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[79.179.71.128]) by smtp.gmail.com with ESMTPSA id c14sm2297007wrv.12.2020.09.25.03.22.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Sep 2020 03:22:23 -0700 (PDT) Date: Fri, 25 Sep 2020 06:22:20 -0400 From: "Michael S. Tsirkin" To: Joerg Roedel Subject: Re: [PATCH v3 0/6] Add virtio-iommu built-in topology Message-ID: <20200925062122-mutt-send-email-mst@kernel.org> References: <20200821131540.2801801-1-jean-philippe@linaro.org> <20200924045958-mutt-send-email-mst@kernel.org> <20200924092129.GH27174@8bytes.org> <20200924053159-mutt-send-email-mst@kernel.org> <20200924100255.GM27174@8bytes.org> <20200924083918-mutt-send-email-mst@kernel.org> <20200924125046.GR27174@8bytes.org> MIME-Version: 1.0 In-Reply-To: <20200924125046.GR27174@8bytes.org> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mst@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Cc: virtio-dev@lists.oasis-open.org, kevin.tian@intel.com, Jean-Philippe Brucker , linux-pci@vger.kernel.org, jasowang@redhat.com, virtualization@lists.linux-foundation.org, iommu@lists.linux-foundation.org, sebastien.boeuf@intel.com, bhelgaas@google.com X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Thu, Sep 24, 2020 at 02:50:46PM +0200, Joerg Roedel wrote: > On Thu, Sep 24, 2020 at 08:41:21AM -0400, Michael S. Tsirkin wrote: > > But this has nothing to do with Linux. There is also no guarantee that > > the two committees will decide to use exactly the same format. Once one > > of them sets the format in stone, we can add support for that format to > > linux. If another one is playing nice and uses the same format, we can > > use the same parsers. If it doesn't linux will have to follow suit. > > Or Linux decides to support only one of the formats, which would then be > ACPI. > > Regards, > > Joerg It's really up to hypervisors not guests, linux as a guest can for sure refuse to work somewhere, but that's normally not very attractive. -- MST _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu