168468fe19
In many cases the target of a convert operation is a newly provisioned target that the user knows is blank (reads as zero). In this situation there is no requirement for qemu-img to wastefully zero out the entire device. Add a new option, --target-is-zero, allowing the user to indicate that an existing target device will return zeros for all reads. Signed-off-by: David Edmondson <david.edmondson@oracle.com> Message-Id: <20200205110248.2009589-2-david.edmondson@oracle.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> |
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| .. | ||
| config | ||
| devel | ||
| interop | ||
| specs | ||
| sphinx | ||
| spin | ||
| system | ||
| amd-memory-encryption.txt | ||
| arm-cpu-features.rst | ||
| barrier.txt | ||
| block-replication.txt | ||
| bootindex.txt | ||
| can.txt | ||
| ccid.txt | ||
| COLO-FT.txt | ||
| colo-proxy.txt | ||
| conf.py | ||
| cpu-hotplug.rst | ||
| generic-loader.txt | ||
| hyperv.txt | ||
| igd-assign.txt | ||
| image-fuzzer.txt | ||
| index.html.in | ||
| index.rst | ||
| memory-hotplug.txt | ||
| microvm.rst | ||
| multi-thread-compression.txt | ||
| multiseat.txt | ||
| nvdimm.txt | ||
| pci_expander_bridge.txt | ||
| pcie_pci_bridge.txt | ||
| pcie.txt | ||
| pr-manager.rst | ||
| pvrdma.txt | ||
| qcow2-cache.txt | ||
| qdev-device-use.txt | ||
| qemu_logo.pdf | ||
| qemu-cpu-models.texi | ||
| qemupciserial.inf | ||
| rdma.txt | ||
| replay.txt | ||
| security.texi | ||
| spice-port-fqdn.txt | ||
| throttle.txt | ||
| usb2.txt | ||
| usb-storage.txt | ||
| vfio-ap.txt | ||
| virtio-balloon-stats.txt | ||
| virtio-net-failover.rst | ||
| virtio-pmem.rst | ||
| xbzrle.txt | ||
| xen-save-devices-state.txt | ||