conf: numa: Add accessor to NUMA node's memory access mode

src/conf/numa_conf.c

@@ -769,7 +769,7 @@ virDomainNumaDefCPUFormat(virBufferPtr buf,
     virBufferAddLit(buf, "<numa>\n");
     virBufferAdjustIndent(buf, 2);
     for (i = 0; i < ncells; i++) {
-        memAccess = def->cells[i].memAccess;
+        memAccess = virDomainNumaGetNodeMemoryAccessMode(def, i);
 
         if (!(cpustr = virBitmapFormat(virDomainNumaGetNodeCpumask(def, i))))
             return -1;
@@ -832,3 +832,11 @@ virDomainNumaGetNodeCpumask(virCPUDefPtr numa,
 {
     return numa->cells[node].cpumask;
 }
+
+
+virNumaMemAccess
+virDomainNumaGetNodeMemoryAccessMode(virCPUDefPtr numa,
+                                     size_t node)
+{
+    return numa->cells[node].memAccess;
+}

src/conf/numa_conf.h

@@ -91,6 +91,9 @@ size_t virDomainNumaGetNodeCount(virCPUDefPtr numa)
 virBitmapPtr virDomainNumaGetNodeCpumask(virCPUDefPtr numa,
                                          size_t node)
     ATTRIBUTE_NONNULL(1);
+virNumaMemAccess virDomainNumaGetNodeMemoryAccessMode(virCPUDefPtr numa,
+                                                      size_t node)
+    ATTRIBUTE_NONNULL(1);
 
 /*
  * Formatters

src/libvirt_private.syms

@@ -631,6 +631,7 @@ virDomainNumaEquals;
 virDomainNumaFree;
 virDomainNumaGetNodeCount;
 virDomainNumaGetNodeCpumask;
+virDomainNumaGetNodeMemoryAccessMode;
 virDomainNumaNew;
 virDomainNumatuneFormatNodeset;
 virDomainNumatuneFormatXML;

src/qemu/qemu_command.c

@@ -4558,7 +4558,8 @@ qemuBuildMemoryBackendStr(unsigned long long size,
     virDomainHugePagePtr hugepage = NULL;
     virDomainNumatuneMemMode mode;
     const long system_page_size = virGetSystemPageSizeKB();
-    virNumaMemAccess memAccess = def->cpu->cells[guestNode].memAccess;
+    virNumaMemAccess memAccess = virDomainNumaGetNodeMemoryAccessMode(def->cpu, guestNode);
+
     size_t i;
     char *mem_path = NULL;
     virBitmapPtr nodemask = NULL;
@@ -7188,7 +7189,7 @@ qemuBuildNumaArgStr(virQEMUDriverConfigPtr cfg,
             if (rc == 0)
                 needBackend = true;
         } else {
-            if (def->cpu->cells[i].memAccess) {
+            if (virDomainNumaGetNodeMemoryAccessMode(def->cpu, i)) {
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                                _("Shared memory mapping is not supported "
                                  "with this QEMU"));