Features/DriveRefactoring: Difference between revisions
(Created page with '== Summary == Refactor -drive option to better reflect separation of backend and frontend. == Owner == * '''Name:''' Anthony Liguori * '''Email:''' anth…') |
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To create a separate drive backend, today we need to specify: | To create a separate drive backend, today we need to specify: | ||
-drive file=/path/to/image,if=none,id=foo | -drive file=/path/to/image,if=none,id=foo | ||
-device virtio-blk-pci,drive=foo | -device virtio-blk-pci,drive=foo | ||
This is awkward to use at best and is not symmetric to other options in qemu. This feature proposes a new syntax: | This is awkward to use at best and is not symmetric to other options in qemu. This feature proposes a new syntax: | ||
-blkdev file=/path/to/image,id=foo | -blkdev file=/path/to/image,id=foo | ||
-device virtio-vlk-pci,blkdev=foo | -device virtio-vlk-pci,blkdev=foo | ||
-blkdev only takes valid backend options. Like netdev and fsdev, the same name is used to connect the backend. -drive would continue to be supported as a syntactic short-cut. | |||
== Status == | |||
The feature has been completed (but it's called '-blockdev' now and not 'blkdev') | |||
[[Category:Completed feature pages]] | |||
Latest revision as of 14:59, 9 July 2020
Summary
Refactor -drive option to better reflect separation of backend and frontend.
Owner
- Name: Anthony Liguori
- Email: anthony@codemonkey.ws
Detailed Summary
To create a separate drive backend, today we need to specify:
-drive file=/path/to/image,if=none,id=foo -device virtio-blk-pci,drive=foo
This is awkward to use at best and is not symmetric to other options in qemu. This feature proposes a new syntax:
-blkdev file=/path/to/image,id=foo -device virtio-vlk-pci,blkdev=foo
-blkdev only takes valid backend options. Like netdev and fsdev, the same name is used to connect the backend. -drive would continue to be supported as a syntactic short-cut.
Status
The feature has been completed (but it's called '-blockdev' now and not 'blkdev')