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4bb4109f7b
Previously libvirt's disk device XML only had a single attribute,
error_policy, to control both read and write error policy, but qemu
has separate options for controlling read and write. In one case
(enospc) a policy is allowed for write errors but not read errors.
This patch adds a separate attribute that sets only the read error
policy. If just error_policy is set, it will apply to both read and
write error policy (previous behavior), but if the new rerror_policy
attribute is set, it will override error_policy for read errors only.
Possible values for rerror_policy are "stop", "report", and "ignore"
("report" is the qemu-controlled default for rerror_policy when
error_policy isn't specified).
For consistency, the value "report" has been added to the possible
values for error_policy as well.
34 lines
1.1 KiB
XML
34 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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<driver name='qemu' type='qcow2' cache='none' error_policy='report' rerror_policy='ignore'/>
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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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<disk type='block' device='cdrom'>
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<driver name='qemu' type='raw'/>
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<source dev='/dev/HostVG/QEMUGuest2'/>
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<target dev='hdc' bus='ide'/>
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<readonly/>
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<address type='drive' controller='0' bus='1' unit='0'/>
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</disk>
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<controller type='ide' index='0'/>
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<memballoon model='virtio'/>
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</devices>
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</domain>
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