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[qemu-s390x] [PULL 01/10] target/s390x: define TCG_GUEST_DEFAULT_MO for

From: Cornelia Huck
Subject: [qemu-s390x] [PULL 01/10] target/s390x: define TCG_GUEST_DEFAULT_MO for MTTCG
Date: Tue, 5 Feb 2019 17:41:00 +0100

From: Alex Bennée <address@hidden>

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 <address@hidden>
Cc: David Hildenbrand <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: David Hildenbrand <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
Signed-off-by: Cornelia Huck <address@hidden>
 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 TARGET_PAGE_BITS 12

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