[KVM] Failed to start the KVM guest with "No IOMMU found. Unable to assign device "hostdev0" " error message.

Solution Unverified - Updated -

Issue

  • Failed to start the KVM guest vm with the following messages.
Error: Domain rhel6-vm could not be started
Error: internal error process exited while connecting to monitor: char device redirected to / dev/pts/2
No IOMMU found. Unable to assign device "hostdev0"
qemu-kvm:-device pci-assign, host = 04:10.0, id = hostdev0, configfd = 27, bus = pci.0, addr = 0x6: Device 'pci-assign' could not be initialized

Environment

  • Red Hat Enterprise Linux 6.3
  • Processor: AMD Opteron(tm) Processor 6164 HE

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In
Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.