Add selftest to check if the system recovers from slb multihit
errors.
Signed-off-by: Ganesh Goudar <ganes...@linux.ibm.com>
---
tools/testing/selftests/powerpc/Makefile | 3 ++-
tools/testing/selftests/powerpc/mces/Makefile | 6 ++++++
tools/testing/selftests/powerpc/mces/slb_multihit.sh | 9 +++++++++
3 files changed, 17 insertions(+), 1 deletion(-)
create mode 100644 tools/testing/selftests/powerpc/mces/Makefile
create mode 100755 tools/testing/selftests/powerpc/mces/slb_multihit.sh
diff --git a/tools/testing/selftests/powerpc/Makefile
b/tools/testing/selftests/powerpc/Makefile
index 0830e63818c1..3c900b30da79 100644
--- a/tools/testing/selftests/powerpc/Makefile
+++ b/tools/testing/selftests/powerpc/Makefile
@@ -31,7 +31,8 @@ SUB_DIRS = alignment \
vphn \
math \
ptrace \
- security
+ security \
+ mces
endif
diff --git a/tools/testing/selftests/powerpc/mces/Makefile
b/tools/testing/selftests/powerpc/mces/Makefile
new file mode 100644
index 000000000000..5a356295e952
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mces/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for machine check exceptions selftests
+
+TEST_PROGS := slb_multihit.sh
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/powerpc/mces/slb_multihit.sh
b/tools/testing/selftests/powerpc/mces/slb_multihit.sh
new file mode 100755
index 000000000000..35c17c619d0a
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mces/slb_multihit.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+if [ ! -e "/sys/kernel/debug/powerpc/mce_error_inject/inject_slb_multihit" ] ;
then
+ exit 0;
+fi
+
+echo 1 > /sys/kernel/debug/powerpc/mce_error_inject/inject_slb_multihit
+exit 0
--
2.26.2
