RE: [Xen-users] VTD not working on Intel DX58SO w/ Xen 4.0.1

[Mike Viau <viaum@sheridanc.on.ca>]

On Mon, 29 Nov 2010 14:48:08 -0500 <tknchris@gmail.com> wrote:

ok here is the logs with 2.6.32.26 using pasi's config for 2.6.32.25
and iommu=verbose at boot. unfortunately this board doesnt have serial
and i dont have a spare serial card handy, so hopefully this will help
us figure it out :)

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For reference here is what my Intel® Desktop Board DP55WG (http://ark.intel.com/Product.aspx?id=40078) reported:


(XEN) VMX: Supported advanced features:
(XEN)  - APIC MMIO access virtualisation
(XEN)  - APIC TPR shadow
(XEN)  - Extended Page Tables (EPT)
(XEN)  - Virtual-Processor Identifiers (VPID)
(XEN)  - Virtual NMI
(XEN)  - MSR direct-access bitmap
(XEN) EPT supports 2MB super page.
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging detected.
(XEN) Intel VT-d Snoop Control supported.
(XEN) Intel VT-d DMA Passthrough not supported.
(XEN) Intel VT-d Queued Invalidation supported.
(XEN) Intel VT-d Interrupt Remapping not supported.
(XEN) I/O virtualisation enabled



Also stating no support for Intel® Virtualization Technology (Intel® VT) for Directed I/O (Intel® VT-d) on Intel's website


Intel® Virtualization Technology (Intel® VT) for Directed I/O (Intel® VT-d)Intel®
Virtualization Technology for Directed I/O (VT-d) extends Intel's
Virtualization Technology (VT) roadmap by providing hardware assists
for virtualization solution. VT-d continues from the existing support
for IA-32 (VT-x) and Itanium® processor (VT-i) virtualization adding
new support for I/O-device virtualization. Intel VT-d can help end
users improve security and reliability of the systems and also improve
performance of I/O devices in virtualized environment. These inherently
helps IT managers reduce the overall total cost of ownership by
reducing potential down time and increasing productive throughput by
better utilization of the data center resources.