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SubjectRE: [Question] Why should we check irq_fpu_usable before accessing using ASENI instructions.
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> Date: Fri, 18 Jul 2014 13:57:15 +0530
> Subject: [Question] Why should we check irq_fpu_usable before accessing using ASENI instructions.
> From: guru2018@gmail.com
> To: linux-x86_64@vger.kernel.org
>
> Hello,
> I am new to assembly language programming.
> In Kernel we check irq_fpu_usable before using any of AESNI related
> instruction.
> 1) why should we check the FPU is available for using AESNI instructions ?
> 2) Will AESNI intructions make use of FPU ?
>
> I tried searching the answer in internet, no where i found the answer.
> Could please come one answer in this list.
>
> Guru
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resending due to kernel(s) html bounces..



anyways hopefully somebody can see this post and answer your questions!


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