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authorAlex Bennée <alex.bennee@linaro.org>2019-01-18 17:18:48 +0000
committerCornelia Huck <cohuck@redhat.com>2019-02-04 13:47:50 +0100
commit843caef2ef1fd524de66a035b88a9153350ad392 (patch)
treefaacf25c013a3aad96427b2fc589aa2105ff34c1 /target
parenta61faa3d02159d24d4fa984733dbc0c905508752 (diff)
target/s390x: define TCG_GUEST_DEFAULT_MO for MTTCG
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.bennee@linaro.org> Cc: David Hildenbrand <david@redhat.com> Message-Id: <20190118171848.27332-1-alex.bennee@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target')
-rw-r--r--target/s390x/cpu.h4
1 files changed, 4 insertions, 0 deletions
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