root / lib / hypervisor / hv_kvm.py @ 95a74ef3
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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 | 2911f46c | Iustin Pop | # Copyright (C) 2008, 2009, 2010, 2011, 2012 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 | 91c10532 | Andrea Spadaccini | import socket |
38 | fc84cd5d | Guido Trotter | import stat |
39 | 91c10532 | Andrea Spadaccini | import StringIO |
40 | 1642a1d0 | Dimitris Aragiorgis | import fdsend |
41 | 2435f63b | 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 | eb58f9b1 | Guido Trotter | |
47 | eb58f9b1 | Guido Trotter | from ganeti import utils |
48 | eb58f9b1 | Guido Trotter | from ganeti import constants |
49 | eb58f9b1 | Guido Trotter | from ganeti import errors |
50 | 38e250ba | Guido Trotter | from ganeti import serializer |
51 | 38e250ba | Guido Trotter | from ganeti import objects |
52 | 76431533 | Guido Trotter | from ganeti import uidpool |
53 | 76431533 | Guido Trotter | from ganeti import ssconf |
54 | eb58f9b1 | Guido Trotter | from ganeti.hypervisor import hv_base |
55 | a744b676 | Manuel Franceschini | from ganeti import netutils |
56 | 5d9bfd87 | Apollon Oikonomopoulos | from ganeti.utils import wrapper as utils_wrapper |
57 | eb58f9b1 | Guido Trotter | |
58 | eb58f9b1 | Guido Trotter | |
59 | 748e4b5a | Michael Hanselmann | _KVM_NETWORK_SCRIPT = constants.SYSCONFDIR + "/ganeti/kvm-vif-bridge"
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60 | b693125f | Tsachy Shacham | _KVM_START_PAUSED_FLAG = "-S"
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61 | 748e4b5a | Michael Hanselmann | |
62 | 199b2053 | Apollon Oikonomopoulos | # TUN/TAP driver constants, taken from <linux/if_tun.h>
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63 | 199b2053 | Apollon Oikonomopoulos | # They are architecture-independent and already hardcoded in qemu-kvm source,
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64 | 199b2053 | Apollon Oikonomopoulos | # so we can safely include them here.
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65 | 199b2053 | Apollon Oikonomopoulos | TUNSETIFF = 0x400454ca
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66 | 199b2053 | Apollon Oikonomopoulos | TUNGETIFF = 0x800454d2
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67 | 199b2053 | Apollon Oikonomopoulos | TUNGETFEATURES = 0x800454cf
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68 | 199b2053 | Apollon Oikonomopoulos | IFF_TAP = 0x0002
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69 | 199b2053 | Apollon Oikonomopoulos | IFF_NO_PI = 0x1000
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70 | 199b2053 | Apollon Oikonomopoulos | IFF_VNET_HDR = 0x4000
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71 | 199b2053 | Apollon Oikonomopoulos | |
72 | 2435f63b | Dimitris Aragiorgis | FREE = bitarray("0")
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73 | 199b2053 | Apollon Oikonomopoulos | |
74 | 199b2053 | Apollon Oikonomopoulos | def _ProbeTapVnetHdr(fd): |
75 | 199b2053 | Apollon Oikonomopoulos | """Check whether to enable the IFF_VNET_HDR flag.
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76 | 199b2053 | Apollon Oikonomopoulos |
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77 | 199b2053 | Apollon Oikonomopoulos | To do this, _all_ of the following conditions must be met:
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78 | 199b2053 | Apollon Oikonomopoulos | 1. TUNGETFEATURES ioctl() *must* be implemented
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79 | 199b2053 | Apollon Oikonomopoulos | 2. TUNGETFEATURES ioctl() result *must* contain the IFF_VNET_HDR flag
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80 | 199b2053 | Apollon Oikonomopoulos | 3. TUNGETIFF ioctl() *must* be implemented; reading the kernel code in
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81 | 199b2053 | Apollon Oikonomopoulos | drivers/net/tun.c there is no way to test this until after the tap device
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82 | 199b2053 | Apollon Oikonomopoulos | has been created using TUNSETIFF, and there is no way to change the
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83 | 199b2053 | Apollon Oikonomopoulos | IFF_VNET_HDR flag after creating the interface, catch-22! However both
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84 | 199b2053 | Apollon Oikonomopoulos | TUNGETIFF and TUNGETFEATURES were introduced in kernel version 2.6.27,
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85 | 199b2053 | Apollon Oikonomopoulos | thus we can expect TUNGETIFF to be present if TUNGETFEATURES is.
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86 | 199b2053 | Apollon Oikonomopoulos |
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87 | 199b2053 | Apollon Oikonomopoulos | @type fd: int
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88 | 199b2053 | Apollon Oikonomopoulos | @param fd: the file descriptor of /dev/net/tun
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89 | 199b2053 | Apollon Oikonomopoulos |
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90 | 199b2053 | Apollon Oikonomopoulos | """
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91 | 199b2053 | Apollon Oikonomopoulos | req = struct.pack("I", 0) |
92 | 199b2053 | Apollon Oikonomopoulos | try:
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93 | 199b2053 | Apollon Oikonomopoulos | res = fcntl.ioctl(fd, TUNGETFEATURES, req) |
94 | 199b2053 | Apollon Oikonomopoulos | except EnvironmentError: |
95 | 199b2053 | Apollon Oikonomopoulos | logging.warning("TUNGETFEATURES ioctl() not implemented")
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96 | 199b2053 | Apollon Oikonomopoulos | return False |
97 | 199b2053 | Apollon Oikonomopoulos | |
98 | 199b2053 | Apollon Oikonomopoulos | tunflags = struct.unpack("I", res)[0] |
99 | 199b2053 | Apollon Oikonomopoulos | if tunflags & IFF_VNET_HDR:
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100 | 199b2053 | Apollon Oikonomopoulos | return True |
101 | 199b2053 | Apollon Oikonomopoulos | else:
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102 | 199b2053 | Apollon Oikonomopoulos | logging.warning("Host does not support IFF_VNET_HDR, not enabling")
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103 | 199b2053 | Apollon Oikonomopoulos | return False |
104 | 199b2053 | Apollon Oikonomopoulos | |
105 | 199b2053 | Apollon Oikonomopoulos | |
106 | 199b2053 | Apollon Oikonomopoulos | def _OpenTap(vnet_hdr=True): |
107 | 199b2053 | Apollon Oikonomopoulos | """Open a new tap device and return its file descriptor.
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108 | 199b2053 | Apollon Oikonomopoulos |
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109 | 199b2053 | Apollon Oikonomopoulos | This is intended to be used by a qemu-type hypervisor together with the -net
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110 | 199b2053 | Apollon Oikonomopoulos | tap,fd=<fd> command line parameter.
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111 | 199b2053 | Apollon Oikonomopoulos |
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112 | 199b2053 | Apollon Oikonomopoulos | @type vnet_hdr: boolean
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113 | 199b2053 | Apollon Oikonomopoulos | @param vnet_hdr: Enable the VNET Header
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114 | 199b2053 | Apollon Oikonomopoulos | @return: (ifname, tapfd)
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115 | 199b2053 | Apollon Oikonomopoulos | @rtype: tuple
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116 | 199b2053 | Apollon Oikonomopoulos |
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117 | 199b2053 | Apollon Oikonomopoulos | """
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118 | 199b2053 | Apollon Oikonomopoulos | try:
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119 | 199b2053 | Apollon Oikonomopoulos | tapfd = os.open("/dev/net/tun", os.O_RDWR)
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120 | 199b2053 | Apollon Oikonomopoulos | except EnvironmentError: |
121 | 199b2053 | Apollon Oikonomopoulos | raise errors.HypervisorError("Failed to open /dev/net/tun") |
122 | 199b2053 | Apollon Oikonomopoulos | |
123 | 199b2053 | Apollon Oikonomopoulos | flags = IFF_TAP | IFF_NO_PI |
124 | 199b2053 | Apollon Oikonomopoulos | |
125 | 199b2053 | Apollon Oikonomopoulos | if vnet_hdr and _ProbeTapVnetHdr(tapfd): |
126 | 199b2053 | Apollon Oikonomopoulos | flags |= IFF_VNET_HDR |
127 | 199b2053 | Apollon Oikonomopoulos | |
128 | 199b2053 | Apollon Oikonomopoulos | # The struct ifreq ioctl request (see netdevice(7))
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129 | 199b2053 | Apollon Oikonomopoulos | ifr = struct.pack("16sh", "", flags) |
130 | 199b2053 | Apollon Oikonomopoulos | |
131 | 199b2053 | Apollon Oikonomopoulos | try:
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132 | 199b2053 | Apollon Oikonomopoulos | res = fcntl.ioctl(tapfd, TUNSETIFF, ifr) |
133 | 199b2053 | Apollon Oikonomopoulos | except EnvironmentError: |
134 | 199b2053 | Apollon Oikonomopoulos | raise errors.HypervisorError("Failed to allocate a new TAP device") |
135 | 199b2053 | Apollon Oikonomopoulos | |
136 | 199b2053 | Apollon Oikonomopoulos | # Get the interface name from the ioctl
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137 | 199b2053 | Apollon Oikonomopoulos | ifname = struct.unpack("16sh", res)[0].strip("\x00") |
138 | 199b2053 | Apollon Oikonomopoulos | return (ifname, tapfd)
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139 | 199b2053 | Apollon Oikonomopoulos | |
140 | 748e4b5a | Michael Hanselmann | |
141 | 91c10532 | Andrea Spadaccini | class QmpMessage: |
142 | 91c10532 | Andrea Spadaccini | """QEMU Messaging Protocol (QMP) message.
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143 | 91c10532 | Andrea Spadaccini |
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144 | 91c10532 | Andrea Spadaccini | """
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145 | 91c10532 | Andrea Spadaccini | def __init__(self, data): |
146 | 91c10532 | Andrea Spadaccini | """Creates a new QMP message based on the passed data.
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147 | 91c10532 | Andrea Spadaccini |
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148 | 91c10532 | Andrea Spadaccini | """
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149 | 91c10532 | Andrea Spadaccini | if not isinstance(data, dict): |
150 | 91c10532 | Andrea Spadaccini | raise TypeError("QmpMessage must be initialized with a dict") |
151 | 91c10532 | Andrea Spadaccini | |
152 | 91c10532 | Andrea Spadaccini | self.data = data
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153 | 91c10532 | Andrea Spadaccini | |
154 | 91c10532 | Andrea Spadaccini | def __getitem__(self, field_name): |
155 | 91c10532 | Andrea Spadaccini | """Get the value of the required field if present, or None.
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156 | 91c10532 | Andrea Spadaccini |
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157 | 91c10532 | Andrea Spadaccini | Overrides the [] operator to provide access to the message data,
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158 | 91c10532 | Andrea Spadaccini | returning None if the required item is not in the message
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159 | 91c10532 | Andrea Spadaccini | @return: the value of the field_name field, or None if field_name
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160 | 91c10532 | Andrea Spadaccini | is not contained in the message
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161 | 91c10532 | Andrea Spadaccini |
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162 | 91c10532 | Andrea Spadaccini | """
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163 | 9b87c2cf | Michael Hanselmann | return self.data.get(field_name, None) |
164 | 91c10532 | Andrea Spadaccini | |
165 | 91c10532 | Andrea Spadaccini | def __setitem__(self, field_name, field_value): |
166 | 91c10532 | Andrea Spadaccini | """Set the value of the required field_name to field_value.
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167 | 91c10532 | Andrea Spadaccini |
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168 | 91c10532 | Andrea Spadaccini | """
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169 | 91c10532 | Andrea Spadaccini | self.data[field_name] = field_value
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170 | 91c10532 | Andrea Spadaccini | |
171 | 91c10532 | Andrea Spadaccini | @staticmethod
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172 | 91c10532 | Andrea Spadaccini | def BuildFromJsonString(json_string): |
173 | 91c10532 | Andrea Spadaccini | """Build a QmpMessage from a JSON encoded string.
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174 | 91c10532 | Andrea Spadaccini |
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175 | 91c10532 | Andrea Spadaccini | @type json_string: str
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176 | 91c10532 | Andrea Spadaccini | @param json_string: JSON string representing the message
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177 | 91c10532 | Andrea Spadaccini | @rtype: L{QmpMessage}
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178 | 91c10532 | Andrea Spadaccini | @return: a L{QmpMessage} built from json_string
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179 | 91c10532 | Andrea Spadaccini |
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180 | 91c10532 | Andrea Spadaccini | """
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181 | 91c10532 | Andrea Spadaccini | # Parse the string
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182 | 91c10532 | Andrea Spadaccini | data = serializer.LoadJson(json_string) |
183 | 91c10532 | Andrea Spadaccini | return QmpMessage(data)
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184 | 91c10532 | Andrea Spadaccini | |
185 | 91c10532 | Andrea Spadaccini | def __str__(self): |
186 | a182a3ed | Michael Hanselmann | # The protocol expects the JSON object to be sent as a single line.
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187 | a182a3ed | Michael Hanselmann | return serializer.DumpJson(self.data) |
188 | 91c10532 | Andrea Spadaccini | |
189 | 91c10532 | Andrea Spadaccini | def __eq__(self, other): |
190 | 91c10532 | Andrea Spadaccini | # When comparing two QmpMessages, we are interested in comparing
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191 | 91c10532 | Andrea Spadaccini | # their internal representation of the message data
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192 | 91c10532 | Andrea Spadaccini | return self.data == other.data |
193 | 91c10532 | Andrea Spadaccini | |
194 | 91c10532 | Andrea Spadaccini | |
195 | 91c10532 | Andrea Spadaccini | class QmpConnection: |
196 | 91c10532 | Andrea Spadaccini | """Connection to the QEMU Monitor using the QEMU Monitor Protocol (QMP).
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197 | 91c10532 | Andrea Spadaccini |
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198 | 91c10532 | Andrea Spadaccini | """
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199 | 91c10532 | Andrea Spadaccini | _FIRST_MESSAGE_KEY = "QMP"
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200 | 91c10532 | Andrea Spadaccini | _EVENT_KEY = "event"
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201 | 91c10532 | Andrea Spadaccini | _ERROR_KEY = "error"
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202 | 89da2ff3 | Guido Trotter | _RETURN_KEY = RETURN_KEY = "return"
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203 | 89da2ff3 | Guido Trotter | _ACTUAL_KEY = ACTUAL_KEY = "actual"
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204 | 91c10532 | Andrea Spadaccini | _ERROR_CLASS_KEY = "class"
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205 | 91c10532 | Andrea Spadaccini | _ERROR_DATA_KEY = "data"
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206 | 91c10532 | Andrea Spadaccini | _ERROR_DESC_KEY = "desc"
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207 | 91c10532 | Andrea Spadaccini | _EXECUTE_KEY = "execute"
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208 | 91c10532 | Andrea Spadaccini | _ARGUMENTS_KEY = "arguments"
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209 | 91c10532 | Andrea Spadaccini | _CAPABILITIES_COMMAND = "qmp_capabilities"
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210 | 91c10532 | Andrea Spadaccini | _MESSAGE_END_TOKEN = "\r\n"
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211 | 91c10532 | Andrea Spadaccini | _SOCKET_TIMEOUT = 5
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212 | 91c10532 | Andrea Spadaccini | |
213 | 91c10532 | Andrea Spadaccini | def __init__(self, monitor_filename): |
214 | 91c10532 | Andrea Spadaccini | """Instantiates the QmpConnection object.
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215 | 91c10532 | Andrea Spadaccini |
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216 | 91c10532 | Andrea Spadaccini | @type monitor_filename: string
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217 | 91c10532 | Andrea Spadaccini | @param monitor_filename: the filename of the UNIX raw socket on which the
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218 | 91c10532 | Andrea Spadaccini | QMP monitor is listening
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219 | 91c10532 | Andrea Spadaccini |
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220 | 91c10532 | Andrea Spadaccini | """
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221 | 91c10532 | Andrea Spadaccini | self.monitor_filename = monitor_filename
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222 | 91c10532 | Andrea Spadaccini | self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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223 | 91c10532 | Andrea Spadaccini | # We want to fail if the server doesn't send a complete message
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224 | 91c10532 | Andrea Spadaccini | # in a reasonable amount of time
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225 | 91c10532 | Andrea Spadaccini | self.sock.settimeout(self._SOCKET_TIMEOUT) |
226 | 91c10532 | Andrea Spadaccini | self._connected = False |
227 | 91c10532 | Andrea Spadaccini | self._buf = "" |
228 | 91c10532 | Andrea Spadaccini | |
229 | fc84cd5d | Guido Trotter | def _check_socket(self): |
230 | fc84cd5d | Guido Trotter | sock_stat = None
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231 | fc84cd5d | Guido Trotter | try:
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232 | fc84cd5d | Guido Trotter | sock_stat = os.stat(self.monitor_filename)
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233 | fc84cd5d | Guido Trotter | except EnvironmentError, err: |
234 | fc84cd5d | Guido Trotter | if err.errno == errno.ENOENT:
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235 | fc84cd5d | Guido Trotter | raise errors.HypervisorError("No qmp socket found") |
236 | fc84cd5d | Guido Trotter | else:
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237 | fc84cd5d | Guido Trotter | raise errors.HypervisorError("Error checking qmp socket: %s", |
238 | fc84cd5d | Guido Trotter | utils.ErrnoOrStr(err)) |
239 | fc84cd5d | Guido Trotter | if not stat.S_ISSOCK(sock_stat.st_mode): |
240 | fc84cd5d | Guido Trotter | raise errors.HypervisorError("Qmp socket is not a socket") |
241 | fc84cd5d | Guido Trotter | |
242 | 91c10532 | Andrea Spadaccini | def _check_connection(self): |
243 | 91c10532 | Andrea Spadaccini | """Make sure that the connection is established.
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244 | 91c10532 | Andrea Spadaccini |
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245 | 91c10532 | Andrea Spadaccini | """
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246 | 91c10532 | Andrea Spadaccini | if not self._connected: |
247 | 91c10532 | Andrea Spadaccini | raise errors.ProgrammerError("To use a QmpConnection you need to first" |
248 | 91c10532 | Andrea Spadaccini | " invoke connect() on it")
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249 | 91c10532 | Andrea Spadaccini | |
250 | 91c10532 | Andrea Spadaccini | def connect(self): |
251 | 91c10532 | Andrea Spadaccini | """Connects to the QMP monitor.
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252 | 91c10532 | Andrea Spadaccini |
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253 | 91c10532 | Andrea Spadaccini | Connects to the UNIX socket and makes sure that we can actually send and
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254 | 91c10532 | Andrea Spadaccini | receive data to the kvm instance via QMP.
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255 | 91c10532 | Andrea Spadaccini |
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256 | 91c10532 | Andrea Spadaccini | @raise errors.HypervisorError: when there are communication errors
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257 | 91c10532 | Andrea Spadaccini | @raise errors.ProgrammerError: when there are data serialization errors
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258 | 91c10532 | Andrea Spadaccini |
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259 | 91c10532 | Andrea Spadaccini | """
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260 | fc84cd5d | Guido Trotter | if self._connected: |
261 | fc84cd5d | Guido Trotter | raise errors.ProgrammerError("Cannot connect twice") |
262 | fc84cd5d | Guido Trotter | |
263 | fc84cd5d | Guido Trotter | self._check_socket()
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264 | fc84cd5d | Guido Trotter | |
265 | fc84cd5d | Guido Trotter | # Check file existance/stuff
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266 | fc84cd5d | Guido Trotter | try:
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267 | fc84cd5d | Guido Trotter | self.sock.connect(self.monitor_filename) |
268 | fc84cd5d | Guido Trotter | except EnvironmentError: |
269 | fc84cd5d | Guido Trotter | raise errors.HypervisorError("Can't connect to qmp socket") |
270 | 91c10532 | Andrea Spadaccini | self._connected = True |
271 | 91c10532 | Andrea Spadaccini | |
272 | 91c10532 | Andrea Spadaccini | # Check if we receive a correct greeting message from the server
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273 | 91c10532 | Andrea Spadaccini | # (As per the QEMU Protocol Specification 0.1 - section 2.2)
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274 | 91c10532 | Andrea Spadaccini | greeting = self._Recv()
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275 | 91c10532 | Andrea Spadaccini | if not greeting[self._FIRST_MESSAGE_KEY]: |
276 | 91c10532 | Andrea Spadaccini | self._connected = False |
277 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("kvm: qmp communication error (wrong" |
278 | 91c10532 | Andrea Spadaccini | " server greeting")
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279 | 91c10532 | Andrea Spadaccini | |
280 | 91c10532 | Andrea Spadaccini | # Let's put the monitor in command mode using the qmp_capabilities
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281 | 91c10532 | Andrea Spadaccini | # command, or else no command will be executable.
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282 | 91c10532 | Andrea Spadaccini | # (As per the QEMU Protocol Specification 0.1 - section 4)
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283 | 91c10532 | Andrea Spadaccini | self.Execute(self._CAPABILITIES_COMMAND) |
284 | 91c10532 | Andrea Spadaccini | |
285 | 91c10532 | Andrea Spadaccini | def _ParseMessage(self, buf): |
286 | 91c10532 | Andrea Spadaccini | """Extract and parse a QMP message from the given buffer.
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287 | 91c10532 | Andrea Spadaccini |
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288 | 91c10532 | Andrea Spadaccini | Seeks for a QMP message in the given buf. If found, it parses it and
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289 | 91c10532 | Andrea Spadaccini | returns it together with the rest of the characters in the buf.
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290 | 91c10532 | Andrea Spadaccini | If no message is found, returns None and the whole buffer.
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291 | 91c10532 | Andrea Spadaccini |
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292 | 91c10532 | Andrea Spadaccini | @raise errors.ProgrammerError: when there are data serialization errors
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293 | 91c10532 | Andrea Spadaccini |
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294 | 91c10532 | Andrea Spadaccini | """
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295 | 91c10532 | Andrea Spadaccini | message = None
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296 | 91c10532 | Andrea Spadaccini | # Check if we got the message end token (CRLF, as per the QEMU Protocol
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297 | 91c10532 | Andrea Spadaccini | # Specification 0.1 - Section 2.1.1)
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298 | 91c10532 | Andrea Spadaccini | pos = buf.find(self._MESSAGE_END_TOKEN)
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299 | 91c10532 | Andrea Spadaccini | if pos >= 0: |
300 | 91c10532 | Andrea Spadaccini | try:
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301 | 91c10532 | Andrea Spadaccini | message = QmpMessage.BuildFromJsonString(buf[:pos + 1])
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302 | 91c10532 | Andrea Spadaccini | except Exception, err: |
303 | 91c10532 | Andrea Spadaccini | raise errors.ProgrammerError("QMP data serialization error: %s" % err) |
304 | 91c10532 | Andrea Spadaccini | buf = buf[pos + 1:]
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305 | 91c10532 | Andrea Spadaccini | |
306 | 91c10532 | Andrea Spadaccini | return (message, buf)
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307 | 91c10532 | Andrea Spadaccini | |
308 | 91c10532 | Andrea Spadaccini | def _Recv(self): |
309 | 91c10532 | Andrea Spadaccini | """Receives a message from QMP and decodes the received JSON object.
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310 | 91c10532 | Andrea Spadaccini |
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311 | 91c10532 | Andrea Spadaccini | @rtype: QmpMessage
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312 | 91c10532 | Andrea Spadaccini | @return: the received message
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313 | 91c10532 | Andrea Spadaccini | @raise errors.HypervisorError: when there are communication errors
|
314 | 91c10532 | Andrea Spadaccini | @raise errors.ProgrammerError: when there are data serialization errors
|
315 | 91c10532 | Andrea Spadaccini |
|
316 | 91c10532 | Andrea Spadaccini | """
|
317 | 91c10532 | Andrea Spadaccini | self._check_connection()
|
318 | 91c10532 | Andrea Spadaccini | |
319 | 91c10532 | Andrea Spadaccini | # Check if there is already a message in the buffer
|
320 | 91c10532 | Andrea Spadaccini | (message, self._buf) = self._ParseMessage(self._buf) |
321 | 91c10532 | Andrea Spadaccini | if message:
|
322 | 91c10532 | Andrea Spadaccini | return message
|
323 | 91c10532 | Andrea Spadaccini | |
324 | 91c10532 | Andrea Spadaccini | recv_buffer = StringIO.StringIO(self._buf)
|
325 | 91c10532 | Andrea Spadaccini | recv_buffer.seek(len(self._buf)) |
326 | 91c10532 | Andrea Spadaccini | try:
|
327 | 91c10532 | Andrea Spadaccini | while True: |
328 | 91c10532 | Andrea Spadaccini | data = self.sock.recv(4096) |
329 | 91c10532 | Andrea Spadaccini | if not data: |
330 | 91c10532 | Andrea Spadaccini | break
|
331 | 91c10532 | Andrea Spadaccini | recv_buffer.write(data) |
332 | 91c10532 | Andrea Spadaccini | |
333 | 91c10532 | Andrea Spadaccini | (message, self._buf) = self._ParseMessage(recv_buffer.getvalue()) |
334 | 91c10532 | Andrea Spadaccini | if message:
|
335 | 91c10532 | Andrea Spadaccini | return message
|
336 | 91c10532 | Andrea Spadaccini | |
337 | 91c10532 | Andrea Spadaccini | except socket.timeout, err:
|
338 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("Timeout while receiving a QMP message: " |
339 | 91c10532 | Andrea Spadaccini | "%s" % (err))
|
340 | 91c10532 | Andrea Spadaccini | except socket.error, err:
|
341 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("Unable to receive data from KVM using the" |
342 | 91c10532 | Andrea Spadaccini | " QMP protocol: %s" % err)
|
343 | 91c10532 | Andrea Spadaccini | |
344 | 91c10532 | Andrea Spadaccini | def _Send(self, message): |
345 | 91c10532 | Andrea Spadaccini | """Encodes and sends a message to KVM using QMP.
|
346 | 91c10532 | Andrea Spadaccini |
|
347 | 91c10532 | Andrea Spadaccini | @type message: QmpMessage
|
348 | 91c10532 | Andrea Spadaccini | @param message: message to send to KVM
|
349 | 91c10532 | Andrea Spadaccini | @raise errors.HypervisorError: when there are communication errors
|
350 | 91c10532 | Andrea Spadaccini | @raise errors.ProgrammerError: when there are data serialization errors
|
351 | 91c10532 | Andrea Spadaccini |
|
352 | 91c10532 | Andrea Spadaccini | """
|
353 | 91c10532 | Andrea Spadaccini | self._check_connection()
|
354 | 91c10532 | Andrea Spadaccini | try:
|
355 | 91c10532 | Andrea Spadaccini | message_str = str(message)
|
356 | 91c10532 | Andrea Spadaccini | except Exception, err: |
357 | 91c10532 | Andrea Spadaccini | raise errors.ProgrammerError("QMP data deserialization error: %s" % err) |
358 | 91c10532 | Andrea Spadaccini | |
359 | 91c10532 | Andrea Spadaccini | try:
|
360 | 91c10532 | Andrea Spadaccini | self.sock.sendall(message_str)
|
361 | 91c10532 | Andrea Spadaccini | except socket.timeout, err:
|
362 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("Timeout while sending a QMP message: " |
363 | 91c10532 | Andrea Spadaccini | "%s (%s)" % (err.string, err.errno))
|
364 | 91c10532 | Andrea Spadaccini | except socket.error, err:
|
365 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("Unable to send data from KVM using the" |
366 | 91c10532 | Andrea Spadaccini | " QMP protocol: %s" % err)
|
367 | 91c10532 | Andrea Spadaccini | |
368 | 91c10532 | Andrea Spadaccini | def Execute(self, command, arguments=None): |
369 | 91c10532 | Andrea Spadaccini | """Executes a QMP command and returns the response of the server.
|
370 | 91c10532 | Andrea Spadaccini |
|
371 | 91c10532 | Andrea Spadaccini | @type command: str
|
372 | 91c10532 | Andrea Spadaccini | @param command: the command to execute
|
373 | 91c10532 | Andrea Spadaccini | @type arguments: dict
|
374 | 91c10532 | Andrea Spadaccini | @param arguments: dictionary of arguments to be passed to the command
|
375 | 91c10532 | Andrea Spadaccini | @rtype: dict
|
376 | 91c10532 | Andrea Spadaccini | @return: dictionary representing the received JSON object
|
377 | 91c10532 | Andrea Spadaccini | @raise errors.HypervisorError: when there are communication errors
|
378 | 91c10532 | Andrea Spadaccini | @raise errors.ProgrammerError: when there are data serialization errors
|
379 | 91c10532 | Andrea Spadaccini |
|
380 | 91c10532 | Andrea Spadaccini | """
|
381 | 91c10532 | Andrea Spadaccini | self._check_connection()
|
382 | 91c10532 | Andrea Spadaccini | message = QmpMessage({self._EXECUTE_KEY: command})
|
383 | 91c10532 | Andrea Spadaccini | if arguments:
|
384 | 91c10532 | Andrea Spadaccini | message[self._ARGUMENTS_KEY] = arguments
|
385 | 91c10532 | Andrea Spadaccini | self._Send(message)
|
386 | 91c10532 | Andrea Spadaccini | |
387 | 91c10532 | Andrea Spadaccini | # Events can occur between the sending of the command and the reception
|
388 | 91c10532 | Andrea Spadaccini | # of the response, so we need to filter out messages with the event key.
|
389 | 91c10532 | Andrea Spadaccini | while True: |
390 | 91c10532 | Andrea Spadaccini | response = self._Recv()
|
391 | 91c10532 | Andrea Spadaccini | err = response[self._ERROR_KEY]
|
392 | 91c10532 | Andrea Spadaccini | if err:
|
393 | 91c10532 | Andrea Spadaccini | raise errors.HypervisorError("kvm: error executing the %s" |
394 | 91c10532 | Andrea Spadaccini | " command: %s (%s, %s):" %
|
395 | 91c10532 | Andrea Spadaccini | (command, |
396 | 91c10532 | Andrea Spadaccini | err[self._ERROR_DESC_KEY],
|
397 | 91c10532 | Andrea Spadaccini | err[self._ERROR_CLASS_KEY],
|
398 | 91c10532 | Andrea Spadaccini | err[self._ERROR_DATA_KEY]))
|
399 | 91c10532 | Andrea Spadaccini | |
400 | 91c10532 | Andrea Spadaccini | elif not response[self._EVENT_KEY]: |
401 | 91c10532 | Andrea Spadaccini | return response
|
402 | 91c10532 | Andrea Spadaccini | |
403 | 91c10532 | Andrea Spadaccini | |
404 | eb58f9b1 | Guido Trotter | class KVMHypervisor(hv_base.BaseHypervisor): |
405 | 65107a2f | Michael Hanselmann | """KVM hypervisor interface
|
406 | 65107a2f | Michael Hanselmann |
|
407 | 65107a2f | Michael Hanselmann | """
|
408 | d271c6fd | Iustin Pop | CAN_MIGRATE = True
|
409 | eb58f9b1 | Guido Trotter | |
410 | eb58f9b1 | Guido Trotter | _ROOT_DIR = constants.RUN_GANETI_DIR + "/kvm-hypervisor"
|
411 | a1d79fc6 | Guido Trotter | _PIDS_DIR = _ROOT_DIR + "/pid" # contains live instances pids |
412 | 7548396c | Guido Trotter | _UIDS_DIR = _ROOT_DIR + "/uid" # contains instances reserved uids |
413 | a1d79fc6 | Guido Trotter | _CTRL_DIR = _ROOT_DIR + "/ctrl" # contains instances control sockets |
414 | a1d79fc6 | Guido Trotter | _CONF_DIR = _ROOT_DIR + "/conf" # contains instances startup data |
415 | 5d9bfd87 | Apollon Oikonomopoulos | _NICS_DIR = _ROOT_DIR + "/nic" # contains instances nic <-> tap associations |
416 | 4f580fef | Sรฉbastien Bocahu | _KEYMAP_DIR = _ROOT_DIR + "/keymap" # contains instances keymaps |
417 | 547a63b7 | Balazs Lecz | # KVM instances with chroot enabled are started in empty chroot directories.
|
418 | 547a63b7 | Balazs Lecz | _CHROOT_DIR = _ROOT_DIR + "/chroot" # for empty chroot directories |
419 | 547a63b7 | Balazs Lecz | # After an instance is stopped, its chroot directory is removed.
|
420 | 547a63b7 | Balazs Lecz | # If the chroot directory is not empty, it can't be removed.
|
421 | 547a63b7 | Balazs Lecz | # A non-empty chroot directory indicates a possible security incident.
|
422 | 547a63b7 | Balazs Lecz | # To support forensics, the non-empty chroot directory is quarantined in
|
423 | 547a63b7 | Balazs Lecz | # a separate directory, called 'chroot-quarantine'.
|
424 | 547a63b7 | Balazs Lecz | _CHROOT_QUARANTINE_DIR = _ROOT_DIR + "/chroot-quarantine"
|
425 | 5d9bfd87 | Apollon Oikonomopoulos | _DIRS = [_ROOT_DIR, _PIDS_DIR, _UIDS_DIR, _CTRL_DIR, _CONF_DIR, _NICS_DIR, |
426 | 2911f46c | Iustin Pop | _CHROOT_DIR, _CHROOT_QUARANTINE_DIR, _KEYMAP_DIR] |
427 | eb58f9b1 | Guido Trotter | |
428 | 205ab586 | Iustin Pop | PARAMETERS = { |
429 | 205ab586 | Iustin Pop | constants.HV_KERNEL_PATH: hv_base.OPT_FILE_CHECK, |
430 | 205ab586 | Iustin Pop | constants.HV_INITRD_PATH: hv_base.OPT_FILE_CHECK, |
431 | 205ab586 | Iustin Pop | constants.HV_ROOT_PATH: hv_base.NO_CHECK, |
432 | 205ab586 | Iustin Pop | constants.HV_KERNEL_ARGS: hv_base.NO_CHECK, |
433 | 205ab586 | Iustin Pop | constants.HV_ACPI: hv_base.NO_CHECK, |
434 | 205ab586 | Iustin Pop | constants.HV_SERIAL_CONSOLE: hv_base.NO_CHECK, |
435 | d73ef63f | Michael Hanselmann | constants.HV_VNC_BIND_ADDRESS: |
436 | 8b312c1d | Manuel Franceschini | (False, lambda x: (netutils.IP4Address.IsValid(x) or |
437 | 8b312c1d | Manuel Franceschini | utils.IsNormAbsPath(x)), |
438 | d73ef63f | Michael Hanselmann | "the VNC bind address must be either a valid IP address or an absolute"
|
439 | d73ef63f | Michael Hanselmann | " pathname", None, None), |
440 | 205ab586 | Iustin Pop | constants.HV_VNC_TLS: hv_base.NO_CHECK, |
441 | 205ab586 | Iustin Pop | constants.HV_VNC_X509: hv_base.OPT_DIR_CHECK, |
442 | 205ab586 | Iustin Pop | constants.HV_VNC_X509_VERIFY: hv_base.NO_CHECK, |
443 | 6e6bb8d5 | Guido Trotter | constants.HV_VNC_PASSWORD_FILE: hv_base.OPT_FILE_CHECK, |
444 | b1cb62bd | Andrea Spadaccini | constants.HV_KVM_SPICE_BIND: hv_base.NO_CHECK, # will be checked later
|
445 | b1cb62bd | Andrea Spadaccini | constants.HV_KVM_SPICE_IP_VERSION: |
446 | b1cb62bd | Andrea Spadaccini | (False, lambda x: (x == constants.IFACE_NO_IP_VERSION_SPECIFIED or |
447 | b1cb62bd | Andrea Spadaccini | x in constants.VALID_IP_VERSIONS),
|
448 | b1cb62bd | Andrea Spadaccini | "the SPICE IP version should be 4 or 6",
|
449 | b1cb62bd | Andrea Spadaccini | None, None), |
450 | b451c4c7 | Andrea Spadaccini | constants.HV_KVM_SPICE_PASSWORD_FILE: hv_base.OPT_FILE_CHECK, |
451 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_LOSSLESS_IMG_COMPR: |
452 | ea064d24 | Andrea Spadaccini | hv_base.ParamInSet(False,
|
453 | ea064d24 | Andrea Spadaccini | constants.HT_KVM_SPICE_VALID_LOSSLESS_IMG_COMPR_OPTIONS), |
454 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_JPEG_IMG_COMPR: |
455 | ea064d24 | Andrea Spadaccini | hv_base.ParamInSet(False,
|
456 | ea064d24 | Andrea Spadaccini | constants.HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS), |
457 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR: |
458 | ea064d24 | Andrea Spadaccini | hv_base.ParamInSet(False,
|
459 | ea064d24 | Andrea Spadaccini | constants.HT_KVM_SPICE_VALID_LOSSY_IMG_COMPR_OPTIONS), |
460 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_STREAMING_VIDEO_DETECTION: |
461 | ea064d24 | Andrea Spadaccini | hv_base.ParamInSet(False,
|
462 | ea064d24 | Andrea Spadaccini | constants.HT_KVM_SPICE_VALID_VIDEO_STREAM_DETECTION_OPTIONS), |
463 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_AUDIO_COMPR: hv_base.NO_CHECK, |
464 | bfe86c76 | Andrea Spadaccini | constants.HV_KVM_SPICE_USE_TLS: hv_base.NO_CHECK, |
465 | 3e40b587 | Andrea Spadaccini | constants.HV_KVM_SPICE_TLS_CIPHERS: hv_base.NO_CHECK, |
466 | 3e40b587 | Andrea Spadaccini | constants.HV_KVM_SPICE_USE_VDAGENT: hv_base.NO_CHECK, |
467 | cc130cc7 | Marco Casavecchia | constants.HV_KVM_FLOPPY_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
468 | 205ab586 | Iustin Pop | constants.HV_CDROM_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
469 | cc130cc7 | Marco Casavecchia | constants.HV_KVM_CDROM2_IMAGE_PATH: hv_base.OPT_FILE_CHECK, |
470 | d73ef63f | Michael Hanselmann | constants.HV_BOOT_ORDER: |
471 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_BO_TYPES),
|
472 | d73ef63f | Michael Hanselmann | constants.HV_NIC_TYPE: |
473 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_NIC_TYPES),
|
474 | d73ef63f | Michael Hanselmann | constants.HV_DISK_TYPE: |
475 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(True, constants.HT_KVM_VALID_DISK_TYPES),
|
476 | cc130cc7 | Marco Casavecchia | constants.HV_KVM_CDROM_DISK_TYPE: |
477 | cc130cc7 | Marco Casavecchia | hv_base.ParamInSet(False, constants.HT_KVM_VALID_DISK_TYPES),
|
478 | d73ef63f | Michael Hanselmann | constants.HV_USB_MOUSE: |
479 | d73ef63f | Michael Hanselmann | hv_base.ParamInSet(False, constants.HT_KVM_VALID_MOUSE_TYPES),
|
480 | 4f580fef | Sรฉbastien Bocahu | constants.HV_KEYMAP: hv_base.NO_CHECK, |
481 | e2d14329 | Andrea Spadaccini | constants.HV_MIGRATION_PORT: hv_base.REQ_NET_PORT_CHECK, |
482 | e43d4f9f | Apollon Oikonomopoulos | constants.HV_MIGRATION_BANDWIDTH: hv_base.NO_CHECK, |
483 | e43d4f9f | Apollon Oikonomopoulos | constants.HV_MIGRATION_DOWNTIME: hv_base.NO_CHECK, |
484 | 783a6c0b | Iustin Pop | constants.HV_MIGRATION_MODE: hv_base.MIGRATION_MODE_CHECK, |
485 | 6b970cef | Jun Futagawa | constants.HV_USE_LOCALTIME: hv_base.NO_CHECK, |
486 | 19572932 | Iustin Pop | constants.HV_DISK_CACHE: |
487 | 19572932 | Iustin Pop | hv_base.ParamInSet(True, constants.HT_VALID_CACHE_TYPES),
|
488 | d19d94db | Guido Trotter | constants.HV_SECURITY_MODEL: |
489 | d19d94db | Guido Trotter | hv_base.ParamInSet(True, constants.HT_KVM_VALID_SM_TYPES),
|
490 | d19d94db | Guido Trotter | constants.HV_SECURITY_DOMAIN: hv_base.NO_CHECK, |
491 | 7ba594c0 | Guido Trotter | constants.HV_KVM_FLAG: |
492 | 7ba594c0 | Guido Trotter | hv_base.ParamInSet(False, constants.HT_KVM_FLAG_VALUES),
|
493 | fbe27e2b | Guido Trotter | constants.HV_VHOST_NET: hv_base.NO_CHECK, |
494 | 547a63b7 | Balazs Lecz | constants.HV_KVM_USE_CHROOT: hv_base.NO_CHECK, |
495 | 4f958b0b | Miguel Di Ciurcio Filho | constants.HV_MEM_PATH: hv_base.OPT_DIR_CHECK, |
496 | 990ade2d | Stephen Shirley | constants.HV_REBOOT_BEHAVIOR: |
497 | a7f884d3 | Tsachy Shacham | hv_base.ParamInSet(True, constants.REBOOT_BEHAVIORS),
|
498 | a7f884d3 | Tsachy Shacham | constants.HV_CPU_MASK: hv_base.OPT_MULTI_CPU_MASK_CHECK, |
499 | 205ab586 | Iustin Pop | } |
500 | 6b5605e8 | Iustin Pop | |
501 | d0c8c01d | Iustin Pop | _MIGRATION_STATUS_RE = re.compile("Migration\s+status:\s+(\w+)",
|
502 | 30e42c4e | Guido Trotter | re.M | re.I) |
503 | 65107a2f | Michael Hanselmann | _MIGRATION_PROGRESS_RE = \ |
504 | 527c0cf7 | Michael Hanselmann | re.compile(r"\s*transferred\s+ram:\s+(?P<transferred>\d+)\s+kbytes\s*\n"
|
505 | 527c0cf7 | Michael Hanselmann | r"\s*remaining\s+ram:\s+(?P<remaining>\d+)\s+kbytes\s*\n"
|
506 | 527c0cf7 | Michael Hanselmann | r"\s*total\s+ram:\s+(?P<total>\d+)\s+kbytes\s*\n", re.I)
|
507 | 61643226 | Andrea Spadaccini | |
508 | c4e388a5 | Guido Trotter | _MIGRATION_INFO_MAX_BAD_ANSWERS = 5
|
509 | c4e388a5 | Guido Trotter | _MIGRATION_INFO_RETRY_DELAY = 2
|
510 | 30e42c4e | Guido Trotter | |
511 | 585c8187 | Guido Trotter | _VERSION_RE = re.compile(r"\b(\d+)\.(\d+)(\.(\d+))?\b")
|
512 | b52d85c1 | Guido Trotter | |
513 | b693125f | Tsachy Shacham | _CPU_INFO_RE = re.compile(r"cpu\s+\#(\d+).*thread_id\s*=\s*(\d+)", re.I)
|
514 | b693125f | Tsachy Shacham | _CPU_INFO_CMD = "info cpus"
|
515 | b693125f | Tsachy Shacham | _CONT_CMD = "cont"
|
516 | b693125f | Tsachy Shacham | |
517 | 2435f63b | Dimitris Aragiorgis | _INFO_PCI_RE = re.compile(r'Bus.*device[ ]*(\d+).*')
|
518 | 2435f63b | Dimitris Aragiorgis | _INFO_PCI_CMD = "info pci"
|
519 | 2435f63b | Dimitris Aragiorgis | |
520 | 2435f63b | Dimitris Aragiorgis | |
521 | 64bfbc08 | Guido Trotter | ANCILLARY_FILES = [ |
522 | 64bfbc08 | Guido Trotter | _KVM_NETWORK_SCRIPT, |
523 | 64bfbc08 | Guido Trotter | ] |
524 | 69ab2e12 | Guido Trotter | ANCILLARY_FILES_OPT = [ |
525 | 69ab2e12 | Guido Trotter | _KVM_NETWORK_SCRIPT, |
526 | 69ab2e12 | Guido Trotter | ] |
527 | 64bfbc08 | Guido Trotter | |
528 | eb58f9b1 | Guido Trotter | def __init__(self): |
529 | eb58f9b1 | Guido Trotter | hv_base.BaseHypervisor.__init__(self)
|
530 | eb58f9b1 | Guido Trotter | # Let's make sure the directories we need exist, even if the RUN_DIR lives
|
531 | eb58f9b1 | Guido Trotter | # in a tmpfs filesystem or has been otherwise wiped out.
|
532 | 29921401 | Iustin Pop | dirs = [(dname, constants.RUN_DIRS_MODE) for dname in self._DIRS] |
533 | 9afb67fe | Guido Trotter | utils.EnsureDirs(dirs) |
534 | eb58f9b1 | Guido Trotter | |
535 | 30786fc9 | Iustin Pop | @classmethod
|
536 | 30786fc9 | Iustin Pop | def _InstancePidFile(cls, instance_name): |
537 | 98ec75d6 | Iustin Pop | """Returns the instance pidfile.
|
538 | 98ec75d6 | Iustin Pop |
|
539 | 98ec75d6 | Iustin Pop | """
|
540 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._PIDS_DIR, instance_name)
|
541 | 98ec75d6 | Iustin Pop | |
542 | 263b8de6 | Guido Trotter | @classmethod
|
543 | 7548396c | Guido Trotter | def _InstanceUidFile(cls, instance_name): |
544 | 7548396c | Guido Trotter | """Returns the instance uidfile.
|
545 | 7548396c | Guido Trotter |
|
546 | 7548396c | Guido Trotter | """
|
547 | 7548396c | Guido Trotter | return utils.PathJoin(cls._UIDS_DIR, instance_name)
|
548 | 7548396c | Guido Trotter | |
549 | 7548396c | Guido Trotter | @classmethod
|
550 | 263b8de6 | Guido Trotter | def _InstancePidInfo(cls, pid): |
551 | 263b8de6 | Guido Trotter | """Check pid file for instance information.
|
552 | 263b8de6 | Guido Trotter |
|
553 | 263b8de6 | Guido Trotter | Check that a pid file is associated with an instance, and retrieve
|
554 | 263b8de6 | Guido Trotter | information from its command line.
|
555 | 263b8de6 | Guido Trotter |
|
556 | 263b8de6 | Guido Trotter | @type pid: string or int
|
557 | 263b8de6 | Guido Trotter | @param pid: process id of the instance to check
|
558 | 263b8de6 | Guido Trotter | @rtype: tuple
|
559 | 263b8de6 | Guido Trotter | @return: (instance_name, memory, vcpus)
|
560 | 263b8de6 | Guido Trotter | @raise errors.HypervisorError: when an instance cannot be found
|
561 | 263b8de6 | Guido Trotter |
|
562 | 263b8de6 | Guido Trotter | """
|
563 | 263b8de6 | Guido Trotter | alive = utils.IsProcessAlive(pid) |
564 | 263b8de6 | Guido Trotter | if not alive: |
565 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Cannot get info for pid %s" % pid) |
566 | 263b8de6 | Guido Trotter | |
567 | 263b8de6 | Guido Trotter | cmdline_file = utils.PathJoin("/proc", str(pid), "cmdline") |
568 | 263b8de6 | Guido Trotter | try:
|
569 | 263b8de6 | Guido Trotter | cmdline = utils.ReadFile(cmdline_file) |
570 | 263b8de6 | Guido Trotter | except EnvironmentError, err: |
571 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Can't open cmdline file for pid %s: %s" % |
572 | 263b8de6 | Guido Trotter | (pid, err)) |
573 | 263b8de6 | Guido Trotter | |
574 | 263b8de6 | Guido Trotter | instance = None
|
575 | 263b8de6 | Guido Trotter | memory = 0
|
576 | 263b8de6 | Guido Trotter | vcpus = 0
|
577 | 263b8de6 | Guido Trotter | |
578 | d0c8c01d | Iustin Pop | arg_list = cmdline.split("\x00")
|
579 | 263b8de6 | Guido Trotter | while arg_list:
|
580 | e687ec01 | Michael Hanselmann | arg = arg_list.pop(0)
|
581 | 263b8de6 | Guido Trotter | if arg == "-name": |
582 | 263b8de6 | Guido Trotter | instance = arg_list.pop(0)
|
583 | 263b8de6 | Guido Trotter | elif arg == "-m": |
584 | 263b8de6 | Guido Trotter | memory = int(arg_list.pop(0)) |
585 | 263b8de6 | Guido Trotter | elif arg == "-smp": |
586 | 263b8de6 | Guido Trotter | vcpus = int(arg_list.pop(0)) |
587 | 263b8de6 | Guido Trotter | |
588 | 263b8de6 | Guido Trotter | if instance is None: |
589 | 263b8de6 | Guido Trotter | raise errors.HypervisorError("Pid %s doesn't contain a ganeti kvm" |
590 | 263b8de6 | Guido Trotter | " instance" % pid)
|
591 | 263b8de6 | Guido Trotter | |
592 | 263b8de6 | Guido Trotter | return (instance, memory, vcpus)
|
593 | 263b8de6 | Guido Trotter | |
594 | 1f8b3a27 | Guido Trotter | def _InstancePidAlive(self, instance_name): |
595 | 263b8de6 | Guido Trotter | """Returns the instance pidfile, pid, and liveness.
|
596 | 263b8de6 | Guido Trotter |
|
597 | 263b8de6 | Guido Trotter | @type instance_name: string
|
598 | 263b8de6 | Guido Trotter | @param instance_name: instance name
|
599 | 263b8de6 | Guido Trotter | @rtype: tuple
|
600 | 263b8de6 | Guido Trotter | @return: (pid file name, pid, liveness)
|
601 | 1f8b3a27 | Guido Trotter |
|
602 | 1f8b3a27 | Guido Trotter | """
|
603 | 98ec75d6 | Iustin Pop | pidfile = self._InstancePidFile(instance_name)
|
604 | 1f8b3a27 | Guido Trotter | pid = utils.ReadPidFile(pidfile) |
605 | 263b8de6 | Guido Trotter | |
606 | 263b8de6 | Guido Trotter | alive = False
|
607 | 263b8de6 | Guido Trotter | try:
|
608 | 263b8de6 | Guido Trotter | cmd_instance = self._InstancePidInfo(pid)[0] |
609 | 263b8de6 | Guido Trotter | alive = (cmd_instance == instance_name) |
610 | 263b8de6 | Guido Trotter | except errors.HypervisorError:
|
611 | 263b8de6 | Guido Trotter | pass
|
612 | 1f8b3a27 | Guido Trotter | |
613 | 1f8b3a27 | Guido Trotter | return (pidfile, pid, alive)
|
614 | 1f8b3a27 | Guido Trotter | |
615 | 5905901c | Iustin Pop | def _CheckDown(self, instance_name): |
616 | 5905901c | Iustin Pop | """Raises an error unless the given instance is down.
|
617 | 5905901c | Iustin Pop |
|
618 | 5905901c | Iustin Pop | """
|
619 | 5905901c | Iustin Pop | alive = self._InstancePidAlive(instance_name)[2] |
620 | 5905901c | Iustin Pop | if alive:
|
621 | 5905901c | Iustin Pop | raise errors.HypervisorError("Failed to start instance %s: %s" % |
622 | 5905901c | Iustin Pop | (instance_name, "already running"))
|
623 | 5905901c | Iustin Pop | |
624 | 0df4d98a | Guido Trotter | @classmethod
|
625 | 0df4d98a | Guido Trotter | def _InstanceMonitor(cls, instance_name): |
626 | c4fbefc8 | Guido Trotter | """Returns the instance monitor socket name
|
627 | c4fbefc8 | Guido Trotter |
|
628 | c4fbefc8 | Guido Trotter | """
|
629 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CTRL_DIR, "%s.monitor" % instance_name) |
630 | c4fbefc8 | Guido Trotter | |
631 | 0df4d98a | Guido Trotter | @classmethod
|
632 | 0df4d98a | Guido Trotter | def _InstanceSerial(cls, instance_name): |
633 | c4fbefc8 | Guido Trotter | """Returns the instance serial socket name
|
634 | c4fbefc8 | Guido Trotter |
|
635 | c4fbefc8 | Guido Trotter | """
|
636 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CTRL_DIR, "%s.serial" % instance_name) |
637 | c4fbefc8 | Guido Trotter | |
638 | 91c10532 | Andrea Spadaccini | @classmethod
|
639 | 91c10532 | Andrea Spadaccini | def _InstanceQmpMonitor(cls, instance_name): |
640 | 91c10532 | Andrea Spadaccini | """Returns the instance serial QMP socket name
|
641 | 91c10532 | Andrea Spadaccini |
|
642 | 91c10532 | Andrea Spadaccini | """
|
643 | 91c10532 | Andrea Spadaccini | return utils.PathJoin(cls._CTRL_DIR, "%s.qmp" % instance_name) |
644 | 91c10532 | Andrea Spadaccini | |
645 | 86d6bc2a | Guido Trotter | @staticmethod
|
646 | 86d6bc2a | Guido Trotter | def _SocatUnixConsoleParams(): |
647 | 86d6bc2a | Guido Trotter | """Returns the correct parameters for socat
|
648 | 86d6bc2a | Guido Trotter |
|
649 | 86d6bc2a | Guido Trotter | If we have a new-enough socat we can use raw mode with an escape character.
|
650 | 86d6bc2a | Guido Trotter |
|
651 | 86d6bc2a | Guido Trotter | """
|
652 | fe5b0c42 | Michael Hanselmann | if constants.SOCAT_USE_ESCAPE:
|
653 | 86d6bc2a | Guido Trotter | return "raw,echo=0,escape=%s" % constants.SOCAT_ESCAPE_CODE |
654 | 86d6bc2a | Guido Trotter | else:
|
655 | 86d6bc2a | Guido Trotter | return "echo=0,icanon=0" |
656 | 86d6bc2a | Guido Trotter | |
657 | 0df4d98a | Guido Trotter | @classmethod
|
658 | 0df4d98a | Guido Trotter | def _InstanceKVMRuntime(cls, instance_name): |
659 | 38e250ba | Guido Trotter | """Returns the instance KVM runtime filename
|
660 | 38e250ba | Guido Trotter |
|
661 | 38e250ba | Guido Trotter | """
|
662 | 30786fc9 | Iustin Pop | return utils.PathJoin(cls._CONF_DIR, "%s.runtime" % instance_name) |
663 | 38e250ba | Guido Trotter | |
664 | 7e66c35b | Guido Trotter | @classmethod
|
665 | 547a63b7 | Balazs Lecz | def _InstanceChrootDir(cls, instance_name): |
666 | 547a63b7 | Balazs Lecz | """Returns the name of the KVM chroot dir of the instance
|
667 | 547a63b7 | Balazs Lecz |
|
668 | 547a63b7 | Balazs Lecz | """
|
669 | 547a63b7 | Balazs Lecz | return utils.PathJoin(cls._CHROOT_DIR, instance_name)
|
670 | 547a63b7 | Balazs Lecz | |
671 | 547a63b7 | Balazs Lecz | @classmethod
|
672 | 5d9bfd87 | Apollon Oikonomopoulos | def _InstanceNICDir(cls, instance_name): |
673 | 5d9bfd87 | Apollon Oikonomopoulos | """Returns the name of the directory holding the tap device files for a
|
674 | 5d9bfd87 | Apollon Oikonomopoulos | given instance.
|
675 | 5d9bfd87 | Apollon Oikonomopoulos |
|
676 | 5d9bfd87 | Apollon Oikonomopoulos | """
|
677 | 5d9bfd87 | Apollon Oikonomopoulos | return utils.PathJoin(cls._NICS_DIR, instance_name)
|
678 | 5d9bfd87 | Apollon Oikonomopoulos | |
679 | 5d9bfd87 | Apollon Oikonomopoulos | @classmethod
|
680 | 5d9bfd87 | Apollon Oikonomopoulos | def _InstanceNICFile(cls, instance_name, seq): |
681 | 5d9bfd87 | Apollon Oikonomopoulos | """Returns the name of the file containing the tap device for a given NIC
|
682 | 5d9bfd87 | Apollon Oikonomopoulos |
|
683 | 5d9bfd87 | Apollon Oikonomopoulos | """
|
684 | 5d9bfd87 | Apollon Oikonomopoulos | return utils.PathJoin(cls._InstanceNICDir(instance_name), str(seq)) |
685 | 5d9bfd87 | Apollon Oikonomopoulos | |
686 | 5d9bfd87 | Apollon Oikonomopoulos | @classmethod
|
687 | 4f580fef | Sรฉbastien Bocahu | def _InstanceKeymapFile(cls, instance_name): |
688 | 4f580fef | Sรฉbastien Bocahu | """Returns the name of the file containing the keymap for a given instance
|
689 | 4f580fef | Sรฉbastien Bocahu |
|
690 | 4f580fef | Sรฉbastien Bocahu | """
|
691 | 4f580fef | Sรฉbastien Bocahu | return utils.PathJoin(cls._KEYMAP_DIR, instance_name)
|
692 | 4f580fef | Sรฉbastien Bocahu | |
693 | 4f580fef | Sรฉbastien Bocahu | @classmethod
|
694 | 7548396c | Guido Trotter | def _TryReadUidFile(cls, uid_file): |
695 | 7548396c | Guido Trotter | """Try to read a uid file
|
696 | 7548396c | Guido Trotter |
|
697 | 7548396c | Guido Trotter | """
|
698 | 7548396c | Guido Trotter | if os.path.exists(uid_file):
|
699 | 7548396c | Guido Trotter | try:
|
700 | 682f7601 | Guido Trotter | uid = int(utils.ReadOneLineFile(uid_file))
|
701 | aa0b600b | Guido Trotter | return uid
|
702 | 7548396c | Guido Trotter | except EnvironmentError: |
703 | 7548396c | Guido Trotter | logging.warning("Can't read uid file", exc_info=True) |
704 | 7548396c | Guido Trotter | except (TypeError, ValueError): |
705 | 7548396c | Guido Trotter | logging.warning("Can't parse uid file contents", exc_info=True) |
706 | aa0b600b | Guido Trotter | return None |
707 | 7548396c | Guido Trotter | |
708 | 7548396c | Guido Trotter | @classmethod
|
709 | 7e66c35b | Guido Trotter | def _RemoveInstanceRuntimeFiles(cls, pidfile, instance_name): |
710 | 547a63b7 | Balazs Lecz | """Removes an instance's rutime sockets/files/dirs.
|
711 | 7e66c35b | Guido Trotter |
|
712 | 7e66c35b | Guido Trotter | """
|
713 | 7e66c35b | Guido Trotter | utils.RemoveFile(pidfile) |
714 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceMonitor(instance_name)) |
715 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceSerial(instance_name)) |
716 | 91c10532 | Andrea Spadaccini | utils.RemoveFile(cls._InstanceQmpMonitor(instance_name)) |
717 | 7e66c35b | Guido Trotter | utils.RemoveFile(cls._InstanceKVMRuntime(instance_name)) |
718 | 4f580fef | Sรฉbastien Bocahu | utils.RemoveFile(cls._InstanceKeymapFile(instance_name)) |
719 | 7548396c | Guido Trotter | uid_file = cls._InstanceUidFile(instance_name) |
720 | 7548396c | Guido Trotter | uid = cls._TryReadUidFile(uid_file) |
721 | 7548396c | Guido Trotter | utils.RemoveFile(uid_file) |
722 | 7548396c | Guido Trotter | if uid is not None: |
723 | 7548396c | Guido Trotter | uidpool.ReleaseUid(uid) |
724 | 7be85163 | Guido Trotter | try:
|
725 | 7be85163 | Guido Trotter | shutil.rmtree(cls._InstanceNICDir(instance_name)) |
726 | 7be85163 | Guido Trotter | except OSError, err: |
727 | 7be85163 | Guido Trotter | if err.errno != errno.ENOENT:
|
728 | 7be85163 | Guido Trotter | raise
|
729 | 547a63b7 | Balazs Lecz | try:
|
730 | 547a63b7 | Balazs Lecz | chroot_dir = cls._InstanceChrootDir(instance_name) |
731 | 547a63b7 | Balazs Lecz | utils.RemoveDir(chroot_dir) |
732 | 547a63b7 | Balazs Lecz | except OSError, err: |
733 | 547a63b7 | Balazs Lecz | if err.errno == errno.ENOTEMPTY:
|
734 | 547a63b7 | Balazs Lecz | # The chroot directory is expected to be empty, but it isn't.
|
735 | 547a63b7 | Balazs Lecz | new_chroot_dir = tempfile.mkdtemp(dir=cls._CHROOT_QUARANTINE_DIR, |
736 | 547a63b7 | Balazs Lecz | prefix="%s-%s-" %
|
737 | 547a63b7 | Balazs Lecz | (instance_name, |
738 | 547a63b7 | Balazs Lecz | utils.TimestampForFilename())) |
739 | 547a63b7 | Balazs Lecz | logging.warning("The chroot directory of instance %s can not be"
|
740 | 547a63b7 | Balazs Lecz | " removed as it is not empty. Moving it to the"
|
741 | 547a63b7 | Balazs Lecz | " quarantine instead. Please investigate the"
|
742 | 547a63b7 | Balazs Lecz | " contents (%s) and clean up manually",
|
743 | 547a63b7 | Balazs Lecz | instance_name, new_chroot_dir) |
744 | 547a63b7 | Balazs Lecz | utils.RenameFile(chroot_dir, new_chroot_dir) |
745 | 547a63b7 | Balazs Lecz | else:
|
746 | 547a63b7 | Balazs Lecz | raise
|
747 | 7e66c35b | Guido Trotter | |
748 | 748e4b5a | Michael Hanselmann | @staticmethod
|
749 | 5d9bfd87 | Apollon Oikonomopoulos | def _ConfigureNIC(instance, seq, nic, tap): |
750 | 5d9bfd87 | Apollon Oikonomopoulos | """Run the network configuration script for a specified NIC
|
751 | eb58f9b1 | Guido Trotter |
|
752 | eb58f9b1 | Guido Trotter | @param instance: instance we're acting on
|
753 | eb58f9b1 | Guido Trotter | @type instance: instance object
|
754 | eb58f9b1 | Guido Trotter | @param seq: nic sequence number
|
755 | eb58f9b1 | Guido Trotter | @type seq: int
|
756 | eb58f9b1 | Guido Trotter | @param nic: nic we're acting on
|
757 | eb58f9b1 | Guido Trotter | @type nic: nic object
|
758 | 5d9bfd87 | Apollon Oikonomopoulos | @param tap: the host's tap interface this NIC corresponds to
|
759 | 5d9bfd87 | Apollon Oikonomopoulos | @type tap: str
|
760 | eb58f9b1 | Guido Trotter |
|
761 | eb58f9b1 | Guido Trotter | """
|
762 | 5d9bfd87 | Apollon Oikonomopoulos | if instance.tags:
|
763 | 5d9bfd87 | Apollon Oikonomopoulos | tags = " ".join(instance.tags)
|
764 | 5d9bfd87 | Apollon Oikonomopoulos | else:
|
765 | 5d9bfd87 | Apollon Oikonomopoulos | tags = ""
|
766 | 5d9bfd87 | Apollon Oikonomopoulos | |
767 | 5d9bfd87 | Apollon Oikonomopoulos | env = { |
768 | 5d9bfd87 | Apollon Oikonomopoulos | "PATH": "%s:/sbin:/usr/sbin" % os.environ["PATH"], |
769 | 5d9bfd87 | Apollon Oikonomopoulos | "INSTANCE": instance.name,
|
770 | 5d9bfd87 | Apollon Oikonomopoulos | "MAC": nic.mac,
|
771 | 5d9bfd87 | Apollon Oikonomopoulos | "MODE": nic.nicparams[constants.NIC_MODE],
|
772 | 5d9bfd87 | Apollon Oikonomopoulos | "INTERFACE": tap,
|
773 | 5d9bfd87 | Apollon Oikonomopoulos | "INTERFACE_INDEX": str(seq), |
774 | 5d9bfd87 | Apollon Oikonomopoulos | "TAGS": tags,
|
775 | 5d9bfd87 | Apollon Oikonomopoulos | } |
776 | 5d9bfd87 | Apollon Oikonomopoulos | |
777 | 5d9bfd87 | Apollon Oikonomopoulos | if nic.ip:
|
778 | 5d9bfd87 | Apollon Oikonomopoulos | env["IP"] = nic.ip
|
779 | 5d9bfd87 | Apollon Oikonomopoulos | |
780 | 5d9bfd87 | Apollon Oikonomopoulos | if nic.nicparams[constants.NIC_LINK]:
|
781 | 5d9bfd87 | Apollon Oikonomopoulos | env["LINK"] = nic.nicparams[constants.NIC_LINK]
|
782 | 5d9bfd87 | Apollon Oikonomopoulos | |
783 | 8c4771b1 | Dimitris Aragiorgis | def _BuildNetworkEnv(name, network, gateway, network6, gateway6, |
784 | 8c4771b1 | Dimitris Aragiorgis | network_type, mac_prefix, tags, env): |
785 | 8c4771b1 | Dimitris Aragiorgis | if name:
|
786 | 8c4771b1 | Dimitris Aragiorgis | env["NETWORK_NAME"] = name
|
787 | 8c4771b1 | Dimitris Aragiorgis | if network:
|
788 | 8c4771b1 | Dimitris Aragiorgis | env["NETWORK_SUBNET"] = network
|
789 | 8c4771b1 | Dimitris Aragiorgis | if gateway:
|
790 | 8c4771b1 | Dimitris Aragiorgis | env["NETWORK_GATEWAY"] = gateway
|
791 | 8c4771b1 | Dimitris Aragiorgis | if network6:
|
792 | 8c4771b1 | Dimitris Aragiorgis | env["NETWORK_SUBNET6"] = network6
|
793 | 8c4771b1 | Dimitris Aragiorgis | if gateway6:
|
794 | 8c4771b1 | Dimitris Aragiorgis | env["NETWORK_GATEWAY6"] = gateway6
|
795 | 8c4771b1 | Dimitris Aragiorgis | if mac_prefix:
|
796 | 8c4771b1 | Dimitris Aragiorgis | env["NETWORK_MAC_PREFIX"] = mac_prefix
|
797 | 8c4771b1 | Dimitris Aragiorgis | if network_type:
|
798 | 8c4771b1 | Dimitris Aragiorgis | env["NETWORK_TYPE"] = network_type
|
799 | 8c4771b1 | Dimitris Aragiorgis | if tags:
|
800 | 8c4771b1 | Dimitris Aragiorgis | env["NETWORK_TAGS"] = " ".join(tags) |
801 | 8c4771b1 | Dimitris Aragiorgis | |
802 | 8c4771b1 | Dimitris Aragiorgis | return env
|
803 | 8c4771b1 | Dimitris Aragiorgis | |
804 | 8c4771b1 | Dimitris Aragiorgis | |
805 | d45473fb | Dimitris Aragiorgis | if nic.network:
|
806 | 8c4771b1 | Dimitris Aragiorgis | n = objects.Network.FromDict(nic.netinfo) |
807 | 8c4771b1 | Dimitris Aragiorgis | _BuildNetworkEnv(nic.network, n.network, n.gateway, |
808 | 8c4771b1 | Dimitris Aragiorgis | n.network6, n.gateway6, n.network_type, |
809 | 8c4771b1 | Dimitris Aragiorgis | n.mac_prefix, n.tags, env) |
810 | d45473fb | Dimitris Aragiorgis | |
811 | 5d9bfd87 | Apollon Oikonomopoulos | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
812 | 5d9bfd87 | Apollon Oikonomopoulos | env["BRIDGE"] = nic.nicparams[constants.NIC_LINK]
|
813 | 5d9bfd87 | Apollon Oikonomopoulos | |
814 | 5d9bfd87 | Apollon Oikonomopoulos | result = utils.RunCmd([constants.KVM_IFUP, tap], env=env) |
815 | 5d9bfd87 | Apollon Oikonomopoulos | if result.failed:
|
816 | 5d9bfd87 | Apollon Oikonomopoulos | raise errors.HypervisorError("Failed to configure interface %s: %s." |
817 | 5d9bfd87 | Apollon Oikonomopoulos | " Network configuration script output: %s" %
|
818 | 5d9bfd87 | Apollon Oikonomopoulos | (tap, result.fail_reason, result.output)) |
819 | eb58f9b1 | Guido Trotter | |
820 | b693125f | Tsachy Shacham | @staticmethod
|
821 | b693125f | Tsachy Shacham | def _VerifyAffinityPackage(): |
822 | b693125f | Tsachy Shacham | if affinity is None: |
823 | b693125f | Tsachy Shacham | raise errors.HypervisorError("affinity Python package not" |
824 | b693125f | Tsachy Shacham | " found; cannot use CPU pinning under KVM")
|
825 | b693125f | Tsachy Shacham | |
826 | b693125f | Tsachy Shacham | @staticmethod
|
827 | b693125f | Tsachy Shacham | def _BuildAffinityCpuMask(cpu_list): |
828 | b693125f | Tsachy Shacham | """Create a CPU mask suitable for sched_setaffinity from a list of
|
829 | b693125f | Tsachy Shacham | CPUs.
|
830 | b693125f | Tsachy Shacham |
|
831 | b693125f | Tsachy Shacham | See man taskset for more info on sched_setaffinity masks.
|
832 | b693125f | Tsachy Shacham | For example: [ 0, 2, 5, 6 ] will return 101 (0x65, 0..01100101).
|
833 | b693125f | Tsachy Shacham |
|
834 | b693125f | Tsachy Shacham | @type cpu_list: list of int
|
835 | b693125f | Tsachy Shacham | @param cpu_list: list of physical CPU numbers to map to vCPUs in order
|
836 | b693125f | Tsachy Shacham | @rtype: int
|
837 | b693125f | Tsachy Shacham | @return: a bit mask of CPU affinities
|
838 | b693125f | Tsachy Shacham |
|
839 | b693125f | Tsachy Shacham | """
|
840 | b693125f | Tsachy Shacham | if cpu_list == constants.CPU_PINNING_OFF:
|
841 | b693125f | Tsachy Shacham | return constants.CPU_PINNING_ALL_KVM
|
842 | b693125f | Tsachy Shacham | else:
|
843 | b693125f | Tsachy Shacham | return sum(2 ** cpu for cpu in cpu_list) |
844 | b693125f | Tsachy Shacham | |
845 | b693125f | Tsachy Shacham | @classmethod
|
846 | b693125f | Tsachy Shacham | def _AssignCpuAffinity(cls, cpu_mask, process_id, thread_dict): |
847 | b693125f | Tsachy Shacham | """Change CPU affinity for running VM according to given CPU mask.
|
848 | b693125f | Tsachy Shacham |
|
849 | b693125f | Tsachy Shacham | @param cpu_mask: CPU mask as given by the user. e.g. "0-2,4:all:1,3"
|
850 | b693125f | Tsachy Shacham | @type cpu_mask: string
|
851 | b693125f | Tsachy Shacham | @param process_id: process ID of KVM process. Used to pin entire VM
|
852 | b693125f | Tsachy Shacham | to physical CPUs.
|
853 | b693125f | Tsachy Shacham | @type process_id: int
|
854 | b693125f | Tsachy Shacham | @param thread_dict: map of virtual CPUs to KVM thread IDs
|
855 | b693125f | Tsachy Shacham | @type thread_dict: dict int:int
|
856 | b693125f | Tsachy Shacham |
|
857 | b693125f | Tsachy Shacham | """
|
858 | b693125f | Tsachy Shacham | # Convert the string CPU mask to a list of list of int's
|
859 | b693125f | Tsachy Shacham | cpu_list = utils.ParseMultiCpuMask(cpu_mask) |
860 | b693125f | Tsachy Shacham | |
861 | b693125f | Tsachy Shacham | if len(cpu_list) == 1: |
862 | b693125f | Tsachy Shacham | all_cpu_mapping = cpu_list[0]
|
863 | b693125f | Tsachy Shacham | if all_cpu_mapping == constants.CPU_PINNING_OFF:
|
864 | b693125f | Tsachy Shacham | # If CPU pinning has 1 entry that's "all", then do nothing
|
865 | b693125f | Tsachy Shacham | pass
|
866 | b693125f | Tsachy Shacham | else:
|
867 | b693125f | Tsachy Shacham | # If CPU pinning has one non-all entry, map the entire VM to
|
868 | b693125f | Tsachy Shacham | # one set of physical CPUs
|
869 | b693125f | Tsachy Shacham | cls._VerifyAffinityPackage() |
870 | b693125f | Tsachy Shacham | affinity.set_process_affinity_mask(process_id, |
871 | b693125f | Tsachy Shacham | cls._BuildAffinityCpuMask(all_cpu_mapping)) |
872 | b693125f | Tsachy Shacham | else:
|
873 | b693125f | Tsachy Shacham | # The number of vCPUs mapped should match the number of vCPUs
|
874 | b693125f | Tsachy Shacham | # reported by KVM. This was already verified earlier, so
|
875 | b693125f | Tsachy Shacham | # here only as a sanity check.
|
876 | b693125f | Tsachy Shacham | assert len(thread_dict) == len(cpu_list) |
877 | b693125f | Tsachy Shacham | cls._VerifyAffinityPackage() |
878 | b693125f | Tsachy Shacham | |
879 | b693125f | Tsachy Shacham | # For each vCPU, map it to the proper list of physical CPUs
|
880 | b693125f | Tsachy Shacham | for vcpu, i in zip(cpu_list, range(len(cpu_list))): |
881 | b693125f | Tsachy Shacham | affinity.set_process_affinity_mask(thread_dict[i], |
882 | b693125f | Tsachy Shacham | cls._BuildAffinityCpuMask(vcpu)) |
883 | b693125f | Tsachy Shacham | |
884 | b693125f | Tsachy Shacham | def _GetVcpuThreadIds(self, instance_name): |
885 | b693125f | Tsachy Shacham | """Get a mapping of vCPU no. to thread IDs for the instance
|
886 | b693125f | Tsachy Shacham |
|
887 | b693125f | Tsachy Shacham | @type instance_name: string
|
888 | b693125f | Tsachy Shacham | @param instance_name: instance in question
|
889 | b693125f | Tsachy Shacham | @rtype: dictionary of int:int
|
890 | b693125f | Tsachy Shacham | @return: a dictionary mapping vCPU numbers to thread IDs
|
891 | b693125f | Tsachy Shacham |
|
892 | b693125f | Tsachy Shacham | """
|
893 | b693125f | Tsachy Shacham | result = {} |
894 | b693125f | Tsachy Shacham | output = self._CallMonitorCommand(instance_name, self._CPU_INFO_CMD) |
895 | b693125f | Tsachy Shacham | for line in output.stdout.splitlines(): |
896 | b693125f | Tsachy Shacham | match = self._CPU_INFO_RE.search(line)
|
897 | b693125f | Tsachy Shacham | if not match: |
898 | b693125f | Tsachy Shacham | continue
|
899 | b693125f | Tsachy Shacham | grp = map(int, match.groups()) |
900 | b693125f | Tsachy Shacham | result[grp[0]] = grp[1] |
901 | b693125f | Tsachy Shacham | |
902 | b693125f | Tsachy Shacham | return result
|
903 | b693125f | Tsachy Shacham | |
904 | 1d8a7812 | Andrea Spadaccini | def _ExecuteCpuAffinity(self, instance_name, cpu_mask): |
905 | 1d8a7812 | Andrea Spadaccini | """Complete CPU pinning.
|
906 | b693125f | Tsachy Shacham |
|
907 | b693125f | Tsachy Shacham | @type instance_name: string
|
908 | b693125f | Tsachy Shacham | @param instance_name: name of instance
|
909 | b693125f | Tsachy Shacham | @type cpu_mask: string
|
910 | b693125f | Tsachy Shacham | @param cpu_mask: CPU pinning mask as entered by user
|
911 | b693125f | Tsachy Shacham |
|
912 | b693125f | Tsachy Shacham | """
|
913 | 1d8a7812 | Andrea Spadaccini | # Get KVM process ID, to be used if need to pin entire VM
|
914 | 1d8a7812 | Andrea Spadaccini | _, pid, _ = self._InstancePidAlive(instance_name)
|
915 | 1d8a7812 | Andrea Spadaccini | # Get vCPU thread IDs, to be used if need to pin vCPUs separately
|
916 | 1d8a7812 | Andrea Spadaccini | thread_dict = self._GetVcpuThreadIds(instance_name)
|
917 | 1d8a7812 | Andrea Spadaccini | # Run CPU pinning, based on configured mask
|
918 | 1d8a7812 | Andrea Spadaccini | self._AssignCpuAffinity(cpu_mask, pid, thread_dict)
|
919 | b693125f | Tsachy Shacham | |
920 | eb58f9b1 | Guido Trotter | def ListInstances(self): |
921 | eb58f9b1 | Guido Trotter | """Get the list of running instances.
|
922 | eb58f9b1 | Guido Trotter |
|
923 | c41eea6e | Iustin Pop | We can do this by listing our live instances directory and
|
924 | c41eea6e | Iustin Pop | checking whether the associated kvm process is still alive.
|
925 | eb58f9b1 | Guido Trotter |
|
926 | eb58f9b1 | Guido Trotter | """
|
927 | eb58f9b1 | Guido Trotter | result = [] |
928 | eb58f9b1 | Guido Trotter | for name in os.listdir(self._PIDS_DIR): |
929 | 263b8de6 | Guido Trotter | if self._InstancePidAlive(name)[2]: |
930 | eb58f9b1 | Guido Trotter | result.append(name) |
931 | eb58f9b1 | Guido Trotter | return result
|
932 | eb58f9b1 | Guido Trotter | |
933 | eb58f9b1 | Guido Trotter | def GetInstanceInfo(self, instance_name): |
934 | eb58f9b1 | Guido Trotter | """Get instance properties.
|
935 | eb58f9b1 | Guido Trotter |
|
936 | 4fbb3c60 | Guido Trotter | @type instance_name: string
|
937 | c41eea6e | Iustin Pop | @param instance_name: the instance name
|
938 | 4fbb3c60 | Guido Trotter | @rtype: tuple of strings
|
939 | 4fbb3c60 | Guido Trotter | @return: (name, id, memory, vcpus, stat, times)
|
940 | eb58f9b1 | Guido Trotter |
|
941 | eb58f9b1 | Guido Trotter | """
|
942 | 1122eb25 | Iustin Pop | _, pid, alive = self._InstancePidAlive(instance_name)
|
943 | 1f8b3a27 | Guido Trotter | if not alive: |
944 | eb58f9b1 | Guido Trotter | return None |
945 | eb58f9b1 | Guido Trotter | |
946 | 263b8de6 | Guido Trotter | _, memory, vcpus = self._InstancePidInfo(pid)
|
947 | fc84cd5d | Guido Trotter | istat = "---b-"
|
948 | eb58f9b1 | Guido Trotter | times = "0"
|
949 | eb58f9b1 | Guido Trotter | |
950 | 89da2ff3 | Guido Trotter | try:
|
951 | 89da2ff3 | Guido Trotter | qmp = QmpConnection(self._InstanceQmpMonitor(instance_name))
|
952 | 89da2ff3 | Guido Trotter | qmp.connect() |
953 | 89da2ff3 | Guido Trotter | vcpus = len(qmp.Execute("query-cpus")[qmp.RETURN_KEY]) |
954 | 89da2ff3 | Guido Trotter | # Will fail if ballooning is not enabled, but we can then just resort to
|
955 | 89da2ff3 | Guido Trotter | # the value above.
|
956 | 89da2ff3 | Guido Trotter | mem_bytes = qmp.Execute("query-balloon")[qmp.RETURN_KEY][qmp.ACTUAL_KEY]
|
957 | 89da2ff3 | Guido Trotter | memory = mem_bytes / 1048576
|
958 | 89da2ff3 | Guido Trotter | except errors.HypervisorError:
|
959 | 89da2ff3 | Guido Trotter | pass
|
960 | 89da2ff3 | Guido Trotter | |
961 | fc84cd5d | Guido Trotter | return (instance_name, pid, memory, vcpus, istat, times)
|
962 | eb58f9b1 | Guido Trotter | |
963 | eb58f9b1 | Guido Trotter | def GetAllInstancesInfo(self): |
964 | eb58f9b1 | Guido Trotter | """Get properties of all instances.
|
965 | eb58f9b1 | Guido Trotter |
|
966 | c41eea6e | Iustin Pop | @return: list of tuples (name, id, memory, vcpus, stat, times)
|
967 | c41eea6e | Iustin Pop |
|
968 | eb58f9b1 | Guido Trotter | """
|
969 | eb58f9b1 | Guido Trotter | data = [] |
970 | eb58f9b1 | Guido Trotter | for name in os.listdir(self._PIDS_DIR): |
971 | 263b8de6 | Guido Trotter | try:
|
972 | 263b8de6 | Guido Trotter | info = self.GetInstanceInfo(name)
|
973 | 263b8de6 | Guido Trotter | except errors.HypervisorError:
|
974 | 3bc145d8 | Bernardo Dal Seno | # Ignore exceptions due to instances being shut down
|
975 | 263b8de6 | Guido Trotter | continue
|
976 | 263b8de6 | Guido Trotter | if info:
|
977 | 263b8de6 | Guido Trotter | data.append(info) |
978 | eb58f9b1 | Guido Trotter | return data
|
979 | eb58f9b1 | Guido Trotter | |
980 | 644e5023 | Dimitris Aragriorgs | def _GenerateKVMBlockDevicesOptions(self, instance, kvm_cmd, block_devices): |
981 | 644e5023 | Dimitris Aragriorgs | |
982 | 644e5023 | Dimitris Aragriorgs | hvp = instance.hvparams |
983 | 644e5023 | Dimitris Aragriorgs | boot_disk = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_DISK |
984 | 644e5023 | Dimitris Aragriorgs | |
985 | 644e5023 | Dimitris Aragriorgs | _, v_major, v_min, _ = self._GetKVMVersion()
|
986 | 644e5023 | Dimitris Aragriorgs | |
987 | 644e5023 | Dimitris Aragriorgs | # whether this is an older KVM version that uses the boot=on flag
|
988 | 644e5023 | Dimitris Aragriorgs | # on devices
|
989 | 644e5023 | Dimitris Aragriorgs | needs_boot_flag = (v_major, v_min) < (0, 14) |
990 | 644e5023 | Dimitris Aragriorgs | |
991 | 644e5023 | Dimitris Aragriorgs | disk_type = hvp[constants.HV_DISK_TYPE] |
992 | 644e5023 | Dimitris Aragriorgs | if disk_type == constants.HT_DISK_PARAVIRTUAL:
|
993 | 644e5023 | Dimitris Aragriorgs | if_val = ",if=virtio"
|
994 | 644e5023 | Dimitris Aragriorgs | if (v_major, v_min) >= (0, 12): |
995 | 644e5023 | Dimitris Aragriorgs | disk_model = "virtio-blk-pci"
|
996 | 644e5023 | Dimitris Aragriorgs | else:
|
997 | 644e5023 | Dimitris Aragriorgs | disk_model = "virtio"
|
998 | 644e5023 | Dimitris Aragriorgs | else:
|
999 | 644e5023 | Dimitris Aragriorgs | if_val = ",if=%s" % disk_type
|
1000 | 644e5023 | Dimitris Aragriorgs | disk_model = disk_type |
1001 | 644e5023 | Dimitris Aragriorgs | # Cache mode
|
1002 | 644e5023 | Dimitris Aragriorgs | disk_cache = hvp[constants.HV_DISK_CACHE] |
1003 | 644e5023 | Dimitris Aragriorgs | if instance.disk_template in constants.DTS_EXT_MIRROR: |
1004 | 644e5023 | Dimitris Aragriorgs | if disk_cache != "none": |
1005 | 644e5023 | Dimitris Aragriorgs | # TODO: make this a hard error, instead of a silent overwrite
|
1006 | 644e5023 | Dimitris Aragriorgs | logging.warning("KVM: overriding disk_cache setting '%s' with 'none'"
|
1007 | 644e5023 | Dimitris Aragriorgs | " to prevent shared storage corruption on migration",
|
1008 | 644e5023 | Dimitris Aragriorgs | disk_cache) |
1009 | 644e5023 | Dimitris Aragriorgs | cache_val = ",cache=none"
|
1010 | 644e5023 | Dimitris Aragriorgs | elif disk_cache != constants.HT_CACHE_DEFAULT:
|
1011 | 644e5023 | Dimitris Aragriorgs | cache_val = ",cache=%s" % disk_cache
|
1012 | 644e5023 | Dimitris Aragriorgs | else:
|
1013 | 644e5023 | Dimitris Aragriorgs | cache_val = ""
|
1014 | 644e5023 | Dimitris Aragriorgs | for cfdev, dev_path in block_devices: |
1015 | 644e5023 | Dimitris Aragriorgs | if cfdev.mode != constants.DISK_RDWR:
|
1016 | 644e5023 | Dimitris Aragriorgs | raise errors.HypervisorError("Instance has read-only disks which" |
1017 | 644e5023 | Dimitris Aragriorgs | " are not supported by KVM")
|
1018 | 644e5023 | Dimitris Aragriorgs | # TODO: handle FD_LOOP and FD_BLKTAP (?)
|
1019 | 644e5023 | Dimitris Aragriorgs | boot_val = ""
|
1020 | 644e5023 | Dimitris Aragriorgs | if boot_disk:
|
1021 | 644e5023 | Dimitris Aragriorgs | kvm_cmd.extend(["-boot", "c"]) |
1022 | 644e5023 | Dimitris Aragriorgs | boot_disk = False
|
1023 | 644e5023 | Dimitris Aragriorgs | if needs_boot_flag and disk_type != constants.HT_DISK_IDE: |
1024 | 644e5023 | Dimitris Aragriorgs | boot_val = ",boot=on"
|
1025 | 644e5023 | Dimitris Aragriorgs | drive_val = "file=%s,format=raw%s%s" % \
|
1026 | 644e5023 | Dimitris Aragriorgs | (dev_path, boot_val, cache_val) |
1027 | 2435f63b | Dimitris Aragiorgis | if cfdev.idx is not None: |
1028 | 644e5023 | Dimitris Aragriorgs | #TODO: name id after model
|
1029 | 2435f63b | Dimitris Aragiorgis | drive_val += (",if=none,id=drive%d" % cfdev.idx)
|
1030 | 2435f63b | Dimitris Aragiorgis | if cfdev.pci is not None: |
1031 | 2435f63b | Dimitris Aragiorgis | drive_val += (",bus=0,unit=%d" % cfdev.pci)
|
1032 | 644e5023 | Dimitris Aragriorgs | else:
|
1033 | 644e5023 | Dimitris Aragriorgs | drive_val += if_val |
1034 | 644e5023 | Dimitris Aragriorgs | |
1035 | 644e5023 | Dimitris Aragriorgs | kvm_cmd.extend(["-drive", drive_val])
|
1036 | 644e5023 | Dimitris Aragriorgs | |
1037 | 2435f63b | Dimitris Aragiorgis | if cfdev.idx is not None: |
1038 | 2435f63b | Dimitris Aragiorgis | dev_val = ("%s,drive=drive%d,id=virtio-blk-pci.%d" %
|
1039 | 2435f63b | Dimitris Aragiorgis | (disk_model, cfdev.idx, cfdev.idx)) |
1040 | 2435f63b | Dimitris Aragiorgis | if cfdev.pci is not None: |
1041 | 2435f63b | Dimitris Aragiorgis | dev_val += ",bus=pci.0,addr=%s" % hex(cfdev.pci) |
1042 | 644e5023 | Dimitris Aragriorgs | kvm_cmd.extend(["-device", dev_val])
|
1043 | 644e5023 | Dimitris Aragriorgs | |
1044 | 644e5023 | Dimitris Aragriorgs | return kvm_cmd
|
1045 | 644e5023 | Dimitris Aragriorgs | |
1046 | 323f9095 | Stephen Shirley | def _GenerateKVMRuntime(self, instance, block_devices, startup_paused): |
1047 | ee5f20b0 | Guido Trotter | """Generate KVM information to start an instance.
|
1048 | eb58f9b1 | Guido Trotter |
|
1049 | 839642c2 | Iustin Pop | @attention: this function must not have any side-effects; for
|
1050 | 839642c2 | Iustin Pop | example, it must not write to the filesystem, or read values
|
1051 | 839642c2 | Iustin Pop | from the current system the are expected to differ between
|
1052 | 839642c2 | Iustin Pop | nodes, since it is only run once at instance startup;
|
1053 | 839642c2 | Iustin Pop | actions/kvm arguments that can vary between systems should be
|
1054 | 839642c2 | Iustin Pop | done in L{_ExecuteKVMRuntime}
|
1055 | 839642c2 | Iustin Pop |
|
1056 | eb58f9b1 | Guido Trotter | """
|
1057 | b6267745 | Andrea Spadaccini | # pylint: disable=R0914,R0915
|
1058 | 440351f8 | Andrea Spadaccini | _, v_major, v_min, _ = self._GetKVMVersion()
|
1059 | 4304964a | Guido Trotter | |
1060 | e687ec01 | Michael Hanselmann | pidfile = self._InstancePidFile(instance.name)
|
1061 | eb58f9b1 | Guido Trotter | kvm = constants.KVM_PATH |
1062 | eb58f9b1 | Guido Trotter | kvm_cmd = [kvm] |
1063 | c6a39fc2 | Guido Trotter | # used just by the vnc server, if enabled
|
1064 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-name", instance.name])
|
1065 | f5a4b9ce | Guido Trotter | kvm_cmd.extend(["-m", instance.beparams[constants.BE_MAXMEM]])
|
1066 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-smp", instance.beparams[constants.BE_VCPUS]])
|
1067 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-pidfile", pidfile])
|
1068 | fcf5b670 | Guido Trotter | kvm_cmd.extend(["-balloon", "virtio"]) |
1069 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-daemonize"])
|
1070 | 6b5605e8 | Iustin Pop | if not instance.hvparams[constants.HV_ACPI]: |
1071 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-no-acpi"])
|
1072 | 990ade2d | Stephen Shirley | if instance.hvparams[constants.HV_REBOOT_BEHAVIOR] == \
|
1073 | 990ade2d | Stephen Shirley | constants.INSTANCE_REBOOT_EXIT: |
1074 | 990ade2d | Stephen Shirley | kvm_cmd.extend(["-no-reboot"])
|
1075 | eb58f9b1 | Guido Trotter | |
1076 | a985b417 | Iustin Pop | hvp = instance.hvparams |
1077 | 2b846304 | Iustin Pop | kernel_path = hvp[constants.HV_KERNEL_PATH] |
1078 | 2b846304 | Iustin Pop | if kernel_path:
|
1079 | 59a5de9e | Dimitris Aragiorgis | boot_cdrom = boot_floppy = boot_network = False
|
1080 | 2b846304 | Iustin Pop | else:
|
1081 | 2b846304 | Iustin Pop | boot_cdrom = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_CDROM |
1082 | 2b846304 | Iustin Pop | boot_floppy = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_FLOPPY |
1083 | 2b846304 | Iustin Pop | boot_network = hvp[constants.HV_BOOT_ORDER] == constants.HT_BO_NETWORK |
1084 | 8745c3d7 | Guido Trotter | |
1085 | b1cb62bd | Andrea Spadaccini | self.ValidateParameters(hvp)
|
1086 | b1cb62bd | Andrea Spadaccini | |
1087 | b693125f | Tsachy Shacham | if startup_paused:
|
1088 | b693125f | Tsachy Shacham | kvm_cmd.extend([_KVM_START_PAUSED_FLAG]) |
1089 | b693125f | Tsachy Shacham | |
1090 | 7ba594c0 | Guido Trotter | if hvp[constants.HV_KVM_FLAG] == constants.HT_KVM_ENABLED:
|
1091 | 7ba594c0 | Guido Trotter | kvm_cmd.extend(["-enable-kvm"])
|
1092 | 7ba594c0 | Guido Trotter | elif hvp[constants.HV_KVM_FLAG] == constants.HT_KVM_DISABLED:
|
1093 | 7ba594c0 | Guido Trotter | kvm_cmd.extend(["-disable-kvm"])
|
1094 | 7ba594c0 | Guido Trotter | |
1095 | 8745c3d7 | Guido Trotter | if boot_network:
|
1096 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-boot", "n"]) |
1097 | 1213604d | Guido Trotter | |
1098 | 24be50e0 | Iustin Pop | # whether this is an older KVM version that uses the boot=on flag
|
1099 | 24be50e0 | Iustin Pop | # on devices
|
1100 | 24be50e0 | Iustin Pop | needs_boot_flag = (v_major, v_min) < (0, 14) |
1101 | 24be50e0 | Iustin Pop | |
1102 | a985b417 | Iustin Pop | disk_type = hvp[constants.HV_DISK_TYPE] |
1103 | 644e5023 | Dimitris Aragriorgs | if not instance.hotplug_info: |
1104 | 644e5023 | Dimitris Aragriorgs | kvm_cmd = self._GenerateKVMBlockDevicesOptions(instance, kvm_cmd,
|
1105 | 644e5023 | Dimitris Aragriorgs | block_devices) |
1106 | eb58f9b1 | Guido Trotter | |
1107 | cc130cc7 | Marco Casavecchia | #Now we can specify a different device type for CDROM devices.
|
1108 | cc130cc7 | Marco Casavecchia | cdrom_disk_type = hvp[constants.HV_KVM_CDROM_DISK_TYPE] |
1109 | cc130cc7 | Marco Casavecchia | if not cdrom_disk_type: |
1110 | cc130cc7 | Marco Casavecchia | cdrom_disk_type = disk_type |
1111 | cc130cc7 | Marco Casavecchia | |
1112 | a985b417 | Iustin Pop | iso_image = hvp[constants.HV_CDROM_IMAGE_PATH] |
1113 | 66d5dbef | Guido Trotter | if iso_image:
|
1114 | d0c8c01d | Iustin Pop | options = ",format=raw,media=cdrom"
|
1115 | 24be50e0 | Iustin Pop | # set cdrom 'if' type
|
1116 | 66d5dbef | Guido Trotter | if boot_cdrom:
|
1117 | 24be50e0 | Iustin Pop | actual_cdrom_type = constants.HT_DISK_IDE |
1118 | 24be50e0 | Iustin Pop | elif cdrom_disk_type == constants.HT_DISK_PARAVIRTUAL:
|
1119 | 24be50e0 | Iustin Pop | actual_cdrom_type = "virtio"
|
1120 | 9dd363eb | Guido Trotter | else:
|
1121 | 24be50e0 | Iustin Pop | actual_cdrom_type = cdrom_disk_type |
1122 | 24be50e0 | Iustin Pop | if_val = ",if=%s" % actual_cdrom_type
|
1123 | 24be50e0 | Iustin Pop | # set boot flag, if needed
|
1124 | 24be50e0 | Iustin Pop | boot_val = ""
|
1125 | 24be50e0 | Iustin Pop | if boot_cdrom:
|
1126 | 24be50e0 | Iustin Pop | kvm_cmd.extend(["-boot", "d"]) |
1127 | 24be50e0 | Iustin Pop | if needs_boot_flag:
|
1128 | 24be50e0 | Iustin Pop | boot_val = ",boot=on"
|
1129 | 24be50e0 | Iustin Pop | # and finally build the entire '-drive' value
|
1130 | 24be50e0 | Iustin Pop | drive_val = "file=%s%s%s%s" % (iso_image, options, if_val, boot_val)
|
1131 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-drive", drive_val])
|
1132 | 66d5dbef | Guido Trotter | |
1133 | cc130cc7 | Marco Casavecchia | iso_image2 = hvp[constants.HV_KVM_CDROM2_IMAGE_PATH] |
1134 | cc130cc7 | Marco Casavecchia | if iso_image2:
|
1135 | d0c8c01d | Iustin Pop | options = ",format=raw,media=cdrom"
|
1136 | cc130cc7 | Marco Casavecchia | if cdrom_disk_type == constants.HT_DISK_PARAVIRTUAL:
|
1137 | d0c8c01d | Iustin Pop | if_val = ",if=virtio"
|
1138 | cc130cc7 | Marco Casavecchia | else:
|
1139 | d0c8c01d | Iustin Pop | if_val = ",if=%s" % cdrom_disk_type
|
1140 | 24be50e0 | Iustin Pop | drive_val = "file=%s%s%s" % (iso_image2, options, if_val)
|
1141 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-drive", drive_val])
|
1142 | cc130cc7 | Marco Casavecchia | |
1143 | cc130cc7 | Marco Casavecchia | floppy_image = hvp[constants.HV_KVM_FLOPPY_IMAGE_PATH] |
1144 | cc130cc7 | Marco Casavecchia | if floppy_image:
|
1145 | d0c8c01d | Iustin Pop | options = ",format=raw,media=disk"
|
1146 | cc130cc7 | Marco Casavecchia | if boot_floppy:
|
1147 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-boot", "a"]) |
1148 | d0c8c01d | Iustin Pop | options = "%s,boot=on" % options
|
1149 | d0c8c01d | Iustin Pop | if_val = ",if=floppy"
|
1150 | d0c8c01d | Iustin Pop | options = "%s%s" % (options, if_val)
|
1151 | d0c8c01d | Iustin Pop | drive_val = "file=%s%s" % (floppy_image, options)
|
1152 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-drive", drive_val])
|
1153 | cc130cc7 | Marco Casavecchia | |
1154 | df5ab9f0 | Guido Trotter | if kernel_path:
|
1155 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-kernel", kernel_path])
|
1156 | a985b417 | Iustin Pop | initrd_path = hvp[constants.HV_INITRD_PATH] |
1157 | df5ab9f0 | Guido Trotter | if initrd_path:
|
1158 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-initrd", initrd_path])
|
1159 | d0c8c01d | Iustin Pop | root_append = ["root=%s" % hvp[constants.HV_ROOT_PATH],
|
1160 | 07813a9e | Iustin Pop | hvp[constants.HV_KERNEL_ARGS]] |
1161 | 07813a9e | Iustin Pop | if hvp[constants.HV_SERIAL_CONSOLE]:
|
1162 | d0c8c01d | Iustin Pop | root_append.append("console=ttyS0,38400")
|
1163 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-append", " ".join(root_append)]) |
1164 | eb58f9b1 | Guido Trotter | |
1165 | 4f958b0b | Miguel Di Ciurcio Filho | mem_path = hvp[constants.HV_MEM_PATH] |
1166 | 4f958b0b | Miguel Di Ciurcio Filho | if mem_path:
|
1167 | 9d3015f9 | Guido Trotter | kvm_cmd.extend(["-mem-path", mem_path, "-mem-prealloc"]) |
1168 | 4f958b0b | Miguel Di Ciurcio Filho | |
1169 | 596b2459 | Guido Trotter | monitor_dev = ("unix:%s,server,nowait" %
|
1170 | 596b2459 | Guido Trotter | self._InstanceMonitor(instance.name))
|
1171 | 596b2459 | Guido Trotter | kvm_cmd.extend(["-monitor", monitor_dev])
|
1172 | 596b2459 | Guido Trotter | if hvp[constants.HV_SERIAL_CONSOLE]:
|
1173 | 596b2459 | Guido Trotter | serial_dev = ("unix:%s,server,nowait" %
|
1174 | 596b2459 | Guido Trotter | self._InstanceSerial(instance.name))
|
1175 | 596b2459 | Guido Trotter | kvm_cmd.extend(["-serial", serial_dev])
|
1176 | 596b2459 | Guido Trotter | else:
|
1177 | 596b2459 | Guido Trotter | kvm_cmd.extend(["-serial", "none"]) |
1178 | 596b2459 | Guido Trotter | |
1179 | a985b417 | Iustin Pop | mouse_type = hvp[constants.HV_USB_MOUSE] |
1180 | 31f6f67a | Guido Trotter | vnc_bind_address = hvp[constants.HV_VNC_BIND_ADDRESS] |
1181 | 596b2459 | Guido Trotter | spice_bind = hvp[constants.HV_KVM_SPICE_BIND] |
1182 | 596b2459 | Guido Trotter | spice_ip_version = None
|
1183 | 31f6f67a | Guido Trotter | |
1184 | 11344a50 | Guido Trotter | if mouse_type:
|
1185 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-usb"])
|
1186 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-usbdevice", mouse_type])
|
1187 | 31f6f67a | Guido Trotter | elif vnc_bind_address:
|
1188 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-usbdevice", constants.HT_MOUSE_TABLET])
|
1189 | 11344a50 | Guido Trotter | |
1190 | 8470c8db | Guido Trotter | if vnc_bind_address:
|
1191 | 8b312c1d | Manuel Franceschini | if netutils.IP4Address.IsValid(vnc_bind_address):
|
1192 | 377d74c9 | Guido Trotter | if instance.network_port > constants.VNC_BASE_PORT:
|
1193 | 377d74c9 | Guido Trotter | display = instance.network_port - constants.VNC_BASE_PORT |
1194 | 14f5f1b6 | Manuel Franceschini | if vnc_bind_address == constants.IP4_ADDRESS_ANY:
|
1195 | d0c8c01d | Iustin Pop | vnc_arg = ":%d" % (display)
|
1196 | 8447f52b | Guido Trotter | else:
|
1197 | d0c8c01d | Iustin Pop | vnc_arg = "%s:%d" % (vnc_bind_address, display)
|
1198 | 8470c8db | Guido Trotter | else:
|
1199 | 8447f52b | Guido Trotter | logging.error("Network port is not a valid VNC display (%d < %d)."
