topic Re: Intel Xeon Gold missing VT-d support (iommu/ACS)? in Mobile and Desktop Processors

Intel Xeon Gold missing VT-d support (iommu/ACS)?

SPapa — Sat, 21 Oct 2017 19:43:41 GMT

Hi all,

The new Intel Xeon Gold CPUs (and the platinum) in their specification sheet, don't report support for VT-d, like the older Xeon families.

Do they really miss VT-d capability? I find it hard to believe that the newer and better CPUs miss such an important feature.

I would also like to ask if the Gold CPUs (6126,6132 ) support ACS, in order to be able to passthrough to VMs, networks adapters like intel XL710 (KVM env).

Thanx,

Spiros

https://ark.intel.com/products/123541/Intel-Xeon-Gold-6132-Processor-19_25M-Cache-2_60-GHz Intel® Xeon® Gold 6132 Processor (19.25M Cache, 2.60 GHz) Product Specifications

Re: Intel Xeon Gold missing VT-d support (iommu/ACS)?

idata — Mon, 23 Oct 2017 19:14:42 GMT

Hello papage,

Thank you for joining the Processors Community.

Please let me double check this matter.

Regards,

Amy C.

Re: Intel Xeon Gold missing VT-d support (iommu/ACS)?

idata — Wed, 15 Nov 2017 19:39:16 GMT

/thread/118865 papage thank you for your patience.

The information available from our end regarding this matter can be found on the following link: https://www.intel.com/content/www/us/en/processors/xeon/scalable/xeon-scalable-datasheet-vol-1.html Intel® Xeon® Processor Scalable Family Datasheet, Vol. 1. Page 10 refers to Intel® VT-d, also see note on page 7.

I am double checking your other inquiry.

Regards,

Amy C.

Re: Intel Xeon Gold missing VT-d support (iommu/ACS)?

idata — Mon, 20 Nov 2017 20:43:05 GMT

/thread/118865 papage,

I am still checking your other inquiry.

Regards,

Amy C.

Re: Intel Xeon Gold missing VT-d support (iommu/ACS)?

JHill16 — Mon, 04 Dec 2017 15:11:06 GMT

I'd also like to know if the Skylake-SP CPUs support ACS.

Re: Intel Xeon Gold missing VT-d support (iommu/ACS)?

idata — Wed, 06 Dec 2017 16:36:04 GMT

/thread/118865 papage, thank you for your patience.

Please check the links below, VT-d support for the Intel® Xeon® Gold 6138 and 6126 Processors info was included in ark.intel.com:

https://ark.intel.com/products/120476/Intel-Xeon-Gold-6138-Processor-27_5M-Cache-2_00-GHz

https://ark.intel.com/products/120483/Intel-Xeon-Gold-6126-Processor-19_25M-Cache-2_60-GHz

Regarding your second inquiry, for this you will need to verify that with the server board manufacturer in order to know if it supports the Intel® Ethernet Controller 710. Also you will need to check with the VM's software provider, and the operating system developer.

Regards,

Amy C.