bsp/xm_leon3: New BSP

It is necessary that the environment variable XTRATUM_PATH is set to the
XtratuM installation path, e.g.

XTRATUM_PATH="/opt/xtratum/xm"

By default the example_xm_cf.xml will be used for building the tests.
It can be overwritten with setting the XTRATUM_CONFIG environment
variable to another XML file, e.g.

XTRATUM_CONFIG="/some/path/to/rtems_xm_cf.xml"

35 files changed, 2098 insertions, 5 deletions

diff --git a/c/src/lib/libbsp/shared/include/fatal.h b/c/src/lib/libbsp/shared/include/fatal.h
index 3a63fb4b8b..d9ef290ec2 100644
--- a/c/src/lib/libbsp/shared/include/fatal.h
+++ b/c/src/lib/libbsp/shared/include/fatal.h
@@ -44,6 +44,11 @@ typedef enum {
 
   /* XtratuM fatal codes */
   XM_BSP_FATAL_CONSOLE_DEVICE_INSTALL_XM = BSP_FATAL_CODE_BLOCK(7949),
+  XM_BSP_FATAL_CLOCK_IRQ_INSTALL,
+  XM_BSP_FATAL_CPU_SMP_INITIALIZE,
+  XM_BSP_FATAL_SET_TBR_NOT_IMPLEMENTED,
+  XM_BSP_FATAL_GPT_CLOCK_IRQ_INSTALL,
+  XM_BSP_FATAL_CONSOLE_DEVICE_INSTALL_APBUART,
 
   /* ARM fatal codes */
   BSP_ARM_A9MPCORE_FATAL_CLOCK_IRQ_INSTALL = BSP_FATAL_CODE_BLOCK(1),
diff --git a/c/src/lib/libbsp/sparc/acinclude.m4 b/c/src/lib/libbsp/sparc/acinclude.m4
index 4d40305601..b15b647e35 100644
--- a/c/src/lib/libbsp/sparc/acinclude.m4
+++ b/c/src/lib/libbsp/sparc/acinclude.m4
@@ -8,6 +8,8 @@ AC_DEFUN([RTEMS_CHECK_BSPDIR],
     AC_CONFIG_SUBDIRS([leon2]);;
   leon3 )
     AC_CONFIG_SUBDIRS([leon3]);;
+  xm-leon3 )
+    AC_CONFIG_SUBDIRS([xm-leon3]);;
   *)
     AC_MSG_ERROR([Invalid BSP]);;
   esac
diff --git a/c/src/lib/libbsp/sparc/shared/cpu.c b/c/src/lib/libbsp/sparc/shared/cpu.c
index 12d347547b..18566466f8 100644
--- a/c/src/lib/libbsp/sparc/shared/cpu.c
+++ b/c/src/lib/libbsp/sparc/shared/cpu.c
@@ -14,6 +14,7 @@
  */
 
 #include <rtems/score/cpu.h>
+#include <bspopts.h>
 
 /*
  *  This initializes the set of opcodes placed in each trap
@@ -29,7 +30,11 @@
  */
 
 const CPU_Trap_table_entry _CPU_Trap_slot_template = {
+#if defined(RTEMS_PARAVIRT_XTRATUM)
+  0x01000000,      /* nop                       */
+#else /* RTEMS_PARAVIRT_XTRATUM */
   0xa1480000,      /* mov   %psr, %l0           */
+#endif /* RTEMS_PARAVIRT_XTRATUM */
   0x29000000,      /* sethi %hi(_handler), %l4  */
   0x81c52000,      /* jmp   %l4 + %lo(_handler) */
   0xa6102000       /* mov   _vector, %l3        */
diff --git a/c/src/lib/libbsp/sparc/shared/irq_asm.S b/c/src/lib/libbsp/sparc/shared/irq_asm.S
index 7d0312b7e4..0858e2d127 100644
--- a/c/src/lib/libbsp/sparc/shared/irq_asm.S
+++ b/c/src/lib/libbsp/sparc/shared/irq_asm.S
@@ -24,6 +24,9 @@
 #include <rtems/asm.h>
 #include <rtems/score/percpu.h>
 #include <bspopts.h>
+#ifdef RTEMS_PARAVIRT_XTRATUM
+#include <xm.h>
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 
 #if defined(SPARC_USE_SYNCHRONOUS_FP_SWITCH)
   #define FP_FRAME_OFFSET_FO_F1 (SPARC_MINIMUM_STACK_FRAME_SIZE + 0)
@@ -89,7 +92,15 @@ SYM(_CPU_Context_switch):
         ld      [%g6 + PER_CPU_ISR_DISPATCH_DISABLE], %o4
         ! save it a bit later so we do not waste a couple of cycles
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov     %o0, %l6
+        mov     sparc_get_psr_nr, %o0
+        __XM_AHC
+        mov     %o0, %o2
+        mov     %l6, %o0
+#else /* RTEMS_PARAVIRT_XTRATUM */
         rd      %psr, %o2
+#endif /* RTEMS_PARAVIRT_XTRATUM */
         st      %o2, [%o0 + PSR_OFFSET]      ! save status register
 
         ! Now actually save ISR stack nesting prevention flag
@@ -141,6 +152,21 @@ SYM(_CPU_Context_restore_heir):
 
         and     %o2, SPARC_PSR_CWP_MASK, %g3  ! g3 = CWP
         andn    %o2, SPARC_PSR_ET_MASK, %g1   ! g1 = psr with traps disabled
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov     %o0, %g2
+
+        mov     %o1, %g5
+        mov     sparc_flush_regwin_nr, %o0
+        __XM_AHC
+
+        or      %g1, SPARC_PSR_ET_MASK, %g1
+        mov     sparc_set_psr_nr, %o0
+        mov     %g1, %o1
+        __XM_AHC
+
+        mov     %g2, %o0
+        mov     %g5, %o1
+#else /* RTEMS_PARAVIRT_XTRATUM */
         mov     %g1, %psr                     ! **** DISABLE TRAPS ****
         mov     %wim, %g2                     ! g2 = wim
         mov     1, %g4
@@ -196,6 +222,7 @@ done_flushing:
         mov     1, %g4
         sll     %g4, %g2, %g4                 ! g4 = new WIM
         mov     %g4, %wim
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 
 #if defined(RTEMS_SMP)
         /*
@@ -304,7 +331,14 @@ done_flushing:
         PUBLIC(_CPU_Context_restore)
 SYM(_CPU_Context_restore):
         save    %sp, -SPARC_MINIMUM_STACK_FRAME_SIZE, %sp
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov     sparc_get_psr_nr, %o0
+        __XM_AHC
+        mov     %o0, %o2
+#else /* RTEMS_PARAVIRT_XTRATUM */
         rd      %psr, %o2
+#endif /* RTEMS_PARAVIRT_XTRATUM */
+
 #if defined(RTEMS_SMP)
         ! On SPARC the restore path needs also a valid executing context on SMP
         ! to update the is executing indicator.
@@ -356,6 +390,7 @@ win_ovflow:
         mov     %g4, %l4                 ! save the globals this block uses
         mov     %g5, %l5
 
+#ifndef RTEMS_PARAVIRT_XTRATUM
         /*
          *  When at a "window overflow" trap, (wim == (1 << cwp)).
          *  If we get here like that, then process a window overflow.
@@ -419,6 +454,7 @@ win_ovflow:
 
         restore
         nop
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 
 dont_do_the_window:
         /*
@@ -567,7 +603,14 @@ pil_fixed:
         andn     %g5, %l5, %g5
 #endif
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov     sparc_set_psr_nr, %o0
+        mov     %g5, %o1
+        or      %o1, SPARC_PSR_ET_MASK, %o1
+        __XM_AHC
+#else /* RTEMS_PARAVIRT_XTRATUM */
         wr       %g5, SPARC_PSR_ET_MASK, %psr ! **** ENABLE TRAPS ****
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 
         /*
          *  Vector to user's handler.
@@ -773,7 +816,14 @@ isr_dispatch:
 .Lthread_dispatch_done:
 #endif
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov %o0, %g1
+        set sparc_set_pil_nr, %o0
+        __XM_AHC
+        mov %g1, %o0
+#else /* RTEMS_PARAVIRT_XTRATUM */
         ta       SPARC_SWTRAP_IRQDIS ! **** DISABLE INTERRUPTS ****
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 
         /*
          *  While we had ISR dispatching disabled in this thread,
@@ -807,12 +857,23 @@ simple_return:
 
         ldd     [%fp + ISF_PSR_OFFSET], %l0    ! restore psr, PC
         ld      [%fp + ISF_NPC_OFFSET], %l2    ! restore nPC
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov     sparc_get_psr_nr, %o0
+        __XM_AHC
+        mov %o0, %l3
+#else /* RTEMS_PARAVIRT_XTRATUM */
         rd      %psr, %l3
+#endif /* RTEMS_PARAVIRT_XTRATUM */
         and     %l3, SPARC_PSR_CWP_MASK, %l3   ! want "current" CWP
         andn    %l0, SPARC_PSR_CWP_MASK, %l0   ! want rest from task
         or      %l3, %l0, %l0                  ! install it later...
         andn    %l0, SPARC_PSR_ET_MASK, %l0
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov     sparc_ctrl_winflow_nr, %o0
+        __XM_AHC
+#endif /* RTEMS_PARAVIRT_XTRATUM */
+
         /*
          *  Restore tasks global and out registers
          */
@@ -829,6 +890,7 @@ simple_return:
         ldd     [%fp + ISF_I4_OFFSET], %i4    ! restore i4, i5
         ldd     [%fp + ISF_I6_FP_OFFSET], %i6 ! restore i6/fp, i7
 
+#ifndef RTEMS_PARAVIRT_XTRATUM
         /*
          *  Registers:
          *
@@ -891,14 +953,26 @@ simple_return:
         ldd     [%g1 + CPU_STACK_FRAME_I6_FP_OFFSET], %i6
                                            ! reload of sp clobbers ISF
         save                               ! Back to ISR dispatch window
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 
 good_task_window:
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov     %l0, %o1
+        mov     sparc_set_psr_nr, %o0
+        __XM_AHC
+#else /* RTEMS_PARAVIRT_XTRATUM */
         mov     %l0, %psr                  !  **** DISABLE TRAPS ****
         nop; nop; nop
+#endif /* RTEMS_PARAVIRT_XTRATUM */
                                            !  and restore condition codes.
         ld      [%g1 + ISF_G1_OFFSET], %g1 ! restore g1
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov sparc_iret_nr, %o0
+        __XM_AHC
+#else /* RTEMS_PARAVIRT_XTRATUM */
         jmp     %l1                        ! transfer control and
         rett    %l2                        ! go back to tasks window
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 
 /* end of file */
diff --git a/c/src/lib/libbsp/sparc/shared/start/start.S b/c/src/lib/libbsp/sparc/shared/start/start.S
index 64498c6110..494fae5e68 100644
--- a/c/src/lib/libbsp/sparc/shared/start/start.S
+++ b/c/src/lib/libbsp/sparc/shared/start/start.S
@@ -19,8 +19,13 @@
 #include <rtems/score/percpu.h>
 #include <bspopts.h>
 