|
1200 | 07b8a2b5 | Iustin Pop | " Not starting VNC", instance.network_port,
|
1201 | 07b8a2b5 | Iustin Pop | constants.VNC_BASE_PORT) |
1202 | d0c8c01d | Iustin Pop | vnc_arg = "none"
|
1203 | 8b2d1013 | Guido Trotter | |
1204 | 8b2d1013 | Guido Trotter | # Only allow tls and other option when not binding to a file, for now.
|
1205 | 8b2d1013 | Guido Trotter | # kvm/qemu gets confused otherwise about the filename to use.
|
1206 | d0c8c01d | Iustin Pop | vnc_append = ""
|
1207 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_TLS]:
|
1208 | d0c8c01d | Iustin Pop | vnc_append = "%s,tls" % vnc_append
|
1209 | a985b417 | Iustin Pop | if hvp[constants.HV_VNC_X509_VERIFY]:
|
1210 | d0c8c01d | Iustin Pop | vnc_append = "%s,x509verify=%s" % (vnc_append,
|
1211 | a985b417 | Iustin Pop | hvp[constants.HV_VNC_X509]) |
1212 | a985b417 | Iustin Pop | elif hvp[constants.HV_VNC_X509]:
|
1213 | d0c8c01d | Iustin Pop | vnc_append = "%s,x509=%s" % (vnc_append,
|
1214 | a985b417 | Iustin Pop | hvp[constants.HV_VNC_X509]) |
1215 | 6e6bb8d5 | Guido Trotter | if hvp[constants.HV_VNC_PASSWORD_FILE]:
|
1216 | d0c8c01d | Iustin Pop | vnc_append = "%s,password" % vnc_append
|
1217 | 6e6bb8d5 | Guido Trotter | |
1218 | d0c8c01d | Iustin Pop | vnc_arg = "%s%s" % (vnc_arg, vnc_append)
|
1219 | 8b2d1013 | Guido Trotter | |
1220 | 8470c8db | Guido Trotter | else:
|
1221 | d0c8c01d | Iustin Pop | vnc_arg = "unix:%s/%s.vnc" % (vnc_bind_address, instance.name)
|
1222 | 8b2d1013 | Guido Trotter | |
1223 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-vnc", vnc_arg])
|
1224 | 596b2459 | Guido Trotter | elif spice_bind:
|
1225 | 839642c2 | Iustin Pop | # FIXME: this is wrong here; the iface ip address differs
|
1226 | 839642c2 | Iustin Pop | # between systems, so it should be done in _ExecuteKVMRuntime
|
1227 | b1cb62bd | Andrea Spadaccini | if netutils.IsValidInterface(spice_bind):
|
1228 | b1cb62bd | Andrea Spadaccini | # The user specified a network interface, we have to figure out the IP
|
1229 | b1cb62bd | Andrea Spadaccini | # address.
|
1230 | b1cb62bd | Andrea Spadaccini | addresses = netutils.GetInterfaceIpAddresses(spice_bind) |
1231 | b1cb62bd | Andrea Spadaccini | spice_ip_version = hvp[constants.HV_KVM_SPICE_IP_VERSION] |
1232 | b1cb62bd | Andrea Spadaccini | |
1233 | b1cb62bd | Andrea Spadaccini | # if the user specified an IP version and the interface does not
|
1234 | b1cb62bd | Andrea Spadaccini | # have that kind of IP addresses, throw an exception
|
1235 | b1cb62bd | Andrea Spadaccini | if spice_ip_version != constants.IFACE_NO_IP_VERSION_SPECIFIED:
|
1236 | b1cb62bd | Andrea Spadaccini | if not addresses[spice_ip_version]: |
1237 | b1cb62bd | Andrea Spadaccini | raise errors.HypervisorError("spice: unable to get an IPv%s address" |
1238 | b1cb62bd | Andrea Spadaccini | " for %s" % (spice_ip_version,
|
1239 | b1cb62bd | Andrea Spadaccini | spice_bind)) |
1240 | b1cb62bd | Andrea Spadaccini | |
1241 | b1cb62bd | Andrea Spadaccini | # the user did not specify an IP version, we have to figure it out
|
1242 | b1cb62bd | Andrea Spadaccini | elif (addresses[constants.IP4_VERSION] and |
1243 | b1cb62bd | Andrea Spadaccini | addresses[constants.IP6_VERSION]): |
1244 | b1cb62bd | Andrea Spadaccini | # we have both ipv4 and ipv6, let's use the cluster default IP
|
1245 | b1cb62bd | Andrea Spadaccini | # version
|
1246 | b1cb62bd | Andrea Spadaccini | cluster_family = ssconf.SimpleStore().GetPrimaryIPFamily() |
1247 | 65107a2f | Michael Hanselmann | spice_ip_version = \ |
1248 | 65107a2f | Michael Hanselmann | netutils.IPAddress.GetVersionFromAddressFamily(cluster_family) |
1249 | b1cb62bd | Andrea Spadaccini | elif addresses[constants.IP4_VERSION]:
|
1250 | b1cb62bd | Andrea Spadaccini | spice_ip_version = constants.IP4_VERSION |
1251 | b845c8a1 | Andrea Spadaccini | elif addresses[constants.IP6_VERSION]:
|
1252 | b1cb62bd | Andrea Spadaccini | spice_ip_version = constants.IP6_VERSION |
1253 | b845c8a1 | Andrea Spadaccini | else:
|
1254 | b845c8a1 | Andrea Spadaccini | raise errors.HypervisorError("spice: unable to get an IP address" |
1255 | b845c8a1 | Andrea Spadaccini | " for %s" % (spice_bind))
|
1256 | b1cb62bd | Andrea Spadaccini | |
1257 | b1cb62bd | Andrea Spadaccini | spice_address = addresses[spice_ip_version][0]
|
1258 | b1cb62bd | Andrea Spadaccini | |
1259 | b1cb62bd | Andrea Spadaccini | else:
|
1260 | b1cb62bd | Andrea Spadaccini | # spice_bind is known to be a valid IP address, because
|
1261 | b1cb62bd | Andrea Spadaccini | # ValidateParameters checked it.
|
1262 | b1cb62bd | Andrea Spadaccini | spice_address = spice_bind |
1263 | b1cb62bd | Andrea Spadaccini | |
1264 | bfe86c76 | Andrea Spadaccini | spice_arg = "addr=%s" % spice_address
|
1265 | bfe86c76 | Andrea Spadaccini | if hvp[constants.HV_KVM_SPICE_USE_TLS]:
|
1266 | bfe86c76 | Andrea Spadaccini | spice_arg = "%s,tls-port=%s,x509-cacert-file=%s" % (spice_arg,
|
1267 | bfe86c76 | Andrea Spadaccini | instance.network_port, constants.SPICE_CACERT_FILE) |
1268 | bfe86c76 | Andrea Spadaccini | spice_arg = "%s,x509-key-file=%s,x509-cert-file=%s" % (spice_arg,
|
1269 | bfe86c76 | Andrea Spadaccini | constants.SPICE_CERT_FILE, constants.SPICE_CERT_FILE) |
1270 | 3e40b587 | Andrea Spadaccini | tls_ciphers = hvp[constants.HV_KVM_SPICE_TLS_CIPHERS] |
1271 | 3e40b587 | Andrea Spadaccini | if tls_ciphers:
|
1272 | 3e40b587 | Andrea Spadaccini | spice_arg = "%s,tls-ciphers=%s" % (spice_arg, tls_ciphers)
|
1273 | bfe86c76 | Andrea Spadaccini | else:
|
1274 | bfe86c76 | Andrea Spadaccini | spice_arg = "%s,port=%s" % (spice_arg, instance.network_port)
|
1275 | bfe86c76 | Andrea Spadaccini | |
1276 | b451c4c7 | Andrea Spadaccini | if not hvp[constants.HV_KVM_SPICE_PASSWORD_FILE]: |
1277 | b451c4c7 | Andrea Spadaccini | spice_arg = "%s,disable-ticketing" % spice_arg
|
1278 | b451c4c7 | Andrea Spadaccini | |
1279 | 11ae7a0a | Andrea Spadaccini | if spice_ip_version:
|
1280 | 11ae7a0a | Andrea Spadaccini | spice_arg = "%s,ipv%s" % (spice_arg, spice_ip_version)
|
1281 | b1cb62bd | Andrea Spadaccini | |
1282 | ea064d24 | Andrea Spadaccini | # Image compression options
|
1283 | ea064d24 | Andrea Spadaccini | img_lossless = hvp[constants.HV_KVM_SPICE_LOSSLESS_IMG_COMPR] |
1284 | ea064d24 | Andrea Spadaccini | img_jpeg = hvp[constants.HV_KVM_SPICE_JPEG_IMG_COMPR] |
1285 | ea064d24 | Andrea Spadaccini | img_zlib_glz = hvp[constants.HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR] |
1286 | ea064d24 | Andrea Spadaccini | if img_lossless:
|
1287 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,image-compression=%s" % (spice_arg, img_lossless)
|
1288 | ea064d24 | Andrea Spadaccini | if img_jpeg:
|
1289 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,jpeg-wan-compression=%s" % (spice_arg, img_jpeg)
|
1290 | ea064d24 | Andrea Spadaccini | if img_zlib_glz:
|
1291 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,zlib-glz-wan-compression=%s" % (spice_arg, img_zlib_glz)
|
1292 | ea064d24 | Andrea Spadaccini | |
1293 | ea064d24 | Andrea Spadaccini | # Video stream detection
|
1294 | ea064d24 | Andrea Spadaccini | video_streaming = hvp[constants.HV_KVM_SPICE_STREAMING_VIDEO_DETECTION] |
1295 | ea064d24 | Andrea Spadaccini | if video_streaming:
|
1296 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,streaming-video=%s" % (spice_arg, video_streaming)
|
1297 | ea064d24 | Andrea Spadaccini | |
1298 | ea064d24 | Andrea Spadaccini | # Audio compression, by default in qemu-kvm it is on
|
1299 | ea064d24 | Andrea Spadaccini | if not hvp[constants.HV_KVM_SPICE_AUDIO_COMPR]: |
1300 | ea064d24 | Andrea Spadaccini | spice_arg = "%s,playback-compression=off" % spice_arg
|
1301 | 3e40b587 | Andrea Spadaccini | if not hvp[constants.HV_KVM_SPICE_USE_VDAGENT]: |
1302 | 3e40b587 | Andrea Spadaccini | spice_arg = "%s,agent-mouse=off" % spice_arg
|
1303 | 447af814 | Nikos Skalkotos | else:
|
1304 | 447af814 | Nikos Skalkotos | # Enable the spice agent communication channel between the host and the
|
1305 | 447af814 | Nikos Skalkotos | # agent.
|
1306 | 447af814 | Nikos Skalkotos | kvm_cmd.extend(["-device", "virtio-serial-pci"]) |
1307 | 447af814 | Nikos Skalkotos | kvm_cmd.extend(["-device", "virtserialport,chardev=spicechannel0," |
1308 | 447af814 | Nikos Skalkotos | "name=com.redhat.spice.0"])
|
1309 | 447af814 | Nikos Skalkotos | kvm_cmd.extend(["-chardev", "spicevmc,id=spicechannel0,name=vdagent"]) |
1310 | ea064d24 | Andrea Spadaccini | |
1311 | b1cb62bd | Andrea Spadaccini | logging.info("KVM: SPICE will listen on port %s", instance.network_port)
|
1312 | b1cb62bd | Andrea Spadaccini | kvm_cmd.extend(["-spice", spice_arg])
|
1313 | b1cb62bd | Andrea Spadaccini | |
1314 | 2ebdfbb5 | Andrea Spadaccini | # Tell kvm to use the paravirtualized graphic card, optimized for SPICE
|
1315 | 2ebdfbb5 | Andrea Spadaccini | kvm_cmd.extend(["-vga", "qxl"]) |
1316 | 2ebdfbb5 | Andrea Spadaccini | |
1317 | 596b2459 | Guido Trotter | else:
|
1318 | 596b2459 | Guido Trotter | kvm_cmd.extend(["-nographic"])
|
1319 | 596b2459 | Guido Trotter | |
1320 | 6b970cef | Jun Futagawa | if hvp[constants.HV_USE_LOCALTIME]:
|
1321 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-localtime"])
|
1322 | 6b970cef | Jun Futagawa | |
1323 | 547a63b7 | Balazs Lecz | if hvp[constants.HV_KVM_USE_CHROOT]:
|
1324 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-chroot", self._InstanceChrootDir(instance.name)]) |
1325 | 547a63b7 | Balazs Lecz | |
1326 | ee5f20b0 | Guido Trotter | # Save the current instance nics, but defer their expansion as parameters,
|
1327 | ee5f20b0 | Guido Trotter | # as we'll need to generate executable temp files for them.
|
1328 | ee5f20b0 | Guido Trotter | kvm_nics = instance.nics |
1329 | a985b417 | Iustin Pop | hvparams = hvp |
1330 | ee5f20b0 | Guido Trotter | |
1331 | 644e5023 | Dimitris Aragriorgs | if instance.hotplug_info:
|
1332 | 644e5023 | Dimitris Aragriorgs | return (kvm_cmd, kvm_nics, hvparams, block_devices)
|
1333 | 644e5023 | Dimitris Aragriorgs | else:
|
1334 | 644e5023 | Dimitris Aragriorgs | return (kvm_cmd, kvm_nics, hvparams)
|
1335 | ee5f20b0 | Guido Trotter | |
1336 | 38e250ba | Guido Trotter | def _WriteKVMRuntime(self, instance_name, data): |
1337 | 38e250ba | Guido Trotter | """Write an instance's KVM runtime
|
1338 | 38e250ba | Guido Trotter |
|
1339 | 38e250ba | Guido Trotter | """
|
1340 | 38e250ba | Guido Trotter | try:
|
1341 | 38e250ba | Guido Trotter | utils.WriteFile(self._InstanceKVMRuntime(instance_name),
|
1342 | 38e250ba | Guido Trotter | data=data) |
1343 | 90c024f6 | Guido Trotter | except EnvironmentError, err: |
1344 | 38e250ba | Guido Trotter | raise errors.HypervisorError("Failed to save KVM runtime file: %s" % err) |
1345 | 38e250ba | Guido Trotter | |
1346 | 38e250ba | Guido Trotter | def _ReadKVMRuntime(self, instance_name): |
1347 | 38e250ba | Guido Trotter | """Read an instance's KVM runtime
|
1348 | 38e250ba | Guido Trotter |
|
1349 | 38e250ba | Guido Trotter | """
|
1350 | 38e250ba | Guido Trotter | try:
|
1351 | 38e250ba | Guido Trotter | file_content = utils.ReadFile(self._InstanceKVMRuntime(instance_name))
|
1352 | 90c024f6 | Guido Trotter | except EnvironmentError, err: |
1353 | 38e250ba | Guido Trotter | raise errors.HypervisorError("Failed to load KVM runtime file: %s" % err) |
1354 | 38e250ba | Guido Trotter | return file_content
|
1355 | 38e250ba | Guido Trotter | |
1356 | 38e250ba | Guido Trotter | def _SaveKVMRuntime(self, instance, kvm_runtime): |
1357 | 38e250ba | Guido Trotter | """Save an instance's KVM runtime
|
1358 | 38e250ba | Guido Trotter |
|
1359 | 38e250ba | Guido Trotter | """
|
1360 | 644e5023 | Dimitris Aragriorgs | if instance.hotplug_info:
|
1361 | 644e5023 | Dimitris Aragriorgs | kvm_cmd, kvm_nics, hvparams, block_devices = kvm_runtime |
1362 | 644e5023 | Dimitris Aragriorgs | serialized_blockdevs = [(blk.ToDict(), link) |
1363 | 644e5023 | Dimitris Aragriorgs | for blk,link in block_devices] |
1364 | 644e5023 | Dimitris Aragriorgs | else:
|
1365 | 644e5023 | Dimitris Aragriorgs | kvm_cmd, kvm_nics, hvparams = kvm_runtime |
1366 | 644e5023 | Dimitris Aragriorgs | |
1367 | 38e250ba | Guido Trotter | serialized_nics = [nic.ToDict() for nic in kvm_nics] |
1368 | 644e5023 | Dimitris Aragriorgs | |
1369 | 644e5023 | Dimitris Aragriorgs | if instance.hotplug_info:
|
1370 | 644e5023 | Dimitris Aragriorgs | serialized_form = serializer.Dump((kvm_cmd, serialized_nics, |
1371 | 644e5023 | Dimitris Aragriorgs | hvparams, serialized_blockdevs)) |
1372 | 644e5023 | Dimitris Aragriorgs | else:
|
1373 | 644e5023 | Dimitris Aragriorgs | serialized_form = serializer.Dump((kvm_cmd, serialized_nics, hvparams)) |
1374 | 644e5023 | Dimitris Aragriorgs | |
1375 | 38e250ba | Guido Trotter | self._WriteKVMRuntime(instance.name, serialized_form)
|
1376 | 38e250ba | Guido Trotter | |
1377 | 30e42c4e | Guido Trotter | def _LoadKVMRuntime(self, instance, serialized_runtime=None): |
1378 | 38e250ba | Guido Trotter | """Load an instance's KVM runtime
|
1379 | 38e250ba | Guido Trotter |
|
1380 | 38e250ba | Guido Trotter | """
|
1381 | 30e42c4e | Guido Trotter | if not serialized_runtime: |
1382 | 30e42c4e | Guido Trotter | serialized_runtime = self._ReadKVMRuntime(instance.name)
|
1383 | 30e42c4e | Guido Trotter | loaded_runtime = serializer.Load(serialized_runtime) |
1384 | 644e5023 | Dimitris Aragriorgs | if instance.hotplug_info:
|
1385 | 644e5023 | Dimitris Aragriorgs | kvm_cmd, serialized_nics, hvparams, serialized_blockdevs = loaded_runtime |
1386 | 644e5023 | Dimitris Aragriorgs | block_devices = [(objects.Disk.FromDict(sdisk), link) |
1387 | 644e5023 | Dimitris Aragriorgs | for sdisk, link in serialized_blockdevs] |
1388 | 644e5023 | Dimitris Aragriorgs | else:
|
1389 | 644e5023 | Dimitris Aragriorgs | kvm_cmd, serialized_nics, hvparams = loaded_runtime |
1390 | 644e5023 | Dimitris Aragriorgs | |
1391 | 38e250ba | Guido Trotter | kvm_nics = [objects.NIC.FromDict(snic) for snic in serialized_nics] |
1392 | 644e5023 | Dimitris Aragriorgs | |
1393 | 644e5023 | Dimitris Aragriorgs | if instance.hotplug_info:
|
1394 | 644e5023 | Dimitris Aragriorgs | return (kvm_cmd, kvm_nics, hvparams, block_devices)
|
1395 | 644e5023 | Dimitris Aragriorgs | else:
|
1396 | 644e5023 | Dimitris Aragriorgs | return (kvm_cmd, kvm_nics, hvparams)
|
1397 | 38e250ba | Guido Trotter | |
1398 | 5d9bfd87 | Apollon Oikonomopoulos | def _RunKVMCmd(self, name, kvm_cmd, tap_fds=None): |
1399 | 76431533 | Guido Trotter | """Run the KVM cmd and check for errors
|
1400 | 76431533 | Guido Trotter |
|
1401 | 76431533 | Guido Trotter | @type name: string
|
1402 | 76431533 | Guido Trotter | @param name: instance name
|
1403 | 76431533 | Guido Trotter | @type kvm_cmd: list of strings
|
1404 | 76431533 | Guido Trotter | @param kvm_cmd: runcmd input for kvm
|
1405 | 5d9bfd87 | Apollon Oikonomopoulos | @type tap_fds: list of int
|
1406 | 5d9bfd87 | Apollon Oikonomopoulos | @param tap_fds: fds of tap devices opened by Ganeti
|
1407 | 76431533 | Guido Trotter |
|
1408 | 76431533 | Guido Trotter | """
|
1409 | 5d9bfd87 | Apollon Oikonomopoulos | try:
|
1410 | 5d9bfd87 | Apollon Oikonomopoulos | result = utils.RunCmd(kvm_cmd, noclose_fds=tap_fds) |
1411 | 5d9bfd87 | Apollon Oikonomopoulos | finally:
|
1412 | 5d9bfd87 | Apollon Oikonomopoulos | for fd in tap_fds: |
1413 | 5d9bfd87 | Apollon Oikonomopoulos | utils_wrapper.CloseFdNoError(fd) |
1414 | 5d9bfd87 | Apollon Oikonomopoulos | |
1415 | 76431533 | Guido Trotter | if result.failed:
|
1416 | 76431533 | Guido Trotter | raise errors.HypervisorError("Failed to start instance %s: %s (%s)" % |
1417 | 76431533 | Guido Trotter | (name, result.fail_reason, result.output)) |
1418 | 76431533 | Guido Trotter | if not self._InstancePidAlive(name)[2]: |
1419 | 76431533 | Guido Trotter | raise errors.HypervisorError("Failed to start instance %s" % name) |
1420 | 76431533 | Guido Trotter | |
1421 | 30e42c4e | Guido Trotter | def _ExecuteKVMRuntime(self, instance, kvm_runtime, incoming=None): |
1422 | 839642c2 | Iustin Pop | """Execute a KVM cmd, after completing it with some last minute data.
|
1423 | ee5f20b0 | Guido Trotter |
|
1424 | 30e42c4e | Guido Trotter | @type incoming: tuple of strings
|
1425 | 30e42c4e | Guido Trotter | @param incoming: (target_host_ip, port)
|
1426 | 30e42c4e | Guido Trotter |
|
1427 | ee5f20b0 | Guido Trotter | """
|
1428 | 297e6e53 | Guido Trotter | # Small _ExecuteKVMRuntime hv parameters programming howto:
|
1429 | 297e6e53 | Guido Trotter | # - conf_hvp contains the parameters as configured on ganeti. they might
|
1430 | 297e6e53 | Guido Trotter | # have changed since the instance started; only use them if the change
|
1431 | 297e6e53 | Guido Trotter | # won't affect the inside of the instance (which hasn't been rebooted).
|
1432 | 297e6e53 | Guido Trotter | # - up_hvp contains the parameters as they were when the instance was
|
1433 | 297e6e53 | Guido Trotter | # started, plus any new parameter which has been added between ganeti
|
1434 | 297e6e53 | Guido Trotter | # versions: it is paramount that those default to a value which won't
|
1435 | 297e6e53 | Guido Trotter | # affect the inside of the instance as well.
|
1436 | 297e6e53 | Guido Trotter | conf_hvp = instance.hvparams |
1437 | 5905901c | Iustin Pop | name = instance.name |
1438 | 5905901c | Iustin Pop | self._CheckDown(name)
|
1439 | ee5f20b0 | Guido Trotter | |
1440 | ee5f20b0 | Guido Trotter | temp_files = [] |
1441 | ee5f20b0 | Guido Trotter | |
1442 | 644e5023 | Dimitris Aragriorgs | if instance.hotplug_info:
|
1443 | 644e5023 | Dimitris Aragriorgs | kvm_cmd, kvm_nics, up_hvp, block_devices = kvm_runtime |
1444 | 644e5023 | Dimitris Aragriorgs | else:
|
1445 | 644e5023 | Dimitris Aragriorgs | kvm_cmd, kvm_nics, up_hvp = kvm_runtime |
1446 | 644e5023 | Dimitris Aragriorgs | |
1447 | 297e6e53 | Guido Trotter | up_hvp = objects.FillDict(conf_hvp, up_hvp) |
1448 | ee5f20b0 | Guido Trotter | |
1449 | 440351f8 | Andrea Spadaccini | _, v_major, v_min, _ = self._GetKVMVersion()
|
1450 | 4b784cf8 | Miguel Di Ciurcio Filho | |
1451 | 297e6e53 | Guido Trotter | # We know it's safe to run as a different user upon migration, so we'll use
|
1452 | 297e6e53 | Guido Trotter | # the latest conf, from conf_hvp.
