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bh=o3PjKOZDRoMgjQSPM6TWJyjQWUH2KzOpx3n/I6iRMIc=; b=fHodinwwOjdttYecjUSA4E06pT+otpE53tRVfZRJIFTrv4p64Q8iBqH2E07fotBHr4/7SS AgFo0/95ZwLx6Ya2DuhZTGTfSAT+EDMebqfBbir8X9ueaTmdQOdRbqVBlpV9BQYxYbqCB6 GRGjHR6KFEpahQNhZ8O9F6tbyVCrR/g= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-296-nLQFPgHgPg2cW4QWCIi6Xg-1; Thu, 12 Nov 2020 05:11:29 -0500 X-MC-Unique: nLQFPgHgPg2cW4QWCIi6Xg-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DE6071891E96; Thu, 12 Nov 2020 10:11:27 +0000 (UTC) Received: from [10.36.115.61] (ovpn-115-61.ams2.redhat.com [10.36.115.61]) by smtp.corp.redhat.com (Postfix) with ESMTP id 17A9C60C13; Thu, 12 Nov 2020 10:11:04 +0000 (UTC) Subject: Re: [PATCH PROTOTYPE 3/6] vfio: Implement support for sparse RAM memory regions To: Peter Xu References: <20200924160423.106747-1-david@redhat.com> <20200924160423.106747-4-david@redhat.com> <20201020194434.GD200400@xz-x1> <14aaf9f1-9aa4-3a6b-ff25-8a4c7e29c2a6@redhat.com> <20201020204443.GE200400@xz-x1> From: David Hildenbrand Organization: Red Hat GmbH Message-ID: <9d3b2512-08cd-c566-9783-5e4e7e49770d@redhat.com> Date: Thu, 12 Nov 2020 11:11:04 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20201020204443.GE200400@xz-x1> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=63.128.21.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/12 00:52:29 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, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=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 20.10.20 22:44, Peter Xu wrote: > 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 :) I just did some more testing with the oldish GPU I have for that purpose. Seems to work, at least I get video output that keeps on working - did not try advanced things yet. I use -device vfio-pci,host=05:00.0,x-vga=on -device vfio-pci,host=05:00.1 when adding "-device intel-iommu", I got "qemu-system-x86_64: -device vfio-pci,host=05:00.1: vfio 0000:05:00.1: group 23 used in multiple address spaces" ... so I poked around the internet a bit and got it running with -device intel-iommu,caching-mode=on \ -device pcie-pci-bridge,addr=1e.0,id=pci.1 \ -device vfio-pci,host=05:00.0,xvga=on,bus=pci.1,addr=1.0,multifunction=on \ -device vfio-pci,host=05:00.1,bus=pci.1,addr=1.1 \ Things still seem to be working, so I assume it works (I guess ?!). -- Thanks, David / dhildenb