[PATCH 3/5] bsp/xen: Implement BSP

Jeff Kubascik jeff.kubascik at dornerworks.com
Mon Dec 2 18:58:15 UTC 2019


Implement the Xen BSP for Xen on ARM.
---
 bsps/arm/xen/config/{no_bsp.cfg => xen.inc} |   7 +-
 bsps/arm/xen/config/xen_virtual.cfg         |   1 +
 bsps/arm/xen/console/console.c              | 260 ++++----------------
 bsps/arm/xen/headers.am                     |   6 +-
 bsps/arm/xen/include/bsp.h                  |  77 ++++--
 bsps/arm/xen/include/bsp/irq.h              |  63 ++++-
 bsps/arm/xen/include/tm27.h                 |  39 ++-
 bsps/arm/xen/start/bsp_specs                |  12 +-
 bsps/arm/xen/start/bspstart.c               |  55 ++++-
 bsps/arm/xen/start/bspstarthooks.c          |  44 ++++
 bsps/arm/xen/start/bspstartmmu.c            |  73 ++++++
 bsps/arm/xen/start/linkcmds.in              | 115 ++++-----
 c/src/lib/libbsp/arm/acinclude.m4           |   2 +
 c/src/lib/libbsp/arm/xen/Makefile.am        |  42 ++--
 c/src/lib/libbsp/arm/xen/configure.ac       |  43 +++-
 15 files changed, 503 insertions(+), 336 deletions(-)
 rename bsps/arm/xen/config/{no_bsp.cfg => xen.inc} (56%)
 create mode 100644 bsps/arm/xen/config/xen_virtual.cfg
 create mode 100644 bsps/arm/xen/start/bspstarthooks.c
 create mode 100644 bsps/arm/xen/start/bspstartmmu.c

diff --git a/bsps/arm/xen/config/no_bsp.cfg b/bsps/arm/xen/config/xen.inc
similarity index 56%
rename from bsps/arm/xen/config/no_bsp.cfg
rename to bsps/arm/xen/config/xen.inc
index 15e2f29bff..2ec17435a9 100644
--- a/bsps/arm/xen/config/no_bsp.cfg
+++ b/bsps/arm/xen/config/xen.inc
@@ -1,12 +1,13 @@
 #
-#  Configuration file for the "no_bsp" board
+#  Configuration file for the "xen" board
 #
 
 include $(RTEMS_ROOT)/make/custom/default.cfg
 
-RTEMS_CPU=no_cpu
+RTEMS_CPU = arm
+
+CPU_CFLAGS = -march=armv7-a -mthumb -mfpu=neon -mfloat-abi=hard
 
-# Miscellaneous additions go here. Typical options usually look like
 CFLAGS_OPTIMIZE_V += -O2 -g
 CFLAGS_OPTIMIZE_V += -ffunction-sections -fdata-sections
 
diff --git a/bsps/arm/xen/config/xen_virtual.cfg b/bsps/arm/xen/config/xen_virtual.cfg
new file mode 100644
index 0000000000..10b1db231e
--- /dev/null
+++ b/bsps/arm/xen/config/xen_virtual.cfg
@@ -0,0 +1 @@
+include $(RTEMS_ROOT)/make/custom/xen.inc
diff --git a/bsps/arm/xen/console/console.c b/bsps/arm/xen/console/console.c
index 41c17c29ef..786b98f3ba 100644
--- a/bsps/arm/xen/console/console.c
+++ b/bsps/arm/xen/console/console.c
@@ -1,217 +1,63 @@
 /*
- *  This file contains the template for a console IO package.
- *
- *  COPYRIGHT (c) 1989-1999.
- *  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.
- */
-
-#define NO_BSP_INIT
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik at dornerworks.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <rtems/bspIo.h>
 
