[Xen-devel] Re: __supported_pte_mask breaks PROT_NONE pages

[Ingo Molnar <mingo@xxxxxxx>]

* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

> On an x86 system which doesn't support global mappings,  
> __supported_pte_mask has _PAGE_GLOBAL clear, to make sure it never  
> appears in the PTE.  pfn_pte() and so on will enforce it with:

btw., did you actually see a boot crash due to this, on a pre-PGE system?

        Ingo

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