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[2001:4830:134:3::11]) by mx.google.com with ESMTPS id g9si25831otd.217.2016.11.09.07.15.30 for (version=TLS1 cipher=AES128-SHA bits=128/128); Wed, 09 Nov 2016 07:15:31 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Authentication-Results: mx.google.com; dkim=fail header.i=@linaro.org; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom=qemu-devel-bounces+patch=linaro.org@nongnu.org; dmarc=fail (p=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1]:40507 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c4Ub4-0006Cd-8D for patch@linaro.org; Wed, 09 Nov 2016 10:15:30 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43278) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c4USO-0007nT-TR for qemu-devel@nongnu.org; Wed, 09 Nov 2016 10:06:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c4USJ-0004Zt-Cm for qemu-devel@nongnu.org; Wed, 09 Nov 2016 10:06:32 -0500 Received: from mail-wm0-x231.google.com ([2a00:1450:400c:c09::231]:35307) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1c4USJ-0004ZK-65 for qemu-devel@nongnu.org; Wed, 09 Nov 2016 10:06:27 -0500 Received: by mail-wm0-x231.google.com with SMTP id a197so312752882wmd.0 for ; Wed, 09 Nov 2016 07:06:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Pi5jlzEw3PMjX1dH0WVVo0rWCvkbh9DGwb8n2XUCWgo=; b=YkbalCtUP1PfWgrcRLsBPPm/s3y7uuk4wE2tHtdEXKzPXz84SWzeuh38uz2kfe4SHk QWX3o8lSNAKoFHg0TonatnSp0zn1A3ZpxR6t81Wkof9Am+BaWhD7aDuMmY99KGhdc4ry wToa7lw7HwCMFZ3WRN9jqdAY7RUx+8e8+O0bM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Pi5jlzEw3PMjX1dH0WVVo0rWCvkbh9DGwb8n2XUCWgo=; b=ArZGX9k5J8hBg1EGbXxlS8TVawGLaYOn+72lCe1wwDw02BAot9KcaJzO9hAfXldXSv l/x9HynWpeO0qO0ZFBprp1WDXDnt5Vwn3p6Toh5XCWYdWx77wjpq/4PZEQvV9kOBzSrc x97S0rLWcXAilC8KnZYzE16pDzwRwkPsWXvddbEiBngaQPzj3DLISUQt1pPje3B3fmI3 9cfCcInPYvcoXSvP4HzoFWaLJ4vsrksp9geJtDz+61VGRBYPhqe9wN2O5H7GEiUpdAa/ bGue9X/i/5xzjQfeWzn0pP93jkmut3RdytlVmuMP9+GHBGadSJ6UiIZ/WI2LTSRWGyu2 Q5xA== X-Gm-Message-State: ABUngvfqzxrjEdLOOMUl6+wU9CR8oRxmiKcyhDUk0idnbLIPE8MLm+uReUCPKQ1bM6LmVCds X-Received: by 10.28.87.84 with SMTP id l81mr23377154wmb.48.1478703986061; Wed, 09 Nov 2016 07:06:26 -0800 (PST) Received: from zen.linaro.local ([81.128.185.34]) by smtp.gmail.com with ESMTPSA id l67sm16816993wmf.0.2016.11.09.07.06.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 09 Nov 2016 07:06:25 -0800 (PST) Received: from zen.linaroharston (localhost [127.0.0.1]) by zen.linaro.local (Postfix) with ESMTP id 3FDF13E0060; Wed, 9 Nov 2016 14:57:58 +0000 (GMT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: pbonzini@redhat.com Date: Wed, 9 Nov 2016 14:57:48 +0000 Message-Id: <20161109145748.27282-20-alex.bennee@linaro.org> X-Mailer: git-send-email 2.10.1 In-Reply-To: <20161109145748.27282-1-alex.bennee@linaro.org> References: <20161109145748.27282-1-alex.bennee@linaro.org> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2a00:1450:400c:c09::231 Subject: [Qemu-devel] [PATCH v6 19/19] tcg: enable MTTCG by default for ARM on x86 hosts X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mttcg@listserver.greensocs.com, peter.maydell@linaro.org, claudio.fontana@huawei.com, nikunj@linux.vnet.ibm.com, jan.kiszka@siemens.com, mark.burton@greensocs.com, a.rigo@virtualopensystems.com, qemu-devel@nongnu.org, cota@braap.org, serge.fdrv@gmail.com, bobby.prani@gmail.com, rth@twiddle.net, =?UTF-8?q?Alex=20Benn=C3=A9e?= , fred.konrad@greensocs.com Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" This enables the multi-threaded system emulation by default for ARMv7 and ARMv8 guests using the x86_64 TCG backend. This means: - The x86_64 TCG backend supports cmpxchg based atomic ops - The x86_64 TCG backend emits barriers for barrier ops And on the guest side: - The ARM translate.c/translate-64.c have been converted to - use MTTCG safe atomic primitives - emit the appropriate barrier ops - The ARM machine has been updated to - hold the BQL when modifying shared cross-vCPU state - defer cpu_reset to async safe work Signed-off-by: Alex Bennée --- configure | 12 ++++++++++++ default-configs/arm-softmmu.mak | 2 ++ 2 files changed, 14 insertions(+) -- 2.10.1 diff --git a/configure b/configure index fd6f898..685eb03 100755 --- a/configure +++ b/configure @@ -516,6 +516,7 @@ else fi ARCH= +host_mttcg_support= # Normalise host CPU name and set ARCH. # Note that this case should only have supported host CPUs, not guests. case "$cpu" in @@ -527,6 +528,7 @@ case "$cpu" in ;; x86_64|amd64) cpu="x86_64" + host_mttcg_support=yes ;; armv*b|armv*l|arm) cpu="arm" @@ -5703,6 +5705,10 @@ if test "$pthread_setname_np" = "yes" ; then echo "CONFIG_PTHREAD_SETNAME_NP=y" >> $config_host_mak fi +if test "$host_mttcg_support" = "yes" ; then + echo "CONFIG_MTTCG_HOST=y" >> $config_host_mak +fi + if test "$tcg_interpreter" = "yes"; then QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/tci $QEMU_INCLUDES" elif test "$ARCH" = "sparc64" ; then @@ -5815,6 +5821,7 @@ target_dir="$target" config_target_mak=$target_dir/config-target.mak target_name=$(echo $target | cut -d '-' -f 1) target_bigendian="no" +target_mttcg_support="no" case "$target_name" in armeb|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or32|ppc|ppcemb|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb) @@ -5872,11 +5879,13 @@ case "$target_name" in TARGET_ARCH=arm bflt="yes" gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml" + target_mttcg_support="yes" ;; aarch64) TARGET_BASE_ARCH=arm bflt="yes" gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml" + target_mttcg_support="yes" ;; cris) ;; @@ -6027,6 +6036,9 @@ if test "$target_bigendian" = "yes" ; then fi if test "$target_softmmu" = "yes" ; then echo "CONFIG_SOFTMMU=y" >> $config_target_mak + if test "$target_mttcg_support" = "yes" ; then + echo "CONFIG_MTTCG_TARGET=y" >> $config_target_mak + fi fi if test "$target_user_only" = "yes" ; then echo "CONFIG_USER_ONLY=y" >> $config_target_mak diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak index 6de3e16..007f751 100644 --- a/default-configs/arm-softmmu.mak +++ b/default-configs/arm-softmmu.mak @@ -115,3 +115,5 @@ CONFIG_ACPI=y CONFIG_SMBIOS=y CONFIG_ASPEED_SOC=y CONFIG_GPIO_KEY=y + +CONFIG_MTTCG_TARGET=y