Bit 20 in edx is set if NX is available for C7: eax in: 0x80000001, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00100000 ( from your posting "This kernel requires the following..." )
The official VIA Eden datasheet seems to be NDA. I have not found any official download link on the pages: http://www.via.com.tw/en/products/processors/c7/ The /c3/ pages contain the documentation for the C3 family. I do not think the NX feature can be switched on/off by regular registers. May be it helps to play around with the bios ? Load "default settings" => see how the NX flag acts. Load "optimized settings" => see how the NX flags acts. I suppose the bios developer had used one setting to test and work with the NX flag regular. Christian > If you read the other thread properly you'd see that the BIOS has an option > to enable or disable it... when enabled it shows up. PS: @Simon, sorry that I missed the other thread. Too much traffic and not enough time for me to read all. I suppose that's a fulltime job ;-) Claas Langbehn wrote: > Simon Arlott schrieb: >> On 19/05/07 23:36, Christian Volkmann wrote: >>> Christian Volkmann wrote: >>>> Claas asked for the NX flag for the Via C3 (?) processors >>>> in another thread. >> >> If you read the other thread properly you'd see that the BIOS has an >> option to enable or disable it... when enabled it shows up. > > Right, but my bios disables this after each boot-time :( > Therefore it would be great if the kernel would not care > about the BIOS and enable it anyway. > > This seems to be a severe bug in the BIOS, but VIA does not > deliver a new BIOS since months. :( > >> >> I can't reboot that box just to test cx8 detection (which is missing). >> > It works here. > > > > claas > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/