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1a4df34a0f
Add a new file checkpoint_conf.c that performs the translation to and from new XML describing a checkpoint. The code shares a common base class with snapshots, since a checkpoint similarly represents the domain state at a moment in time. Add some basic testing of round trip XML handling through the new code. Of note - this code intentionally differs from snapshots in that XML schema validation is unconditional, rather than based on a public API flag. We have many existing interfaces that still need to add a flag for opt-in schema validation, but those interfaces have existing clients that may not have been producing strictly-compliant XML, or we may still uncover bugs where our RNG grammar is inconsistent with our code (where omitting the opt-in flag allows existing apps to keep working while waiting for an RNG patch). But since checkpoints are brand-new, it's easier to ensure the code matches the schema by always using the schema. If needed, a later patch could extend the API and add a flag to turn on to request schema validation, rather than having it forced (possibly just the validation of the <domain> sub-element during REDEFINE) - but if a user encounters XML that looks like it should be good but fails to validate with our RNG schema, they would either have to upgrade to a new libvirt that adds the new flag, or upgrade to a new libvirt that fixes the RNG schema, which implies adding such a flag won't help much. Also, the redefine flag requires the <domain> sub-element to be present, rather than catering to historical back-compat to older versions. Signed-off-by: Eric Blake <eblake@redhat.com>
54 lines
1.9 KiB
XML
54 lines
1.9 KiB
XML
<domaincheckpoint>
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<name>1525889631</name>
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<description>Completion of updates after OS install</description>
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<parent>
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<name>1525111885</name>
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</parent>
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<creationTime>1525889631</creationTime>
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<disks>
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<disk name='vda' checkpoint='bitmap' bitmap='1525889631'/>
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<disk name='vdb' checkpoint='no'/>
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</disks>
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<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 unit='KiB'>219136</memory>
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<currentMemory unit='KiB'>219136</currentMemory>
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<vcpu placement='static'>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-system-i686</emulator>
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<disk type='file' device='disk'>
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<driver name='qemu' type='qcow2'/>
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<source file='/tmp/data.img'/>
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<target dev='vda' bus='virtio'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
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</disk>
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<disk type='file' device='disk'>
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<driver name='qemu' type='qcow2'/>
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<source file='/tmp/logs.img'/>
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<target dev='vdb' bus='virtio'/>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
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</disk>
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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='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='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='none'/>
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</devices>
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</domain>
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<active>0</active>
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</domaincheckpoint>
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