From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoffer Dall Subject: Re: [RFC/RFT PATCH v2 2/3] KVM: promote KVM_MEMSLOT_INCOHERENT to uapi Date: Thu, 14 May 2015 12:34:33 +0200 Message-ID: <20150514103433.GN32765@cbox> References: <1431516714-25816-1-git-send-email-drjones@redhat.com> <1431516714-25816-3-git-send-email-drjones@redhat.com> 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 C757651437 for ; Thu, 14 May 2015 06:25:16 -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 LK-i9kJtsB2p for ; Thu, 14 May 2015 06:25:15 -0400 (EDT) Received: from mail-la0-f53.google.com (mail-la0-f53.google.com [209.85.215.53]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 7F0D15142E for ; Thu, 14 May 2015 06:25:15 -0400 (EDT) Received: by layy10 with SMTP id y10so61192055lay.0 for ; Thu, 14 May 2015 03:34:22 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1431516714-25816-3-git-send-email-drjones@redhat.com> 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: Andrew Jones Cc: ard.biesheuvel@linaro.org, marc.zyngier@arm.com, catalin.marinas@arm.com, qemu-devel@nongnu.org, pbonzini@redhat.com, lersek@redhat.com, kvmarm@lists.cs.columbia.edu List-Id: kvmarm@lists.cs.columbia.edu On Wed, May 13, 2015 at 01:31:53PM +0200, Andrew Jones wrote: > Commit 1050dcda30529 introduced KVM_MEMSLOT_INCOHERENT to flag memory > regions that may have coherency issues due to mapping host system RAM > as non-cacheable. This was introduced as a KVM internal flag, but now > give KVM userspace access to it so that it may use it for hinting > likely problematic regions. Also rename to KVM_MEM_UNCACHED. > > Signed-off-by: Andrew Jones Reviewed-by: Christoffer Dall From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51559) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YsqTC-0004GD-Jp for qemu-devel@nongnu.org; Thu, 14 May 2015 06:34:27 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YsqT9-0003FY-9A for qemu-devel@nongnu.org; Thu, 14 May 2015 06:34:26 -0400 Received: from mail-la0-f44.google.com ([209.85.215.44]:36040) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YsqT9-0003En-2u for qemu-devel@nongnu.org; Thu, 14 May 2015 06:34:23 -0400 Received: by lagv1 with SMTP id v1so61134333lag.3 for ; Thu, 14 May 2015 03:34:22 -0700 (PDT) Date: Thu, 14 May 2015 12:34:33 +0200 From: Christoffer Dall Message-ID: <20150514103433.GN32765@cbox> References: <1431516714-25816-1-git-send-email-drjones@redhat.com> <1431516714-25816-3-git-send-email-drjones@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1431516714-25816-3-git-send-email-drjones@redhat.com> Subject: Re: [Qemu-devel] [RFC/RFT PATCH v2 2/3] KVM: promote KVM_MEMSLOT_INCOHERENT to uapi List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Andrew Jones Cc: peter.maydell@linaro.org, ard.biesheuvel@linaro.org, marc.zyngier@arm.com, catalin.marinas@arm.com, qemu-devel@nongnu.org, agraf@suse.de, pbonzini@redhat.com, j.fanguede@virtualopensystems.com, lersek@redhat.com, kvmarm@lists.cs.columbia.edu, m.smarduch@samsung.com On Wed, May 13, 2015 at 01:31:53PM +0200, Andrew Jones wrote: > Commit 1050dcda30529 introduced KVM_MEMSLOT_INCOHERENT to flag memory > regions that may have coherency issues due to mapping host system RAM > as non-cacheable. This was introduced as a KVM internal flag, but now > give KVM userspace access to it so that it may use it for hinting > likely problematic regions. Also rename to KVM_MEM_UNCACHED. > > Signed-off-by: Andrew Jones Reviewed-by: Christoffer Dall