 #include <bsp.h>
-#include <rtems/libio.h>
-
-/*  console_initialize
- *
- *  This routine initializes the console IO driver.
- *
- *  Input parameters: NONE
- *
- *  Output parameters:  NONE
- *
- *  Return values:
- */
-
-rtems_device_driver console_initialize(
-  rtems_device_major_number  major,
-  rtems_device_minor_number  minor,
-  void                      *arg
-)
-{
-  rtems_status_code status;
-
-  status = rtems_io_register_name(
-    "/dev/console",
-    major,
-    (rtems_device_minor_number) 0
-  );
-
-  if (status != RTEMS_SUCCESSFUL)
-    rtems_fatal_error_occurred(status);
-
-  return RTEMS_SUCCESSFUL;
-}
-
-/*  is_character_ready
- *
- *  This routine returns TRUE if a character is available.
- *
- *  Input parameters: NONE
- *
- *  Output parameters:  NONE
- *
- *  Return values:
- */
-
-bool is_character_ready(
-  char *ch
-)
-{
-  *ch = '\0';   /* return NULL for no particular reason */
-  return true;
-}
-
-/*  inbyte
- *
- *  This routine reads a character from the SOURCE.
- *
- *  Input parameters: NONE
- *
- *  Output parameters:  NONE
- *
- *  Return values:
- *    character read from SOURCE
- */
-
-char inbyte( void )
-{
-  /*
-   *  If polling, wait until a character is available.
-   */
-
-  return '\0';
-}
-
-/*  outbyte
- *
- *  This routine transmits a character out the SOURCE.  It may support
- *  XON/XOFF flow control.
- *
- *  Input parameters:
- *    ch  - character to be transmitted
- *
- *  Output parameters:  NONE
- */
-
-void outbyte(
-  char ch
-)
-{
-  /*
-   *  If polling, wait for the transmitter to be ready.
-   *  Check for flow control requests and process.
-   *  Then output the character.
-   */
-
-  /*
-   *  Carriage Return/New line translation.
-   */
-
-  if ( ch == '\n' )
-    outbyte( '\r' );
-}
-
-/*
- *  Open entry point
- */
-
-rtems_device_driver console_open(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void                    * arg
-)
-{
-  return RTEMS_SUCCESSFUL;
-}
-
-/*
- *  Close entry point
- */
-
-rtems_device_driver console_close(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void                    * arg
-)
-{
-  return RTEMS_SUCCESSFUL;
-}
-
-/*
- * read bytes from the serial port. We only have stdin.
- */
-
-rtems_device_driver console_read(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void                    * arg
-)
-{
-  rtems_libio_rw_args_t *rw_args;
-  char *buffer;
-  int maximum;
-  int count = 0;
-
-  rw_args = (rtems_libio_rw_args_t *) arg;
-
-  buffer = rw_args->buffer;
-  maximum = rw_args->count;
-
-  for (count = 0; count < maximum; count++) {
-    buffer[ count ] = inbyte();
-    if (buffer[ count ] == '\n' || buffer[ count ] == '\r') {
-      buffer[ count++ ]  = '\n';
-      break;
-    }
+#include <bsp/arm-pl011.h>
+#include <bsp/console-termios.h>
+#include <bsp/irq-generic.h>
+
+#include <bspopts.h>
+
+arm_pl011_context xen_vpl011_context = {
+  .base = RTEMS_TERMIOS_DEVICE_CONTEXT_INITIALIZER("PL011"),
+  .regs = (volatile pl011 *) BSP_XEN_VPL011_BASE,
+  .irq = GUEST_VPL011_SPI,
+  .initial_baud = 115200
+};
+
+const console_device console_device_table[] = {
+  {
+    .device_file = "/dev/ttyS0",
+    .probe = console_device_probe_default,
+    .handler = &arm_pl011_fns,
+    .context = &xen_vpl011_context.base
   }
+};
 
-  rw_args->bytes_moved = count;
-  return (count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED;
-}
-
-/*
- * write bytes to the serial port. Stdout and stderr are the same.
- */
+const size_t console_device_count = RTEMS_ARRAY_SIZE(console_device_table);
 
-rtems_device_driver console_write(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void                    * arg
-)
+static void output_char( char c )
 {
-  int count;
-  int maximum;
-  rtems_libio_rw_args_t *rw_args;
-  char *buffer;
-
-  rw_args = (rtems_libio_rw_args_t *) arg;
-
-  buffer = rw_args->buffer;
-  maximum = rw_args->count;
-
-  for (count = 0; count < maximum; count++) {
-    if ( buffer[ count ] == '\n') {
-      outbyte('\r');
-    }
-    outbyte( buffer[ count ] );
-  }
-
-  rw_args->bytes_moved = maximum;
-  return 0;
+  arm_pl011_write_polled(&xen_vpl011_context.base, c);
 }
 
