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Re: [Xen-devel] x86-64 machine_to_phys vs NX bit





On 25/8/06 3:46 pm, "Nakajima, Jun" <jun.nakajima@xxxxxxxxx> wrote:

> I agree, and I'm wondering why we don't have the same problem on i386?
> To me it basically does the same thing.

A long is only 32 bits there, so when we pass the MFN portion the NX bit is
conveniently truncated away!

 -- Keir



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