> We had discussion about the event log before. > I think standard structure is desirable for this TXT event log.
Thanks for the context, Seiji. I agree, something in the PCClient standard structure would be good - it could be consumed by trousers without modifications. This could be exposed automatically if we had a kernel module for it. Does integrating that into intel_iommu.ko make sense? Kent > On Sat, Apr 26, 2008 at 4:40 AM, Cihula, Joseph <joseph.cih...@intel.com> > wrote: >> On Friday, April 25, 2008 7:47 AM, Jun Koi wrote: >>> On 4/17/08, Seiji Munetoh <seiji.mune...@gmail.com> wrote: >>>> Hi Folks, >>>> >>>> Is there any way to validate the PCR[17] and PCR18] values? >>>> >>>> In case of Static-RTM, we can validate the PCR values by using >>>> the BIOS eventlog stored at ACPI table. >>>> But for Dynamic-RTM we don't have such eventlog. >>> >>> Do you know if there is any good reason why tboot doesn't log events >>> into eventlog? >> >> Did you mean why tboot doesn't copy the extend information into the BIOS >> event log or why TXT itself doesn't put them there? >> >> For the former, it is a combination of lack of time, issues with the >> eventlog, and motivation. Regarding the eventlog, the current TCG >> specification does not provide for BIOS to indicate where the log data >> ends. There is a soon-to-be-released update for the spec that will >> specify that the end space be filled with ff's, but that will require >> updated BIOSes. Regarding motivation, it wasn't clear how useful or >> important it would be. >> >> The values for PCR 17 and 18 are available in the SinitMleData struct in >> the TXT heap. So MLEs can access it and expose it to whatever SW needs >> it. >> >> For TXT not doing it, the reasons are very similar. In addition, we >> didn't want to tie the launch process to BIOS and its configuration. >> >> Joe > > -- > Seiji > > P.S. OpenPTS is generating the eventlog from txt-stat message as a > quick-and-dirty way. > > > On Thu, Sep 27, 2012 at 3:44 AM, Kent Yoder <shpedoi...@gmail.com> wrote: >> Hi, >> >> Is there a standard way of grabbing the event log after a TXT >> launch? I see it looks like it lives in the os_mle_data_t struct on >> the txt heap, but there doesn't seem to be a way to print it from >> txt-stat. Is the code missing or can I dump it some other way? >> >> Thanks, >> Kent >> >> -- >> IBM LTC Security >> >> ------------------------------------------------------------------------------ >> How fast is your code? >> 3 out of 4 devs don\\\'t know how their code performs in production. >> Find out how slow your code is with AppDynamics Lite. >> http://ad.doubleclick.net/clk;262219672;13503038;z? >> http://info.appdynamics.com/FreeJavaPerformanceDownload.html >> _______________________________________________ >> tboot-devel mailing list >> tboot-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/tboot-devel -- IBM LTC Security ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://ad.doubleclick.net/clk;258768047;13503038;j? http://info.appdynamics.com/FreeJavaPerformanceDownload.html _______________________________________________ tboot-devel mailing list tboot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tboot-devel