-/*
- *  IO Control entry point
- */
+BSP_output_char_function_type BSP_output_char = output_char;
 
-rtems_device_driver console_control(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void                    * arg
-)
-{
-  return RTEMS_SUCCESSFUL;
-}
+BSP_polling_getchar_function_type BSP_poll_char = NULL;
diff --git a/bsps/arm/xen/headers.am b/bsps/arm/xen/headers.am
index fe2f157349..952fa37670 100644
--- a/bsps/arm/xen/headers.am
+++ b/bsps/arm/xen/headers.am
@@ -1,10 +1,10 @@
 ## This file was generated by "./boostrap -H".
 
 include_HEADERS =
-include_HEADERS += ../../../../../../bsps/no_cpu/no_bsp/include/bsp.h
+include_HEADERS += ../../../../../../bsps/arm/xen/include/bsp.h
 include_HEADERS += include/bspopts.h
-include_HEADERS += ../../../../../../bsps/no_cpu/no_bsp/include/tm27.h
+include_HEADERS += ../../../../../../bsps/arm/xen/include/tm27.h
 
 include_bspdir = $(includedir)/bsp
 include_bsp_HEADERS =
-include_bsp_HEADERS += ../../../../../../bsps/no_cpu/no_bsp/include/bsp/irq.h
+include_bsp_HEADERS += ../../../../../../bsps/arm/xen/include/bsp/irq.h
diff --git a/bsps/arm/xen/include/bsp.h b/bsps/arm/xen/include/bsp.h
index 46a20fc831..e5b23a902e 100644
--- a/bsps/arm/xen/include/bsp.h
+++ b/bsps/arm/xen/include/bsp.h
@@ -1,57 +1,86 @@
 /**
  * @file
  *
- * @ingroup RTEMSBSPsNoCPUNoBsp
+ * @ingroup RTEMSBSPsARMxen
  *
  * @brief Global BSP definitions.
  */
 
-/*  bsp.h
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
  *
- *  This include file contains all board IO definitions.
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik at dornerworks.com>
  *
- *  XXX : put yours in here
- */
-
-/*
- *  COPYRIGHT (c) 1989-1999.
- *  On-Line Applications Research Corporation (OAR).
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
  *
- *  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.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef LIBBSP_NO_CPU_NO_BSP_BSP_H
-#define LIBBSP_NO_CPU_NO_BSP_BSP_H
+#ifndef LIBBSP_ARM_XEN_BSP_H
+#define LIBBSP_ARM_XEN_BSP_H
 
 /**
- * @addtogroup RTEMSBSPsNoCPU
+ * @addtogroup RTEMSBSPsARM
  *
  * @{
  */
 
 #include <bspopts.h>
+
+#define BSP_FEATURE_IRQ_EXTENSION
+
+#ifndef ASM
+
 #include <bsp/default-initial-extension.h>
+#include <bsp/start.h>
 
 #include <rtems.h>
 
 #ifdef __cplusplus
 extern "C" {
-#endif
+#endif /* __cplusplus */
 
-/* functions */
+#define BSP_ARM_GIC_CPUIF_BASE 0x03002000
+#define BSP_ARM_GIC_CPUIF_LENGTH 0x1000
 
-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  */
-);
+#define BSP_ARM_GIC_DIST_BASE 0x03001000
+#define BSP_ARM_GIC_DIST_LENGTH 0x1000
+
+#define BSP_ARM_A9MPCORE_SCU_BASE 0
+
+#define BSP_ARM_A9MPCORE_GT_BASE 0
+
+#define BSP_XEN_VPL011_BASE 0x22000000
+#define BSP_XEN_VPL011_LENGTH 0x1000
+
+void arm_generic_timer_get_config(uint32_t *frequency, uint32_t *irq);
+
+BSP_START_TEXT_SECTION void bsp_xen_setup_mmu_and_cache(void);
 
