Hi, Currently I'm trying to work on TBOOT. However I get an error which is "TXT.ERRORCODE: 0xc00020a1". I checked the sinit_errors.txt and found this error was due to "device scope of VT-d DMAR ACPI table is invalid". I searched on line and someone said this was due to VT-d unenabled. However I have enabled VT-d in the BIOS.
Can anyone give me some help?
Here is the environment to run tboot:
Laptop: Thinkpad T400
BIOS: Version 7UET94WW (the latest version, released on 16 Dec 2012
by Lenovo); TXT, VT, VT-d are enabled.
TBOOT: Version 1.7.3 (Released on 2012-12-28);
ACM: GM45_GS45_PM45_SINIT_51.BIN
OS: Ubuntu 12.04 with 3.5.0-30-generic kernel
My grub.cfg for tboot is :
menuentry 'Ubuntu, with Linux 3.5.0-30-generic' --class ubuntu --class
gnu-linux --class gnu --class os {
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root
9047b871-f55c-44d1-952c-48bf0de35fcd
*multiboot /tboot.gz /tboot.gz logging=vga,memory,serial*
module /boot/vmlinuz-3.5.0-30-generic
*intel_iommu=on*root=UUID=9047b871-f55c-44d1-952c-48bf0de35fcd ro
quiet splash $vt_handoff
module /boot/initrd.img-3.5.0-30-generic
*module /boot/GM45_GS45_PM45_SINIT_51.BIN*
}
The tboot log file is also attached.
Thanks,
Hu Hong
txt-stat.output
Description: Binary data
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