diff --git a/bochs/bx_debug/dbg_main.cc b/bochs/bx_debug/dbg_main.cc
index 218f5c775..76a878bc2 100644
--- a/bochs/bx_debug/dbg_main.cc
+++ b/bochs/bx_debug/dbg_main.cc
@@ -620,15 +620,13 @@ void bx_dbg_lin_memory_access(unsigned cpu, bx_address lin, bx_phy_address phy,
   dbg_printf("\n");
 }
 
-void bx_dbg_phy_memory_access(unsigned cpu, bx_phy_address phy, unsigned len, unsigned rw, Bit8u *data)
+void bx_dbg_phy_memory_access(unsigned cpu, bx_phy_address phy, unsigned len, unsigned rw, unsigned access, Bit8u *data)
 {
   bx_dbg_check_memory_watchpoints(cpu, phy, len, rw);
 
   if (! BX_CPU(cpu)->trace_mem)
     return;
 
-  unsigned access = rw >> 4;
-
   static const char *access_string[] = {
     "",
     "PDPTR0",
diff --git a/bochs/bx_debug/debug.h b/bochs/bx_debug/debug.h
index 784144203..4e34dae94 100644
--- a/bochs/bx_debug/debug.h
+++ b/bochs/bx_debug/debug.h
@@ -303,7 +303,7 @@ void bx_dbg_halt(unsigned cpu);
 
 // memory trace callbacks from CPU, len=1,2,4 or 8
 void bx_dbg_lin_memory_access(unsigned cpu, bx_address lin, bx_phy_address phy, unsigned len, unsigned pl, unsigned rw, Bit8u *data);
-void bx_dbg_phy_memory_access(unsigned cpu, bx_phy_address phy, unsigned len, unsigned rw, Bit8u *data);
+void bx_dbg_phy_memory_access(unsigned cpu, bx_phy_address phy, unsigned len, unsigned rw, unsigned attr, Bit8u *data);
 
 // check memory access for watchpoints
 void bx_dbg_check_memory_watchpoints(unsigned cpu, bx_phy_address phy, unsigned len, unsigned rw);