diff --git a/bochs/configure b/bochs/configure
index dabb94d30..367e87063 100755
--- a/bochs/configure
+++ b/bochs/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Id: configure.in 10416 2011-06-22 21:52:35Z vruppert .
+# From configure.in Id: configure.in 10449 2011-07-05 18:31:15Z vruppert .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.65.
 #
@@ -949,6 +949,7 @@ enable_pci
 enable_pcidev
 enable_usb
 enable_usb_ohci
+enable_usb_xhci
 enable_pnic
 enable_repeat_speedups
 enable_fast_function_calls
@@ -1669,6 +1670,7 @@ Optional Features:
   --enable-pcidev                   enable PCI host device mapping support (linux host only)
   --enable-usb                      enable USB UHCI support
   --enable-usb-ohci                 enable USB OHCI support
+  --enable-usb-xhci                 enable experimental USB xHCI support
   --enable-pnic                     enable PCI pseudo NIC support
   --enable-repeat-speedups          support repeated IO and mem copy speedups
   --enable-fast-function-calls      support for fast function calls (gcc on x86 only)
@@ -5105,7 +5107,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 5108 "configure"' > conftest.$ac_ext
+  echo '#line 5110 "configure"' > conftest.$ac_ext
   if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -6794,11 +6796,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:6797: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:6799: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:6801: \$? = $ac_status" >&5
+   echo "$as_me:6803: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -7027,11 +7029,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7030: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7032: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:7034: \$? = $ac_status" >&5
+   echo "$as_me:7036: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -7094,11 +7096,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:7097: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:7099: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:7101: \$? = $ac_status" >&5
+   echo "$as_me:7103: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -8884,7 +8886,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 8887 "configure"
+#line 8889 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -8982,7 +8984,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 8985 "configure"
+#line 8987 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11097,11 +11099,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:11100: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:11102: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:11104: \$? = $ac_status" >&5
+   echo "$as_me:11106: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -11164,11 +11166,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:11167: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:11169: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:11171: \$? = $ac_status" >&5
+   echo "$as_me:11173: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -12189,7 +12191,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 12192 "configure"
+#line 12194 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12287,7 +12289,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 12290 "configure"
+#line 12292 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13110,11 +13112,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13113: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:13115: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:13117: \$? = $ac_status" >&5
+   echo "$as_me:13119: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -13177,11 +13179,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:13180: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:13182: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:13184: \$? = $ac_status" >&5
+   echo "$as_me:13186: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -15142,11 +15144,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15145: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15147: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:15149: \$? = $ac_status" >&5
+   echo "$as_me:15151: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -15375,11 +15377,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15378: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15380: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:15382: \$? = $ac_status" >&5
+   echo "$as_me:15384: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings
@@ -15442,11 +15444,11 @@ else
    -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:15445: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:15447: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:15449: \$? = $ac_status" >&5
+   echo "$as_me:15451: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -17232,7 +17234,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 17235 "configure"
+#line 17237 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -17330,7 +17332,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 17333 "configure"
+#line 17335 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19017,7 +19019,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 19020 "configure"
+#line 19022 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -22179,6 +22181,34 @@ $as_echo "no" >&6; }
 
 
 
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for experimental USB xHCI support" >&5
+$as_echo_n "checking for experimental USB xHCI support... " >&6; }
+# Check whether --enable-usb-xhci was given.
+if test "${enable_usb_xhci+set}" = set; then :
+  enableval=$enable_usb_xhci; if test "$enableval" = yes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+    $as_echo "#define BX_SUPPORT_USB_XHCI 1" >>confdefs.h
+
+    PCI_OBJ="$PCI_OBJ usb_xhci.o"
+    use_usb=1
+   else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    $as_echo "#define BX_SUPPORT_USB_XHCI 0" >>confdefs.h
+
+   fi
+else
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    $as_echo "#define BX_SUPPORT_USB_XHCI 0" >>confdefs.h
+
+
+
 fi