[Qemu-devel] ARM CPU affinities

[Peter Crosthwaite]

Hi Peter,

I am looking at this:

static void arm_cpu_initfn(Object *obj)
{
    ...
    Aff1 = cs->cpu_index / ARM_CPUS_PER_CLUSTER;
    Aff0 = cs->cpu_index % ARM_CPUS_PER_CLUSTER;
    cpu->mp_affinity = (Aff1 << ARM_AFF1_SHIFT) | Aff0;


Should we push this up to the machine model? I am trying to fix a
machine where Aff1 of the one and only cluster is non-zero. The kernel
SMP support barfs when Aff1 is mismatched to whats in the DTB (CPU reg
property).

I think this modulo 8 starting from 0:0 policy might be specific to mach-virt?

Regards,
Peter