configs: enable NUMA_BALANCING since dom0 and domU can be NUMA-aware now

Signed-off-by: Steven Noonan <steven@edera.dev>

Author: tycho

configs/x86_64/host.config

@@ -4912,6 +4912,7 @@ CONFIG_XEN_BALLOON=y
 CONFIG_XEN_SCRUB_PAGES_DEFAULT=y
 CONFIG_XEN_DEV_EVTCHN=m
 CONFIG_XEN_BACKEND=y
+CONFIG_XEN_BACKEND_NUMA_AFFINITY=y
 CONFIG_XENFS=y
 CONFIG_XEN_COMPAT_XENFS=y
 CONFIG_XEN_SYS_HYPERVISOR=y
@@ -5991,3 +5992,7 @@ CONFIG_MHP_DEFAULT_ONLINE_TYPE_ONLINE_AUTO=y
 CONFIG_MHP_MEMMAP_ON_MEMORY=y
 CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
 CONFIG_XEN_MEMORY_HOTPLUG_LIMIT=512
+
+# NUMA balancing support
+CONFIG_NUMA_BALANCING=y
+CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y

configs/x86_64/zone.config

@@ -1726,6 +1726,7 @@ CONFIG_XEN_MEMORY_HOTPLUG_LIMIT=512
 CONFIG_XEN_SCRUB_PAGES_DEFAULT=y
 CONFIG_XEN_DEV_EVTCHN=y
 CONFIG_XEN_BACKEND=y
+CONFIG_XEN_BACKEND_NUMA_AFFINITY=y
 CONFIG_XENFS=y
 CONFIG_XEN_COMPAT_XENFS=y
 CONFIG_XEN_SYS_HYPERVISOR=y
@@ -2391,3 +2392,7 @@ CONFIG_DEBUG_INFO_NONE=n
 CONFIG_DEBUG_INFO_BTF=y
 CONFIG_DEBUG_INFO_BTF_MODULES=y
 CONFIG_DEBUG_INFO_COMPRESSED_ZSTD=y
+
+# NUMA balancing support
+CONFIG_NUMA_BALANCING=y
+CONFIG_NUMA_BALANCING_DEFAULT_ENABLED=y