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[PATCH 25/37] xen/arm: implement bad_srat for Arm NUMA initialization
- To: <wei.chen@xxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>, <sstabellini@xxxxxxxxxx>, <julien@xxxxxxx>
- From: Wei Chen <wei.chen@xxxxxxx>
- Date: Thu, 23 Sep 2021 20:02:24 +0800
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- Cc: <Bertrand.Marquis@xxxxxxx>
- Delivery-date: Thu, 23 Sep 2021 12:17:21 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Nodisclaimer: true
NUMA initialization will parse information from firmware provided
static resource affinity table (ACPI SRAT or DTB). bad_srat if a
function that will be used when initialization code encounters
some unexcepted errors.
In this patch, we introduce Arm version bad_srat for NUMA common
initialization code to invoke it.
Signed-off-by: Wei Chen <wei.chen@xxxxxxx>
---
xen/arch/arm/numa.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/xen/arch/arm/numa.c b/xen/arch/arm/numa.c
index 3755b01ef4..5209d3de4d 100644
--- a/xen/arch/arm/numa.c
+++ b/xen/arch/arm/numa.c
@@ -18,6 +18,7 @@
*
*/
#include <xen/init.h>
+#include <xen/nodemask.h>
#include <xen/numa.h>
static uint8_t __read_mostly
@@ -25,6 +26,12 @@ node_distance_map[MAX_NUMNODES][MAX_NUMNODES] = {
{ 0 }
};
+__init void bad_srat(void)
+{
+ printk(KERN_ERR "NUMA: Firmware SRAT table not used.\n");
+ fw_numa = -1;
+}
+
void __init numa_set_distance(nodeid_t from, nodeid_t to, uint32_t distance)
{
if ( from >= MAX_NUMNODES || to >= MAX_NUMNODES )
--
2.25.1
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