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[GIT,PULL,7/7] KVM: selftests: enable pgste option for the linker on s390

Message ID 20190701125848.276133-8-borntraeger@de.ibm.com (mailing list archive)
State New, archived
Headers show
Series [GIT,PULL,1/7] KVM: selftests: Guard struct kvm_vcpu_events with __KVM_HAVE_VCPU_EVENTS | expand

Commit Message

Christian Borntraeger July 1, 2019, 12:58 p.m. UTC 
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@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
[Fixed as outlined by  kernel test robot <rong.a.chen@intel.com>]
---
 tools/testing/selftests/kvm/Makefile | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

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)/