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Thu, 16 Mar 2023 13:22:59 +0000 Received: from DS0PR11MB7529.namprd11.prod.outlook.com ([fe80::6f7:944a:aaad:301f]) by DS0PR11MB7529.namprd11.prod.outlook.com ([fe80::6f7:944a:aaad:301f%8]) with mapi id 15.20.6178.031; Thu, 16 Mar 2023 13:22:59 +0000 From: "Liu, Yi L" To: Nicolin Chen CC: "Tian, Kevin" , Alex Williamson , "jgg@nvidia.com" , "joro@8bytes.org" , "robin.murphy@arm.com" , "cohuck@redhat.com" , "eric.auger@redhat.com" , "kvm@vger.kernel.org" , "mjrosato@linux.ibm.com" , "chao.p.peng@linux.intel.com" , "yi.y.sun@linux.intel.com" , "peterx@redhat.com" , "jasowang@redhat.com" , "shameerali.kolothum.thodi@huawei.com" , "lulu@redhat.com" , "suravee.suthikulpanit@amd.com" , "intel-gvt-dev@lists.freedesktop.org" , "intel-gfx@lists.freedesktop.org" , "linux-s390@vger.kernel.org" , "Hao, Xudong" , "Zhao, Yan Y" , "Xu, Terrence" Subject: RE: [PATCH v6 12/24] vfio/pci: Allow passing zero-length fd array in VFIO_DEVICE_PCI_HOT_RESET Thread-Topic: [PATCH v6 12/24] vfio/pci: Allow passing zero-length fd array in VFIO_DEVICE_PCI_HOT_RESET Thread-Index: AQHZV83ljxjAAYqHzEGGeM++m5XIpq787JlwgAAKmoCAAGuasA== Date: Thu, 16 Mar 2023 13:22:58 +0000 Message-ID: References: <20230308132903.465159-1-yi.l.liu@intel.com> <20230308132903.465159-13-yi.l.liu@intel.com> <20230315165311.01f32bfe.alex.williamson@redhat.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DS0PR11MB7529.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5a44b677-35c7-4cb7-5136-08db26218f90 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Mar 2023 13:22:58.6808 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: MadIiqGo+0T+N9s0KNXFp7m81EpE/xdJ8jj5k+ql2Ldiun9/tOF2Ou+r8d7gTz6ZWJS51k+BNgba6oNnKkWPJQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS7PR11MB6269 X-OriginatorOrg: intel.com Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org > From: Nicolin Chen > Sent: Thursday, March 16, 2023 2:49 PM >=20 > On Thu, Mar 16, 2023 at 06:28:28AM +0000, Liu, Yi L wrote: >=20 > > > Anyway let's not wait here. Send your v7 and we can have more > > > focused discussion in your split series about hot reset. > > > > Sure. Once Nicolin's patch is updated, I can send v7 with the hot > > reset series as well. >=20 > I've updated three commits and pushed here: > https://github.com/nicolinc/iommufd/commits/wip/iommufd_nesting- > 03152023 >=20 > Please pull the following commit to the emulated series: > "iommufd: Create access in vfio_iommufd_emulated_bind()" >=20 > https://github.com/nicolinc/iommufd/commit/6467e332584de62d1c4d5daa > b404a8c8d5a90a2d >=20 > Please pull the following commit to the cdev series or a place > that you feel it'd be better -- it's required by the change of > adding vfio_iommufd_emulated_detach_ioas(): > "iommufd/device: Add iommufd_access_detach() API" >=20 > https://github.com/nicolinc/iommufd/commit/86346b5d06100640037cbb4a > 14bd249476072dec Thanks, I've taken them. v7 was sent out. > The other one adding replace() will go with the replace series. >=20 > And regarding the new baseline for the replace series and the > nesting series, it'd be nicer to have another one git-merging > your cdev v7 branch on top of Jason's iommufd_hwpt branch. We > could wait for him updating to 6.3-rc2, if that's necessary. Yes. I cherry-pick his iommufd_hwpt to 6.3-rc2 and then try a merge and then cherry-pick the replace and nesting series from your above branch. Though the order between cdev and iommufd_hwpt not perfect, we may use it as a wip baseline when we try to address the comments w.r.t. nesting and replace series. https://github.com/yiliu1765/iommufd/tree/wip/iommufd_nesting-03162023 Regards, Yi Liu