsend = None
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50 | eb58f9b1 | Guido Trotter | |
51 | eb58f9b1 | Guido Trotter | from ganeti import utils |
52 | eb58f9b1 | Guido Trotter | from ganeti import constants |
53 | eb58f9b1 | Guido Trotter | from ganeti import errors |
54 | 38e250ba | Guido Trotter | from ganeti import serializer |
55 | 38e250ba | Guido Trotter | from ganeti import objects |
56 | 76431533 | Guido Trotter | from ganeti import uidpool |
57 | 76431533 | Guido Trotter | from ganeti import ssconf |
58 | a744b676 | Manuel Franceschini | from ganeti import netutils |
59 | 9d9bded1 | Michael Hanselmann | from ganeti import pathutils |
60 | 9d9bded1 | Michael Hanselmann | from ganeti.hypervisor import hv_base |
61 | 5d9bfd87 | Apollon Oikonomopoulos | from ganeti.utils import wrapper as utils_wrapper |
62 | eb58f9b1 | Guido Trotter | |
63 | eb58f9b1 | Guido Trotter | |
64 | 0e1e0b6a | Michael Hanselmann | _KVM_NETWORK_SCRIPT = pathutils.CONF_DIR + "/kvm-vif-bridge"
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65 | b693125f | Tsachy Shacham | _KVM_START_PAUSED_FLAG = "-S"
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66 | 748e4b5a | Michael Hanselmann | |
67 | 199b2053 | Apollon Oikonomopoulos | # TUN/TAP driver constants, taken from <linux/if_tun.h>
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68 | 199b2053 | Apollon Oikonomopoulos | # They are architecture-independent and already hardcoded in qemu-kvm source,
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69 | 199b2053 | Apollon Oikonomopoulos | # so we can safely include them here.
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70 | 199b2053 | Apollon Oikonomopoulos | TUNSETIFF = 0x400454ca
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71 | 199b2053 | Apollon Oikonomopoulos | TUNGETIFF = 0x800454d2
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72 | 199b2053 | Apollon Oikonomopoulos | TUNGETFEATURES = 0x800454cf
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73 | 199b2053 | Apollon Oikonomopoulos | IFF_TAP = 0x0002
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74 | 199b2053 | Apollon Oikonomopoulos | IFF_NO_PI = 0x1000
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75 | 199b2053 | Apollon Oikonomopoulos | IFF_VNET_HDR = 0x4000
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76 | 199b2053 | Apollon Oikonomopoulos | |
77 | 07788a0b | Michael Hanselmann | #: SPICE parameters which depend on L{constants.HV_KVM_SPICE_BIND}
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78 | 07788a0b | Michael Hanselmann | _SPICE_ADDITIONAL_PARAMS = frozenset([
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79 | 07788a0b | Michael Hanselmann | constants.HV_KVM_SPICE_IP_VERSION, |
80 | 07788a0b | Michael Hanselmann | constants.HV_KVM_SPICE_PASSWORD_FILE, |
81 | 07788a0b | Michael Hanselmann | constants.HV_KVM_SPICE_LOSSLESS_IMG_COMPR, |
82 | 07788a0b | Michael Hanselmann | constants.HV_KVM_SPICE_JPEG_IMG_COMPR, |
83 | 07788a0b | Michael Hanselmann | constants.HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR, |
84 | 07788a0b | Michael Hanselmann | constants.HV_KVM_SPICE_STREAMING_VIDEO_DETECTION, |
85 | 07788a0b | Michael Hanselmann | constants.HV_KVM_SPICE_USE_TLS, |
86 | 07788a0b | Michael Hanselmann | ]) |
87 | 07788a0b | Michael Hanselmann | |
88 | 2615646c | Dimitris Aragiorgis | # Constant bitarray that reflects to a free pci slot
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89 | 2615646c | Dimitris Aragiorgis | # Use it with bitarray.search()
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90 | 2615646c | Dimitris Aragiorgis | _AVAILABLE_PCI_SLOT = bitarray("0")
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91 | 2615646c | Dimitris Aragiorgis | |
92 | 0fe22ad2 | Dimitris Aragiorgis | # below constants show the format of runtime file
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93 | 0fe22ad2 | Dimitris Aragiorgis | # the nics are in second possition, while the disks in 4th (last)
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94 | 41a878b5 | Dimitris Aragiorgis | # moreover disk entries are stored as a list of in tuples
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95 | 41a878b5 | Dimitris Aragiorgis | # (L{objects.Disk}, link_name, uri)
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96 | 0fe22ad2 | Dimitris Aragiorgis | _KVM_NICS_RUNTIME_INDEX = 1
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97 | 0fe22ad2 | Dimitris Aragiorgis | _KVM_DISKS_RUNTIME_INDEX = 3
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98 | 0fe22ad2 | Dimitris Aragiorgis | _DEVICE_RUNTIME_INDEX = { |
99 | 0fe22ad2 | Dimitris Aragiorgis | constants.HOTPLUG_TARGET_DISK: _KVM_DISKS_RUNTIME_INDEX, |
100 | 0fe22ad2 | Dimitris Aragiorgis | constants.HOTPLUG_TARGET_NIC: _KVM_NICS_RUNTIME_INDEX |
101 | 0fe22ad2 | Dimitris Aragiorgis | } |
102 | 0fe22ad2 | Dimitris Aragiorgis | _FIND_RUNTIME_ENTRY = { |
103 | 0fe22ad2 | Dimitris Aragiorgis | constants.HOTPLUG_TARGET_NIC: |
104 | 0fe22ad2 | Dimitris Aragiorgis | lambda nic, kvm_nics: [n for n in kvm_nics if n.uuid == nic.uuid], |
105 | 0fe22ad2 | Dimitris Aragiorgis | constants.HOTPLUG_TARGET_DISK: |
106 | 0fe22ad2 | Dimitris Aragiorgis | lambda disk, kvm_disks: [(d, l, u) for (d, l, u) in kvm_disks |
107 | 0fe22ad2 | Dimitris Aragiorgis | if d.uuid == disk.uuid]
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108 | 0fe22ad2 | Dimitris Aragiorgis | } |
109 | 0fe22ad2 | Dimitris Aragiorgis | _RUNTIME_DEVICE = { |
110 | 0fe22ad2 | Dimitris Aragiorgis | constants.HOTPLUG_TARGET_NIC: lambda d: d,
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111 | 0fe22ad2 | Dimitris Aragiorgis | constants.HOTPLUG_TARGET_DISK: lambda (d, e, _): d
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112 | 0fe22ad2 | Dimitris Aragiorgis | } |
113 | 0fe22ad2 | Dimitris Aragiorgis | _RUNTIME_ENTRY = { |
114 | 0fe22ad2 | Dimitris Aragiorgis | constants.HOTPLUG_TARGET_NIC: lambda d, e: d,
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115 | 0fe22ad2 | Dimitris Aragiorgis | constants.HOTPLUG_TARGET_DISK: lambda d, e: (d, e, None) |
116 | 0fe22ad2 | Dimitris Aragiorgis | } |
117 | 0fe22ad2 | Dimitris Aragiorgis | |
118 | 937ff984 | Dimitris Aragiorgis | _MIGRATION_CAPS_DELIM = ":"
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119 | 937ff984 | Dimitris Aragiorgis | |
120 | 0fe22ad2 | Dimitris Aragiorgis | |
121 | 2615646c | Dimitris Aragiorgis | def _GenerateDeviceKVMId(dev_type, dev): |
122 | 2615646c | Dimitris Aragiorgis | """Helper function to generate a unique device name used by KVM
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123 | 2615646c | Dimitris Aragiorgis |
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124 | 2615646c | Dimitris Aragiorgis | QEMU monitor commands use names to identify devices. Here we use their pci
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125 | 2615646c | Dimitris Aragiorgis | slot and a part of their UUID to name them. dev.pci might be None for old
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126 | 2615646c | Dimitris Aragiorgis | devices in the cluster.
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127 | 2615646c | Dimitris Aragiorgis |
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128 | 2615646c | Dimitris Aragiorgis | @type dev_type: sting
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129 | 2615646c | Dimitris Aragiorgis | @param dev_type: device type of param dev
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130 | 2615646c | Dimitris Aragiorgis | @type dev: L{objects.Disk} or L{objects.NIC}
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131 | 2615646c | Dimitris Aragiorgis | @param dev: the device object for which we generate a kvm name
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132 | 2615646c | Dimitris Aragiorgis | @raise errors.HotplugError: in case a device has no pci slot (old devices)
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133 | 2615646c | Dimitris Aragiorgis |
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134 | 2615646c | Dimitris Aragiorgis | """
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135 | 2615646c | Dimitris Aragiorgis | |
136 | 2615646c | Dimitris Aragiorgis | if not dev.pci: |
137 | 2615646c | Dimitris Aragiorgis | raise errors.HotplugError("Hotplug is not supported for %s with UUID %s" % |
138 | 2615646c | Dimitris Aragiorgis | (dev_type, dev.uuid)) |
139 | 2615646c | Dimitris Aragiorgis | |
140 | 2615646c | Dimitris Aragiorgis | return "%s-%s-pci-%d" % (dev_type.lower(), dev.uuid.split("-")[0], dev.pci) |
141 | 2615646c | Dimitris Aragiorgis | |
142 | 2615646c | Dimitris Aragiorgis | |
143 | d13fb3f1 | Dimitris Aragiorgis | def _GetFreeSlot(slots, slot=None, reserve=False): |
144 | d13fb3f1 | Dimitris Aragiorgis | """Helper method to get first available slot in a bitarray
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145 | d13fb3f1 | Dimitris Aragiorgis |
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146 | d13fb3f1 | Dimitris Aragiorgis | @type slots: bitarray
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147 | d13fb3f1 | Dimitris Aragiorgis | @param slots: the bitarray to operate on
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148 | d13fb3f1 | Dimitris Aragiorgis | @type slot: integer
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149 | d13fb3f1 | Dimitris Aragiorgis | @param slot: if given we check whether the slot is free
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150 | d13fb3f1 | Dimitris Aragiorgis | @type reserve: boolean
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151 | d13fb3f1 | Dimitris Aragiorgis | @param reserve: whether to reserve the first available slot or not
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152 | d13fb3f1 | Dimitris Aragiorgis | @return: the idx of the (first) available slot
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153 | d13fb3f1 | Dimitris Aragiorgis | @raise errors.HotplugError: If all slots in a bitarray are occupied
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154 | d13fb3f1 | Dimitris Aragiorgis | or the given slot is not free.
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155 | 2615646c | Dimitris Aragiorgis |
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156 | d13fb3f1 | Dimitris Aragiorgis | """
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157 | d13fb3f1 | Dimitris Aragiorgis | if slot is not None: |
158 | d13fb3f1 | Dimitris Aragiorgis | assert slot < len(slots) |
159 | d13fb3f1 | Dimitris Aragiorgis | if slots[slot]:
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160 | d13fb3f1 | Dimitris Aragiorgis | raise errors.HypervisorError("Slots %d occupied" % slot) |
161 | 2615646c | Dimitris Aragiorgis | |
162 | d13fb3f1 | Dimitris Aragiorgis | else:
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163 | d13fb3f1 | Dimitris Aragiorgis | avail = slots.search(_AVAILABLE_PCI_SLOT, 1)
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164 | d13fb3f1 | Dimitris Aragiorgis | if not avail: |
165 | d13fb3f1 | Dimitris Aragiorgis | raise errors.HypervisorError("All slots occupied") |
166 | 2615646c | Dimitris Aragiorgis | |
167 | d13fb3f1 | Dimitris Aragiorgis | slot = int(avail[0]) |
168 | 2615646c | Dimitris Aragiorgis | |
169 | d13fb3f1 | Dimitris Aragiorgis | if reserve:
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170 | d13fb3f1 | Dimitris Aragiorgis | slots[slot] = True
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171 | 2615646c | Dimitris Aragiorgis | |
172 | d13fb3f1 | Dimitris Aragiorgis | return slot
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173 | 2615646c | Dimitris Aragiorgis | |
174 | 2615646c | Dimitris Aragiorgis | |
175 | 0fe22ad2 | Dimitris Aragiorgis | def _GetExistingDeviceInfo(dev_type, device, runtime): |
176 | 0fe22ad2 | Dimitris Aragiorgis | """Helper function to get an existing device inside the runtime file
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177 | 0fe22ad2 | Dimitris Aragiorgis |
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178 | 0fe22ad2 | Dimitris Aragiorgis | Used when an instance is running. Load kvm runtime file and search
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179 | 0fe22ad2 | Dimitris Aragiorgis | for a device based on its type and uuid.
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180 | 0fe22ad2 | Dimitris Aragiorgis |
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181 | 0fe22ad2 | Dimitris Aragiorgis | @type dev_type: sting
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182 | 0fe22ad2 | Dimitris Aragiorgis | @param dev_type: device type of param dev
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183 | 0fe22ad2 | Dimitris Aragiorgis | @type device: L{objects.Disk} or L{objects.NIC}
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184 | 0fe22ad2 | Dimitris Aragiorgis | @param device: the device object for which we generate a kvm name
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185 | 0fe22ad2 | Dimitris Aragiorgis | @type runtime: tuple (cmd, nics, hvparams, disks)
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186 | 0fe22ad2 | Dimitris Aragiorgis | @param runtime: the runtime data to search for the device
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187 | 0fe22ad2 | Dimitris Aragiorgis | @raise errors.HotplugError: in case the requested device does not
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188 | 0fe22ad2 | Dimitris Aragiorgis | exist (e.g. device has been added without --hotplug option) or
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189 | 0fe22ad2 | Dimitris Aragiorgis | device info has not pci slot (e.g. old devices in the cluster)
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190 | 0fe22ad2 | Dimitris Aragiorgis |
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191 | 0fe22ad2 | Dimitris Aragiorgis | """
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192 | 0fe22ad2 | Dimitris Aragiorgis | index = _DEVICE_RUNTIME_INDEX[dev_type] |
193 | 0fe22ad2 | Dimitris Aragiorgis | found = _FIND_RUNTIME_ENTRY[dev_type](device, runtime[index]) |
194 | 0fe22ad2 | Dimitris Aragiorgis | if not found: |
195 | 0fe22ad2 | Dimitris Aragiorgis | raise errors.HotplugError("Cannot find runtime info for %s with UUID %s" % |
196 | 0fe22ad2 | Dimitris Aragiorgis | (dev_type, device.uuid)) |
197 | 0fe22ad2 | Dimitris Aragiorgis | |
198 | 0fe22ad2 | Dimitris Aragiorgis | return found[0] |
199 | 0fe22ad2 | Dimitris Aragiorgis | |
200 | 0fe22ad2 | Dimitris Aragiorgis | |
201 | e8cbe174 | Dimitris Aragiorgis | def _UpgradeSerializedRuntime(serialized_runtime): |
202 | e8cbe174 | Dimitris Aragiorgis | """Upgrade runtime data
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203 | e8cbe174 | Dimitris Aragiorgis |
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204 | e8cbe174 | Dimitris Aragiorgis | Remove any deprecated fields or change the format of the data.
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205 | e8cbe174 | Dimitris Aragiorgis | The runtime files are not upgraded when Ganeti is upgraded, so the required
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206 | e8cbe174 | Dimitris Aragiorgis | modification have to be performed here.
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207 | 0fe22ad2 | Dimitris Aragiorgis |
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208 | 0fe22ad2 | Dimitris Aragiorgis | @type serialized_runtime: string
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209 | 0fe22ad2 | Dimitris Aragiorgis | @param serialized_runtime: raw text data read from actual runtime file
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210 | e8cbe174 | Dimitris Aragiorgis | @return: (cmd, nic dicts, hvparams, bdev dicts)
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211 | e8cbe174 | Dimitris Aragiorgis | @rtype: tuple
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212 | 0fe22ad2 | Dimitris Aragiorgis |
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213 | 0fe22ad2 | Dimitris Aragiorgis | """
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214 | 0fe22ad2 | Dimitris Aragiorgis | loaded_runtime = serializer.Load(serialized_runtime) |
215 | e8cbe174 | Dimitris Aragiorgis | kvm_cmd, serialized_nics, hvparams = loaded_runtime[:3]
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216 | e8cbe174 | Dimitris Aragiorgis | if len(loaded_runtime) >= 4: |
217 | e8cbe174 | Dimitris Aragiorgis | serialized_disks = loaded_runtime[3]
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218 | 0fe22ad2 | Dimitris Aragiorgis | else:
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219 | e8cbe174 | Dimitris Aragiorgis | serialized_disks = [] |
220 | e8cbe174 | Dimitris Aragiorgis | |
221 | e8cbe174 | Dimitris Aragiorgis | for nic in serialized_nics: |
222 | e8cbe174 | Dimitris Aragiorgis | # Add a dummy uuid slot if an pre-2.8 NIC is found
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223 | e8cbe174 | Dimitris Aragiorgis | if "uuid" not in nic: |
224 | e8cbe174 | Dimitris Aragiorgis | nic["uuid"] = utils.NewUUID()
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225 | e8cbe174 | Dimitris Aragiorgis | |
226 | e8cbe174 | Dimitris Aragiorgis | return kvm_cmd, serialized_nics, hvparams, serialized_disks
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227 | e8cbe174 | Dimitris Aragiorgis | |
228 | 0fe22ad2 | Dimitris Aragiorgis | |
229 | e8cbe174 | Dimitris Aragiorgis | def _AnalyzeSerializedRuntime(serialized_runtime): |
230 | e8cbe174 | Dimitris Aragiorgis | """Return runtime entries for a serialized runtime file
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231 | 0fe22ad2 | Dimitris Aragiorgis |
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232 | e8cbe174 | Dimitris Aragiorgis | @type serialized_runtime: string
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233 | e8cbe174 | Dimitris Aragiorgis | @param serialized_runtime: raw text data read from actual runtime file
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234 | e8cbe174 | Dimitris Aragiorgis | @return: (cmd, nics, hvparams, bdevs)
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235 | e8cbe174 | Dimitris Aragiorgis | @rtype: tuple
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236 | e8cbe174 | Dimitris Aragiorgis |
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237 | e8cbe174 | Dimitris Aragiorgis | """
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238 | e8cbe174 | Dimitris Aragiorgis | kvm_cmd, serialized_nics, hvparams, serialized_disks = \ |
239 | e8cbe174 | Dimitris Aragiorgis | _UpgradeSerializedRuntime(serialized_runtime) |
240 | 0fe22ad2 | Dimitris Aragiorgis | kvm_nics = [objects.NIC.FromDict(snic) for snic in serialized_nics] |
241 | 41a878b5 | Dimitris Aragiorgis | kvm_disks = [(objects.Disk.FromDict(sdisk), link, uri) |
242 | 41a878b5 | Dimitris Aragiorgis | for sdisk, link, uri in serialized_disks] |
243 | 0fe22ad2 | Dimitris Aragiorgis | |
244 | 41a878b5 | Dimitris Aragiorgis | return (kvm_cmd, kvm_nics, hvparams, kvm_disks)
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245 | 0fe22ad2 | Dimitris Aragiorgis | |
246 | 199b2053 | Apollon Oikonomopoulos | |
247 | ea2bcb82 | Michael Hanselmann | def _GetTunFeatures(fd, _ioctl=fcntl.ioctl): |
248 | ea2bcb82 | Michael Hanselmann | """Retrieves supported TUN features from file descriptor.
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249 | ea2bcb82 | Michael Hanselmann |
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250 | ea2bcb82 | Michael Hanselmann | @see: L{_ProbeTapVnetHdr}
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251 | ea2bcb82 | Michael Hanselmann |
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252 | ea2bcb82 | Michael Hanselmann | """
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253 | ea2bcb82 | Michael Hanselmann | req = struct.pack("I", 0) |
254 | ea2bcb82 | Michael Hanselmann | try:
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255 | ea2bcb82 | Michael Hanselmann | buf = _ioctl(fd, TUNGETFEATURES, req) |
256 | ea2bcb82 | Michael Hanselmann | except EnvironmentError, err: |
257 | cfc24646 | Iustin Pop | logging.warning("ioctl(TUNGETFEATURES) failed: %s", err)
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258 | ea2bcb82 | Michael Hanselmann | return None |
259 | ea2bcb82 | Michael Hanselmann | else:
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260 | ea2bcb82 | Michael Hanselmann | (flags, ) = struct.unpack("I", buf)
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261 | ea2bcb82 | Michael Hanselmann | return flags
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262 | ea2bcb82 | Michael Hanselmann | |
263 | ea2bcb82 | Michael Hanselmann | |
264 | ea2bcb82 | Michael Hanselmann | def _ProbeTapVnetHdr(fd, _features_fn=_GetTunFeatures): |
265 | 199b2053 | Apollon Oikonomopoulos | """Check whether to enable the IFF_VNET_HDR flag.
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266 | 199b2053 | Apollon Oikonomopoulos |
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267 | 199b2053 | Apollon Oikonomopoulos | To do this, _all_ of the following conditions must be met:
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268 | 199b2053 | Apollon Oikonomopoulos | 1. TUNGETFEATURES ioctl() *must* be implemented
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269 | 199b2053 | Apollon Oikonomopoulos | 2. TUNGETFEATURES ioctl() result *must* contain the IFF_VNET_HDR flag
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270 | 199b2053 | Apollon Oikonomopoulos | 3. TUNGETIFF ioctl() *must* be implemented; reading the kernel code in
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271 | 199b2053 | Apollon Oikonomopoulos | drivers/net/tun.c there is no way to test this until after the tap device
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272 | 199b2053 | Apollon Oikonomopoulos | has been created using TUNSETIFF, and there is no way to change the
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273 | 199b2053 | Apollon Oikonomopoulos | IFF_VNET_HDR flag after creating the interface, catch-22! However both
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274 | 199b2053 | Apollon Oikonomopoulos | TUNGETIFF and TUNGETFEATURES were introduced in kernel version 2.6.27,
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275 | 199b2053 | Apollon Oikonomopoulos | thus we can expect TUNGETIFF to be present if TUNGETFEATURES is.
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276 | 199b2053 | Apollon Oikonomopoulos |
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277 | 199b2053 | Apollon Oikonomopoulos | @type fd: int
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278 | 199b2053 | Apollon Oikonomopoulos | @param fd: the file descriptor of /dev/net/tun
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279 | 199b2053 | Apollon Oikonomopoulos |
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280 | 199b2053 | Apollon Oikonomopoulos | """
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281 | ea2bcb82 | Michael Hanselmann | flags = _features_fn(fd) |
282 | 199b2053 | Apollon Oikonomopoulos | |
283 | ea2bcb82 | Michael Hanselmann | if flags is None: |
284 | ea2bcb82 | Michael Hanselmann | # Not supported
|
285 | 199b2053 | Apollon Oikonomopoulos | return False |
286 | 199b2053 | Apollon Oikonomopoulos | |
287 | ea2bcb82 | Michael Hanselmann | result = bool(flags & IFF_VNET_HDR)
|
288 | ea2bcb82 | Michael Hanselmann | |
289 | ea2bcb82 | Michael Hanselmann | if not result: |
290 | ea2bcb82 | Michael Hanselmann | logging.warning("Kernel does not support IFF_VNET_HDR, not enabling")
|
291 | ea2bcb82 | Michael Hanselmann | |
292 | ea2bcb82 | Michael Hanselmann | return result
|
293 | ea2bcb82 | Michael Hanselmann | |
294 | 199b2053 | Apollon Oikonomopoulos | |
295 | 89473be8 | Jose A. Lopes | def _OpenTap(vnet_hdr=True, name=""): |
296 | 199b2053 | Apollon Oikonomopoulos | """Open a new tap device and return its file descriptor.
|
297 | 199b2053 | Apollon Oikonomopoulos |
|
298 | 199b2053 | Apollon Oikonomopoulos | This is intended to be used by a qemu-type hypervisor together with the -net
|
299 | 199b2053 | Apollon Oikonomopoulos | tap,fd=<fd> command line parameter.
|
300 | 199b2053 | Apollon Oikonomopoulos |
|
301 | 199b2053 | Apollon Oikonomopoulos | @type vnet_hdr: boolean
|
302 | 199b2053 | Apollon Oikonomopoulos | @param vnet_hdr: Enable the VNET Header
|
303 | 89473be8 | Jose A. Lopes |
|
304 | 89473be8 | Jose A. Lopes | @type name: string
|
305 | 89473be8 | Jose A. Lopes | @param name: name for the TAP interface being created; if an empty
|
306 | 89473be8 | Jose A. Lopes | string is passed, the OS will generate a unique name
|
307 | 89473be8 | Jose A. Lopes |
|
308 | 199b2053 | Apollon Oikonomopoulos | @return: (ifname, tapfd)
|
309 | 199b2053 | Apollon Oikonomopoulos | @rtype: tuple
|
310 | 199b2053 | Apollon Oikonomopoulos |
|
311 | 199b2053 | Apollon Oikonomopoulos | """
|
312 | 199b2053 | Apollon Oikonomopoulos | try:
|
313 | 199b2053 | Apollon Oikonomopoulos | tapfd = os.open("/dev/net/tun", os.O_RDWR)
|
314 | 199b2053 | Apollon Oikonomopoulos | except EnvironmentError: |
315 | 199b2053 | Apollon Oikonomopoulos | raise errors.HypervisorError("Failed to open /dev/net/tun") |
316 | 199b2053 | Apollon Oikonomopoulos | |
317 | 199b2053 | Apollon Oikonomopoulos | flags = IFF_TAP | IFF_NO_PI |
318 | 199b2053 | Apollon Oikonomopoulos | |
319 | 199b2053 | Apollon Oikonomopoulos | if vnet_hdr and _ProbeTapVnetHdr(tapfd): |
320 | 199b2053 | Apollon Oikonomopoulos | flags |= IFF_VNET_HDR |
321 | 199b2053 | Apollon Oikonomopoulos | |
322 | 199b2053 | Apollon Oikonomopoulos | # The struct ifreq ioctl request (see netdevice(7))
|
323 | 89473be8 | Jose A. Lopes | ifr = struct.pack("16sh", name, flags)
|
324 | 199b2053 | Apollon Oikonomopoulos | |
325 | 199b2053 | Apollon Oikonomopoulos | try:
|
326 | 199b2053 | Apollon Oikonomopoulos | res = fcntl.ioctl(tapfd, TUNSETIFF, ifr) |
327 | 6f1e1921 | Michael Hanselmann | except EnvironmentError, err: |
328 | 6f1e1921 | Michael Hanselmann | raise errors.HypervisorError("Failed to allocate a new TAP device: %s" % |
329 | 6f1e1921 | Michael Hanselmann | err) |
330 | 199b2053 | Apollon Oikonomopoulos | |
331 | 199b2053 | Apollon Oikonomopoulos | # Get the interface name from the ioctl
|
332 | 199b2053 | Apollon Oikonomopoulos | ifname = struct.unpack("16sh", res)[0].strip("\x00") |
333 | 199b2053 | Apollon Oikonomopoulos | return (ifname, tapfd)
|
334 | 199b2053 | Apollon Oikonomopoulos | |
335 | 748e4b5a | Michael Hanselmann | |
336 | 364e1664 | Jose A. Lopes | class HeadRequest(urllib2.Request): |
337 | 364e1664 | Jose A. Lopes | def get_method(self): |
338 | 364e1664 | Jose A. Lopes | return "HEAD" |
339 | 364e1664 | Jose A. Lopes | |
340 | 364e1664 | Jose A. Lopes | |
341 | 27b6654e | Jose A. Lopes | def _CheckUrl(url): |
342 | 27b6654e | Jose A. Lopes | """Check if a given URL exists on the server
|
343 | 27b6654e | Jose A. Lopes |
|
344 | 27b6654e | Jose A. Lopes | """
|
345 | 27b6654e | Jose A. Lopes | try:
|
346 | 364e1664 | Jose A. Lopes | urllib2.urlopen(HeadRequest(url)) |
347 | 364e1664 | Jose A. Lopes | return True |
348 | 27b6654e | Jose A. Lopes | except urllib2.URLError:
|
349 | 27b6654e | Jose A. Lopes | return False |
350 | 27b6654e | Jose A. Lopes | |
351 | 27b6654e | Jose A. Lopes | |
352 | 91c10532 | Andrea Spadaccini | class QmpMessage: |
353 | 91c10532 | Andrea Spadaccini | """QEMU Messaging Protocol (QMP) message.
|
354 | 91c10532 | Andrea Spadaccini |
|
355 | 91c10532 | Andrea Spadaccini | """
|
356 | 91c10532 | Andrea Spadaccini | def __init__(self, data): |
357 | 91c10532 | Andrea Spadaccini | """Creates a new QMP message based on the passed data.
|
358 | 91c10532 | Andrea Spadaccini |
|
359 | 91c10532 | Andrea Spadaccini | """
|
360 | 91c10532 | Andrea Spadaccini | if not isinstance(data, dict): |
361 | 91c10532 | Andrea Spadaccini | raise TypeError("QmpMessage must be initialized with a dict") |
362 | 91c10532 | Andrea Spadaccini | |
363 | 91c10532 | Andrea Spadaccini | self.data = data
|
364 | 91c10532 | Andrea Spadaccini | |
365 | 91c10532 | Andrea Spadaccini | def __getitem__(self, field_name): |
366 | 91c10532 | Andrea Spadaccini | """Get the value of the required field if present, or None.
|
367 | 91c10532 | Andrea Spadaccini |
|
368 | 91c10532 | Andrea Spadaccini | Overrides the [] operator to provide access to the message data,
|
369 | 91c10532 | Andrea Spadaccini | returning None if the required item is not in the message
|
370 | 91c10532 | Andrea Spadaccini | @return: the value of the field_name field, or None if field_name
|
371 | 91c10532 | Andrea Spadaccini | is not contained in the message
|
372 | 91c10532 | Andrea Spadaccini |
|
373 | 91c10532 | Andrea Spadaccini | """
|
374 | 9b87c2cf | Michael Hanselmann | return self.data.get(field_name, None) |
375 | 91c10532 | Andrea Spadaccini | |
376 | 91c10532 | Andrea Spadaccini | def __setitem__(self, field_name, field_value): |
377 | 91c10532 | Andrea Spadaccini | """Set the value of the required field_name to field_value.
|
378 | 91c10532 | Andrea Spadaccini |
|
379 | 91c10532 | Andrea Spadaccini | """
|
380 | 91c10532 | Andrea Spadaccini | self.data[field_name] = field_value
|
381 | 91c10532 | Andrea Spadaccini | |
382 | 5e34123e | Michele Tartara | def __len__(self): |
383 | 5e34123e | Michele Tartara | """Return the number of fields stored in this QmpMessage.
|
384 | 5e34123e | Michele Tartara |
|
385 | 5e34123e | Michele Tartara | """
|
386 | 5e34123e | Michele Tartara | return len(self.data) |
387 | 5e34123e | Michele Tartara | |
388 | 5e34123e | Michele Tartara | def __delitem__(self, key): |
389 | 5e34123e | Michele Tartara | """Delete the specified element from the QmpMessage.
|
390 | 5e34123e | Michele Tartara |
|
391 | 5e34123e | Michele Tartara | """
|
392 | 5e34123e | Michele Tartara | del(self.data[key]) |
393 | 5e34123e | Michele Tartara | |
394 | 91c10532 | Andrea Spadaccini | @staticmethod
|
395 | 91c10532 | Andrea Spadaccini | def BuildFromJsonString(json_string): |
396 | 91c10532 | Andrea Spadaccini | """Build a QmpMessage from a JSON encoded string.
|
397 | 91c10532 | Andrea Spadaccini |
|
398 | 91c10532 | Andrea Spadaccini | @type json_string: str
|
399 | 91c10532 | Andrea Spadaccini | @param json_string: JSON string representing the message
|
400 | 91c10532 | Andrea Spadaccini | @rtype: L{QmpMessage}
|
401 | 91c10532 | Andrea Spadaccini | @return: a L{QmpMessage} built from json_string
|
402 | 91c10532 | Andrea Spadaccini |
|
403 | 91c10532 | Andrea Spadaccini | """
|
404 | 91c10532 | Andrea Spadaccini | # Parse the string
|
405 | 91c10532 | Andrea Spadaccini | data = serializer.LoadJson(json_string) |
406 | 91c10532 | Andrea Spadaccini | return QmpMessage(data)
|
407 | 91c10532 | Andrea Spadaccini | |
408 | 91c10532 | Andrea Spadaccini | def __str__(self): |
409 | a182a3ed | Michael Hanselmann | # The protocol expects the JSON object to be sent as a single line.
