From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751602AbdBOJOh convert rfc822-to-8bit (ORCPT ); Wed, 15 Feb 2017 04:14:37 -0500 Received: from smtp.ctxuk.citrix.com ([185.25.65.24]:49752 "EHLO SMTP.EU.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750987AbdBOJOc (ORCPT ); Wed, 15 Feb 2017 04:14:32 -0500 X-IronPort-AV: E=Sophos;i="5.35,165,1484006400"; d="scan'208";a="40797259" From: Paul Durrant To: "'Stefano Stabellini'" , Boris Ostrovsky CC: "xen-devel@lists.xenproject.org" , "linux-kernel@vger.kernel.org" , Juergen Gross Subject: RE: [PATCH v3 2/3] xen/privcmd: Add IOCTL_PRIVCMD_DM_OP Thread-Topic: [PATCH v3 2/3] xen/privcmd: Add IOCTL_PRIVCMD_DM_OP Thread-Index: AQHShhsZ3/cU3+zvwkS5wM5k355CTKFosbKAgAAUgQCAAQUJoA== Date: Wed, 15 Feb 2017 09:14:30 +0000 Message-ID: <90badfe1bbe84e29a29cf1311b88173d@AMSPEX02CL03.citrite.net> References: <1487005404-3183-1-git-send-email-paul.durrant@citrix.com> <1487005404-3183-3-git-send-email-paul.durrant@citrix.com> <5cc0f23c-5f7a-3834-c4ab-c178819b29d1@oracle.com> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > -----Original Message----- > From: Stefano Stabellini [mailto:sstabellini@kernel.org] > Sent: 14 February 2017 18:39 > To: Boris Ostrovsky > Cc: Paul Durrant ; xen-devel@lists.xenproject.org; > linux-kernel@vger.kernel.org; Stefano Stabellini ; > Juergen Gross > Subject: Re: [PATCH v3 2/3] xen/privcmd: Add IOCTL_PRIVCMD_DM_OP > > On Tue, 14 Feb 2017, Boris Ostrovsky wrote: > > On 02/13/2017 12:03 PM, Paul Durrant wrote: > > > Recently a new dm_op[1] hypercall was added to Xen to provide a > mechanism > > > for restricting device emulators (such as QEMU) to a limited set of > > > hypervisor operations, and being able to audit those operations in the > > > kernel of the domain in which they run. > > > > > > This patch adds IOCTL_PRIVCMD_DM_OP as gateway for > __HYPERVISOR_dm_op. > > > > > > NOTE: There is no requirement for user-space code to bounce data > through > > > locked memory buffers (as with IOCTL_PRIVCMD_HYPERCALL) since > > > privcmd has enough information to lock the original buffers > > > directly. > > > > > > [1] http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=524a98c2 > > > > > > Signed-off-by: Paul Durrant > > > > > > Stefano, > > > > Are you OK with ARM changes? > > Yes: > > Acked-by: Stefano Stabellini > > Thanks for CC'ing me, I missed the patch. > Sorry. My fault for nor re-running get-maintaner.pl after fixing up the ARM build. Paul