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AJvYcCVnttUZiBpqjF+jn4fBLuOjKoanmKN3mkp2fmzVdOBMvTy0Gy4pJPkQo4Q6kcaJmvUVKXQ=@vger.kernel.org X-Gm-Message-State: AOJu0Yxlh+oRvIiF2Ld0G0gn7ZJPbX0iIDccnqI+/JHBwizjTRtvwLQQ u7zuL4wsqBTwqxeWy/+c+ac3OdybDvFW/ZPumgU0//y6KHXRKDrGJA+CRL5abau5NoqiX/ywo0P CQUrtfwR5XG2j1A== X-Google-Smtp-Source: AGHT+IE5fec+WQbHBoCMa3++Nmm00mA9nDx512f1g565wlYHYNSf+gSbBwJcM9UuSPMmVVMpbBGlduomktU3pw== X-Received: from pji7.prod.google.com ([2002:a17:90b:3fc7:b0:2fa:a30a:3382]) (user=dmatlack job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:164a:b0:2ff:6608:78cd with SMTP id 98e67ed59e1d1-3110f30892fmr1630472a91.9.1748043068001; Fri, 23 May 2025 16:31:08 -0700 (PDT) Date: Fri, 23 May 2025 23:30:12 +0000 In-Reply-To: <20250523233018.1702151-1-dmatlack@google.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250523233018.1702151-1-dmatlack@google.com> X-Mailer: git-send-email 2.49.0.1151.ga128411c76-goog Message-ID: <20250523233018.1702151-28-dmatlack@google.com> Subject: [RFC PATCH 27/33] vfio: selftests: Add iommufd_compat_type1{,v2} modes From: David Matlack To: Alex Williamson Cc: Shuah Khan , Paolo Bonzini , David Matlack , Vinod Koul , Fenghua Yu , "Masami Hiramatsu (Google)" , Adhemerval Zanella , Jiri Olsa , Andrii Nakryiko , Wei Yang , Bjorn Helgaas , Takashi Iwai , Greg Kroah-Hartman , Pierre-Louis Bossart , Andy Shevchenko , FUJITA Tomonori , WangYuli , Sean Christopherson , Andrew Jones , Claudio Imbrenda , Eric Auger , Josh Hilke , linux-kselftest@vger.kernel.org, kvm@vger.kernel.org, Jason Gunthorpe , Kevin Tian , Vipin Sharma , Pasha Tatashin , Saeed Mahameed , Adithya Jayachandran , Parav Pandit , Leon Romanovsky , Vinicius Costa Gomes , Dave Jiang , Dan Williams Content-Type: text/plain; charset="UTF-8" Add new IOMMU modes for using iommufd in compatibility mode with VFIO_TYPE1_IOMMU and VFIO_TYPE1v2_IOMMU. In these modes, VFIO selftests will open /dev/iommu and treats it as a container FD (as if it had opened /dev/vfio/vfio) and the kernel translates the container ioctls to iommufd calls transparently. Signed-off-by: David Matlack --- tools/testing/selftests/vfio/lib/vfio_pci_device.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/testing/selftests/vfio/lib/vfio_pci_device.c b/tools/testing/selftests/vfio/lib/vfio_pci_device.c index b349d901cfdc..205bbfb3d54e 100644 --- a/tools/testing/selftests/vfio/lib/vfio_pci_device.c +++ b/tools/testing/selftests/vfio/lib/vfio_pci_device.c @@ -371,6 +371,16 @@ static const struct vfio_iommu_mode iommu_modes[] = { .container_path = "/dev/vfio/vfio", .group_iommu_type = VFIO_TYPE1v2_IOMMU, }, + { + .name = "iommufd_compat_type1", + .container_path = "/dev/iommu", + .group_iommu_type = VFIO_TYPE1_IOMMU, + }, + { + .name = "iommufd_compat_type1v2", + .container_path = "/dev/iommu", + .group_iommu_type = VFIO_TYPE1v2_IOMMU, + }, }; const char *default_iommu_mode = "vfio_type1_iommu"; -- 2.49.0.1151.ga128411c76-goog