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From: "Alex Bennée" <alex.bennee@linaro.org>
To: peter.maydell@linaro.org, rth@twiddle.net, pbonzini@redhat.com
Cc: qemu-devel@nongnu.org, mttcg@listserver.greensocs.com,
	fred.konrad@greensocs.com, a.rigo@virtualopensystems.com,
	cota@braap.org, bobby.prani@gmail.com, nikunj@linux.vnet.ibm.com,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Eduardo Habkost" <ehabkost@redhat.com>
Subject: [Qemu-devel] [PATCH v2 02/11] target/i386/cpu.h: declare TCG_GUEST_DEFAULT_MO
Date: Thu,  2 Mar 2017 19:53:28 +0000	[thread overview]
Message-ID: <20170302195337.31558-3-alex.bennee@linaro.org> (raw)
In-Reply-To: <20170302195337.31558-1-alex.bennee@linaro.org>

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 <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
---
 target/i386/cpu.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 12a39d590f..ecdd3bbc2a 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

  parent reply	other threads:[~2017-03-02 19:53 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-02 19:53 [Qemu-devel] [PATCH v2 00/11] MTTCG fixups for 2.9 Alex Bennée
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 01/11] vl/cpus: be smarter with icount and MTTCG Alex Bennée
2017-03-02 19:53 ` Alex Bennée [this message]
2017-03-03 19:28   ` [Qemu-devel] [PATCH v2 02/11] target/i386/cpu.h: declare TCG_GUEST_DEFAULT_MO Eduardo Habkost
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 03/11] cpus.c: add additional error_report when !TARGET_SUPPORT_MTTCG Alex Bennée
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 04/11] translate: downgrade IRQ BQL asserts to tcg_debug_assert Alex Bennée
2017-03-03 10:08   ` Peter Maydell
2017-03-03 11:05     ` Alex Bennée
2017-03-03 11:19       ` Peter Maydell
2017-03-03 19:35         ` Richard Henderson
2017-03-03 19:47           ` Eric Blake
2017-03-03 19:48             ` Eric Blake
2017-03-03 11:49     ` Paolo Bonzini
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 05/11] translate-all: exit cpu_restore_state early if translating Alex Bennée
2017-03-02 21:46   ` Richard Henderson
2017-03-03 10:03     ` Alex Bennée
2017-03-03 19:50       ` Richard Henderson
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 06/11] sparc/sparc64: grab BQL before calling cpu_check_irqs Alex Bennée
2017-03-03 11:47   ` Paolo Bonzini
2017-03-06 10:28     ` Alex Bennée
2017-03-06 13:22       ` Paolo Bonzini
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 07/11] s390x/misc_helper.c: wrap IO instructions in BQL Alex Bennée
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 08/11] target/xtensa: hold BQL for interrupt processing Alex Bennée
2017-03-07  0:15   ` Max Filippov
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 09/11] target/mips/op_helper: hold BQL before calling cpu_mips_get_count Alex Bennée
2017-03-03 11:18   ` Yongbok Kim
2017-03-03 12:54     ` Alex Bennée
2017-03-03 13:00       ` Yongbok Kim
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 10/11] target/arm/helper: make it clear the EC field is also in hex Alex Bennée
2017-03-03 17:07   ` Frederic Konrad
2017-03-03 18:10   ` Peter Maydell
2017-03-02 19:53 ` [Qemu-devel] [PATCH v2 11/11] hw/intc/arm_gic: modernise the DPRINTF Alex Bennée
2017-03-03 17:05   ` Frederic Konrad
2017-03-03 17:09     ` Peter Maydell
2017-03-03 18:09   ` Peter Maydell
2017-03-03 17:38 ` [Qemu-devel] [PATCH v2 00/11] MTTCG fixups for 2.9 Frederic Konrad
2017-03-06  9:43   ` Alex Bennée
2017-03-06 10:45     ` Frederic Konrad

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