virsh 虚拟机xml信息,留个记录
virsh dumpxml domain
虚拟机dumpxml例,可以参考格式
xml
  <domain type='kvm' id='12'>
    <name>ceph-node3</name>
    <uuid>4f52f828-f538-45cb-9f02-eeb555e96020</uuid>
    <memory unit='KiB'>8388608</memory>
    <currentMemory unit='KiB'>8388608</currentMemory>
    <vcpu placement='static'>2</vcpu>
    <resource>
      <partition>/machine</partition>
    </resource>
    <os>
      <type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>
      <boot dev='hd'/>
    </os>
    <features>
      <acpi/>
      <apic/>
    </features>
    <cpu mode='custom' match='exact' check='full'>
      <model fallback='forbid'>Haswell-IBRS</model>
      <feature policy='disable' name='hle'/>
      <feature policy='disable' name='rtm'/>
      <feature policy='require' name='hypervisor'/>
      <feature policy='require' name='xsaveopt'/>
    </cpu>
    <clock offset='utc'>
      <timer name='rtc' tickpolicy='catchup'/>
      <timer name='pit' tickpolicy='delay'/>
      <timer name='hpet' present='no'/>
    </clock>
    <on_poweroff>destroy</on_poweroff>
    <on_reboot>restart</on_reboot>
    <on_crash>destroy</on_crash>
    <pm>
      <suspend-to-mem enabled='no'/>
      <suspend-to-disk enabled='no'/>
    </pm>
    <devices>
      <emulator>/usr/libexec/qemu-kvm</emulator>
      <disk type='file' device='disk'>
        <driver name='qemu' type='qcow2'/>
        <source file='/ceph2/images/ceph_node3.qcow2'/>
        <backingStore/>
        <target dev='vda' bus='virtio'/>
        <alias name='virtio-disk0'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
      </disk>
      <disk type='file' device='disk'>
        <driver name='qemu' type='qcow2' cache='none'/>
        <source file='/ceph2/images/ceph_node3_storage.qcow2'/>
        <backingStore/>
        <target dev='vdb' bus='virtio'/>
        <alias name='virtio-disk1'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
      </disk>
      <disk type='file' device='cdrom'>
        <driver name='qemu'/>
        <target dev='hda' bus='ide'/>
        <readonly/>
        <alias name='ide0-0-0'/>
        <address type='drive' controller='0' bus='0' target='0' unit='0'/>
      </disk>
      <controller type='usb' index='0' model='ich9-ehci1'>
        <alias name='usb'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x7'/>
      </controller>
      <controller type='usb' index='0' model='ich9-uhci1'>
        <alias name='usb'/>
        <master startport='0'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0' multifunction='on'/>
      </controller>
      <controller type='usb' index='0' model='ich9-uhci2'>
        <alias name='usb'/>
        <master startport='2'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x1'/>
      </controller>
      <controller type='usb' index='0' model='ich9-uhci3'>
        <alias name='usb'/>
        <master startport='4'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x2'/>
      </controller>
      <controller type='pci' index='0' model='pci-root'>
        <alias name='pci.0'/>
      </controller>
      <controller type='ide' index='0'>
        <alias name='ide'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
      </controller>
      <controller type='virtio-serial' index='0'>
        <alias name='virtio-serial0'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
      </controller>
      <interface type='bridge'>
        <mac address='52:54:00:94:b4:fe'/>
        <source bridge='br0'/>
        <target dev='vnet2'/>
        <model type='virtio'/>
        <alias name='net0'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
      </interface>
      <serial type='pty'>
        <source path='/dev/pts/5'/>
        <target type='isa-serial' port='0'>
          <model name='isa-serial'/>
        </target>
        <alias name='serial0'/>
      </serial>
      <console type='pty' tty='/dev/pts/5'>
        <source path='/dev/pts/5'/>
        <target type='serial' port='0'/>
        <alias name='serial0'/>
      </console>
      <channel type='unix'>
        <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/domain-12-ceph-node3/org.qemu.guest_agent.0'/>
        <target type='virtio' name='org.qemu.guest_agent.0' state='connected'/>
        <alias name='channel0'/>
        <address type='virtio-serial' controller='0' bus='0' port='1'/>
      </channel>
      <input type='tablet' bus='usb'>
        <alias name='input0'/>
        <address type='usb' bus='0' port='1'/>
      </input>
      <input type='mouse' bus='ps2'>
        <alias name='input1'/>
      </input>
      <input type='keyboard' bus='ps2'>
        <alias name='input2'/>
      </input>
      <graphics type='vnc' port='5902' autoport='yes' listen='0.0.0.0'>
        <listen type='address' address='0.0.0.0'/>
      </graphics>
      <video>
        <model type='cirrus' vram='16384' heads='1' primary='yes'/>
        <alias name='video0'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
      </video>
      <memballoon model='virtio'>
        <alias name='balloon0'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
      </memballoon>
      <rng model='virtio'>
        <backend model='random'>/dev/urandom</backend>
        <alias name='rng0'/>
        <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
      </rng>
    </devices>
    <seclabel type='dynamic' model='selinux' relabel='yes'>
      <label>system_u:system_r:svirt_t:s0:c21,c647</label>
      <imagelabel>system_u:object_r:svirt_image_t:s0:c21,c647</imagelabel>
    </seclabel>
    <seclabel type='dynamic' model='dac' relabel='yes'>
      <label>+107:+107</label>
      <imagelabel>+107:+107</imagelabel>
    </seclabel>
  </domain>