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| author | Jasper Ras <jaspert.ras@gmail.com> | 2025-04-18 21:01:49 +0200 |
|---|---|---|
| committer | Jasper Ras <jaspert.ras@gmail.com> | 2025-04-18 21:01:49 +0200 |
| commit | a8a8e1f984f20c8008f3a5f57cd39b416eb73104 (patch) | |
| tree | 2262794b52d82c5fd9cbc55b503b52fafbd3af8a /Using Libvirt to manage QEMU image bitmaps.md | |
| parent | 5fa69499917fab7a026c90c8321dbcc22734106a (diff) | |
| parent | ab409a3701bf59dd73dc1e0324376bdac8b6d74f (diff) | |
vault backup: 2025-04-18 21:01:49
Diffstat (limited to 'Using Libvirt to manage QEMU image bitmaps.md')
| -rw-r--r-- | Using Libvirt to manage QEMU image bitmaps.md | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Using Libvirt to manage QEMU image bitmaps.md b/Using Libvirt to manage QEMU image bitmaps.md new file mode 100644 index 0000000..72942b3 --- /dev/null +++ b/Using Libvirt to manage QEMU image bitmaps.md @@ -0,0 +1,29 @@ +--- +tags: + - qemu + - libvirt +--- +To query info about block devices, including bitmaps we can use a QMP command: +``` +sudo virsh qemu-monitor-command --pretty instance-00026133 '{"execute": "query-block", "arguments": {}}' +``` + +There are six primary bitmap-management API commands: +- `block-dirty-bitmap-add` +- `block-dirty-bitmap-remove` +- `block-dirty-bitmap-clear` +- `block-dirty-bitmap-disable` +- `block-dirty-bitmap-enable` +- `block-dirty-bitmap-merge` +And one related query command: +- `query-block` + +The `node` argument to bitmap cmds can be found as `node-name` in `query-block` results. + + +#### Removing a dirty bitmap +Cannot be removed if it is busy. +Arguments: node, nameg + +--- +https://qemu-project.gitlab.io/qemu/interop/bitmaps.html
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