[PATCH v9 3/9] vnuma hook to debug-keys u

[Elena Ufimtseva <ufimtseva@gmail.com>]

Add debug-keys hook to display vnuma topology.

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Signed-off-by: Elena Ufimtseva <ufimtseva@gmail.com>
---
 xen/arch/x86/numa.c |   31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/xen/arch/x86/numa.c b/xen/arch/x86/numa.c
index b141877..175f9d8 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, n, err;
 	struct domain *d;
 	struct page_info *page;
 	unsigned int page_num_node[MAX_NUMNODES];
@@ -389,6 +389,35 @@ 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) {
+			printk("    Domain has %u vnodes, %u vcpus\n",
+				   d->vnuma->nr_vnodes, d->max_vcpus);
+			for (i = 0; i < d->vnuma->nr_vnodes; i++) {
+				err = snprintf(keyhandler_scratch, 12, "%u",
+						       d->vnuma->vnode_to_pnode[i]);
+				if (err < 0 || d->vnuma->vnode_to_pnode[i] == NUMA_NO_NODE)
+					snprintf(keyhandler_scratch, 3, "???");
+
+				printk("        vnode %3u - pnode %s,", i, keyhandler_scratch);
+				printk(" %"PRIu64" MB, ", (d->vnuma->vmemrange[i].end -
+					   d->vnuma->vmemrange[i].start) >> 20);
+
+				printk("vcpu nrs: ");
+				for (j = 0, n = 0; j < d->max_vcpus; j++) {
+					if (d->vnuma->vcpu_to_vnode[j] == i) {
+						if ( ((n + 1) % 8) == 0 )
+							printk("%d\n", j);
+						else if ( !(n % 8) && n != 0 )
+							printk("%s%d ", "             ", j);
+						else
+							printk("%d ", j);
+						n++;
+					}
+				}
+				printk("\n");
+			}
+		}
 	}
 
 	rcu_read_unlock(&domlist_read_lock);
-- 
1.7.10.4