On 03/15/2012 01:25 PM, Jan Kiszka wrote: > >> > > There was such vm exit (KVM_EXIT_HYPERCALL), but it was deemed to be a > > bad idea. > > BTW, this would help a lot in emulating hypercalls of other hypervisors > (or of KVM's VAPIC in the absence of in-kernel irqchip - I had to jump > through hoops therefore) in user space. Not all those hypercall handlers > actually have to reside in the KVM module. >
That is true. On the other hand the hypercall ABI might go to pieces if there was no central implementation. -- error compiling committee.c: too many arguments to function