-#if defined(RTEMS_SMP) && defined(BSP_LEON3_SMP)
-  #define START_LEON3_ENABLE_SMP
+#ifdef RTEMS_PARAVIRT_XTRATUM
+#include <xm.h>
+#endif
+
+#if defined(RTEMS_SMP) && \
+    (defined(BSP_LEON3_SMP) || defined(RTEMS_PARAVIRT_XTRATUM))
+  #define START_ON_SECONDARY_PROCESSOR
 #endif
 
 /*
@@ -114,8 +119,13 @@ SYM(trap_table):
 #else
   BAD_TRAP;                                     ! 04 fp disabled
 #endif
+#ifdef RTEMS_PARAVIRT_XTRATUM
+  BAD_TRAP;                                     ! 05 window overflow
+  BAD_TRAP;                                     ! 06 window underflow
+#else /* RTEMS_PARAVIRT_XTRATUM */
   WOTRAP(5, SYM(window_overflow_trap_handler)); ! 05 window overflow
   WUTRAP(6, SYM(window_underflow_trap_handler));! 06 window underflow
+#endif /* RTEMS_PARAVIRT_XTRATUM */
   BAD_TRAP;                                     ! 07 memory address not aligned
   BAD_TRAP;                                     ! 08 fp exception
   BAD_TRAP;                                     ! 09 data access exception
@@ -207,9 +217,17 @@ SYM(CLOCK_SPEED):
    *        installed before.
    */
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+  SOFT_TRAP;
+#else /* RTEMS_PARAVIRT_XTRATUM */
   TRAP( 0x80, SYM(syscall) );                   ! 80 halt syscall SW trap
-  SOFT_TRAP; SOFT_TRAP;                         ! 81 - 82
+#endif /* RTEMS_PARAVIRT_XTRATUM */
+  SOFT_TRAP; SOFT_TRAP;  	            	! 81 - 82
+#ifdef RTEMS_PARAVIRT_XTRATUM
+  SOFT_TRAP;
+#else /* RTEMS_PARAVIRT_XTRATUM */
   TRAP( 0x83, SYM(window_flush_trap_handler) ); ! 83 flush windows SW trap
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 
   SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! 84 - 87
   SOFT_TRAP;                                    ! 88
@@ -272,6 +290,25 @@ SYM(hard_reset):
 
 /* Common initialisation */
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        /* Set up a valid stack */
+        set     SYM(_RAM_START), %l1
+        set     SYM(_RAM_SIZE), %l2
+        add     %l1, %l2, %sp
+        mov     %g1, %g7
+
+        /* Initialize TBR */
+        set     sparc_write_tbr_nr, %o0
+        set     trap_table, %o1
+        __XM_HC
+
+        /* Enable traps */
+        mov     sparc_get_psr_nr, %o0
+        __XM_AHC
+        or      %o0, SPARC_PSR_ET_MASK, %o1
+        mov     sparc_set_psr_nr, %o0
+        __XM_AHC
+#else /* RTEMS_PARAVIRT_XTRATUM */
         set     SYM(trap_table), %g1    ! Initialize TBR
         mov     %g1, %tbr
 
@@ -288,13 +325,19 @@ SYM(hard_reset):
         nop
         nop
         nop
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 
 	sethi	%hi(_Per_CPU_Information), %g6 ! get per-CPU control
 	add	%g6, %lo(_Per_CPU_Information), %g6
 
-#if defined(START_LEON3_ENABLE_SMP)
+#if defined(START_ON_SECONDARY_PROCESSOR)
+#if defined(RTEMS_PARAVIRT_XTRATUM)
+        set get_vcpuid_nr, %o0          ! get virtual CPU identifier
+	__XM_HC
+#else
 	rd	%asr17, %o0		! get CPU identifier
 	srl	%o0, LEON3_ASR17_PROCESSOR_INDEX_SHIFT, %o0
+#endif
 
 	sll	%o0, PER_CPU_CONTROL_SIZE_LOG2, %l0
 	add	%g6, %l0, %g6
@@ -311,6 +354,13 @@ SYM(hard_reset):
 	andn	%sp, 0x0f, %sp		! align stack on 16-byte boundary
 	mov	%sp, %fp		! set frame pointer
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov     %g7, %o0
+        call    init_libxm              ! initialize libxm
+         sub     %sp, 0x60, %sp
+        add     %sp, 0x60, %sp
+#endif /* RTEMS_PARAVIRT_XTRATUM */
+
 	call	SYM(bsp_start_on_secondary_processor) ! does not return
 	 sub	%sp, SPARC_MINIMUM_STACK_FRAME_SIZE, %sp
 .Lbootcpu:
@@ -367,6 +417,13 @@ zerobss:
         bleu,a zerobss
         nop
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+        mov     %g7, %o0
+        call    init_libxm              ! initialize libxm
+         sub     %sp, 0x60, %sp
+        add     %sp, 0x60, %sp
+#endif /* RTEMS_PARAVIRT_XTRATUM */
+
         mov     %g0, %o0                ! command line
         call    SYM(boot_card)          ! does not return
          sub     %sp, 0x60, %sp         ! room for boot_card to save args
diff --git a/c/src/lib/libbsp/sparc/shared/startup/linkcmds.base b/c/src/lib/libbsp/sparc/shared/startup/linkcmds.base
index 4e391427ab..71044cc95b 100644
--- a/c/src/lib/libbsp/sparc/shared/startup/linkcmds.base
+++ b/c/src/lib/libbsp/sparc/shared/startup/linkcmds.base
@@ -106,6 +106,15 @@ SECTIONS
     *(.shdata)
     . = ALIGN (16);
   } > ram
+
+  /*
+   * Special section for XtratuM hypervisor.  It must have exactly this name and
+   * content.
+   */
+  .xmImageHdr : {
+    KEEP (*(.xmImageHdr))
+  } > ram
+
   .tdata : {
     _TLS_Data_begin = .;
     *(.tdata .tdata.* .gnu.linkonce.td.*)
@@ -181,6 +190,16 @@ SECTIONS
   {
     *(.shbss)
   } > ram
+
+  /*
+   * Special section for read-write data which will be not zero initialized by
+   * the BSS loop.
+   */
+  .rwextra :
+  {
+    *(.bsp_rwextra)
+  } > ram
+
   .bss :
   {
     __bss_start = ALIGN(0x8);
diff --git a/c/src/lib/libbsp/sparc/shared/uart/apbuart_termios.c b/c/src/lib/libbsp/sparc/shared/uart/apbuart_termios.c
index 28ece27d9d..822bd1b0ef 100644
--- a/c/src/lib/libbsp/sparc/shared/uart/apbuart_termios.c
+++ b/c/src/lib/libbsp/sparc/shared/uart/apbuart_termios.c
@@ -22,6 +22,14 @@ static void apbuart_isr(void *arg)
   unsigned int status;
   char data;
 
+#ifdef RTEMS_PARAVIRT_XTRATUM
+  ISR_Level level;
+  _ISR_Disable_without_giant(level);
+  (void) level;
+
+  bsp_unmask_interrupt(uart->irq);
+#endif /* RTEMS_PARAVIRT_XTRATUM */
+
   /* Get all received characters */
   while ((status=uart->regs->status) & APBUART_STATUS_DR) {
     /* Data has arrived, get new data */
@@ -161,13 +169,18 @@ static bool apbuart_set_attributes(
 }
 
 static void apbuart_set_best_baud(
-  const struct apbuart_context *uart,
+  struct apbuart_context *uart,
   struct termios *term
 )
 {
+#ifdef RTEMS_PARAVIRT_XTRATUM
+  rtems_termios_set_best_baud(term, (uint32_t) console_apbuart_initial_baud);
+  apbuart_set_attributes(&uart->base, term);
+#else /* RTEMS_PARAVIRT_XTRATUM */
   uint32_t baud = (uart->freq_hz * 10) / ((uart->regs->scaler * 10 + 5) * 8);
 
