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To allow using -blockdev with blockjobs QEMU needs to reopen files in
read-write mode when modifying the backing chain. To achieve this we
need to use 'auto-read-only' for the backing files rather than the
normal 'read-only' property. That way qemu knows that the files need to
be reopened.
Note that the format drivers (e.g. qcow2) are still opened with the
read-only property enabled when being a member of the backing chain
since they are supposed to be immutable unless a block job is started.
QEMU v4.0 (since commit 23dece19da4) allows also dynamic behaviour for
auto-read-only which allows us to use sVirt as we only grant write
permissions to files when doing a blockjob.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add testing of the host specification part so that we can be sure that
no image/host specific data will be present.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
To allow using -blockdev with RBD we need to support the recently added
RBD authentication.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
To keep feature parity, we need to be able to format the PR manager
alias when using blockdev.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The next patch will forbid the old qcow2 encryption completely. Remove
it from the tests.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reference the storage via node name rather than inlining it. This is
the approach that will be used with -blockdev/blockdev-add since it
allows more control and is more future proof.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Make sure that 'host_device' is generated for type='block'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The test cases would correspond to the following -drive command lines:
file-backing_basic-detect.xml:
-drive file=/var/lib/libvirt/images/a,format=qcow,if=none,id=drive-dummy,detect-zeroes=on
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-backing_basic-unmap-detect.xml:
-drive file=/var/lib/libvirt/images/a,format=qcow,if=none,id=drive-dummy,discard=unmap,detect-zeroes=unmap
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-backing_basic-unmap-ignore.xml:
-drive file=/var/lib/libvirt/images/a,format=qcow,if=none,id=drive-dummy,discard=ignore,detect-zeroes=on
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-backing_basic-unmap.xml:
-drive file=/var/lib/libvirt/images/a,format=qcow,if=none,id=drive-dummy,discard=unmap
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
iscsi and rbd support authentication of the connection. Combine it with
encryption of qcow2.
The top level disk image would generate the following '-drive' cmdline:
-drive file=rbd:rbdpool/rbdimg:id=testuser-rbd:auth_supported=cephx\;none:
mon_host=host1.example.com\;host2.example.com,
file.password-secret=node-a-s-secalias,encrypt.format=luks,
encrypt.key-secret=node-b-f-encalias,format=qcow2,
if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Add tests for backing chain handling, including a very long chain which
is fully specified in the XML and an unterminated chain.
The top level disk image would generate the following '-drive':
file-qcow2-backing-chain-encryption.xml:
-drive file=/var/lib/libvirt/images/a,encrypt.format=luks,
encrypt.key-secret=node-b-f-encalias,format=qcow2,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-qcow2-backing-chain-noopts.xml:
-drive file=/var/lib/libvirt/images/rhel7.3.1507297895,format=qcow2,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-qcow2-backing-chain-unterminated.xml:
-drive file=/var/lib/libvirt/images/rhel7.3.1507297895,format=qcow2,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Apart from adding test data add a function which sets up fake secrets
for the test.
The top level disk image would generate the following '-drive' cmdline:
-drive file=/path/luks.img,key-secret=test1-encalias,format=luks,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Test that the 'aio' option is applied correctly for the 'file' protocol
backend and across the backing chain.
The top level disk image would generate the following '-drive' cmdline:
file-backing_basic-aio_threads:
-drive file=/var/lib/libvirt/images/a,format=qcow,if=none,id=drive-dummy,aio=threads
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-raw-aio_native:
-drive file=/path/to/i.img,format=raw,if=none,id=drive-dummy,cache=none,aio=native
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy,write-cache=on
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Test mapping of the 'FAT' disk format to 'vvfat' in qemu.
The top level disk image would generate the following '-drive' cmdline:
dir-fat-readonly.xml:
-drive file=fat:/var/somefiles,if=none,id=drive-dummy,readonly=on
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
dir-fat-floppy.xml
-drive file=fat:floppy:/var/somefiles,if=none,id=drive-dummy,readonly=on
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Formats supporting backing chain such as qed, vmdk, don't have any other
parameters than the backing store and 'qcow' has only encryption params
which will be tested extra. Add this test case so they are covered since
any further test cases will mainly care about 'qcow2' and 'raw'.
The top level disk image would generate the following '-drive' cmdline:
-drive file=/var/lib/libvirt/images/a,format=qed,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Similarly to the 'raw' case add tests for bochs, cloop, dmg, ploop, vdi
vhd, and vpc. Covering all supported non-backing formats.
Note that the JSON name for 'ploop' maps to 'parallels' and 'vhd' maps
to 'vhdx'.
Files added here would result in the followint configs:
file-bochs-noopts.xml:
-drive file=/path/to/i.img,format=bochs,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-cloop-noopts.xml:
-drive file=/path/to/i.img,format=cloop,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-dmg-noopts.xml:
-drive file=/path/to/i.img,format=dmg,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-ploop-noopts.xml:
-drive file=/path/to/i.img,format=ploop,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-vdi-noopts.xml:
-drive file=/path/to/i.img,format=vdi,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-vhd-noopts.xml:
-drive file=/path/to/i.img,format=vhd,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
file-vpc-noopts.xml:
-drive file=/path/to/i.img,format=vpc,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Test the JSON props generator with a very simple 'raw' image with no
other options. The node-names for the image are 31 bytes long so that we
validate our node name detector.
The top level disk image would generate the following '-drive' cmdline:
-drive file=/var/lib/libvirt/images/i.img,format=raw,if=none,id=drive-dummy
-device virtio-blk-pci,scsi=off,drive=drive-dummy,id=dummy
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Add a test infrastructure that will allow testing the JSON object
generator used for generating data to use with blockdev-add.
The resulting disk including the backing chain is validated to conform
to the QAPI schema and the expected output files.
The first test cases make sure that libvirt will not allow nodenames
exceeding 31 chars.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
