On Mon, Dec 12, 2011 at 9:32 AM, Avi Kivity <avi at redhat.com> wrote: > On 12/11/2011 12:25 PM, Christoffer Dall wrote: >> From: Marc Zyngier <marc.zyngier at arm.com> >> >> A guest may need to know which CPU it has booted on (and Linux does). >> Now that we can run KVM on a SMP host, QEMU may be running on any > > s/QEMU/userspace/ > >> CPU. In that case, directly reading MPIDR will give an inconsistent >> view on the guest CPU number (among other problems). >> >> The solution is to use the VMPIDR register, which is computed by >> using the host MPIDR and overriding the low bits with KVM vcpu_id. >> >> Signed-off-by: Marc Zyngier <marc.zyngier at arm.com> > > Since you're posting the patch for (eventual) inclusion, you need to > sign off as well. > I merged this into the world-switch patch. Can I add mark as signed-off-by in there then or should he really have written that entire patch then. Marc?