x86: Fix memory_is_conventional_ram() e820 entry size check.

Thanks to Joe Cihula for spotting this.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index 7b04ae5c973f24fd9f64abbc4cb9bde341e06bce..b4d8a8792a8f5567d3e2f44839d6975431bfbac6 100644 (file)
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -298,7 +298,7 @@ int memory_is_conventional_ram(paddr_t p)
     {
         if ( (e820.map[i].type == E820_RAM) &&
              (e820.map[i].addr <= p) &&
-             (e820.map[i].size > p) )
+             ((e820.map[i].addr + e820.map[i].size) > p) )
             return 1;
     }