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Hi, I want to run a HVM domU. I have a Dell Optiplex 755: model name : Intel(R) Core(TM)2 Duo CPU E4500 @ 2.20GHz I have enabled VT in BIOS settings under performance. However, after I boot into a linux kernel (not under Xen), grep vmx /proc/cpuinfo returns nothing. When I boot under Xen, I get (XEN) Intel VT-d has been enabled (XEN) [VT-D]iommu.c:1700: Queued Invalidation hardware not

Dear Users, in my case, i want to passthrough a pci-e graphiccard to a hvm guest. In the bios i have to select whether the onboard graphic is used as primary vga output or the pci-e one. If i define the onboard one then the pci-e card gets unavailable in xen, furthermore lspci did not show it anymore. if i set the pci-e card as primary, it comes up fine in xen, but if i hide that card which is

Xen 3.4 xen-unstable.hg from yesterday with debian etch on 64bit arch Intel/Lenovo Q35 Mainboard with VT-d enabled Bootoptions iommu=1 vtd=1 pci.backhide for a PCI-E nvidia graphiccard xm dmesg Error messages includes: [VT-D] iommu.c: 1694:d32767 iommu: mapping reserved region failed [VT-D] iommu.c: 1542:d0 intel_iommu_add_device: context mapping failed If i try to start my HVM by xm create

...f880800017ff8 [ 6.583593] ---[ end trace fb9a440c4c792849 ]--- Stefan -- stefan.bauer at cubewerk.de Cubewerk Tel +49 8621 996 02 37 IT-Beratung + Planung Tel +49 179 119 47 67 Verkauf von Hard und Software Fax +49 7211 513 38551 Herzog-Otto-Stra?e 32 http://www.cubewerk.de 83308 Trostberg