[Xen-changelog] [xen-unstable] arm: map fixmaps non-executable.

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Ian Campbell <ian.campbell@xxxxxxxxxx>
# Date 1340724238 -3600
# Node ID 21c75c5ac5f4aa39778843bae21334dde2a4d5db
# Parent  be9f7621d53145536ea91bbd0e8bd82f34f7086e
arm: map fixmaps non-executable.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Committed-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---


diff -r be9f7621d531 -r 21c75c5ac5f4 xen/arch/arm/mm.c
--- a/xen/arch/arm/mm.c Tue Jun 26 16:23:57 2012 +0100
+++ b/xen/arch/arm/mm.c Tue Jun 26 16:23:58 2012 +0100
@@ -106,6 +106,7 @@ void set_fixmap(unsigned map, unsigned l
     lpae_t pte = mfn_to_xen_entry(mfn);
     pte.pt.table = 1; /* 4k mappings always have this bit set */
     pte.pt.ai = attributes;
+    pte.pt.xn = 1;
     write_pte(xen_fixmap + third_table_offset(FIXMAP_ADDR(map)), pte);
     flush_xen_data_tlb_va(FIXMAP_ADDR(map));
 }

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