[Qemu-devel] Suggestion - trap window-close of VM

[Richard Neill <rn214@hermes.cam.ac.uk>]

Dear All,

A thought that occurred to me. If one is running a virtual machine (eg 
copy of WinXP), then simply closing the qemu window is a really bad 
idea, since it will effectively crash the guest.

BUT, given that the user expects to be running an *application* rather 
than an operating system, the natural thing to do is to close the qemu 
window, rather than remembering to first do a full shutdown of the 
guest. This is a very easy mistake to make.

I'd suggest that:

if ((qemu's window is closed from the GUI) and (the guest has not shut 
down)); then
	qemu should pop up a warning dialog:
		"Are you sure you want to quit - you should really shut
	down the guest first, or you may suffer dataloss [yes] [no]"
fi


Is it possible to know whether the guest has finished shutting down from 
the CPU state?


Regards

Richard