I'd also like to know this - including all the ACMs in a distribution seems... 
hackish.

This is most likely vendor-specific.
Older machines that I tried didn't include it (old Thinkpads for example), the 
newest one that didn't include it that I've seen was of ~2014 vintage (pre-EFI 
methinks].
Servers should include it (always?), but if they don't then the vendor doesn't 
care, and then it's doubtul how well it will work anyway.

Jan

> On 20 Sep 2016, at 18:37, Daniel Mueller <danielmul...@vmware.com> wrote:
> 
> Hi,
> 
> Looking at the tboot source code it seems to support finding and installing a 
> user-provided AC module. Is this feature actually used with recent systems or 
> do all systems ship with an ACM installed?
> 
> I found the following line in the TXT development guide 
> <http://www.intel.com/content/www/us/en/software-developers/intel-txt-software-development-guide.html>:
> 
> Since the TXT architecture requires that BIOS provide at least one BIOS ACM, 
> NumAcms must always be greater than 0.
> So it appears an ACM must be installed. Are there any known systems violating 
> this constraint?
> 
> Thanks,
> Daniel
> 
> ------------------------------------------------------------------------------
> _______________________________________________
> tboot-devel mailing list
> tboot-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/tboot-devel

------------------------------------------------------------------------------
_______________________________________________
tboot-devel mailing list
tboot-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/tboot-devel

Reply via email to