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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>
14 lines
821 B
Plaintext
14 lines
821 B
Plaintext
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M \
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pc -m 214 -smp 1 -nographic -nodefconfig -nodefaults -monitor \
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unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda \
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/dev/HostVG/QEMUGuest1 -fsdev local,security_model=passthrough,id=fsdev-fs0,\
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path=/export/to/guest -device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,\
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mount_tag=/import/from/host,bus=pci.0,addr=0x3 \
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-fsdev local,security_model=mapped,writeout=immediate,id=fsdev-fs1,\
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path=/export/to/guest2 -device virtio-9p-pci,id=fs1,fsdev=fsdev-fs1,\
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mount_tag=/import/from/host2,bus=pci.0,addr=0x4 \
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-fsdev handle,writeout=immediate,id=fsdev-fs2,\
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path=/export/to/guest3 -device virtio-9p-pci,id=fs2,fsdev=fsdev-fs2,\
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mount_tag=/import/from/host3,bus=pci.0,addr=0x5 \
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-usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6
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