Re: [Xen-devel] Re: [Xen-changelog] Fix NX/XD enable on secondary CPUs.

[Gerd Knorr <kraxel@xxxxxxx>]

On Wed, Jul 13, 2005 at 11:52:27AM +0100, Keir Fraser wrote:
> 
> Does EFER_NX need setting for 32-bit PAE?
> 
> We don't set it for *any* cpus in x86_32 builds, even cpu0...

The Dom0 linux kernel probably does for CPU #0 ...

> >  (XEN) (file=traps.c, line=872) Non-priv domain attempted 
> >RDMSR(c0000080,00000000,20100000).
> >  (XEN) (file=traps.c, line=864) Non-priv domain attempted 
> >WRMSR(c0000080,00000800,00000000).

... what the DomU kernel isn't allowed to do on CPU #1.

  Gerd

-- 
panic("it works"); /* avoid being flooded with debug messages */

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