numa: move numa global variable nb_numa_nodes into MachineState

Add struct NumaState in MachineState and move existing numa global
nb_numa_nodes(renamed as "num_nodes") into NumaState. And add variable
numa_support into MachineClass to decide which submachines support NUMA.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Suggested-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20190809065731.9097-3-tao3.xu@intel.com>
[ehabkost: include hw/boards.h again to fix build failures]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c
index 06a7c018d7..0592818447 100644
--- a/hw/pci-bridge/pci_expander_bridge.c
+++ b/hw/pci-bridge/pci_expander_bridge.c
@@ -21,6 +21,7 @@
 #include "qemu/error-report.h"
 #include "qemu/module.h"
 #include "sysemu/numa.h"
+#include "hw/boards.h"
 
 #define TYPE_PXB_BUS "pxb-bus"
 #define PXB_BUS(obj) OBJECT_CHECK(PXBBus, (obj), TYPE_PXB_BUS)
@@ -213,9 +214,15 @@ static void pxb_dev_realize_common(PCIDevice *dev, bool pcie, Error **errp)
     PCIBus *bus;
     const char *dev_name = NULL;
     Error *local_err = NULL;
+    MachineState *ms = MACHINE(qdev_get_machine());
+
+    if (ms->numa_state == NULL) {
+        error_setg(errp, "NUMA is not supported by this machine-type");
+        return;
+    }
 
     if (pxb->numa_node != NUMA_NODE_UNASSIGNED &&
-        pxb->numa_node >= nb_numa_nodes) {
+        pxb->numa_node >= ms->numa_state->num_nodes) {
         error_setg(errp, "Illegal numa node %d", pxb->numa_node);
         return;
     }