From patchwork Thu Sep 20 15:47:42 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefano Stabellini X-Patchwork-Id: 1486381 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id F13373FE65 for ; Thu, 20 Sep 2012 15:53:51 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TEj2i-0003Ku-Sw; Thu, 20 Sep 2012 15:51:56 +0000 Received: from smtp02.citrix.com ([66.165.176.63]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TEj2f-0003KE-B2 for linux-arm-kernel@lists.infradead.org; Thu, 20 Sep 2012 15:51:54 +0000 X-IronPort-AV: E=Sophos;i="4.80,454,1344211200"; d="scan'208";a="208767663" Received: from ftlpmailmx01.citrite.net ([10.13.107.65]) by FTLPIPO02.CITRIX.COM with ESMTP/TLS/RC4-MD5; 20 Sep 2012 15:48:23 +0000 Received: from ukmail1.uk.xensource.com (10.80.16.128) by smtprelay.citrix.com (10.13.107.65) with Microsoft SMTP Server id 8.3.279.1; Thu, 20 Sep 2012 11:48:21 -0400 Received: from kaball.uk.xensource.com ([10.80.2.59]) by ukmail1.uk.xensource.com with esmtp (Exim 4.69) (envelope-from ) id 1TEiz9-0002MB-Rq; Thu, 20 Sep 2012 16:48:15 +0100 From: Stefano Stabellini To: linux-kernel@vger.kernel.org Subject: [PATCH v2] arm: introduce a DTS for Xen unprivileged virtual machines Date: Thu, 20 Sep 2012 16:47:42 +0100 Message-ID: <1348156062-11476-1-git-send-email-stefano.stabellini@eu.citrix.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-Spam-Note: CRM114 invocation failed X-Spam-Score: -3.1 (---) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-3.1 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [66.165.176.63 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.5 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: xen-devel@lists.xensource.com, Ian.Campbell@citrix.com, pawel.moll@arm.com, konrad.wilk@oracle.com, Stefano Stabellini , Arnd Bergmann , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Given that the xenvm machine is based on vexpress but with an extremely limited selection of peripherals (the guest is supposed to use virtual devices instead), add "xen,xenvm" to the list of compatible machines in mach-vexpress. Changes in v2: - remove include skeleton; - use #address-cells = <2> and #size-cells = <2>; - remove the debug bootargs; - use memory@80000000 instead of memory; - remove the ranges and interrupt-map from the motherboard node; - set the machine compatible to "xen,xenvm-4.2", "xen,xenvm"; - rename the dts file to xenvm-4.2.dts; - add "xen,xenvm" to the list of compatible DT strings to mach-vexpress. Signed-off-by: Stefano Stabellini CC: Pawel Moll CC: Arnd Bergmann Acked-by: Pawel Moll --- arch/arm/boot/dts/xenvm-4.2.dts | 64 ++++++++++++++++++++++++++++++++++ arch/arm/mach-vexpress/Makefile.boot | 3 +- arch/arm/mach-vexpress/v2m.c | 1 + 3 files changed, 67 insertions(+), 1 deletions(-) create mode 100644 arch/arm/boot/dts/xenvm-4.2.dts diff --git a/arch/arm/boot/dts/xenvm-4.2.dts b/arch/arm/boot/dts/xenvm-4.2.dts new file mode 100644 index 0000000..03d7c84 --- /dev/null +++ b/arch/arm/boot/dts/xenvm-4.2.dts @@ -0,0 +1,64 @@ +/* + * Xen Virtual Machine for unprivileged guests + * + * Based on ARM Ltd. Versatile Express CoreTile Express (single CPU) + * Cortex-A15 MPCore (V2P-CA15) + * + */ + +/dts-v1/; + +/ { + model = "XENVM-4.2"; + compatible = "xen,xenvm-4.2", "xen,xenvm"; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + chosen { + bootargs = "console=hvc0 root=/dev/xvda"; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a15"; + reg = <0>; + }; + }; + + memory@80000000 { + device_type = "memory"; + reg = <0 0x80000000 0 0x08000000>; + }; + + gic: interrupt-controller@2c001000 { + compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0 0x2c001000 0 0x1000>, + <0 0x2c002000 0 0x100>; + }; + + timer { + compatible = "arm,armv7-timer"; + interrupts = <1 13 0xf08>, + <1 14 0xf08>, + <1 11 0xf08>, + <1 10 0xf08>; + }; + + hypervisor { + compatible = "xen,xen-4.2", "xen,xen"; + reg = <0 0xb0000000 0 0x20000>; + interrupts = <1 15 0xf08>; + }; + + motherboard { + arm,v2m-memory-map = "rs1"; + }; +}; diff --git a/arch/arm/mach-vexpress/Makefile.boot b/arch/arm/mach-vexpress/Makefile.boot index 318d308..38dbaac 100644 --- a/arch/arm/mach-vexpress/Makefile.boot +++ b/arch/arm/mach-vexpress/Makefile.boot @@ -7,4 +7,5 @@ initrd_phys-y := 0x60800000 dtb-$(CONFIG_ARCH_VEXPRESS_DT) += vexpress-v2p-ca5s.dtb \ vexpress-v2p-ca9.dtb \ vexpress-v2p-ca15-tc1.dtb \ - vexpress-v2p-ca15_a7.dtb + vexpress-v2p-ca15_a7.dtb \ + xenvm-4.2.dtb diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index 4e567f7..9545b70 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -659,6 +659,7 @@ static void __init v2m_dt_init(void) const static char *v2m_dt_match[] __initconst = { "arm,vexpress", + "xen,xenvm", NULL, };