[libvirt] [PATCH v2] virsh: Fix to list online cpus using virsh capabilities

[Kothapally Madhu Pavan]

Virsh capabilities will list offline cpus as online when
libvirt is compiled with numactl option disabled. This
fix will list correct set of online cpus.
---
 src/nodeinfo.c |   43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/src/nodeinfo.c b/src/nodeinfo.c
index 22df95c..410c9de 100644
--- a/src/nodeinfo.c
+++ b/src/nodeinfo.c
@@ -1651,6 +1651,47 @@ nodeCapsInitNUMAFake(virCapsPtr caps ATTRIBUTE_UNUSED)
     if (VIR_ALLOC_N(cpus, ncpus) < 0)
         return -1;
 
+#ifdef __linux__
+    {
+    int cid = 0;
+    int onlinecpus = nodeinfo.cpus;
+
+    id = 0;
+    for (s = 0; s < nodeinfo.sockets; s++) {
+        for (c = 0; c < nodeinfo.cores; c++) {
+            for (t = 0; t < nodeinfo.threads; t++) {
+                if (virNodeGetCpuValue(SYSFS_CPU_PATH, id, "online", 1)) {
+                    cpus[cid].id = id;
+                    cpus[cid].socket_id = s;
+                    cpus[cid].core_id = c;
+                    if (!(cpus[cid].siblings = virBitmapNew(ncpus)))
+                        goto error;
+                    ignore_value(virBitmapSetBit(cpus[cid].siblings, id));
+                    cid++;
+                }
+
+                id++;
+            }
+        }
+    }
+
+    if (virCapabilitiesAddHostNUMACell(caps, 0,
+                                       nodeinfo.memory,
+                                       onlinecpus, cpus,
+                                       0, NULL,
+                                       0, NULL) < 0)
+        goto error;
+
+    return 0;
+
+ error:
+    for (; cid >= 0; cid--)
+        virBitmapFree(cpus[cid].siblings);
+    VIR_FREE(cpus);
+    return -1;
+    }
+#else
+    {
     id = 0;
     for (s = 0; s < nodeinfo.sockets; s++) {
         for (c = 0; c < nodeinfo.cores; c++) {
@@ -1680,6 +1721,8 @@ nodeCapsInitNUMAFake(virCapsPtr caps ATTRIBUTE_UNUSED)
         virBitmapFree(cpus[id].siblings);
     VIR_FREE(cpus);
     return -1;
+    }
+#endif
 }
 
 static int