[CentOS-virt] Setting up a pci passthrough device
James B. Byrne
byrnejb at harte-lyne.ca
Fri Feb 3 11:32:01 EST 2012
Evidently I should be using
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Host_Configuration_and_Guest_Installation_Guide/chap-Virtualization_Host_Configuration_and_Guest_Installation_Guide-PCI_Assignment.html
Which I had looked for but google apparently does not
report. I had to search the RedHat web site using their
search interface to locate it. The other site purports to
be a rhel6 essentials book.
Nonetheless, while the inconsistencies of the previous
documents are resolved in this new reference the example
edit of the virtual guest configuration still fails to
provide a context for the insertion:
# virsh edit guest1-rhel6-64
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address domain='0x000' bus='0x03' slot='0x00'
function='0x0'/>
</source>
</hostdev>
Where does this go inside the rest of the guest
configuration?
<domain type='kvm'>
<name>inet08.harte-lyne.ca</name>
<uuid>6409d721-cfcf-2169-f65e-8f583b685f58</uuid>
<description>Inet08 [216.185.71.28] virtual hosts:
none</description>
<memory>4194304</memory>
<currentMemory>4194304</currentMemory>
<vcpu>1</vcpu>
<os>
<type arch='x86_64' machine='rhel6.2.0'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/libexec/qemu-kvm</emulator>
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none'
io='native'/>
<source
dev='/dev/vg_vhost01/lv_vm_inet08.harte-lyne.ca_00'/>
<target dev='vda' bus='virtio'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x05' function='0x0'/>
</disk>
<disk type='block' device='cdrom'>
<driver name='qemu' type='raw'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1' unit='0'/>
</disk>
<controller type='ide' index='0'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x01' function='0x1'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:bf:e9:ac'/>
<source bridge='br0'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x03' function='0x0'/>
</interface>
<serial type='pty'>
<target port='0'/>
</serial>
<serial type='dev'>
<source path='/dev/ttyS0'/>
<target port='1'/>
</serial>
<console type='pty'>
<target type='serial' port='0'/>
</console>
<input type='tablet' bus='usb'/>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes'/>
<sound model='ich6'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</sound>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x0'/>
</video>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x06' function='0x0'/>
</memballoon>
</devices>
</domain>
I have tried placing the <hostdev> tags after the
<devices> tag but the changes simply disappear.
--
*** E-Mail is NOT a SECURE channel ***
James B. Byrne mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited http://www.harte-lyne.ca
9 Brockley Drive vox: +1 905 561 1241
Hamilton, Ontario fax: +1 905 561 0757
Canada L8E 3C3
More information about the CentOS-virt
mailing list