|
1453 | 297e6e53 | Guido Trotter | security_model = conf_hvp[constants.HV_SECURITY_MODEL] |
1454 | cef34868 | Guido Trotter | if security_model == constants.HT_SM_USER:
|
1455 | 297e6e53 | Guido Trotter | kvm_cmd.extend(["-runas", conf_hvp[constants.HV_SECURITY_DOMAIN]])
|
1456 | cef34868 | Guido Trotter | |
1457 | 839642c2 | Iustin Pop | keymap = conf_hvp[constants.HV_KEYMAP] |
1458 | 839642c2 | Iustin Pop | if keymap:
|
1459 | 839642c2 | Iustin Pop | keymap_path = self._InstanceKeymapFile(name)
|
1460 | 839642c2 | Iustin Pop | # If a keymap file is specified, KVM won't use its internal defaults. By
|
1461 | 839642c2 | Iustin Pop | # first including the "en-us" layout, an error on loading the actual
|
1462 | 839642c2 | Iustin Pop | # layout (e.g. because it can't be found) won't lead to a non-functional
|
1463 | 839642c2 | Iustin Pop | # keyboard. A keyboard with incorrect keys is still better than none.
|
1464 | 839642c2 | Iustin Pop | utils.WriteFile(keymap_path, data="include en-us\ninclude %s\n" % keymap)
|
1465 | 839642c2 | Iustin Pop | kvm_cmd.extend(["-k", keymap_path])
|
1466 | 839642c2 | Iustin Pop | |
1467 | 644e5023 | Dimitris Aragriorgs | if instance.hotplug_info:
|
1468 | 644e5023 | Dimitris Aragriorgs | kvm_cmd = self._GenerateKVMBlockDevicesOptions(instance, kvm_cmd,
|
1469 | 644e5023 | Dimitris Aragriorgs | block_devices) |
1470 | 1642a1d0 | Dimitris Aragiorgis | |
1471 | 297e6e53 | Guido Trotter | # We have reasons to believe changing something like the nic driver/type
|
1472 | 297e6e53 | Guido Trotter | # upon migration won't exactly fly with the instance kernel, so for nic
|
1473 | 297e6e53 | Guido Trotter | # related parameters we'll use up_hvp
|
1474 | 5d9bfd87 | Apollon Oikonomopoulos | tapfds = [] |
1475 | 5d9bfd87 | Apollon Oikonomopoulos | taps = [] |
1476 | ee5f20b0 | Guido Trotter | if not kvm_nics: |
1477 | fbe27e2b | Guido Trotter | kvm_cmd.extend(["-net", "none"]) |
1478 | ee5f20b0 | Guido Trotter | else:
|
1479 | 5d9bfd87 | Apollon Oikonomopoulos | vnet_hdr = False
|
1480 | fbe27e2b | Guido Trotter | tap_extra = ""
|
1481 | 297e6e53 | Guido Trotter | nic_type = up_hvp[constants.HV_NIC_TYPE] |
1482 | 37f88dc6 | Guido Trotter | if nic_type == constants.HT_NIC_PARAVIRTUAL:
|
1483 | 4b784cf8 | Miguel Di Ciurcio Filho | # From version 0.12.0, kvm uses a new sintax for network configuration.
|
1484 | 049383d9 | Adeodato Simo | if (v_major, v_min) >= (0, 12): |
1485 | 4b784cf8 | Miguel Di Ciurcio Filho | nic_model = "virtio-net-pci"
|
1486 | 5d9bfd87 | Apollon Oikonomopoulos | vnet_hdr = True
|
1487 | 4b784cf8 | Miguel Di Ciurcio Filho | else:
|
1488 | 4b784cf8 | Miguel Di Ciurcio Filho | nic_model = "virtio"
|
1489 | 4b784cf8 | Miguel Di Ciurcio Filho | |
1490 | 297e6e53 | Guido Trotter | if up_hvp[constants.HV_VHOST_NET]:
|
1491 | 4b784cf8 | Miguel Di Ciurcio Filho | # vhost_net is only available from version 0.13.0 or newer
|
1492 | 049383d9 | Adeodato Simo | if (v_major, v_min) >= (0, 13): |
1493 | 4b784cf8 | Miguel Di Ciurcio Filho | tap_extra = ",vhost=on"
|
1494 | 4b784cf8 | Miguel Di Ciurcio Filho | else:
|
1495 | 4b784cf8 | Miguel Di Ciurcio Filho | raise errors.HypervisorError("vhost_net is configured" |
1496 | 4b784cf8 | Miguel Di Ciurcio Filho | " but it is not available")
|
1497 | 37f88dc6 | Guido Trotter | else:
|
1498 | 4b784cf8 | Miguel Di Ciurcio Filho | nic_model = nic_type |
1499 | 37f88dc6 | Guido Trotter | |
1500 | ee5f20b0 | Guido Trotter | for nic_seq, nic in enumerate(kvm_nics): |
1501 | 5d9bfd87 | Apollon Oikonomopoulos | tapname, tapfd = _OpenTap(vnet_hdr) |
1502 | 5d9bfd87 | Apollon Oikonomopoulos | tapfds.append(tapfd) |
1503 | 5d9bfd87 | Apollon Oikonomopoulos | taps.append(tapname) |
1504 | 049383d9 | Adeodato Simo | if (v_major, v_min) >= (0, 12): |
1505 | 2435f63b | Dimitris Aragiorgis | nic_val = "%s,mac=%s" % (nic_model, nic.mac)
|
1506 | 7ed9f1ba | Dimitris Aragiorgis | if nic.idx is not None: |
1507 | 2435f63b | Dimitris Aragiorgis | nic_val += (",netdev=netdev%d,id=virtio-net-pci.%d" %
|
1508 | 2435f63b | Dimitris Aragiorgis | (nic.idx, nic.idx)) |
1509 | 2435f63b | Dimitris Aragiorgis | if nic.pci is not None: |
1510 | 2435f63b | Dimitris Aragiorgis | nic_val += (",bus=pci.0,addr=%s" % hex(nic.pci)) |
1511 | 1642a1d0 | Dimitris Aragiorgis | else:
|
1512 | 2435f63b | Dimitris Aragiorgis | nic_val += (",netdev=netdev%d,id=virtio-net-pci.%d" %
|
1513 | 2435f63b | Dimitris Aragiorgis | (nic_seq, nic_seq)) |
1514 | 2435f63b | Dimitris Aragiorgis | tap_val = ("type=tap,id=netdev%d,fd=%d%s" %
|
1515 | 2435f63b | Dimitris Aragiorgis | (nic.idx or nic_seq, tapfd, tap_extra))
|
1516 | 4b784cf8 | Miguel Di Ciurcio Filho | kvm_cmd.extend(["-netdev", tap_val, "-device", nic_val]) |
1517 | 4b784cf8 | Miguel Di Ciurcio Filho | else:
|
1518 | 049383d9 | Adeodato Simo | nic_val = "nic,vlan=%s,macaddr=%s,model=%s" % (nic_seq,
|
1519 | 049383d9 | Adeodato Simo | nic.mac, nic_model) |
1520 | 5d9bfd87 | Apollon Oikonomopoulos | tap_val = "tap,vlan=%s,fd=%d" % (nic_seq, tapfd)
|
1521 | 4b784cf8 | Miguel Di Ciurcio Filho | kvm_cmd.extend(["-net", tap_val, "-net", nic_val]) |
1522 | ee5f20b0 | Guido Trotter | |
1523 | 30e42c4e | Guido Trotter | if incoming:
|
1524 | 30e42c4e | Guido Trotter | target, port = incoming |
1525 | d0c8c01d | Iustin Pop | kvm_cmd.extend(["-incoming", "tcp:%s:%s" % (target, port)]) |
1526 | 30e42c4e | Guido Trotter | |
1527 | 297e6e53 | Guido Trotter | # Changing the vnc password doesn't bother the guest that much. At most it
|
1528 | 297e6e53 | Guido Trotter | # will surprise people who connect to it. Whether positively or negatively
|
1529 | 297e6e53 | Guido Trotter | # it's debatable.
|
1530 | 297e6e53 | Guido Trotter | vnc_pwd_file = conf_hvp[constants.HV_VNC_PASSWORD_FILE] |
1531 | 6e6bb8d5 | Guido Trotter | vnc_pwd = None
|
1532 | 6e6bb8d5 | Guido Trotter | if vnc_pwd_file:
|
1533 | 6e6bb8d5 | Guido Trotter | try:
|
1534 | 682f7601 | Guido Trotter | vnc_pwd = utils.ReadOneLineFile(vnc_pwd_file, strict=True)
|
1535 | 6e6bb8d5 | Guido Trotter | except EnvironmentError, err: |
1536 | 6e6bb8d5 | Guido Trotter | raise errors.HypervisorError("Failed to open VNC password file %s: %s" |
1537 | 6e6bb8d5 | Guido Trotter | % (vnc_pwd_file, err)) |
1538 | 6e6bb8d5 | Guido Trotter | |
1539 | 297e6e53 | Guido Trotter | if conf_hvp[constants.HV_KVM_USE_CHROOT]:
|
1540 | 547a63b7 | Balazs Lecz | utils.EnsureDirs([(self._InstanceChrootDir(name),
|
1541 | 547a63b7 | Balazs Lecz | constants.SECURE_DIR_MODE)]) |
1542 | 547a63b7 | Balazs Lecz | |
1543 | 91c10532 | Andrea Spadaccini | # Automatically enable QMP if version is >= 0.14
|
1544 | 91c10532 | Andrea Spadaccini | if (v_major, v_min) >= (0, 14): |
1545 | 91c10532 | Andrea Spadaccini | logging.debug("Enabling QMP")
|
1546 | 91c10532 | Andrea Spadaccini | kvm_cmd.extend(["-qmp", "unix:%s,server,nowait" % |
1547 | 91c10532 | Andrea Spadaccini | self._InstanceQmpMonitor(instance.name)])
|
1548 | 91c10532 | Andrea Spadaccini | |
1549 | cc8a8ed7 | Apollon Oikonomopoulos | # Configure the network now for starting instances and bridged interfaces,
|
1550 | cc8a8ed7 | Apollon Oikonomopoulos | # during FinalizeMigration for incoming instances' routed interfaces
|
1551 | cc8a8ed7 | Apollon Oikonomopoulos | for nic_seq, nic in enumerate(kvm_nics): |
1552 | cc8a8ed7 | Apollon Oikonomopoulos | if (incoming and |
1553 | cc8a8ed7 | Apollon Oikonomopoulos | nic.nicparams[constants.NIC_MODE] != constants.NIC_MODE_BRIDGED): |
1554 | cc8a8ed7 | Apollon Oikonomopoulos | continue
|
1555 | cc8a8ed7 | Apollon Oikonomopoulos | self._ConfigureNIC(instance, nic_seq, nic, taps[nic_seq])
|
1556 | 5d9bfd87 | Apollon Oikonomopoulos | |
1557 | 1d8a7812 | Andrea Spadaccini | # CPU affinity requires kvm to start paused, so we set this flag if the
|
1558 | 1d8a7812 | Andrea Spadaccini | # instance is not already paused and if we are not going to accept a
|
1559 | 1d8a7812 | Andrea Spadaccini | # migrating instance. In the latter case, pausing is not needed.
|
1560 | 1d8a7812 | Andrea Spadaccini | start_kvm_paused = not (_KVM_START_PAUSED_FLAG in kvm_cmd) and not incoming |
1561 | 945a7e67 | Guido Trotter | if start_kvm_paused:
|
1562 | 945a7e67 | Guido Trotter | kvm_cmd.extend([_KVM_START_PAUSED_FLAG]) |
1563 | b693125f | Tsachy Shacham | |
1564 | b693125f | Tsachy Shacham | # Note: CPU pinning is using up_hvp since changes take effect
|
1565 | b693125f | Tsachy Shacham | # during instance startup anyway, and to avoid problems when soft
|
1566 | b693125f | Tsachy Shacham | # rebooting the instance.
|
1567 | c607b1f7 | Tsachy Shacham | cpu_pinning = False
|
1568 | b693125f | Tsachy Shacham | if up_hvp.get(constants.HV_CPU_MASK, None): |
1569 | b693125f | Tsachy Shacham | cpu_pinning = True
|
1570 | b693125f | Tsachy Shacham | |
1571 | 76431533 | Guido Trotter | if security_model == constants.HT_SM_POOL:
|
1572 | 76431533 | Guido Trotter | ss = ssconf.SimpleStore() |
1573 | 76431533 | Guido Trotter | uid_pool = uidpool.ParseUidPool(ss.GetUidPool(), separator="\n")
|
1574 | 76431533 | Guido Trotter | all_uids = set(uidpool.ExpandUidPool(uid_pool))
|
1575 | 76431533 | Guido Trotter | uid = uidpool.RequestUnusedUid(all_uids) |
1576 | 76431533 | Guido Trotter | try:
|
1577 | 76431533 | Guido Trotter | username = pwd.getpwuid(uid.GetUid()).pw_name |
1578 | 76431533 | Guido Trotter | kvm_cmd.extend(["-runas", username])
|
1579 | 5d9bfd87 | Apollon Oikonomopoulos | self._RunKVMCmd(name, kvm_cmd, tapfds)
|
1580 | 76431533 | Guido Trotter | except:
|
1581 | 76431533 | Guido Trotter | uidpool.ReleaseUid(uid) |
1582 | 76431533 | Guido Trotter | raise
|
1583 | 76431533 | Guido Trotter | else:
|
1584 | 76431533 | Guido Trotter | uid.Unlock() |
1585 | 3af16328 | Apollon Oikonomopoulos | utils.WriteFile(self._InstanceUidFile(name), data=uid.AsStr())
|
1586 | 76431533 | Guido Trotter | else:
|
1587 | 5d9bfd87 | Apollon Oikonomopoulos | self._RunKVMCmd(name, kvm_cmd, tapfds)
|
1588 | 5d9bfd87 | Apollon Oikonomopoulos | |
1589 | 5d9bfd87 | Apollon Oikonomopoulos | utils.EnsureDirs([(self._InstanceNICDir(instance.name),
|
1590 | 5d9bfd87 | Apollon Oikonomopoulos | constants.RUN_DIRS_MODE)]) |
1591 | 5d9bfd87 | Apollon Oikonomopoulos | for nic_seq, tap in enumerate(taps): |
1592 | 5d9bfd87 | Apollon Oikonomopoulos | utils.WriteFile(self._InstanceNICFile(instance.name, nic_seq),
|
1593 | 5d9bfd87 | Apollon Oikonomopoulos | data=tap) |
1594 | eb58f9b1 | Guido Trotter | |
1595 | 6e6bb8d5 | Guido Trotter | if vnc_pwd:
|
1596 | d0c8c01d | Iustin Pop | change_cmd = "change vnc password %s" % vnc_pwd
|
1597 | 6e6bb8d5 | Guido Trotter | self._CallMonitorCommand(instance.name, change_cmd)
|
1598 | 6e6bb8d5 | Guido Trotter | |
1599 | b451c4c7 | Andrea Spadaccini | # Setting SPICE password. We are not vulnerable to malicious passwordless
|
1600 | b451c4c7 | Andrea Spadaccini | # connection attempts because SPICE by default does not allow connections
|
1601 | b451c4c7 | Andrea Spadaccini | # if neither a password nor the "disable_ticketing" options are specified.
|
1602 | b451c4c7 | Andrea Spadaccini | # As soon as we send the password via QMP, that password is a valid ticket
|
1603 | b451c4c7 | Andrea Spadaccini | # for connection.
|
1604 | b451c4c7 | Andrea Spadaccini | spice_password_file = conf_hvp[constants.HV_KVM_SPICE_PASSWORD_FILE] |
1605 | b451c4c7 | Andrea Spadaccini | if spice_password_file:
|
1606 | fc84cd5d | Guido Trotter | spice_pwd = ""
|
1607 | b451c4c7 | Andrea Spadaccini | try:
|
1608 | b451c4c7 | Andrea Spadaccini | spice_pwd = utils.ReadOneLineFile(spice_password_file, strict=True)
|
1609 | b451c4c7 | Andrea Spadaccini | except EnvironmentError, err: |
1610 | b451c4c7 | Andrea Spadaccini | raise errors.HypervisorError("Failed to open SPICE password file %s: %s" |
1611 | b451c4c7 | Andrea Spadaccini | % (spice_password_file, err)) |
1612 | b451c4c7 | Andrea Spadaccini | |
1613 | fc84cd5d | Guido Trotter | qmp = QmpConnection(self._InstanceQmpMonitor(instance.name))
|
1614 | fc84cd5d | Guido Trotter | qmp.connect() |
1615 | fc84cd5d | Guido Trotter | arguments = { |
1616 | fc84cd5d | Guido Trotter | "protocol": "spice", |
1617 | fc84cd5d | Guido Trotter | "password": spice_pwd,
|
1618 | fc84cd5d | Guido Trotter | } |
1619 | fc84cd5d | Guido Trotter | qmp.Execute("set_password", arguments)
|
1620 | fc84cd5d | Guido Trotter | |
1621 | 08137f9e | Iustin Pop | for filename in temp_files: |
1622 | 08137f9e | Iustin Pop | utils.RemoveFile(filename) |
1623 | eb58f9b1 | Guido Trotter | |
1624 | b693125f | Tsachy Shacham | # If requested, set CPU affinity and resume instance execution
|
1625 | b693125f | Tsachy Shacham | if cpu_pinning:
|
1626 | 945a7e67 | Guido Trotter | self._ExecuteCpuAffinity(instance.name, up_hvp[constants.HV_CPU_MASK])
|
1627 | 945a7e67 | Guido Trotter | |
1628 | 61eb1a46 | Guido Trotter | start_memory = self._InstanceStartupMemory(instance)
|
1629 | 61eb1a46 | Guido Trotter | if start_memory < instance.beparams[constants.BE_MAXMEM]:
|
1630 | 61eb1a46 | Guido Trotter | self.BalloonInstanceMemory(instance, start_memory)
|
1631 | 61eb1a46 | Guido Trotter | |
1632 | 945a7e67 | Guido Trotter | if start_kvm_paused:
|
1633 | 2ed0e208 | Iustin Pop | # To control CPU pinning, ballooning, and vnc/spice passwords
|
1634 | 2ed0e208 | Iustin Pop | # the VM was started in a frozen state. If freezing was not
|
1635 | 2ed0e208 | Iustin Pop | # explicitly requested resume the vm status.
|
1636 | 945a7e67 | Guido Trotter | self._CallMonitorCommand(instance.name, self._CONT_CMD) |
1637 | b693125f | Tsachy Shacham | |
1638 | 323f9095 | Stephen Shirley | def StartInstance(self, instance, block_devices, startup_paused): |
1639 | ee5f20b0 | Guido Trotter | """Start an instance.
|
1640 | ee5f20b0 | Guido Trotter |
|
1641 | ee5f20b0 | Guido Trotter | """
|
1642 | 5905901c | Iustin Pop | self._CheckDown(instance.name)
|
1643 | 7238edb5 | Iustin Pop | kvm_runtime = self._GenerateKVMRuntime(instance, block_devices,
|
1644 | 7238edb5 | Iustin Pop | startup_paused) |
1645 | 38e250ba | Guido Trotter | self._SaveKVMRuntime(instance, kvm_runtime)
|
1646 | ee5f20b0 | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime)
|
1647 | ee5f20b0 | Guido Trotter | |
1648 | 6567aff3 | Guido Trotter | def _CallMonitorCommand(self, instance_name, command): |
1649 | 6567aff3 | Guido Trotter | """Invoke a command on the instance monitor.
|
1650 | 6567aff3 | Guido Trotter |
|
1651 | 6567aff3 | Guido Trotter | """
|
1652 | 6567aff3 | Guido Trotter | socat = ("echo %s | %s STDIO UNIX-CONNECT:%s" %
|
1653 | 6567aff3 | Guido Trotter | (utils.ShellQuote(command), |
1654 | 6567aff3 | Guido Trotter | constants.SOCAT_PATH, |
1655 | 6567aff3 | Guido Trotter | utils.ShellQuote(self._InstanceMonitor(instance_name))))
|
1656 | 6567aff3 | Guido Trotter | result = utils.RunCmd(socat) |
1657 | 6567aff3 | Guido Trotter | if result.failed:
|
1658 | 6567aff3 | Guido Trotter | msg = ("Failed to send command '%s' to instance %s."
