Hal, If you work with Xen, please try to add "iommu=1 vtd=1" in Xen command line (i.e. the end of "module /boot/xen.gz ...") If you work with Linux, please try to add "iommu=on" in the command line (i.e. the end of "module /boot/vmlinuz-2.6.30 ..."
PS: do you know which platform HP dc7800 is? *Field or *Dale? Can you see VTd lsoc (Azalia) WA in BIOS or somewhere? Thanks. Shane Hal Finney wrote: > Thanks for the reply, Shane. VT-d is enabled in the BIOS; in fact, the > BIOS automatically enables VT-d when TXT is enabled. > > I don't know of anything I would do in any grub configuration file to > enable VT-d for tboot and SINIT. Do you have any suggestions? > > Hal > > On Wed, Jul 29, 2009 at 10:04 PM, Shane Wang<shane.w...@intel.com> wrote: >> Hi Hal >> >> The error code means VTd is disabled. >> Is your VT-d enabled in your new BIOS and grub.conf? >> >> Thanks. >> Shane >> >> Hal Finney wrote: >>> I haven't run tboot in a while, but I'm trying it on my HP dc7800 and >>> finding it hangs in GETSEC[SENTER]. This is even true with old >>> versions of tboot that used to work. My system has no USB ports >>> plugged in, and no hardware changes. >>> >>> The one change is I recently updated my BIOS. I suspect this has to be >>> the cause. One nice thing about the new BIOS is that the tboot hang >>> actually reboots the machine with the ERRORCODE register intact. Its >>> value is c00020a1. This is progress code 0ah, error code 1000, >>> meaning: "device scope of VT-d DMAR ACPI table is invalid". Not clear >>> what this means. >>> >>> My log is attached, including the hang and the relaunch of tboot. This >>> is version 20090330 of tboot. Thanks very much - >>> >>> Hal Finney >> ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ tboot-devel mailing list tboot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tboot-devel
