diff options
Diffstat (limited to 'tools/testing/selftests/kvm/include/s390x/processor.h')
| -rw-r--r-- | tools/testing/selftests/kvm/include/s390x/processor.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/s390x/processor.h b/tools/testing/selftests/kvm/include/s390x/processor.h index e0e96a5f608c..255c9b990f4c 100644 --- a/tools/testing/selftests/kvm/include/s390x/processor.h +++ b/tools/testing/selftests/kvm/include/s390x/processor.h @@ -5,6 +5,8 @@ #ifndef SELFTEST_KVM_PROCESSOR_H #define SELFTEST_KVM_PROCESSOR_H +#include <linux/compiler.h> + /* Bits in the region/segment table entry */ #define REGION_ENTRY_ORIGIN ~0xfffUL /* region/segment table origin */ #define REGION_ENTRY_PROTECT 0x200 /* region protection bit */ @@ -19,4 +21,10 @@ #define PAGE_PROTECT 0x200 /* HW read-only bit */ #define PAGE_NOEXEC 0x100 /* HW no-execute bit */ +/* Is there a portable way to do this? */ +static inline void cpu_relax(void) +{ + barrier(); +} + #endif |