Messages in this thread | | | From | Yuhong Bao <> | Subject | RE: [PATCH 10/10] x86-32: panic on !CX8 && XMM | Date | Wed, 17 Feb 2010 15:00:25 -0800 |
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> NAK in the extreme. > > This is not how we deal with these kinds of stuff. If this really > matters, we explicitly clear the CPU feature in the feature detect code. Also, don't forget the NT4 CX8 bug with non-Intel/AMD/Cyrix vendors: http://www.geoffchappell.com/studies/windows/km/cpu/cx8.htm If a processor support SSE (or PAE or MMX for that matter), you can pretty much assume CX8 exists even if the feature bit is cleared because of this bug.
Yuhong Bao
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