stubdom: Fix modified_memory size calculation

>> is less prioritized than -

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>

diff --git a/tools/ioemu/target-i386-dm/exec-dm.c b/tools/ioemu/target-i386-dm/exec-dm.c
index 1df1ed96c2148608cea79433cb908e209b906d40..74235675f964ac58d502645299c70ef8de854649 100644 (file)
--- a/tools/ioemu/target-i386-dm/exec-dm.c
+++ b/tools/ioemu/target-i386-dm/exec-dm.c
@@ -573,8 +573,8 @@ void cpu_physical_memory_rw(target_phys_addr_t _addr, uint8_t *buf,
 #ifdef CONFIG_STUBDOM
     if (logdirty_bitmap != NULL)
         xc_hvm_modified_memory(xc_handle, domid, _addr >> TARGET_PAGE_BITS,
-                (_addr + _len + TARGET_PAGE_SIZE - 1) >> TARGET_PAGE_BITS
-                    - _addr >> TARGET_PAGE_BITS);
+                ((_addr + _len + TARGET_PAGE_SIZE - 1) >> TARGET_PAGE_BITS)
+                    - (_addr >> TARGET_PAGE_BITS));
 #endif
 
     mapcache_unlock();