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KVM: selftests: enable pgste option for the linker on s390

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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>]
This commit is contained in:
Christian Borntraeger 2019-05-24 12:27:01 +02:00
parent 49fe9a5d16
commit 8343ba2d48
1 changed files with 6 additions and 1 deletions
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7
tools/testing/selftests/kvm/Makefile
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@ -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)/