[intel-platform-discuss] Intel Platform optimised software crypto algorithms
Darren J Moffat
Darren.Moffat at Sun.COM
Thu Mar 15 10:00:19 PDT 2007
Sherry Moore wrote:
>> On Thu, Mar 15, 2007 at 01:48:53PM +0000, Darren J Moffat wrote:
>>> All the algorithms listed above are build for userland and kernel
>>> from the same algorithm source code but with slightly different
>>> "plumbing".
>> What are the restrictions on using (say) SSE instructions in the
>> kernel?
>
> There aren't any kernel specific restrictions. Just the general: the
> FPU has to be enabled, the processor has to support SSE.
So is this code we have in our bignum implementation not required ?
http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/common/bignum/i386/bignum_i386_asm.s#110
--
Darren J Moffat
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