From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Deacon Subject: Re: [PATCH v3 08/11] KVM: arm: implement dirty bit mechanism for debug registers Date: Wed, 8 Jul 2015 18:08:55 +0100 Message-ID: <20150708170855.GB6348@arm.com> References: <1434969694-7432-1-git-send-email-zhichao.huang@linaro.org> <1434969694-7432-9-git-send-email-zhichao.huang@linaro.org> <20150630092020.GP11332@cbox> <20150703115611.GB14220@lvm> <5A7DE9A0-E7A6-40B0-80F9-896F7DED0E47@linaro.org> <20150707102405.GE23879@arm.com> <123AABA4-2C79-462D-91FC-56FB52DB972C@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 289F058163 for ; Wed, 8 Jul 2015 12:57:29 -0400 (EDT) Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kNdl8LCarUQ8 for ; Wed, 8 Jul 2015 12:57:27 -0400 (EDT) Received: from foss.arm.com (foss.arm.com [217.140.101.70]) by mm01.cs.columbia.edu (Postfix) with ESMTP id F24AF5815C for ; Wed, 8 Jul 2015 12:57:26 -0400 (EDT) Content-Disposition: inline In-Reply-To: <123AABA4-2C79-462D-91FC-56FB52DB972C@linaro.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu To: Zhichao Huang Cc: "kvm@vger.kernel.org" , Marc Zyngier , "huangzhichao@huawei.com" , "linux-arm-kernel@lists.infradead.org" , "kvmarm@lists.cs.columbia.edu" List-Id: kvmarm@lists.cs.columbia.edu On Wed, Jul 08, 2015 at 11:50:22AM +0100, Zhichao Huang wrote: > Are you happy with this?: You miss the reserved breakpoint, I think. I also still don't understand why this is preferable to trapping. Will From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Wed, 8 Jul 2015 18:08:55 +0100 Subject: [PATCH v3 08/11] KVM: arm: implement dirty bit mechanism for debug registers In-Reply-To: <123AABA4-2C79-462D-91FC-56FB52DB972C@linaro.org> References: <1434969694-7432-1-git-send-email-zhichao.huang@linaro.org> <1434969694-7432-9-git-send-email-zhichao.huang@linaro.org> <20150630092020.GP11332@cbox> <20150703115611.GB14220@lvm> <5A7DE9A0-E7A6-40B0-80F9-896F7DED0E47@linaro.org> <20150707102405.GE23879@arm.com> <123AABA4-2C79-462D-91FC-56FB52DB972C@linaro.org> Message-ID: <20150708170855.GB6348@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Jul 08, 2015 at 11:50:22AM +0100, Zhichao Huang wrote: > Are you happy with this?: You miss the reserved breakpoint, I think. I also still don't understand why this is preferable to trapping. Will