[PATCH 08/36] xen/arm: add colored flag to page struct

[Marco Solieri <marco.solieri@xxxxxxxxxxxxxxx>]

From: Luca Miccio <lucmiccio@xxxxxxxxx>

A new allocator enforcing a cache-coloring configuration is going to be
introduced.  We thus need to distinguish the memory pages assigned to,
and managed by, such colored allocator from the ordinary buddy
allocator's ones.  Add a color flag to the page structure.

Signed-off-by: Luca Miccio <lucmiccio@xxxxxxxxx>
Signed-off-by: Marco Solieri <marco.solieri@xxxxxxxxxxxxxxx>
---
 xen/arch/arm/include/asm/mm.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xen/arch/arm/include/asm/mm.h b/xen/arch/arm/include/asm/mm.h
index 487be7cf59..9ac1767595 100644
--- a/xen/arch/arm/include/asm/mm.h
+++ b/xen/arch/arm/include/asm/mm.h
@@ -88,6 +88,10 @@ struct page_info
          */
         u32 tlbflush_timestamp;
     };
+
+    /* Is page managed by the cache-colored allocator? */
+    bool colored;
+
     u64 pad;
 };
 
-- 
2.30.2