From f9034731fa234a4b5efa1d2d6147fe1e798b6d36 Mon Sep 17 00:00:00 2001 From: Jasper Ras Date: Fri, 4 Apr 2025 14:31:53 +0200 Subject: vault backup: 2025-04-04 14:31:53 --- Using Libvirt to manage QEMU image bitmaps.md | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 Using Libvirt to manage QEMU image bitmaps.md (limited to 'Using Libvirt to manage QEMU image bitmaps.md') 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..92eef5f --- /dev/null +++ b/Using Libvirt to manage QEMU image bitmaps.md @@ -0,0 +1,21 @@ +--- +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. \ No newline at end of file -- cgit v1.2.3