|
410 | a182a3ed | Michael Hanselmann | return serializer.DumpJson(self.data) |
411 | 91c10532 | Andrea Spadaccini | |
412 | 91c10532 | Andrea Spadaccini | def __eq__(self, other): |
413 | 91c10532 | Andrea Spadaccini | # When comparing two QmpMessages, we are interested in comparing
|
414 | 91c10532 | Andrea Spadaccini | # their internal representation of the message data
|
415 | 91c10532 | Andrea Spadaccini | return self.data == other.data |
416 | 91c10532 | Andrea Spadaccini | |
417 | 91c10532 | Andrea Spadaccini | |
418 | cad837b9 | Dimitris Aragiorgis | class MonitorSocket(object): |
419 | 91c10532 | Andrea Spadaccini | _SOCKET_TIMEOUT = 5
|
420 | 91c10532 | Andrea Spadaccini | |
421 | 91c10532 | Andrea Spadaccini | def __init__(self, monitor_filename): |
422 | cad837b9 | Dimitris Aragiorgis | """Instantiates the MonitorSocket object.
|
423 | 91c10532 | Andrea Spadaccini |
|
424 | 91c10532 | Andrea Spadaccini | @type monitor_filename: string
|
425 | 91c10532 | Andrea Spadaccini | @param monitor_filename: the filename of the UNIX raw socket on which the
|
426 | cad837b9 | Dimitris Aragiorgis | monitor (QMP or simple one) is listening
|
427 | 91c10532 | Andrea Spadaccini |
|
428 | 91c10532 | Andrea Spadaccini | """
|
429 | 91c10532 | Andrea Spadaccini | self.monitor_filename = monitor_filename
|
430 | 91c10532 | Andrea Spadaccini | self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
|
431 | 91c10532 | Andrea Spadaccini | # We want to fail if the server doesn't send a complete message
|
432 | 91c10532 | Andrea Spadaccini | # in a reasonable amount of time
|
433 | 91c10532 | Andrea Spadaccini | self.sock.settimeout(self._SOCKET_TIMEOUT) |
434 | 91c10532 | Andrea Spadaccini | self._connected = False |
435 | 91c10532 | Andrea Spadaccini | |
436 | fc84cd5d | Guido Trotter | def _check_socket(self): |
437 | fc84cd5d | Guido Trotter | sock_stat = None
|
438 | fc84cd5d | Guido Trotter | try:
|
439 | fc84cd5d | Guido Trotter | sock_stat = os.stat(self.monitor_filename)
|
440 | fc84cd5d | Guido Trotter | except EnvironmentError, err: |
441 | fc84cd5d | Guido Trotter | if err.errno == errno.ENOENT:
|
442 | cad837b9 | Dimitris Aragiorgis | raise errors.HypervisorError("No monitor socket found") |
443 | fc84cd5d | Guido Trotter | else:
|
444 | cad837b9 | Dimitris Aragiorgis | raise errors.HypervisorError("Error checking monitor socket: %s", |
445 | fc84cd5d | Guido Trotter | utils.ErrnoOrStr(err)) |
446 | fc84cd5d | Guido Trotter | if not stat.S_ISSOCK(sock_stat.st_mode): |
447 | cad837b9 | Dimitris Aragiorgis | raise errors.HypervisorError("Monitor socket is not a socket") |
448 | fc84cd5d | Guido Trotter | |
449 | 91c10532 | Andrea Spadaccini | def _check_connection(self): |
450 | 91c10532 | Andrea Spadaccini | """Make sure that the connection is established.
|
451 | 91c10532 | Andrea Spadaccini |
|
452 | 91c10532 | Andrea Spadaccini | """
|
453 | 91c10532 | Andrea Spadaccini | if not self._connected: |
454 | cad837b9 | Dimitris Aragiorgis | raise errors.ProgrammerError("To use a MonitorSocket you need to first" |
455 | 91c10532 | Andrea Spadaccini | " invoke connect() on it")
|
456 | 91c10532 | Andrea Spadaccini | |
457 | 91c10532 | Andrea Spadaccini | def connect(self): |
458 | cad837b9 | Dimitris Aragiorgis | """Connects to the monitor.
|
459 | 91c10532 | Andrea Spadaccini |
|
460 | cad837b9 | Dimitris Aragiorgis | Connects to the UNIX socket
|
461 | 91c10532 | Andrea Spadaccini |
|
462 | 91c10532 | Andrea Spadaccini | @raise errors.HypervisorError: when there are communication errors
|
463 | 91c10532 | Andrea Spadaccini |
|
464 | 91c10532 | Andrea Spadaccini | """
|
465 | fc84cd5d | Guido Trotter | if self._connected: |
466 | fc84cd5d | Guido Trotter | raise errors.ProgrammerError("Cannot connect twice") |
467 | fc84cd5d | Guido Trotter | |
468 | fc84cd5d | Guido Trotter | self._check_socket()
|
469 | fc84cd5d | Guido Trotter | |
470 | fc84cd5d | Guido Trotter | # Check file existance/stuff
|
471 | fc84cd5d | Guido Trotter | try:
|
472 | fc84cd5d | Guido Trotter | self.sock.connect(self.monitor_filename) |
473 | fc84cd5d | Guido Trotter | except EnvironmentError: |
474 | fc84cd5d | Guido Trotter | raise errors.HypervisorError("Can't connect to qmp socket") |
475 | 91c10532 | Andrea Spadaccini | self._connected = True |
476 | 91c10532 | Andrea Spadaccini | |
477 | cad837b9 | Dimitris Aragiorgis | def close(self): |
478 | cad837b9 | Dimitris Aragiorgis | """Closes the socket
|
479 | cad837b9 | Dimitris Aragiorgis |
|
480 | cad837b9 | Dimitris Aragiorgis | It cannot be used after this call.
|
481 | cad837b9 | Dimitris Aragiorgis |
|
482 | cad837b9 | Dimitris Aragiorgis | """
|
483 | cad837b9 | Dimitris Aragiorgis | self.sock.close()
|
484 | cad837b9 | Dimitris Aragiorgis | |
485 | cad837b9 | Dimitris Aragiorgis | |
486 | cad837b9 | Dimitris Aragiorgis | class QmpConnection(MonitorSocket): |
487 | cad837b9 | Dimitris Aragiorgis | """Connection to the QEMU Monitor using the QEMU Monitor Protocol (QMP).
|
488 | cad837b9 | Dimitris Aragiorgis |
|
489 | cad837b9 | Dimitris Aragiorgis | """
|
490 | cad837b9 | Dimitris Aragiorgis | _FIRST_MESSAGE_KEY = "QMP"
|
491 | cad837b9 | Dimitris Aragiorgis | _EVENT_KEY = "event"
|
492 | cad837b9 | Dimitris Aragiorgis | _ERROR_KEY = "error"
|
493 | cad837b9 | Dimitris Aragiorgis | _RETURN_KEY = RETURN_KEY = "return"
|
494 | cad837b9 | Dimitris Aragiorgis | _ACTUAL_KEY = ACTUAL_KEY = "actual"
|
495 | cad837b9 | Dimitris Aragiorgis | _ERROR_CLASS_KEY = "class"
|
496 | cad837b9 | Dimitris Aragiorgis | _ERROR_DESC_KEY = "desc"
|
497 | cad837b9 | Dimitris Aragiorgis | _EXECUTE_KEY = "execute"
|
498 | cad837b9 | Dimitris Aragiorgis | _ARGUMENTS_KEY = "arguments"
|
499 | cad837b9 | Dimitris Aragiorgis | _CAPABILITIES_COMMAND = "qmp_capabilities"
|
500 | cad837b9 | Dimitris Aragiorgis | _MESSAGE_END_TOKEN = "\r\n"
|
501 | cad837b9 | Dimitris Aragiorgis | |
502 | cad837b9 | Dimitris Aragiorgis | def __init__(self, monitor_filename): |
503 | cad837b9 | Dimitris Aragiorgis | super(QmpConnection, self).__init__(monitor_filename) |
504 | cad837b9 | Dimitris Aragiorgis | self._buf = "" |
505 | cad837b9 | Dimitris Aragiorgis | |
506 | cad837b9 | Dimitris Aragiorgis | def connect(self): |
507 | cad837b9 | Dimitris Aragiorgis | """Connects to the QMP monitor.
|
508 | cad837b9 | Dimitris Aragiorgis |
|
509 | cad837b9 | Dimitris Aragiorgis | Connects to the UNIX socket and makes sure that we can actually send and
|
510 | cad837b9 | Dimitris Aragiorgis | receive data to the kvm instance via QMP.
|
511 | cad837b9 | Dimitris Aragiorgis |
|
512 | cad837b9 | Dimitris Aragiorgis | @raise errors.HypervisorError: when there are communication errors
|
513 | cad837b9 | Dimitris Aragiorgis | @raise errors.ProgrammerError: when there are data serialization errors
|
514 | cad837b9 | Dimitris Aragiorgis |
|
515 | cad837b9 | Dimitris Aragiorgis | """
|
516 | cad837b9 | Dimitris Aragiorgis | super(QmpConnection, self).connect() |
517 | 91c10532 | Andrea Spadaccini | # Check if we receive a correct greeting message from the server
|
518 | 91c10532 | Andrea Spadaccini | # (As per the QEMU Protocol Specification 0.1 - section 2.2)
|
519 | 91c10532 | Andrea Spadaccini | greeting = self._Recv()
|
520 | 91c10532 | Andrea Spadaccini | if not greeting[self._FIRST_MESSAGE_KEY]: |
521 | 91c10532 | Andrea Spadaccini | self._connected = False |
522 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("kvm: QMP communication error (wrong" |
523 | 91c10532 | Andrea Spadaccini | " server greeting")
|
524 | 91c10532 | Andrea Spadaccini | |
525 | 7231ca26 | Dimitris Aragiorgis | # This is needed because QMP can return more than one greetings
|
526 | 7231ca26 | Dimitris Aragiorgis | # see https://groups.google.com/d/msg/ganeti-devel/gZYcvHKDooU/SnukC8dgS5AJ
|
527 | 7231ca26 | Dimitris Aragiorgis | self._buf = "" |
528 | 7231ca26 | Dimitris Aragiorgis | |
529 | 91c10532 | Andrea Spadaccini | # Let's put the monitor in command mode using the qmp_capabilities
|
530 | 91c10532 | Andrea Spadaccini | # command, or else no command will be executable.
|
531 | 91c10532 | Andrea Spadaccini | # (As per the QEMU Protocol Specification 0.1 - section 4)
|
532 | 91c10532 | Andrea Spadaccini | self.Execute(self._CAPABILITIES_COMMAND) |
533 | 91c10532 | Andrea Spadaccini | |
534 | 91c10532 | Andrea Spadaccini | def _ParseMessage(self, buf): |
535 | 91c10532 | Andrea Spadaccini | """Extract and parse a QMP message from the given buffer.
|
536 | 91c10532 | Andrea Spadaccini |
|
537 | 91c10532 | Andrea Spadaccini | Seeks for a QMP message in the given buf. If found, it parses it and
|
538 | 91c10532 | Andrea Spadaccini | returns it together with the rest of the characters in the buf.
|
539 | 91c10532 | Andrea Spadaccini | If no message is found, returns None and the whole buffer.
|
540 | 91c10532 | Andrea Spadaccini |
|
541 | 91c10532 | Andrea Spadaccini | @raise errors.ProgrammerError: when there are data serialization errors
|
542 | 91c10532 | Andrea Spadaccini |
|
543 | 91c10532 | Andrea Spadaccini | """
|
544 | 91c10532 | Andrea Spadaccini | message = None
|
545 | 91c10532 | Andrea Spadaccini | # Check if we got the message end token (CRLF, as per the QEMU Protocol
|
546 | 91c10532 | Andrea Spadaccini | # Specification 0.1 - Section 2.1.1)
|
547 | 91c10532 | Andrea Spadaccini | pos = buf.find(self._MESSAGE_END_TOKEN)
|
548 | 91c10532 | Andrea Spadaccini | if pos >= 0: |
549 | 91c10532 | Andrea Spadaccini | try:
|
550 | 91c10532 | Andrea Spadaccini | message = QmpMessage.BuildFromJsonString(buf[:pos + 1])
|
551 | 91c10532 | Andrea Spadaccini | except Exception, err: |
552 | 91c10532 | Andrea Spadaccini | raise errors.ProgrammerError("QMP data serialization error: %s" % err) |
553 | 91c10532 | Andrea Spadaccini | buf = buf[pos + 1:]
|
554 | 91c10532 | Andrea Spadaccini | |
555 | 91c10532 | Andrea Spadaccini | return (message, buf)
|
556 | 91c10532 | Andrea Spadaccini | |
557 | 91c10532 | Andrea Spadaccini | def _Recv(self): |
558 | 91c10532 | Andrea Spadaccini | """Receives a message from QMP and decodes the received JSON object.
|
559 | 91c10532 | Andrea Spadaccini |
|
560 | 91c10532 | Andrea Spadaccini | @rtype: QmpMessage
|
561 | 91c10532 | Andrea Spadaccini | @return: the received message
|
562 | 91c10532 | Andrea Spadaccini | @raise errors.HypervisorError: when there are communication errors
|
563 | 91c10532 | Andrea Spadaccini | @raise errors.ProgrammerError: when there are data serialization errors
|
564 | 91c10532 | Andrea Spadaccini |
|
565 | 91c10532 | Andrea Spadaccini | """
|
566 | 91c10532 | Andrea Spadaccini | self._check_connection()
|
567 | 91c10532 | Andrea Spadaccini | |
568 | 91c10532 | Andrea Spadaccini | # Check if there is already a message in the buffer
|
569 | 91c10532 | Andrea Spadaccini | (message, self._buf) = self._ParseMessage(self._buf) |
570 | 91c10532 | Andrea Spadaccini | if message:
|
571 | 91c10532 | Andrea Spadaccini | return message
|
572 | 91c10532 | Andrea Spadaccini | |
573 | 91c10532 | Andrea Spadaccini | recv_buffer = StringIO.StringIO(self._buf)
|
574 | 91c10532 | Andrea Spadaccini | recv_buffer.seek(len(self._buf)) |
575 | 91c10532 | Andrea Spadaccini | try:
|
576 | 91c10532 | Andrea Spadaccini | while True: |
577 | 91c10532 | Andrea Spadaccini | data = self.sock.recv(4096) |
578 | 91c10532 | Andrea Spadaccini | if not data: |
579 | 91c10532 | Andrea Spadaccini | break
|
580 | 91c10532 | Andrea Spadaccini | recv_buffer.write(data) |
581 | 91c10532 | Andrea Spadaccini | |
582 | 91c10532 | Andrea Spadaccini | (message, self._buf) = self._ParseMessage(recv_buffer.getvalue()) |
583 | 91c10532 | Andrea Spadaccini | if message:
|
584 | 91c10532 | Andrea Spadaccini | return message
|
585 | 91c10532 | Andrea Spadaccini | |
586 | 91c10532 | Andrea Spadaccini | except socket.timeout, err:
|
587 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("Timeout while receiving a QMP message: " |
588 | 91c10532 | Andrea Spadaccini | "%s" % (err))
|
589 | 91c10532 | Andrea Spadaccini | except socket.error, err:
|
590 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("Unable to receive data from KVM using the" |
591 | 91c10532 | Andrea Spadaccini | " QMP protocol: %s" % err)
|
592 | 91c10532 | Andrea Spadaccini | |
593 | 91c10532 | Andrea Spadaccini | def _Send(self, message): |
594 | 91c10532 | Andrea Spadaccini | """Encodes and sends a message to KVM using QMP.
|
595 | 91c10532 | Andrea Spadaccini |
|
596 | 91c10532 | Andrea Spadaccini | @type message: QmpMessage
|
597 | 91c10532 | Andrea Spadaccini | @param message: message to send to KVM
|
598 | 91c10532 | Andrea Spadaccini | @raise errors.HypervisorError: when there are communication errors
|
599 | 91c10532 | Andrea Spadaccini | @raise errors.ProgrammerError: when there are data serialization errors
|
600 | 91c10532 | Andrea Spadaccini |
|
601 | 91c10532 | Andrea Spadaccini | """
|
602 | 91c10532 | Andrea Spadaccini | self._check_connection()
|
603 | 91c10532 | Andrea Spadaccini | try:
|
604 | 91c10532 | Andrea Spadaccini | message_str = str(message)
|
605 | 91c10532 | Andrea Spadaccini | except Exception, err: |
606 | 91c10532 | Andrea Spadaccini | raise errors.ProgrammerError("QMP data deserialization error: %s" % err) |
607 | 91c10532 | Andrea Spadaccini | |
608 | 91c10532 | Andrea Spadaccini | try:
|
609 | 91c10532 | Andrea Spadaccini | self.sock.sendall(message_str)
|
610 | 91c10532 | Andrea Spadaccini | except socket.timeout, err:
|
611 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("Timeout while sending a QMP message: " |
612 | 91c10532 | Andrea Spadaccini | "%s (%s)" % (err.string, err.errno))
|
613 | 91c10532 | Andrea Spadaccini | except socket.error, err:
|
614 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("Unable to send data from KVM using the" |
615 | 91c10532 | Andrea Spadaccini | " QMP protocol: %s" % err)
|
616 | 91c10532 | Andrea Spadaccini | |
617 | 91c10532 | Andrea Spadaccini | def Execute(self, command, arguments=None): |
618 | 91c10532 | Andrea Spadaccini | """Executes a QMP command and returns the response of the server.
|
619 | 91c10532 | Andrea Spadaccini |
|
620 | 91c10532 | Andrea Spadaccini | @type command: str
|
621 | 91c10532 | Andrea Spadaccini | @param command: the command to execute
|
622 | 91c10532 | Andrea Spadaccini | @type arguments: dict
|
623 | 91c10532 | Andrea Spadaccini | @param arguments: dictionary of arguments to be passed to the command
|
624 | 91c10532 | Andrea Spadaccini | @rtype: dict
|
625 | 91c10532 | Andrea Spadaccini | @return: dictionary representing the received JSON object
|
626 | 91c10532 | Andrea Spadaccini | @raise errors.HypervisorError: when there are communication errors
|
627 | 91c10532 | Andrea Spadaccini | @raise errors.ProgrammerError: when there are data serialization errors
|
628 | 91c10532 | Andrea Spadaccini |
|
629 | 91c10532 | Andrea Spadaccini | """
|
630 | 91c10532 | Andrea Spadaccini | self._check_connection()
|
631 | 91c10532 | Andrea Spadaccini | message = QmpMessage({self._EXECUTE_KEY: command})
|
632 | 91c10532 | Andrea Spadaccini | if arguments:
|
633 | 91c10532 | Andrea Spadaccini | message[self._ARGUMENTS_KEY] = arguments
|
634 | 91c10532 | Andrea Spadaccini | self._Send(message)
|
635 | 91c10532 | Andrea Spadaccini | |
636 | 91c10532 | Andrea Spadaccini | # Events can occur between the sending of the command and the reception
|
637 | 91c10532 | Andrea Spadaccini | # of the response, so we need to filter out messages with the event key.
|
638 | 91c10532 | Andrea Spadaccini | while True: |
639 | 91c10532 | Andrea Spadaccini | response = self._Recv()
|
640 | 91c10532 | Andrea Spadaccini | err = response[self._ERROR_KEY]
|
641 | 91c10532 | Andrea Spadaccini | if err:
|
642 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("kvm: error executing the %s" |
643 | 02d17fe3 | Dimitris Aragiorgis | " command: %s (%s):" %
|
644 | 91c10532 | Andrea Spadaccini | (command, |
645 | 91c10532 | Andrea Spadaccini | err[self._ERROR_DESC_KEY],
|
646 | 02d17fe3 | Dimitris Aragiorgis | err[self._ERROR_CLASS_KEY]))
|
647 | 91c10532 | Andrea Spadaccini | |
648 | 91c10532 | Andrea Spadaccini | elif not response[self._EVENT_KEY]: |
649 | 91c10532 | Andrea Spadaccini | return response
|
650 | 91c10532 | Andrea Spadaccini | |
651 | 91c10532 | Andrea Spadaccini | |
652 | eb58f9b1 | Guido Trotter | class KVMHypervisor(hv_base.BaseHypervisor): |
653 | 65107a2f | Michael Hanselmann | """KVM hypervisor interface
|
654 | 65107a2f | Michael Hanselmann |
|
655 | 65107a2f | Michael Hanselmann | """
|
656 | d271c6fd | Iustin Pop | CAN_MIGRATE = True
|
657 | eb58f9b1 | Guido Trotter | |
658 | 9d9bded1 | Michael Hanselmann | _ROOT_DIR = pathutils.RUN_DIR + "/kvm-hypervisor"
|
659 | a1d79fc6 | Guido Trotter | _PIDS_DIR = _ROOT_DIR + "/pid" # contains live instances pids |
660 | 7548396c | Guido Trotter | _UIDS_DIR = _ROOT_DIR + "/uid" # contains instances reserved uids |
661 | a1d79fc6 | Guido Trotter | _CTRL_DIR = _ROOT_DIR + "/ctrl" # contains instances control sockets |
662 | a1d79fc6 | Guido Trotter | _CONF_DIR = _ROOT_DIR + "/conf" # contains instances startup data |
663 | 5d9bfd87 | Apollon Oikonomopoulos | _NICS_DIR = _ROOT_DIR + "/nic" # contains instances nic <-> tap associations |
664 | 4f580fef | Sรฉbastien Bocahu | _KEYMAP_DIR = _ROOT_DIR + "/keymap" # contains instances keymaps |
665 | 547a63b7 | Balazs Lecz | # KVM instances with chroot enabled are started in empty chroot directories.
|
666 | 547a63b7 | Balazs Lecz | _CHROOT_DIR = _ROOT_DIR + "/chroot" # for empty chroot directories |
667 | 547a63b7 | Balazs Lecz | # After an instance is stopped, its chroot directory is removed.
|
668 | 547a63b7 | Balazs Lecz | # If the chroot directory is not empty, it can't be removed.
|
669 | 547a63b7 | Balazs Lecz | # A non-empty chroot directory indicates a possible security incident.
|
670 | 547a63b7 | Balazs Lecz | # To support forensics, the non-empty chroot directory is quarantined in
|
671 | 547a63b7 | Balazs Lecz | # a separate directory, called 'chroot-quarantine'.
|
672 | 547a63b7 | Balazs Lecz | _CHROOT_QUARANTINE_DIR = _ROOT_DIR + "/chroot-quarantine"
|
673 | 5d9bfd87 | Apollon Oikonomopoulos | _DIRS = [_ROOT_DIR, _PIDS_DIR, _UIDS_DIR, _CTRL_DIR, _CONF_DIR, _NICS_DIR, |
674 | 2911f46c | Iustin Pop | _CHROOT_DIR, _CHROOT_QUARANTINE_DIR, _KEYMAP_DIR] |
675 | eb58f9b1 | Guido Trotter | |
676 | 205ab586 | Iustin Pop | PARAMETERS = { |
677 | 4b9638dc | Guido Trotter | constants.HV_KVM_PATH: hv_base.REQ_FILE_CHECK, |
678 | 205ab586 | Iustin Pop | constants.HV_KERNEL_PATH: hv_base.OPT_FILE_CHECK, |
679 | 205ab586 | Iustin Pop | constants.HV_INITRD_PATH: hv_base.OPT_FILE_CHECK, |
680 | 205ab586 | Iustin Pop | constants.HV_ROOT_PATH: hv_base.NO_CHECK, |
681 | 205ab586 | Iustin Pop | constants.HV_KERNEL_ARGS: hv_base.NO_CHECK, |
682 | 205ab586 | Iustin Pop | constants.HV_ACPI: hv_base.NO_CHECK, |
683 | 205ab586 | Iustin Pop | constants.HV_SERIAL_CONSOLE: hv_base.NO_CHECK, |
684 | 14fd6c81 | Guido Trotter | constants.HV_SERIAL_SPEED: hv_base.NO_CHECK, |
685 | d6e5767e | Klaus Aehlig | constants.HV_VNC_BIND_ADDRESS: hv_base.NO_CHECK, # will be checked later
|
686 | 205ab586 | Iustin Pop | constants.HV_VNC_TLS: hv_base.NO_CHECK, |
687 | 205ab586 | Iustin Pop | constants.HV_VNC_X509: hv_base.OPT_DIR_CHECK, |
688 | 205ab586 | Iustin Pop | constants.HV_VNC_X509_VERIFY: hv_base.NO_CHECK, |
689 | 6e6bb8d5 | Guido Trotter | constants.HV_VNC_PASSWORD_FILE: hv_base.OPT_FILE_CHECK, |
690 | b1cb62bd | Andrea Spadaccini | constants.HV_KVM_SPICE_BIND: hv_base.NO_CHECK, # will be checked later
|
691 | b1cb62bd | Andrea Spadaccini | constants.HV_KVM_SPICE_IP_VERSION: |
692 | b1cb62bd | Andrea Spadaccini | (False, lambda x: (x == constants.IFACE_NO_IP_VERSION_SPECIFIED or |
693 | b1cb62bd | Andrea Spadaccini | x in constants.VALID_IP_VERSIONS),
|
694 | afa9bb2e | Michael Hanselmann | "The SPICE IP version should be 4 or 6",
|
695 | b1cb62bd | Andrea Spadaccini | None, None), |
696 | b451c4c7 | Andrea Spadaccini | constants.HV_KVM_SPICE_PASSWORD_FILE: hv_base.OPT_FILE_CHECK, |
697 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_LOSSLESS_IMG_COMPR: |
698 | 5ae4945a | Iustin Pop | hv_base.ParamInSet( |
699 | 5ae4945a | Iustin Pop | False, constants.HT_KVM_SPICE_VALID_LOSSLESS_IMG_COMPR_OPTIONS),
|
700 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_JPEG_IMG_COMPR: |
701 | 5ae4945a | Iustin Pop | hv_base.ParamInSet( |
702 | 5ae4945a | Iustin Pop | False, constants.HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS),
|
703 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: |
704 | 5ae4945a | Iustin Pop | hv_base.ParamInSet( |
705 | 5ae4945a | Iustin Pop | False, constants.HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS),
|
706 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: |
707 | 5ae4945a | Iustin Pop | hv_base.ParamInSet( |
708 | 5ae4945a | Iustin Pop | False, constants.HT_KVM_SPICE_VALID_VIDEO_STREAM_DETECTION_OPTIONS),
|
709 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_AUDIO_COMPR: hv_base.NO_CHECK, |
710 | bfe86c76 | Andrea Spadaccini | constants.HV_KVM_SPICE_USE_TLS: hv_base.NO_CHECK, |
711 | 3e40b587 | Andrea Spadaccini | constants.HV_KVM_SPICE_TLS_CIPHERS: hv_base.NO_CHECK, |
712 | 3e40b587 | Andrea Spadaccini | constants.HV_KVM_SPICE_USE_VDAGENT: hv_base.NO_CHECK, |
713 | cc130cc7 | Marco Casavecchia | constants.HV_KVM_FLOPPY_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
714 | f15a6b03 | Jose A. Lopes | constants.HV_CDROM_IMAGE_PATH: hv_base.OPT_FILE_OR_URL_CHECK, |
715 | 364e1664 | Jose A. Lopes | constants.HV_KVM_CDROM2_IMAGE_PATH: hv_base.OPT_FILE_OR_URL_CHECK, |
716 | d73ef63f | Michael Hanselmann | constants.HV_BOOT_ORDER: |
717 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_BO_TYPES),
|
718 | d73ef63f | Michael Hanselmann | constants.HV_NIC_TYPE: |
719 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_NIC_TYPES),
|
720 | d73ef63f | Michael Hanselmann | constants.HV_DISK_TYPE: |
721 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_DISK_TYPES),
|
722 | cc130cc7 | Marco Casavecchia | constants.HV_KVM_CDROM_DISK_TYPE: |
723 | cc130cc7 | Marco Casavecchia | hv_base.ParamInSet(False, constants.HT_KVM_VALID_DISK_TYPES),
|
724 | d73ef63f | Michael Hanselmann | constants.HV_USB_MOUSE: |
725 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(False, constants.HT_KVM_VALID_MOUSE_TYPES),
|
726 | 4f580fef | Sรฉbastien Bocahu | constants.HV_KEYMAP: hv_base.NO_CHECK, |
727 | e2d14329 | Andrea Spadaccini | constants.HV_MIGRATION_PORT: hv_base.REQ_NET_PORT_CHECK, |
728 | 2c368f28 | Guido Trotter | constants.HV_MIGRATION_BANDWIDTH: hv_base.REQ_NONNEGATIVE_INT_CHECK, |
729 | 2c368f28 | Guido Trotter | constants.HV_MIGRATION_DOWNTIME: hv_base.REQ_NONNEGATIVE_INT_CHECK, |
730 | 783a6c0b | Iustin Pop | constants.HV_MIGRATION_MODE: hv_base.MIGRATION_MODE_CHECK, |
731 | 6b970cef | Jun Futagawa | constants.HV_USE_LOCALTIME: hv_base.NO_CHECK, |
732 | 19572932 | Iustin Pop | constants.HV_DISK_CACHE: |
733 | 19572932 | Iustin Pop | hv_base.ParamInSet(True, constants.HT_VALID_CACHE_TYPES),
|
734 | d19d94db | Guido Trotter | constants.HV_SECURITY_MODEL: |
735 | d19d94db | Guido Trotter | hv_base.ParamInSet(True, constants.HT_KVM_VALID_SM_TYPES),
|
736 | d19d94db | Guido Trotter | constants.HV_SECURITY_DOMAIN: hv_base.NO_CHECK, |
737 | 7ba594c0 | Guido Trotter | constants.HV_KVM_FLAG: |
738 | 7ba594c0 | Guido Trotter | hv_base.ParamInSet(False, constants.HT_KVM_FLAG_VALUES),
|
739 | fbe27e2b | Guido Trotter | constants.HV_VHOST_NET: hv_base.NO_CHECK, |
740 | 547a63b7 | Balazs Lecz | constants.HV_KVM_USE_CHROOT: hv_base.NO_CHECK, |
741 | afa0fca4 | Jose A. Lopes | constants.HV_KVM_USER_SHUTDOWN: hv_base.NO_CHECK, |
742 | 4f958b0b | Miguel Di Ciurcio Filho | constants.HV_MEM_PATH: hv_base.OPT_DIR_CHECK, |
743 | 990ade2d | Stephen Shirley | constants.HV_REBOOT_BEHAVIOR: |
744 | a7f884d3 | Tsachy Shacham | hv_base.ParamInSet(True, constants.REBOOT_BEHAVIORS),
|
745 | a7f884d3 | Tsachy Shacham | constants.HV_CPU_MASK: hv_base.OPT_MULTI_CPU_MASK_CHECK, |
746 | 3c286190 | Dimitris Aragiorgis | constants.HV_CPU_TYPE: hv_base.NO_CHECK, |
747 | 2c368f28 | Guido Trotter | constants.HV_CPU_CORES: hv_base.OPT_NONNEGATIVE_INT_CHECK, |
748 | 2c368f28 | Guido Trotter | constants.HV_CPU_THREADS: hv_base.OPT_NONNEGATIVE_INT_CHECK, |
749 | 2c368f28 | Guido Trotter | constants.HV_CPU_SOCKETS: hv_base.OPT_NONNEGATIVE_INT_CHECK, |
750 | 2fddb144 | Guido Trotter | constants.HV_SOUNDHW: hv_base.NO_CHECK, |
751 | 156681c1 | Guido Trotter | constants.HV_USB_DEVICES: hv_base.NO_CHECK, |
752 | 7589346f | Guido Trotter | constants.HV_VGA: hv_base.NO_CHECK, |
753 | e6f24d89 | Guido Trotter | constants.HV_KVM_EXTRA: hv_base.NO_CHECK, |
754 | 4ab75599 | Dimitris Aragiorgis | constants.HV_KVM_MACHINE_VERSION: hv_base.NO_CHECK, |
755 | 937ff984 | Dimitris Aragiorgis | constants.HV_KVM_MIGRATION_CAPS: hv_base.NO_CHECK, |
756 | 8a534fbe | Stratos Psomdakis | constants.HV_VNET_HDR: hv_base.NO_CHECK, |
757 | 205ab586 | Iustin Pop | } |
758 | 6b5605e8 | Iustin Pop | |
759 | f0db563d | Guido Trotter | _VIRTIO = "virtio"
|
760 | f0db563d | Guido Trotter | _VIRTIO_NET_PCI = "virtio-net-pci"
|
761 | a16f0d77 | Dimitris Aragiorgis | _VIRTIO_BLK_PCI = "virtio-blk-pci"
|
762 | f0db563d | Guido Trotter | |
763 | 78f99abb | Michele Tartara | _MIGRATION_STATUS_RE = re.compile(r"Migration\s+status:\s+(\w+)",
|
764 | 30e42c4e | Guido Trotter | re.M | re.I) |
765 | 65107a2f | Michael Hanselmann | _MIGRATION_PROGRESS_RE = \ |
766 | 527c0cf7 | Michael Hanselmann | re.compile(r"\s*transferred\s+ram:\s+(?P<transferred>\d+)\s+kbytes\s*\n"
|
767 | 527c0cf7 | Michael Hanselmann | r"\s*remaining\s+ram:\s+(?P<remaining>\d+)\s+kbytes\s*\n"
|
768 | 527c0cf7 | Michael Hanselmann | r"\s*total\s+ram:\s+(?P<total>\d+)\s+kbytes\s*\n", re.I)
|
769 | 61643226 | Andrea Spadaccini | |
770 | c4e388a5 | Guido Trotter | _MIGRATION_INFO_MAX_BAD_ANSWERS = 5
|
771 | c4e388a5 | Guido Trotter | _MIGRATION_INFO_RETRY_DELAY = 2
|
772 | 30e42c4e | Guido Trotter | |
773 | 585c8187 | Guido Trotter | _VERSION_RE = re.compile(r"\b(\d+)\.(\d+)(\.(\d+))?\b")
|
774 | b52d85c1 | Guido Trotter | |
775 | b693125f | Tsachy Shacham | _CPU_INFO_RE = re.compile(r"cpu\s+\#(\d+).*thread_id\s*=\s*(\d+)", re.I)
|
776 | b693125f | Tsachy Shacham | _CPU_INFO_CMD = "info cpus"
|
777 | b693125f | Tsachy Shacham | _CONT_CMD = "cont"
|
778 | b693125f | Tsachy Shacham | |
779 | 7f83345f | Guido Trotter | _DEFAULT_MACHINE_VERSION_RE = re.compile(r"^(\S+).*\(default\)", re.M)
|
780 | 82e3bf85 | Dimitris Aragiorgis | _CHECK_MACHINE_VERSION_RE = \ |
781 | 82e3bf85 | Dimitris Aragiorgis | staticmethod(lambda x: re.compile(r"^(%s)[ ]+.*PC" % x, re.M)) |
782 | e6ba3320 | Dimitris Aragiorgis | |
783 | 0ad7f5d8 | Guido Trotter | _QMP_RE = re.compile(r"^-qmp\s", re.M)
|
784 | 0ad7f5d8 | Guido Trotter | _SPICE_RE = re.compile(r"^-spice\s", re.M)
|
785 | 0ad7f5d8 | Guido Trotter | _VHOST_RE = re.compile(r"^-net\s.*,vhost=on|off", re.M)
|
786 | 0ad7f5d8 | Guido Trotter | _ENABLE_KVM_RE = re.compile(r"^-enable-kvm\s", re.M)
|
787 | 0ad7f5d8 | Guido Trotter | _DISABLE_KVM_RE = re.compile(r"^-disable-kvm\s", re.M)
|
788 | 0ad7f5d8 | Guido Trotter | _NETDEV_RE = re.compile(r"^-netdev\s", re.M)
|
789 | 99c7cd5b | Guido Trotter | _DISPLAY_RE = re.compile(r"^-display\s", re.M)
|
790 | 8cb5634a | Guido Trotter | _MACHINE_RE = re.compile(r"^-machine\s", re.M)
|
791 | a16f0d77 | Dimitris Aragiorgis | _VIRTIO_NET_RE = re.compile(r"^name \"%s\"" % _VIRTIO_NET_PCI, re.M)
|
792 | a16f0d77 | Dimitris Aragiorgis | _VIRTIO_BLK_RE = re.compile(r"^name \"%s\"" % _VIRTIO_BLK_PCI, re.M)
|
793 | 0ad7f5d8 | Guido Trotter | # match -drive.*boot=on|off on different lines, but in between accept only
|
794 | 0ad7f5d8 | Guido Trotter | # dashes not preceeded by a new line (which would mean another option
|
795 | 0ad7f5d8 | Guido Trotter | # different than -drive is starting)
|
796 | 0ad7f5d8 | Guido Trotter | _BOOT_RE = re.compile(r"^-drive\s([^-]|(?<!^)-)*,boot=on\|off", re.M | re.S)
|
797 | 8feeb253 | Christos Stavrakakis | _UUID_RE = re.compile(r"^-uuid\s", re.M)
|
798 | 0ad7f5d8 | Guido Trotter | |
799 | 2615646c | Dimitris Aragiorgis | _INFO_PCI_RE = re.compile(r'Bus.*device[ ]*(\d+).*')
|
800 | 2615646c | Dimitris Aragiorgis | _INFO_PCI_CMD = "info pci"
|
801 | 066f16b0 | Dimitris Aragiorgis | _FIND_PCI_DEVICE_RE = \ |
802 | 066f16b0 | Dimitris Aragiorgis | staticmethod(
|
803 | 066f16b0 | Dimitris Aragiorgis | lambda pci, devid: re.compile(r'Bus.*device[ ]*%d,(.*\n){5,6}.*id "%s"' % |
804 | 066f16b0 | Dimitris Aragiorgis | (pci, devid), re.M)) |
805 | 066f16b0 | Dimitris Aragiorgis | |
806 | 2615646c | Dimitris Aragiorgis | _INFO_VERSION_RE = \ |
807 | 2615646c | Dimitris Aragiorgis | re.compile(r'^QEMU (\d+)\.(\d+)(\.(\d+))?.*monitor.*', re.M)
|
808 | 2615646c | Dimitris Aragiorgis | _INFO_VERSION_CMD = "info version"
|
809 | 2615646c | Dimitris Aragiorgis | |
810 | 3a72e34a | Dimitris Aragiorgis | # Slot 0 for Host bridge, Slot 1 for ISA bridge, Slot 2 for VGA controller
|
811 | 3a72e34a | Dimitris Aragiorgis | _DEFAULT_PCI_RESERVATIONS = "11100000000000000000000000000000"
|
812 | 3a72e34a | Dimitris Aragiorgis | _SOUNDHW_WITH_PCI_SLOT = ["ac97", "es1370", "hda"] |
813 | 2615646c | Dimitris Aragiorgis | |
814 | 64bfbc08 | Guido Trotter | ANCILLARY_FILES = [ |
815 | 64bfbc08 | Guido Trotter | _KVM_NETWORK_SCRIPT, |
816 | 64bfbc08 | Guido Trotter | ] |
817 | 69ab2e12 | Guido Trotter | ANCILLARY_FILES_OPT = [ |
818 | 69ab2e12 | Guido Trotter | _KVM_NETWORK_SCRIPT, |
819 | 69ab2e12 | Guido Trotter | ] |
820 | 64bfbc08 | Guido Trotter | |
821 | 6e043e60 | Guido Trotter | # Supported kvm options to get output from
|
822 | 6e043e60 | Guido Trotter | _KVMOPT_HELP = "help"
|
823 | 6e043e60 | Guido Trotter | _KVMOPT_MLIST = "mlist"
|
824 | f0db563d | Guido Trotter | _KVMOPT_DEVICELIST = "devicelist"
|
825 | bc0fed4b | Guido Trotter | |
826 | bc0fed4b | Guido Trotter | # Command to execute to get the output from kvm, and whether to
|
827 | bc0fed4b | Guido Trotter | # accept the output even on failure.
