farid.hajji at ob.kamp.net
Wed May 21 21:08:37 CEST 2003
> I tried that, and FWICT, Pistachio needs the VME processor capapbility
> (virtual mode extensions, see
> http://x86.ddj.com/articles/vme1/vme_overview.htm), which bochs
> doesn't provide.
> here is the relevant code (pistachio/kernel/src/glue/v4-ia32/init.cc):
> * checks the IA32 features (CPUID) to make sure the processor
> * has all necessary features */
> static void SECTION(".init.cpu") check_cpu_features()
> u32_t req_features = IA32_FEAT_FPU | IA32_FEAT_VME | IA32_FEAT_PSE;
> if ((req_features & avail_features) != req_features)
> printf("CPU does not support all features (%x) -- halting\n", req_features);
IIRC, someone already suggested a tempfix for bochs regarding VME.
I don't remember the details without looking back in the archives,
but was it not simply having bochs falsely _pretend_ that it
supported VME? This would work as long as VME isn't _used_
in Pistachio... Of course, adding true VME support to bochs
would be better. Any volunteers?
> I wonder why Pistachio needs VME, however. Maybe someone can give a
I'm as clueless as you here... ;)
Farid Hajji -- Unix Systems and Network Management.
Quoth the Raven, "Nevermore." --Edgar Allan Poe.
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