[LinuxBIOS] #42: Disable SMM on K8 platforms
LinuxBIOS
svn at openbios.org
Fri Nov 10 19:55:24 CET 2006
#42: Disable SMM on K8 platforms
----------------------------------+-----------------------------------------
Reporter: stepan | Owner: stepan
Type: defect | Status: assigned
Priority: major | Milestone: Going mainstream
Component: code | Version: v2
Resolution: | Keywords: SMM, security
Due_close: MM/DD/YYYY | Include_gantt: 0
Dependencies: | Due_assign: MM/DD/YYYY
Patchstatus: there is no patch |
----------------------------------+-----------------------------------------
Comment (by segher):
Replying to [comment:4 stepan]:
> SMM is a CPU/Northbridge thing on AMD64 processors. No need to do
anything with the chipset.
Well you need to make sure that SMI (and SCI) are correctly handled,
so they cannot hang the system. It's not obvious to me that this is
automatically the case, but you know this stuff better I'm sure :-)
The other thing the chipset can do is disable certain regions of memory
while not in SMM, but that's not too interesting if you don't do SMM
at all :-)
Segher
--
Ticket URL: <http://tracker.linuxbios.org/trac/LinuxBIOS/ticket/42#comment:5>
LinuxBIOS <http://www.linuxbios.org/>
More information about the coreboot
mailing list