Usage notes:
* On an M1 Mac, this will run in emulation.  It is slow, so be prepared for that.  Feel free to tweak settings, as there may be ways to make it faster!
* After downloading, you'll need to decompress the VM with bzip2:
bzip2 -d cs230-pintos.qcow2.bz2
* Create a new VM, add this file as a drive.  (both IDE and virtio work fine - theoretically, virtio is faster)
* The VM requires legacy (a.k.a. CSM) boot -- so disable UEFI.  That's in "System" and hidden by the "Show Advanced Settings" checkbox.  Disable "UEFI Boot".
* The default display card apparently only supports 640x480, which is basically unusable.  Switching to qxl-vga defaults to XGA resolution, but you can turn it up to 1080p with the "Displays" settings in the VM.
* Networking works fine on either the emulated Realtek default or virtio-net-pci, which will theoretically have better performance.
* Feel free to tweak settings, as there may be ways to make it faster!  We'd love to know if you find a setting which improves performance.