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[174.95.215.133]) by smtp.gmail.com with ESMTPSA id k64sm1496047qkc.97.2020.10.20.13.44.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Oct 2020 13:44:44 -0700 (PDT) Date: Tue, 20 Oct 2020 16:44:43 -0400 From: Peter Xu To: David Hildenbrand Subject: Re: [PATCH PROTOTYPE 3/6] vfio: Implement support for sparse RAM memory regions Message-ID: <20201020204443.GE200400@xz-x1> References: <20200924160423.106747-1-david@redhat.com> <20200924160423.106747-4-david@redhat.com> <20201020194434.GD200400@xz-x1> <14aaf9f1-9aa4-3a6b-ff25-8a4c7e29c2a6@redhat.com> MIME-Version: 1.0 In-Reply-To: <14aaf9f1-9aa4-3a6b-ff25-8a4c7e29c2a6@redhat.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=peterx@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/20 01:16:16 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_H4=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Pankaj Gupta , "Michael S. Tsirkin" , qemu-devel@nongnu.org, Luiz Capitulino , Auger Eric , Alex Williamson , Wei Yang , Igor Mammedov , Paolo Bonzini , "Dr . David Alan Gilbert" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Tue, Oct 20, 2020 at 10:01:12PM +0200, David Hildenbrand wrote: > Thanks ... but I have an AMD system. Will try to find out how to get > that running with AMD :) May still start with trying intel-iommu first. :) I think it should work for amd hosts too. Just another FYI - Wei is working on amd-iommu for vfio [1], but it's still during review. [1] https://lore.kernel.org/qemu-devel/20201002145907.1294353-1-wei.huang2@amd.com/ -- Peter Xu