VirtualBox configuration options
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The configuration requires an attribute named vbox_file with the name of the
vbox configuration to be used (.vbox).
<config vbox_file="file.vbox">
XHCI controller
===============
The virtual XHCI controller can be enabled with the following
configuration option:
<config xhci="yes">
CAPSLOCK
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<config capslock="ROM">
If the capslock attribute is set to "ROM", virtualbox will open a connection
to the ROM named "capslock" and expect in the top-level node a attribute
'enabled' (yes|no). If the ROM capslock differ from the internal VM capslock,
the VMM will trigger aritifical capslock key events to the VM.
