Re: [Qemu-devel] [PATCH 2/3] runstate: introduce suspended state

[Gerd Hoffmann <kraxel@redhat.com>]

  Hi,

> I think that the question we have to answer is: apart from the keyboard
> and mouse, is there any device that wants to run while qemu is suspended?

pretty much anything which may wake up the guest.  The nics for example
for wake-on-lan.  I'm not sure whenever they care about the runstate at
all though.

Mouse and keyboard ignore events when the guest is stopped so if you
type into a vnc client for a stopped guest the events wouldn't get
queued up and cause unwanted effects when unpausing the guest.  When
suspended we want forward the events though so wakeup-by-keyboard works.

Not sure whenever we have simliar logic elsewhere (like stop queuing
network packets when the guest doesn't run).

cheers,
  Gerd