[PATCH] x86/mm/p2m: use NX bit for p2m entries

[PATCH] x86/mm/p2m: use NX bit for p2m entries

[Christoph Egger]

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In addition to c/s 25614:7d8a2e8412f2 also use the NX bit
for non-ram types.

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
CC: Tim Deegan <tim@xen.org>


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diff -r ae0e96e156f3 xen/arch/x86/mm/p2m-pt.c
--- a/xen/arch/x86/mm/p2m-pt.c	Thu Jul 19 12:12:12 2012 +0200
+++ b/xen/arch/x86/mm/p2m-pt.c	Fri Jul 20 15:39:54 2012 +0200
@@ -88,7 +88,7 @@ static unsigned long p2m_type_to_flags(p
     case p2m_ram_paged:
     case p2m_ram_paging_in:
     default:
-        return flags;
+        return flags | _PAGE_NX_BIT;
     case p2m_grant_map_ro:
         return flags | P2M_BASE_FLAGS | _PAGE_NX_BIT;
     case p2m_ram_ro:

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Re: [PATCH] x86/mm/p2m: use NX bit for p2m entries

[Tim Deegan]

At 16:23 +0200 on 20 Jul (1342801428), Christoph Egger wrote:
> 
> In addition to c/s 25614:7d8a2e8412f2 also use the NX bit
> for non-ram types.
> 
> Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>

Meh; I guess it will help remind us to think about NX in other cases.
Applied, thanks.

Tim.