On Fri, 12 Mar 2021 at 09:20, LIU Zhiwei <zhiwei_...@c-sky.com> wrote: > > Thanks very much. By the way, in my opinion, the signal line in GICv2 > solution is > something like "QEMU-specific weirdness" .
No, for the GICv2 that really is how the hardware works -- the interrupt controller talks to the CPU via the classic IRQ and FIQ lines, and the CPU itself has no particular access to what the interrupt controller itself is doing. For GICv3 you have more of a point... thanks -- PMM
