From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756988AbbIYOxu (ORCPT ); Fri, 25 Sep 2015 10:53:50 -0400 Received: from smtp.citrix.com ([66.165.176.89]:2048 "EHLO SMTP.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756468AbbIYOxs (ORCPT ); Fri, 25 Sep 2015 10:53:48 -0400 X-IronPort-AV: E=Sophos;i="5.17,587,1437436800"; d="scan'208";a="302441830" Message-ID: <56055FAE.70704@citrix.com> Date: Fri, 25 Sep 2015 15:52:30 +0100 From: Julien Grall User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0 MIME-Version: 1.0 To: CC: , , , Subject: Re: [PATCH v1 0/8] xen/arm: vgic: Support 32-bit access for 64-bit register References: <1443192667-16112-1-git-send-email-julien.grall@citrix.com> In-Reply-To: <1443192667-16112-1-git-send-email-julien.grall@citrix.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-DLP: MIA1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Please ignore this version, I've sent it to the wrong mailing list. Sorry for the noise. On 25/09/15 15:50, Julien Grall wrote: > Hi all, > > This series aims to fix the 32-bit access on 64-bit register. Some guest > OS such as FreeBSD and Linux (only in the ITS) use 32-bit access and will > crash at boot time. > > I took the opportunity to go further and optimize the way Xen is storing > registers such as GICD_IPRIORITYR, GICD_ITARGETR and GICD_IROUTER. > > Major changes in v2: > - Use the helpers in GICv2 > - Optimize the assembly input for vgic_regN_* helpers on arm32 > - Add support for sign-extension generically > - Store GICD_{IPRIORITYR, ITARGETSR, IROUTER} in a better way > > For all the changes see in each patch. > > A branch has been pushed based on the lastest staging: > > git://xenbits.xen.org/people/julieng/xen-unstable.git branch gicv3-32bit-v1 > > Sincerely yours, > > Julien Grall (8): > xen/arm: io: remove mmio_check_t typedef > xen/arm: io: Extend write/read handler to pass the register in > parameter > xen/arm: Support sign-extension for every read access > xen/arm: vgic: ctlr stores a 32-bit hardware register so use uint32_t > xen/arm: vgic: Optimize the way to store GICD_IPRIORITYR in the rank > xen/arm: vgic: Optimize the way to store the target vCPU in the rank > xen/arm: vgic: Introduce helpers to read/write/clear/set vGIC register > ... > xen/arm: vgic-v3: Support 32-bit access for 64-bit registers > > xen/arch/arm/io.c | 42 +++++- > xen/arch/arm/vgic-v2.c | 295 +++++++++++++++++++++--------------- > xen/arch/arm/vgic-v3.c | 352 +++++++++++++++++++++++++------------------ > xen/arch/arm/vgic.c | 72 ++++++++- > xen/arch/arm/vuart.c | 16 +- > xen/include/asm-arm/domain.h | 2 +- > xen/include/asm-arm/mmio.h | 5 +- > xen/include/asm-arm/vgic.h | 148 +++++++++++++++--- > 8 files changed, 617 insertions(+), 315 deletions(-) > -- Julien Grall