|
1659 | 6567aff3 | Guido Trotter | " output: %s, error: %s, fail_reason: %s" %
|
1660 | 9798fcae | Guido Trotter | (command, instance_name, |
1661 | 9798fcae | Guido Trotter | result.stdout, result.stderr, result.fail_reason)) |
1662 | 6567aff3 | Guido Trotter | raise errors.HypervisorError(msg)
|
1663 | 6567aff3 | Guido Trotter | |
1664 | 6567aff3 | Guido Trotter | return result
|
1665 | 6567aff3 | Guido Trotter | |
1666 | 2435f63b | Dimitris Aragiorgis | def _FindFreePCISlot(self, instance_name): |
1667 | 2435f63b | Dimitris Aragiorgis | slots = bitarray(32)
|
1668 | 2435f63b | Dimitris Aragiorgis | slots.setall(False)
|
1669 | 2435f63b | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance_name, self._INFO_PCI_CMD) |
1670 | 2435f63b | Dimitris Aragiorgis | for line in output.stdout.splitlines(): |
1671 | 2435f63b | Dimitris Aragiorgis | match = self._INFO_PCI_RE.search(line)
|
1672 | 2435f63b | Dimitris Aragiorgis | if match:
|
1673 | 2435f63b | Dimitris Aragiorgis | slot = int(match.group(1)) |
1674 | 2435f63b | Dimitris Aragiorgis | slots[slot] = True
|
1675 | 2435f63b | Dimitris Aragiorgis | |
1676 | 2435f63b | Dimitris Aragiorgis | free = slots.search(FREE, 1)
|
1677 | 2435f63b | Dimitris Aragiorgis | if not free: |
1678 | 2435f63b | Dimitris Aragiorgis | raise errors.HypervisorError("All PCI slots occupied") |
1679 | 2435f63b | Dimitris Aragiorgis | |
1680 | 2435f63b | Dimitris Aragiorgis | return int(free[0]) |
1681 | 2435f63b | Dimitris Aragiorgis | |
1682 | 2435f63b | Dimitris Aragiorgis | def _HotplugEnabled(self, instance_name): |
1683 | 2435f63b | Dimitris Aragiorgis | if not self._InstancePidAlive(instance_name)[2]: |
1684 | 2435f63b | Dimitris Aragiorgis | logging.info("Cannot hotplug. Instance %s not alive", instance_name)
|
1685 | 2435f63b | Dimitris Aragiorgis | return False |
1686 | 2435f63b | Dimitris Aragiorgis | |
1687 | 2435f63b | Dimitris Aragiorgis | _, v_major, v_min, _ = self._GetKVMVersion()
|
1688 | 2435f63b | Dimitris Aragiorgis | return (v_major, v_min) >= (1, 0) |
1689 | 2435f63b | Dimitris Aragiorgis | |
1690 | 59a5de9e | Dimitris Aragiorgis | def HotAddDisk(self, instance, disk, dev_path, _): |
1691 | 1642a1d0 | Dimitris Aragiorgis | """Hotadd new disk to the VM
|
1692 | 1642a1d0 | Dimitris Aragiorgis |
|
1693 | 1642a1d0 | Dimitris Aragiorgis | """
|
1694 | 2435f63b | Dimitris Aragiorgis | if self._HotplugEnabled(instance.name): |
1695 | 2435f63b | Dimitris Aragiorgis | disk.pci = self._FindFreePCISlot(instance.name)
|
1696 | 1642a1d0 | Dimitris Aragiorgis | idx = disk.idx |
1697 | 1642a1d0 | Dimitris Aragiorgis | command = ("drive_add dummy file=%s,if=none,id=drive%d,format=raw" %
|
1698 | 1642a1d0 | Dimitris Aragiorgis | (dev_path, idx)) |
1699 | 1642a1d0 | Dimitris Aragiorgis | |
1700 | 59a5de9e | Dimitris Aragiorgis | logging.info("Run cmd %s", command)
|
1701 | 1642a1d0 | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance.name, command)
|
1702 | 1642a1d0 | Dimitris Aragiorgis | |
1703 | 1642a1d0 | Dimitris Aragiorgis | command = ("device_add virtio-blk-pci,bus=pci.0,addr=%s,"
|
1704 | 1642a1d0 | Dimitris Aragiorgis | "drive=drive%d,id=virtio-blk-pci.%d"
|
1705 | 1642a1d0 | Dimitris Aragiorgis | % (hex(disk.pci), idx, idx))
|
1706 | 59a5de9e | Dimitris Aragiorgis | logging.info("Run cmd %s", command)
|
1707 | 1642a1d0 | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance.name, command)
|
1708 | 1642a1d0 | Dimitris Aragiorgis | for line in output.stdout.splitlines(): |
1709 | 59a5de9e | Dimitris Aragiorgis | logging.info("%s", line)
|
1710 | 1642a1d0 | Dimitris Aragiorgis | |
1711 | 1642a1d0 | Dimitris Aragiorgis | (kvm_cmd, kvm_nics, |
1712 | 1642a1d0 | Dimitris Aragiorgis | hvparams, block_devices) = self._LoadKVMRuntime(instance)
|
1713 | 1642a1d0 | Dimitris Aragiorgis | block_devices.append((disk, dev_path)) |
1714 | 1642a1d0 | Dimitris Aragiorgis | new_kvm_runtime = (kvm_cmd, kvm_nics, hvparams, block_devices) |
1715 | 1642a1d0 | Dimitris Aragiorgis | self._SaveKVMRuntime(instance, new_kvm_runtime)
|
1716 | 1642a1d0 | Dimitris Aragiorgis | |
1717 | 2435f63b | Dimitris Aragiorgis | return disk.pci
|
1718 | 1642a1d0 | Dimitris Aragiorgis | |
1719 | 59a5de9e | Dimitris Aragiorgis | def HotDelDisk(self, instance, disk, _): |
1720 | 1642a1d0 | Dimitris Aragiorgis | """Hotdel disk to the VM
|
1721 | 1642a1d0 | Dimitris Aragiorgis |
|
1722 | 1642a1d0 | Dimitris Aragiorgis | """
|
1723 | 2435f63b | Dimitris Aragiorgis | if self._HotplugEnabled(instance.name): |
1724 | 1642a1d0 | Dimitris Aragiorgis | idx = disk.idx |
1725 | 1642a1d0 | Dimitris Aragiorgis | |
1726 | 1642a1d0 | Dimitris Aragiorgis | command = "device_del virtio-blk-pci.%d" % idx
|
1727 | 59a5de9e | Dimitris Aragiorgis | logging.info("Run cmd %s", command)
|
1728 | 1642a1d0 | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance.name, command)
|
1729 | 1642a1d0 | Dimitris Aragiorgis | for line in output.stdout.splitlines(): |
1730 | 59a5de9e | Dimitris Aragiorgis | logging.info("%s", line)
|
1731 | 1642a1d0 | Dimitris Aragiorgis | |
1732 | 1642a1d0 | Dimitris Aragiorgis | command = "drive_del drive%d" % idx
|
1733 | 59a5de9e | Dimitris Aragiorgis | logging.info("Run cmd %s", command)
|
1734 | 1642a1d0 | Dimitris Aragiorgis | #output = self._CallMonitorCommand(instance.name, command)
|
1735 | 1642a1d0 | Dimitris Aragiorgis | #for line in output.stdout.splitlines():
|
1736 | 1642a1d0 | Dimitris Aragiorgis | # logging.info("%s" % line)
|
1737 | 1642a1d0 | Dimitris Aragiorgis | |
1738 | 1642a1d0 | Dimitris Aragiorgis | (kvm_cmd, kvm_nics, |
1739 | 1642a1d0 | Dimitris Aragiorgis | hvparams, block_devices) = self._LoadKVMRuntime(instance)
|
1740 | 1642a1d0 | Dimitris Aragiorgis | rem = [(d, p) for d, p in block_devices |
1741 | 1642a1d0 | Dimitris Aragiorgis | if d.idx is not None and d.idx == idx] |
1742 | 1642a1d0 | Dimitris Aragiorgis | try:
|
1743 | 1642a1d0 | Dimitris Aragiorgis | block_devices.remove(rem[0])
|
1744 | 1642a1d0 | Dimitris Aragiorgis | except (ValueError, IndexError): |
1745 | 1642a1d0 | Dimitris Aragiorgis | logging.info("Disk with %d idx disappeared from runtime file", idx)
|
1746 | 1642a1d0 | Dimitris Aragiorgis | new_kvm_runtime = (kvm_cmd, kvm_nics, hvparams, block_devices) |
1747 | 1642a1d0 | Dimitris Aragiorgis | self._SaveKVMRuntime(instance, new_kvm_runtime)
|
1748 | 1642a1d0 | Dimitris Aragiorgis | |
1749 | 1642a1d0 | Dimitris Aragiorgis | def HotAddNic(self, instance, nic, seq): |
1750 | 1642a1d0 | Dimitris Aragiorgis | """Hotadd new nic to the VM
|
1751 | 1642a1d0 | Dimitris Aragiorgis |
|
1752 | 1642a1d0 | Dimitris Aragiorgis | """
|
1753 | 2435f63b | Dimitris Aragiorgis | if self._HotplugEnabled(instance.name): |
1754 | 2435f63b | Dimitris Aragiorgis | nic.pci = self._FindFreePCISlot(instance.name)
|
1755 | 1642a1d0 | Dimitris Aragiorgis | mac = nic.mac |
1756 | 1642a1d0 | Dimitris Aragiorgis | idx = nic.idx |
1757 | 1642a1d0 | Dimitris Aragiorgis | |
1758 | 1642a1d0 | Dimitris Aragiorgis | (tap, fd) = _OpenTap() |
1759 | 1642a1d0 | Dimitris Aragiorgis | logging.info("%s %d", tap, fd)
|
1760 | 1642a1d0 | Dimitris Aragiorgis | |
1761 | 1642a1d0 | Dimitris Aragiorgis | self._PassTapFd(instance, fd, nic)
|
1762 | 1642a1d0 | Dimitris Aragiorgis | |
1763 | 1642a1d0 | Dimitris Aragiorgis | command = ("netdev_add tap,id=netdev%d,fd=netdev%d"
|
1764 | 1642a1d0 | Dimitris Aragiorgis | % (idx, idx)) |
1765 | 59a5de9e | Dimitris Aragiorgis | logging.info("Run cmd %s", command)
|
1766 | 1642a1d0 | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance.name, command)
|
1767 | 1642a1d0 | Dimitris Aragiorgis | for line in output.stdout.splitlines(): |
1768 | 59a5de9e | Dimitris Aragiorgis | logging.info("%s", line)
|
1769 | 1642a1d0 | Dimitris Aragiorgis | |
1770 | 1642a1d0 | Dimitris Aragiorgis | command = ("device_add virtio-net-pci,bus=pci.0,addr=%s,mac=%s,"
|
1771 | 1642a1d0 | Dimitris Aragiorgis | "netdev=netdev%d,id=virtio-net-pci.%d"
|
1772 | 1642a1d0 | Dimitris Aragiorgis | % (hex(nic.pci), mac, idx, idx))
|
1773 | 59a5de9e | Dimitris Aragiorgis | logging.info("Run cmd %s", command)
|
1774 | 1642a1d0 | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance.name, command)
|
1775 | 1642a1d0 | Dimitris Aragiorgis | for line in output.stdout.splitlines(): |
1776 | 59a5de9e | Dimitris Aragiorgis | logging.info("%s", line)
|
1777 | 1642a1d0 | Dimitris Aragiorgis | |
1778 | 1642a1d0 | Dimitris Aragiorgis | self._ConfigureNIC(instance, seq, nic, tap)
|
1779 | 1642a1d0 | Dimitris Aragiorgis | |
1780 | 1642a1d0 | Dimitris Aragiorgis | (kvm_cmd, kvm_nics, |
1781 | 1642a1d0 | Dimitris Aragiorgis | hvparams, block_devices) = self._LoadKVMRuntime(instance)
|
1782 | 1642a1d0 | Dimitris Aragiorgis | kvm_nics.append(nic) |
1783 | 1642a1d0 | Dimitris Aragiorgis | new_kvm_runtime = (kvm_cmd, kvm_nics, hvparams, block_devices) |
1784 | 1642a1d0 | Dimitris Aragiorgis | self._SaveKVMRuntime(instance, new_kvm_runtime)
|
1785 | 1642a1d0 | Dimitris Aragiorgis | |
1786 | 2435f63b | Dimitris Aragiorgis | return nic.pci
|
1787 | 1642a1d0 | Dimitris Aragiorgis | |
1788 | 59a5de9e | Dimitris Aragiorgis | def HotDelNic(self, instance, nic, _): |
1789 | 1642a1d0 | Dimitris Aragiorgis | """Hotadd new nic to the VM
|
1790 | 1642a1d0 | Dimitris Aragiorgis |
|
1791 | 1642a1d0 | Dimitris Aragiorgis | """
|
1792 | 2435f63b | Dimitris Aragiorgis | if self._HotplugEnabled(instance.name): |
1793 | 1642a1d0 | Dimitris Aragiorgis | idx = nic.idx |
1794 | 1642a1d0 | Dimitris Aragiorgis | |
1795 | 1642a1d0 | Dimitris Aragiorgis | command = "device_del virtio-net-pci.%d" % idx
|
1796 | 59a5de9e | Dimitris Aragiorgis | logging.info("Run cmd %s", command)
|
1797 | 1642a1d0 | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance.name, command)
|
1798 | 1642a1d0 | Dimitris Aragiorgis | for line in output.stdout.splitlines(): |
1799 | 59a5de9e | Dimitris Aragiorgis | logging.info("%s", line)
|
1800 | 1642a1d0 | Dimitris Aragiorgis | |
1801 | 1642a1d0 | Dimitris Aragiorgis | command = "netdev_del netdev%d" % idx
|
1802 | 59a5de9e | Dimitris Aragiorgis | logging.info("Run cmd %s", command)
|
1803 | 1642a1d0 | Dimitris Aragiorgis | output = self._CallMonitorCommand(instance.name, command)
|
1804 | 1642a1d0 | Dimitris Aragiorgis | for line in output.stdout.splitlines(): |
1805 | 59a5de9e | Dimitris Aragiorgis | logging.info("%s", line)
|
1806 | 1642a1d0 | Dimitris Aragiorgis | |
1807 | 1642a1d0 | Dimitris Aragiorgis | (kvm_cmd, kvm_nics, |
1808 | 1642a1d0 | Dimitris Aragiorgis | hvparams, block_devices) = self._LoadKVMRuntime(instance)
|
1809 | 1642a1d0 | Dimitris Aragiorgis | rem = [n for n in kvm_nics if n.idx is not None and n.idx == nic.idx] |
1810 | 1642a1d0 | Dimitris Aragiorgis | try:
|
1811 | 1642a1d0 | Dimitris Aragiorgis | kvm_nics.remove(rem[0])
|
1812 | 1642a1d0 | Dimitris Aragiorgis | except (ValueError, IndexError): |
1813 | 1642a1d0 | Dimitris Aragiorgis | logging.info("NIC with %d idx disappeared from runtime file", nic.idx)
|
1814 | 1642a1d0 | Dimitris Aragiorgis | new_kvm_runtime = (kvm_cmd, kvm_nics, hvparams, block_devices) |
1815 | 1642a1d0 | Dimitris Aragiorgis | self._SaveKVMRuntime(instance, new_kvm_runtime)
|
1816 | 1642a1d0 | Dimitris Aragiorgis | |
1817 | 1642a1d0 | Dimitris Aragiorgis | |
1818 | 1642a1d0 | Dimitris Aragiorgis | def _PassTapFd(self, instance, fd, nic): |
1819 | 1642a1d0 | Dimitris Aragiorgis | monsock = utils.ShellQuote(self._InstanceMonitor(instance.name))
|
1820 | 1642a1d0 | Dimitris Aragiorgis | s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) |
1821 | 1642a1d0 | Dimitris Aragiorgis | s.connect(monsock) |
1822 | 1642a1d0 | Dimitris Aragiorgis | idx = nic.idx |
1823 | 1642a1d0 | Dimitris Aragiorgis | command = "getfd netdev%d\n" % idx
|
1824 | 1642a1d0 | Dimitris Aragiorgis | fds = [fd] |
1825 | 1642a1d0 | Dimitris Aragiorgis | logging.info("%s", fds)
|
1826 | 1642a1d0 | Dimitris Aragiorgis | fdsend.sendfds(s, command, fds = fds) |
1827 | 1642a1d0 | Dimitris Aragiorgis | s.close() |
1828 | 1642a1d0 | Dimitris Aragiorgis | |
1829 | b52d85c1 | Guido Trotter | @classmethod
|
1830 | 585c8187 | Guido Trotter | def _ParseKVMVersion(cls, text): |
1831 | 585c8187 | Guido Trotter | """Parse the KVM version from the --help output.
|
1832 | 585c8187 | Guido Trotter |
|
1833 | 585c8187 | Guido Trotter | @type text: string
|
1834 | 585c8187 | Guido Trotter | @param text: output of kvm --help
|
1835 | 585c8187 | Guido Trotter | @return: (version, v_maj, v_min, v_rev)
|
1836 | 5c3d5dfd | Iustin Pop | @raise errors.HypervisorError: when the KVM version cannot be retrieved
|
1837 | 585c8187 | Guido Trotter |
|
1838 | 585c8187 | Guido Trotter | """
|
1839 | 585c8187 | Guido Trotter | match = cls._VERSION_RE.search(text.splitlines()[0])
|
1840 | 585c8187 | Guido Trotter | if not match: |
1841 | 585c8187 | Guido Trotter | raise errors.HypervisorError("Unable to get KVM version") |
1842 | 585c8187 | Guido Trotter | |
1843 | 585c8187 | Guido Trotter | v_all = match.group(0)
|
1844 | 585c8187 | Guido Trotter | v_maj = int(match.group(1)) |
1845 | 585c8187 | Guido Trotter | v_min = int(match.group(2)) |
1846 | 585c8187 | Guido Trotter | if match.group(4): |
1847 | 585c8187 | Guido Trotter | v_rev = int(match.group(4)) |
1848 | 585c8187 | Guido Trotter | else:
|
1849 | 585c8187 | Guido Trotter | v_rev = 0
|
1850 | 585c8187 | Guido Trotter | return (v_all, v_maj, v_min, v_rev)
|
1851 | 585c8187 | Guido Trotter | |
1852 | 585c8187 | Guido Trotter | @classmethod
|
1853 | b52d85c1 | Guido Trotter | def _GetKVMVersion(cls): |
1854 | d7e4a2b1 | Andrea Spadaccini | """Return the installed KVM version.
|
1855 | b52d85c1 | Guido Trotter |
|
1856 | 440351f8 | Andrea Spadaccini | @return: (version, v_maj, v_min, v_rev)
|
1857 | 5c3d5dfd | Iustin Pop | @raise errors.HypervisorError: when the KVM version cannot be retrieved
|
1858 | b52d85c1 | Guido Trotter |
|
1859 | b52d85c1 | Guido Trotter | """
|
1860 | b52d85c1 | Guido Trotter | result = utils.RunCmd([constants.KVM_PATH, "--help"])
|
1861 | b52d85c1 | Guido Trotter | if result.failed:
|
1862 | 440351f8 | Andrea Spadaccini | raise errors.HypervisorError("Unable to get KVM version") |
1863 | 585c8187 | Guido Trotter | return cls._ParseKVMVersion(result.output)
|
1864 | b52d85c1 | Guido Trotter | |
1865 | bbcf7ad0 | Iustin Pop | def StopInstance(self, instance, force=False, retry=False, name=None): |
1866 | eb58f9b1 | Guido Trotter | """Stop an instance.
|
1867 | eb58f9b1 | Guido Trotter |
|
1868 | eb58f9b1 | Guido Trotter | """
|
1869 | bbcf7ad0 | Iustin Pop | if name is not None and not force: |
1870 | bbcf7ad0 | Iustin Pop | raise errors.HypervisorError("Cannot shutdown cleanly by name only") |
1871 | bbcf7ad0 | Iustin Pop | if name is None: |
1872 | bbcf7ad0 | Iustin Pop | name = instance.name |
1873 | bbcf7ad0 | Iustin Pop | acpi = instance.hvparams[constants.HV_ACPI] |
1874 | bbcf7ad0 | Iustin Pop | else:
|
1875 | bbcf7ad0 | Iustin Pop | acpi = False
|
1876 | 8904b35c | Guido Trotter | _, pid, alive = self._InstancePidAlive(name)
|
1877 | 1f8b3a27 | Guido Trotter | if pid > 0 and alive: |
1878 | bbcf7ad0 | Iustin Pop | if force or not acpi: |
1879 | eb58f9b1 | Guido Trotter | utils.KillProcess(pid) |
1880 | eb58f9b1 | Guido Trotter | else:
|
1881 | d0c8c01d | Iustin Pop | self._CallMonitorCommand(name, "system_powerdown") |
1882 | eb58f9b1 | Guido Trotter | |
1883 | 8904b35c | Guido Trotter | def CleanupInstance(self, instance_name): |
1884 | 8904b35c | Guido Trotter | """Cleanup after a stopped instance
|
1885 | 8904b35c | Guido Trotter |
|
1886 | 8904b35c | Guido Trotter | """
|
1887 | 8904b35c | Guido Trotter | pidfile, pid, alive = self._InstancePidAlive(instance_name)
|
1888 | 8904b35c | Guido Trotter | if pid > 0 and alive: |
1889 | 8904b35c | Guido Trotter | raise errors.HypervisorError("Cannot cleanup a live instance") |
1890 | 8904b35c | Guido Trotter | self._RemoveInstanceRuntimeFiles(pidfile, instance_name)
|
1891 | eb58f9b1 | Guido Trotter | |
1892 | eb58f9b1 | Guido Trotter | def RebootInstance(self, instance): |
1893 | eb58f9b1 | Guido Trotter | """Reboot an instance.
|
1894 | eb58f9b1 | Guido Trotter |
|
1895 | eb58f9b1 | Guido Trotter | """
|
1896 | eb58f9b1 | Guido Trotter | # For some reason if we do a 'send-key ctrl-alt-delete' to the control
|
1897 | eb58f9b1 | Guido Trotter | # socket the instance will stop, but now power up again. So we'll resort
|
1898 | eb58f9b1 | Guido Trotter | # to shutdown and restart.
|
1899 | 1122eb25 | Iustin Pop | _, _, alive = self._InstancePidAlive(instance.name)
|
1900 | 1f8b3a27 | Guido Trotter | if not alive: |
1901 | 78411c60 | Iustin Pop | raise errors.HypervisorError("Failed to reboot instance %s:" |
1902 | 78411c60 | Iustin Pop | " not running" % instance.name)
|
1903 | f02881e0 | Guido Trotter | # StopInstance will delete the saved KVM runtime so:
|
1904 | f02881e0 | Guido Trotter | # ...first load it...
|
1905 | f02881e0 | Guido Trotter | kvm_runtime = self._LoadKVMRuntime(instance)
|
1906 | f02881e0 | Guido Trotter | # ...now we can safely call StopInstance...
|
1907 | f02881e0 | Guido Trotter | if not self.StopInstance(instance): |
1908 | f02881e0 | Guido Trotter | self.StopInstance(instance, force=True) |
1909 | f02881e0 | Guido Trotter | # ...and finally we can save it again, and execute it...
|
1910 | f02881e0 | Guido Trotter | self._SaveKVMRuntime(instance, kvm_runtime)
|
1911 | f02881e0 | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime)
|
1912 | eb58f9b1 | Guido Trotter | |
1913 | 30e42c4e | Guido Trotter | def MigrationInfo(self, instance): |
1914 | 30e42c4e | Guido Trotter | """Get instance information to perform a migration.
|
1915 | 30e42c4e | Guido Trotter |
|
1916 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
1917 | 30e42c4e | Guido Trotter | @param instance: instance to be migrated
|
1918 | 30e42c4e | Guido Trotter | @rtype: string
|
1919 | 30e42c4e | Guido Trotter | @return: content of the KVM runtime file
|
1920 | 30e42c4e | Guido Trotter |
|
1921 | 30e42c4e | Guido Trotter | """
|
1922 | 30e42c4e | Guido Trotter | return self._ReadKVMRuntime(instance.name) |
1923 | 30e42c4e | Guido Trotter | |
1924 | 30e42c4e | Guido Trotter | def AcceptInstance(self, instance, info, target): |
1925 | 30e42c4e | Guido Trotter | """Prepare to accept an instance.
|
1926 | 30e42c4e | Guido Trotter |
|
1927 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
1928 | 30e42c4e | Guido Trotter | @param instance: instance to be accepted
|
1929 | 30e42c4e | Guido Trotter | @type info: string
|
1930 | 30e42c4e | Guido Trotter | @param info: content of the KVM runtime file on the source node
|
1931 | 30e42c4e | Guido Trotter | @type target: string
|
1932 | 30e42c4e | Guido Trotter | @param target: target host (usually ip), on this node
|
1933 | 30e42c4e | Guido Trotter |
|
1934 | 30e42c4e | Guido Trotter | """
|
1935 | 30e42c4e | Guido Trotter | kvm_runtime = self._LoadKVMRuntime(instance, serialized_runtime=info)
|
1936 | 641ae041 | Iustin Pop | incoming_address = (target, instance.hvparams[constants.HV_MIGRATION_PORT]) |
1937 | 30e42c4e | Guido Trotter | self._ExecuteKVMRuntime(instance, kvm_runtime, incoming=incoming_address)
|
1938 | 30e42c4e | Guido Trotter | |
1939 | 6a1434d7 | Andrea Spadaccini | def FinalizeMigrationDst(self, instance, info, success): |
1940 | 6a1434d7 | Andrea Spadaccini | """Finalize the instance migration on the target node.
|
1941 | 30e42c4e | Guido Trotter |
|
1942 | 30e42c4e | Guido Trotter | Stop the incoming mode KVM.
|
1943 | 30e42c4e | Guido Trotter |
|
1944 | 30e42c4e | Guido Trotter | @type instance: L{objects.Instance}
|
1945 | fea922fa | Guido Trotter | @param instance: instance whose migration is being finalized
|
1946 | 30e42c4e | Guido Trotter |
|
1947 | 30e42c4e | Guido Trotter | """
|
1948 | 30e42c4e | Guido Trotter | if success:
|
1949 | 5d9bfd87 | Apollon Oikonomopoulos | kvm_runtime = self._LoadKVMRuntime(instance, serialized_runtime=info)
|
1950 | 5d9bfd87 | Apollon Oikonomopoulos | kvm_nics = kvm_runtime[1]
|
1951 | 5d9bfd87 | Apollon Oikonomopoulos | |
1952 | 5d9bfd87 | Apollon Oikonomopoulos | for nic_seq, nic in enumerate(kvm_nics): |
1953 | cc8a8ed7 | Apollon Oikonomopoulos | if nic.nicparams[constants.NIC_MODE] == constants.NIC_MODE_BRIDGED:
|
1954 | cc8a8ed7 | Apollon Oikonomopoulos | # Bridged interfaces have already been configured
|
1955 | cc8a8ed7 | Apollon Oikonomopoulos | continue
|
1956 | 5d9bfd87 | Apollon Oikonomopoulos | try:
|
1957 | 5d9bfd87 | Apollon Oikonomopoulos | tap = utils.ReadFile(self._InstanceNICFile(instance.name, nic_seq))
|
1958 | 5d9bfd87 | Apollon Oikonomopoulos | except EnvironmentError, err: |
1959 | 5d9bfd87 | Apollon Oikonomopoulos | logging.warning("Failed to find host interface for %s NIC #%d: %s",
|
1960 | 5d9bfd87 | Apollon Oikonomopoulos | instance.name, nic_seq, str(err))
|
1961 | 5d9bfd87 | Apollon Oikonomopoulos | continue
|
1962 | 5d9bfd87 | Apollon Oikonomopoulos | try:
|
1963 | 5d9bfd87 | Apollon Oikonomopoulos | self._ConfigureNIC(instance, nic_seq, nic, tap)
|
1964 | 5d9bfd87 | Apollon Oikonomopoulos | except errors.HypervisorError, err:
|
1965 | 5d9bfd87 | Apollon Oikonomopoulos | logging.warning(str(err))
|
1966 | 5d9bfd87 | Apollon Oikonomopoulos | |
1967 | 30e42c4e | Guido Trotter | self._WriteKVMRuntime(instance.name, info)
|
1968 | 30e42c4e | Guido Trotter | else:
|
1969 | 30e42c4e | Guido Trotter | self.StopInstance(instance, force=True) |
1970 | 30e42c4e | Guido Trotter | |
1971 | 58d38b02 | Iustin Pop | def MigrateInstance(self, instance, target, live): |
1972 | 30e42c4e | Guido Trotter | """Migrate an instance to a target node.
|
1973 | 30e42c4e | Guido Trotter |
|
1974 | 30e42c4e | Guido Trotter | The migration will not be attempted if the instance is not
|
1975 | 30e42c4e | Guido Trotter | currently running.
|
1976 | 30e42c4e | Guido Trotter |
|
1977 | 58d38b02 | Iustin Pop | @type instance: L{objects.Instance}
|
1978 | 58d38b02 | Iustin Pop | @param instance: the instance to be migrated
|
1979 | 30e42c4e | Guido Trotter | @type target: string
|
1980 | 30e42c4e | Guido Trotter | @param target: ip address of the target node
|
1981 | 30e42c4e | Guido Trotter | @type live: boolean
|
1982 | 30e42c4e | Guido Trotter | @param live: perform a live migration
|
1983 | 30e42c4e | Guido Trotter |
|
1984 | 30e42c4e | Guido Trotter | """
|
1985 | 58d38b02 | Iustin Pop | instance_name = instance.name |
1986 | 50716be0 | Iustin Pop | port = instance.hvparams[constants.HV_MIGRATION_PORT] |
1987 | 6a1434d7 | Andrea Spadaccini | _, _, alive = self._InstancePidAlive(instance_name)
|
1988 | 30e42c4e | Guido Trotter | if not alive: |
1989 | 30e42c4e | Guido Trotter | raise errors.HypervisorError("Instance not running, cannot migrate") |
1990 | 30e42c4e | Guido Trotter | |
1991 | 30e42c4e | Guido Trotter | if not live: |
1992 | d0c8c01d | Iustin Pop | self._CallMonitorCommand(instance_name, "stop") |
1993 | 30e42c4e | Guido Trotter | |
1994 | d0c8c01d | Iustin Pop | migrate_command = ("migrate_set_speed %dm" %
|
1995 | e43d4f9f | Apollon Oikonomopoulos | instance.hvparams[constants.HV_MIGRATION_BANDWIDTH]) |
1996 | e43d4f9f | Apollon Oikonomopoulos | self._CallMonitorCommand(instance_name, migrate_command)
|
1997 | e43d4f9f | Apollon Oikonomopoulos | |
1998 | d0c8c01d | Iustin Pop | migrate_command = ("migrate_set_downtime %dms" %
|
1999 | e43d4f9f | Apollon Oikonomopoulos | instance.hvparams[constants.HV_MIGRATION_DOWNTIME]) |
2000 | e43d4f9f | Apollon Oikonomopoulos | self._CallMonitorCommand(instance_name, migrate_command)
|
2001 | e43d4f9f | Apollon Oikonomopoulos | |
2002 | d0c8c01d | Iustin Pop | migrate_command = "migrate -d tcp:%s:%s" % (target, port)
|
2003 | 30e42c4e | Guido Trotter | self._CallMonitorCommand(instance_name, migrate_command)
|
2004 | 30e42c4e | Guido Trotter | |
2005 | 6a1434d7 | Andrea Spadaccini | def FinalizeMigrationSource(self, instance, success, live): |
2006 | 6a1434d7 | Andrea Spadaccini | """Finalize the instance migration on the source node.
|
2007 | 6a1434d7 | Andrea Spadaccini |
|
2008 | 6a1434d7 | Andrea Spadaccini | @type instance: L{objects.Instance}
|
2009 | 6a1434d7 | Andrea Spadaccini | @param instance: the instance that was migrated
|
2010 | 6a1434d7 | Andrea Spadaccini | @type success: bool
|
2011 | 6a1434d7 | Andrea Spadaccini | @param success: whether the migration succeeded or not
|
2012 | 6a1434d7 | Andrea Spadaccini | @type live: bool
|
2013 | 6a1434d7 | Andrea Spadaccini | @param live: whether the user requested a live migration or not
|
2014 | 6a1434d7 | Andrea Spadaccini |
|
2015 | 6a1434d7 | Andrea Spadaccini | """
|
2016 | 6a1434d7 | Andrea Spadaccini | if success:
|
2017 | 6a1434d7 | Andrea Spadaccini | pidfile, pid, _ = self._InstancePidAlive(instance.name)
|
2018 | 6a1434d7 | Andrea Spadaccini | utils.KillProcess(pid) |
2019 | 6a1434d7 | Andrea Spadaccini | self._RemoveInstanceRuntimeFiles(pidfile, instance.name)
|
2020 | 6a1434d7 | Andrea Spadaccini | elif live:
|
2021 | 6a1434d7 | Andrea Spadaccini | self._CallMonitorCommand(instance.name, self._CONT_CMD) |
2022 | 6a1434d7 | Andrea Spadaccini | |
2023 | 6a1434d7 | Andrea Spadaccini | def GetMigrationStatus(self, instance): |
2024 | 6a1434d7 | Andrea Spadaccini | """Get the migration status
|
2025 | 6a1434d7 | Andrea Spadaccini |
|
2026 | 6a1434d7 | Andrea Spadaccini | @type instance: L{objects.Instance}
|
2027 | 6a1434d7 | Andrea Spadaccini | @param instance: the instance that is being migrated
|
2028 | 6a1434d7 | Andrea Spadaccini | @rtype: L{objects.MigrationStatus}
|
2029 | 6a1434d7 | Andrea Spadaccini | @return: the status of the current migration (one of
|
2030 | 6a1434d7 | Andrea Spadaccini | L{constants.HV_MIGRATION_VALID_STATUSES}), plus any additional
|
2031 | 6a1434d7 | Andrea Spadaccini | progress info that can be retrieved from the hypervisor
|
2032 | 6a1434d7 | Andrea Spadaccini |
|
2033 | 6a1434d7 | Andrea Spadaccini | """
|
2034 | d0c8c01d | Iustin Pop | info_command = "info migrate"
|
2035 | 6a1434d7 | Andrea Spadaccini | for _ in range(self._MIGRATION_INFO_MAX_BAD_ANSWERS): |
2036 | 6a1434d7 | Andrea Spadaccini | result = self._CallMonitorCommand(instance.name, info_command)
|
2037 | 30e42c4e | Guido Trotter | match = self._MIGRATION_STATUS_RE.search(result.stdout)
|
2038 | 30e42c4e | Guido Trotter | if not match: |
2039 | c4e388a5 | Guido Trotter | if not result.stdout: |
2040 | c4e388a5 | Guido Trotter | logging.info("KVM: empty 'info migrate' result")
|
2041 | c4e388a5 | Guido Trotter | else:
|
2042 | e4dd2299 | Guido Trotter | logging.warning("KVM: unknown 'info migrate' result: %s",
|
2043 | c4e388a5 | Guido Trotter | result.stdout) |
2044 | 30e42c4e | Guido Trotter | else:
|
2045 | 30e42c4e | Guido Trotter | status = match.group(1)
|
2046 | 6a1434d7 | Andrea Spadaccini | if status in constants.HV_KVM_MIGRATION_VALID_STATUSES: |
2047 | 6a1434d7 | Andrea Spadaccini | migration_status = objects.MigrationStatus(status=status) |
2048 | 61643226 | Andrea Spadaccini | match = self._MIGRATION_PROGRESS_RE.search(result.stdout)
|
2049 | 61643226 | Andrea Spadaccini | if match:
|
2050 | 61643226 | Andrea Spadaccini | migration_status.transferred_ram = match.group("transferred")
|
2051 | 61643226 | Andrea Spadaccini | migration_status.total_ram = match.group("total")
|
2052 | 61643226 | Andrea Spadaccini | |
2053 | 6a1434d7 | Andrea Spadaccini | return migration_status
|
2054 | 30e42c4e | Guido Trotter | |
2055 | 6a1434d7 | Andrea Spadaccini | logging.warning("KVM: unknown migration status '%s'", status)
|
2056 | 6a1434d7 | Andrea Spadaccini | |
2057 | 6a1434d7 | Andrea Spadaccini | time.sleep(self._MIGRATION_INFO_RETRY_DELAY)
|
2058 | 6a1434d7 | Andrea Spadaccini | |
2059 | 6a1434d7 | Andrea Spadaccini | return objects.MigrationStatus(status=constants.HV_MIGRATION_FAILED,
|
2060 | 6a1434d7 | Andrea Spadaccini | info="Too many 'info migrate' broken answers")
|
2061 | 30e42c4e | Guido Trotter | |
2062 | 3d836750 | Guido Trotter | def BalloonInstanceMemory(self, instance, mem): |
2063 | 3d836750 | Guido Trotter | """Balloon an instance memory to a certain value.
|
2064 | 3d836750 | Guido Trotter |
|
2065 | 3d836750 | Guido Trotter | @type instance: L{objects.Instance}
|
2066 | 3d836750 | Guido Trotter | @param instance: instance to be accepted
|
2067 | 3d836750 | Guido Trotter | @type mem: int
|
2068 | 3d836750 | Guido Trotter | @param mem: actual memory size to use for instance runtime
|
2069 | 3d836750 | Guido Trotter |
|
2070 | 3d836750 | Guido Trotter | """
|
2071 | 3d836750 | Guido Trotter | self._CallMonitorCommand(instance.name, "balloon %d" % mem) |
2072 | 3d836750 | Guido Trotter | |
2073 | eb58f9b1 | Guido Trotter | def GetNodeInfo(self): |
2074 | eb58f9b1 | Guido Trotter | """Return information about the node.
|
2075 | eb58f9b1 | Guido Trotter |
|
2076 | c41eea6e | Iustin Pop | @return: a dict with the following keys (values in MiB):
|
2077 | c41eea6e | Iustin Pop | - memory_total: the total memory size on the node
|
2078 | c41eea6e | Iustin Pop | - memory_free: the available memory on the node for instances
|
2079 | c41eea6e | Iustin Pop | - memory_dom0: the memory used by the node itself, if available
|
2080 | 34fbc862 | Andrea Spadaccini | - hv_version: the hypervisor version in the form (major, minor,
|
2081 | 34fbc862 | Andrea Spadaccini | revision)
|
2082 | eb58f9b1 | Guido Trotter |
|
2083 | eb58f9b1 | Guido Trotter | """
|
2084 | 34fbc862 | Andrea Spadaccini | result = self.GetLinuxNodeInfo()
|
2085 | 34fbc862 | Andrea Spadaccini | _, v_major, v_min, v_rev = self._GetKVMVersion()
|
2086 | 34fbc862 | Andrea Spadaccini | result[constants.HV_NODEINFO_KEY_VERSION] = (v_major, v_min, v_rev) |
2087 | 34fbc862 | Andrea Spadaccini | return result
|
2088 | eb58f9b1 | Guido Trotter | |
2089 | 637ce7f9 | Guido Trotter | @classmethod
|
2090 | 55cc0a44 | Michael Hanselmann | def GetInstanceConsole(cls, instance, hvparams, beparams): |
2091 | eb58f9b1 | Guido Trotter | """Return a command for connecting to the console of an instance.
|
2092 | eb58f9b1 | Guido Trotter |
|
2093 | eb58f9b1 | Guido Trotter | """
|
2094 | a2faf9ee | Guido Trotter | if hvparams[constants.HV_SERIAL_CONSOLE]:
|
2095 | 2f4c951e | Stephen Shirley | cmd = [constants.KVM_CONSOLE_WRAPPER, |
2096 | 2f4c951e | Stephen Shirley | constants.SOCAT_PATH, utils.ShellQuote(instance.name), |
2097 | 2f4c951e | Stephen Shirley | utils.ShellQuote(cls._InstanceMonitor(instance.name)), |
2098 | 55cc0a44 | Michael Hanselmann | "STDIO,%s" % cls._SocatUnixConsoleParams(),
|
2099 | 55cc0a44 | Michael Hanselmann | "UNIX-CONNECT:%s" % cls._InstanceSerial(instance.name)]
|
2100 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
2101 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_SSH, |
2102 | 55cc0a44 | Michael Hanselmann | host=instance.primary_node, |
2103 | 55cc0a44 | Michael Hanselmann | user=constants.GANETI_RUNAS, |
2104 | 55cc0a44 | Michael Hanselmann | command=cmd) |
2105 | 3be34f57 | Guido Trotter | |
2106 | 3be34f57 | Guido Trotter | vnc_bind_address = hvparams[constants.HV_VNC_BIND_ADDRESS] |
2107 | 55cc0a44 | Michael Hanselmann | if vnc_bind_address and instance.network_port > constants.VNC_BASE_PORT: |
2108 | 55cc0a44 | Michael Hanselmann | display = instance.network_port - constants.VNC_BASE_PORT |
2109 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
2110 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_VNC, |
2111 | 55cc0a44 | Michael Hanselmann | host=vnc_bind_address, |
2112 | 55cc0a44 | Michael Hanselmann | port=instance.network_port, |
2113 | 55cc0a44 | Michael Hanselmann | display=display) |
2114 | 55cc0a44 | Michael Hanselmann | |
2115 | 4d2cdb5a | Andrea Spadaccini | spice_bind = hvparams[constants.HV_KVM_SPICE_BIND] |
2116 | 4d2cdb5a | Andrea Spadaccini | if spice_bind:
|
2117 | 4d2cdb5a | Andrea Spadaccini | return objects.InstanceConsole(instance=instance.name,
|
2118 | 4d2cdb5a | Andrea Spadaccini | kind=constants.CONS_SPICE, |
2119 | 4d2cdb5a | Andrea Spadaccini | host=spice_bind, |
2120 | 4d2cdb5a | Andrea Spadaccini | port=instance.network_port) |
2121 | 4d2cdb5a | Andrea Spadaccini | |
2122 | 55cc0a44 | Michael Hanselmann | return objects.InstanceConsole(instance=instance.name,
|
2123 | 55cc0a44 | Michael Hanselmann | kind=constants.CONS_MESSAGE, |
2124 | 55cc0a44 | Michael Hanselmann | message=("No serial shell for instance %s" %
|
2125 | 55cc0a44 | Michael Hanselmann | instance.name)) |
2126 | eb58f9b1 | Guido Trotter | |
2127 | eb58f9b1 | Guido Trotter | def Verify(self): |
2128 | eb58f9b1 | Guido Trotter | """Verify the hypervisor.
|
2129 | eb58f9b1 | Guido Trotter |
|
2130 | eb58f9b1 | Guido Trotter | Check that the binary exists.
|
2131 | eb58f9b1 | Guido Trotter |
|
2132 | eb58f9b1 | Guido Trotter | """
|
2133 | eb58f9b1 | Guido Trotter | if not os.path.exists(constants.KVM_PATH): |
2134 | eb58f9b1 | Guido Trotter | return "The kvm binary ('%s') does not exist." % constants.KVM_PATH |
2135 | 14aa53cb | Guido Trotter | if not os.path.exists(constants.SOCAT_PATH): |
2136 | 14aa53cb | Guido Trotter | return "The socat binary ('%s') does not exist." % constants.SOCAT_PATH |
2137 | 14aa53cb | Guido Trotter | |
2138 | 6b5605e8 | Iustin Pop | @classmethod
|
2139 | 6b5605e8 | Iustin Pop | def CheckParameterSyntax(cls, hvparams): |
2140 | 6b5605e8 | Iustin Pop | """Check the given parameters for validity.
|
2141 | 6b5605e8 | Iustin Pop |
|
2142 | 6b5605e8 | Iustin Pop | @type hvparams: dict
|
2143 | 6b5605e8 | Iustin Pop | @param hvparams: dictionary with parameter names/value
|
2144 | 6b5605e8 | Iustin Pop | @raise errors.HypervisorError: when a parameter is not valid
|
2145 | 6b5605e8 | Iustin Pop |
|
2146 | 6b5605e8 | Iustin Pop | """
|
2147 | 47387b1e | Guido Trotter | super(KVMHypervisor, cls).CheckParameterSyntax(hvparams)
|
2148 | 6b5605e8 | Iustin Pop | |
2149 | df5ab9f0 | Guido Trotter | kernel_path = hvparams[constants.HV_KERNEL_PATH] |
2150 | df5ab9f0 | Guido Trotter | if kernel_path:
|
2151 | df5ab9f0 | Guido Trotter | if not hvparams[constants.HV_ROOT_PATH]: |
2152 | 205ab586 | Iustin Pop | raise errors.HypervisorError("Need a root partition for the instance," |
2153 | 205ab586 | Iustin Pop | " if a kernel is defined")
|
2154 | 6b5605e8 | Iustin Pop | |
2155 | 205ab586 | Iustin Pop | if (hvparams[constants.HV_VNC_X509_VERIFY] and |
2156 | 205ab586 | Iustin Pop | not hvparams[constants.HV_VNC_X509]):
|
2157 | 205ab586 | Iustin Pop | raise errors.HypervisorError("%s must be defined, if %s is" % |
2158 | 205ab586 | Iustin Pop | (constants.HV_VNC_X509, |
2159 | 205ab586 | Iustin Pop | constants.HV_VNC_X509_VERIFY)) |
2160 | 66d5dbef | Guido Trotter | |
2161 | 66d5dbef | Guido Trotter | boot_order = hvparams[constants.HV_BOOT_ORDER] |
2162 | 205ab586 | Iustin Pop | if (boot_order == constants.HT_BO_CDROM and |
2163 | 205ab586 | Iustin Pop | not hvparams[constants.HV_CDROM_IMAGE_PATH]):
|
2164 | 835528af | Iustin Pop | raise errors.HypervisorError("Cannot boot from cdrom without an" |
2165 | 835528af | Iustin Pop | " ISO path")
|
2166 | f5118ade | Iustin Pop | |
2167 | d19d94db | Guido Trotter | security_model = hvparams[constants.HV_SECURITY_MODEL] |
2168 | d19d94db | Guido Trotter | if security_model == constants.HT_SM_USER:
|
2169 | d19d94db | Guido Trotter | if not hvparams[constants.HV_SECURITY_DOMAIN]: |
2170 | d19d94db | Guido Trotter | raise errors.HypervisorError("A security domain (user to run kvm as)" |
2171 | d19d94db | Guido Trotter | " must be specified")
|
2172 | d19d94db | Guido Trotter | elif (security_model == constants.HT_SM_NONE or |
2173 | d19d94db | Guido Trotter | security_model == constants.HT_SM_POOL): |
2174 | d19d94db | Guido Trotter | if hvparams[constants.HV_SECURITY_DOMAIN]:
|
2175 | d19d94db | Guido Trotter | raise errors.HypervisorError("Cannot have a security domain when the" |
2176 | d19d94db | Guido Trotter | " security model is 'none' or 'pool'")
|
2177 | d19d94db | Guido Trotter | |
2178 | b1cb62bd | Andrea Spadaccini | spice_bind = hvparams[constants.HV_KVM_SPICE_BIND] |
2179 | b451c4c7 | Andrea Spadaccini | spice_ip_version = hvparams[constants.HV_KVM_SPICE_IP_VERSION] |
2180 | b1cb62bd | Andrea Spadaccini | if spice_bind:
|
2181 | b1cb62bd | Andrea Spadaccini | if spice_ip_version != constants.IFACE_NO_IP_VERSION_SPECIFIED:
|
2182 | b1cb62bd | Andrea Spadaccini | # if an IP version is specified, the spice_bind parameter must be an
|
2183 | b1cb62bd | Andrea Spadaccini | # IP of that family
|
2184 | b1cb62bd | Andrea Spadaccini | if (netutils.IP4Address.IsValid(spice_bind) and |
2185 | b1cb62bd | Andrea Spadaccini | spice_ip_version != constants.IP4_VERSION): |
2186 | b1cb62bd | Andrea Spadaccini | raise errors.HypervisorError("spice: got an IPv4 address (%s), but" |
2187 | b1cb62bd | Andrea Spadaccini | " the specified IP version is %s" %
|
2188 | b1cb62bd | Andrea Spadaccini | (spice_bind, spice_ip_version)) |
2189 | b1cb62bd | Andrea Spadaccini | |
2190 | b1cb62bd | Andrea Spadaccini | if (netutils.IP6Address.IsValid(spice_bind) and |
2191 | b1cb62bd | Andrea Spadaccini | spice_ip_version != constants.IP6_VERSION): |
2192 | b1cb62bd | Andrea Spadaccini | raise errors.HypervisorError("spice: got an IPv6 address (%s), but" |
2193 | b1cb62bd | Andrea Spadaccini | " the specified IP version is %s" %
|
2194 | b1cb62bd | Andrea Spadaccini | (spice_bind, spice_ip_version)) |
2195 | b451c4c7 | Andrea Spadaccini | else:
|
2196 | 0e1b03b9 | Andrea Spadaccini | # All the other SPICE parameters depend on spice_bind being set. Raise an
|
2197 | 0e1b03b9 | Andrea Spadaccini | # error if any of them is set without it.
|
2198 | 0e1b03b9 | Andrea Spadaccini | spice_additional_params = frozenset([
|
2199 | 0e1b03b9 | Andrea Spadaccini | constants.HV_KVM_SPICE_IP_VERSION, |
2200 | 0e1b03b9 | Andrea Spadaccini | constants.HV_KVM_SPICE_PASSWORD_FILE, |
2201 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_LOSSLESS_IMG_COMPR, |
2202 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_JPEG_IMG_COMPR, |
2203 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_ZLIB_GLZ_IMG_COMPR, |
2204 | ea064d24 | Andrea Spadaccini | constants.HV_KVM_SPICE_STREAMING_VIDEO_DETECTION, |
2205 | bfe86c76 | Andrea Spadaccini | constants.HV_KVM_SPICE_USE_TLS, |
2206 | 0e1b03b9 | Andrea Spadaccini | ]) |
2207 | 0e1b03b9 | Andrea Spadaccini | for param in spice_additional_params: |
2208 | 0e1b03b9 | Andrea Spadaccini | if hvparams[param]:
|
2209 | 0e1b03b9 | Andrea Spadaccini | raise errors.HypervisorError("spice: %s requires %s to be set" % |
2210 | 0e1b03b9 | Andrea Spadaccini | (param, constants.HV_KVM_SPICE_BIND)) |
2211 | b1cb62bd | Andrea Spadaccini | |
2212 | d19d94db | Guido Trotter | @classmethod
|
2213 | d19d94db | Guido Trotter | def ValidateParameters(cls, hvparams): |
2214 | d19d94db | Guido Trotter | """Check the given parameters for validity.
|
2215 | d19d94db | Guido Trotter |
|
2216 | d19d94db | Guido Trotter | @type hvparams: dict
|
2217 | d19d94db | Guido Trotter | @param hvparams: dictionary with parameter names/value
|
2218 | d19d94db | Guido Trotter | @raise errors.HypervisorError: when a parameter is not valid
|
2219 | d19d94db | Guido Trotter |
|
2220 | d19d94db | Guido Trotter | """
|
2221 | d19d94db | Guido Trotter | super(KVMHypervisor, cls).ValidateParameters(hvparams)
|
2222 | d19d94db | Guido Trotter | |
2223 | d19d94db | Guido Trotter | security_model = hvparams[constants.HV_SECURITY_MODEL] |
2224 | d19d94db | Guido Trotter | if security_model == constants.HT_SM_USER:
|
2225 | d19d94db | Guido Trotter | username = hvparams[constants.HV_SECURITY_DOMAIN] |
2226 | d19d94db | Guido Trotter | try:
|
2227 | 1feb39ec | Guido Trotter | pwd.getpwnam(username) |
2228 | d19d94db | Guido Trotter | except KeyError: |
2229 | d19d94db | Guido Trotter | raise errors.HypervisorError("Unknown security domain user %s" |
2230 | d19d94db | Guido Trotter | % username) |
2231 | d19d94db | Guido Trotter | |
2232 | b1cb62bd | Andrea Spadaccini | spice_bind = hvparams[constants.HV_KVM_SPICE_BIND] |
2233 | b1cb62bd | Andrea Spadaccini | if spice_bind:
|
2234 | b1cb62bd | Andrea Spadaccini | # only one of VNC and SPICE can be used currently.
|
2235 | b1cb62bd | Andrea Spadaccini | if hvparams[constants.HV_VNC_BIND_ADDRESS]:
|
2236 | b1cb62bd | Andrea Spadaccini | raise errors.HypervisorError("both SPICE and VNC are configured, but" |
2237 | b1cb62bd | Andrea Spadaccini | " only one of them can be used at a"
|
2238 | b1cb62bd | Andrea Spadaccini | " given time.")
|
2239 | b1cb62bd | Andrea Spadaccini | |
2240 | b1cb62bd | Andrea Spadaccini | # KVM version should be >= 0.14.0
|
2241 | b1cb62bd | Andrea Spadaccini | _, v_major, v_min, _ = cls._GetKVMVersion() |
2242 | b1cb62bd | Andrea Spadaccini | if (v_major, v_min) < (0, 14): |
2243 | b1cb62bd | Andrea Spadaccini | raise errors.HypervisorError("spice is configured, but it is not" |
2244 | b1cb62bd | Andrea Spadaccini | " available in versions of KVM < 0.14")
|
2245 | b1cb62bd | Andrea Spadaccini | |
2246 | b1cb62bd | Andrea Spadaccini | # if spice_bind is not an IP address, it must be a valid interface
|
2247 | b1cb62bd | Andrea Spadaccini | bound_to_addr = (netutils.IP4Address.IsValid(spice_bind) |
2248 | b1cb62bd | Andrea Spadaccini | or netutils.IP6Address.IsValid(spice_bind))
|
2249 | b1cb62bd | Andrea Spadaccini | if not bound_to_addr and not netutils.IsValidInterface(spice_bind): |
2250 | b1cb62bd | Andrea Spadaccini | raise errors.HypervisorError("spice: the %s parameter must be either" |
2251 | b1cb62bd | Andrea Spadaccini | " a valid IP address or interface name" %
|
2252 | b1cb62bd | Andrea Spadaccini | constants.HV_KVM_SPICE_BIND) |
2253 | b1cb62bd | Andrea Spadaccini | |
2254 | f5118ade | Iustin Pop | @classmethod
|
2255 | f5118ade | Iustin Pop | def PowercycleNode(cls): |
2256 | f5118ade | Iustin Pop | """KVM powercycle, just a wrapper over Linux powercycle.
|
2257 | f5118ade | Iustin Pop |
|
2258 | f5118ade | Iustin Pop | """
|
2259 | f5118ade | Iustin Pop | cls.LinuxPowercycle() |