   rtems_termios_set_best_baud(term, baud);
+#endif /* RTEMS_PARAVIRT_XTRATUM */
 }
 
 static bool apbuart_first_open_polled(
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/Makefile.am b/c/src/lib/libbsp/sparc/xm-leon3/Makefile.am
new file mode 100644
index 0000000000..01d07f2289
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/Makefile.am
@@ -0,0 +1,108 @@
+ACLOCAL_AMFLAGS = -I ../../../../aclocal
+
+include $(top_srcdir)/../../../../automake/compile.am
+
+include_bspdir = $(includedir)/bsp
+
+dist_project_lib_DATA = bsp_specs
+
+include_HEADERS = include/bsp.h
+include_HEADERS += include/tm27.h
+include_HEADERS += ../../sparc/shared/include/debug_defs.h
+
+include_bsp_HEADERS =
+
+nodist_include_HEADERS = include/bspopts.h
+nodist_include_bsp_HEADERS = ../../shared/include/bootcard.h
+DISTCLEANFILES = include/bspopts.h
+
+noinst_PROGRAMS =
+
+include_HEADERS += include/xtratum.h
+include_HEADERS += ../../shared/include/coverhd.h
+
+noinst_LIBRARIES = libbspstart.a
+CPPFLAGS += -I$(XTRATUM_PATH)/include -D"__XM_INCFLD(_fld)=<xm_inc/_fld>"
+libbspstart_a_SOURCES = ../../sparc/shared/start/start.S
+project_lib_DATA = start.$(OBJEXT)
+
+dist_project_lib_DATA += ../shared/startup/linkcmds.base
+dist_project_lib_DATA += startup/linkcmds
+
+dist_project_lib_DATA += startup/example_xm_cf.xml
+
+noinst_LIBRARIES += libbsp.a
+libbsp_a_SOURCES =
+libbsp_a_LIBADD =
+libbsp_a_CPPFLAGS =
+
+libbsp_a_CPPFLAGS += -I$(XTRATUM_PATH)/include -D"__XM_INCFLD(_fld)=<xm_inc/_fld>"
+
+# XtratuM header
+libbsp_a_SOURCES += xm/xmhdr.c
+
+# startup
+libbsp_a_SOURCES += ../../shared/bspclean.c
+libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += startup/bspstart.c
+libbsp_a_SOURCES += ../../sparc/shared/startup/bspgetworkarea.c
+libbsp_a_SOURCES += ../../shared/sbrk.c
+libbsp_a_SOURCES += startup/isr-en-dis.S
+libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
+libbsp_a_SOURCES += startup/psr.c
+libbsp_a_SOURCES += startup/tbr.c
+libbsp_a_SOURCES += startup/setvec.c
+libbsp_a_SOURCES += startup/spurious.c
+libbsp_a_SOURCES += ../../shared/timerstub.c
+libbsp_a_SOURCES += startup/bspreset.c
+
+if HAS_SMP
+libbsp_a_SOURCES += startup/bspsmp.c
+endif
+
+# ISR Handler
+libbsp_a_SOURCES += ../../sparc/shared/cpu.c
+libbsp_a_SOURCES += ../../sparc/shared/irq_asm.S
+
+# AMBA bus
+include_HEADERS += ../../sparc/shared/include/ambapp.h
+include_HEADERS += ../../sparc/shared/include/ambapp_ids.h
+include_HEADERS += ../../sparc/shared/include/grlib.h
+
+# Console
+include_bsp_HEADERS += ../../sparc/shared/include/apbuart.h
+include_bsp_HEADERS += ../../sparc/shared/include/apbuart_termios.h
+libbsp_a_SOURCES += ../../sparc/shared/uart/apbuart_termios.c
+libbsp_a_SOURCES += ../../shared/console-termios.c
+libbsp_a_SOURCES += ../../shared/xm/console-xm.c
+libbsp_a_SOURCES += ../../shared/xm/printk-support-xm.c
+libbsp_a_SOURCES += console/console-apbuart.c
+
+# Clock
+libbsp_a_SOURCES += clock/clock-xtratum-hw.c
+libbsp_a_SOURCES += clock/clock-xtratum-exec.c
+libbsp_a_SOURCES += clock/clock-gpt.c
+
+# IRQ
+include_bsp_HEADERS += ../../shared/include/irq-generic.h
+include_bsp_HEADERS += ../../shared/include/irq-info.h
+include_bsp_HEADERS += include/irq.h
+
+libbsp_a_SOURCES += ../../shared/src/irq-default-handler.c
+libbsp_a_SOURCES += ../../shared/src/irq-generic.c
+libbsp_a_SOURCES += ../../shared/src/irq-info.c
+libbsp_a_SOURCES += ../../shared/src/irq-legacy.c
+libbsp_a_SOURCES += ../../shared/src/irq-server.c
+libbsp_a_SOURCES += ../../shared/src/irq-shell.c
+libbsp_a_SOURCES += irq/irq.c
+
+# Cache
+libbsp_a_SOURCES += ../../../libcpu/shared/src/cache_manager.c
+libbsp_a_SOURCES += include/cache_.h
+libbsp_a_CPPFLAGS += -I$(srcdir)/../../shared/include
+
+libbsp_a_LIBADD += ../../../libcpu/@RTEMS_CPU@/access.rel \
+    ../../../libcpu/@RTEMS_CPU@/syscall.rel
+
+include $(srcdir)/preinstall.am
+include $(top_srcdir)/../../../../automake/local.am
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/README b/c/src/lib/libbsp/sparc/xm-leon3/README
new file mode 100644
index 0000000000..582aceaf16
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/README
@@ -0,0 +1,123 @@
+Overview
+--------
+
+BSP for use with XtratuM 4 hypervisor.
+
+It is necessary that the environment variable XTRATUM_PATH is set to the
+XtratuM installation path, e.g.
+
+XTRATUM_PATH="/opt/xtratum/xm"
+
+By default the example_xm_cf.xml will be used for building the tests.  It can
+be overwritten with setting the XTRATUM_CONFIG environment variable to another
+XML file, e.g.
+
+XTRATUM_CONFIG="/some/path/to/rtems_xm_cf.xml"
+
+Usage of different clock driver
+-------------------------------
+This BSP provides three clock drivers.
+
+1. The standard clock driver uses the XtratuM hardware clock (XM_HW_CLOCK).
+
+   Configuration:
+
+   #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+
+2. The execution clock driver uses the XtratuM execution clock (XM_EXEC_CLOCK).
+
+   Configuration:
+
+   #define CONFIGURE_APPLICATION_EXTRA_DRIVERS \
+     { .initialization_entry = clock_xtratum_exec_initialize }
+   #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
+
+3. The GPTIMER clock driver uses a GPTIMER module defined via clock_gpt_regs.
+
+   Configuration:
+
+   #define CONFIGURE_APPLICATION_EXTRA_DRIVERS \
+     { .initialization_entry = clock_gpt_initialize }
+   #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
+
+   This GPTIMER module is also used for the CPU counter support if not
+   defined to CLOCK_GPT_NOT_PRESENT.  The clock_gpt_regs must be defined via
+   the linker.  It is assumed that XtratuM initialized the prescaler so that
+   the counter frequency is 1MHz.
+
+   The default memory location and IRQ is defined with linker symbols. You
+   can overwrite them with application specific values to use another memory
+   location and IRQ.
+
+Usage of different console driver
+---------------------------------
+
+This BSP provides two console drivers.
+
+1. The standard console driver uses the XtratuM hypervisor console.
+
+   Configuration:
+
+   #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+
+2. The APBUART console uses the APBUART defined via console_apbuart_regs.
+
+   Configuration:
+
+   #define CONFIGURE_APPLICATION_PREREQUISITE_DRIVERS \
+     CONSOLE_APBUART_DRIVER_TABLE_ENTRY
+
+   Do NOT define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER in your
+   configuration.
+
+   Please note that this driver uses the IRQ defined by XtratuM as
+   XM_VT_HW_UART2_TRAP_NR. If you want to use another UART you have to map
+   the IRQ to this line in your XtratuM configuration.
+
+   Note the XtratuM hypervisor console is used for printk output until this
+   console is initialized.
+
+   The default memory location and IRQ is defined with linker symbols. You
+   can overwrite them with application specific values to use another memory
+   location and IRQ.
+
+List of open points
+-------------------
+
+- Implement or remove _SPARC_Set_TBR(). This function is not currently used by
+  anyone.
+
+- Find a better solution for setting the CPPFLAGS for libbspstart_a_SOURCES in
+  Makefile.am
+
+- Fix C++ support: The C++ exceptions (i.e. in testsuite/samples/cdtest) don't
+  work correctly. The reason is a broken window flush trap procedure (ta 0x3).
+
+Problems with XtratuM API
+-------------------------
+
+- The functions XM_sparc_set_pil and XM_sparc_clear_pil can only write all 0 or
+  all 1 to the PIL. Therefore a read modify write operation with two hypercalls
+  is necessary in the sparc_disable_interrupts and sparc_enable_interrupts
+  functions.
+
+- XM_write_console misses the const attribute for the character array that
+  should be written. Therefore there are warnings when passing the constant
+  string in xtratum_hyper_console_write_support_polled.
+
+- The XtratuM documentation does not clearly specify state and / or value of
+  registers at some points. Therefore this has to be guessed with help of
+  XtratuM sources. That is true for the following points:
+
+  - register usage and values when entering traps
+  - register values on the partition entry point
+  - which registers are preserved over XtratuM hypercalls
+
+- The thread context switch uses too many hypercalls.
+
+- The interrupt handling uses too many hypercalls.
+
+- The lazy hypercall implementation on XtratuM 4.2 is potentially broken on
+  SMP.
+
+- The init_libxm() implementation on XtratuM 4.2 is potentially broken on SMP.
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/bsp_specs b/c/src/lib/libbsp/sparc/xm-leon3/bsp_specs
new file mode 100644
index 0000000000..93d6e75111
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/bsp_specs
@@ -0,0 +1,17 @@
+%rename endfile old_endfile
+%rename startfile old_startfile
+%rename link old_link
+%rename lib old_lib
+
+*endfile:
+crtend.o%s crtn.o%s
+
+*startfile:
+%{!qrtems: %(old_startfile)} \
+%{!nostdlib: %{qrtems: start.o%s crti.o%s crtbegin.o%s}}
+
+*link:
+%{!qrtems: %(old_link)} %{qrtems: -dc -dp -N}
+
+*lib:
+%(old_lib) -lxm
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-gpt.c b/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-gpt.c
new file mode 100644
