[X86] Re: Revisiting PAE support

[Jeff Backus]

On Thu, Oct 26, 2017 at 5:09 PM, Alexander Ploumistos
 wrote:
> On Thu, Oct 26, 2017 at 11:28 PM, Jeff Backus  wrote:
> > Yes, we would need a +4GB RAM machine to test the PAE end of it, but
> > any machine should be able to leverage the NX part of it.
>
> The first NX-capable CPUs on the AMD side were Athlon 64 and P4 for
> Intel, right?
> Does that mean that we need to support 32-bit installations on 64-bit
> systems in general, or just the P4s?

I think we just target 32bit systems. If someone is using a 32bit
install on a 64bit system, it should still 'just work', but they won't
have access to the extra RAM or be able to leverage the NX bit.

jeff