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[Qemu-devel] [PATCH v1 2/3] target/i386/cpu.h: declare TCG_GUEST_DEFAULT


From: Alex Bennée
Subject: [Qemu-devel] [PATCH v1 2/3] target/i386/cpu.h: declare TCG_GUEST_DEFAULT_MO
Date: Tue, 28 Feb 2017 15:07:08 +0000

This suppresses the incorrect warning when forcing MTTCG for x86
guests on x86 hosts. A future patch will still warn when
TARGET_SUPPORT_MTTCG hasn't been defined for the guest (which is still
pending for x86).

Reported-by: Paolo Bonzini <address@hidden>
Signed-off-by: Alex Bennée <address@hidden>
---
 target/i386/cpu.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 573f2aa988..6be19d7e74 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -30,6 +30,9 @@
 #define TARGET_LONG_BITS 32
 #endif
 
+/* The x86 has a strong memory model with some store-after-load re-ordering */
+#define TCG_GUEST_DEFAULT_MO      (TCG_MO_ALL & ~TCG_MO_ST_LD)
+
 /* Maximum instruction code size */
 #define TARGET_MAX_INSN_SIZE 16
 
-- 
2.11.0




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