Messages in this thread | | | Subject | Re: [CFT] ELF Relocatable x86 and x86_64 bzImages | From | Andi Kleen <> | Date | 13 Aug 2006 22:06:19 +0200 |
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ebiederm@xmission.com (Eric W. Biederman) writes: > > Do you know what code had problems having _PAGE_NX set. > What are we doing with early_ioremap the requires execute > permissions. It doesn't sound right that we would need > this.
The early EM64T CPUs didn't support NX and would GPF when they hit the bit. That is why you always need to mask with __supported_pte_mask when using _PAGE_NX.
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