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([2a01:e0a:59e:9d80:527b:9dff:feef:3874]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7a19905a914sm341180085a.82.2024.07.22.02.31.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 22 Jul 2024 02:31:15 -0700 (PDT) Message-ID: <536dcece-a249-4fe6-977d-d970795dfbe2@redhat.com> Date: Mon, 22 Jul 2024 11:31:11 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] Don't initialize HOST_IOMMU_DEVICE with mdev Content-Language: en-US To: Zhenzhong Duan , qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, joao.m.martins@oracle.com, chao.p.peng@intel.com References: <20240722070713.1342711-1-zhenzhong.duan@intel.com> From: Eric Auger In-Reply-To: <20240722070713.1342711-1-zhenzhong.duan@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=170.10.129.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.141, 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_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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: , Reply-To: eric.auger@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Hi Zhenzhong, On 7/22/24 09:07, Zhenzhong Duan wrote: > This fixes a potential issue with mdev that fails to initialize HOST_IOMMU_DEVICE. > Reason is mdev isn't physical device and doesn't support IOMMU_GET_HW_INFO. > > I thought ap/ccw are all mdev type and need a fix. > > This series depends on a patch from Joao which fixes the same for vfio-pci. > See https://lists.gnu.org/archive/html/qemu-devel/2024-07/msg04612.html > > Not tested due to no ap/ccw environment. But build test pass. > > Thanks > Zhenzhong > > Zhenzhong Duan (2): > vfio/ap: Don't initialize HOST_IOMMU_DEVICE with mdev > vfio/ccw: Don't initialize HOST_IOMMU_DEVICE with mdev For the series Reviewed-by: Eric Auger Eric > > hw/vfio/ap.c | 3 +++ > hw/vfio/ccw.c | 3 +++ > 2 files changed, 6 insertions(+) >