numa: move default mapping init to machine

there is no need use cpu_index_to_instance_props() for setting
default cpu -> node mapping. Generic machine code can do it
without cpu_index by just enabling already preset defaults
in possible_cpus.

PS:
as bonus it makes one less user of cpu_index_to_instance_props()

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1496161442-96665-3-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

1 files changed, 23 insertions, 10 deletions

diff --git a/hw/core/machine.c b/hw/core/machine.c
index 3adebf14c4..c1434e6a69 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -701,26 +701,39 @@ static char *cpu_slot_to_string(const CPUArchId *cpu)
     return g_string_free(s, false);
 }
 
-static void machine_numa_validate(MachineState *machine)
+static void machine_numa_finish_init(MachineState *machine)
 {
     int i;
+    bool default_mapping;
     GString *s = g_string_new(NULL);
     MachineClass *mc = MACHINE_GET_CLASS(machine);
     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(machine);
 
     assert(nb_numa_nodes);
     for (i = 0; i < possible_cpus->len; i++) {
+        if (possible_cpus->cpus[i].props.has_node_id) {
+            break;
+        }
+    }
+    default_mapping = (i == possible_cpus->len);
+
+    for (i = 0; i < possible_cpus->len; i++) {
         const CPUArchId *cpu_slot = &possible_cpus->cpus[i];
 
-        /* at this point numa mappings are initilized by CLI options
-         * or with default mappings so it's sufficient to list
-         * all not yet mapped CPUs here */
-        /* TODO: make it hard error in future */
         if (!cpu_slot->props.has_node_id) {
-            char *cpu_str = cpu_slot_to_string(cpu_slot);
-            g_string_append_printf(s, "%sCPU %d [%s]", s->len ? ", " : "", i,
-                                   cpu_str);
-            g_free(cpu_str);
+            if (default_mapping) {
+                /* fetch default mapping from board and enable it */
+                CpuInstanceProperties props = cpu_slot->props;
+                props.has_node_id = true;
+                machine_set_cpu_numa_node(machine, &props, &error_fatal);
+            } else {
+                /* record slots with not set mapping,
+                 * TODO: make it hard error in future */
+                char *cpu_str = cpu_slot_to_string(cpu_slot);
+                g_string_append_printf(s, "%sCPU %d [%s]",
+                                       s->len ? ", " : "", i, cpu_str);
+                g_free(cpu_str);
+            }
         }
     }
     if (s->len && !qtest_enabled()) {
@@ -738,7 +751,7 @@ void machine_run_board_init(MachineState *machine)
     MachineClass *machine_class = MACHINE_GET_CLASS(machine);
 
     if (nb_numa_nodes) {
-        machine_numa_validate(machine);
+        machine_numa_finish_init(machine);
     }
     machine_class->init(machine);
 }