On 03/05/19 15:00, Michael S. Tsirkin wrote: > On Mon, Apr 29, 2019 at 11:55:56AM -0300, Eduardo Habkost wrote: >> irqchip=split and irqchip=kernel aren't guest ABI compatible, are >> they? > > Can you remind me why they aren't?
They are compatible if the userspace IOAPIC is configured with "-global ioapic.version=0x11". The userspace IOAPIC in addition supports version 0x20, which adds the EOI register (a requirement for interrupt remapping but not necessary outside that case), and makes it the default. Paolo
