[fedora-virt] Re: [PATCH] xen: do not set NX bit when making initial pagetables readonly

Jeremy Fitzhardinge jeremy at goop.org
Fri Jan 30 18:56:02 UTC 2009

Ian Campbell wrote:
> __supported_pte_mask has not been correctly configured at this point
> and Xen prevents us from using the NX bit if the hardware does not
> support it. Some BIOSes seem to offer the option to disable NX.
Could we sniff EFER and update __supported_pte_mask accordingly?


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