Re: [libvirt] [PATCH V1 1/2] cpu: Handle only high order 16 bits of PVR for IBM Power processors

IBM Power processors encode PVR as CPU family in higher 16 bits and a CPU version in lower 16 bits. Since there is no significant change in behavior between versions, there is no point to add every single CPU version in cpu_map.xml and check for the same in cpu_powerpc.c

Signed-off-by: Pradipta Kr. Banerjee <bpradip(a)in.ibm.com&gt; --- src/cpu/cpu_powerpc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/src/cpu/cpu_powerpc.c b/src/cpu/cpu_powerpc.c index 67cb9ff..18dbc99 100644 --- a/src/cpu/cpu_powerpc.c +++ b/src/cpu/cpu_powerpc.c @@ -93,7 +93,12 @@ ppcModelFindPVR(const struct ppc_map *map, model = map->models; while (model != NULL) { - if (model->data.pvr == pvr) + /*IBM PowerPC processors encode PVR as CPU family in higher 16 bits and + *a CPU version in lower 16 bits. Since there is no significant change + *in behavior between versions, there is no point to add every single + *CPU version in cpu_map.xml + */ + if ((model->data.pvr & 0xFFFF0000) == (pvr & 0xFFFF0000)) return model; model = model->next; -- 1.9.3 -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list