Paul Brook wrote: > On Thursday 21 May 2009, Avi Kivity wrote: > >> Paul Brook wrote: >> >>>>> which is a trivial wrapper around stl_phys. >>>>> >>>> OK, but I'm adding another level of indirection in the middle, >>>> to allow us to tie in a kvm backend. >>>> >>> kvm has no business messing with the PCI device code. >>> >> kvm has a fast path for irq injection. If qemu wants to support it we >> need some abstraction here. >> > > Fast path from where to where? Having the PCI layer bypass/re-implement the > APIC and inject the interrupt directly into the cpu core sounds a > particularly > bad idea. >
kvm implements the APIC in the host kernel (qemu upstream doesn't support this yet). The fast path is wired to the in-kernel APIC, not the cpu core directly. The idea is to wire it to UIO for device assignment, to a virtio-device implemented in the kernel, and to qemu. -- error compiling committee.c: too many arguments to function _______________________________________________ Virtualization mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/virtualization
