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docs: virtiofs: add section about ID remapping

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Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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Ján Tomko 2023-09-11 15:38:10 +02:00
parent 1a4412f568
commit 0d03ca17b1
1 changed files with 19 additions and 0 deletions
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docs/kbase/virtiofs.rst
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@ -59,6 +59,25 @@ Sharing a host directory with a guest
Note: this requires virtiofs support in the guest kernel (Linux v5.4 or later) Note: this requires virtiofs support in the guest kernel (Linux v5.4 or later)
Running unprivileged
====================
In unprivileged mode (``qemu:///session``), mapping user/group IDs is available
(since libvirt version 10.0.0). The root user (ID 0) in the guest will be mapped
to the current user on the host.
The rest of the IDs will be mapped to the subordinate user IDs specified
in `/etc/subuid`:
::
$ cat /etc/subuid
jtomko:100000:65536
$ cat /etc/subgid
jtomko:100000:65536
To manually tweak the user ID mapping, the `idmap` element can be used.
Optional parameters Optional parameters
=================== ===================