When we are in the emulated NUMA case, we need to make sure that all
existing apicid_to_node mappings that point to real node ID's now point
to the equivalent fake node ID's.
Signed-off-by: David Rientjes <[EMAIL PROTECTED]>
---
arch/x86_64/mm/srat.c | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -472,7 +472,7 @@ static int __init find_node_by_addr(const struct bootnode
*nodes,
*/
void __init acpi_fake_nodes(const struct bootnode *fake_nodes, int num_nodes)
{
- int i;
+ int i, j;
printk(KERN_INFO "Faking PXM affinity for fake nodes on real "
"topology.\n");
@@ -486,6 +486,13 @@ void __init acpi_fake_nodes(const struct bootnode
*fake_nodes, int num_nodes)
if (nid == NUMA_NO_NODE)
continue;
__acpi_map_pxm_to_node(pxm, nid);
+ /*
+ * For each apicid-to-node mapping that exists for this real
+ * node, it must now point to the fake node ID.
+ */
+ for (j = 0; j < MAX_LOCAL_APIC; j++)
+ if (apicid_to_node[j] == i)
+ apicid_to_node[j] = nid;
}
nodes_clear(nodes_parsed);
-
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