On Thu, Mar 14, 2013 at 10:14:12AM +0100, Paolo Bonzini wrote: > Il 14/03/2013 09:15, Hu Tao ha scritto: > > pvevent device is used to send guest panic event from guest to qemu. > > > > When guest panic happens, pvevent device driver will write a event > > number to IO port 0x505(which is the IO port occupied by pvevent device, > > by default). On receiving the event, pvevent device will pause guest > > cpu(s), and send a qmp event QEVENT_GUEST_PANICKED. > > > > TODO: make the IO port configurable > > The port is already configurable as far as the device is concerned; when > you add the port to the PC boards you will have to wind up fw-cfg.
Yes, by configurable, I mean to pass io port through fw-cfg to seabios and patch it.