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qcow2.py: Subcommand for changing header fields
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
qemu-iotests: qcow2: Test growing large refcount table
Actually writing all the content with 512 byte sector size would takeforever, therefore build the image file with a Python script and useqemu-io for the last write that actually triggers the refcount table...
qemu-iotests: add qcow2.py set-feature-bit command
This new command sets feature bits in the image file header:
qcow2.py set-feature-bit incompatible|compatible|autoclear <bit>
The bit number must be in the range [0, 64).
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>...
qemu-iotests: Fix test 031 for qcow2 v3 support
qcow2.py must be updated to work with version 3 images at all, theoutput has changed since the feature table extension has been added, andversion 2 and version 3 images can't possibly have the same test output....
qemu-iotests: qcow2.py
This adds a tool that is meant to inspect and edit qcow2 files in alow-level way, that wouldn't be possible with qemu-img/io, for exampleby adding yet unknown extensions or flags. This way we can test whetherqemu deals properly with future backwards compatible extensions....