On Sun, Dec 14, 2014 at 09:48:26AM -0500, Stefan Berger wrote: > On 12/12/2014 02:46 PM, Jarkko Sakkinen wrote: > >Detect TPM 2.0 by sending idempotent TPM 2.x command. Ordinals for > >TPM 2.0 are higher than TPM 1.x commands so this should be fail-safe. > >Using STS3 is unreliable because some chips just report 0xff and not > >what the spec says. > > TPM TIS 1.2 can report either 0xff or 0x00 for sts3 since that part of > register was not defined for this version but only for a later version. So, > unless the TIS 1.3 for TPM 2.0 is broken, it should report a bit _pattern_ > (not plain 0x00 or 0xff) that you could apply the suggested mask to and > check then.
I propose this: lets keep the bit ugly but approach for now and when there are TPM2 FIFOs available in the market move to your workaround. I think that would be the most reasonable middle road here. > Stefan /Jarkko ------------------------------------------------------------------------------ Dive into the World of Parallel Programming! The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net _______________________________________________ TrouSerS-tech mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/trousers-tech
