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-rw-r--r--tools/testing/selftests/powerpc/mm/prot_sao.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/testing/selftests/powerpc/mm/prot_sao.c b/tools/testing/selftests/powerpc/mm/prot_sao.c
index e0cf8ebbf8cd..30b71b1d78d5 100644
--- a/tools/testing/selftests/powerpc/mm/prot_sao.c
+++ b/tools/testing/selftests/powerpc/mm/prot_sao.c
@@ -7,6 +7,7 @@
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
+#include <unistd.h>
#include <asm/cputable.h>
@@ -18,9 +19,13 @@ int test_prot_sao(void)
{
char *p;
- /* SAO was introduced in 2.06 and removed in 3.1 */
+ /*
+ * SAO was introduced in 2.06 and removed in 3.1. It's disabled in
+ * guests/LPARs by default, so also skip if we are running in a guest.
+ */
SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06) ||
- have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+ have_hwcap2(PPC_FEATURE2_ARCH_3_1) ||
+ access("/proc/device-tree/rtas/ibm,hypertas-functions", F_OK) == 0);
/*
* Ensure we can ask for PROT_SAO.