[PATCH RFC v2 7/7] xen/vNUMA: adds vNUMA to NUMA debug-key

[Elena Ufimtseva <ufimtseva@gmail.com>]

Prints basic information about vNUMA topology
for vNUMA enabled domains when issuing debug-key 'u'.

Signed-off-by: Elena Ufimtseva <ufimtseva@gmail.com>
---
 xen/arch/x86/numa.c |   23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/xen/arch/x86/numa.c b/xen/arch/x86/numa.c
index b141877..7980e54 100644
--- a/xen/arch/x86/numa.c
+++ b/xen/arch/x86/numa.c
@@ -347,7 +347,7 @@ EXPORT_SYMBOL(node_data);
 static void dump_numa(unsigned char key)
 {
 	s_time_t now = NOW();
-	int i;
+	int i, j;
 	struct domain *d;
 	struct page_info *page;
 	unsigned int page_num_node[MAX_NUMNODES];
@@ -389,6 +389,27 @@ static void dump_numa(unsigned char key)
 
 		for_each_online_node(i)
 			printk("    Node %u: %u\n", i, page_num_node[i]);
+                if(d->vnuma.nr_vnodes > 0) 
+                {
+                    printk("    Domain has %d vnodes\n", d->vnuma.nr_vnodes);
+                    for_each_online_node(i)
+                    {
+                        
+                        printk("        pnode %d: vnodes: ", i); 
+                        for(j = 0; j < d->vnuma.nr_vnodes; j++) {
+                            if (d->vnuma.vnode_to_pnode[j] == i)
+                            printk("%d (%Lu), ", j, (unsigned long long) 
+                                                   (d->vnuma.vnuma_memblks[j].end -
+                                                   d->vnuma.vnuma_memblks[j].start) 
+                                                   >> 20);
+                        }
+                        printk("\n");
+                    }
+                    printk("    Domain vcpu to vnode: ");
+                    for(j = 0; j < d->max_vcpus; j++) 
+                        printk("%d ", d->vnuma.vcpu_to_vnode[j]);
+                    printk("\n");
+                }
 	}
 
 	rcu_read_unlock(&domlist_read_lock);
-- 
1.7.10.4