This is a note to let you know that I've just added the patch titled
ACPI: NUMA: Add CXL CFMWS 'nodes' to the possible nodes set
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-numa-add-cxl-cfmws-nodes-to-the-possible-nodes-set.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 24f0692bfd41fd207d99c993a5785c3426762046 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@xxxxxxxxx>
Date: Thu, 20 Oct 2022 16:54:55 -0700
Subject: ACPI: NUMA: Add CXL CFMWS 'nodes' to the possible nodes set
From: Dan Williams <dan.j.williams@xxxxxxxxx>
commit 24f0692bfd41fd207d99c993a5785c3426762046 upstream.
The ACPI CEDT.CFMWS indicates a range of possible address where new CXL
regions can appear. Each range is associated with a QTG id (QoS
Throttling Group id). For each range + QTG pair that is not covered by a proximity
domain in the SRAT, Linux creates a new NUMA node. However, the commit
that added the new ranges missed updating the node_possible mask which
causes memory_group_register() to fail. Add the new nodes to the
nodes_possible mask.
Cc: <stable@xxxxxxxxxxxxxxx>
Fixes: fd49f99c1809 ("ACPI: NUMA: Add a node and memblk for each CFMWS not in SRAT")
Cc: Alison Schofield <alison.schofield@xxxxxxxxx>
Cc: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Reported-by: Vishal Verma <vishal.l.verma@xxxxxxxxx>
Tested-by: Vishal Verma <vishal.l.verma@xxxxxxxxx>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Reviewed-by: Vishal Verma <vishal.l.verma@xxxxxxxxx>
Link: https://lore.kernel.org/r/166631003537.1167078.9373680312035292395.stgit@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/acpi/numa/srat.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/acpi/numa/srat.c
+++ b/drivers/acpi/numa/srat.c
@@ -327,6 +327,7 @@ static int __init acpi_parse_cfmws(union
pr_warn("ACPI NUMA: Failed to add memblk for CFMWS node %d [mem %#llx-%#llx]\n",
node, start, end);
}
+ node_set(node, numa_nodes_parsed);
/* Set the next available fake_pxm value */
(*fake_pxm)++;
Patches currently in stable-queue which might be from dan.j.williams@xxxxxxxxx are
queue-6.0/cxl-region-fix-distance-calculation-with-passthrough-ports.patch
queue-6.0/acpi-numa-add-cxl-cfmws-nodes-to-the-possible-nodes-set.patch
queue-6.0/cxl-region-fix-decoder-allocation-crash.patch
queue-6.0/cxl-pmem-fix-cxl_pmem_region-and-cxl_memdev-leak.patch
queue-6.0/cxl-region-fix-region-hpa-ordering-validation.patch
queue-6.0/cxl-region-fix-cxl_region-leak-cleanup-targets-at-region-delete.patch
