Messages in this thread |  | | Date | Fri, 03 Nov 2000 20:28:59 -0500 | From | Brian Gerst <> | Subject | Re: [PATCH] x86 boot time check for cpu features |
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Alan Cox wrote: > > > Alan Cox wrote: > > > Q: are any of the things you test present in processors only after we > > > do magic 'cpuid' enable invocations ? > > > > Hmm, after a bit more investigation, it appears that the Cyrix MII > > processors support cmov instructions, even though we currently don't > > compile for that processor with -march=i686. Please ignore this patch > > until I can come up with something better. > > I believe the MII always has CPUID enabled. It was the older Cyrixes that did > not. DaveJ is the guru..
Well, according to comments in bugs.h, some broken BIOSes disable cpuid.
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