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80af11d3dd
Now that NVDIMM has found its way into libvirt, users might want to fine tune some settings for each module separately. One such setting is 'share=on|off' for the memory-backend-file object. This setting - just like its name suggest already - enables sharing the nvdimm module with other applications. Under the hood it controls whether qemu mmaps() the file as MAP_PRIVATE or MAP_SHARED. Yet again, we have such config knob in domain XML, but it's just an attribute to numa <cell/>. This does not give fine enough tuning on per-memdevice basis so we need to have the attribute for each device too. Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
57 lines
1.8 KiB
XML
57 lines
1.8 KiB
XML
<domain type='qemu'>
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<name>QEMUGuest1</name>
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<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
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<maxMemory slots='16' unit='KiB'>1099511627776</maxMemory>
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<memory unit='KiB'>1267710</memory>
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<currentMemory unit='KiB'>1267710</currentMemory>
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<vcpu placement='static' cpuset='0-1'>2</vcpu>
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<os>
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<type arch='i686' machine='pc'>hvm</type>
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<boot dev='hd'/>
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</os>
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<idmap>
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<uid start='0' target='1000' count='10'/>
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<gid start='0' target='1000' count='10'/>
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</idmap>
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<cpu>
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<topology sockets='2' cores='1' threads='1'/>
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<numa>
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<cell id='0' cpus='0-1' memory='219136' unit='KiB'/>
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</numa>
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</cpu>
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<clock offset='utc'/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>destroy</on_crash>
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<devices>
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<emulator>/usr/bin/qemu</emulator>
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<disk type='block' device='disk'>
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<source dev='/dev/HostVG/QEMUGuest1'/>
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<target dev='hda' bus='ide'/>
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<address type='drive' controller='0' bus='0' target='0' unit='0'/>
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</disk>
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<controller type='ide' index='0'>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
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</controller>
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<controller type='usb' index='0'>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
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</controller>
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<controller type='pci' index='0' model='pci-root'/>
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<input type='mouse' bus='ps2'/>
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<input type='keyboard' bus='ps2'/>
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<memballoon model='virtio'>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
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</memballoon>
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<memory model='nvdimm' access='private'>
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<source>
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<path>/tmp/nvdimm</path>
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</source>
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<target>
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<size unit='KiB'>523264</size>
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<node>0</node>
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</target>
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<address type='dimm' slot='0'/>
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</memory>
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</devices>
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</domain>
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