Messages in this thread | | | Date | Tue, 09 May 2006 18:48:55 +0530 | From | Madhukar Mythri <> | Subject | Re: How to read BIOS information |
| |
Thanks alot for all...
Regards, Madhukar Mythri.
Richard Mittendorfer wrote:
>Also sprach Stefan Smietanowski <stesmi@stesmi.com> (Tue, 09 May 2006 >14:29:01 +0200): > > >>Alan Cox wrote: >> >> >>>On Maw, 2006-05-09 at 10:53 +0530, Madhukar Mythri wrote: >>> >>> >>> >>>> yeah, your are correct. but, the thing is my superiors want, even >>>> >>>> >>>if >kernel not reconize/use HT, we have to capture it from BIOS... >>> >>> >>>>Thats why i asked as, how to read BIOS information? >>>> >>>> >>>You ask the BIOS vendor for the exact board in question. >>> >>>If you want to ask the processor itself then you can use the model >>>specific registers. These are accessible via /dev/cpu/<cpuid>/msr so >>>you can perform the Intel recommended sequence for checking if the >>>processor has HT enabled. >>> >>>It might be simpler to look in /proc/cpuinfo if you just need the >>>basic information >>> >>> >>He's actually asking if the BIOS has turned on HT, not if some other >>means has... >> >>BUT, the only thing I can think of is turning OFF HT in the BIOS, >>reading the CMOS, storing it somewhere, turning ON HT, storing >>that somewhere and comparing them. Then he'll know that in his >>specific BIOS revision on his specific mainboard that bit is >>stored in one specific place and he can go from there. >> >>Messy, definately not recommended, stupid but hey, if the bosses >>ask for it and you gotta give it .. >> >>Just make triple sure you tell them that if you upgrade the BIOS >>the test might fail or if you change mainboard, etc. >> >> > >IIRC the chipset should know about this? >Something like hex /sys/devices/pci0000:0/0000:00:00.0/config and >comparing registers with the chipset's datasheet? > > > >>// Stefan >> >> > >sl ritch >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ > > >
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |