# VMs

## HOW-TO
To start (or create) a VM, go in the desired folder and run
```console
$ ./run.sh
```

### CPU/RAM limit
See QEMU(1) for CPU limit<br>.
Default RAM flag: `-m "2G,maxmem=$((MAX_RAM - 2))G"`.<br>
You can limit the CPU/RAM usage with these flags:
```
./run.sh -smp "$NB_CPUS,maxcpus=$MAX_CPUS" \
         -m "${RAM}G,maxmem=${MAX_RAM}G"
```
You can make this permanent in run.sh (this VM only) or lib.sh (all VMs).

### Port forwarding
To forward host port 2222 to guest 22:
```
./run.sh -nic user,hostfwd=tcp::2222-:22
```
You can make this permanent in run.sh (this VM only) or lib.sh (all VMs).

### USB passthrough

If you need USB passthrough, uncomment and fill in the corresponding line in
`run.sh`.
[You may need root privileges](https://wiki.archlinux.org/title/QEMU#Pass-through_host_USB_device).

## See also

<https://github.com/quickemu-project/quickemu>