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Re: [Xen-devel] floating-point arithmetic

On Sat, 2014-10-18 at 09:39 +0800, Anh Dinh wrote:
> I compiled Xen with the flag:
> -mfpmath=sse -msse2
> so that I can use double variables in implementing a hypercall inside
> Xen hypervisor. 

Using floating point registers (so FPU, SSE, MMX, etc) is not allowed
inside the hypervisor. Hence you cannot use the C float or double types.

> Would appreciate any suggestion. 

You will have to find a way to achieve your goal using integer maths.


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