El 15/08/17 a les 17:04, Hendrik Boom ha escrit:
> On Tue, Aug 15, 2017 at 04:29:50PM +0200, Alessandro Selli wrote:
>> On 15/08/2017 at 05:13, Taiidan@??? wrote:
>>> FYI Many big companies get intel to include classified instruction
>>> sets to give them some kind of competitive edge.
>>>
>>> I can't find the link but it was in a bloomberg article about xeon CPU's.
>>
>> Maybe it's this piece:
>>
>> https://www.bloomberg.com/news/articles/2016-06-09/how-intel-makes-a-chip
>
> It lets me read the first paragraph. Then it spnds minutes changing the
> layout and adding new articles to the page, rearranging the ads, placing
> the "Inside Intel's Chip Factory" video in different places on the page,
> and moving it multiple times, and finally tells me the rest of the
> article is available to subscribers only.
>
> After that kind of onscreen runaround, I wouldn't subscribe even if I
> originally had wanteed to.
>
>> Customer B has no idea that feature is there.”
>
> What implications does this have for security? Allow me to shudder.
>
> -- hendrik
As Far As I Know, CPU makes what software asks to do.
If software doesn't call some CPU functions, those functions will not work.
It's like a 1990 software compiled for i386, running now on x86-64 CPU:
The software will not use MMX registers, RIP, SSE instructions, etc.
because them are unknown for the software and developer in 1990.