IIRC aren't the BIOS ACM and SINIT ACM separate? (And the BIOS may or may not contain an SINIT ACM.)
Of course, there might also be a bug in HP's BIOS, in which whatever pointer/register needs to be initialised isn't. Wouldn't be the first. On 18 November 2016 at 12:27, Jan Schermer <j...@schermer.cz> wrote: > Hi, > I just got HP Z240 workstation (i7-6700 cpu) and it seems to lack SINIT > ACM embedded in the BIOS > I see this in one of the BIOS changelogs: > • Updates Intel TXT BIOS ACM to v1.3. > ^ shouldn't this mean it is there? > > tboot says: > TBOOT: checking if module is an SINIT for this platform... > TBOOT: ACM size is too small: acmod_size=30c, sizeof(acm_hdr)=4 > TBOOT: checking if module is an SINIT for this platform... > TBOOT: ACM size is too small: acmod_size=15, sizeof(acm_hdr)=4 > TBOOT: checking if module is an SINIT for this platform... > TBOOT: ACM size is too small: acmod_size=66c5200, > acm_hdr->size*4=c0c0c0c0 > TBOOT: no SINIT AC module found > TBOOT: TXT.SINIT.BASE: 0xb1ed0000 > TBOOT: TXT.SINIT.SIZE: 0x50000 (327680) > TBOOT: SINIT ACM not provided. > > > Is there really no embedded AC module here? I know I can sideload it, but > I was expecting it to be there (it is there on my other Workstation - > Lenovo M900, more-or-less the same specs and the same CPU). > It claims to support vPro and I thought one of the requirements was > embedded SINIT AC module, but maybe I am wrong here... > > > Thanks > Jan > > > ------------------------------------------------------------ > ------------------ > _______________________________________________ > tboot-devel mailing list > tboot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/tboot-devel >
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