On Fri, 29 May 2015 15:26:57 +0300 Pavel Fedin <p.fe...@samsung.com> wrote:
> Hello! > > > That's what I see as correct way to go > > and along the way teach KVM to not derive mpidr encoding from vcpuid > > and use QEMU provided mpidr value, that way mpidr would be consistent. > > Yes, and this would make modelling of real hardware working much better. > However, > unfortunately, i have just tested it, and it does not work. MPIDR can be set > for the vCPU, > and i believe it will even give back the value when read. But PSCI completely > ignores this > setting. > > > As it currently stands QEMU notion of mpidr and KVM's will diverge > > onece CPU count goes above 16 CPUs. > > Yes, but fortunately the code which cares about it (PSCI and Shlomo's GICv3 > software > emulation) is not used with KVM. So i think we have no other choice if we > want to be > compatible with current KVM APIs. Well KVM side should be fixed instead of driving us along wrong route. > > Kind regards, > Pavel Fedin > Expert Engineer > Samsung Electronics Research center Russia > >
