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...assign device: maybe the platform doesn't support VT-d, or VT-d isn't enabled properly? If I set up VM properly after few months, but I remember, I met same error only after package upgrade. Pastebin logs, for check my errors: xm info http://pastebin.com/qGdKdVft dmesg http://pastebin.com/uLBTH1se IOMMU in BIOS: enable Virtualization in BIOS: enable grub kernel command line: root=UUID=2ecaab92-170f-4b51-a342-79c03fca0f3f ro iommu=1 iommu_inclusive_mapping=1 xen-pciback.passthrough=1 elevator=noop iommu=pt amd_iommu=fullflush xen-pciback.hide=(05:00.0)(05:00.1)(02:00.0) xen-pciback.hide=(05:0...

...after few months, but I remember, I > met same > > error only after package upgrade. > > Pastebin logs, for check my errors: > > xm info > > http://pastebin.com/qGdKdVft > > dmesg > > http://pastebin.com/uLBTH1se > > > If you check "xm dmesg" I expect you will find that VT-d has > been > disabled due to a security errata. If you accept the risks > then the > error message will tell you how to reenable it. >...