Re: [PATCH 4/6] x86: fix some bugs about EFI runtime code mapping
From: Huang, Ying
Date: Fri Jan 25 2008 - 04:30:34 EST
On Fri, 2008-01-25 at 10:19 +0100, Ingo Molnar wrote:
> * Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
>
> >> +#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
> >> +static void __init runtime_code_page_mkexec(void)
> >> +{
> >> + efi_memory_desc_t *md;
> >> + unsigned long end;
> >> + void *p;
> >> +
> >> + if (!(__supported_pte_mask & _PAGE_NX))
> >> + return;
> >>
> >
> > On 32-bit non-PAE, _PAGE_NX == 0, so this if() statement should be
> > sufficient to disable the whole function at compile time without
> > needing the outer #if defined wrapper.
>
> good point. The patch fixes bugs and the consolidation it does is very
> nice so i've applied it already, but we could indeed further consolidate
> it and make it a nice #ifdef-less function. Could one of you send an
> add-on patch for this?
I will do it. But I have some other thing to do now, so I will send it
on next Monday.
Best Regards,
Huang Ying
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