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([2a01:e0a:280:24f0:9db0:474c:ff43:9f5c]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-450d7fa25besm91306775e9.14.2025.06.01.11.04.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 01 Jun 2025 11:04:16 -0700 (PDT) Message-ID: <8bfb07b2-2e9e-43d5-81a1-030554a64b5a@redhat.com> Date: Sun, 1 Jun 2025 20:04:15 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 0/4] VFIO and IOMMU prerequisite stuff for IOMMU nesting support To: Zhenzhong Duan , qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, eric.auger@redhat.com, mst@redhat.com, jasowang@redhat.com, peterx@redhat.com, ddutile@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, shameerali.kolothum.thodi@huawei.com, joao.m.martins@oracle.com, clement.mathieu--drif@eviden.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com References: <20250530093512.3959484-1-zhenzhong.duan@intel.com> Content-Language: en-US, fr From: =?UTF-8?Q?C=C3=A9dric_Le_Goater?= Autocrypt: addr=clg@redhat.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.071, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=-1, RCVD_IN_MSPIKE_WL=-0.01, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 5/30/25 11:35, Zhenzhong Duan wrote: > Hi, > > The first 6 patches of [1] are all VFIO or IOMMUFD related additions. > Split them out per Cédric and seek for quick acceptance. > > I didn't copy changelog from [1] as it's a mix of the whole nesting series. > > For who want a quick view of the whole nesting series [2]. > > Test done: > - VFIO devices hotplug/unplug > - build test on Windows > > [1] https://lists.gnu.org/archive/html/qemu-devel/2025-05/msg05002.html > [2] https://github.com/yiliu1765/qemu/tree/zhenzhong/iommufd_nesting.v1.wip > > Thanks > Zhenzhong > > Changelog: > v2: > - report kernel BUG as error instead of assert (Cédric) > - merge patch2 and patch3 (Cédric) > - handle vendor cap check directly from vtd_check_hiod, so patch6 removed (Cédric) > - s/data_ptr/data (Cédric) > - s/totally/total (Donald) Applied to vfio-next. Thanks, C. > > v1: > - changed to save raw data in VendorCaps, so we can keep all vendor structure > decoding inside the backend and VFIO wouldn't need to care about types nor > what's inside the data. > > > Zhenzhong Duan (4): > backends/iommufd: Add a helper to invalidate user-managed HWPT > vfio/iommufd: Add properties and handlers to > TYPE_HOST_IOMMU_DEVICE_IOMMUFD > vfio/iommufd: Implement [at|de]tach_hwpt handlers > vfio/iommufd: Save vendor specific device info > > include/system/host_iommu_device.h | 11 ++++++ > include/system/iommufd.h | 54 ++++++++++++++++++++++++++++ > backends/iommufd.c | 58 ++++++++++++++++++++++++++++++ > hw/vfio/iommufd.c | 36 ++++++++++++++++--- > backends/trace-events | 1 + > 5 files changed, 155 insertions(+), 5 deletions(-) >