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[Qemu-devel] [PATCH 3/3] numa: Reject configuration if not all node IDs
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PATCH 3/3] numa: Reject configuration if not all node IDs are present |
Date: |
Thu, 26 Jun 2014 18:33:20 -0300 |
We don't support sparse NUMA node IDs yet, so this changes QEMU to
reject configs where not all nodes are present.
Signed-off-by: Eduardo Habkost <address@hidden>
---
numa.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/numa.c b/numa.c
index e93407a..96fe5dd 100644
--- a/numa.c
+++ b/numa.c
@@ -160,9 +160,24 @@ error:
void set_numa_nodes(void)
{
+ int i;
+
+ assert(max_numa_nodeid <= MAX_NODES);
+
+ /* No support for sparse NUMA node IDs yet: */
+ for (i = max_numa_nodeid - 1; i >= 0; i--) {
+ /* Report large node IDs first, to make mistakes easier to spot */
+ if (!numa_info[i].present) {
+ error_report("numa: Node ID missing: %d", i);
+ exit(1);
+ }
+ }
+
+ /* This must be always true if all nodes are present: */
+ assert(nb_numa_nodes == max_numa_nodeid);
+
if (nb_numa_nodes > 0) {
uint64_t numa_total;
- int i;
if (nb_numa_nodes > MAX_NODES) {
nb_numa_nodes = MAX_NODES;
--
1.9.3