Re: [tboot-devel] JTAG and TXT?

2012-08-31 Thread Jonathan McCune
Hi Joanna, On Fri, Aug 31, 2012 at 10:54 AM, Joanna Rutkowska wrote: > Thanks Jon. I have had a few moments in my life when I really wished I > had access to such a CPU debugger, but ultimately never bought any ;) I really only used it when I didn't know what I was doing, e.g., I had never manip

Re: [tboot-devel] JTAG and TXT?

2012-08-31 Thread Joanna Rutkowska
On 08/31/12 15:45, Jonathan McCune wrote: > Hi Joanna, > > On Fri, Aug 31, 2012 at 5:47 AM, Joanna Rutkowska > wrote: >> So, am I asking a wrong question? ;) > > I can try to give an answer to a related question... > >> On 08/09/12 20:19, Joanna Rutkowska wrote: >>> I'm curious whether activati

Re: [tboot-devel] JTAG and TXT?

2012-08-31 Thread Jonathan McCune
Hi Joanna, On Fri, Aug 31, 2012 at 5:47 AM, Joanna Rutkowska wrote: > So, am I asking a wrong question? ;) I can try to give an answer to a related question... > On 08/09/12 20:19, Joanna Rutkowska wrote: >> I'm curious whether activation of the JTAG interface affects PCR values, >> be that tho

Re: [tboot-devel] JTAG and TXT?

2012-08-31 Thread Joanna Rutkowska
So, am I asking a wrong question? ;) joanna. On 08/09/12 20:19, Joanna Rutkowska wrote: > Hello, > > I'm curious whether activation of the JTAG interface affects PCR values, > be that those measured as part of SRTM, or those as part of > SENTER/SINIT? Or perhaps SENTER/SINIT aborts if JTAG is en