To avoid testcase failures we need to enable the pgstes. This can be
done with /proc/sys/vm/allocate_pgste or with a linker option that
creates an S390_PGSTE program header.
Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
[Fixed as outlined by kernel test robot <rong.a.chen@xxxxxxxxx>]
---
tools/testing/selftests/kvm/Makefile | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index 05a94a13a0a31..0d7265da15830 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -47,7 +47,12 @@ CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \
no-pie-option := $(call try-run, echo 'int main() { return 0; }' | \
$(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -no-pie -x c - -o "$$TMP", -no-pie)
-LDFLAGS += -pthread $(no-pie-option)
+# On s390, build the testcases KVM-enabled
+pgste-option = $(call try-run, echo 'int main() { return 0; }' | \
+ $(CC) -Werror -Wl$(comma)--s390-pgste -x c - -o "$$TMP",-Wl$(comma)--s390-pgste)
+
+
+LDFLAGS += -pthread $(no-pie-option) $(pgste-option)
# After inclusion, $(OUTPUT) is defined and
# $(TEST_GEN_PROGS) starts with $(OUTPUT)/
--
2.21.0
