MTTCG should be enabled by default whenever the memory model allows it. s390x was missing its definition of TCG_GUEST_DEFAULT_MO meaning the user had to manually specify --accel tcg,thread=multi.
Signed-off-by: Alex Bennée <alex.ben...@linaro.org> Cc: David Hildenbrand <da...@redhat.com> --- target/s390x/cpu.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index 8c2320e882..47d2c2e9cf 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -35,6 +35,10 @@ #define CPUArchState struct CPUS390XState #include "exec/cpu-defs.h" + +/* The z/Architecture has a strong memory model with some store-after-load re-ordering */ +#define TCG_GUEST_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD) + #define TARGET_PAGE_BITS 12 #define TARGET_PHYS_ADDR_SPACE_BITS 64 -- 2.17.1
