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That's all we know. 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: Jean-Philippe Brucker , "Michael S. Tsirkin" , QEMU Developers , Peter Xu , Eric Auger , qemu-arm , Paolo Bonzini , bbhushan2@marvell.com, Eric Auger Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, 25 Jun 2020 at 08:06, Markus Armbruster wrote: > $ qemu-system-x86_64 -nodefaults -S -display none -device virtio-iommu-pci,len-reserved-regions=1,reserved-regions[0]=0xfee00000:0xfeefffff:99 > qemu-system-x86_64: -device virtio-iommu-pci,len-reserved-regions=1,reserved-regions[0]=0xfee00000:0xfeefffff:99: pc-i440fx-5.1 machine fails to create iommu-map device tree bindings > Check you machine implements a hotplug handler for the virtio-iommu-pci device > Check the guest is booted without FW or with -no-acpi > > By the way: s/Check you machine/Check your machine/. Patch sent: https://patchew.org/QEMU/20200625100811.12690-1-peter.maydell@linaro.org/ thanks -- PMM