[Xen-devel] [PATCH v8 3/9] vnuma hook to debug-keys u

[Elena Ufimtseva <ufimtseva@xxxxxxxxx>]

Add debug-keys hook to display vnuma topology.

Signed-off-by: Elena Ufimtseva <ufimtseva@xxxxxxxxx>
---
 xen/arch/x86/numa.c |   35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/xen/arch/x86/numa.c b/xen/arch/x86/numa.c
index b141877..9efceac 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 +389,39 @@ 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


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