Hello,

I have trouble booting using tboot on Ubuntu 14.04. I have a HP DC 7900
with TPM and Intel TXT enabled in BIOS. My GRUB entry looks like this:

menuentry 'TCB Ubuntu GNU/Linux, with tboot 1.8.1 and Linux
4.4.0-31-generic' --class ubuntu --class gnu-
linux --class gnu --class os --class tboot {
savedefault
insmod part_msdos
insmod ext2
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1
--hint-efi=hd0,msdos1
--hint-bar
emetal=ahci0,msdos1 5855d913-3af1-45c6-b540-
9758d30acffe
else
search --no-floppy --fs-uuid --set=root 5855d913-3af1-45c6-b540-9758d30acffe
fi
echo 'Loading tboot 1.8.1 ...'
multiboot /boot/tboot.gz /boot/tboot.gz logging=serial,vga,memory
measure_nv=true
extpol=embedded
echo 'Loading Linux 4.4.0-31-generic ...'
module /boot/vmlinuz-4.4.0-31-generic /boot/vmlinuz-4.4.0-31-generic
root=UUID=5855d913-3af1-45c6
-b540-9758d30acffe ro intel_iommu=on
echo 'Loading initial ramdisk ...'
module /boot/initrd.img-4.4.0-31-generic /boot/initrd.img-4.4.0-31-generic
echo 'Loading sinit Q45_Q43_SINIT_51.BIN ...'
module /boot/Q45_Q43_SINIT_51.BIN /boot/Q45_Q43_SINIT_51.BIN
}

While booting first see the messages:
'Loading Linux 4.4.0-31-generic ...'
Loading initial ramdisk
Loading sinit Q45_Q43_SINIT_51.BIN

Afterwards a lot of text is displayed for a couple of seconds. It is too
much and too fast to read so I can't really say what it is. Then the text
disappears and nothing happens anymore. I have waited about 5 minutes
hoping it is going to boot, however nothing happened. Txt-stat outputs the
following.:

Intel(r) TXT Configuration Registers:
STS: 0x00000012
senter_done: FALSE
sexit_done: TRUE
mem_config_lock: FALSE
private_open: FALSE
locality_1_open: FALSE
locality_2_open: FALSE
ESTS: 0x00
txt_reset: FALSE
E2STS: 0x0000000000000014
secrets: FALSE
ERRORCODE: 0x00000000
DIDVID: 0x0000000780018086
vendor_id: 0x8086
device_id: 0x8001
revision_id: 0x7
FSBIF: 0x0000000080001000
QPIIF: 0x00000000044a1000
SINIT.BASE: 0xdf500000
SINIT.SIZE: 131072B (0x20000)
HEAP.BASE: 0xdf520000
HEAP.SIZE: 917504B (0xe0000)
DPR: 0x00000000df600031
lock: TRUE
top: 0xdf600000
size: 3MB (3145728B)
PUBLIC.KEY:
5b 1f 71 c5 a5 b5 09 ec e5 95 8e 3b 17 7c 76 f9
b7 17 ca b6 00 00 00 00 00 00 00 00 00 00 00 00

***********************************************************
TXT measured launch: FALSE
secrets flag set: FALSE
***********************************************************
unable to find TBOOT log

Is there any way I could log the messages displayed by tboot while booting,
or any other way to find out what is wrong. Any help appreciated.

Regards
Georgi
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