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d9e0d8204b
This introduces new attribute wrpolicy with only supported value as immediate. This will be an optional attribute with no defaults. This helps specify whether to skip the host page cache. When wrpolicy is specified, meaning when wrpolicy=immediate a writeback is explicitly initiated for the dirty pages in the host page cache as part of the guest file write operation. Usage: <filesystem type='mount' accessmode='passthrough'> <driver type='path' wrpolicy='immediate'/> <source dir='/export/to/guest'/> <target dir='mount_tag'/> </filesystem> Currently this only works with type='mount' for the QEMU/KVM driver. Signed-off-by: Deepak C Shetty <deepakcs@linux.vnet.ibm.com>
39 lines
1.1 KiB
XML
39 lines
1.1 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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<memory>219136</memory>
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<currentMemory>219136</currentMemory>
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<vcpu>1</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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<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' unit='0'/>
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</disk>
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<controller type='ide' index='0'/>
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<filesystem type='mount'>
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<source dir='/export/to/guest'/>
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<target dir='/import/from/host'/>
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</filesystem>
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<filesystem accessmode='mapped'>
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<driver type='path' wrpolicy='immediate'/>
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<source dir='/export/to/guest2'/>
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<target dir='/import/from/host2'/>
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</filesystem>
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<filesystem>
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<driver type='handle' wrpolicy='immediate'/>
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<source dir='/export/to/guest3'/>
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<target dir='/import/from/host3'/>
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</filesystem>
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</devices>
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</domain>
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