Yes, VT-d is enable in BIOS on both hosts.
I've enabled Syslog to a central syslog collector, and interestingly I've seen it occuring on my other host too. It also stopped occuring on the initial host once i brough it out of maintenance mode and vMotioned some VMs.
According to ouput from lspci -d, device 00:02.0 looks to be the integrated graphics card on the CPU.
00:00:02.0 Display controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
00: 86 80 02 01 07 00 90 00 09 00 00 03 00 00 00 00
10: 04 00 40 fa 00 00 00 00 0c 00 00 d0 00 00 00 00
20: 01 f0 00 00 00 00 00 00 00 00 00 00 86 80 08 20
30: 00 00 00 00 90 00 00 00 00 00 00 00 0b 01 00 00
40: 09 00 0c 01 96 a0 00 e2 90 00 00 04 00 00 00 00
50: 09 02 00 00 19 00 00 00 00 00 00 00 01 00 a0 bd
60: 00 00 02 01 00 00 00 00 00 00 00 00 00 00 00 00
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 05 d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 00 00 00 00 13 00 06 03 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 01 a4 22 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 80 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 00 00 06 00 18 60 8d bc
Given that, It's probably nothing to worry about, but would deffinitely be interested if someone has an explaination.