|
828 | 6e043e60 | Guido Trotter | _KVMOPTS_CMDS = { |
829 | bc0fed4b | Guido Trotter | _KVMOPT_HELP: (["--help"], False), |
830 | bc0fed4b | Guido Trotter | _KVMOPT_MLIST: (["-M", "?"], False), |
831 | bc0fed4b | Guido Trotter | _KVMOPT_DEVICELIST: (["-device", "?"], True), |
832 | 6e043e60 | Guido Trotter | } |
833 | 6e043e60 | Guido Trotter | |
834 | eb58f9b1 | Guido Trotter | def __init__(self): |
835 | eb58f9b1 | Guido Trotter | hv_base.BaseHypervisor.__init__(self)
|
836 | eb58f9b1 | Guido Trotter | # Let's make sure the directories we need exist, even if the RUN_DIR lives
|
837 | eb58f9b1 | Guido Trotter | # in a tmpfs filesystem or has been otherwise wiped out.
|
838 | 29921401 | Iustin Pop | dirs = [(dname, constants.RUN_DIRS_MODE) for dname in self._DIRS] |
839 | 9afb67fe | Guido Trotter | utils.EnsureDirs(dirs) |
840 | eb58f9b1 | Guido Trotter | |
841 | 30786fc9 | Iustin Pop | @classmethod
|
842 | 30786fc9 | Iustin Pop | def _InstancePidFile(cls, instance_name): |
843 | 98ec75d6 | Iustin Pop | """Returns the instance pidfile.
|
844 | 98ec75d6 | Iustin Pop |
|
845 | 98ec75d6 | Iustin Pop | """
|
846 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._PIDS_DIR, instance_name)
|
847 | 98ec75d6 | Iustin Pop | |
848 | 263b8de6 | Guido Trotter | @classmethod
|
849 | 7548396c | Guido Trotter | def _InstanceUidFile(cls, instance_name): |
850 | 7548396c | Guido Trotter | """Returns the instance uidfile.
|
851 | 7548396c | Guido Trotter |
|
852 | 7548396c | Guido Trotter | """
|
853 | 7548396c | Guido Trotter | return utils.PathJoin(cls._UIDS_DIR, instance_name)
|
854 | 7548396c | Guido Trotter | |
855 | 7548396c | Guido Trotter | @classmethod
|
856 | 263b8de6 | Guido Trotter | def _InstancePidInfo(cls, pid): |
857 | 263b8de6 | Guido Trotter | """Check pid file for instance information.
|
858 | 263b8de6 | Guido Trotter |
|
859 | 263b8de6 | Guido Trotter | Check that a pid file is associated with an instance, and retrieve
|
860 | 263b8de6 | Guido Trotter | information from its command line.
|
861 | 263b8de6 | Guido Trotter |
|
862 | 263b8de6 | Guido Trotter | @type pid: string or int
|
863 | 263b8de6 | Guido Trotter | @param pid: process id of the instance to check
|
864 | 263b8de6 | Guido Trotter | @rtype: tuple
|
865 | 263b8de6 | Guido Trotter | @return: (instance_name, memory, vcpus)
|
866 | 263b8de6 | Guido Trotter | @raise errors.HypervisorError: when an instance cannot be found
|
867 | 263b8de6 | Guido Trotter |
|
868 | 263b8de6 | Guido Trotter | """
|
869 | 263b8de6 | Guido Trotter | alive = utils.IsProcessAlive(pid) |
870 | 263b8de6 | Guido Trotter | if not alive: |
871 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Cannot get info for pid %s" % pid) |
872 | 263b8de6 | Guido Trotter | |
873 | 263b8de6 | Guido Trotter | cmdline_file = utils.PathJoin("/proc", str(pid), "cmdline") |
874 | 263b8de6 | Guido Trotter | try:
|
875 | 263b8de6 | Guido Trotter | cmdline = utils.ReadFile(cmdline_file) |
876 | 263b8de6 | Guido Trotter | except EnvironmentError, err: |
877 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Can't open cmdline file for pid %s: %s" % |
878 | 263b8de6 | Guido Trotter | (pid, err)) |
879 | 263b8de6 | Guido Trotter | |
880 | 263b8de6 | Guido Trotter | instance = None
|
881 | 263b8de6 | Guido Trotter | memory = 0
|
882 | 263b8de6 | Guido Trotter | vcpus = 0
|
883 | 263b8de6 | Guido Trotter | |
884 | d0c8c01d | Iustin Pop | arg_list = cmdline.split("\x00")
|
885 | 263b8de6 | Guido Trotter | while arg_list:
|
886 | e687ec01 | Michael Hanselmann | arg = arg_list.pop(0)
|
887 | 263b8de6 | Guido Trotter | if arg == "-name": |
888 | 263b8de6 | Guido Trotter | instance = arg_list.pop(0)
|
889 | 263b8de6 | Guido Trotter | elif arg == "-m": |
890 | 263b8de6 | Guido Trotter | memory = int(arg_list.pop(0)) |
891 | 263b8de6 | Guido Trotter | elif arg == "-smp": |
892 | 4888a609 | Guido Trotter | vcpus = int(arg_list.pop(0).split(",")[0]) |
893 | 263b8de6 | Guido Trotter | |
894 | 263b8de6 | Guido Trotter | if instance is None: |
895 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Pid %s doesn't contain a ganeti kvm" |
896 | 263b8de6 | Guido Trotter | " instance" % pid)
|
897 | 263b8de6 | Guido Trotter | |
898 | 263b8de6 | Guido Trotter | return (instance, memory, vcpus)
|
899 | 263b8de6 | Guido Trotter | |
900 | 70f25a49 | Jose A. Lopes | @classmethod
|
901 | 70f25a49 | Jose A. Lopes | def _InstancePidAlive(cls, instance_name): |
902 | 263b8de6 | Guido Trotter | """Returns the instance pidfile, pid, and liveness.
|
903 | 263b8de6 | Guido Trotter |
|
904 | 263b8de6 | Guido Trotter | @type instance_name: string
|
905 | 263b8de6 | Guido Trotter | @param instance_name: instance name
|
906 | 263b8de6 | Guido Trotter | @rtype: tuple
|
907 | 263b8de6 | Guido Trotter | @return: (pid file name, pid, liveness)
|
908 | 1f8b3a27 | Guido Trotter |
|
909 | 1f8b3a27 | Guido Trotter | """
|
910 | 70f25a49 | Jose A. Lopes | pidfile = cls._InstancePidFile(instance_name) |
911 | 1f8b3a27 | Guido Trotter | pid = utils.ReadPidFile(pidfile) |
912 | 263b8de6 | Guido Trotter | |
913 | 263b8de6 | Guido Trotter | alive = False
|
914 | 263b8de6 | Guido Trotter | try:
|
915 | 70f25a49 | Jose A. Lopes | cmd_instance = cls._InstancePidInfo(pid)[0]
|
916 | 263b8de6 | Guido Trotter | alive = (cmd_instance == instance_name) |
917 | 263b8de6 | Guido Trotter | except errors.HypervisorError:
|
918 | 263b8de6 | Guido Trotter | pass
|
919 | 1f8b3a27 | Guido Trotter | |
920 | 1f8b3a27 | Guido Trotter | return (pidfile, pid, alive)
|
921 | 1f8b3a27 | Guido Trotter | |
922 | 70f25a49 | Jose A. Lopes | @classmethod
|
923 | 70f25a49 | Jose A. Lopes | def _CheckDown(cls, instance_name): |
924 | 5905901c | Iustin Pop | """Raises an error unless the given instance is down.
|
925 | 5905901c | Iustin Pop |
|
926 | 5905901c | Iustin Pop | """
|
927 | 70f25a49 | Jose A. Lopes | alive = cls._InstancePidAlive(instance_name)[2]
|
928 | 5905901c | Iustin Pop | if alive:
|
929 | 5905901c | Iustin Pop | raise errors.HypervisorError("Failed to start instance %s: %s" % |
930 | 5905901c | Iustin Pop | (instance_name, "already running"))
|
931 | 5905901c | Iustin Pop | |
932 | 0df4d98a | Guido Trotter | @classmethod
|
933 | 0df4d98a | Guido Trotter | def _InstanceMonitor(cls, instance_name): |
934 | c4fbefc8 | Guido Trotter | """Returns the instance monitor socket name
|
935 | c4fbefc8 | Guido Trotter |
|
936 | c4fbefc8 | Guido Trotter | """
|
937 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CTRL_DIR, "%s.monitor" % instance_name) |
938 | c4fbefc8 | Guido Trotter | |
939 | 0df4d98a | Guido Trotter | @classmethod
|
940 | 0df4d98a | Guido Trotter | def _InstanceSerial(cls, instance_name): |
941 | c4fbefc8 | Guido Trotter | """Returns the instance serial socket name
|
942 | c4fbefc8 | Guido Trotter |
|
943 | c4fbefc8 | Guido Trotter | """
|
944 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CTRL_DIR, "%s.serial" % instance_name) |
945 | c4fbefc8 | Guido Trotter | |
946 | 91c10532 | Andrea Spadaccini | @classmethod
|
947 | 91c10532 | Andrea Spadaccini | def _InstanceQmpMonitor(cls, instance_name): |
948 | 91c10532 | Andrea Spadaccini | """Returns the instance serial QMP socket name
|
949 | 91c10532 | Andrea Spadaccini |
|
950 | 91c10532 | Andrea Spadaccini | """
|
951 | 91c10532 | Andrea Spadaccini | return utils.PathJoin(cls._CTRL_DIR, "%s.qmp" % instance_name) |
952 | 91c10532 | Andrea Spadaccini | |
953 | 95d70148 | Jose A. Lopes | @classmethod
|
954 | 95d70148 | Jose A. Lopes | def _InstanceShutdownMonitor(cls, instance_name): |
955 | 95d70148 | Jose A. Lopes | """Returns the instance QMP output filename
|
956 | 95d70148 | Jose A. Lopes |
|
957 | 95d70148 | Jose A. Lopes | """
|
958 | 95d70148 | Jose A. Lopes | return utils.PathJoin(cls._CTRL_DIR, "%s.shutdown" % instance_name) |
959 | 95d70148 | Jose A. Lopes | |
960 | 86d6bc2a | Guido Trotter | @staticmethod
|
961 | 86d6bc2a | Guido Trotter | def _SocatUnixConsoleParams(): |
962 | 86d6bc2a | Guido Trotter | """Returns the correct parameters for socat
|
963 | 86d6bc2a | Guido Trotter |
|
964 | 86d6bc2a | Guido Trotter | If we have a new-enough socat we can use raw mode with an escape character.
|
965 | 86d6bc2a | Guido Trotter |
|
966 | 86d6bc2a | Guido Trotter | """
|
967 | fe5b0c42 | Michael Hanselmann | if constants.SOCAT_USE_ESCAPE:
|
968 | 86d6bc2a | Guido Trotter | return "raw,echo=0,escape=%s" % constants.SOCAT_ESCAPE_CODE |
969 | 86d6bc2a | Guido Trotter | else:
|
970 | 86d6bc2a | Guido Trotter | return "echo=0,icanon=0" |
971 | 86d6bc2a | Guido Trotter | |
972 | 0df4d98a | Guido Trotter | @classmethod
|
973 | 0df4d98a | Guido Trotter | def _InstanceKVMRuntime(cls, instance_name): |
974 | 38e250ba | Guido Trotter | """Returns the instance KVM runtime filename
|
975 | 38e250ba | Guido Trotter |
|
976 | 38e250ba | Guido Trotter | """
|
977 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CONF_DIR, "%s.runtime" % instance_name) |
978 | 38e250ba | Guido Trotter | |
979 | 7e66c35b | Guido Trotter | @classmethod
|
980 | 547a63b7 | Balazs Lecz | def _InstanceChrootDir(cls, instance_name): |
981 | 547a63b7 | Balazs Lecz | """Returns the name of the KVM chroot dir of the instance
|
982 | 547a63b7 | Balazs Lecz |
|
983 | 547a63b7 | Balazs Lecz | """
|
984 | 547a63b7 | Balazs Lecz | return utils.PathJoin(cls._CHROOT_DIR, instance_name)
|
985 | 547a63b7 | Balazs Lecz | |
986 | 547a63b7 | Balazs Lecz | @classmethod
|
987 | 5d9bfd87 | Apollon Oikonomopoulos | def _InstanceNICDir(cls, instance_name): |
988 | 5d9bfd87 | Apollon Oikonomopoulos | """Returns the name of the directory holding the tap device files for a
|
989 | 5d9bfd87 | Apollon Oikonomopoulos | given instance.
|
990 | 5d9bfd87 | Apollon Oikonomopoulos |
|
991 | 5d9bfd87 | Apollon Oikonomopoulos | """
|
992 | 5d9bfd87 | Apollon Oikonomopoulos | return utils.PathJoin(cls._NICS_DIR, instance_name)
|
993 | 5d9bfd87 | Apollon Oikonomopoulos | |
994 | 5d9bfd87 | Apollon Oikonomopoulos | @classmethod
|
995 | 5d9bfd87 | Apollon Oikonomopoulos | def _InstanceNICFile(cls, instance_name, seq): |
996 | 5d9bfd87 | Apollon Oikonomopoulos | """Returns the name of the file containing the tap device for a given NIC
|
997 | 5d9bfd87 | Apollon Oikonomopoulos |
|
998 | 5d9bfd87 | Apollon Oikonomopoulos | """
|
999 | 5d9bfd87 | Apollon Oikonomopoulos | return utils.PathJoin(cls._InstanceNICDir(instance_name), str(seq)) |
1000 | 5d9bfd87 | Apollon Oikonomopoulos | |
1001 | 5d9bfd87 | Apollon Oikonomopoulos | @classmethod
|
1002 | 4f580fef | Sรฉbastien Bocahu | def _InstanceKeymapFile(cls, instance_name): |
1003 | 4f580fef | Sรฉbastien Bocahu | """Returns the name of the file containing the keymap for a given instance
|
1004 | 4f580fef | Sรฉbastien Bocahu |
|
1005 | 4f580fef | Sรฉbastien Bocahu | """
|
1006 | 4f580fef | Sรฉbastien Bocahu | return utils.PathJoin(cls._KEYMAP_DIR, instance_name)
|
1007 | 4f580fef | Sรฉbastien Bocahu | |
1008 | 4f580fef | Sรฉbastien Bocahu | @classmethod
|
1009 | 7548396c | Guido Trotter | def _TryReadUidFile(cls, uid_file): |
1010 | 7548396c | Guido Trotter | """Try to read a uid file
|
1011 | 7548396c | Guido Trotter |
|
1012 | 7548396c | Guido Trotter | """
|
1013 | 7548396c | Guido Trotter | if os.path.exists(uid_file):
|
1014 | 7548396c | Guido Trotter | try:
|
1015 | 682f7601 | Guido Trotter | uid = int(utils.ReadOneLineFile(uid_file))
|
1016 | aa0b600b | Guido Trotter | return uid
|
1017 | 7548396c | Guido Trotter | except EnvironmentError: |
1018 | 7548396c | Guido Trotter | logging.warning("Can't read uid file", exc_info=True) |
1019 | 7548396c | Guido Trotter | except (TypeError, ValueError): |
1020 | 7548396c | Guido Trotter | logging.warning("Can't parse uid file contents", exc_info=True) |
1021 | aa0b600b | Guido Trotter | return None |
1022 | 7548396c | Guido Trotter | |
1023 | 7548396c | Guido Trotter | @classmethod
|
1024 | 7e66c35b | Guido Trotter | def _RemoveInstanceRuntimeFiles(cls, pidfile, instance_name): |
1025 | 547a63b7 | Balazs Lecz | """Removes an instance's rutime sockets/files/dirs.
|
1026 | 7e66c35b | Guido Trotter |
|
1027 | 7e66c35b | Guido Trotter | """
|
1028 | 7e66c35b | Guido Trotter | utils.RemoveFile(pidfile) |
1029 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceMonitor(instance_name)) |
1030 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceSerial(instance_name)) |
1031 | 91c10532 | Andrea Spadaccini | utils.RemoveFile(cls._InstanceQmpMonitor(instance_name)) |
1032 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceKVMRuntime(instance_name)) |
1033 | 4f580fef | Sรฉbastien Bocahu | utils.RemoveFile(cls._InstanceKeymapFile(instance_name)) |
1034 | 7548396c | Guido Trotter | uid_file = cls._InstanceUidFile(instance_name) |
1035 | 7548396c | Guido Trotter | uid = cls._TryReadUidFile(uid_file) |
1036 | 7548396c | Guido Trotter | utils.RemoveFile(uid_file) |
1037 | 7548396c | Guido Trotter | if uid is not None: |
1038 | 7548396c | Guido Trotter | uidpool.ReleaseUid(uid) |
1039 | 7be85163 | Guido Trotter | try:
|
1040 | 7be85163 | Guido Trotter | shutil.rmtree(cls._InstanceNICDir(instance_name)) |
1041 | 7be85163 | Guido Trotter | except OSError, err: |
1042 | 7be85163 | Guido Trotter | if err.errno != errno.ENOENT:
|
1043 | 7be85163 | Guido Trotter | raise
|
1044 | 547a63b7 | Balazs Lecz | try:
|
1045 | 547a63b7 | Balazs Lecz | chroot_dir = cls._InstanceChrootDir(instance_name) |
1046 | 547a63b7 | Balazs Lecz | utils.RemoveDir(chroot_dir) |
1047 | 547a63b7 | Balazs Lecz | except OSError, err: |
1048 | 547a63b7 | Balazs Lecz | if err.errno == errno.ENOTEMPTY:
|
1049 | 547a63b7 | Balazs Lecz | # The chroot directory is expected to be empty, but it isn't.
|
1050 | 547a63b7 | Balazs Lecz | new_chroot_dir = tempfile.mkdtemp(dir=cls._CHROOT_QUARANTINE_DIR, |
1051 | 547a63b7 | Balazs Lecz | prefix="%s-%s-" %
|
1052 | 547a63b7 | Balazs Lecz | (instance_name, |
1053 | 547a63b7 | Balazs Lecz | utils.TimestampForFilename())) |
1054 | 547a63b7 | Balazs Lecz | logging.warning("The chroot directory of instance %s can not be"
|
1055 | 547a63b7 | Balazs Lecz | " removed as it is not empty. Moving it to the"
|
1056 | 547a63b7 | Balazs Lecz | " quarantine instead. Please investigate the"
|
1057 | 547a63b7 | Balazs Lecz | " contents (%s) and clean up manually",
|
1058 | 547a63b7 | Balazs Lecz | instance_name, new_chroot_dir) |
1059 | 547a63b7 | Balazs Lecz | utils.RenameFile(chroot_dir, new_chroot_dir) |
1060 | 547a63b7 | Balazs Lecz | else:
|
1061 | 547a63b7 | Balazs Lecz | raise
|
1062 | 7e66c35b | Guido Trotter | |
1063 | 748e4b5a | Michael Hanselmann | @staticmethod
|
1064 | 5d9bfd87 | Apollon Oikonomopoulos | def _ConfigureNIC(instance, seq, nic, tap): |
1065 | 5d9bfd87 | Apollon Oikonomopoulos | """Run the network configuration script for a specified NIC
|
1066 | eb58f9b1 | Guido Trotter |
|
1067 | eb58f9b1 | Guido Trotter | @param instance: instance we're acting on
|
1068 | eb58f9b1 | Guido Trotter | @type instance: instance object
|
1069 | eb58f9b1 | Guido Trotter | @param seq: nic sequence number
|
1070 | eb58f9b1 | Guido Trotter | @type seq: int
|
1071 | eb58f9b1 | Guido Trotter | @param nic: nic we're acting on
|
1072 | eb58f9b1 | Guido Trotter | @type nic: nic object
|
1073 | 5d9bfd87 | Apollon Oikonomopoulos | @param tap: the host's tap interface this NIC corresponds to
|
1074 | 5d9bfd87 | Apollon Oikonomopoulos | @type tap: str
|
1075 | eb58f9b1 | Guido Trotter |
|
1076 | eb58f9b1 | Guido Trotter | """
|
1077 | 5d9bfd87 | Apollon Oikonomopoulos | env = { |
1078 | 5d9bfd87 | Apollon Oikonomopoulos | "PATH": "%s:/sbin:/usr/sbin" % os.environ["PATH"], |
1079 | 5d9bfd87 | Apollon Oikonomopoulos | "INSTANCE": instance.name,
|
1080 | 5d9bfd87 | Apollon Oikonomopoulos | "MAC": nic.mac,
|
1081 | 5d9bfd87 | Apollon Oikonomopoulos | "MODE": nic.nicparams[constants.NIC_MODE],
|
1082 | 5d9bfd87 | Apollon Oikonomopoulos | "INTERFACE": tap,
|
1083 | 5d9bfd87 | Apollon Oikonomopoulos | "INTERFACE_INDEX": str(seq), |
1084 | cc6fd3da | Dimitris Aragiorgis | "INTERFACE_UUID": nic.uuid,
|
1085 | 2a3bbbaa | Dimitris Aragiorgis | "TAGS": " ".join(instance.GetTags()), |
1086 | 5d9bfd87 | Apollon Oikonomopoulos | } |
1087 | 5d9bfd87 | Apollon Oikonomopoulos | |
1088 | 5d9bfd87 | Apollon Oikonomopoulos | if nic.ip:
|
1089 | 5d9bfd87 | Apollon Oikonomopoulos | env["IP"] = nic.ip
|
1090 | 5d9bfd87 | Apollon Oikonomopoulos | |
1091 | cc6fd3da | Dimitris Aragiorgis | if nic.name:
|
1092 | cc6fd3da | Dimitris Aragiorgis | env["INTERFACE_NAME"] = nic.name
|
1093 | cc6fd3da | Dimitris Aragiorgis | |
1094 | 5d9bfd87 | Apollon Oikonomopoulos | if nic.nicparams[constants.NIC_LINK]:
|
1095 | 5d9bfd87 | Apollon Oikonomopoulos | env["LINK"] = nic.nicparams[constants.NIC_LINK]
|
1096 | 5d9bfd87 | Apollon Oikonomopoulos | |
1097 | 747ee762 | Dimitris Aragiorgis | if nic.nicparams[constants.NIC_VLAN]:
|
1098 | 747ee762 | Dimitris Aragiorgis | env["VLAN"] = nic.nicparams[constants.NIC_VLAN]
|
1099 | 747ee762 | Dimitris Aragiorgis | |
1100 | a5ad5e58 | Apollon Oikonomopoulos | if nic.network:
|
1101 | cbe4a0a5 | Dimitris Aragiorgis | n = objects.Network.FromDict(nic.netinfo) |
1102 | 7e8f03e3 | Dimitris Aragiorgis | env.update(n.HooksDict()) |
1103 | a5ad5e58 | Apollon Oikonomopoulos | |
1104 | 5d9bfd87 | Apollon Oikonomopoulos | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
1105 | 5d9bfd87 | Apollon Oikonomopoulos | env["BRIDGE"] = nic.nicparams[constants.NIC_LINK]
|
1106 | 5d9bfd87 | Apollon Oikonomopoulos | |
1107 | 9d9bded1 | Michael Hanselmann | result = utils.RunCmd([pathutils.KVM_IFUP, tap], env=env) |
1108 | 5d9bfd87 | Apollon Oikonomopoulos | if result.failed:
|
1109 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("Failed to configure interface %s: %s;" |
1110 | afa9bb2e | Michael Hanselmann | " network configuration script output: %s" %
|
1111 | 5d9bfd87 | Apollon Oikonomopoulos | (tap, result.fail_reason, result.output)) |
1112 | eb58f9b1 | Guido Trotter | |
1113 | b693125f | Tsachy Shacham | @staticmethod
|
1114 | b693125f | Tsachy Shacham | def _VerifyAffinityPackage(): |
1115 | b693125f | Tsachy Shacham | if affinity is None: |
1116 | b693125f | Tsachy Shacham | raise errors.HypervisorError("affinity Python package not" |
1117 | 5ae4945a | Iustin Pop | " found; cannot use CPU pinning under KVM")
|
1118 | b693125f | Tsachy Shacham | |
1119 | b693125f | Tsachy Shacham | @staticmethod
|
1120 | b693125f | Tsachy Shacham | def _BuildAffinityCpuMask(cpu_list): |
1121 | b693125f | Tsachy Shacham | """Create a CPU mask suitable for sched_setaffinity from a list of
|
1122 | b693125f | Tsachy Shacham | CPUs.
|
1123 | b693125f | Tsachy Shacham |
|
1124 | b693125f | Tsachy Shacham | See man taskset for more info on sched_setaffinity masks.
|
1125 | b693125f | Tsachy Shacham | For example: [ 0, 2, 5, 6 ] will return 101 (0x65, 0..01100101).
|
1126 | b693125f | Tsachy Shacham |
|
1127 | b693125f | Tsachy Shacham | @type cpu_list: list of int
|
1128 | b693125f | Tsachy Shacham | @param cpu_list: list of physical CPU numbers to map to vCPUs in order
|
1129 | b693125f | Tsachy Shacham | @rtype: int
|
1130 | b693125f | Tsachy Shacham | @return: a bit mask of CPU affinities
|
1131 | b693125f | Tsachy Shacham |
|
1132 | b693125f | Tsachy Shacham | """
|
1133 | b693125f | Tsachy Shacham | if cpu_list == constants.CPU_PINNING_OFF:
|
1134 | b693125f | Tsachy Shacham | return constants.CPU_PINNING_ALL_KVM
|
1135 | b693125f | Tsachy Shacham | else:
|
1136 | b693125f | Tsachy Shacham | return sum(2 ** cpu for cpu in cpu_list) |
1137 | b693125f | Tsachy Shacham | |
1138 | b693125f | Tsachy Shacham | @classmethod
|
1139 | b693125f | Tsachy Shacham | def _AssignCpuAffinity(cls, cpu_mask, process_id, thread_dict): |
1140 | b693125f | Tsachy Shacham | """Change CPU affinity for running VM according to given CPU mask.
|
1141 | b693125f | Tsachy Shacham |
|
1142 | b693125f | Tsachy Shacham | @param cpu_mask: CPU mask as given by the user. e.g. "0-2,4:all:1,3"
|
1143 | b693125f | Tsachy Shacham | @type cpu_mask: string
|
1144 | b693125f | Tsachy Shacham | @param process_id: process ID of KVM process. Used to pin entire VM
|
1145 | b693125f | Tsachy Shacham | to physical CPUs.
|
1146 | b693125f | Tsachy Shacham | @type process_id: int
|
1147 | b693125f | Tsachy Shacham | @param thread_dict: map of virtual CPUs to KVM thread IDs
|
1148 | b693125f | Tsachy Shacham | @type thread_dict: dict int:int
|
1149 | b693125f | Tsachy Shacham |
|
1150 | b693125f | Tsachy Shacham | """
|
1151 | b693125f | Tsachy Shacham | # Convert the string CPU mask to a list of list of int's
|
1152 | b693125f | Tsachy Shacham | cpu_list = utils.ParseMultiCpuMask(cpu_mask) |
1153 | b693125f | Tsachy Shacham | |
1154 | b693125f | Tsachy Shacham | if len(cpu_list) == 1: |
1155 | b693125f | Tsachy Shacham | all_cpu_mapping = cpu_list[0]
|
1156 | b693125f | Tsachy Shacham | if all_cpu_mapping == constants.CPU_PINNING_OFF:
|
1157 | b693125f | Tsachy Shacham | # If CPU pinning has 1 entry that's "all", then do nothing
|
1158 | b693125f | Tsachy Shacham | pass
|
1159 | b693125f | Tsachy Shacham | else:
|
1160 | b693125f | Tsachy Shacham | # If CPU pinning has one non-all entry, map the entire VM to
|
1161 | b693125f | Tsachy Shacham | # one set of physical CPUs
|
1162 | b693125f | Tsachy Shacham | cls._VerifyAffinityPackage() |
1163 | 5ae4945a | Iustin Pop | affinity.set_process_affinity_mask( |
1164 | 5ae4945a | Iustin Pop | process_id, cls._BuildAffinityCpuMask(all_cpu_mapping)) |
1165 | b693125f | Tsachy Shacham | else:
|
1166 | b693125f | Tsachy Shacham | # The number of vCPUs mapped should match the number of vCPUs
|
1167 | b693125f | Tsachy Shacham | # reported by KVM. This was already verified earlier, so
|
1168 | b693125f | Tsachy Shacham | # here only as a sanity check.
|
1169 | b693125f | Tsachy Shacham | assert len(thread_dict) == len(cpu_list) |
1170 | b693125f | Tsachy Shacham | cls._VerifyAffinityPackage() |
1171 | b693125f | Tsachy Shacham | |
1172 | b693125f | Tsachy Shacham | # For each vCPU, map it to the proper list of physical CPUs
|
1173 | b693125f | Tsachy Shacham | for vcpu, i in zip(cpu_list, range(len(cpu_list))): |
1174 | b693125f | Tsachy Shacham | affinity.set_process_affinity_mask(thread_dict[i], |
1175 | 5ae4945a | Iustin Pop | cls._BuildAffinityCpuMask(vcpu)) |
1176 | b693125f | Tsachy Shacham | |
1177 | b693125f | Tsachy Shacham | def _GetVcpuThreadIds(self, instance_name): |
1178 | b693125f | Tsachy Shacham | """Get a mapping of vCPU no. to thread IDs for the instance
|
1179 | b693125f | Tsachy Shacham |
|
1180 | b693125f | Tsachy Shacham | @type instance_name: string
|
1181 | b693125f | Tsachy Shacham | @param instance_name: instance in question
|
1182 | b693125f | Tsachy Shacham | @rtype: dictionary of int:int
|
1183 | b693125f | Tsachy Shacham | @return: a dictionary mapping vCPU numbers to thread IDs
|
1184 | b693125f | Tsachy Shacham |
|
1185 | b693125f | Tsachy Shacham | """
|
1186 | b693125f | Tsachy Shacham | result = {} |
1187 | b693125f | Tsachy Shacham | output = self._CallMonitorCommand(instance_name, self._CPU_INFO_CMD) |
1188 | b693125f | Tsachy Shacham | for line in output.stdout.splitlines(): |
1189 | b693125f | Tsachy Shacham | match = self._CPU_INFO_RE.search(line)
|
1190 | b693125f | Tsachy Shacham | if not match: |
1191 | b693125f | Tsachy Shacham | continue
|
1192 | b693125f | Tsachy Shacham | grp = map(int, match.groups()) |
1193 | b693125f | Tsachy Shacham | result[grp[0]] = grp[1] |
1194 | b693125f | Tsachy Shacham | |
1195 | b693125f | Tsachy Shacham | return result
|
1196 | b693125f | Tsachy Shacham | |
1197 | 1d8a7812 | Andrea Spadaccini | def _ExecuteCpuAffinity(self, instance_name, cpu_mask): |
1198 | 1d8a7812 | Andrea Spadaccini | """Complete CPU pinning.
|
1199 | b693125f | Tsachy Shacham |
|
1200 | b693125f | Tsachy Shacham | @type instance_name: string
|
1201 | b693125f | Tsachy Shacham | @param instance_name: name of instance
|
1202 | b693125f | Tsachy Shacham | @type cpu_mask: string
|
1203 | b693125f | Tsachy Shacham | @param cpu_mask: CPU pinning mask as entered by user
|
1204 | b693125f | Tsachy Shacham |
|
1205 | b693125f | Tsachy Shacham | """
|
1206 | 1d8a7812 | Andrea Spadaccini | # Get KVM process ID, to be used if need to pin entire VM
|
1207 | 1d8a7812 | Andrea Spadaccini | _, pid, _ = self._InstancePidAlive(instance_name)
|
1208 | 1d8a7812 | Andrea Spadaccini | # Get vCPU thread IDs, to be used if need to pin vCPUs separately
|
1209 | 1d8a7812 | Andrea Spadaccini | thread_dict = self._GetVcpuThreadIds(instance_name)
|
1210 | 1d8a7812 | Andrea Spadaccini | # Run CPU pinning, based on configured mask
|
1211 | 1d8a7812 | Andrea Spadaccini | self._AssignCpuAffinity(cpu_mask, pid, thread_dict)
|
1212 | b693125f | Tsachy Shacham | |
1213 | 58e356a9 | Helga Velroyen | def ListInstances(self, hvparams=None): |
1214 | eb58f9b1 | Guido Trotter | """Get the list of running instances.
|
1215 | eb58f9b1 | Guido Trotter |
|
1216 | c41eea6e | Iustin Pop | We can do this by listing our live instances directory and
|
1217 | c41eea6e | Iustin Pop | checking whether the associated kvm process is still alive.
|
1218 | eb58f9b1 | Guido Trotter |
|
1219 | eb58f9b1 | Guido Trotter | """
|
1220 | eb58f9b1 | Guido Trotter | result = [] |
1221 | eb58f9b1 | Guido Trotter | for name in os.listdir(self._PIDS_DIR): |
1222 | 95d70148 | Jose A. Lopes | if self._InstancePidAlive(name)[2] or self._IsUserShutdown(name): |
1223 | eb58f9b1 | Guido Trotter | result.append(name) |
1224 | eb58f9b1 | Guido Trotter | return result
|
1225 | eb58f9b1 | Guido Trotter | |
1226 | 95d70148 | Jose A. Lopes | @classmethod
|
1227 | 95d70148 | Jose A. Lopes | def _IsUserShutdown(cls, instance_name): |
1228 | 95d70148 | Jose A. Lopes | return os.path.exists(cls._InstanceShutdownMonitor(instance_name))
|
1229 | 95d70148 | Jose A. Lopes | |
1230 | 95d70148 | Jose A. Lopes | @classmethod
|
1231 | 95d70148 | Jose A. Lopes | def _ClearUserShutdown(cls, instance_name): |
1232 | 95d70148 | Jose A. Lopes | utils.RemoveFile(cls._InstanceShutdownMonitor(instance_name)) |
1233 | 95d70148 | Jose A. Lopes | |
1234 | 0bbec3af | Helga Velroyen | def GetInstanceInfo(self, instance_name, hvparams=None): |
1235 | eb58f9b1 | Guido Trotter | """Get instance properties.
|
1236 | eb58f9b1 | Guido Trotter |
|
1237 | 4fbb3c60 | Guido Trotter | @type instance_name: string
|
1238 | c41eea6e | Iustin Pop | @param instance_name: the instance name
|
1239 | 0bbec3af | Helga Velroyen | @type hvparams: dict of strings
|
1240 | 0bbec3af | Helga Velroyen | @param hvparams: hvparams to be used with this instance
|
1241 | 4fbb3c60 | Guido Trotter | @rtype: tuple of strings
|
1242 | 4fbb3c60 | Guido Trotter | @return: (name, id, memory, vcpus, stat, times)
|
1243 | eb58f9b1 | Guido Trotter |
|
1244 | eb58f9b1 | Guido Trotter | """
|
1245 | 1122eb25 | Iustin Pop | _, pid, alive = self._InstancePidAlive(instance_name)
|
1246 | 1f8b3a27 | Guido Trotter | if not alive: |
1247 | 95d70148 | Jose A. Lopes | if self._IsUserShutdown(instance_name): |
1248 | 95d70148 | Jose A. Lopes | return (instance_name, -1, 0, 0, hv_base.HvInstanceState.SHUTDOWN, 0) |
1249 | 95d70148 | Jose A. Lopes | else:
|
1250 | 95d70148 | Jose A. Lopes | return None |
1251 | eb58f9b1 | Guido Trotter | |
1252 | 263b8de6 | Guido Trotter | _, memory, vcpus = self._InstancePidInfo(pid)
|
1253 | a3f0f306 | Jose A. Lopes | istat = hv_base.HvInstanceState.RUNNING |
1254 | 697e573c | Hrvoje Ribicic | times = 0
|
1255 | eb58f9b1 | Guido Trotter | |
1256 | 89da2ff3 | Guido Trotter | try:
|
1257 | 89da2ff3 | Guido Trotter | qmp = QmpConnection(self._InstanceQmpMonitor(instance_name))
|
1258 | 89da2ff3 | Guido Trotter | qmp.connect() |
1259 | 89da2ff3 | Guido Trotter | vcpus = len(qmp.Execute("query-cpus")[qmp.RETURN_KEY]) |
1260 | 89da2ff3 | Guido Trotter | # Will fail if ballooning is not enabled, but we can then just resort to
|
1261 | 89da2ff3 | Guido Trotter | # the value above.
|
1262 | 89da2ff3 | Guido Trotter | mem_bytes = qmp.Execute("query-balloon")[qmp.RETURN_KEY][qmp.ACTUAL_KEY]
|
1263 | 89da2ff3 | Guido Trotter | memory = mem_bytes / 1048576
|
1264 | 89da2ff3 | Guido Trotter | except errors.HypervisorError:
|
1265 | 89da2ff3 | Guido Trotter | pass
|
1266 | 89da2ff3 | Guido Trotter | |
1267 | fc84cd5d | Guido Trotter | return (instance_name, pid, memory, vcpus, istat, times)
|
1268 | eb58f9b1 | Guido Trotter | |
1269 | 0200a1af | Helga Velroyen | def GetAllInstancesInfo(self, hvparams=None): |
1270 | eb58f9b1 | Guido Trotter | """Get properties of all instances.
|
1271 | eb58f9b1 | Guido Trotter |
|
1272 | 0200a1af | Helga Velroyen | @type hvparams: dict of strings
|
1273 | 0200a1af | Helga Velroyen | @param hvparams: hypervisor parameter
|
1274 | c41eea6e | Iustin Pop | @return: list of tuples (name, id, memory, vcpus, stat, times)
|
1275 | c41eea6e | Iustin Pop |
|
1276 | eb58f9b1 | Guido Trotter | """
|
1277 | eb58f9b1 | Guido Trotter | data = [] |
1278 | eb58f9b1 | Guido Trotter | for name in os.listdir(self._PIDS_DIR): |
1279 | 263b8de6 | Guido Trotter | try:
|
1280 | 263b8de6 | Guido Trotter | info = self.GetInstanceInfo(name)
|
1281 | 263b8de6 | Guido Trotter | except errors.HypervisorError:
|
1282 | 3bc145d8 | Bernardo Dal Seno | # Ignore exceptions due to instances being shut down
|
1283 | 263b8de6 | Guido Trotter | continue
|
1284 | 263b8de6 | Guido Trotter | if info:
|
1285 | 263b8de6 | Guido Trotter | data.append(info) |
1286 | eb58f9b1 | Guido Trotter | return data
|
1287 | eb58f9b1 | Guido Trotter | |
1288 | 41a878b5 | Dimitris Aragiorgis | def _GenerateKVMBlockDevicesOptions(self, instance, kvm_disks, |
1289 | 43c6e76f | Dimitris Aragiorgis | kvmhelp, devlist): |
1290 | 43c6e76f | Dimitris Aragiorgis | """Generate KVM options regarding instance's block devices.
|
1291 | 43c6e76f | Dimitris Aragiorgis |
|
1292 | 43c6e76f | Dimitris Aragiorgis | @type instance: L{objects.Instance}
|
1293 | 43c6e76f | Dimitris Aragiorgis | @param instance: the instance object
|
1294 | 41a878b5 | Dimitris Aragiorgis | @type kvm_disks: list of tuples
|
1295 | 41a878b5 | Dimitris Aragiorgis | @param kvm_disks: list of tuples [(disk, link_name, uri)..]
|
1296 | 43c6e76f | Dimitris Aragiorgis | @type kvmhelp: string
|
1297 | 43c6e76f | Dimitris Aragiorgis | @param kvmhelp: output of kvm --help
|
1298 | 43c6e76f | Dimitris Aragiorgis | @type devlist: string
|
1299 | 43c6e76f | Dimitris Aragiorgis | @param devlist: output of kvm -device ?
|
1300 | 43c6e76f | Dimitris Aragiorgis | @rtype: list
|
1301 | 43c6e76f | Dimitris Aragiorgis | @return: list of command line options eventually used by kvm executable
|
1302 | af5db30c | Dimitris Aragiorgis |
|
1303 | 43c6e76f | Dimitris Aragiorgis | """
|
1304 | af5db30c | Dimitris Aragiorgis | hvp = instance.hvparams |
1305 | 43c6e76f | Dimitris Aragiorgis | kernel_path = hvp[constants.HV_KERNEL_PATH] |
1306 | 43c6e76f | Dimitris Aragiorgis | if kernel_path:
|
1307 | 43c6e76f | Dimitris Aragiorgis | boot_disk = False
|
1308 | 43c6e76f | Dimitris Aragiorgis | else:
|
1309 | 43c6e76f | Dimitris Aragiorgis | boot_disk = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_DISK |
1310 | af5db30c | Dimitris Aragiorgis | |
1311 | af5db30c | Dimitris Aragiorgis | # whether this is an older KVM version that uses the boot=on flag
|
1312 | af5db30c | Dimitris Aragiorgis | # on devices
|
1313 | af5db30c | Dimitris Aragiorgis | needs_boot_flag = self._BOOT_RE.search(kvmhelp)
|
1314 | af5db30c | Dimitris Aragiorgis | |
1315 | af5db30c | Dimitris Aragiorgis | dev_opts = [] |
1316 | a16f0d77 | Dimitris Aragiorgis | device_driver = None
|
1317 | af5db30c | Dimitris Aragiorgis | disk_type = hvp[constants.HV_DISK_TYPE] |
1318 | af5db30c | Dimitris Aragiorgis | if disk_type == constants.HT_DISK_PARAVIRTUAL:
|
1319 | af5db30c | Dimitris Aragiorgis | if_val = ",if=%s" % self._VIRTIO |
1320 | a16f0d77 | Dimitris Aragiorgis | try:
|
1321 | a16f0d77 | Dimitris Aragiorgis | if self._VIRTIO_BLK_RE.search(devlist): |
1322 | a7ccf635 | Dimitris Aragiorgis | if_val = ",if=none"
|
1323 | a16f0d77 | Dimitris Aragiorgis | # will be passed in -device option as driver
|
1324 | a16f0d77 | Dimitris Aragiorgis | device_driver = self._VIRTIO_BLK_PCI
|
1325 | a16f0d77 | Dimitris Aragiorgis | except errors.HypervisorError, _:
|
1326 | a16f0d77 | Dimitris Aragiorgis | pass
|
1327 | af5db30c | Dimitris Aragiorgis | else:
|
1328 | af5db30c | Dimitris Aragiorgis | if_val = ",if=%s" % disk_type
|
1329 | af5db30c | Dimitris Aragiorgis | # Cache mode
|
1330 | af5db30c | Dimitris Aragiorgis | disk_cache = hvp[constants.HV_DISK_CACHE] |
1331 | af5db30c | Dimitris Aragiorgis | if instance.disk_template in constants.DTS_EXT_MIRROR: |
1332 | af5db30c | Dimitris Aragiorgis | if disk_cache != "none": |
1333 | af5db30c | Dimitris Aragiorgis | # TODO: make this a hard error, instead of a silent overwrite
|
1334 | af5db30c | Dimitris Aragiorgis | logging.warning("KVM: overriding disk_cache setting '%s' with 'none'"
|
1335 | af5db30c | Dimitris Aragiorgis | " to prevent shared storage corruption on migration",
|
1336 | af5db30c | Dimitris Aragiorgis | disk_cache) |
1337 | af5db30c | Dimitris Aragiorgis | cache_val = ",cache=none"
|
1338 | af5db30c | Dimitris Aragiorgis | elif disk_cache != constants.HT_CACHE_DEFAULT:
|
1339 | af5db30c | Dimitris Aragiorgis | cache_val = ",cache=%s" % disk_cache
|
1340 | af5db30c | Dimitris Aragiorgis | else:
|
1341 | af5db30c | Dimitris Aragiorgis | cache_val = ""
|
1342 | 41a878b5 | Dimitris Aragiorgis | for cfdev, link_name, uri in kvm_disks: |
1343 | af5db30c | Dimitris Aragiorgis | if cfdev.mode != constants.DISK_RDWR:
|
1344 | af5db30c | Dimitris Aragiorgis | raise errors.HypervisorError("Instance has read-only disks which" |
1345 | af5db30c | Dimitris Aragiorgis | " are not supported by KVM")
|
1346 | af5db30c | Dimitris Aragiorgis | # TODO: handle FD_LOOP and FD_BLKTAP (?)
|
1347 | af5db30c | Dimitris Aragiorgis | boot_val = ""
|
1348 | af5db30c | Dimitris Aragiorgis | if boot_disk:
|
1349 | af5db30c | Dimitris Aragiorgis | dev_opts.extend(["-boot", "c"]) |
1350 | af5db30c | Dimitris Aragiorgis | boot_disk = False
|
1351 | af5db30c | Dimitris Aragiorgis | if needs_boot_flag and disk_type != constants.HT_DISK_IDE: |
1352 | af5db30c | Dimitris Aragiorgis | boot_val = ",boot=on"
|
1353 | af5db30c | Dimitris Aragiorgis | |
1354 | af5db30c | Dimitris Aragiorgis | access_mode = cfdev.params.get(constants.LDP_ACCESS, |
1355 | af5db30c | Dimitris Aragiorgis | constants.DISK_KERNELSPACE) |
1356 | 66d3d195 | Dimitris Aragiorgis | if (uri and access_mode == constants.DISK_USERSPACE): |
1357 | 66d3d195 | Dimitris Aragiorgis | drive_uri = uri |
1358 | af5db30c | Dimitris Aragiorgis | else:
|
1359 | 66d3d195 | Dimitris Aragiorgis | drive_uri = link_name |
1360 | af5db30c | Dimitris Aragiorgis | |
1361 | af5db30c | Dimitris Aragiorgis | drive_val = "file=%s,format=raw%s%s%s" % \
|
1362 | af5db30c | Dimitris Aragiorgis | (drive_uri, if_val, boot_val, cache_val) |
1363 | af5db30c | Dimitris Aragiorgis | |
1364 | a16f0d77 | Dimitris Aragiorgis | if device_driver:
|
1365 | 41a878b5 | Dimitris Aragiorgis | # kvm_disks are the 4th entry of runtime file that did not exist in
|
1366 | a7ccf635 | Dimitris Aragiorgis | # the past. That means that cfdev should always have pci slot and
|
1367 | a7ccf635 | Dimitris Aragiorgis | # _GenerateDeviceKVMId() will not raise a exception.
|
1368 | a7ccf635 | Dimitris Aragiorgis | kvm_devid = _GenerateDeviceKVMId(constants.HOTPLUG_TARGET_DISK, cfdev) |
1369 | a7ccf635 | Dimitris Aragiorgis | drive_val += (",id=%s" % kvm_devid)
|
1370 | a7ccf635 | Dimitris Aragiorgis | drive_val += (",bus=0,unit=%d" % cfdev.pci)
|
1371 | a7ccf635 | Dimitris Aragiorgis | dev_val = ("%s,drive=%s,id=%s" %
|
1372 | a7ccf635 | Dimitris Aragiorgis | (device_driver, kvm_devid, kvm_devid)) |
1373 | a7ccf635 | Dimitris Aragiorgis | dev_val += ",bus=pci.0,addr=%s" % hex(cfdev.pci) |
1374 | a7ccf635 | Dimitris Aragiorgis | dev_opts.extend(["-device", dev_val])
|
1375 | a7ccf635 | Dimitris Aragiorgis | |
1376 | af5db30c | Dimitris Aragiorgis | dev_opts.extend(["-drive", drive_val])
|
1377 | af5db30c | Dimitris Aragiorgis | |
1378 | af5db30c | Dimitris Aragiorgis | return dev_opts
|
1379 | af5db30c | Dimitris Aragiorgis | |
1380 | 364e1664 | Jose A. Lopes | @staticmethod
|
1381 | 472cc1e9 | Jose A. Lopes | def _CdromOption(kvm_cmd, cdrom_disk_type, cdrom_image, cdrom_boot, |
1382 | 472cc1e9 | Jose A. Lopes | needs_boot_flag): |
1383 | 364e1664 | Jose A. Lopes | """Extends L{kvm_cmd} with the '-drive' option for a cdrom, and
|
1384 | 364e1664 | Jose A. Lopes | optionally the '-boot' option.
|
1385 | 364e1664 | Jose A. Lopes |
|
1386 | 364e1664 | Jose A. Lopes | Example: -drive file=cdrom.iso,media=cdrom,format=raw,if=ide -boot d
|
1387 | 364e1664 | Jose A. Lopes |
|
1388 | 364e1664 | Jose A. Lopes | Example: -drive file=cdrom.iso,media=cdrom,format=raw,if=ide,boot=on
|
1389 | 364e1664 | Jose A. Lopes |
|
1390 | 364e1664 | Jose A. Lopes | Example: -drive file=http://hostname.com/cdrom.iso,media=cdrom
|
1391 | 364e1664 | Jose A. Lopes |
|
1392 | 364e1664 | Jose A. Lopes | @type kvm_cmd: string
|
1393 | 364e1664 | Jose A. Lopes | @param kvm_cmd: KVM command line
|
1394 | 364e1664 | Jose A. Lopes |
|
1395 | 364e1664 | Jose A. Lopes | @type cdrom_disk_type:
|
1396 | 364e1664 | Jose A. Lopes | @param cdrom_disk_type:
|
1397 | 364e1664 | Jose A. Lopes |
|
1398 | 364e1664 | Jose A. Lopes | @type cdrom_image:
|
1399 | 364e1664 | Jose A. Lopes | @param cdrom_image:
|
1400 | 364e1664 | Jose A. Lopes |
|
1401 | 364e1664 | Jose A. Lopes | @type cdrom_boot:
|
1402 | 364e1664 | Jose A. Lopes | @param cdrom_boot:
|
1403 | 364e1664 | Jose A. Lopes |
|
1404 | 364e1664 | Jose A. Lopes | @type needs_boot_flag:
|
1405 | 364e1664 | Jose A. Lopes | @param needs_boot_flag:
|
1406 | 364e1664 | Jose A. Lopes |
|
1407 | 364e1664 | Jose A. Lopes | """
|
1408 | 364e1664 | Jose A. Lopes | # Check that the ISO image is accessible
|
1409 | 364e1664 | Jose A. Lopes | # See https://bugs.launchpad.net/qemu/+bug/597575
|
1410 | 364e1664 | Jose A. Lopes | if utils.IsUrl(cdrom_image) and not _CheckUrl(cdrom_image): |
1411 | 364e1664 | Jose A. Lopes | raise errors.HypervisorError("Cdrom ISO image '%s' is not accessible" % |
1412 | 364e1664 | Jose A. Lopes | cdrom_image) |
1413 | 364e1664 | Jose A. Lopes | |
1414 | 364e1664 | Jose A. Lopes | # set cdrom 'media' and 'format', if needed
|
1415 | 364e1664 | Jose A. Lopes | if utils.IsUrl(cdrom_image):
|
1416 | 364e1664 | Jose A. Lopes | options = ",media=cdrom"
|
1417 | 364e1664 | Jose A. Lopes | else:
|
1418 | 364e1664 | Jose A. Lopes | options = ",media=cdrom,format=raw"
|
1419 | 364e1664 | Jose A. Lopes | |
1420 | 364e1664 | Jose A. Lopes | # set cdrom 'if' type
|
1421 | 364e1664 | Jose A. Lopes | if cdrom_boot:
|
1422 | 364e1664 | Jose A. Lopes | if_val = ",if=" + constants.HT_DISK_IDE
|
1423 | 364e1664 | Jose A. Lopes | elif cdrom_disk_type == constants.HT_DISK_PARAVIRTUAL:
|
1424 | 364e1664 | Jose A. Lopes | if_val = ",if=virtio"
|
1425 | 364e1664 | Jose A. Lopes | else:
|
1426 | 364e1664 | Jose A. Lopes | if_val = ",if=" + cdrom_disk_type
|
1427 | 364e1664 | Jose A. Lopes | |
1428 | 364e1664 | Jose A. Lopes | # set boot flag, if needed
|
1429 | 364e1664 | Jose A. Lopes | boot_val = ""
|
1430 | 364e1664 | Jose A. Lopes | if cdrom_boot:
|
1431 | 364e1664 | Jose A. Lopes | kvm_cmd.extend(["-boot", "d"]) |
1432 | 364e1664 | Jose A. Lopes | |
1433 | 364e1664 | Jose A. Lopes | # whether this is an older KVM version that requires the 'boot=on' flag
|
1434 | 364e1664 | Jose A. Lopes | # on devices
|
1435 | 364e1664 | Jose A. Lopes | if needs_boot_flag:
|
1436 | 364e1664 | Jose A. Lopes | boot_val = ",boot=on"
|
1437 | 364e1664 | Jose A. Lopes | |
1438 | 364e1664 | Jose A. Lopes | # build '-drive' option
|
1439 | 364e1664 | Jose A. Lopes | drive_val = "file=%s%s%s%s" % (cdrom_image, options, if_val, boot_val)
|
1440 | 364e1664 | Jose A. Lopes | kvm_cmd.extend(["-drive", drive_val])
|
1441 | 364e1664 | Jose A. Lopes | |
1442 | b73f1c59 | Guido Trotter | def _GenerateKVMRuntime(self, instance, block_devices, startup_paused, |
1443 | b73f1c59 | Guido Trotter | kvmhelp): |
1444 | ee5f20b0 | Guido Trotter | """Generate KVM information to start an instance.
|
1445 | eb58f9b1 | Guido Trotter |
|
1446 | b73f1c59 | Guido Trotter | @type kvmhelp: string
|
1447 | b73f1c59 | Guido Trotter | @param kvmhelp: output of kvm --help
|
1448 | 839642c2 | Iustin Pop | @attention: this function must not have any side-effects; for
|
1449 | 839642c2 | Iustin Pop | example, it must not write to the filesystem, or read values
|
1450 | 839642c2 | Iustin Pop | from the current system the are expected to differ between
|
1451 | 839642c2 | Iustin Pop | nodes, since it is only run once at instance startup;
|
1452 | 839642c2 | Iustin Pop | actions/kvm arguments that can vary between systems should be
|
1453 | 839642c2 | Iustin Pop | done in L{_ExecuteKVMRuntime}
|
1454 | 839642c2 | Iustin Pop |
|
1455 | eb58f9b1 | Guido Trotter | """
|
1456 | 4888a609 | Guido Trotter | # pylint: disable=R0912,R0914,R0915
|
1457 | 4888a609 | Guido Trotter | hvp = instance.hvparams |
1458 | 81e265f5 | Guido Trotter | self.ValidateParameters(hvp)
|
1459 | 4304964a | Guido Trotter | |
1460 | e687ec01 | Michael Hanselmann | pidfile = self._InstancePidFile(instance.name)
|
1461 | 4b9638dc | Guido Trotter | kvm = hvp[constants.HV_KVM_PATH] |
1462 | eb58f9b1 | Guido Trotter | kvm_cmd = [kvm] |
1463 | c6a39fc2 | Guido Trotter | # used just by the vnc server, if enabled
|
1464 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-name", instance.name])
|
1465 | f5a4b9ce | Guido Trotter | kvm_cmd.extend(["-m", instance.beparams[constants.BE_MAXMEM]])
|
1466 | 4888a609 | Guido Trotter | |
1467 | 4888a609 | Guido Trotter | smp_list = ["%s" % instance.beparams[constants.BE_VCPUS]]
|
1468 | 4888a609 | Guido Trotter | if hvp[constants.HV_CPU_CORES]:
|
1469 | 4888a609 | Guido Trotter | smp_list.append("cores=%s" % hvp[constants.HV_CPU_CORES])
|
1470 | 4888a609 | Guido Trotter | if hvp[constants.HV_CPU_THREADS]:
|
1471 | 4888a609 | Guido Trotter | smp_list.append("threads=%s" % hvp[constants.HV_CPU_THREADS])
|
1472 | 4888a609 | Guido Trotter | if hvp[constants.HV_CPU_SOCKETS]:
|
1473 | 4888a609 | Guido Trotter | smp_list.append("sockets=%s" % hvp[constants.HV_CPU_SOCKETS])
|
1474 | 4888a609 | Guido Trotter | |
1475 | 4888a609 | Guido Trotter | kvm_cmd.extend(["-smp", ",".join(smp_list)]) |
1476 | 4888a609 | Guido Trotter | |
1477 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-pidfile", pidfile])
|
1478 | 3a72e34a | Dimitris Aragiorgis | |
1479 | 3a72e34a | Dimitris Aragiorgis | pci_reservations = bitarray(self._DEFAULT_PCI_RESERVATIONS)
|
1480 | 3a72e34a | Dimitris Aragiorgis | |
1481 | 3a72e34a | Dimitris Aragiorgis | # As requested by music lovers
|
1482 | 3a72e34a | Dimitris Aragiorgis | if hvp[constants.HV_SOUNDHW]:
|
1483 | 3a72e34a | Dimitris Aragiorgis | soundhw = hvp[constants.HV_SOUNDHW] |
1484 | 3a72e34a | Dimitris Aragiorgis | # For some reason only few sound devices require a PCI slot
|
1485 | 3a72e34a | Dimitris Aragiorgis | # while the Audio controller *must* be in slot 3.
|
1486 | 3a72e34a | Dimitris Aragiorgis | # That's why we bridge this option early in command line
|
1487 | 3a72e34a | Dimitris Aragiorgis | if soundhw in self._SOUNDHW_WITH_PCI_SLOT: |
1488 | 3a72e34a | Dimitris Aragiorgis | _ = _GetFreeSlot(pci_reservations, reserve=True)
|
1489 | 3a72e34a | Dimitris Aragiorgis | kvm_cmd.extend(["-soundhw", soundhw])
|
1490 | 3a72e34a | Dimitris Aragiorgis | |
1491 | 3a72e34a | Dimitris Aragiorgis | # Add id to ballon and place to the first available slot (3 or 4)
|
1492 | 3a72e34a | Dimitris Aragiorgis | addr = _GetFreeSlot(pci_reservations, reserve=True)
|
1493 | 3a72e34a | Dimitris Aragiorgis | pci_info = ",bus=pci.0,addr=%s" % hex(addr) |
1494 | 3a72e34a | Dimitris Aragiorgis | kvm_cmd.extend(["-balloon", "virtio,id=balloon%s" % pci_info]) |
1495 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-daemonize"])
|
1496 | 6b5605e8 | Iustin Pop | if not instance.hvparams[constants.HV_ACPI]: |
1497 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-no-acpi"])
|
1498 | 990ade2d | Stephen Shirley | if instance.hvparams[constants.HV_REBOOT_BEHAVIOR] == \
|
1499 | 990ade2d | Stephen Shirley | constants.INSTANCE_REBOOT_EXIT: |
1500 | 990ade2d | Stephen Shirley | kvm_cmd.extend(["-no-reboot"])
|
1501 | eb58f9b1 | Guido Trotter | |
1502 | 4ab75599 | Dimitris Aragiorgis | mversion = hvp[constants.HV_KVM_MACHINE_VERSION] |
1503 | 4ab75599 | Dimitris Aragiorgis | if not mversion: |
1504 | 4b9638dc | Guido Trotter | mversion = self._GetDefaultMachineVersion(kvm)
|
1505 | 8cb5634a | Guido Trotter | if self._MACHINE_RE.search(kvmhelp): |
1506 | 8cb5634a | Guido Trotter | # TODO (2.8): kernel_irqchip and kvm_shadow_mem machine properties, as
|
1507 | 8cb5634a | Guido Trotter | # extra hypervisor parameters. We should also investigate whether and how
|
1508 | 8cb5634a | Guido Trotter | # shadow_mem should be considered for the resource model.
|
1509 | 8cb5634a | Guido Trotter | if (hvp[constants.HV_KVM_FLAG] == constants.HT_KVM_ENABLED):
|
1510 | 8cb5634a | Guido Trotter | specprop = ",accel=kvm"
|
1511 | 8cb5634a | Guido Trotter | else:
|
1512 | 8cb5634a | Guido Trotter | specprop = ""
|
1513 | 8cb5634a | Guido Trotter | machinespec = "%s%s" % (mversion, specprop)
|
1514 | 8cb5634a | Guido Trotter | kvm_cmd.extend(["-machine", machinespec])
|
1515 | 8cb5634a | Guido Trotter | else:
|
1516 | 8cb5634a | Guido Trotter | kvm_cmd.extend(["-M", mversion])
|
1517 | 8cb5634a | Guido Trotter | if (hvp[constants.HV_KVM_FLAG] == constants.HT_KVM_ENABLED and |
1518 | 8cb5634a | Guido Trotter | self._ENABLE_KVM_RE.search(kvmhelp)):
|
1519 | 8cb5634a | Guido Trotter | kvm_cmd.extend(["-enable-kvm"])
|
1520 | 8cb5634a | Guido Trotter | elif (hvp[constants.HV_KVM_FLAG] == constants.HT_KVM_DISABLED and |
1521 | 8cb5634a | Guido Trotter | self._DISABLE_KVM_RE.search(kvmhelp)):
|
1522 | 8cb5634a | Guido Trotter | kvm_cmd.extend(["-disable-kvm"])
|
1523 | 4ab75599 | Dimitris Aragiorgis | |
1524 | 2b846304 | Iustin Pop | kernel_path = hvp[constants.HV_KERNEL_PATH] |
1525 | 2b846304 | Iustin Pop | if kernel_path:
|
1526 | af5db30c | Dimitris Aragiorgis | boot_cdrom = boot_floppy = boot_network = False
|
1527 | 2b846304 | Iustin Pop | else:
|
1528 | 2b846304 | Iustin Pop | boot_cdrom = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_CDROM |
1529 | 2b846304 | Iustin Pop | boot_floppy = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_FLOPPY |
1530 | 2b846304 | Iustin Pop | boot_network = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_NETWORK |
1531 | 8745c3d7 | Guido Trotter | |
1532 | b693125f | Tsachy Shacham | if startup_paused:
|
1533 | b693125f | Tsachy Shacham | kvm_cmd.extend([_KVM_START_PAUSED_FLAG]) |
1534 | b693125f | Tsachy Shacham | |
1535 | 8745c3d7 | Guido Trotter | if boot_network:
|
1536 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-boot", "n"]) |
1537 | 1213604d | Guido Trotter | |
1538 | a985b417 | Iustin Pop | disk_type = hvp[constants.HV_DISK_TYPE] |
1539 | eb58f9b1 | Guido Trotter | |
1540 | 364e1664 | Jose A. Lopes | # Now we can specify a different device type for CDROM devices.
|
1541 | cc130cc7 | Marco Casavecchia | cdrom_disk_type = hvp[constants.HV_KVM_CDROM_DISK_TYPE] |
1542 | cc130cc7 | Marco Casavecchia | if not cdrom_disk_type: |
1543 | cc130cc7 | Marco Casavecchia | cdrom_disk_type = disk_type |
1544 | cc130cc7 | Marco Casavecchia | |
1545 | 364e1664 | Jose A. Lopes | cdrom_image1 = hvp[constants.HV_CDROM_IMAGE_PATH] |
1546 | 364e1664 | Jose A. Lopes | if cdrom_image1:
|
1547 | 364e1664 | Jose A. Lopes | needs_boot_flag = self._BOOT_RE.search(kvmhelp)
|
1548 | 472cc1e9 | Jose A. Lopes | self._CdromOption(kvm_cmd, cdrom_disk_type, cdrom_image1, boot_cdrom,
|
1549 | 472cc1e9 | Jose A. Lopes | needs_boot_flag) |
1550 | 364e1664 | Jose A. Lopes | |
1551 | 364e1664 | Jose A. Lopes | cdrom_image2 = hvp[constants.HV_KVM_CDROM2_IMAGE_PATH] |
1552 | 364e1664 | Jose A. Lopes | if cdrom_image2:
|
1553 | 472cc1e9 | Jose A. Lopes | self._CdromOption(kvm_cmd, cdrom_disk_type, cdrom_image2, False, False) |
1554 | cc130cc7 | Marco Casavecchia | |
1555 | cc130cc7 | Marco Casavecchia | floppy_image = hvp[constants.HV_KVM_FLOPPY_IMAGE_PATH] |
1556 | cc130cc7 | Marco Casavecchia | if floppy_image:
|
1557 | d0c8c01d | Iustin Pop | options = ",format=raw,media=disk"
|
1558 | cc130cc7 | Marco Casavecchia | if boot_floppy:
|
1559 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-boot", "a"]) |
1560 | d0c8c01d | Iustin Pop | options = "%s,boot=on" % options
|
1561 | d0c8c01d | Iustin Pop | if_val = ",if=floppy"
|
1562 | d0c8c01d | Iustin Pop | options = "%s%s" % (options, if_val)
|
1563 | d0c8c01d | Iustin Pop | drive_val = "file=%s%s" % (floppy_image, options)
|
1564 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-drive", drive_val])
|
1565 | cc130cc7 | Marco Casavecchia | |
1566 | df5ab9f0 | Guido Trotter | if kernel_path:
|
1567 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-kernel", kernel_path])
|
1568 | a985b417 | Iustin Pop | initrd_path = hvp[constants.HV_INITRD_PATH] |
1569 | df5ab9f0 | Guido Trotter | if initrd_path:
|
1570 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-initrd", initrd_path])
|
1571 | d0c8c01d | Iustin Pop | root_append = ["root=%s" % hvp[constants.HV_ROOT_PATH],
|
1572 | 07813a9e | Iustin Pop | hvp[constants.HV_KERNEL_ARGS]] |
1573 | 07813a9e | Iustin Pop | if hvp[constants.HV_SERIAL_CONSOLE]:
|
1574 | 14fd6c81 | Guido Trotter | serial_speed = hvp[constants.HV_SERIAL_SPEED] |
1575 | 14fd6c81 | Guido Trotter | root_append.append("console=ttyS0,%s" % serial_speed)
|
1576 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-append", " ".join(root_append)]) |
1577 | eb58f9b1 | Guido Trotter | |
1578 | 4f958b0b | Miguel Di Ciurcio Filho | mem_path = hvp[constants.HV_MEM_PATH] |
1579 | 4f958b0b | Miguel Di Ciurcio Filho | if mem_path:
|
1580 | 9d3015f9 | Guido Trotter | kvm_cmd.extend(["-mem-path", mem_path, "-mem-prealloc"]) |
1581 | 4f958b0b | Miguel Di Ciurcio Filho | |
1582 | 596b2459 | Guido Trotter | monitor_dev = ("unix:%s,server,nowait" %
|
1583 | 596b2459 | Guido Trotter | self._InstanceMonitor(instance.name))
|
1584 | 596b2459 | Guido Trotter | kvm_cmd.extend(["-monitor", monitor_dev])
|
1585 | 596b2459 | Guido Trotter | if hvp[constants.HV_SERIAL_CONSOLE]:
|
1586 | 596b2459 | Guido Trotter | serial_dev = ("unix:%s,server,nowait" %
|
1587 | 596b2459 | Guido Trotter | self._InstanceSerial(instance.name))
|
1588 | 596b2459 | Guido Trotter | kvm_cmd.extend(["-serial", serial_dev])
|
1589 | 596b2459 | Guido Trotter | else:
|
1590 | 596b2459 | Guido Trotter | kvm_cmd.extend(["-serial", "none"]) |
1591 | 596b2459 | Guido Trotter | |
1592 | a985b417 | Iustin Pop | mouse_type = hvp[constants.HV_USB_MOUSE] |
1593 | 31f6f67a | Guido Trotter | vnc_bind_address = hvp[constants.HV_VNC_BIND_ADDRESS] |
1594 | 596b2459 | Guido Trotter | spice_bind = hvp[constants.HV_KVM_SPICE_BIND] |
1595 | 596b2459 | Guido Trotter | spice_ip_version = None
|
1596 | 31f6f67a | Guido Trotter | |
1597 | a900a30c | Guido Trotter | kvm_cmd.extend(["-usb"])
|
1598 | a900a30c | Guido Trotter | |
1599 | 11344a50 | Guido Trotter | if mouse_type:
|
1600 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-usbdevice", mouse_type])
|
1601 | 31f6f67a | Guido Trotter | elif vnc_bind_address:
|
1602 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-usbdevice", constants.HT_MOUSE_TABLET])
|
1603 | 11344a50 | Guido Trotter | |
1604 | 8470c8db | Guido Trotter | if vnc_bind_address:
|
1605 | d6e5767e | Klaus Aehlig | if netutils.IsValidInterface(vnc_bind_address):
|
1606 | d6e5767e | Klaus Aehlig | if_addresses = netutils.GetInterfaceIpAddresses(vnc_bind_address) |
1607 | d6e5767e | Klaus Aehlig | if_ip4_addresses = if_addresses[constants.IP4_VERSION] |
1608 | d6e5767e | Klaus Aehlig | if len(if_ip4_addresses) < 1: |
1609 | d6e5767e | Klaus Aehlig | logging.error("Could not determine IPv4 address of interface %s",
|
1610 | d6e5767e | Klaus Aehlig | vnc_bind_address) |
1611 | d6e5767e | Klaus Aehlig | else:
|
1612 | d6e5767e | Klaus Aehlig | vnc_bind_address = if_ip4_addresses[0]
|
1613 | 8b312c1d | Manuel Franceschini | if netutils.IP4Address.IsValid(vnc_bind_address):
|
1614 | 377d74c9 | Guido Trotter | if instance.network_port > constants.VNC_BASE_PORT:
|
1615 | 377d74c9 | Guido Trotter | display = instance.network_port - constants.VNC_BASE_PORT |
1616 | 14f5f1b6 | Manuel Franceschini | if vnc_bind_address == constants.IP4_ADDRESS_ANY:
|
1617 | d0c8c01d | Iustin Pop | vnc_arg = ":%d" % (display)
|
1618 | 8447f52b | Guido Trotter | else:
|
1619 | d0c8c01d | Iustin Pop | vnc_arg = "%s:%d" % (vnc_bind_address, display)
|
1620 | 8470c8db | Guido Trotter | else:
|
1621 | afa9bb2e | Michael Hanselmann | logging.error("Network port is not a valid VNC display (%d < %d),"
|
1622 | afa9bb2e | Michael Hanselmann | " not starting VNC",
|
1623 | afa9bb2e | Michael Hanselmann | instance.network_port, constants.VNC_BASE_PORT) |
1624 | d0c8c01d | Iustin Pop | vnc_arg = "none"
|
1625 | 8b2d1013 | Guido Trotter | |
1626 | 8b2d1013 | Guido Trotter | # Only allow tls and other option when not binding to a file, for now.
|
1627 | 8b2d1013 | Guido Trotter | # kvm/qemu gets confused otherwise about the filename to use.
|
1628 | d0c8c01d | Iustin Pop | vnc_append = ""
|
1629 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_TLS]:
|
1630 | d0c8c01d | Iustin Pop | vnc_append = "%s,tls" % vnc_append
|
1631 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_X509_VERIFY]:
|
1632 | d0c8c01d | Iustin Pop | vnc_append = "%s,x509verify=%s" % (vnc_append,
|
1633 | a985b417 | Iustin Pop | hvp[constants.HV_VNC_X509]) |
1634 | a985b417 | Iustin Pop | elif hvp[constants.HV_VNC_X509]:
|
1635 | d0c8c01d | Iustin Pop | vnc_append = "%s,x509=%s" % (vnc_append,
|
1636 | a985b417 | Iustin Pop | hvp[constants.HV_VNC_X509]) |
1637 | 6e6bb8d5 | Guido Trotter | if hvp[constants.HV_VNC_PASSWORD_FILE]:
|
1638 | d0c8c01d | Iustin Pop | vnc_append = "%s,password" % vnc_append
|
1639 | 6e6bb8d5 | Guido Trotter | |
1640 | d0c8c01d | Iustin Pop | vnc_arg = "%s%s" % (vnc_arg, vnc_append)
|
1641 | 8b2d1013 | Guido Trotter | |
1642 | 8470c8db | Guido Trotter | else:
|
1643 | d0c8c01d | Iustin Pop | vnc_arg = "unix:%s/%s.vnc" % (vnc_bind_address, instance.name)
|
1644 | 8b2d1013 | Guido Trotter | |
1645 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-vnc", vnc_arg])
|
1646 | 596b2459 | Guido Trotter | elif spice_bind:
|
1647 | 839642c2 | Iustin Pop | # FIXME: this is wrong here; the iface ip address differs
|
1648 | 839642c2 | Iustin Pop | # between systems, so it should be done in _ExecuteKVMRuntime
|
1649 | b1cb62bd | Andrea Spadaccini | if netutils.IsValidInterface(spice_bind):
|
1650 | b1cb62bd | Andrea Spadaccini | # The user specified a network interface, we have to figure out the IP
|
1651 | b1cb62bd | Andrea Spadaccini | # address.
|
1652 | b1cb62bd | Andrea Spadaccini | addresses = netutils.GetInterfaceIpAddresses(spice_bind) |
1653 | b1cb62bd | Andrea Spadaccini | spice_ip_version = hvp[constants.HV_KVM_SPICE_IP_VERSION] |
1654 | b1cb62bd | Andrea Spadaccini | |
1655 | b1cb62bd | Andrea Spadaccini | # if the user specified an IP version and the interface does not
|
1656 | b1cb62bd | Andrea Spadaccini | # have that kind of IP addresses, throw an exception
|
1657 | b1cb62bd | Andrea Spadaccini | if spice_ip_version != constants.IFACE_NO_IP_VERSION_SPECIFIED:
|
1658 | b1cb62bd | Andrea Spadaccini | if not addresses[spice_ip_version]: |
1659 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("SPICE: Unable to get an IPv%s address" |
1660 | b1cb62bd | Andrea Spadaccini | " for %s" % (spice_ip_version,
|
1661 | b1cb62bd | Andrea Spadaccini | spice_bind)) |
1662 | b1cb62bd | Andrea Spadaccini | |
1663 | b1cb62bd | Andrea Spadaccini | # the user did not specify an IP version, we have to figure it out
|
1664 | b1cb62bd | Andrea Spadaccini | elif (addresses[constants.IP4_VERSION] and |
1665 | b1cb62bd | Andrea Spadaccini | addresses[constants.IP6_VERSION]): |
1666 | b1cb62bd | Andrea Spadaccini | # we have both ipv4 and ipv6, let's use the cluster default IP
|
1667 | b1cb62bd | Andrea Spadaccini | # version
|
1668 | b1cb62bd | Andrea Spadaccini | cluster_family = ssconf.SimpleStore().GetPrimaryIPFamily() |
1669 | 65107a2f | Michael Hanselmann | spice_ip_version = \ |
1670 | 65107a2f | Michael Hanselmann | netutils.IPAddress.GetVersionFromAddressFamily(cluster_family) |
1671 | b1cb62bd | Andrea Spadaccini | elif addresses[constants.IP4_VERSION]:
|
1672 | b1cb62bd | Andrea Spadaccini | spice_ip_version = constants.IP4_VERSION |
1673 | b845c8a1 | Andrea Spadaccini | elif addresses[constants.IP6_VERSION]:
|
1674 | b1cb62bd | Andrea Spadaccini | spice_ip_version = constants.IP6_VERSION |
1675 | b845c8a1 | Andrea Spadaccini | else:
|
1676 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("SPICE: Unable to get an IP address" |
1677 | b845c8a1 | Andrea Spadaccini | " for %s" % (spice_bind))
|
1678 | b1cb62bd | Andrea Spadaccini | |
1679 | b1cb62bd | Andrea Spadaccini | spice_address = addresses[spice_ip_version][0]
|
1680 | b1cb62bd | Andrea Spadaccini | |
1681 | b1cb62bd | Andrea Spadaccini | else:
|
1682 | b1cb62bd | Andrea Spadaccini | # spice_bind is known to be a valid IP address, because
|
1683 | b1cb62bd | Andrea Spadaccini | # ValidateParameters checked it.
|
1684 | b1cb62bd | Andrea Spadaccini | spice_address = spice_bind |
1685 | b1cb62bd | Andrea Spadaccini | |
1686 | bfe86c76 | Andrea Spadaccini | spice_arg = "addr=%s" % spice_address
|
1687 | bfe86c76 | Andrea Spadaccini | if hvp[constants.HV_KVM_SPICE_USE_TLS]:
|
1688 | 5ae4945a | Iustin Pop | spice_arg = ("%s,tls-port=%s,x509-cacert-file=%s" %
|
1689 | 5ae4945a | Iustin Pop | (spice_arg, instance.network_port, |
1690 | 9d9bded1 | Michael Hanselmann | pathutils.SPICE_CACERT_FILE)) |
1691 | 5ae4945a | Iustin Pop | spice_arg = ("%s,x509-key-file=%s,x509-cert-file=%s" %
|
1692 | 9d9bded1 | Michael Hanselmann | (spice_arg, pathutils.SPICE_CERT_FILE, |
1693 | 9d9bded1 | Michael Hanselmann | pathutils.SPICE_CERT_FILE)) |
1694 | 3e40b587 | Andrea Spadaccini | tls_ciphers = hvp[constants.HV_KVM_SPICE_TLS_CIPHERS] |
1695 | 3e40b587 | Andrea Spadaccini | if tls_ciphers:
|
1696 | 3e40b587 | Andrea Spadaccini | spice_arg = "%s,tls-ciphers=%s" % (spice_arg, tls_ciphers)
|
1697 | bfe86c76 | Andrea Spadaccini | else:
|
1698 | bfe86c76 | Andrea Spadaccini | spice_arg = "%s,port=%s" % (spice_arg, instance.network_port)
|
1699 | bfe86c76 | Andrea Spadaccini | |
1700 | b451c4c7 | Andrea Spadaccini | if not hvp[constants.HV_KVM_SPICE_PASSWORD_FILE]: |
1701 | b451c4c7 | Andrea Spadaccini | spice_arg = "%s,disable-ticketing" % spice_arg
|
1702 | b451c4c7 | Andrea Spadaccini | |
1703 | 11ae7a0a | Andrea Spadaccini | if spice_ip_version:
|
1704 | 11ae7a0a | Andrea Spadaccini | spice_arg = "%s,ipv%s" % (spice_arg, spice_ip_version)
|
1705 | b1cb62bd | Andrea Spadaccini | |
1706 | ea064d24 | Andrea Spadaccini | # Image compression options
|
1707 | ea064d24 | Andrea Spadaccini | img_lossless = hvp[constants.HV_KVM_SPICE_LOSSLESS_IMG_COMPR] |
1708 | ea064d24 | Andrea Spadaccini | img_jpeg = hvp[constants.HV_KVM_SPICE_JPEG_IMG_COMPR] |
1709 | ea064d24 | Andrea Spadaccini | img_zlib_glz = hvp[constants.HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR] |
1710 | ea064d24 | Andrea Spadaccini | if img_lossless:
|
1711 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,image-compression=%s" % (spice_arg, img_lossless)
|
1712 | ea064d24 | Andrea Spadaccini | if img_jpeg:
|
1713 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,jpeg-wan-compression=%s" % (spice_arg, img_jpeg)
|
1714 | ea064d24 | Andrea Spadaccini | if img_zlib_glz:
|
1715 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,zlib-glz-wan-compression=%s" % (spice_arg, img_zlib_glz)
|
1716 | ea064d24 | Andrea Spadaccini | |
1717 | ea064d24 | Andrea Spadaccini | # Video stream detection
|
1718 | ea064d24 | Andrea Spadaccini | video_streaming = hvp[constants.HV_KVM_SPICE_STREAMING_VIDEO_DETECTION] |
1719 | ea064d24 | Andrea Spadaccini | if video_streaming:
|
1720 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,streaming-video=%s" % (spice_arg, video_streaming)
|
1721 | ea064d24 | Andrea Spadaccini | |
1722 | ea064d24 | Andrea Spadaccini | # Audio compression, by default in qemu-kvm it is on
|
1723 | ea064d24 | Andrea Spadaccini | if not hvp[constants.HV_KVM_SPICE_AUDIO_COMPR]: |
1724 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,playback-compression=off" % spice_arg
|
1725 | 3e40b587 | Andrea Spadaccini | if not hvp[constants.HV_KVM_SPICE_USE_VDAGENT]: |
1726 | 3e40b587 | Andrea Spadaccini | spice_arg = "%s,agent-mouse=off" % spice_arg
|
1727 | 447af814 | Nikos Skalkotos | else:
|
1728 | 447af814 | Nikos Skalkotos | # Enable the spice agent communication channel between the host and the
|
1729 | 447af814 | Nikos Skalkotos | # agent.
|
1730 | 3a72e34a | Dimitris Aragiorgis | addr = _GetFreeSlot(pci_reservations, reserve=True)
|
1731 | 3a72e34a | Dimitris Aragiorgis | pci_info = ",bus=pci.0,addr=%s" % hex(addr) |
1732 | 3a72e34a | Dimitris Aragiorgis | kvm_cmd.extend(["-device", "virtio-serial-pci,id=spice%s" % pci_info]) |
1733 | afa9bb2e | Michael Hanselmann | kvm_cmd.extend([ |
1734 | afa9bb2e | Michael Hanselmann | "-device",
|
1735 | afa9bb2e | Michael Hanselmann | "virtserialport,chardev=spicechannel0,name=com.redhat.spice.0",
|
1736 | afa9bb2e | Michael Hanselmann | ]) |
1737 | 447af814 | Nikos Skalkotos | kvm_cmd.extend(["-chardev", "spicevmc,id=spicechannel0,name=vdagent"]) |
1738 | ea064d24 | Andrea Spadaccini | |
1739 | b1cb62bd | Andrea Spadaccini | logging.info("KVM: SPICE will listen on port %s", instance.network_port)
|
1740 | b1cb62bd | Andrea Spadaccini | kvm_cmd.extend(["-spice", spice_arg])
|
1741 | b1cb62bd | Andrea Spadaccini | |
1742 | 596b2459 | Guido Trotter | else:
|
1743 | 99c7cd5b | Guido Trotter | # From qemu 1.4 -nographic is incompatible with -daemonize. The new way
|
1744 | 99c7cd5b | Guido Trotter | # also works in earlier versions though (tested with 1.1 and 1.3)
|
1745 | 99c7cd5b | Guido Trotter | if self._DISPLAY_RE.search(kvmhelp): |
1746 | 99c7cd5b | Guido Trotter | kvm_cmd.extend(["-display", "none"]) |
1747 | 99c7cd5b | Guido Trotter | else:
|
1748 | 99c7cd5b | Guido Trotter | kvm_cmd.extend(["-nographic"])
|
1749 | 596b2459 | Guido Trotter | |
1750 | 6b970cef | Jun Futagawa | if hvp[constants.HV_USE_LOCALTIME]:
|
1751 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-localtime"])
|
1752 | 6b970cef | Jun Futagawa | |
1753 | 547a63b7 | Balazs Lecz | if hvp[constants.HV_KVM_USE_CHROOT]:
|
1754 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-chroot", self._InstanceChrootDir(instance.name)]) |
1755 | 547a63b7 | Balazs Lecz | |
1756 | 7cb42171 | Nikita Staroverov | # Add qemu-KVM -cpu param
|
1757 | 7cb42171 | Nikita Staroverov | if hvp[constants.HV_CPU_TYPE]:
|
1758 | 7cb42171 | Nikita Staroverov | kvm_cmd.extend(["-cpu", hvp[constants.HV_CPU_TYPE]])
|
1759 | 7cb42171 | Nikita Staroverov | |
1760 | 7589346f | Guido Trotter | # Pass a -vga option if requested, or if spice is used, for backwards
|
1761 | 7589346f | Guido Trotter | # compatibility.
|
1762 | 7589346f | Guido Trotter | if hvp[constants.HV_VGA]:
|
1763 | 7589346f | Guido Trotter | kvm_cmd.extend(["-vga", hvp[constants.HV_VGA]])
|
1764 | 7589346f | Guido Trotter | elif spice_bind:
|
1765 | 7589346f | Guido Trotter | kvm_cmd.extend(["-vga", "qxl"]) |
1766 | 7589346f | Guido Trotter | |
1767 | 156681c1 | Guido Trotter | # Various types of usb devices, comma separated
|
1768 | 156681c1 | Guido Trotter | if hvp[constants.HV_USB_DEVICES]:
|
1769 | 156681c1 | Guido Trotter | for dev in hvp[constants.HV_USB_DEVICES].split(","): |
1770 | 156681c1 | Guido Trotter | kvm_cmd.extend(["-usbdevice", dev])
|
1771 | 156681c1 | Guido Trotter | |
1772 | 8feeb253 | Christos Stavrakakis | # Set system UUID to instance UUID
|
1773 | 8feeb253 | Christos Stavrakakis | if self._UUID_RE.search(kvmhelp): |
1774 | 8feeb253 | Christos Stavrakakis | kvm_cmd.extend(["-uuid", instance.uuid])
|
1775 | 8feeb253 | Christos Stavrakakis | |
1776 | e6f24d89 | Guido Trotter | if hvp[constants.HV_KVM_EXTRA]:
|
1777 | a967416c | Guido Trotter | kvm_cmd.extend(hvp[constants.HV_KVM_EXTRA].split(" "))
|
1778 | e6f24d89 | Guido Trotter | |
1779 | 0fe22ad2 | Dimitris Aragiorgis | kvm_disks = [] |
1780 | a7ccf635 | Dimitris Aragiorgis | for disk, link_name, uri in block_devices: |
1781 | d13fb3f1 | Dimitris Aragiorgis | disk.pci = _GetFreeSlot(pci_reservations, disk.pci, True)
|
1782 | a7ccf635 | Dimitris Aragiorgis | kvm_disks.append((disk, link_name, uri)) |
1783 | 0fe22ad2 | Dimitris Aragiorgis | |
1784 | 0fe22ad2 | Dimitris Aragiorgis | kvm_nics = [] |
1785 | 0fe22ad2 | Dimitris Aragiorgis | for nic in instance.nics: |
1786 | d13fb3f1 | Dimitris Aragiorgis | nic.pci = _GetFreeSlot(pci_reservations, nic.pci, True)
|
1787 | 0fe22ad2 | Dimitris Aragiorgis | kvm_nics.append(nic) |
1788 | 0fe22ad2 | Dimitris Aragiorgis | |
1789 | a985b417 | Iustin Pop | hvparams = hvp |
1790 | ee5f20b0 | Guido Trotter | |
1791 | 0fe22ad2 | Dimitris Aragiorgis | return (kvm_cmd, kvm_nics, hvparams, kvm_disks)
|
1792 | ee5f20b0 | Guido Trotter | |
1793 | 38e250ba | Guido Trotter | def _WriteKVMRuntime(self, instance_name, data): |
1794 | 38e250ba | Guido Trotter | """Write an instance's KVM runtime
|
1795 | 38e250ba | Guido Trotter |
|
1796 | 38e250ba | Guido Trotter | """
|
1797 | 38e250ba | Guido Trotter | try:
|
1798 | 38e250ba | Guido Trotter | utils.WriteFile(self._InstanceKVMRuntime(instance_name),
|
1799 | 38e250ba | Guido Trotter | data=data) |
1800 | 90c024f6 | Guido Trotter | except EnvironmentError, err: |
1801 | 38e250ba | Guido Trotter | raise errors.HypervisorError("Failed to save KVM runtime file: %s" % err) |
1802 | 38e250ba | Guido Trotter | |
1803 | 38e250ba | Guido Trotter | def _ReadKVMRuntime(self, instance_name): |
1804 | 38e250ba | Guido Trotter | """Read an instance's KVM runtime
|
1805 | 38e250ba | Guido Trotter |
|
1806 | 38e250ba | Guido Trotter | """
|
1807 | 38e250ba | Guido Trotter | try:
|
1808 | 38e250ba | Guido Trotter | file_content = utils.ReadFile(self._InstanceKVMRuntime(instance_name))
|
1809 | 90c024f6 | Guido Trotter | except EnvironmentError, err: |
1810 | 38e250ba | Guido Trotter | raise errors.HypervisorError("Failed to load KVM runtime file: %s" % err) |
1811 | 38e250ba | Guido Trotter | return file_content
|
1812 | 38e250ba | Guido Trotter | |
1813 | 38e250ba | Guido Trotter | def _SaveKVMRuntime(self, instance, kvm_runtime): |
1814 | 38e250ba | Guido Trotter | """Save an instance's KVM runtime
|
1815 | 38e250ba | Guido Trotter |
|
1816 | 38e250ba | Guido Trotter | """
|
1817 | 41a878b5 | Dimitris Aragiorgis | kvm_cmd, kvm_nics, hvparams, kvm_disks = kvm_runtime |
1818 | 0fe22ad2 | Dimitris Aragiorgis | |
1819 | 38e250ba | Guido Trotter | serialized_nics = [nic.ToDict() for nic in kvm_nics] |
1820 | 41a878b5 | Dimitris Aragiorgis | serialized_disks = [(blk.ToDict(), link, uri) |
1821 | 41a878b5 | Dimitris Aragiorgis | for blk, link, uri in kvm_disks] |
1822 | 0fe22ad2 | Dimitris Aragiorgis | serialized_form = serializer.Dump((kvm_cmd, serialized_nics, hvparams, |
1823 | 41a878b5 | Dimitris Aragiorgis | serialized_disks)) |
1824 | 0fe22ad2 | Dimitris Aragiorgis | |
1825 | 38e250ba | Guido Trotter | self._WriteKVMRuntime(instance.name, serialized_form)
|
1826 | 38e250ba | Guido Trotter | |
1827 | 30e42c4e | Guido Trotter | def _LoadKVMRuntime(self, instance, serialized_runtime=None): |
1828 | 38e250ba | Guido Trotter | """Load an instance's KVM runtime
|
1829 | 38e250ba | Guido Trotter |
|
1830 | 38e250ba | Guido Trotter | """
|
1831 | 30e42c4e | Guido Trotter | if not serialized_runtime: |
1832 | 30e42c4e | Guido Trotter | serialized_runtime = self._ReadKVMRuntime(instance.name)
|
1833 | 0fe22ad2 | Dimitris Aragiorgis | |
1834 | 0fe22ad2 | Dimitris Aragiorgis | return _AnalyzeSerializedRuntime(serialized_runtime)
|
1835 | 38e250ba | Guido Trotter | |
1836 | 5d9bfd87 | Apollon Oikonomopoulos | def _RunKVMCmd(self, name, kvm_cmd, tap_fds=None): |
1837 | 76431533 | Guido Trotter | """Run the KVM cmd and check for errors
|
1838 | 76431533 | Guido Trotter |
|
1839 | 76431533 | Guido Trotter | @type name: string
|
1840 | 76431533 | Guido Trotter | @param name: instance name
|
1841 | 76431533 | Guido Trotter | @type kvm_cmd: list of strings
|
1842 | 76431533 | Guido Trotter | @param kvm_cmd: runcmd input for kvm
|
1843 | 5d9bfd87 | Apollon Oikonomopoulos | @type tap_fds: list of int
|
1844 | 5d9bfd87 | Apollon Oikonomopoulos | @param tap_fds: fds of tap devices opened by Ganeti
|
1845 | 76431533 | Guido Trotter |
|
1846 | 76431533 | Guido Trotter | """
|
1847 | 5d9bfd87 | Apollon Oikonomopoulos | try:
|
1848 | 5d9bfd87 | Apollon Oikonomopoulos | result = utils.RunCmd(kvm_cmd, noclose_fds=tap_fds) |
1849 | 5d9bfd87 | Apollon Oikonomopoulos | finally:
|
1850 | 5d9bfd87 | Apollon Oikonomopoulos | for fd in tap_fds: |
1851 | 5d9bfd87 | Apollon Oikonomopoulos | utils_wrapper.CloseFdNoError(fd) |
1852 | 5d9bfd87 | Apollon Oikonomopoulos | |
1853 | 76431533 | Guido Trotter | if result.failed:
|
1854 | 76431533 | Guido Trotter | raise errors.HypervisorError("Failed to start instance %s: %s (%s)" % |
1855 | 76431533 | Guido Trotter | (name, result.fail_reason, result.output)) |
1856 | 76431533 | Guido Trotter | if not self._InstancePidAlive(name)[2]: |
1857 | 76431533 | Guido Trotter | raise errors.HypervisorError("Failed to start instance %s" % name) |
1858 | 76431533 | Guido Trotter | |
1859 | 81c717cd | Jose A. Lopes | @staticmethod
|
1860 | 81c717cd | Jose A. Lopes | def _GenerateTapName(nic): |
1861 | 81c717cd | Jose A. Lopes | """Generate a TAP network interface name for a NIC.
|
1862 | 81c717cd | Jose A. Lopes |
|
1863 | 81c717cd | Jose A. Lopes | This helper function generates a special TAP network interface
|
1864 | 81c717cd | Jose A. Lopes | name for NICs that are meant to be used in instance communication.
|
1865 | 81c717cd | Jose A. Lopes | This function checks the existing TAP interfaces in order to find
|
1866 | 81c717cd | Jose A. Lopes | a unique name for the new TAP network interface. The TAP network
|
1867 | 81c717cd | Jose A. Lopes | interface names are of the form 'gnt.com.%d', where '%d' is a
|
1868 | 81c717cd | Jose A. Lopes | unique number within the node.
|
1869 | 81c717cd | Jose A. Lopes |
|
1870 | 81c717cd | Jose A. Lopes | @type nic: ganeti.objects.NIC
|
1871 | 81c717cd | Jose A. Lopes | @param nic: NIC object for the name should be generated
|
1872 | 81c717cd | Jose A. Lopes |
|
1873 | 81c717cd | Jose A. Lopes | @rtype: string
|
1874 | 81c717cd | Jose A. Lopes | @return: TAP network interface name, or the empty string if the
|
1875 | 81c717cd | Jose A. Lopes | NIC is not used in instance communication
|
1876 | 81c717cd | Jose A. Lopes |
|
1877 | 81c717cd | Jose A. Lopes | """
|
1878 | 81c717cd | Jose A. Lopes | if nic.name is None or not \ |
1879 | 81c717cd | Jose A. Lopes | nic.name.startswith(constants.INSTANCE_COMMUNICATION_NIC_PREFIX): |
1880 | 81c717cd | Jose A. Lopes | return "" |
1881 | 81c717cd | Jose A. Lopes | |
1882 | 81c717cd | Jose A. Lopes | result = utils.RunCmd(["ip", "tuntap", "list"]) |
1883 | 81c717cd | Jose A. Lopes | |
1884 | 81c717cd | Jose A. Lopes | if result.failed:
|
1885 | 81c717cd | Jose A. Lopes | raise errors.HypervisorError("Failed to list TUN/TAP interfaces") |
1886 | 81c717cd | Jose A. Lopes | |
1887 | 81c717cd | Jose A. Lopes | idxs = set()
|
1888 | 81c717cd | Jose A. Lopes | |
1889 | 81c717cd | Jose A. Lopes | for line in result.output.splitlines(): |
1890 | 81c717cd | Jose A. Lopes | parts = line.split(": ", 1) |
1891 | 81c717cd | Jose A. Lopes | |
1892 | 81c717cd | Jose A. Lopes | if len(parts) < 2: |
1893 | 81c717cd | Jose A. Lopes | raise errors.HypervisorError("Failed to parse TUN/TAP interfaces") |
1894 | 81c717cd | Jose A. Lopes | |
1895 | 81c717cd | Jose A. Lopes | r = re.match(r"gnt\.com\.([0-9]+)", parts[0]) |
1896 | 81c717cd | Jose A. Lopes | |
1897 | 81c717cd | Jose A. Lopes | if r is not None: |
1898 | 81c717cd | Jose A. Lopes | idxs.add(int(r.group(1))) |
1899 | 81c717cd | Jose A. Lopes | |
1900 | 81c717cd | Jose A. Lopes | if idxs:
|
1901 | 81c717cd | Jose A. Lopes | idx = max(idxs) + 1 |
1902 | 81c717cd | Jose A. Lopes | else:
|
1903 | 81c717cd | Jose A. Lopes | idx = 0
|
1904 | 81c717cd | Jose A. Lopes | |
1905 | 81c717cd | Jose A. Lopes | return "gnt.com.%d" % idx |
1906 | 81c717cd | Jose A. Lopes | |
1907 | 41a878b5 | Dimitris Aragiorgis | # too many local variables
|
1908 | 0fe22ad2 | Dimitris Aragiorgis | # pylint: disable=R0914
|
1909 | b73f1c59 | Guido Trotter | def _ExecuteKVMRuntime(self, instance, kvm_runtime, kvmhelp, incoming=None): |
1910 | 839642c2 | Iustin Pop | """Execute a KVM cmd, after completing it with some last minute data.
|
1911 | ee5f20b0 | Guido Trotter |
|
1912 | 30e42c4e | Guido Trotter | @type incoming: tuple of strings
|
1913 | 30e42c4e | Guido Trotter | @param incoming: (target_host_ip, port)
|
1914 | b73f1c59 | Guido Trotter | @type kvmhelp: string
|
1915 | b73f1c59 | Guido Trotter | @param kvmhelp: output of kvm --help
|
1916 | 30e42c4e | Guido Trotter |
|
1917 | ee5f20b0 | Guido Trotter | """
|
1918 | 297e6e53 | Guido Trotter | # Small _ExecuteKVMRuntime hv parameters programming howto:
|
1919 | 297e6e53 | Guido Trotter | # - conf_hvp contains the parameters as configured on ganeti. they might
|
1920 | 297e6e53 | Guido Trotter | # have changed since the instance started; only use them if the change
|
1921 | 297e6e53 | Guido Trotter | # won't affect the inside of the instance (which hasn't been rebooted).
|
1922 | 297e6e53 | Guido Trotter | # - up_hvp contains the parameters as they were when the instance was
|
1923 | 297e6e53 | Guido Trotter | # started, plus any new parameter which has been added between ganeti
|
1924 | 297e6e53 | Guido Trotter | # versions: it is paramount that those default to a value which won't
|
1925 | 297e6e53 | Guido Trotter | # affect the inside of the instance as well.
|
1926 | 297e6e53 | Guido Trotter | conf_hvp = instance.hvparams |
1927 | 5905901c | Iustin Pop | name = instance.name |
1928 | 5905901c | Iustin Pop | self._CheckDown(name)
|
1929 | ee5f20b0 | Guido Trotter | |
1930 | 95d70148 | Jose A. Lopes | self._ClearUserShutdown(instance.name)
|
1931 | 95d70148 | Jose A. Lopes | self._StartKvmd(instance.hvparams)
|
1932 | 95d70148 | Jose A. Lopes | |
1933 | ee5f20b0 | Guido Trotter | temp_files = [] |
1934 | ee5f20b0 | Guido Trotter | |
1935 | 41a878b5 | Dimitris Aragiorgis | kvm_cmd, kvm_nics, up_hvp, kvm_disks = kvm_runtime |
1936 | f0db563d | Guido Trotter | # the first element of kvm_cmd is always the path to the kvm binary
|
1937 | f0db563d | Guido Trotter | kvm_path = kvm_cmd[0]
|
1938 | 297e6e53 | Guido Trotter | up_hvp = objects.FillDict(conf_hvp, up_hvp) |
1939 | ee5f20b0 | Guido Trotter | |
1940 | 297e6e53 | Guido Trotter | # We know it's safe to run as a different user upon migration, so we'll use
|
1941 | 297e6e53 | Guido Trotter | # the latest conf, from conf_hvp.
|
1942 | 297e6e53 | Guido Trotter | security_model = conf_hvp[constants.HV_SECURITY_MODEL] |
1943 | cef34868 | Guido Trotter | if security_model == constants.HT_SM_USER:
|
1944 | 297e6e53 | Guido Trotter | kvm_cmd.extend(["-runas", conf_hvp[constants.HV_SECURITY_DOMAIN]])
|
1945 | cef34868 | Guido Trotter | |
1946 | 839642c2 | Iustin Pop | keymap = conf_hvp[constants.HV_KEYMAP] |
1947 | 839642c2 | Iustin Pop | if keymap:
|
1948 | 839642c2 | Iustin Pop | keymap_path = self._InstanceKeymapFile(name)
|
1949 | 839642c2 | Iustin Pop | # If a keymap file is specified, KVM won't use its internal defaults. By
|
1950 | 839642c2 | Iustin Pop | # first including the "en-us" layout, an error on loading the actual
|
1951 | 839642c2 | Iustin Pop | # layout (e.g. because it can't be found) won't lead to a non-functional
|
1952 | 839642c2 | Iustin Pop | # keyboard. A keyboard with incorrect keys is still better than none.
|
1953 | 839642c2 | Iustin Pop | utils.WriteFile(keymap_path, data="include en-us\ninclude %s\n" % keymap)
|
1954 | 839642c2 | Iustin Pop | kvm_cmd.extend(["-k", keymap_path])
|
1955 | 839642c2 | Iustin Pop | |
1956 | 297e6e53 | Guido Trotter | # We have reasons to believe changing something like the nic driver/type
|
1957 | 297e6e53 | Guido Trotter | # upon migration won't exactly fly with the instance kernel, so for nic
|
1958 | 297e6e53 | Guido Trotter | # related parameters we'll use up_hvp
|
1959 | 5d9bfd87 | Apollon Oikonomopoulos | tapfds = [] |
1960 | 5d9bfd87 | Apollon Oikonomopoulos | taps = [] |
1961 | 43c6e76f | Dimitris Aragiorgis | devlist = self._GetKVMOutput(kvm_path, self._KVMOPT_DEVICELIST) |
1962 | ee5f20b0 | Guido Trotter | if not kvm_nics: |
1963 | fbe27e2b | Guido Trotter | kvm_cmd.extend(["-net", "none"]) |
1964 | ee5f20b0 | Guido Trotter | else:
|
1965 | 5d9bfd87 | Apollon Oikonomopoulos | vnet_hdr = False
|
1966 | fbe27e2b | Guido Trotter | tap_extra = ""
|
1967 | 297e6e53 | Guido Trotter | nic_type = up_hvp[constants.HV_NIC_TYPE] |
1968 | 37f88dc6 | Guido Trotter | if nic_type == constants.HT_NIC_PARAVIRTUAL:
|
1969 | f0db563d | Guido Trotter | nic_model = self._VIRTIO
|
1970 | f0db563d | Guido Trotter | try:
|
1971 | a16f0d77 | Dimitris Aragiorgis | if self._VIRTIO_NET_RE.search(devlist): |
1972 | f0db563d | Guido Trotter | nic_model = self._VIRTIO_NET_PCI
|
1973 | 8a534fbe | Stratos Psomdakis | vnet_hdr = up_hvp[constants.HV_VNET_HDR] |
1974 | f0db563d | Guido Trotter | except errors.HypervisorError, _:
|
1975 | f0db563d | Guido Trotter | # Older versions of kvm don't support DEVICE_LIST, but they don't
|
1976 | f0db563d | Guido Trotter | # have new virtio syntax either.
|
1977 | f0db563d | Guido Trotter | pass
|
1978 | 4b784cf8 | Miguel Di Ciurcio Filho | |
1979 | 297e6e53 | Guido Trotter | if up_hvp[constants.HV_VHOST_NET]:
|
1980 | 3b59ec02 | Guido Trotter | # check for vhost_net support
|
1981 | 0ad7f5d8 | Guido Trotter | if self._VHOST_RE.search(kvmhelp): |
1982 | 4b784cf8 | Miguel Di Ciurcio Filho | tap_extra = ",vhost=on"
|
1983 | 4b784cf8 | Miguel Di Ciurcio Filho | else:
|
1984 | 4b784cf8 | Miguel Di Ciurcio Filho | raise errors.HypervisorError("vhost_net is configured" |
1985 | 5ae4945a | Iustin Pop | " but it is not available")
|
1986 | 37f88dc6 | Guido Trotter | else:
|
1987 | 4b784cf8 | Miguel Di Ciurcio Filho | nic_model = nic_type |
1988 | 37f88dc6 | Guido Trotter | |
1989 | 6f4070cd | Guido Trotter | kvm_supports_netdev = self._NETDEV_RE.search(kvmhelp)
|
1990 | 6f4070cd | Guido Trotter | |
1991 | ee5f20b0 | Guido Trotter | for nic_seq, nic in enumerate(kvm_nics): |
1992 | 81c717cd | Jose A. Lopes | tapname, tapfd = _OpenTap(vnet_hdr=vnet_hdr, |
1993 | 81c717cd | Jose A. Lopes | name=self._GenerateTapName(nic))
|
1994 | 5d9bfd87 | Apollon Oikonomopoulos | tapfds.append(tapfd) |
1995 | 5d9bfd87 | Apollon Oikonomopoulos | taps.append(tapname) |
1996 | 6f4070cd | Guido Trotter | if kvm_supports_netdev:
|
1997 | a7ccf635 | Dimitris Aragiorgis | nic_val = "%s,mac=%s" % (nic_model, nic.mac)
|
1998 | a7ccf635 | Dimitris Aragiorgis | try:
|
1999 | a7ccf635 | Dimitris Aragiorgis | # kvm_nics already exist in old runtime files and thus there might
|
2000 | a7ccf635 | Dimitris Aragiorgis | # be some entries without pci slot (therefore try: except:)
|
2001 | a7ccf635 | Dimitris Aragiorgis | kvm_devid = _GenerateDeviceKVMId(constants.HOTPLUG_TARGET_NIC, nic) |
2002 | a7ccf635 | Dimitris Aragiorgis | netdev = kvm_devid |
2003 | a7ccf635 | Dimitris Aragiorgis | nic_val += (",id=%s,bus=pci.0,addr=%s" % (kvm_devid, hex(nic.pci))) |
2004 | a7ccf635 | Dimitris Aragiorgis | except errors.HotplugError:
|
2005 | a7ccf635 | Dimitris Aragiorgis | netdev = "netdev%d" % nic_seq
|
2006 | a7ccf635 | Dimitris Aragiorgis | nic_val += (",netdev=%s" % netdev)
|
2007 | a7ccf635 | Dimitris Aragiorgis | tap_val = ("type=tap,id=%s,fd=%d%s" %
|
2008 | a7ccf635 | Dimitris Aragiorgis | (netdev, tapfd, tap_extra)) |
2009 | 4b784cf8 | Miguel Di Ciurcio Filho | kvm_cmd.extend(["-netdev", tap_val, "-device", nic_val]) |
2010 | 4b784cf8 | Miguel Di Ciurcio Filho | else:
|
2011 | 049383d9 | Adeodato Simo | nic_val = "nic,vlan=%s,macaddr=%s,model=%s" % (nic_seq,
|
2012 | 049383d9 | Adeodato Simo | nic.mac, nic_model) |
2013 | 5d9bfd87 | Apollon Oikonomopoulos | tap_val = "tap,vlan=%s,fd=%d" % (nic_seq, tapfd)
|
2014 | 4b784cf8 | Miguel Di Ciurcio Filho | kvm_cmd.extend(["-net", tap_val, "-net", nic_val]) |
2015 | ee5f20b0 | Guido Trotter | |
2016 | 30e42c4e | Guido Trotter | if incoming:
|
2017 | 30e42c4e | Guido Trotter | target, port = incoming |
2018 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-incoming", "tcp:%s:%s" % (target, port)]) |
2019 | 30e42c4e | Guido Trotter | |
2020 | 297e6e53 | Guido Trotter | # Changing the vnc password doesn't bother the guest that much. At most it
|
2021 | 297e6e53 | Guido Trotter | # will surprise people who connect to it. Whether positively or negatively
|
2022 | 297e6e53 | Guido Trotter | # it's debatable.
|
2023 | 297e6e53 | Guido Trotter | vnc_pwd_file = conf_hvp[constants.HV_VNC_PASSWORD_FILE] |
2024 | 6e6bb8d5 | Guido Trotter | vnc_pwd = None
|
2025 | 6e6bb8d5 | Guido Trotter | if vnc_pwd_file:
|
2026 | 6e6bb8d5 | Guido Trotter | try:
|
2027 | 682f7601 | Guido Trotter | vnc_pwd = utils.ReadOneLineFile(vnc_pwd_file, strict=True)
|
2028 | 6e6bb8d5 | Guido Trotter | except EnvironmentError, err: |
2029 | 6e6bb8d5 | Guido Trotter | raise errors.HypervisorError("Failed to open VNC password file %s: %s" |
2030 | 6e6bb8d5 | Guido Trotter | % (vnc_pwd_file, err)) |
2031 | 6e6bb8d5 | Guido Trotter | |
2032 | 297e6e53 | Guido Trotter | if conf_hvp[constants.HV_KVM_USE_CHROOT]:
|
2033 | 547a63b7 | Balazs Lecz | utils.EnsureDirs([(self._InstanceChrootDir(name),
|
2034 | 547a63b7 | Balazs Lecz | constants.SECURE_DIR_MODE)]) |
2035 | 547a63b7 | Balazs Lecz | |
2036 | 91c10532 | Andrea Spadaccini | # Automatically enable QMP if version is >= 0.14
|
2037 | 0ad7f5d8 | Guido Trotter | if self._QMP_RE.search(kvmhelp): |
2038 | 91c10532 | Andrea Spadaccini | logging.debug("Enabling QMP")
|
2039 | 91c10532 | Andrea Spadaccini | kvm_cmd.extend(["-qmp", "unix:%s,server,nowait" % |
2040 | 5ae4945a | Iustin Pop | self._InstanceQmpMonitor(instance.name)])
|
2041 | 91c10532 | Andrea Spadaccini | |
2042 | cc8a8ed7 | Apollon Oikonomopoulos | # Configure the network now for starting instances and bridged interfaces,
|
2043 | cc8a8ed7 | Apollon Oikonomopoulos | # during FinalizeMigration for incoming instances' routed interfaces
|
2044 | cc8a8ed7 | Apollon Oikonomopoulos | for nic_seq, nic in enumerate(kvm_nics): |
2045 | cc8a8ed7 | Apollon Oikonomopoulos | if (incoming and |
2046 | cc8a8ed7 | Apollon Oikonomopoulos | nic.nicparams[constants.NIC_MODE] != constants.NIC_MODE_BRIDGED): |
2047 | cc8a8ed7 | Apollon Oikonomopoulos | continue
|
2048 | cc8a8ed7 | Apollon Oikonomopoulos | self._ConfigureNIC(instance, nic_seq, nic, taps[nic_seq])
|
2049 | 5d9bfd87 | Apollon Oikonomopoulos | |
2050 | 0fe22ad2 | Dimitris Aragiorgis | bdev_opts = self._GenerateKVMBlockDevicesOptions(instance,
|
2051 | 41a878b5 | Dimitris Aragiorgis | kvm_disks, |
2052 | 43c6e76f | Dimitris Aragiorgis | kvmhelp, |
2053 | 43c6e76f | Dimitris Aragiorgis | devlist) |
2054 | 0fe22ad2 | Dimitris Aragiorgis | kvm_cmd.extend(bdev_opts) |
2055 | 1d8a7812 | Andrea Spadaccini | # CPU affinity requires kvm to start paused, so we set this flag if the
|
2056 | 1d8a7812 | Andrea Spadaccini | # instance is not already paused and if we are not going to accept a
|
2057 | 1d8a7812 | Andrea Spadaccini | # migrating instance. In the latter case, pausing is not needed.
|
2058 | 1d8a7812 | Andrea Spadaccini | start_kvm_paused = not (_KVM_START_PAUSED_FLAG in kvm_cmd) and not incoming |
2059 | 945a7e67 | Guido Trotter | if start_kvm_paused:
|
2060 | 945a7e67 | Guido Trotter | kvm_cmd.extend([_KVM_START_PAUSED_FLAG]) |
2061 | b693125f | Tsachy Shacham | |
2062 | b693125f | Tsachy Shacham | # Note: CPU pinning is using up_hvp since changes take effect
|
2063 | b693125f | Tsachy Shacham | # during instance startup anyway, and to avoid problems when soft
|
2064 | b693125f | Tsachy Shacham | # rebooting the instance.
|
2065 | c607b1f7 | Tsachy Shacham | cpu_pinning = False
|
2066 | b693125f | Tsachy Shacham | if up_hvp.get(constants.HV_CPU_MASK, None): |
2067 | b693125f | Tsachy Shacham | cpu_pinning = True
|
2068 | b693125f | Tsachy Shacham | |
2069 | 76431533 | Guido Trotter | if security_model == constants.HT_SM_POOL:
|
2070 | 76431533 | Guido Trotter | ss = ssconf.SimpleStore() |
2071 | 76431533 | Guido Trotter | uid_pool = uidpool.ParseUidPool(ss.GetUidPool(), separator="\n")
|
2072 | 76431533 | Guido Trotter | all_uids = set(uidpool.ExpandUidPool(uid_pool))
|
2073 | 76431533 | Guido Trotter | uid = uidpool.RequestUnusedUid(all_uids) |
2074 | 76431533 | Guido Trotter | try:
|
2075 | 76431533 | Guido Trotter | username = pwd.getpwuid(uid.GetUid()).pw_name |
2076 | 76431533 | Guido Trotter | kvm_cmd.extend(["-runas", username])
|
2077 | 5d9bfd87 | Apollon Oikonomopoulos | self._RunKVMCmd(name, kvm_cmd, tapfds)
|
2078 | 76431533 | Guido Trotter | except:
|
2079 | 76431533 | Guido Trotter | uidpool.ReleaseUid(uid) |
2080 | 76431533 | Guido Trotter | raise
|
2081 | 76431533 | Guido Trotter | else:
|
2082 | 76431533 | Guido Trotter | uid.Unlock() |
2083 | 3af16328 | Apollon Oikonomopoulos | utils.WriteFile(self._InstanceUidFile(name), data=uid.AsStr())
|
2084 | 76431533 | Guido Trotter | else:
|
2085 | 5d9bfd87 | Apollon Oikonomopoulos | self._RunKVMCmd(name, kvm_cmd, tapfds)
|
2086 | 5d9bfd87 | Apollon Oikonomopoulos | |
2087 | 5d9bfd87 | Apollon Oikonomopoulos | utils.EnsureDirs([(self._InstanceNICDir(instance.name),
|
2088 | 5d9bfd87 | Apollon Oikonomopoulos | constants.RUN_DIRS_MODE)]) |
2089 | 5d9bfd87 | Apollon Oikonomopoulos | for nic_seq, tap in enumerate(taps): |
2090 | 5d9bfd87 | Apollon Oikonomopoulos | utils.WriteFile(self._InstanceNICFile(instance.name, nic_seq),
|
2091 | 5d9bfd87 | Apollon Oikonomopoulos | data=tap) |
2092 | eb58f9b1 | Guido Trotter | |
2093 | 6e6bb8d5 | Guido Trotter | if vnc_pwd:
|
2094 | d0c8c01d | Iustin Pop | change_cmd = "change vnc password %s" % vnc_pwd
|
2095 | 6e6bb8d5 | Guido Trotter | self._CallMonitorCommand(instance.name, change_cmd)
|
2096 | 6e6bb8d5 | Guido Trotter | |
2097 | b451c4c7 | Andrea Spadaccini | # Setting SPICE password. We are not vulnerable to malicious passwordless
|
2098 | b451c4c7 | Andrea Spadaccini | # connection attempts because SPICE by default does not allow connections
|
2099 | b451c4c7 | Andrea Spadaccini | # if neither a password nor the "disable_ticketing" options are specified.
|
2100 | b451c4c7 | Andrea Spadaccini | # As soon as we send the password via QMP, that password is a valid ticket
|
2101 | b451c4c7 | Andrea Spadaccini | # for connection.
|
2102 | b451c4c7 | Andrea Spadaccini | spice_password_file = conf_hvp[constants.HV_KVM_SPICE_PASSWORD_FILE] |
2103 | b451c4c7 | Andrea Spadaccini | if spice_password_file:
|
2104 | fc84cd5d | Guido Trotter | spice_pwd = ""
|
2105 | b451c4c7 | Andrea Spadaccini | try:
|
2106 | b451c4c7 | Andrea Spadaccini | spice_pwd = utils.ReadOneLineFile(spice_password_file, strict=True)
|
2107 | b451c4c7 | Andrea Spadaccini | except EnvironmentError, err: |
2108 | b451c4c7 | Andrea Spadaccini | raise errors.HypervisorError("Failed to open SPICE password file %s: %s" |
2109 | b451c4c7 | Andrea Spadaccini | % (spice_password_file, err)) |
2110 | b451c4c7 | Andrea Spadaccini | |
2111 | fc84cd5d | Guido Trotter | qmp = QmpConnection(self._InstanceQmpMonitor(instance.name))
|
2112 | fc84cd5d | Guido Trotter | qmp.connect() |
2113 | fc84cd5d | Guido Trotter | arguments = { |
2114 | fc84cd5d | Guido Trotter | "protocol": "spice", |
2115 | fc84cd5d | Guido Trotter | "password": spice_pwd,
|
2116 | fc84cd5d | Guido Trotter | } |
2117 | fc84cd5d | Guido Trotter | qmp.Execute("set_password", arguments)
|
2118 | fc84cd5d | Guido Trotter | |
2119 | 08137f9e | Iustin Pop | for filename in temp_files: |
2120 | 08137f9e | Iustin Pop | utils.RemoveFile(filename) |
2121 | eb58f9b1 | Guido Trotter | |
2122 | b693125f | Tsachy Shacham | # If requested, set CPU affinity and resume instance execution
|
2123 | b693125f | Tsachy Shacham | if cpu_pinning:
|
2124 | 945a7e67 | Guido Trotter | self._ExecuteCpuAffinity(instance.name, up_hvp[constants.HV_CPU_MASK])
|
2125 | 945a7e67 | Guido Trotter | |
2126 | 61eb1a46 | Guido Trotter | start_memory = self._InstanceStartupMemory(instance)
|
2127 | 61eb1a46 | Guido Trotter | if start_memory < instance.beparams[constants.BE_MAXMEM]:
|
2128 | 61eb1a46 | Guido Trotter | self.BalloonInstanceMemory(instance, start_memory)
|
2129 | 61eb1a46 | Guido Trotter | |
2130 | 945a7e67 | Guido Trotter | if start_kvm_paused:
|
2131 | 2ed0e208 | Iustin Pop | # To control CPU pinning, ballooning, and vnc/spice passwords
|
2132 | 2ed0e208 | Iustin Pop | # the VM was started in a frozen state. If freezing was not
|
2133 | 2ed0e208 | Iustin Pop | # explicitly requested resume the vm status.
|
2134 | 945a7e67 | Guido Trotter | self._CallMonitorCommand(instance.name, self._CONT_CMD) |
2135 | b693125f | Tsachy Shacham | |
2136 | 95d70148 | Jose A. Lopes | @staticmethod
|
2137 | 95d70148 | Jose A. Lopes | def _StartKvmd(hvparams): |
2138 | 95d70148 | Jose A. Lopes | """Ensure that the Kvm daemon is running.
|
2139 | 95d70148 | Jose A. Lopes |
|
2140 | 95d70148 | Jose A. Lopes | """
|
2141 | 95d70148 | Jose A. Lopes | if hvparams is None \ |
2142 | 95d70148 | Jose A. Lopes | or not hvparams[constants.HV_KVM_USER_SHUTDOWN] \ |
2143 | 95d70148 | Jose A. Lopes | or utils.IsDaemonAlive(constants.KVMD):
|
2144 | 95d70148 | Jose A. Lopes | return
|
2145 | 95d70148 | Jose A. Lopes | |
2146 | 95d70148 | Jose A. Lopes | result = utils.RunCmd(constants.KVMD) |
2147 | 95d70148 | Jose A. Lopes | |
2148 | 95d70148 | Jose A. Lopes | if result.failed:
|
2149 | 95d70148 | Jose A. Lopes | raise errors.HypervisorError("Failed to start KVM daemon") |
2150 | 95d70148 | Jose A. Lopes | |
2151 | 323f9095 | Stephen Shirley | def StartInstance(self, instance, block_devices, startup_paused): |
2152 | ee5f20b0 | Guido Trotter | """Start an instance.
|
2153 | ee5f20b0 | Guido Trotter |
|
2154 | ee5f20b0 | Guido Trotter | """
|
2155 | 5905901c | Iustin Pop | self._CheckDown(instance.name)
|
2156 | 4b9638dc | Guido Trotter | kvmpath = instance.hvparams[constants.HV_KVM_PATH] |
2157 | 6e043e60 | Guido Trotter | kvmhelp = self._GetKVMOutput(kvmpath, self._KVMOPT_HELP) |
2158 | 7238edb5 | Iustin Pop | kvm_runtime = self._GenerateKVMRuntime(instance, block_devices,
|
2159 | b73f1c59 | Guido Trotter | startup_paused, kvmhelp) |
2160 | 38e250ba | Guido Trotter | self._SaveKVMRuntime(instance, kvm_runtime)
|
2161 | b73f1c59 | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime, kvmhelp)
|
2162 | ee5f20b0 | Guido Trotter | |
2163 | 70f25a49 | Jose A. Lopes | @classmethod
|
2164 | 205d3309 | Klaus Aehlig | def _CallMonitorCommand(cls, instance_name, command, timeout=None): |
2165 | 6567aff3 | Guido Trotter | """Invoke a command on the instance monitor.
|
2166 | 6567aff3 | Guido Trotter |
|
2167 | 6567aff3 | Guido Trotter | """
|
2168 | 2a2d087a | Michele Tartara | if timeout is not None: |
2169 | 2a2d087a | Michele Tartara | timeout_cmd = "timeout %s" % (timeout, )
|
2170 | 2a2d087a | Michele Tartara | else:
|
2171 | 2a2d087a | Michele Tartara | timeout_cmd = ""
|
2172 | 2a2d087a | Michele Tartara | |
2173 | eace6157 | Michael Hanselmann | # TODO: Replace monitor calls with QMP once KVM >= 0.14 is the minimum
|
2174 | eace6157 | Michael Hanselmann | # version. The monitor protocol is designed for human consumption, whereas
|
2175 | eace6157 | Michael Hanselmann | # QMP is made for programmatic usage. In the worst case QMP can also
|
2176 | eace6157 | Michael Hanselmann | # execute monitor commands. As it is, all calls to socat take at least
|
2177 | eace6157 | Michael Hanselmann | # 500ms and likely more: socat can't detect the end of the reply and waits
|
2178 | eace6157 | Michael Hanselmann | # for 500ms of no data received before exiting (500 ms is the default for
|
2179 | eace6157 | Michael Hanselmann | # the "-t" parameter).
|
2180 | 874f6148 | Michele Tartara | socat = ("echo %s | %s %s STDIO UNIX-CONNECT:%s" %
|
2181 | 6567aff3 | Guido Trotter | (utils.ShellQuote(command), |
2182 | 874f6148 | Michele Tartara | timeout_cmd, |
2183 | 6567aff3 | Guido Trotter | constants.SOCAT_PATH, |
2184 | 70f25a49 | Jose A. Lopes | utils.ShellQuote(cls._InstanceMonitor(instance_name)))) |
2185 | 6567aff3 | Guido Trotter | result = utils.RunCmd(socat) |
2186 | 6567aff3 | Guido Trotter | if result.failed:
|
2187 | afa9bb2e | Michael Hanselmann | msg = ("Failed to send command '%s' to instance '%s', reason '%s',"
|
2188 | afa9bb2e | Michael Hanselmann | " output: %s" %
|
2189 | afa9bb2e | Michael Hanselmann | (command, instance_name, result.fail_reason, result.output)) |
2190 | 6567aff3 | Guido Trotter | raise errors.HypervisorError(msg)
|
2191 | 6567aff3 | Guido Trotter | |
2192 | 6567aff3 | Guido Trotter | return result
|
2193 | 6567aff3 | Guido Trotter | |
2194 | 2615646c | Dimitris Aragiorgis | def _GetFreePCISlot(self, instance, dev): |
2195 | 2615646c | Dimitris Aragiorgis | """Get the first available pci slot of a runnung instance.
