x86_64: Fix handling of DIRECTMAP_VIRT_START in virt_to_maddr().

Signed-off-by: Xiaowei Yang <xiaowei.yang@intel.com>

diff --git a/xen/include/asm-x86/x86_64/page.h b/xen/include/asm-x86/x86_64/page.h
index ac44a9a1c1de79a23f5dda45ab5b9a5ea1158a95..8899fe777c935b1692dd22ad536a7a78e21c3757 100644 (file)
--- a/xen/include/asm-x86/x86_64/page.h
+++ b/xen/include/asm-x86/x86_64/page.h
@@ -40,7 +40,7 @@ static inline unsigned long __virt_to_maddr(unsigned long va)
     ASSERT(va >= XEN_VIRT_START);
     ASSERT(va < DIRECTMAP_VIRT_END);
     ASSERT((va < XEN_VIRT_END) || (va >= DIRECTMAP_VIRT_START));
-    if ( va > DIRECTMAP_VIRT_START )
+    if ( va >= DIRECTMAP_VIRT_START )
         return va - DIRECTMAP_VIRT_START;
     return va - XEN_VIRT_START + xen_phys_start;
 }