index 0000000000..5bffa51ed3
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-gpt.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/fatal.h>
+
+#include <xm.h>
+
+/*
+ * First timer generates one interrupt per underflow.  Setup that it underflows
+ * once per tick.
+ */
+#define CLOCK_GPT_IDX_AUTO_RELOAD 0
+
+/*
+ * Second timer is decremented on each underflow of first timer.  So it counts
+ * the ticks.
+ */
+#define CLOCK_GPT_IDX_TICK_CTR (CLOCK_GPT_IDX_AUTO_RELOAD + 1)
+
+#define TRAP_NUMBER \
+  XTRATUM_TRAP_FROM_XM_HW_IRQ((rtems_vector_number)clock_gpt_vt_hw_irq_nr)
+
+static volatile uint32_t lasttime;
+
+static void gpt_clock_handler(void *notused)
+{
+  rtems_interrupt_level level;
+
+  (void) notused;
+
+  clock_gpt_regs.timer[CLOCK_GPT_IDX_AUTO_RELOAD].ctrl
+    |= GPTIMER_TIMER_CTRL_IP;
+
+  /* This prevents infinite nesting of this interrupt */
+  rtems_interrupt_local_disable(level);
+  (void) level;
+
+  bsp_unmask_interrupt(TRAP_NUMBER);
+
+  while (lasttime > clock_gpt_regs.timer[CLOCK_GPT_IDX_TICK_CTR].value) {
+    --lasttime;
+    rtems_clock_tick();
+  }
+}
+
+static uint32_t nanoseconds_since_last_tick(void)
+{
+  uint32_t fast_timer_value;
+  uint32_t lasttime_value_0;
+  uint32_t slow_timer_value_0;
+  uint32_t slow_timer_value_1;
+
+  uint32_t usecs;
+  uint32_t usecs_per_tick = rtems_configuration_get_microseconds_per_tick();
+
+  do {
+    slow_timer_value_0 = clock_gpt_regs.timer[CLOCK_GPT_IDX_TICK_CTR].value;
+    lasttime_value_0 = lasttime;
+    fast_timer_value = clock_gpt_regs.timer[CLOCK_GPT_IDX_AUTO_RELOAD].value;
+    slow_timer_value_1 = clock_gpt_regs.timer[CLOCK_GPT_IDX_TICK_CTR].value;
+  } while (slow_timer_value_0 != slow_timer_value_1);
+
+  usecs = (lasttime_value_0 - slow_timer_value_0) * usecs_per_tick
+          + usecs_per_tick - fast_timer_value;
+
+  return usecs * 1000;
+}
+
+static void clock_handler_install(void)
+{
+  rtems_status_code sc;
+
+  sc = rtems_interrupt_handler_install(
+    TRAP_NUMBER,
+    "Clock",
+    RTEMS_INTERRUPT_UNIQUE,
+    gpt_clock_handler,
+    NULL
+  );
+  if (sc != RTEMS_SUCCESSFUL) {
+    bsp_fatal(XM_BSP_FATAL_GPT_CLOCK_IRQ_INSTALL);
+  }
+}
+
+rtems_device_driver clock_gpt_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  uint64_t freq_hz = (uint32_t) clock_gpt_freq_hz;
+
+  clock_gpt_regs.timer[CLOCK_GPT_IDX_AUTO_RELOAD].ctrl = GPTIMER_TIMER_CTRL_IP;
+  clock_gpt_regs.timer[CLOCK_GPT_IDX_TICK_CTR].ctrl = GPTIMER_TIMER_CTRL_IP;
+
+  clock_handler_install();
+  rtems_clock_set_nanoseconds_extension(nanoseconds_since_last_tick);
+
+  clock_gpt_regs.timer[CLOCK_GPT_IDX_TICK_CTR].reload = 0xFFFFFFFF;
+  lasttime = clock_gpt_regs.timer[CLOCK_GPT_IDX_TICK_CTR].reload;
+  clock_gpt_regs.timer[CLOCK_GPT_IDX_TICK_CTR].ctrl = GPTIMER_TIMER_CTRL_EN
+    | GPTIMER_TIMER_CTRL_LD | GPTIMER_TIMER_CTRL_IP | GPTIMER_TIMER_CTRL_CH;
+
+  clock_gpt_regs.timer[CLOCK_GPT_IDX_AUTO_RELOAD].reload =
+    (uint32_t) ((freq_hz * rtems_configuration_get_microseconds_per_tick())
+      / UINT64_C(1000000)) - 1;
+  clock_gpt_regs.timer[CLOCK_GPT_IDX_AUTO_RELOAD].ctrl = GPTIMER_TIMER_CTRL_EN
+    | GPTIMER_TIMER_CTRL_RS | GPTIMER_TIMER_CTRL_LD | GPTIMER_TIMER_CTRL_IE
+    | GPTIMER_TIMER_CTRL_IP;
+
+  return RTEMS_SUCCESSFUL;
+}
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-xtratum-exec.c b/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-xtratum-exec.c
new file mode 100644
index 0000000000..c0d36ec1e6
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-xtratum-exec.c
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+
+#define XTRATUM_CLOCK XM_EXEC_CLOCK
+#define CLOCK_EXT_TRAP_NUMBER \
+  XTRATUM_TRAP_FROM_XM_EXT_IRQ( XM_VT_EXT_EXEC_TIMER )
+
+#define XTRATUM_CLOCK_INITIALIZE clock_xtratum_exec_initialize
+
+#include "clock-xtratum.h"
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-xtratum-hw.c b/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-xtratum-hw.c
new file mode 100644
index 0000000000..48a7efa062
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-xtratum-hw.c
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#define XTRATUM_CLOCK XM_HW_CLOCK
+#define CLOCK_EXT_TRAP_NUMBER \
+  XTRATUM_TRAP_FROM_XM_EXT_IRQ( XM_VT_EXT_HW_TIMER )
+
+#define XTRATUM_CLOCK_INITIALIZE Clock_initialize
+
+#include "clock-xtratum.h"
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-xtratum.h b/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-xtratum.h
new file mode 100644
index 0000000000..587ae06e08
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/clock/clock-xtratum.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/fatal.h>
+#include <bsp/irq.h>
+#include <xm.h>
+
+static uint32_t lasttime;
+
+static uint32_t xtratum_get_time(void)
+{
+  xmTime_t clocktime;
+
+  XM_get_time(XTRATUM_CLOCK, &clocktime);
+
+  return (uint32_t) clocktime;
+}
+static uint32_t xtratum_clock_nanoseconds_since_last_tick(void)
+{
+  uint32_t now = xtratum_get_time();
+
+  return (now - lasttime) * 1000;
+}
+
+static void xtratum_clock_handler(void *arg)
+{
+  uint32_t us_per_tick = rtems_configuration_get_microseconds_per_tick();
+  uint32_t now = xtratum_get_time();
+
+  (void) arg;
+
+  /* FIXME: What prevents infinite interrupt nesting here? */
+
+  while (lasttime + us_per_tick <= now) {
+    lasttime += us_per_tick;
+    rtems_clock_tick();
+  }
+}
+
+static void xtratum_clock_handler_install(void)
+{
+  rtems_status_code sc;
+
+  sc = rtems_interrupt_handler_install(
+    CLOCK_EXT_TRAP_NUMBER,
+    "Clock",
+    RTEMS_INTERRUPT_UNIQUE,
+    xtratum_clock_handler,
+    NULL
+  );
+  if (sc != RTEMS_SUCCESSFUL) {
+    bsp_fatal(XM_BSP_FATAL_CLOCK_IRQ_INSTALL);
+  }
+}
+
+rtems_device_driver XTRATUM_CLOCK_INITIALIZE(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *arg
+)
+{
+  uint32_t us_per_tick = rtems_configuration_get_microseconds_per_tick();
+  xmTime_t clocktime;
+
+  (void) major;
+  (void) minor;
+  (void) arg;
+
+  XM_get_time(XTRATUM_CLOCK, &clocktime);
+
+  lasttime = (uint32_t) clocktime;
+
+  xtratum_clock_handler_install();
+
+  rtems_clock_set_nanoseconds_extension(
+    xtratum_clock_nanoseconds_since_last_tick
+  );
+
+  XM_set_timer(XTRATUM_CLOCK, clocktime + us_per_tick, us_per_tick);
+
+  return RTEMS_SUCCESSFUL;
+}
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/configure.ac b/c/src/lib/libbsp/sparc/xm-leon3/configure.ac
new file mode 100644
index 0000000000..39ecfde837
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/configure.ac
@@ -0,0 +1,29 @@
+## Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.69])
+AC_INIT([rtems-c-src-lib-libbsp-sparc-xtratum],[_RTEMS_VERSION],[http://www.rtems.org/bugzilla])
+AC_CONFIG_SRCDIR([bsp_specs])
+RTEMS_TOP(../../../../../..)
+
+RTEMS_CANONICAL_TARGET_CPU
+AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.12.2])
+RTEMS_BSP_CONFIGURE
+
+RTEMS_PROG_CC_FOR_TARGET
+RTEMS_CANONICALIZE_TOOLS
+RTEMS_PROG_CCAS
+
+RTEMS_CHECK_NETWORKING
+RTEMS_CHECK_SMP
+
+AM_CONDITIONAL(HAS_NETWORKING,test "$HAS_NETWORKING" = "yes")
+AM_CONDITIONAL(HAS_SMP,[test "$rtems_cv_HAS_SMP" = "yes"])
+
+RTEMS_BSPOPTS_SET([XTRATUM_SIZE_PAGE_TABLE],[*],[256])
+RTEMS_BSPOPTS_HELP([XTRATUM_SIZE_PAGE_TABLE],[Size of the XtratuM page table in pages.])
+
+RTEMS_BSP_CLEANUP_OPTIONS(0, 1)
+
+# Explicitly list all Makefiles here
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/console/console-apbuart.c b/c/src/lib/libbsp/sparc/xm-leon3/console/console-apbuart.c
new file mode 100644
index 0000000000..42ff68f02d
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/console/console-apbuart.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/fatal.h>
+#include <apbuart.h>
+#include <apbuart_termios.h>
+#include <rtems/bspIo.h>
+
+static struct apbuart_context apbuart;
+
+static struct apbuart_regs *dbg_uart = &console_apbuart_regs;
+
+static void apbuart_out_char(char c)
+{
+  apbuart_outbyte_polled(dbg_uart, c, 1, 1);
+}
+
+static int apbuart_in_char(void)
+{
+  return apbuart_inbyte_nonblocking(dbg_uart);
+}
+
+static void preinit_debug_apbuart(void)
+{
+  dbg_uart->ctrl |= APBUART_CTRL_RE | APBUART_CTRL_TE;
+  dbg_uart->status = 0;
+}
+
+rtems_device_driver console_apbuart_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *arg
+)
+{
+  const rtems_termios_device_handler *handler;
+  rtems_status_code status;
+
+  if (console_apbuart_use_interrupts == CONSOLE_APBUART_USE_INTERRUPTS) {
+    handler = &apbuart_handler_interrupt;
+  } else {
+    handler = &apbuart_handler_polled;
+  }
+
+  rtems_termios_device_context_initialize(&apbuart.base, "APBUART");
+
+  apbuart.regs = &console_apbuart_regs;
+  apbuart.freq_hz = (unsigned int) console_apbuart_freq_hz;
+  apbuart.irq = XTRATUM_TRAP_FROM_XM_HW_IRQ(
+    (rtems_vector_number) console_apbuart_vt_hw_irq_nr
+  );
+
+  preinit_debug_apbuart();
+
+  rtems_termios_initialize();
+
+  status = rtems_termios_device_install(
+    CONSOLE_DEVICE_NAME,
+    handler,
+    NULL,
+    &apbuart.base
+  );
+  if (status != RTEMS_SUCCESSFUL) {
+    bsp_fatal(XM_BSP_FATAL_CONSOLE_DEVICE_INSTALL_APBUART);
+  }
+
+  /* Use this UART for printk */
+  BSP_output_char = apbuart_out_char;
+  BSP_poll_char = apbuart_in_char;
+
+  return RTEMS_SUCCESSFUL;
+}