|
2196 | 2615646c | Dimitris Aragiorgis |
|
2197 | 2615646c | Dimitris Aragiorgis | """
|
2198 | 2615646c | Dimitris Aragiorgis | slots = bitarray(32)
|
2199 | 2615646c | Dimitris Aragiorgis | slots.setall(False) # pylint: disable=E1101 |
2200 | 2615646c | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance.name, self._INFO_PCI_CMD) |
2201 | 2615646c | Dimitris Aragiorgis | for line in output.stdout.splitlines(): |
2202 | 2615646c | Dimitris Aragiorgis | match = self._INFO_PCI_RE.search(line)
|
2203 | 2615646c | Dimitris Aragiorgis | if match:
|
2204 | 2615646c | Dimitris Aragiorgis | slot = int(match.group(1)) |
2205 | 2615646c | Dimitris Aragiorgis | slots[slot] = True
|
2206 | 2615646c | Dimitris Aragiorgis | |
2207 | d13fb3f1 | Dimitris Aragiorgis | dev.pci = _GetFreeSlot(slots) |
2208 | 2615646c | Dimitris Aragiorgis | |
2209 | 50e0f1d9 | Dimitris Aragiorgis | def VerifyHotplugSupport(self, instance, action, dev_type): |
2210 | 50e0f1d9 | Dimitris Aragiorgis | """Verifies that hotplug is supported.
|
2211 | 97cd9092 | Dimitris Aragiorgis |
|
2212 | 97cd9092 | Dimitris Aragiorgis | Hotplug is *not* supported in case of:
|
2213 | 97cd9092 | Dimitris Aragiorgis | - security models and chroot (disk hotplug)
|
2214 | 97cd9092 | Dimitris Aragiorgis | - fdsend module is missing (nic hot-add)
|
2215 | 97cd9092 | Dimitris Aragiorgis |
|
2216 | 50e0f1d9 | Dimitris Aragiorgis | @raise errors.HypervisorError: in one of the previous cases
|
2217 | 97cd9092 | Dimitris Aragiorgis |
|
2218 | 97cd9092 | Dimitris Aragiorgis | """
|
2219 | 97cd9092 | Dimitris Aragiorgis | if dev_type == constants.HOTPLUG_TARGET_DISK:
|
2220 | 97cd9092 | Dimitris Aragiorgis | hvp = instance.hvparams |
2221 | 97cd9092 | Dimitris Aragiorgis | security_model = hvp[constants.HV_SECURITY_MODEL] |
2222 | 97cd9092 | Dimitris Aragiorgis | use_chroot = hvp[constants.HV_KVM_USE_CHROOT] |
2223 | 97cd9092 | Dimitris Aragiorgis | if use_chroot:
|
2224 | 97cd9092 | Dimitris Aragiorgis | raise errors.HotplugError("Disk hotplug is not supported" |
2225 | 97cd9092 | Dimitris Aragiorgis | " in case of chroot.")
|
2226 | 97cd9092 | Dimitris Aragiorgis | if security_model != constants.HT_SM_NONE:
|
2227 | 97cd9092 | Dimitris Aragiorgis | raise errors.HotplugError("Disk Hotplug is not supported in case" |
2228 | 97cd9092 | Dimitris Aragiorgis | " security models are used.")
|
2229 | 97cd9092 | Dimitris Aragiorgis | |
2230 | 97cd9092 | Dimitris Aragiorgis | if (dev_type == constants.HOTPLUG_TARGET_NIC and |
2231 | 97cd9092 | Dimitris Aragiorgis | action == constants.HOTPLUG_ACTION_ADD and not fdsend): |
2232 | 97cd9092 | Dimitris Aragiorgis | raise errors.HotplugError("Cannot hot-add NIC." |
2233 | 97cd9092 | Dimitris Aragiorgis | " fdsend python module is missing.")
|
2234 | 97cd9092 | Dimitris Aragiorgis | |
2235 | 24711492 | Dimitris Aragiorgis | def HotplugSupported(self, instance): |
2236 | 24711492 | Dimitris Aragiorgis | """Checks if hotplug is generally supported.
|
2237 | 24711492 | Dimitris Aragiorgis |
|
2238 | 24711492 | Dimitris Aragiorgis | Hotplug is *not* supported in case of:
|
2239 | 24711492 | Dimitris Aragiorgis | - qemu versions < 1.0
|
2240 | 24711492 | Dimitris Aragiorgis | - for stopped instances
|
2241 | 24711492 | Dimitris Aragiorgis |
|
2242 | 24711492 | Dimitris Aragiorgis | @raise errors.HypervisorError: in one of the previous cases
|
2243 | 24711492 | Dimitris Aragiorgis |
|
2244 | 24711492 | Dimitris Aragiorgis | """
|
2245 | 96ed3a3e | Dimitris Aragiorgis | try:
|
2246 | 96ed3a3e | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance.name, self._INFO_VERSION_CMD) |
2247 | 96ed3a3e | Dimitris Aragiorgis | except errors.HypervisorError:
|
2248 | 96ed3a3e | Dimitris Aragiorgis | raise errors.HotplugError("Instance is probably down") |
2249 | 96ed3a3e | Dimitris Aragiorgis | |
2250 | 24711492 | Dimitris Aragiorgis | # TODO: search for netdev_add, drive_add, device_add.....
|
2251 | 24711492 | Dimitris Aragiorgis | match = self._INFO_VERSION_RE.search(output.stdout)
|
2252 | 24711492 | Dimitris Aragiorgis | if not match: |
2253 | 96ed3a3e | Dimitris Aragiorgis | raise errors.HotplugError("Cannot parse qemu version via monitor") |
2254 | 96ed3a3e | Dimitris Aragiorgis | |
2255 | 24711492 | Dimitris Aragiorgis | v_major, v_min, _, _ = match.groups() |
2256 | 24711492 | Dimitris Aragiorgis | if (int(v_major), int(v_min)) < (1, 0): |
2257 | 24711492 | Dimitris Aragiorgis | raise errors.HotplugError("Hotplug not supported for qemu versions < 1.0") |
2258 | 24711492 | Dimitris Aragiorgis | |
2259 | 89c10241 | Dimitris Aragiorgis | def _CallHotplugCommands(self, name, cmds): |
2260 | 89c10241 | Dimitris Aragiorgis | for c in cmds: |
2261 | 066f16b0 | Dimitris Aragiorgis | self._CallMonitorCommand(name, c)
|
2262 | 89c10241 | Dimitris Aragiorgis | time.sleep(1)
|
2263 | 97cd9092 | Dimitris Aragiorgis | |
2264 | 066f16b0 | Dimitris Aragiorgis | def _VerifyHotplugCommand(self, instance_name, device, dev_type, |
2265 | 066f16b0 | Dimitris Aragiorgis | should_exist): |
2266 | 066f16b0 | Dimitris Aragiorgis | """Checks if a previous hotplug command has succeeded.
|
2267 | 066f16b0 | Dimitris Aragiorgis |
|
2268 | 066f16b0 | Dimitris Aragiorgis | It issues info pci monitor command and checks depending on should_exist
|
2269 | 066f16b0 | Dimitris Aragiorgis | value if an entry with PCI slot and device ID is found or not.
|
2270 | 066f16b0 | Dimitris Aragiorgis |
|
2271 | 066f16b0 | Dimitris Aragiorgis | @raise errors.HypervisorError: if result is not the expected one
|
2272 | 066f16b0 | Dimitris Aragiorgis |
|
2273 | 066f16b0 | Dimitris Aragiorgis | """
|
2274 | 066f16b0 | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance_name, self._INFO_PCI_CMD) |
2275 | 066f16b0 | Dimitris Aragiorgis | kvm_devid = _GenerateDeviceKVMId(dev_type, device) |
2276 | 066f16b0 | Dimitris Aragiorgis | match = \ |
2277 | 066f16b0 | Dimitris Aragiorgis | self._FIND_PCI_DEVICE_RE(device.pci, kvm_devid).search(output.stdout)
|
2278 | 066f16b0 | Dimitris Aragiorgis | if match and not should_exist: |
2279 | 066f16b0 | Dimitris Aragiorgis | msg = "Device %s should have been removed but is still there" % kvm_devid
|
2280 | 066f16b0 | Dimitris Aragiorgis | raise errors.HypervisorError(msg)
|
2281 | 066f16b0 | Dimitris Aragiorgis | |
2282 | 066f16b0 | Dimitris Aragiorgis | if not match and should_exist: |
2283 | 066f16b0 | Dimitris Aragiorgis | msg = "Device %s should have been added but is missing" % kvm_devid
|
2284 | 066f16b0 | Dimitris Aragiorgis | raise errors.HypervisorError(msg)
|
2285 | 066f16b0 | Dimitris Aragiorgis | |
2286 | 066f16b0 | Dimitris Aragiorgis | logging.info("Device %s has been correctly hot-plugged", kvm_devid)
|
2287 | 97cd9092 | Dimitris Aragiorgis | |
2288 | 4b82125b | Dimitris Aragiorgis | def HotAddDevice(self, instance, dev_type, device, extra, seq): |
2289 | 4b82125b | Dimitris Aragiorgis | """ Helper method to hot-add a new device
|
2290 | 4b82125b | Dimitris Aragiorgis |
|
2291 | 4b82125b | Dimitris Aragiorgis | It gets free pci slot generates the device name and invokes the
|
2292 | 4b82125b | Dimitris Aragiorgis | device specific method.
|
2293 | 4b82125b | Dimitris Aragiorgis |
|
2294 | 4b82125b | Dimitris Aragiorgis | """
|
2295 | 4b82125b | Dimitris Aragiorgis | # in case of hot-mod this is given
|
2296 | 4b82125b | Dimitris Aragiorgis | if device.pci is None: |
2297 | 4b82125b | Dimitris Aragiorgis | self._GetFreePCISlot(instance, device)
|
2298 | 4b82125b | Dimitris Aragiorgis | kvm_devid = _GenerateDeviceKVMId(dev_type, device) |
2299 | 4b82125b | Dimitris Aragiorgis | runtime = self._LoadKVMRuntime(instance)
|
2300 | 4b82125b | Dimitris Aragiorgis | if dev_type == constants.HOTPLUG_TARGET_DISK:
|
2301 | 89c10241 | Dimitris Aragiorgis | cmds = ["drive_add dummy file=%s,if=none,id=%s,format=raw" %
|
2302 | 89c10241 | Dimitris Aragiorgis | (extra, kvm_devid)] |
2303 | 89c10241 | Dimitris Aragiorgis | cmds += ["device_add virtio-blk-pci,bus=pci.0,addr=%s,drive=%s,id=%s" %
|
2304 | 89c10241 | Dimitris Aragiorgis | (hex(device.pci), kvm_devid, kvm_devid)]
|
2305 | 4b82125b | Dimitris Aragiorgis | elif dev_type == constants.HOTPLUG_TARGET_NIC:
|
2306 | 4b82125b | Dimitris Aragiorgis | (tap, fd) = _OpenTap() |
2307 | 4b82125b | Dimitris Aragiorgis | self._ConfigureNIC(instance, seq, device, tap)
|
2308 | 4b82125b | Dimitris Aragiorgis | self._PassTapFd(instance, fd, device)
|
2309 | 89c10241 | Dimitris Aragiorgis | cmds = ["netdev_add tap,id=%s,fd=%s" % (kvm_devid, kvm_devid)]
|
2310 | 4b82125b | Dimitris Aragiorgis | args = "virtio-net-pci,bus=pci.0,addr=%s,mac=%s,netdev=%s,id=%s" % \
|
2311 | 4b82125b | Dimitris Aragiorgis | (hex(device.pci), device.mac, kvm_devid, kvm_devid)
|
2312 | 89c10241 | Dimitris Aragiorgis | cmds += ["device_add %s" % args]
|
2313 | 4b82125b | Dimitris Aragiorgis | utils.WriteFile(self._InstanceNICFile(instance.name, seq), data=tap)
|
2314 | 4b82125b | Dimitris Aragiorgis | |
2315 | 89c10241 | Dimitris Aragiorgis | self._CallHotplugCommands(instance.name, cmds)
|
2316 | 066f16b0 | Dimitris Aragiorgis | self._VerifyHotplugCommand(instance.name, device, dev_type, True) |
2317 | 4b82125b | Dimitris Aragiorgis | # update relevant entries in runtime file
|
2318 | 4b82125b | Dimitris Aragiorgis | index = _DEVICE_RUNTIME_INDEX[dev_type] |
2319 | 4b82125b | Dimitris Aragiorgis | entry = _RUNTIME_ENTRY[dev_type](device, extra) |
2320 | 4b82125b | Dimitris Aragiorgis | runtime[index].append(entry) |
2321 | 4b82125b | Dimitris Aragiorgis | self._SaveKVMRuntime(instance, runtime)
|
2322 | 4b82125b | Dimitris Aragiorgis | |
2323 | 4b82125b | Dimitris Aragiorgis | def HotDelDevice(self, instance, dev_type, device, _, seq): |
2324 | 4b82125b | Dimitris Aragiorgis | """ Helper method for hot-del device
|
2325 | 4b82125b | Dimitris Aragiorgis |
|
2326 | 4b82125b | Dimitris Aragiorgis | It gets device info from runtime file, generates the device name and
|
2327 | 4b82125b | Dimitris Aragiorgis | invokes the device specific method.
|
2328 | 4b82125b | Dimitris Aragiorgis |
|
2329 | 4b82125b | Dimitris Aragiorgis | """
|
2330 | 4b82125b | Dimitris Aragiorgis | runtime = self._LoadKVMRuntime(instance)
|
2331 | 4b82125b | Dimitris Aragiorgis | entry = _GetExistingDeviceInfo(dev_type, device, runtime) |
2332 | 4b82125b | Dimitris Aragiorgis | kvm_device = _RUNTIME_DEVICE[dev_type](entry) |
2333 | 4b82125b | Dimitris Aragiorgis | kvm_devid = _GenerateDeviceKVMId(dev_type, kvm_device) |
2334 | 4b82125b | Dimitris Aragiorgis | if dev_type == constants.HOTPLUG_TARGET_DISK:
|
2335 | 89c10241 | Dimitris Aragiorgis | cmds = ["device_del %s" % kvm_devid]
|
2336 | 89c10241 | Dimitris Aragiorgis | cmds += ["drive_del %s" % kvm_devid]
|
2337 | 4b82125b | Dimitris Aragiorgis | elif dev_type == constants.HOTPLUG_TARGET_NIC:
|
2338 | 89c10241 | Dimitris Aragiorgis | cmds = ["device_del %s" % kvm_devid]
|
2339 | 89c10241 | Dimitris Aragiorgis | cmds += ["netdev_del %s" % kvm_devid]
|
2340 | 4b82125b | Dimitris Aragiorgis | utils.RemoveFile(self._InstanceNICFile(instance.name, seq))
|
2341 | 89c10241 | Dimitris Aragiorgis | self._CallHotplugCommands(instance.name, cmds)
|
2342 | 066f16b0 | Dimitris Aragiorgis | self._VerifyHotplugCommand(instance.name, kvm_device, dev_type, False) |
2343 | 4b82125b | Dimitris Aragiorgis | index = _DEVICE_RUNTIME_INDEX[dev_type] |
2344 | 4b82125b | Dimitris Aragiorgis | runtime[index].remove(entry) |
2345 | 4b82125b | Dimitris Aragiorgis | self._SaveKVMRuntime(instance, runtime)
|
2346 | 4b82125b | Dimitris Aragiorgis | |
2347 | 4b82125b | Dimitris Aragiorgis | return kvm_device.pci
|
2348 | 4b82125b | Dimitris Aragiorgis | |
2349 | 4b82125b | Dimitris Aragiorgis | def HotModDevice(self, instance, dev_type, device, _, seq): |
2350 | 4b82125b | Dimitris Aragiorgis | """ Helper method for hot-mod device
|
2351 | 4b82125b | Dimitris Aragiorgis |
|
2352 | 4b82125b | Dimitris Aragiorgis | It gets device info from runtime file, generates the device name and
|
2353 | 4b82125b | Dimitris Aragiorgis | invokes the device specific method. Currently only NICs support hot-mod
|
2354 | 4b82125b | Dimitris Aragiorgis |
|
2355 | 4b82125b | Dimitris Aragiorgis | """
|
2356 | 4b82125b | Dimitris Aragiorgis | if dev_type == constants.HOTPLUG_TARGET_NIC:
|
2357 | 4b82125b | Dimitris Aragiorgis | # putting it back in the same pci slot
|
2358 | 4b82125b | Dimitris Aragiorgis | device.pci = self.HotDelDevice(instance, dev_type, device, _, seq)
|
2359 | 4b82125b | Dimitris Aragiorgis | self.HotAddDevice(instance, dev_type, device, _, seq)
|
2360 | 4b82125b | Dimitris Aragiorgis | |
2361 | 4b82125b | Dimitris Aragiorgis | def _PassTapFd(self, instance, fd, nic): |
2362 | 4b82125b | Dimitris Aragiorgis | """Pass file descriptor to kvm process via monitor socket using SCM_RIGHTS
|
2363 | 4b82125b | Dimitris Aragiorgis |
|
2364 | 4b82125b | Dimitris Aragiorgis | """
|
2365 | 4b82125b | Dimitris Aragiorgis | # TODO: factor out code related to unix sockets.
|
2366 | 4b82125b | Dimitris Aragiorgis | # squash common parts between monitor and qmp
|
2367 | 4b82125b | Dimitris Aragiorgis | kvm_devid = _GenerateDeviceKVMId(constants.HOTPLUG_TARGET_NIC, nic) |
2368 | 4b82125b | Dimitris Aragiorgis | command = "getfd %s\n" % kvm_devid
|
2369 | 4b82125b | Dimitris Aragiorgis | fds = [fd] |
2370 | 4b82125b | Dimitris Aragiorgis | logging.info("%s", fds)
|
2371 | 4b82125b | Dimitris Aragiorgis | try:
|
2372 | 4b82125b | Dimitris Aragiorgis | monsock = MonitorSocket(self._InstanceMonitor(instance.name))
|
2373 | 4b82125b | Dimitris Aragiorgis | monsock.connect() |
2374 | 4b82125b | Dimitris Aragiorgis | fdsend.sendfds(monsock.sock, command, fds=fds) |
2375 | 4b82125b | Dimitris Aragiorgis | finally:
|
2376 | 4b82125b | Dimitris Aragiorgis | monsock.close() |
2377 | 4b82125b | Dimitris Aragiorgis | |
2378 | b52d85c1 | Guido Trotter | @classmethod
|
2379 | 585c8187 | Guido Trotter | def _ParseKVMVersion(cls, text): |
2380 | 585c8187 | Guido Trotter | """Parse the KVM version from the --help output.
|
2381 | 585c8187 | Guido Trotter |
|
2382 | 585c8187 | Guido Trotter | @type text: string
|
2383 | 585c8187 | Guido Trotter | @param text: output of kvm --help
|
2384 | 585c8187 | Guido Trotter | @return: (version, v_maj, v_min, v_rev)
|
2385 | 5c3d5dfd | Iustin Pop | @raise errors.HypervisorError: when the KVM version cannot be retrieved
|
2386 | 585c8187 | Guido Trotter |
|
2387 | 585c8187 | Guido Trotter | """
|
2388 | 585c8187 | Guido Trotter | match = cls._VERSION_RE.search(text.splitlines()[0])
|
2389 | 585c8187 | Guido Trotter | if not match: |
2390 | 585c8187 | Guido Trotter | raise errors.HypervisorError("Unable to get KVM version") |
2391 | 585c8187 | Guido Trotter | |
2392 | 585c8187 | Guido Trotter | v_all = match.group(0)
|
2393 | 585c8187 | Guido Trotter | v_maj = int(match.group(1)) |
2394 | 585c8187 | Guido Trotter | v_min = int(match.group(2)) |
2395 | 585c8187 | Guido Trotter | if match.group(4): |
2396 | 585c8187 | Guido Trotter | v_rev = int(match.group(4)) |
2397 | 585c8187 | Guido Trotter | else:
|
2398 | 585c8187 | Guido Trotter | v_rev = 0
|
2399 | 585c8187 | Guido Trotter | return (v_all, v_maj, v_min, v_rev)
|
2400 | 585c8187 | Guido Trotter | |
2401 | 585c8187 | Guido Trotter | @classmethod
|
2402 | 6e043e60 | Guido Trotter | def _GetKVMOutput(cls, kvm_path, option): |
2403 | 6e043e60 | Guido Trotter | """Return the output of a kvm invocation
|
2404 | e3b89628 | Guido Trotter |
|
2405 | bc0fed4b | Guido Trotter | @type kvm_path: string
|
2406 | bc0fed4b | Guido Trotter | @param kvm_path: path to the kvm executable
|
2407 | bc0fed4b | Guido Trotter | @type option: a key of _KVMOPTS_CMDS
|
2408 | bc0fed4b | Guido Trotter | @param option: kvm option to fetch the output from
|
2409 | 6e043e60 | Guido Trotter | @return: output a supported kvm invocation
|
2410 | e3b89628 | Guido Trotter | @raise errors.HypervisorError: when the KVM help output cannot be retrieved
|
2411 | e3b89628 | Guido Trotter |
|
2412 | e3b89628 | Guido Trotter | """
|
2413 | 6e043e60 | Guido Trotter | assert option in cls._KVMOPTS_CMDS, "Invalid output option" |
2414 | 6e043e60 | Guido Trotter | |
2415 | bc0fed4b | Guido Trotter | optlist, can_fail = cls._KVMOPTS_CMDS[option] |
2416 | bc0fed4b | Guido Trotter | |
2417 | bc0fed4b | Guido Trotter | result = utils.RunCmd([kvm_path] + optlist) |
2418 | bc0fed4b | Guido Trotter | if result.failed and not can_fail: |
2419 | af89fa76 | Helga Velroyen | raise errors.HypervisorError("Unable to get KVM %s output" % |
2420 | 3ddc7650 | Jose A. Lopes | " ".join(optlist))
|
2421 | e3b89628 | Guido Trotter | return result.output
|
2422 | e3b89628 | Guido Trotter | |
2423 | e3b89628 | Guido Trotter | @classmethod
|
2424 | 3b59ec02 | Guido Trotter | def _GetKVMVersion(cls, kvm_path): |
2425 | d7e4a2b1 | Andrea Spadaccini | """Return the installed KVM version.
|
2426 | b52d85c1 | Guido Trotter |
|
2427 | 440351f8 | Andrea Spadaccini | @return: (version, v_maj, v_min, v_rev)
|
2428 | 5c3d5dfd | Iustin Pop | @raise errors.HypervisorError: when the KVM version cannot be retrieved
|
2429 | b52d85c1 | Guido Trotter |
|
2430 | b52d85c1 | Guido Trotter | """
|
2431 | 6e043e60 | Guido Trotter | return cls._ParseKVMVersion(cls._GetKVMOutput(kvm_path, cls._KVMOPT_HELP))
|
2432 | 82e3bf85 | Dimitris Aragiorgis | |
2433 | 82e3bf85 | Dimitris Aragiorgis | @classmethod
|
2434 | 82e3bf85 | Dimitris Aragiorgis | def _GetDefaultMachineVersion(cls, kvm_path): |
2435 | 82e3bf85 | Dimitris Aragiorgis | """Return the default hardware revision (e.g. pc-1.1)
|
2436 | 82e3bf85 | Dimitris Aragiorgis |
|
2437 | 82e3bf85 | Dimitris Aragiorgis | """
|
2438 | 6e043e60 | Guido Trotter | output = cls._GetKVMOutput(kvm_path, cls._KVMOPT_MLIST) |
2439 | 82e3bf85 | Dimitris Aragiorgis | match = cls._DEFAULT_MACHINE_VERSION_RE.search(output) |
2440 | 82e3bf85 | Dimitris Aragiorgis | if match:
|
2441 | 82e3bf85 | Dimitris Aragiorgis | return match.group(1) |
2442 | 82e3bf85 | Dimitris Aragiorgis | else:
|
2443 | 82e3bf85 | Dimitris Aragiorgis | return "pc" |
2444 | 82e3bf85 | Dimitris Aragiorgis | |
2445 | 70f25a49 | Jose A. Lopes | @classmethod
|
2446 | 205d3309 | Klaus Aehlig | def _StopInstance(cls, instance, force=False, name=None, timeout=None): |
2447 | eb58f9b1 | Guido Trotter | """Stop an instance.
|
2448 | eb58f9b1 | Guido Trotter |
|
2449 | eb58f9b1 | Guido Trotter | """
|
2450 | 874f6148 | Michele Tartara | assert(timeout is None or force is not None) |
2451 | 874f6148 | Michele Tartara | |
2452 | bbcf7ad0 | Iustin Pop | if name is not None and not force: |
2453 | bbcf7ad0 | Iustin Pop | raise errors.HypervisorError("Cannot shutdown cleanly by name only") |
2454 | bbcf7ad0 | Iustin Pop | if name is None: |
2455 | bbcf7ad0 | Iustin Pop | name = instance.name |
2456 | bbcf7ad0 | Iustin Pop | acpi = instance.hvparams[constants.HV_ACPI] |
2457 | bbcf7ad0 | Iustin Pop | else:
|
2458 | bbcf7ad0 | Iustin Pop | acpi = False
|
2459 | 70f25a49 | Jose A. Lopes | _, pid, alive = cls._InstancePidAlive(name) |
2460 | 1f8b3a27 | Guido Trotter | if pid > 0 and alive: |
2461 | bbcf7ad0 | Iustin Pop | if force or not acpi: |
2462 | eb58f9b1 | Guido Trotter | utils.KillProcess(pid) |
2463 | eb58f9b1 | Guido Trotter | else:
|
2464 | 205d3309 | Klaus Aehlig | cls._CallMonitorCommand(name, "system_powerdown", timeout)
|
2465 | 95d70148 | Jose A. Lopes | cls._ClearUserShutdown(instance.name) |
2466 | 70f25a49 | Jose A. Lopes | |
2467 | 205d3309 | Klaus Aehlig | def StopInstance(self, instance, force=False, retry=False, name=None, |
2468 | 205d3309 | Klaus Aehlig | timeout=None):
|
2469 | 70f25a49 | Jose A. Lopes | """Stop an instance.
|
2470 | 70f25a49 | Jose A. Lopes |
|
2471 | 70f25a49 | Jose A. Lopes | """
|
2472 | 205d3309 | Klaus Aehlig | self._StopInstance(instance, force, name=name, timeout=timeout)
|
2473 | eb58f9b1 | Guido Trotter | |
2474 | 8904b35c | Guido Trotter | def CleanupInstance(self, instance_name): |
2475 | 8904b35c | Guido Trotter | """Cleanup after a stopped instance
|
2476 | 8904b35c | Guido Trotter |
|
2477 | 8904b35c | Guido Trotter | """
|
2478 | 8904b35c | Guido Trotter | pidfile, pid, alive = self._InstancePidAlive(instance_name)
|
2479 | 8904b35c | Guido Trotter | if pid > 0 and alive: |
2480 | 8904b35c | Guido Trotter | raise errors.HypervisorError("Cannot cleanup a live instance") |
2481 | 8904b35c | Guido Trotter | self._RemoveInstanceRuntimeFiles(pidfile, instance_name)
|
2482 | 95d70148 | Jose A. Lopes | self._ClearUserShutdown(instance_name)
|
2483 | eb58f9b1 | Guido Trotter | |
2484 | eb58f9b1 | Guido Trotter | def RebootInstance(self, instance): |
2485 | eb58f9b1 | Guido Trotter | """Reboot an instance.
|
2486 | eb58f9b1 | Guido Trotter |
|
2487 | eb58f9b1 | Guido Trotter | """
|
2488 | eb58f9b1 | Guido Trotter | # For some reason if we do a 'send-key ctrl-alt-delete' to the control
|
2489 | eb58f9b1 | Guido Trotter | # socket the instance will stop, but now power up again. So we'll resort
|
2490 | eb58f9b1 | Guido Trotter | # to shutdown and restart.
|
2491 | 1122eb25 | Iustin Pop | _, _, alive = self._InstancePidAlive(instance.name)
|
2492 | 1f8b3a27 | Guido Trotter | if not alive: |
2493 | 78411c60 | Iustin Pop | raise errors.HypervisorError("Failed to reboot instance %s:" |
2494 | 78411c60 | Iustin Pop | " not running" % instance.name)
|
2495 | f02881e0 | Guido Trotter | # StopInstance will delete the saved KVM runtime so:
|
2496 | f02881e0 | Guido Trotter | # ...first load it...
|
2497 | f02881e0 | Guido Trotter | kvm_runtime = self._LoadKVMRuntime(instance)
|
2498 | f02881e0 | Guido Trotter | # ...now we can safely call StopInstance...
|
2499 | f02881e0 | Guido Trotter | if not self.StopInstance(instance): |
2500 | f02881e0 | Guido Trotter | self.StopInstance(instance, force=True) |
2501 | f02881e0 | Guido Trotter | # ...and finally we can save it again, and execute it...
|
2502 | f02881e0 | Guido Trotter | self._SaveKVMRuntime(instance, kvm_runtime)
|
2503 | 4b9638dc | Guido Trotter | kvmpath = instance.hvparams[constants.HV_KVM_PATH] |
2504 | 6e043e60 | Guido Trotter | kvmhelp = self._GetKVMOutput(kvmpath, self._KVMOPT_HELP) |
2505 | b73f1c59 | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime, kvmhelp)
|
2506 | eb58f9b1 | Guido Trotter | |
2507 | 30e42c4e | Guido Trotter | def MigrationInfo(self, instance): |
2508 | 30e42c4e | Guido Trotter | """Get instance information to perform a migration.
|
2509 | 30e42c4e | Guido Trotter |
|
2510 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
2511 | 30e42c4e | Guido Trotter | @param instance: instance to be migrated
|
2512 | 30e42c4e | Guido Trotter | @rtype: string
|
2513 | 30e42c4e | Guido Trotter | @return: content of the KVM runtime file
|
2514 | 30e42c4e | Guido Trotter |
|
2515 | 30e42c4e | Guido Trotter | """
|
2516 | 30e42c4e | Guido Trotter | return self._ReadKVMRuntime(instance.name) |
2517 | 30e42c4e | Guido Trotter | |
2518 | 30e42c4e | Guido Trotter | def AcceptInstance(self, instance, info, target): |
2519 | 30e42c4e | Guido Trotter | """Prepare to accept an instance.
|
2520 | 30e42c4e | Guido Trotter |
|
2521 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
2522 | 30e42c4e | Guido Trotter | @param instance: instance to be accepted
|
2523 | 30e42c4e | Guido Trotter | @type info: string
|
2524 | 30e42c4e | Guido Trotter | @param info: content of the KVM runtime file on the source node
|
2525 | 30e42c4e | Guido Trotter | @type target: string
|
2526 | 30e42c4e | Guido Trotter | @param target: target host (usually ip), on this node
|
2527 | 30e42c4e | Guido Trotter |
|
2528 | 30e42c4e | Guido Trotter | """
|
2529 | 30e42c4e | Guido Trotter | kvm_runtime = self._LoadKVMRuntime(instance, serialized_runtime=info)
|
2530 | 641ae041 | Iustin Pop | incoming_address = (target, instance.hvparams[constants.HV_MIGRATION_PORT]) |
2531 | 4b9638dc | Guido Trotter | kvmpath = instance.hvparams[constants.HV_KVM_PATH] |
2532 | 6e043e60 | Guido Trotter | kvmhelp = self._GetKVMOutput(kvmpath, self._KVMOPT_HELP) |
2533 | b73f1c59 | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime, kvmhelp,
|
2534 | b73f1c59 | Guido Trotter | incoming=incoming_address) |
2535 | 30e42c4e | Guido Trotter | |
2536 | 6a1434d7 | Andrea Spadaccini | def FinalizeMigrationDst(self, instance, info, success): |
2537 | 6a1434d7 | Andrea Spadaccini | """Finalize the instance migration on the target node.
|
2538 | 30e42c4e | Guido Trotter |
|
2539 | 30e42c4e | Guido Trotter | Stop the incoming mode KVM.
