topic Dear Muthumanickam V. in Intel® Software Guard Extensions (Intel® SGX)

SGX support removed from Intel's ARK website?

paradium — Mon, 31 Aug 2015 05:42:18 GMT

Hi Intel

Until recently (1-2 weeks ago), Intel's ARK website listed SGX as being supported on the new Skylake 6600K and 6700K processors. However, this information now seems to have been removed? The page I'm talking about is (for the 6700K):

http://ark.intel.com/products/88195/Intel-Core-i7-6700K-Processor-8M-Cache-up-to-4_20-GHz

So does this mean SGX is no longer supported on these processors?

Thanks!

The 6600K supports SGX and

Muthumanic_V_Intel — Wed, 30 Mar 2016 10:08:36 GMT

The 6600K supports SGX and Intel-Core-i7-6700K-Processor-8M-Cache-up-to-4_20-GHz processor is also support SGX.

Dear Muthumanickam V.

paradium — Thu, 31 Mar 2016 17:37:10 GMT

Dear Muthumanickam V.

Thanks but it is not completely correct.

Since I wrote my post end-of-August, where I observed Intel had suddenly removed the SGX mention for 6600K and 6700K on the Ark website, it has come to light that the first round of 6600K and 6700K processors in fact did not support SGX, contrary to what had been advertised. Intel then issued a product notification saying that after the end of October 2015, new ones would be available that does support SGX. So in other words, 6600K and 6700K sold at launch and until end of October almost certainly doesn't support SGX, but those later might. Intel has since updated the Ark site once again, so it now indicates that SGX is supported, but with no mention of the early batches that didn't

You can read Intel's own Product Change Notification here:

https://qdms.intel.com/dm/i.aspx/5A160770-FC47-47A0-BF8A-062540456F0A/PCN114074-00.pdf

indeed such information has

Aulia_R_ — Mon, 04 Apr 2016 01:29:44 GMT

indeed such information has been removed.

Hi Paradium,

Muthumanic_V_Intel — Tue, 12 Apr 2016 04:55:15 GMT

Hi Paradium,

There was a configuration change for those processors which was released later to support SGX and the same processors models released during launch time do not suppot SGX.

following I have provided a link to the QDMS database:

https://qdms.intel.com/

You can search the PCN (Product Change Notice) database for this type information (design changes to a CPU). In the search criteria, use “Key Characteristics” and select “Product Design” as the field. You can also pull it up with a search by “Product Category”, but then you have to dig through “Desktop Processors”, “Server”, “Mobile”… It’s easy to miss things this way.

Thanks.