Il 27/08/2012 15:55, Anthony Liguori ha scritto: >> > This patch provides a way to optionally suppress spurious interrupts, >> > as a workaround for systems described below: >> > >> > Some old operating systems do not handle spurious interrupts well, >> > and qemu tends to generate them significantly more often than >> > real hardware. > This is the wrong approach. You add a LostTickPolicy property to the > i8259 device.
Isn't the i8254 the one that would need a LostTickPolicy? But this seems like a bug that is either in the i8259 emulation, or in the firmware. Your own suggestion of setting IRQ2 to level-triggered in SeaBIOS is definitely a good one. Paolo
