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Fri, 25 Sep 2020 01:48:24 -0700 (PDT) Date: Fri, 25 Sep 2020 10:48:06 +0200 From: Jean-Philippe Brucker To: iommu@lists.linux-foundation.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org, linux-pci@vger.kernel.org Subject: Re: [PATCH v3 0/6] Add virtio-iommu built-in topology Message-ID: <20200925084806.GB490533@myrica> References: <20200821131540.2801801-1-jean-philippe@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200821131540.2801801-1-jean-philippe@linaro.org> Cc: lorenzo.pieralisi@arm.com, mst@redhat.com, joro@8bytes.org, eric.auger@redhat.com, sebastien.boeuf@intel.com, bhelgaas@google.com X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" On Fri, Aug 21, 2020 at 03:15:34PM +0200, Jean-Philippe Brucker wrote: > Add a topology description to the virtio-iommu driver and enable x86 > platforms. > > Since [v2] we have made some progress on adding ACPI support for > virtio-iommu, which is the preferred boot method on x86. It will be a > new vendor-agnostic table describing para-virtual topologies in a > minimal format. However some platforms don't use either ACPI or DT for > booting (for example microvm), and will need the alternative topology > description method proposed here. In addition, since the process to get > a new ACPI table will take a long time, this provides a boot method even > to ACPI-based platforms, if only temporarily for testing and > development. > > v3: > * Add patch 1 that moves virtio-iommu to a subfolder. > * Split the rest: > * Patch 2 adds topology-helper.c, which will be shared with the ACPI > support. > * Patch 4 adds definitions. > * Patch 5 adds parser in topology.c. > * Address other comments. > > Linux and QEMU patches available at: > https://jpbrucker.net/git/linux virtio-iommu/devel > https://jpbrucker.net/git/qemu virtio-iommu/devel I'm parking this work again, until we make progress on the ACPI table, or until a platform without ACPI and DT needs it. Until then, I've pushed v4 to my virtio-iommu/topo branch and will keep it rebased on master. Thanks, Jean _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization