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yaml --- r: 334792 b: refs/heads/master c: 3ab0b83 h: refs/heads/master v: v3
git-mirror · Oct 19, 2012 · 99795c4 · 99795c4
1 parent aa2d5f2
commit 99795c4
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 965c0aaafe3e75d4e65cd4ec862915869bde3abd
+refs/heads/master: 3ab0b83bf6a1e834f4b884150d8012990c75d25d
diff --git a/trunk/arch/arm/include/asm/xen/interface.h b/trunk/arch/arm/include/asm/xen/interface.h
@@ -29,7 +29,13 @@
 
 #ifndef __ASSEMBLY__
 /* Explicitly size integers that represent pfns in the interface with
- * Xen so that we can have one ABI that works for 32 and 64 bit guests. */
+ * Xen so that we can have one ABI that works for 32 and 64 bit guests.
+ * Note that this means that the xen_pfn_t type may be capable of
+ * representing pfn's which the guest cannot represent in its own pfn
+ * type. However since pfn space is controlled by the guest this is
+ * fine since it simply wouldn't be able to create any sure pfns in
+ * the first place.
+ */
 typedef uint64_t xen_pfn_t;
 #define PRI_xen_pfn "llx"
 typedef uint64_t xen_ulong_t;