[Xen-devel] [PATCH 11/16] arm: mark heap and frametable limits as read mostly

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

These are used in virt_to_page and page_to_virt so I imagine there's
some small benefit to this (but I've not measured)

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 xen/arch/arm/mm.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c
index aafc48c..368911b 100644
--- a/xen/arch/arm/mm.c
+++ b/xen/arch/arm/mm.c
@@ -47,11 +47,12 @@ uint64_t boot_httbr;
 static paddr_t phys_offset;
 
 /* Limits of the Xen heap */
-unsigned long xenheap_mfn_start, xenheap_mfn_end;
-unsigned long xenheap_virt_end;
+unsigned long xenheap_mfn_start __read_mostly;
+unsigned long xenheap_mfn_end __read_mostly;
+unsigned long xenheap_virt_end __read_mostly;
 
-unsigned long frametable_base_mfn;
-unsigned long frametable_virt_end;
+unsigned long frametable_base_mfn __read_mostly;
+unsigned long frametable_virt_end __read_mostly;
 
 unsigned long max_page;
 
-- 
1.7.9.1


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