From: Luca Miccio <206497@studenti.unimore.it>
Date: Wed, 21 Aug 2019 14:18:45 +0000 (+0200)
Subject: xen/arm: add colored flag to page struct
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=e122ee6ad39edede10087567ee4eed5b9d2f9152;p=people%2Fsstabellini%2Fxen-unstable.git%2F.git

xen/arm: add colored flag to page struct

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 <206497@studenti.unimore.it>
Signed-off-by: Marco Solieri <marco.solieri@unimore.it>
---

diff --git a/xen/include/asm-arm/mm.h b/xen/include/asm-arm/mm.h
index 6b4eef2dd2..92bd5c90b5 100644
--- a/xen/include/asm-arm/mm.h
+++ b/xen/include/asm-arm/mm.h
@@ -88,6 +88,10 @@ struct page_info
          */
         u32 tlbflush_timestamp;
     };
+
+    /* Is page managed by the cache-colored allocator? */
+    bool colored;
+
     u64 pad;
 };