Hello! > In order to support up to 128 cores with GIC-500 (GICv3 implementation) > affinity1 must be used. GIC-500 support up to 32 clusters with up to > 8 cores in a cluster. So for example, if one wishes to have 16 cores, > the options are: 2 clusters of 8 cores each, 4 clusters with 4 cores each
I have found one more concern. Are you really sure about this scheme ? I am currently experimenting with KVM, and it seems to have 16 CPUs per cluster, at least on my machine. Actually i suggest that KVM inherits the mapping from the host. Can we do the same? I will take a look at kvmtool, how it determines these IDs. But hardcoded scheme is definitely wrong. Cc'ed Ashok because he might also be interested. Kind regards, Pavel Fedin Expert Engineer Samsung Electronics Research center Russia