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/include/bsp.h b/c/src/lib/libbsp/sparc/xm-leon3/include/bsp.h
new file mode 100644
index 0000000000..f719f473b6
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/include/bsp.h
@@ -0,0 +1,207 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef LIBBSP_SPARC_XTRATUM_BSP_H
+#define LIBBSP_SPARC_XTRATUM_BSP_H
+
+#include <bspopts.h>
+
+#ifndef ASM
+
+#include <rtems.h>
+#include <xtratum.h>
+#include <grlib.h>
+#include <rtems/console.h>
+#include <rtems/clockdrv.h>
+#include <rtems/irq-extension.h>
+
+#include <bsp/default-initial-extension.h>
+
+#define BSP_FEATURE_IRQ_EXTENSION
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/*
+ * This BSP provides three clock drivers.
+ *
+ * 1. The standard clock driver uses the XtratuM hardware clock (XM_HW_CLOCK).
+ *
+ *    Configuration:
+ *
+ *    #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+ *
+ * 2. The execution clock driver uses the XtratuM execution clock (XM_EXEC_CLOCK).
+ *
+ *    Configuration:
+ *
+ *    #define CONFIGURE_APPLICATION_EXTRA_DRIVERS \
+ *      { .initialization_entry = clock_xtratum_exec_initialize }
+ *    #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
+ *
+ * 3. The GPTIMER clock driver uses a GPTIMER module defined via clock_gpt_regs.
+ *
+ *    Configuration:
+ *
+ *    #define CONFIGURE_APPLICATION_EXTRA_DRIVERS \
+ *      { .initialization_entry = clock_gpt_initialize }
+ *    #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
+ *
+ *    This GPTIMER module is also used for the CPU counter support if not
+ *    defined to CLOCK_GPT_NOT_PRESENT.  The clock_gpt_regs must be defined via
+ *    the linker.  It is assumed that XtratuM initialized the prescaler so that
+ *    the counter frequency is 1MHz.
+ *
+ *    The default memory location and IRQ is defined with linker symbols. You
+ *    can overwrite them with application specific values to use another memory
+ *    location and IRQ.
+ */
+
+rtems_device_driver clock_xtratum_exec_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *arg
+);
+
+/*
+ * The first timer generates one interrupt per underflow it is set up so that
+ * it underflows once per tick.
+ */
+#define CLOCK_GPT_IDX_AUTO_RELOAD 0
+
+/*
+ * The second timer decrements on each underflow of first timer.  So it counts
+ * the ticks.
+ */
+#define CLOCK_GPT_IDX_TICK_CTR (CLOCK_GPT_IDX_AUTO_RELOAD + 1)
+
+/*
+ * The third timer is a free running counter used for the CPU counter support.
+ */
+#define CLOCK_GPT_IDX_CPU_CTR (CLOCK_GPT_IDX_TICK_CTR + 1)
+
+#define CLOCK_GPT_NOT_PRESENT ((volatile struct gptimer_regs *) 0xdeadbee0)
+
+/*
+ * Symbol defined via linker command file.
+ *
+ * Define this symbol to CLOCK_GPT_NOT_PRESENT if you want to use the GPTIMER.
+ */
+extern volatile struct gptimer_regs clock_gpt_regs;
+
+/*
+ * Symbol defined via linker command file.
+ */
+extern char clock_gpt_vt_hw_irq_nr[];
+
+/*
+ * Symbol defined via linker command file.
+ */
+extern char clock_gpt_freq_hz[];
+
+rtems_device_driver clock_gpt_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *arg
+);
+
+/*
+ * This BSP provides two console drivers.
+ *
+ * 1. The standard console driver uses the XtratuM hypervisor console.
+ *
+ *    Configuration:
+ *
+ *    #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+ *
+ * 2. The APBUART console uses the APBUART defined via console_apbuart_regs.
+ *
+ *    Configuration:
+ *
+ *    #define CONFIGURE_APPLICATION_PREREQUISITE_DRIVERS \
+ *      CONSOLE_APBUART_DRIVER_TABLE_ENTRY
+ *
+ *    Do NOT define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER in your
+ *    configuration.
+ *
+ *    Please note that this driver uses the IRQ defined by XtratuM as
+ *    XM_VT_HW_UART2_TRAP_NR. If you want to use another UART you have to map
+ *    the IRQ to this line in your XtratuM configuration.
+ *
+ *    Note the XtratuM hypervisor console is used for printk output until this
+ *    console is initialized.
+ *
+ *    The default memory location and IRQ is defined with linker symbols. You
+ *    can overwrite them with application specific values to use another memory
+ *    location and IRQ.
+ */
+
+/*
+ * Symbol defined via linker command file.
+ */
+extern struct apbuart_regs console_apbuart_regs;
+
+/*
+ * Symbol defined via linker command file.
+ */
+extern char console_apbuart_vt_hw_irq_nr[];
+
+/*
+ * Symbol defined via linker command file.
+ */
+extern char console_apbuart_initial_baud[];
+
+/*
+ * Symbol defined via linker command file.
+ */
+extern char console_apbuart_freq_hz[];
+
+#define CONSOLE_APBUART_USE_INTERRUPTS ((char *) 0xdeadbee0)
+
+/*
+ * Symbol defined via linker command file.
+ *
+ * Define this symbol to CONSOLE_APBUART_USE_INTERRUPTS if you want to use
+ * interrupts for the APBUART console driver.
+ */
+extern char console_apbuart_use_interrupts[];
+
+rtems_device_driver console_apbuart_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *arg
+);
+
+#define CONSOLE_APBUART_DRIVER_TABLE_ENTRY \
+  { console_apbuart_initialize, console_open, console_close, \
+    console_read, console_write, console_control }
+
+extern int end;
+
+rtems_isr_entry set_vector(
+  rtems_isr_entry handler,
+  rtems_vector_number vector,
+  int type
+);
+
+void bsp_spurious_initialize(void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* ASM */
+
+#endif /* LIBBSP_SPARC_XTRATUM_BSP_H */
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/include/cache_.h b/c/src/lib/libbsp/sparc/xm-leon3/include/cache_.h
new file mode 100644
index 0000000000..94025d6437
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/include/cache_.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef XTRATUM_CACHE_H
+#define XTRATUM_CACHE_H
+
+#include <xtratum.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CPU_CACHE_SUPPORT_PROVIDES_RANGE_FUNCTIONS
+
+#define CPU_INSTRUCTION_CACHE_ALIGNMENT 64
+
+#define CPU_DATA_CACHE_ALIGNMENT 64
+
+static inline void _CPU_cache_flush_data_range(
+  const void *d_addr,
+  size_t n_bytes
+)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_invalidate_data_range(
+  const void *d_addr,
+  size_t n_bytes
+)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_freeze_data(void)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_unfreeze_data(void)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_invalidate_entire_instruction(void)
+{
+  __asm__ volatile ("flush");
+}
+
+static inline void _CPU_cache_invalidate_instruction_range(
+  const void *i_addr,
+  size_t n_bytes
+)
+{
+  _CPU_cache_invalidate_entire_instruction();
+}
+
+static inline void _CPU_cache_freeze_instruction(void)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_unfreeze_instruction(void)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_flush_entire_data(void)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_invalidate_entire_data(void)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_enable_data(void)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_disable_data(void)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_enable_instruction(void)
+{
+  /* TODO */
+}
+
+static inline void _CPU_cache_disable_instruction(void)
+{
+  /* TODO */
+}
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* XTRATUM_CACHE_H */
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/include/irq.h b/c/src/lib/libbsp/sparc/xm-leon3/include/irq.h
new file mode 100644
index 0000000000..afa99c050b
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/include/irq.h
@@ -0,0 +1,2 @@
+#define BSP_INTERRUPT_VECTOR_MIN 0
+#define BSP_INTERRUPT_VECTOR_MAX (CPU_INTERRUPT_NUMBER_OF_VECTORS - 1)
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/include/tm27.h b/c/src/lib/libbsp/sparc/xm-leon3/include/tm27.h
new file mode 100644
index 0000000000..85c49637a8
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/include/tm27.h
@@ -0,0 +1,30 @@
+/*
+ *  tm27.h
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _RTEMS_TMTEST27
+#error "This is an RTEMS internal file you must not include directly."
+#endif
+
+#ifndef __tm27_h
+#define __tm27_h
+
+#define TEST_VECTOR SPARC_SYNCHRONOUS_TRAP( 0x90 )
+
+#define MUST_WAIT_FOR_INTERRUPT 1
+
+#define Install_tm27_vector( handler ) \
+  set_vector( (handler), TEST_VECTOR, 1 );
+
+#define Cause_tm27_intr() \
+  __asm__ volatile( "ta 0x10; nop " );
+
+#define Clear_tm27_intr() /* empty */
+
+#define Lower_tm27_intr() /* empty */
+
+#endif /* __tm27_h */
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/include/xtratum.h b/c/src/lib/libbsp/sparc/xm-leon3/include/xtratum.h
new file mode 100644
index 0000000000..df1267c925
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/include/xtratum.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _INCLUDE_XTRATUM_H
+#define _INCLUDE_XTRATUM_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef ASM
+
+/* XtratuM defines traps for the hardware interrupts as well as some XtratuM
+ * Extended interrupts.
+ *   TRAP[0x11..0x1F] <=> Hardware interrupts
+ *   TRAP[0x20..0x2F] <=> Reserved for future architectures
+ *   TRAP[0xE0..0xFF] <=> XtratuM Extended interrupts
+ */
+
+#define XTRATUM_IRQ_HW_LOW_FIRST 0x01
+#define XTRATUM_IRQ_HW_LOW_LAST 0x0F
+#define XTRATUM_TRAP_HW_LOW_OFFSET 0x10
+#define XTRATUM_TRAP_HW_LOW_FIRST \
+  (XTRATUM_TRAP_HW_LOW_OFFSET + XTRATUM_IRQ_HW_LOW_FIRST)
+#define XTRATUM_TRAP_HW_LOW_LAST \
+  (XTRATUM_TRAP_HW_LOW_OFFSET + XTRATUM_IRQ_HW_LOW_LAST)
+
+#define XTRATUM_IRQ_HW_HIGH_FIRST 0x10
+#define XTRATUM_IRQ_HW_HIGH_LAST 0x1F
+#define XTRATUM_TRAP_HW_HIGH_OFFSET 0x20
+#define XTRATUM_TRAP_HW_HIGH_FIRST \
+  (XTRATUM_TRAP_HW_HIGH_OFFSET + XTRATUM_IRQ_HW_HIGH_FIRST)
+#define XTRATUM_TRAP_HW_HIGH_LAST \
+  (XTRATUM_TRAP_HW_HIGH_OFFSET + XTRATUM_IRQ_HW_HIGH_LAST)
+
+#define XTRATUM_TRAP_EXT_OFFSET 0xE0
+#define XTRATUM_TRAP_EXT_FIRST (XTRATUM_TRAP_EXT_OFFSET)
+#define XTRATUM_TRAP_EXT_LAST (XTRATUM_TRAP_EXT_OFFSET + 0x1F)
+
+/* Converter macros for the irq-numbers defined by XtratuM */
+static inline rtems_vector_number XTRATUM_TRAP_FROM_XM_HW_IRQ(
+  uint32_t xm_vt_hw
+)
+{
+  rtems_vector_number vector = 0;
+  if(xm_vt_hw <= XTRATUM_IRQ_HW_LOW_LAST) {
+    vector = xm_vt_hw + XTRATUM_TRAP_HW_LOW_OFFSET;
+  } else {
+    vector = xm_vt_hw + XTRATUM_TRAP_HW_HIGH_OFFSET;
+  }
+  return vector;
+}
+
+#define XTRATUM_TRAP_FROM_XM_EXT_IRQ( xm_vt_ext ) \
+    ((xm_vt_ext) + XTRATUM_TRAP_EXT_OFFSET )
+
+/* Check for the trap number type */
+#define XTRATUM_TRAP_IS_HW_LOW( trap ) \
+  ((trap) >= XTRATUM_TRAP_HW_LOW_FIRST && (trap) <= XTRATUM_TRAP_HW_LOW_LAST)
+
+#define XTRATUM_TRAP_IS_HW_HIGH( trap ) \
+  ((trap) >= XTRATUM_TRAP_HW_HIGH_FIRST && (trap) <= XTRATUM_TRAP_HW_HIGH_LAST)
+
+#define XTRATUM_TRAP_IS_HW( trap ) \
+  (XTRATUM_TRAP_IS_HW_LOW(trap) || XTRATUM_TRAP_IS_HW_HIGH(trap))
+
+#define XTRATUM_TRAP_IS_EXT( trap ) \
+  ((trap) >= XTRATUM_TRAP_EXT_FIRST && (trap) <= XTRATUM_TRAP_EXT_LAST)
+
+#define XTRATUM_TRAP_IS_INTERRUPT( trap ) \
+  (XTRATUM_TRAP_IS_HW( trap ) || XTRATUM_TRAP_IS_EXT( trap ))
+
+/* get masks from trap number */
+static inline uint32_t xtratum_hw_mask( rtems_vector_number vector )
+{
+  uint32_t hw_mask = 0;
+  if ( XTRATUM_TRAP_IS_HW_LOW( vector ) ) {
+    hw_mask = 1 << (vector - XTRATUM_TRAP_HW_LOW_OFFSET);
+  } else if ( XTRATUM_TRAP_IS_HW_HIGH( vector ) ) {
+    hw_mask = 1 << (vector - XTRATUM_TRAP_HW_HIGH_OFFSET);
+  }
+  return hw_mask;
+}
+
+static inline uint32_t xtratum_ext_mask( rtems_vector_number vector )
+{
+  uint32_t ext_mask = 0;
+  if ( XTRATUM_TRAP_IS_EXT( vector ) ) {
+    ext_mask = 1 << (vector - XTRATUM_TRAP_EXT_OFFSET);
+  }
+  return ext_mask;
+}
+
+#endif /* ASM */
+
+void bsp_clear_interrupt( rtems_vector_number vector );
+void bsp_unmask_interrupt( rtems_vector_number vector );
+void bsp_mask_interrupt( rtems_vector_number vector );
+void xtratum_interrupt_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _INCLUDE_XTRATUM_H */
+
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/irq/irq.c b/c/src/lib/libbsp/sparc/xm-leon3/irq/irq.c
new file mode 100644
index 0000000000..3f3cb098a8
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/irq/irq.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+#include <rtems.h>
+#include <bsp.h>
+#include <bsp/irq-generic.h>
+#include <xm.h>
+
+static void bsp_isr_handler(rtems_vector_number vector)
+{
+  bsp_interrupt_handler_dispatch(vector);
+}
+
+void xtratum_interrupt_init(void)
+{
+  rtems_vector_number vector;
+  rtems_isr_entry previous_isr;
+
+  for (
+    vector = XTRATUM_TRAP_HW_LOW_FIRST;
+    vector <= XTRATUM_TRAP_HW_LOW_LAST;
+    vector++
+  ) {
+    rtems_interrupt_catch(bsp_isr_handler, vector, &previous_isr);
+  }
+
+  for (
+    vector = XTRATUM_TRAP_HW_HIGH_FIRST;
+    vector <= XTRATUM_TRAP_HW_HIGH_LAST;
+    vector++
+  ) {
+    rtems_interrupt_catch(bsp_isr_handler, vector, &previous_isr);
+  }
+
+  for (
+    vector = XTRATUM_TRAP_EXT_FIRST;
+    vector <= XTRATUM_TRAP_EXT_LAST;
+    vector++
+  ) {
+    rtems_interrupt_catch(bsp_isr_handler, vector, &previous_isr);
+  }
+
+  bsp_interrupt_initialize();
+}
+
+rtems_status_code bsp_interrupt_facility_initialize(void)
+{
+  return RTEMS_SUCCESSFUL;
+}
+
+rtems_status_code bsp_interrupt_vector_enable(rtems_vector_number vector)
+{
+  bsp_unmask_interrupt(vector);
+
+  return RTEMS_SUCCESSFUL;
+}
+
+rtems_status_code bsp_interrupt_vector_disable(rtems_vector_number vector)
+{
+  bsp_mask_interrupt(vector);
+
+  return RTEMS_SUCCESSFUL;
+}
+
+void bsp_clear_interrupt( rtems_vector_number vector )
+{
+  uint32_t hw_mask = xtratum_hw_mask( vector );
+  uint32_t ext_mask = xtratum_ext_mask( vector );
+
+  XM_clear_irqpend( hw_mask, ext_mask );
+}
+
+void bsp_unmask_interrupt( rtems_vector_number vector )
+{
+  uint32_t hw_mask = xtratum_hw_mask( vector );
+  uint32_t ext_mask = xtratum_ext_mask( vector );
+
+  XM_clear_irqmask( hw_mask, ext_mask );
+}
+
+void bsp_mask_interrupt( rtems_vector_number vector )
+{
+  uint32_t hw_mask = xtratum_hw_mask( vector );
+  uint32_t ext_mask = xtratum_ext_mask( vector );
+
+  XM_set_irqmask( hw_mask, ext_mask );
+}
+
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/make/custom/xm_leon3.cfg b/c/src/lib/libbsp/sparc/xm-leon3/make/custom/xm_leon3.cfg
new file mode 100644
index 0000000000..26832b560f
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/make/custom/xm_leon3.cfg
@@ -0,0 +1,55 @@
+#
+#  Config file for the XtratuM Hypervisor on LEON3.
+#
+
+include $(RTEMS_ROOT)/make/custom/default.cfg
+
+RTEMS_CPU=sparc
+RTEMS_CPU_MODEL=leon3
+
+#  This contains the compiler options necessary to select the CPU model
+#  and (hopefully) optimize for it.
+CPU_CFLAGS = -mcpu=leon3 -muser-mode -msoft-float
+
+# optimize flag: typically -O2
+CFLAGS_OPTIMIZE_V = -O2 -g
+CFLAGS_OPTIMIZE_V += -ffunction-sections -fdata-sections
+
+LDFLAGS = -Wl,--gc-sections
+LDFLAGS += -L"$(XTRATUM_PATH)/lib"
+LDFLAGS += -u xmImageHdr
+
+# Variables for building XtratuM executable
+XMRSWBUILD = $(XTRATUM_PATH)/bin/rswbuild
+XMPACK = $(XTRATUM_PATH)/bin/xmpack
+XMEFORMAT = $(XTRATUM_PATH)/bin/xmeformat
+XMCPARSER = $(XTRATUM_PATH)/bin/xmcparser
+XMCORE = $(XTRATUM_PATH)/lib/xm_core.xef
+
+ifeq ($(XTRATUM_CONFIG),)
+	XTRATUM_CONFIG = $(PROJECT_LIB)/example_xm_cf.xml
+endif
+
+XM_BASENAME = $(basename $@)
+XM_INPUT = $(XM_BASENAME).exe
+XM_XEF = $(XM_BASENAME).xef
+XM_BIN_XMC = $(XM_BASENAME).xm_cf.bin.xmc
+XM_XEF_XMC = $(XM_BASENAME).xm_cf.bin.xmc
+XM_CONTAINER_BIN = $(XM_BASENAME).bin
+XM_EXECUTABLE = $(XM_BASENAME).ralf
+XMPACK_ARGS = -h $(XMCORE):$(XM_XEF_XMC) -p 0:$(XM_XEF)
+
+define bsp-post-link
+	$(default-bsp-post-link)
+
+	$(XMEFORMAT) build $(XM_INPUT) -o $(XM_XEF)
+
+	$(XMCPARSER) -o $(XM_BIN_XMC) $(XTRATUM_CONFIG)
+
+	$(XMEFORMAT) build -m $(XM_BIN_XMC) -c -o $(XM_XEF_XMC)
+
+	$(XMPACK) check $(XM_XEF_XMC) $(XMPACK_ARGS)
+	$(XMPACK) build $(XMPACK_ARGS) $(XM_CONTAINER_BIN)
+
+	$(XMRSWBUILD) $(XM_CONTAINER_BIN) $(XM_EXECUTABLE)
+endef
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/preinstall.am b/c/src/lib/libbsp/sparc/xm-leon3/preinstall.am
new file mode 100644
index 0000000000..7c68ce8b7d
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/preinstall.am
@@ -0,0 +1,115 @@
+## Automatically generated by ampolish3 - Do not edit
+
+if AMPOLISH3
+$(srcdir)/preinstall.am: Makefile.am
+	$(AMPOLISH3) $(srcdir)/Makefile.am > $(srcdir)/preinstall.am
+endif
+
+PREINSTALL_DIRS =
+DISTCLEANFILES += $(PREINSTALL_DIRS)
+
+all-am: $(PREINSTALL_FILES)
+
+PREINSTALL_FILES =
+CLEANFILES = $(PREINSTALL_FILES)
+
+all-local: $(TMPINSTALL_FILES)
+
+TMPINSTALL_FILES =
+CLEANFILES += $(TMPINSTALL_FILES)
+
+$(PROJECT_LIB)/$(dirstamp):
+	@$(MKDIR_P) $(PROJECT_LIB)
+	@: > $(PROJECT_LIB)/$(dirstamp)
+PREINSTALL_DIRS += $(PROJECT_LIB)/$(dirstamp)
+
+$(PROJECT_INCLUDE)/$(dirstamp):
+	@$(MKDIR_P) $(PROJECT_INCLUDE)
+	@: > $(PROJECT_INCLUDE)/$(dirstamp)
+PREINSTALL_DIRS += $(PROJECT_INCLUDE)/$(dirstamp)
+
+$(PROJECT_INCLUDE)/bsp/$(dirstamp):
+	@$(MKDIR_P) $(PROJECT_INCLUDE)/bsp
+	@: > $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+PREINSTALL_DIRS += $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+
+$(PROJECT_LIB)/bsp_specs: bsp_specs $(PROJECT_LIB)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/bsp_specs
+PREINSTALL_FILES += $(PROJECT_LIB)/bsp_specs
+
+$(PROJECT_INCLUDE)/bsp.h: include/bsp.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp.h
+
+$(PROJECT_INCLUDE)/tm27.h: include/tm27.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/tm27.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/tm27.h
+
+$(PROJECT_INCLUDE)/debug_defs.h: ../../sparc/shared/include/debug_defs.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/debug_defs.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/debug_defs.h
+
+$(PROJECT_INCLUDE)/bspopts.h: include/bspopts.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bspopts.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bspopts.h
+
+$(PROJECT_INCLUDE)/bsp/bootcard.h: ../../shared/include/bootcard.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/bootcard.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/bootcard.h
+
+$(PROJECT_INCLUDE)/xtratum.h: include/xtratum.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/xtratum.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/xtratum.h
+
+$(PROJECT_INCLUDE)/coverhd.h: ../../shared/include/coverhd.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/coverhd.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/coverhd.h
+
+$(PROJECT_LIB)/start.$(OBJEXT): start.$(OBJEXT) $(PROJECT_LIB)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/start.$(OBJEXT)
+TMPINSTALL_FILES += $(PROJECT_LIB)/start.$(OBJEXT)
+
+$(PROJECT_LIB)/linkcmds.base: ../shared/startup/linkcmds.base $(PROJECT_LIB)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds.base
+PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds.base
+
+$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
+PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
+
+$(PROJECT_LIB)/example_xm_cf.xml: startup/example_xm_cf.xml $(PROJECT_LIB)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_LIB)/example_xm_cf.xml
+PREINSTALL_FILES += $(PROJECT_LIB)/example_xm_cf.xml
+
+$(PROJECT_INCLUDE)/ambapp.h: ../../sparc/shared/include/ambapp.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/ambapp.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/ambapp.h
+
+$(PROJECT_INCLUDE)/ambapp_ids.h: ../../sparc/shared/include/ambapp_ids.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/ambapp_ids.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/ambapp_ids.h
+
+$(PROJECT_INCLUDE)/grlib.h: ../../sparc/shared/include/grlib.h $(PROJECT_INCLUDE)/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/grlib.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/grlib.h
+
+$(PROJECT_INCLUDE)/bsp/apbuart.h: ../../sparc/shared/include/apbuart.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/apbuart.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/apbuart.h
+
+$(PROJECT_INCLUDE)/bsp/apbuart_termios.h: ../../sparc/shared/include/apbuart_termios.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/apbuart_termios.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/apbuart_termios.h
+
+$(PROJECT_INCLUDE)/bsp/irq-generic.h: ../../shared/include/irq-generic.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/irq-generic.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/irq-generic.h
+
+$(PROJECT_INCLUDE)/bsp/irq-info.h: ../../shared/include/irq-info.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/irq-info.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/irq-info.h
+
+$(PROJECT_INCLUDE)/bsp/irq.h: include/irq.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
+	$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/irq.h
+PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/irq.h
+
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/bspreset.c b/c/src/lib/libbsp/sparc/xm-leon3/startup/bspreset.c
new file mode 100644
index 0000000000..2d5d62bf8b
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/bspreset.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <xm.h>
+#include <bsp/bootcard.h>
+
+void bsp_reset(void)
+{
+  uint32_t self_cpu = rtems_get_current_processor();
+
+  if (self_cpu == 0) {
+    /* Value should give us roughly something in the range of a few
+     * milliseconds. */
+    volatile uint32_t max_wait = 1234567;
+    uint32_t cpu_count = rtems_get_processor_count();
+    uint32_t cpus_halted = 0;
+
+    /* Wait some time for secondary processors to halt */
+    do {
+      xmVirtualCpuStatus_t status;
+      cpus_halted = 0;
+      uint32_t i;
+
+      for (i=1; i<cpu_count; ++i) {
+        XM_get_vcpu_status(i, &status);
+        if (status.state == XM_STATUS_HALTED) {
+          ++cpus_halted;
+        }
+      }
+      --max_wait;
+    } while (cpus_halted < cpu_count - 1 && max_wait > 0);
+
+    XM_halt_partition(XM_PARTITION_SELF);
+  } else {
+    XM_halt_vcpu(self_cpu);
+  }
+
+  while (1);
+}
+
+void _CPU_Fatal_halt(uint32_t source, uint32_t error)
+{
+  (void) source;
+  (void) error;
+
+  bsp_reset();
+}
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/bspsmp.c b/c/src/lib/libbsp/sparc/xm-leon3/startup/bspsmp.c
new file mode 100644
index 0000000000..f604144ffb
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/bspsmp.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <assert.h>
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <xm.h>
+#include <rtems/score/smpimpl.h>
+#include <fatal.h>
+
+#define IPVI_NR( idx ) (XM_VT_EXT_IPVI0 + idx)
+#define IPVI_TRAP_NR( idx ) XTRATUM_TRAP_FROM_XM_EXT_IRQ( IPVI_NR( idx ) )
+
+void start(void);
+extern struct xmImageHdr xmImageHdr;
+
+uint32_t _CPU_SMP_Get_current_processor(void)
+{
+  return XM_get_vcpuid();
+}
+
+static rtems_isr bsp_inter_processor_interrupt(
+  rtems_vector_number vector
+)
+{
+  _SMP_Inter_processor_interrupt_handler();
+}
+
+void bsp_start_on_secondary_processor(void)
+{
+  rtems_vector_number  vector = IPVI_TRAP_NR(_CPU_SMP_Get_current_processor());
+  bsp_unmask_interrupt(vector);
+
+  _SMP_Start_multitasking_on_secondary_processor();
+}
+
+static void install_vector_without_unmask(
+  rtems_isr_entry      new_isr_handler,
+  rtems_vector_number  vector
+) {
+  rtems_isr_entry previous_isr;
+
+  rtems_interrupt_catch(
+    new_isr_handler,
+    vector,
+    &previous_isr
+  );
+
+  bsp_clear_interrupt( vector );
+
+  rtems_cache_invalidate_entire_instruction();
+}
+
+uint32_t _CPU_SMP_Initialize(void)
+{
+  uint32_t cpu_index_self = XM_get_vcpuid();
+  rtems_vector_number  vector = IPVI_TRAP_NR(cpu_index_self);
+
+  if (cpu_index_self != 0) {
+    bsp_fatal(XM_BSP_FATAL_CPU_SMP_INITIALIZE);
+  }
+
+  if (rtems_configuration_get_maximum_processors() > 1) {
+    install_vector_without_unmask(bsp_inter_processor_interrupt, vector);
+    bsp_unmask_interrupt(vector);
+  }
+
+  return XM_get_number_vcpus();
+}
+
+bool _CPU_SMP_Start_processor(uint32_t cpu_index)
+{
+  int32_t rv;
+  rtems_vector_number vector = IPVI_TRAP_NR(cpu_index);
+
+  install_vector_without_unmask(bsp_inter_processor_interrupt, vector);
+
+  rv = XM_reset_vcpu(cpu_index, xmImageHdr.pageTable, (xm_s32_t) start, 0);
+  assert(rv == XM_OK);
+
+  return true;
+}
+
+void _CPU_SMP_Finalize_initialization(uint32_t cpu_count)
+{
+  (void) cpu_count;
+
+  /* Nothing to do */
+}
+
+void _CPU_SMP_Send_interrupt(uint32_t target_processor_index)
+{
+  XM_raise_ipvi(IPVI_NR(target_processor_index));
+}
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/bspstart.c b/c/src/lib/libbsp/sparc/xm-leon3/startup/bspstart.c
new file mode 100644
index 0000000000..8fb454924e
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/bspstart.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/irq.h>
+#include <bsp/bootcard.h>
+
+#include <rtems/counter.h>
+#include <rtems/score/sparcimpl.h>
+
+static CPU_Counter_ticks free_counter_difference(
+  CPU_Counter_ticks second,
+  CPU_Counter_ticks first
+)
+{
+  return first - second;
+}
+
+static void cpu_counter_init(void)
+{
+  volatile struct gptimer_regs *gpt = &clock_gpt_regs;
+
+  if (&clock_gpt_regs != CLOCK_GPT_NOT_PRESENT) {
+    size_t timer_index = CLOCK_GPT_IDX_CPU_CTR;
+
+    gpt->timer[timer_index].reload = 0xffffffff;
+    gpt->timer[timer_index].ctrl = GPTIMER_TIMER_CTRL_EN
+      | GPTIMER_TIMER_CTRL_RS | GPTIMER_TIMER_CTRL_LD;
+
+    _SPARC_Counter_initialize(
+      _SPARC_Counter_read_address,
+      free_counter_difference,
+      (volatile const uint32_t *) &gpt->timer[timer_index].value
+    );
+
+    rtems_counter_initialize_converter(1000000);
+  }
+}
+
+void bsp_start(void)
+{
+  cpu_counter_init();
+  xtratum_interrupt_init();
+}
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/example_xm_cf.xml b/c/src/lib/libbsp/sparc/xm-leon3/startup/example_xm_cf.xml
new file mode 100644
index 0000000000..1747dbf2d2
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/example_xm_cf.xml
@@ -0,0 +1,69 @@
+<?xml version="1.0"?>
+<SystemDescription xmlns="http://www.xtratum.org/xm-3.x" version="1.0.0" name="hello_world">
+  <HwDescription>
+    <MemoryLayout>
+      <Region type="sdram" start="0x0" size="256MB"/>
+      <!-- UART1 -->
+      <Region type="sdram" start="0xFF901000" size="4096B"/>
+      <!-- GPTIMER4 -->
+      <Region type="sdram" start="0xFF90C000" size="4096B"/>
+    </MemoryLayout>
+    <ProcessorTable>
+      <Processor id="0" frequency="150Mhz">
+        <CyclicPlanTable>
+          <Plan id="0" majorFrame="1000ms">
+            <Slot id="0" start="0ms" duration="900ms" partitionId="0" vCpuId="0"/>
+          </Plan>
+        </CyclicPlanTable>
+      </Processor>
+      <Processor id="1" frequency="150Mhz">
+        <CyclicPlanTable>
+          <Plan id="0" majorFrame="1000ms">
+            <Slot id="0" start="0ms" duration="900ms" partitionId="0" vCpuId="1"/>
+          </Plan>
+        </CyclicPlanTable>
+      </Processor>
+      <Processor id="2" frequency="150Mhz">
+        <CyclicPlanTable>
+          <Plan id="0" majorFrame="1000ms">
+            <Slot id="0" start="0ms" duration="900ms" partitionId="0" vCpuId="2"/>
+          </Plan>
+        </CyclicPlanTable>
+      </Processor>
+      <Processor id="3" frequency="150Mhz">
+        <CyclicPlanTable>
+          <Plan id="0" majorFrame="1000ms">
+            <Slot id="0" start="0ms" duration="900ms" partitionId="0" vCpuId="3"/>
+          </Plan>
+        </CyclicPlanTable>
+      </Processor>
+    </ProcessorTable>
+    <Devices>
+      <Uart id="0" baudRate="115200" name="Uart"/>
+    </Devices>
+  </HwDescription>
+  <XMHypervisor console="Uart">
+    <PhysicalMemoryArea size="16MB"/>
+    <IoMmu>
+      <AhbMst id="0" partitionId="0" busRouting="memory" vendorId="0x1" deviceId="0x11" />
+    </IoMmu>
+  </XMHypervisor>
+  <PartitionTable>
+    <Partition id="0" name="Partition1" flags="system" console="Uart" noVCpus="4">
+      <PhysicalMemoryAreas>
+        <Area start="0x02000000" size="16MB"/>
+        <Area start="0xFF901000" size="4096B" mappedAt="0x40901000" flags="uncacheable iommu"/>
+        <Area start="0xFF90C000" size="4096B" mappedAt="0x4090C000" flags="uncacheable iommu"/>
+      </PhysicalMemoryAreas>
+      <HwResources>
+        <Interrupts lines="9 30"/>
+      </HwResources>
+    </Partition>
+  </PartitionTable>
+  <Channels>
+    <Ipvi id="0" sourceId="0" destinationId="0"/>
+    <Ipvi id="1" sourceId="0" destinationId="0"/>
+    <Ipvi id="2" sourceId="0" destinationId="0"/>
+    <Ipvi id="3" sourceId="0" destinationId="0"/>
+  </Channels>
+</SystemDescription>
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/isr-en-dis.S b/c/src/lib/libbsp/sparc/xm-leon3/startup/isr-en-dis.S
new file mode 100644
index 0000000000..c427df7ce7
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/isr-en-dis.S
@@ -0,0 +1,50 @@
+/*
+ *  irq_en_dis.S
+ *
+ *  Disabling or enabling the IRQ.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ *
+ *  COPYRIGHT (c) 1995. European Space Agency.
+ *  COPYRIGHT (c) 2011 UPV (Universidad Politécnica de Valencia)
+ *
+ *  This terms of the RTEMS license apply to this file.
+ */
+
+#include <rtems/asm.h>
+#include <xm.h>
+
+        .seg    "text"
+
+        PUBLIC(sparc_disable_interrupts)
+
+SYM(sparc_disable_interrupts):
+
+	set	sparc_get_psr_nr, %o0
+	__XM_AHC
+	! psr is now in %o0
+	mov	%o0, %g1
+	set	sparc_set_pil_nr, %o0
+	__XM_AHC
+	retl
+	 mov	%g1, %o0
+
+        PUBLIC(sparc_enable_interrupts)
+
+SYM(sparc_enable_interrupts):
+
+	mov	%o0, %g1
+	set	sparc_get_psr_nr, %o0
+	__XM_AHC
+	! psr is now in %o0, old one in %g1
+	and	%g1, SPARC_PSR_PIL_MASK, %g1
+	andn	%o0, SPARC_PSR_PIL_MASK, %o0
+	or	%o0, %g1, %o1
+	set	sparc_set_psr_nr, %o0
+	__XM_AHC
+	retl
+	 nop
+
+/* end of file */
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/linkcmds b/c/src/lib/libbsp/sparc/xm-leon3/startup/linkcmds
new file mode 100644
index 0000000000..019f6f6b6d
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/linkcmds
@@ -0,0 +1,34 @@
+/*  linkcmds
+ */
+
+/* Default values, can be overridden */
+
+_PROM_SIZE = DEFINED (_PROM_SIZE) ? _PROM_SIZE : 0;
+_PROM_START = DEFINED (_PROM_START) ? _PROM_START : 0x00000000;
+
+_RAM_SIZE = DEFINED (_RAM_SIZE) ? _RAM_SIZE : 16M;
+_RAM_START = DEFINED (_RAM_START) ? _RAM_START : 0x02000000;
+
+/* Define it to 0xdeadbee0 to prevent usage of this GPTIMER */
+clock_gpt_regs = DEFINED (clock_gpt_regs) ? clock_gpt_regs : 0x4090c000;
+
+clock_gpt_vt_hw_irq_nr = DEFINED (clock_gpt_vt_hw_irq_nr) ? clock_gpt_vt_hw_irq_nr : 9;
+clock_gpt_freq_hz = DEFINED (clock_gpt_freq_hz) ? clock_gpt_freq_hz : 1000000;
+
+console_apbuart_regs = DEFINED (console_apbuart_regs) ? console_apbuart_regs : 0x40901000;
+console_apbuart_vt_hw_irq_nr = DEFINED (console_apbuart_vt_hw_irq_nr) ? console_apbuart_vt_hw_irq_nr : 30;
+console_apbuart_initial_baud = DEFINED (console_apbuart_initial_baud) ? console_apbuart_initial_baud : 115200;
+console_apbuart_freq_hz = DEFINED (console_apbuart_freq_hz) ? console_apbuart_freq_hz : 150000000;
+
+/* Define it to 0xdeadbee0 to use interrupts (default = polled mode) */
+console_apbuart_use_interrupts = DEFINED (console_apbuart_use_interrupts) ? console_apbuart_use_interrupts : 0;
+
+/* these are the maximum values */
+
+MEMORY
+{
+  rom     : ORIGIN = 0x00000000, LENGTH = 0
+  ram     : ORIGIN = 0x02000000, LENGTH = 16M
+}
+
+INCLUDE linkcmds.base
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/psr.c b/c/src/lib/libbsp/sparc/xm-leon3/startup/psr.c
new file mode 100644
index 0000000000..21a84e76af
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/psr.c
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems/score/sparc.h>
+#include <xm.h>
+
+uint32_t _SPARC_Get_PSR( void )
+{
+  return XM_sparc_get_psr();
+}
+
+void _SPARC_Set_PSR( uint32_t new_psr )
+{
+  XM_sparc_set_psr( new_psr );
+}
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/setvec.c b/c/src/lib/libbsp/sparc/xm-leon3/startup/setvec.c
new file mode 100644
index 0000000000..c370bc9078
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/setvec.c
@@ -0,0 +1,61 @@
+/**  
+ * @file
+ * @ingroup sparc_xtratum
+ * @brief Install an interrupt vector on SPARC
+ */
+
+/*  This routine installs an interrupt vector on the SPARC simulator.
+ *
+ *  INPUT PARAMETERS:
+ *    handler - interrupt handler entry point
+ *    vector  - vector number
+ *    type    - 0 indicates raw hardware connect
+ *              1 indicates RTEMS interrupt connect
+ *
+ *  OUTPUT PARAMETERS:  NONE
+ *
+ *  RETURNS:
+ *    address of previous interrupt handler
+ */ 
+
+/*  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ *
+ *  Ported to LEON implementation of the SPARC by On-Line Applications
+ *  Research Corporation (OAR) under contract to the European Space
+ *  Agency (ESA).
+ *
+ *  LEON modifications of respective RTEMS file: COPYRIGHT (c) 1995.
+ *  European Space Agency.
+ */
+
+#include <bsp.h>
+#include <xm.h>
+
+rtems_isr_entry set_vector(                   /* returns old vector */
+  rtems_isr_entry     handler,                /* isr routine        */
+  rtems_vector_number vector,                 /* vector number      */
+  int                 type                    /* RTEMS or RAW intr  */
+)
+{
+  rtems_isr_entry previous_isr;
+  uint32_t      real_trap;
+
+  if ( type )
+    rtems_interrupt_catch( handler, vector, &previous_isr );
+  else
+    _CPU_ISR_install_raw_handler( vector, handler, (void *)&previous_isr );
+
+  real_trap = SPARC_REAL_TRAP_NUMBER( vector );
+
+  if ( XTRATUM_TRAP_IS_INTERRUPT( real_trap ) ) {
+    bsp_clear_interrupt( real_trap );
+    bsp_unmask_interrupt( real_trap );
+  }
+
+  return previous_isr;
+}
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/spurious.c b/c/src/lib/libbsp/sparc/xm-leon3/startup/spurious.c
new file mode 100644
index 0000000000..336b9f93e8
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/spurious.c
@@ -0,0 +1,35 @@
+/*
+ *  LEON Spurious Trap Handler
+ *
+ *  This is just enough of a trap handler to let us know what
+ *  the likely source of the trap was.
+ *
+ *  Developed as part of the port of RTEMS to the LEON implementation
+ *  of the SPARC by On-Line Applications Research Corporation (OAR)
+ *  under contract to the European Space Agency (ESA).
+ *
+ *  COPYRIGHT (c) 1995. European Space Agency.
+ *
+ *  Modified for LEON3 BSP.
+ *  COPYRIGHT (c) 2004.
+ *  Gaisler Research.
+ *
+ *  This terms of the RTEMS license apply to this file.
+ */
+
+#include <bsp.h>
+#include <rtems/bspIo.h>
+
+void _CPU_Exception_frame_print( const CPU_Exception_frame *frame )
+{
+  uint32_t trap;
+  uint32_t real_trap;
+  const CPU_Interrupt_frame *isf;
+
+  trap = frame->trap;
+  real_trap = SPARC_REAL_TRAP_NUMBER(trap);
+  isf = frame->isf;
+
+  printk( "Unexpected trap (0x%02x) at address 0x%08x\n", real_trap, isf->tpc);
+}
+
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/startup/tbr.c b/c/src/lib/libbsp/sparc/xm-leon3/startup/tbr.c
new file mode 100644
index 0000000000..ad35272662
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/startup/tbr.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems/score/sparc.h>
+#include <xm.h>
+#include <fatal.h>
+
+uint32_t _SPARC_Get_TBR( void )
+{
+  partitionControlTable_t * pct = XM_get_PCT();
+  xmAddress_t tbr = pct->arch.tbr;
+  return tbr;
+}
+
+void _SPARC_Set_TBR( uint32_t new_tbr )
+{
+  /* TODO: implement */
+  bsp_fatal( XM_BSP_FATAL_SET_TBR_NOT_IMPLEMENTED );
+}
diff --git a/c/src/lib/libbsp/sparc/xm-leon3/xm/xmhdr.c b/c/src/lib/libbsp/sparc/xm-leon3/xm/xmhdr.c
new file mode 100644
index 0000000000..d20da6b290
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/xm-leon3/xm/xmhdr.c
@@ -0,0 +1,36 @@
+/*
+ *  xmhdr.c
+ *
+ *  Partition header definition
+ *
+ *  Created for RTEMS/XM3 by Javier Coronel (jacopa@ai2.upv.es)
+ *  $Id: xmhdr.c, 2011/06/08
+ *  
+ *  Porting of RTEMS to XM3.
+ *  It has been performed under IMA-SP project. 
+ *  COPYRIGHT (c) 2011
+ *  UPV (Universidad Politécnica de Valencia)
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ */
+
+#include <xm.h>
+#include <xm_inc/arch/paging.h>
+#include <bsp.h>
+
+static xm_u8_t _pageTable[PAGE_SIZE*XTRATUM_SIZE_PAGE_TABLE] __attribute__((aligned(PAGE_SIZE))) __attribute__ ((section(".bsp_rwextra")));
+
+struct xmImageHdr xmImageHdr __XMIHDR = {
+    .sSignature=XMEF_PARTITION_MAGIC,
+    .compilationXmAbiVersion=XM_SET_VERSION(XM_ABI_VERSION, XM_ABI_SUBVERSION, XM_ABI_REVISION),
+    .compilationXmApiVersion=XM_SET_VERSION(XM_API_VERSION, XM_API_SUBVERSION, XM_API_REVISION),
+    .pageTable=(xmAddress_t)_pageTable,
+    .pageTableSize=XTRATUM_SIZE_PAGE_TABLE*PAGE_SIZE,
+    .noCustomFiles=0,
+    .eSignature=XMEF_PARTITION_MAGIC,
+};
+
+