[kvm-unit-tests 2/2] s390x: skey: Fence TCG protection checks

[Janosch Frank <frankja@linux.ibm.com>]

TCG does not implement the skey memory protection, skip those tests
under TCG instead of filtering them in the CI logs.

This way the test will PASS when run by humans and there's no
confusion why it fails anymore.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
---
 s390x/skey.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/s390x/skey.c b/s390x/skey.c
index bb769730..1fc95857 100644
--- a/s390x/skey.c
+++ b/s390x/skey.c
@@ -14,6 +14,7 @@
 #include <vmalloc.h>
 #include <css.h>
 #include <mmu.h>
+#include <hardware.h>
 #include <asm/page.h>
 #include <asm/facility.h>
 #include <asm/mem.h>
@@ -736,6 +737,13 @@ int main(void)
 	test_set();
 	test_set_mb();
 	test_chg();
+
+	if  (detect_host() == HOST_IS_TCG) {
+		report_skip("No actual access protection in TCG for skeys.");
+		report_prefix_pop();
+		return report_summary();
+	}
+
 	test_test_protection();
 	test_store_cpu_address();
 	test_diag_308();
-- 
2.53.0