X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Farch%2Fs390%2Fkernel%2Fcache.c;h=8ba32436effe4b9da0a271ae1ec0ad2a2bd689e7;hb=fdb8b20906f3546ba6c2f9f0686d8a5189516ba3;hp=bff5e3b6d8223b8f9a9c84d8f99235d3d4e648bc;hpb=cc84a1f21026270463b580f2564f9d71912b20db;p=kvmfornfv.git

diff --git a/kernel/arch/s390/kernel/cache.c b/kernel/arch/s390/kernel/cache.c
index bff5e3b6d..8ba32436e 100644
--- a/kernel/arch/s390/kernel/cache.c
+++ b/kernel/arch/s390/kernel/cache.c
@@ -138,6 +138,8 @@ int init_cache_level(unsigned int cpu)
 	union cache_topology ct;
 	enum cache_type ctype;
 
+	if (!test_facility(34))
+		return -EOPNOTSUPP;
 	if (!this_cpu_ci)
 		return -EINVAL;
 	ct.raw = ecag(EXTRACT_TOPOLOGY, 0, 0);