|
2540 | 30e42c4e | Guido Trotter |
|
2541 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
2542 | fea922fa | Guido Trotter | @param instance: instance whose migration is being finalized
|
2543 | 30e42c4e | Guido Trotter |
|
2544 | 30e42c4e | Guido Trotter | """
|
2545 | 30e42c4e | Guido Trotter | if success:
|
2546 | 5d9bfd87 | Apollon Oikonomopoulos | kvm_runtime = self._LoadKVMRuntime(instance, serialized_runtime=info)
|
2547 | 5d9bfd87 | Apollon Oikonomopoulos | kvm_nics = kvm_runtime[1]
|
2548 | 5d9bfd87 | Apollon Oikonomopoulos | |
2549 | 5d9bfd87 | Apollon Oikonomopoulos | for nic_seq, nic in enumerate(kvm_nics): |
2550 | cc8a8ed7 | Apollon Oikonomopoulos | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
2551 | cc8a8ed7 | Apollon Oikonomopoulos | # Bridged interfaces have already been configured
|
2552 | cc8a8ed7 | Apollon Oikonomopoulos | continue
|
2553 | 5d9bfd87 | Apollon Oikonomopoulos | try:
|
2554 | 5d9bfd87 | Apollon Oikonomopoulos | tap = utils.ReadFile(self._InstanceNICFile(instance.name, nic_seq))
|
2555 | 5d9bfd87 | Apollon Oikonomopoulos | except EnvironmentError, err: |
2556 | 5d9bfd87 | Apollon Oikonomopoulos | logging.warning("Failed to find host interface for %s NIC #%d: %s",
|
2557 | 5d9bfd87 | Apollon Oikonomopoulos | instance.name, nic_seq, str(err))
|
2558 | 5d9bfd87 | Apollon Oikonomopoulos | continue
|
2559 | 5d9bfd87 | Apollon Oikonomopoulos | try:
|
2560 | 5d9bfd87 | Apollon Oikonomopoulos | self._ConfigureNIC(instance, nic_seq, nic, tap)
|
2561 | 5d9bfd87 | Apollon Oikonomopoulos | except errors.HypervisorError, err:
|
2562 | 5d9bfd87 | Apollon Oikonomopoulos | logging.warning(str(err))
|
2563 | 5d9bfd87 | Apollon Oikonomopoulos | |
2564 | 30e42c4e | Guido Trotter | self._WriteKVMRuntime(instance.name, info)
|
2565 | 30e42c4e | Guido Trotter | else:
|
2566 | 30e42c4e | Guido Trotter | self.StopInstance(instance, force=True) |
2567 | 30e42c4e | Guido Trotter | |
2568 | bc0a2284 | Helga Velroyen | def MigrateInstance(self, cluster_name, instance, target, live): |
2569 | 30e42c4e | Guido Trotter | """Migrate an instance to a target node.
|
2570 | 30e42c4e | Guido Trotter |
|
2571 | 30e42c4e | Guido Trotter | The migration will not be attempted if the instance is not
|
2572 | 30e42c4e | Guido Trotter | currently running.
|
2573 | 30e42c4e | Guido Trotter |
|
2574 | bc0a2284 | Helga Velroyen | @type cluster_name: string
|
2575 | bc0a2284 | Helga Velroyen | @param cluster_name: name of the cluster
|
2576 | 58d38b02 | Iustin Pop | @type instance: L{objects.Instance}
|
2577 | 58d38b02 | Iustin Pop | @param instance: the instance to be migrated
|
2578 | 30e42c4e | Guido Trotter | @type target: string
|
2579 | 30e42c4e | Guido Trotter | @param target: ip address of the target node
|
2580 | 30e42c4e | Guido Trotter | @type live: boolean
|
2581 | 30e42c4e | Guido Trotter | @param live: perform a live migration
|
2582 | 30e42c4e | Guido Trotter |
|
2583 | 30e42c4e | Guido Trotter | """
|
2584 | 58d38b02 | Iustin Pop | instance_name = instance.name |
2585 | 50716be0 | Iustin Pop | port = instance.hvparams[constants.HV_MIGRATION_PORT] |
2586 | 6a1434d7 | Andrea Spadaccini | _, _, alive = self._InstancePidAlive(instance_name)
|
2587 | 30e42c4e | Guido Trotter | if not alive: |
2588 | 30e42c4e | Guido Trotter | raise errors.HypervisorError("Instance not running, cannot migrate") |
2589 | 30e42c4e | Guido Trotter | |
2590 | 30e42c4e | Guido Trotter | if not live: |
2591 | d0c8c01d | Iustin Pop | self._CallMonitorCommand(instance_name, "stop") |
2592 | 30e42c4e | Guido Trotter | |
2593 | d0c8c01d | Iustin Pop | migrate_command = ("migrate_set_speed %dm" %
|
2594 | 5ae4945a | Iustin Pop | instance.hvparams[constants.HV_MIGRATION_BANDWIDTH]) |
2595 | e43d4f9f | Apollon Oikonomopoulos | self._CallMonitorCommand(instance_name, migrate_command)
|
2596 | e43d4f9f | Apollon Oikonomopoulos | |
2597 | d0c8c01d | Iustin Pop | migrate_command = ("migrate_set_downtime %dms" %
|
2598 | 5ae4945a | Iustin Pop | instance.hvparams[constants.HV_MIGRATION_DOWNTIME]) |
2599 | e43d4f9f | Apollon Oikonomopoulos | self._CallMonitorCommand(instance_name, migrate_command)
|
2600 | e43d4f9f | Apollon Oikonomopoulos | |
2601 | 937ff984 | Dimitris Aragiorgis | migration_caps = instance.hvparams[constants.HV_KVM_MIGRATION_CAPS] |
2602 | 937ff984 | Dimitris Aragiorgis | if migration_caps:
|
2603 | 937ff984 | Dimitris Aragiorgis | for c in migration_caps.split(_MIGRATION_CAPS_DELIM): |
2604 | 937ff984 | Dimitris Aragiorgis | migrate_command = ("migrate_set_capability %s on" % c)
|
2605 | 937ff984 | Dimitris Aragiorgis | self._CallMonitorCommand(instance_name, migrate_command)
|
2606 | 937ff984 | Dimitris Aragiorgis | |
2607 | d0c8c01d | Iustin Pop | migrate_command = "migrate -d tcp:%s:%s" % (target, port)
|
2608 | 30e42c4e | Guido Trotter | self._CallMonitorCommand(instance_name, migrate_command)
|
2609 | 30e42c4e | Guido Trotter | |
2610 | 6a1434d7 | Andrea Spadaccini | def FinalizeMigrationSource(self, instance, success, live): |
2611 | 6a1434d7 | Andrea Spadaccini | """Finalize the instance migration on the source node.
|
2612 | 6a1434d7 | Andrea Spadaccini |
|
2613 | 6a1434d7 | Andrea Spadaccini | @type instance: L{objects.Instance}
|
2614 | 6a1434d7 | Andrea Spadaccini | @param instance: the instance that was migrated
|
2615 | 6a1434d7 | Andrea Spadaccini | @type success: bool
|
2616 | 6a1434d7 | Andrea Spadaccini | @param success: whether the migration succeeded or not
|
2617 | 6a1434d7 | Andrea Spadaccini | @type live: bool
|
2618 | 6a1434d7 | Andrea Spadaccini | @param live: whether the user requested a live migration or not
|
2619 | 6a1434d7 | Andrea Spadaccini |
|
2620 | 6a1434d7 | Andrea Spadaccini | """
|
2621 | 6a1434d7 | Andrea Spadaccini | if success:
|
2622 | 6a1434d7 | Andrea Spadaccini | pidfile, pid, _ = self._InstancePidAlive(instance.name)
|
2623 | 6a1434d7 | Andrea Spadaccini | utils.KillProcess(pid) |
2624 | 6a1434d7 | Andrea Spadaccini | self._RemoveInstanceRuntimeFiles(pidfile, instance.name)
|
2625 | 6a1434d7 | Andrea Spadaccini | elif live:
|
2626 | 6a1434d7 | Andrea Spadaccini | self._CallMonitorCommand(instance.name, self._CONT_CMD) |
2627 | 95d70148 | Jose A. Lopes | self._ClearUserShutdown(instance.name)
|
2628 | 6a1434d7 | Andrea Spadaccini | |
2629 | 6a1434d7 | Andrea Spadaccini | def GetMigrationStatus(self, instance): |
2630 | 6a1434d7 | Andrea Spadaccini | """Get the migration status
|
2631 | 6a1434d7 | Andrea Spadaccini |
|
2632 | 6a1434d7 | Andrea Spadaccini | @type instance: L{objects.Instance}
|
2633 | 6a1434d7 | Andrea Spadaccini | @param instance: the instance that is being migrated
|
2634 | 6a1434d7 | Andrea Spadaccini | @rtype: L{objects.MigrationStatus}
|
2635 | 6a1434d7 | Andrea Spadaccini | @return: the status of the current migration (one of
|
2636 | 6a1434d7 | Andrea Spadaccini | L{constants.HV_MIGRATION_VALID_STATUSES}), plus any additional
|
2637 | 6a1434d7 | Andrea Spadaccini | progress info that can be retrieved from the hypervisor
|
2638 | 6a1434d7 | Andrea Spadaccini |
|
2639 | 6a1434d7 | Andrea Spadaccini | """
|
2640 | d0c8c01d | Iustin Pop | info_command = "info migrate"
|
2641 | 6a1434d7 | Andrea Spadaccini | for _ in range(self._MIGRATION_INFO_MAX_BAD_ANSWERS): |
2642 | 6a1434d7 | Andrea Spadaccini | result = self._CallMonitorCommand(instance.name, info_command)
|
2643 | 30e42c4e | Guido Trotter | match = self._MIGRATION_STATUS_RE.search(result.stdout)
|
2644 | 30e42c4e | Guido Trotter | if not match: |
2645 | c4e388a5 | Guido Trotter | if not result.stdout: |
2646 | c4e388a5 | Guido Trotter | logging.info("KVM: empty 'info migrate' result")
|
2647 | c4e388a5 | Guido Trotter | else:
|
2648 | e4dd2299 | Guido Trotter | logging.warning("KVM: unknown 'info migrate' result: %s",
|
2649 | c4e388a5 | Guido Trotter | result.stdout) |
2650 | 30e42c4e | Guido Trotter | else:
|
2651 | 30e42c4e | Guido Trotter | status = match.group(1)
|
2652 | 6a1434d7 | Andrea Spadaccini | if status in constants.HV_KVM_MIGRATION_VALID_STATUSES: |
2653 | 6a1434d7 | Andrea Spadaccini | migration_status = objects.MigrationStatus(status=status) |
2654 | 61643226 | Andrea Spadaccini | match = self._MIGRATION_PROGRESS_RE.search(result.stdout)
|
2655 | 61643226 | Andrea Spadaccini | if match:
|
2656 | 61643226 | Andrea Spadaccini | migration_status.transferred_ram = match.group("transferred")
|
2657 | 61643226 | Andrea Spadaccini | migration_status.total_ram = match.group("total")
|
2658 | 61643226 | Andrea Spadaccini | |
2659 | 6a1434d7 | Andrea Spadaccini | return migration_status
|
2660 | 30e42c4e | Guido Trotter | |
2661 | 6a1434d7 | Andrea Spadaccini | logging.warning("KVM: unknown migration status '%s'", status)
|
2662 | 6a1434d7 | Andrea Spadaccini | |
2663 | 6a1434d7 | Andrea Spadaccini | time.sleep(self._MIGRATION_INFO_RETRY_DELAY)
|
2664 | 6a1434d7 | Andrea Spadaccini | |
2665 | 62457f51 | Iustin Pop | return objects.MigrationStatus(status=constants.HV_MIGRATION_FAILED)
|
2666 | 30e42c4e | Guido Trotter | |
2667 | 3d836750 | Guido Trotter | def BalloonInstanceMemory(self, instance, mem): |
2668 | 3d836750 | Guido Trotter | """Balloon an instance memory to a certain value.
|
2669 | 3d836750 | Guido Trotter |
|
2670 | 3d836750 | Guido Trotter | @type instance: L{objects.Instance}
|
2671 | 3d836750 | Guido Trotter | @param instance: instance to be accepted
|
2672 | 3d836750 | Guido Trotter | @type mem: int
|
2673 | 3d836750 | Guido Trotter | @param mem: actual memory size to use for instance runtime
|
2674 | 3d836750 | Guido Trotter |
|
2675 | 3d836750 | Guido Trotter | """
|
2676 | 3d836750 | Guido Trotter | self._CallMonitorCommand(instance.name, "balloon %d" % mem) |
2677 | 3d836750 | Guido Trotter | |
2678 | fac489a5 | Helga Velroyen | def GetNodeInfo(self, hvparams=None): |
2679 | eb58f9b1 | Guido Trotter | """Return information about the node.
|
2680 | eb58f9b1 | Guido Trotter |
|
2681 | fac489a5 | Helga Velroyen | @type hvparams: dict of strings
|
2682 | fac489a5 | Helga Velroyen | @param hvparams: hypervisor parameters, not used in this class
|
2683 | fac489a5 | Helga Velroyen |
|
2684 | ef14e128 | Bernardo Dal Seno | @return: a dict as returned by L{BaseHypervisor.GetLinuxNodeInfo} plus
|
2685 | ef14e128 | Bernardo Dal Seno | the following keys:
|
2686 | 34fbc862 | Andrea Spadaccini | - hv_version: the hypervisor version in the form (major, minor,
|
2687 | 34fbc862 | Andrea Spadaccini | revision)
|
2688 | eb58f9b1 | Guido Trotter |
|
2689 | eb58f9b1 | Guido Trotter | """
|
2690 | 34fbc862 | Andrea Spadaccini | result = self.GetLinuxNodeInfo()
|
2691 | 25bce647 | Santi Raffa | kvmpath = constants.KVM_PATH |
2692 | 25bce647 | Santi Raffa | if hvparams is not None: |
2693 | 25bce647 | Santi Raffa | kvmpath = hvparams.get(constants.HV_KVM_PATH, constants.KVM_PATH) |
2694 | 25bce647 | Santi Raffa | _, v_major, v_min, v_rev = self._GetKVMVersion(kvmpath)
|
2695 | 34fbc862 | Andrea Spadaccini | result[constants.HV_NODEINFO_KEY_VERSION] = (v_major, v_min, v_rev) |
2696 | 34fbc862 | Andrea Spadaccini | return result
|
2697 | eb58f9b1 | Guido Trotter | |
2698 | 637ce7f9 | Guido Trotter | @classmethod
|
2699 | c42be2c0 | Petr Pudlak | def GetInstanceConsole(cls, instance, primary_node, node_group, |
2700 | c42be2c0 | Petr Pudlak | hvparams, beparams): |
2701 | eb58f9b1 | Guido Trotter | """Return a command for connecting to the console of an instance.
|
2702 | eb58f9b1 | Guido Trotter |
|
2703 | eb58f9b1 | Guido Trotter | """
|
2704 | a2faf9ee | Guido Trotter | if hvparams[constants.HV_SERIAL_CONSOLE]:
|
2705 | 9d9bded1 | Michael Hanselmann | cmd = [pathutils.KVM_CONSOLE_WRAPPER, |
2706 | 2f4c951e | Stephen Shirley | constants.SOCAT_PATH, utils.ShellQuote(instance.name), |
2707 | 2f4c951e | Stephen Shirley | utils.ShellQuote(cls._InstanceMonitor(instance.name)), |
2708 | 55cc0a44 | Michael Hanselmann | "STDIO,%s" % cls._SocatUnixConsoleParams(),
|
2709 | 55cc0a44 | Michael Hanselmann | "UNIX-CONNECT:%s" % cls._InstanceSerial(instance.name)]
|
2710 | c42be2c0 | Petr Pudlak | ndparams = node_group.FillND(primary_node) |
2711 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
2712 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_SSH, |
2713 | 1c3231aa | Thomas Thrainer | host=primary_node.name, |
2714 | c42be2c0 | Petr Pudlak | port=ndparams.get(constants.ND_SSH_PORT), |
2715 | 052783ff | Michael Hanselmann | user=constants.SSH_CONSOLE_USER, |
2716 | 55cc0a44 | Michael Hanselmann | command=cmd) |
2717 | 3be34f57 | Guido Trotter | |
2718 | 3be34f57 | Guido Trotter | vnc_bind_address = hvparams[constants.HV_VNC_BIND_ADDRESS] |
2719 | 55cc0a44 | Michael Hanselmann | if vnc_bind_address and instance.network_port > constants.VNC_BASE_PORT: |
2720 | 55cc0a44 | Michael Hanselmann | display = instance.network_port - constants.VNC_BASE_PORT |
2721 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
2722 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_VNC, |
2723 | 55cc0a44 | Michael Hanselmann | host=vnc_bind_address, |
2724 | 55cc0a44 | Michael Hanselmann | port=instance.network_port, |
2725 | 55cc0a44 | Michael Hanselmann | display=display) |
2726 | 55cc0a44 | Michael Hanselmann | |
2727 | 4d2cdb5a | Andrea Spadaccini | spice_bind = hvparams[constants.HV_KVM_SPICE_BIND] |
2728 | 4d2cdb5a | Andrea Spadaccini | if spice_bind:
|
2729 | 4d2cdb5a | Andrea Spadaccini | return objects.InstanceConsole(instance=instance.name,
|
2730 | 4d2cdb5a | Andrea Spadaccini | kind=constants.CONS_SPICE, |
2731 | 4d2cdb5a | Andrea Spadaccini | host=spice_bind, |
2732 | 4d2cdb5a | Andrea Spadaccini | port=instance.network_port) |
2733 | 4d2cdb5a | Andrea Spadaccini | |
2734 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
2735 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_MESSAGE, |
2736 | 55cc0a44 | Michael Hanselmann | message=("No serial shell for instance %s" %
|
2737 | 55cc0a44 | Michael Hanselmann | instance.name)) |
2738 | eb58f9b1 | Guido Trotter | |
2739 | 75bf3149 | Helga Velroyen | def Verify(self, hvparams=None): |
2740 | eb58f9b1 | Guido Trotter | """Verify the hypervisor.
|
2741 | eb58f9b1 | Guido Trotter |
|
2742 | cd04dfd2 | Michael Hanselmann | Check that the required binaries exist.
|
2743 | cd04dfd2 | Michael Hanselmann |
|
2744 | 75bf3149 | Helga Velroyen | @type hvparams: dict of strings
|
2745 | 75bf3149 | Helga Velroyen | @param hvparams: hypervisor parameters to be verified against, not used here
|
2746 | 75bf3149 | Helga Velroyen |
|
2747 | cd04dfd2 | Michael Hanselmann | @return: Problem description if something is wrong, C{None} otherwise
|
2748 | eb58f9b1 | Guido Trotter |
|
2749 | eb58f9b1 | Guido Trotter | """
|
2750 | 1f4b9d39 | Iustin Pop | msgs = [] |
2751 | 25bce647 | Santi Raffa | kvmpath = constants.KVM_PATH |
2752 | 25bce647 | Santi Raffa | if hvparams is not None: |
2753 | 25bce647 | Santi Raffa | kvmpath = hvparams.get(constants.HV_KVM_PATH, constants.KVM_PATH) |
2754 | 25bce647 | Santi Raffa | if not os.path.exists(kvmpath): |
2755 | 25bce647 | Santi Raffa | msgs.append("The KVM binary ('%s') does not exist" % kvmpath)
|
2756 | 14aa53cb | Guido Trotter | if not os.path.exists(constants.SOCAT_PATH): |
2757 | 1f4b9d39 | Iustin Pop | msgs.append("The socat binary ('%s') does not exist" %
|
2758 | 1f4b9d39 | Iustin Pop | constants.SOCAT_PATH) |
2759 | 1f4b9d39 | Iustin Pop | |
2760 | 1f4b9d39 | Iustin Pop | return self._FormatVerifyResults(msgs) |
2761 | 14aa53cb | Guido Trotter | |
2762 | 6b5605e8 | Iustin Pop | @classmethod
|
2763 | 6b5605e8 | Iustin Pop | def CheckParameterSyntax(cls, hvparams): |
2764 | 6b5605e8 | Iustin Pop | """Check the given parameters for validity.
|
2765 | 6b5605e8 | Iustin Pop |
|
2766 | 6b5605e8 | Iustin Pop | @type hvparams: dict
|
2767 | 6b5605e8 | Iustin Pop | @param hvparams: dictionary with parameter names/value
|
2768 | 6b5605e8 | Iustin Pop | @raise errors.HypervisorError: when a parameter is not valid
|
2769 | 6b5605e8 | Iustin Pop |
|
2770 | 6b5605e8 | Iustin Pop | """
|
2771 | 47387b1e | Guido Trotter | super(KVMHypervisor, cls).CheckParameterSyntax(hvparams)
|
2772 | 6b5605e8 | Iustin Pop | |
2773 | df5ab9f0 | Guido Trotter | kernel_path = hvparams[constants.HV_KERNEL_PATH] |
2774 | df5ab9f0 | Guido Trotter | if kernel_path:
|
2775 | df5ab9f0 | Guido Trotter | if not hvparams[constants.HV_ROOT_PATH]: |
2776 | 205ab586 | Iustin Pop | raise errors.HypervisorError("Need a root partition for the instance," |
2777 | 205ab586 | Iustin Pop | " if a kernel is defined")
|
2778 | 6b5605e8 | Iustin Pop | |
2779 | 205ab586 | Iustin Pop | if (hvparams[constants.HV_VNC_X509_VERIFY] and |
2780 | 205ab586 | Iustin Pop | not hvparams[constants.HV_VNC_X509]):
|
2781 | 205ab586 | Iustin Pop | raise errors.HypervisorError("%s must be defined, if %s is" % |
2782 | 205ab586 | Iustin Pop | (constants.HV_VNC_X509, |
2783 | 205ab586 | Iustin Pop | constants.HV_VNC_X509_VERIFY)) |
2784 | 66d5dbef | Guido Trotter | |
2785 | 14fd6c81 | Guido Trotter | if hvparams[constants.HV_SERIAL_CONSOLE]:
|
2786 | 14fd6c81 | Guido Trotter | serial_speed = hvparams[constants.HV_SERIAL_SPEED] |
2787 | 14fd6c81 | Guido Trotter | valid_speeds = constants.VALID_SERIAL_SPEEDS |
2788 | 14fd6c81 | Guido Trotter | if not serial_speed or serial_speed not in valid_speeds: |
2789 | 14fd6c81 | Guido Trotter | raise errors.HypervisorError("Invalid serial console speed, must be" |
2790 | 14fd6c81 | Guido Trotter | " one of: %s" %
|
2791 | 14fd6c81 | Guido Trotter | utils.CommaJoin(valid_speeds)) |
2792 | 14fd6c81 | Guido Trotter | |
2793 | 66d5dbef | Guido Trotter | boot_order = hvparams[constants.HV_BOOT_ORDER] |
2794 | 205ab586 | Iustin Pop | if (boot_order == constants.HT_BO_CDROM and |
2795 | 205ab586 | Iustin Pop | not hvparams[constants.HV_CDROM_IMAGE_PATH]):
|
2796 | 835528af | Iustin Pop | raise errors.HypervisorError("Cannot boot from cdrom without an" |
2797 | 835528af | Iustin Pop | " ISO path")
|
2798 | f5118ade | Iustin Pop | |
2799 | d19d94db | Guido Trotter | security_model = hvparams[constants.HV_SECURITY_MODEL] |
2800 | d19d94db | Guido Trotter | if security_model == constants.HT_SM_USER:
|
2801 | d19d94db | Guido Trotter | if not hvparams[constants.HV_SECURITY_DOMAIN]: |
2802 | d19d94db | Guido Trotter | raise errors.HypervisorError("A security domain (user to run kvm as)" |
2803 | d19d94db | Guido Trotter | " must be specified")
|
2804 | d19d94db | Guido Trotter | elif (security_model == constants.HT_SM_NONE or |
2805 | d19d94db | Guido Trotter | security_model == constants.HT_SM_POOL): |
2806 | d19d94db | Guido Trotter | if hvparams[constants.HV_SECURITY_DOMAIN]:
|
2807 | d19d94db | Guido Trotter | raise errors.HypervisorError("Cannot have a security domain when the" |
2808 | d19d94db | Guido Trotter | " security model is 'none' or 'pool'")
|
2809 | d19d94db | Guido Trotter | |
2810 | b1cb62bd | Andrea Spadaccini | spice_bind = hvparams[constants.HV_KVM_SPICE_BIND] |
2811 | b451c4c7 | Andrea Spadaccini | spice_ip_version = hvparams[constants.HV_KVM_SPICE_IP_VERSION] |
2812 | b1cb62bd | Andrea Spadaccini | if spice_bind:
|
2813 | b1cb62bd | Andrea Spadaccini | if spice_ip_version != constants.IFACE_NO_IP_VERSION_SPECIFIED:
|
2814 | b1cb62bd | Andrea Spadaccini | # if an IP version is specified, the spice_bind parameter must be an
|
2815 | b1cb62bd | Andrea Spadaccini | # IP of that family
|
2816 | b1cb62bd | Andrea Spadaccini | if (netutils.IP4Address.IsValid(spice_bind) and |
2817 | b1cb62bd | Andrea Spadaccini | spice_ip_version != constants.IP4_VERSION): |
2818 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("SPICE: Got an IPv4 address (%s), but" |
2819 | b1cb62bd | Andrea Spadaccini | " the specified IP version is %s" %
|
2820 | b1cb62bd | Andrea Spadaccini | (spice_bind, spice_ip_version)) |
2821 | b1cb62bd | Andrea Spadaccini | |
2822 | b1cb62bd | Andrea Spadaccini | if (netutils.IP6Address.IsValid(spice_bind) and |
2823 | b1cb62bd | Andrea Spadaccini | spice_ip_version != constants.IP6_VERSION): |
2824 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("SPICE: Got an IPv6 address (%s), but" |
2825 | b1cb62bd | Andrea Spadaccini | " the specified IP version is %s" %
|
2826 | b1cb62bd | Andrea Spadaccini | (spice_bind, spice_ip_version)) |
2827 | b451c4c7 | Andrea Spadaccini | else:
|
2828 | 0e1b03b9 | Andrea Spadaccini | # All the other SPICE parameters depend on spice_bind being set. Raise an
|
2829 | 0e1b03b9 | Andrea Spadaccini | # error if any of them is set without it.
|
2830 | 07788a0b | Michael Hanselmann | for param in _SPICE_ADDITIONAL_PARAMS: |
2831 | 0e1b03b9 | Andrea Spadaccini | if hvparams[param]:
|
2832 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("SPICE: %s requires %s to be set" % |
2833 | 0e1b03b9 | Andrea Spadaccini | (param, constants.HV_KVM_SPICE_BIND)) |
2834 | b1cb62bd | Andrea Spadaccini | |
2835 | d19d94db | Guido Trotter | @classmethod
|
2836 | d19d94db | Guido Trotter | def ValidateParameters(cls, hvparams): |
2837 | d19d94db | Guido Trotter | """Check the given parameters for validity.
|
2838 | d19d94db | Guido Trotter |
|
2839 | d19d94db | Guido Trotter | @type hvparams: dict
|
2840 | d19d94db | Guido Trotter | @param hvparams: dictionary with parameter names/value
|
2841 | d19d94db | Guido Trotter | @raise errors.HypervisorError: when a parameter is not valid
|
2842 | d19d94db | Guido Trotter |
|
2843 | d19d94db | Guido Trotter | """
|
2844 | d19d94db | Guido Trotter | super(KVMHypervisor, cls).ValidateParameters(hvparams)
|
2845 | d19d94db | Guido Trotter | |
2846 | 82e3bf85 | Dimitris Aragiorgis | kvm_path = hvparams[constants.HV_KVM_PATH] |
2847 | 82e3bf85 | Dimitris Aragiorgis | |
2848 | d19d94db | Guido Trotter | security_model = hvparams[constants.HV_SECURITY_MODEL] |
2849 | d19d94db | Guido Trotter | if security_model == constants.HT_SM_USER:
|
2850 | d19d94db | Guido Trotter | username = hvparams[constants.HV_SECURITY_DOMAIN] |
2851 | d19d94db | Guido Trotter | try:
|
2852 | 1feb39ec | Guido Trotter | pwd.getpwnam(username) |
2853 | d19d94db | Guido Trotter | except KeyError: |
2854 | d19d94db | Guido Trotter | raise errors.HypervisorError("Unknown security domain user %s" |
2855 | d19d94db | Guido Trotter | % username) |
2856 | d6e5767e | Klaus Aehlig | vnc_bind_address = hvparams[constants.HV_VNC_BIND_ADDRESS] |
2857 | d6e5767e | Klaus Aehlig | if vnc_bind_address:
|
2858 | d6e5767e | Klaus Aehlig | bound_to_addr = netutils.IP4Address.IsValid(vnc_bind_address) |
2859 | d6e5767e | Klaus Aehlig | is_interface = netutils.IsValidInterface(vnc_bind_address) |
2860 | d6e5767e | Klaus Aehlig | is_path = utils.IsNormAbsPath(vnc_bind_address) |
2861 | d6e5767e | Klaus Aehlig | if not bound_to_addr and not is_interface and not is_path: |
2862 | d6e5767e | Klaus Aehlig | raise errors.HypervisorError("VNC: The %s parameter must be either" |
2863 | d6e5767e | Klaus Aehlig | " a valid IP address, an interface name,"
|
2864 | d6e5767e | Klaus Aehlig | " or an absolute path" %
|
2865 | d6e5767e | Klaus Aehlig | constants.HV_KVM_SPICE_BIND) |
2866 | d19d94db | Guido Trotter | |
2867 | b1cb62bd | Andrea Spadaccini | spice_bind = hvparams[constants.HV_KVM_SPICE_BIND] |
2868 | b1cb62bd | Andrea Spadaccini | if spice_bind:
|
2869 | b1cb62bd | Andrea Spadaccini | # only one of VNC and SPICE can be used currently.
|
2870 | b1cb62bd | Andrea Spadaccini | if hvparams[constants.HV_VNC_BIND_ADDRESS]:
|
2871 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("Both SPICE and VNC are configured, but" |
2872 | b1cb62bd | Andrea Spadaccini | " only one of them can be used at a"
|
2873 | afa9bb2e | Michael Hanselmann | " given time")
|
2874 | b1cb62bd | Andrea Spadaccini | |
2875 | 3b59ec02 | Guido Trotter | # check that KVM supports SPICE
|
2876 | 6e043e60 | Guido Trotter | kvmhelp = cls._GetKVMOutput(kvm_path, cls._KVMOPT_HELP) |
2877 | 0ad7f5d8 | Guido Trotter | if not cls._SPICE_RE.search(kvmhelp): |
2878 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("SPICE is configured, but it is not" |
2879 | afa9bb2e | Michael Hanselmann | " supported according to 'kvm --help'")
|
2880 | b1cb62bd | Andrea Spadaccini | |
2881 | b1cb62bd | Andrea Spadaccini | # if spice_bind is not an IP address, it must be a valid interface
|
2882 | afa9bb2e | Michael Hanselmann | bound_to_addr = (netutils.IP4Address.IsValid(spice_bind) or
|
2883 | afa9bb2e | Michael Hanselmann | netutils.IP6Address.IsValid(spice_bind)) |
2884 | b1cb62bd | Andrea Spadaccini | if not bound_to_addr and not netutils.IsValidInterface(spice_bind): |
2885 | afa9bb2e | Michael Hanselmann | raise errors.HypervisorError("SPICE: The %s parameter must be either" |
2886 | b1cb62bd | Andrea Spadaccini | " a valid IP address or interface name" %
|
2887 | b1cb62bd | Andrea Spadaccini | constants.HV_KVM_SPICE_BIND) |
2888 | b1cb62bd | Andrea Spadaccini | |
2889 | 82e3bf85 | Dimitris Aragiorgis | machine_version = hvparams[constants.HV_KVM_MACHINE_VERSION] |
2890 | 82e3bf85 | Dimitris Aragiorgis | if machine_version:
|
2891 | 6e043e60 | Guido Trotter | output = cls._GetKVMOutput(kvm_path, cls._KVMOPT_MLIST) |
2892 | 82e3bf85 | Dimitris Aragiorgis | if not cls._CHECK_MACHINE_VERSION_RE(machine_version).search(output): |
2893 | 82e3bf85 | Dimitris Aragiorgis | raise errors.HypervisorError("Unsupported machine version: %s" % |
2894 | 82e3bf85 | Dimitris Aragiorgis | machine_version) |
2895 | 82e3bf85 | Dimitris Aragiorgis | |
2896 | f5118ade | Iustin Pop | @classmethod
|
2897 | 8ef418bb | Helga Velroyen | def PowercycleNode(cls, hvparams=None): |
2898 | f5118ade | Iustin Pop | """KVM powercycle, just a wrapper over Linux powercycle.
|
2899 | f5118ade | Iustin Pop |
|
2900 | 8ef418bb | Helga Velroyen | @type hvparams: dict of strings
|
2901 | 8ef418bb | Helga Velroyen | @param hvparams: hypervisor params to be used on this node
|
2902 | 8ef418bb | Helga Velroyen |
|
2903 | f5118ade | Iustin Pop | """
|
2904 | f5118ade | Iustin Pop | cls.LinuxPowercycle() |