 #ifdef __cplusplus
 }
-#endif
+#endif /* __cplusplus */
+
+#endif /* ASM */
 
 /** @} */
 
-#endif
+#endif /* LIBBSP_ARM_XEN_BSP_H */
diff --git a/bsps/arm/xen/include/bsp/irq.h b/bsps/arm/xen/include/bsp/irq.h
index 8a97d7a1b0..dc09e52373 100644
--- a/bsps/arm/xen/include/bsp/irq.h
+++ b/bsps/arm/xen/include/bsp/irq.h
@@ -1 +1,62 @@
-#include <bsp/irq-default.h>
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik at dornerworks.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef LIBBSP_ARM_XEN_IRQ_H
+#define LIBBSP_ARM_XEN_IRQ_H
+
+#ifndef ASM
+
+#include <rtems/irq.h>
+#include <rtems/irq-extension.h>
+
+#include <bsp/arm-gic-irq.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#define BSP_INTERRUPT_VECTOR_MIN 0
+#define BSP_INTERRUPT_VECTOR_MAX 1023
+
+/* Xen guest interrupts */
+#define GUEST_TIMER_VIRT_PPI 27
+#define GUEST_TIMER_PHYS_S_PPI 29
+#define GUEST_TIMER_PHYS_NS_PPI 30
+#define GUEST_EVTCHN_PPI 31
+
+#define GUEST_VPL011_SPI 32
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* ASM */
+
+#endif /* LIBBSP_ARM_XEN_IRQ_H */
diff --git a/bsps/arm/xen/include/tm27.h b/bsps/arm/xen/include/tm27.h
index 0dfa7bf628..2fc4afa4f2 100644
--- a/bsps/arm/xen/include/tm27.h
+++ b/bsps/arm/xen/include/tm27.h
@@ -1 +1,38 @@
-#include <rtems/tm27-default.h>
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik at dornerworks.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTEMS_TMTEST27
+#error "This is an RTEMS internal file you must not include directly."
+#endif
+
+#ifndef __tm27_h
+#define __tm27_h
+
+#include <bsp/arm-gic-tm27.h>
+
+#endif /* __tm27_h */
diff --git a/bsps/arm/xen/start/bsp_specs b/bsps/arm/xen/start/bsp_specs
index 140802f2c0..47dd31d46b 100644
--- a/bsps/arm/xen/start/bsp_specs
+++ b/bsps/arm/xen/start/bsp_specs
@@ -1,7 +1,9 @@
-%rename lib old_lib
+%rename endfile old_endfile
+%rename startfile old_startfile
 
-*lib:
-%{!qrtems: %(old_lib)} \
-%{!nostdlib: %{qrtems: --start-group -lrtemsbsp -lrtemscpu -lc -lgcc --end-group \
-%{!qnolinkcmds: -T linkcmds%s}}}
+*startfile:
+%{!qrtems: %(old_startfile)} \
+%{!nostdlib: %{qrtems: crti.o%s crtbegin.o%s}}
 
+*endfile:
+%{!qrtems: %(old_endfiles)} %{qrtems: crtend.o%s crtn.o%s}
diff --git a/bsps/arm/xen/start/bspstart.c b/bsps/arm/xen/start/bspstart.c
index b77b971ca1..6b826fc917 100644
--- a/bsps/arm/xen/start/bspstart.c
+++ b/bsps/arm/xen/start/bspstart.c
@@ -1,20 +1,48 @@
 /*
- *  This routine starts the application.  It includes application,
- *  board, and monitor specific initialization and configuration.
- *  The generic CPU dependent initialization has been performed
- *  before this routine is invoked.
+ * SPDX-License-Identifier: BSD-2-Clause
  *
- *  COPYRIGHT (c) 1989-1999.
- *  On-Line Applications Research Corporation (OAR).
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik at dornerworks.com>
  *
- *  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.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <string.h>
-
 #include <bsp.h>
+#include <bsp/bootcard.h>
+#include <bsp/irq-generic.h>
+#include <bsp/linker-symbols.h>
+
+#include <libcpu/arm-cp15.h>
+
+void arm_generic_timer_get_config( uint32_t *frequency, uint32_t *irq )
+{
+  *frequency = arm_cp15_get_counter_frequency();
+
+#ifdef ARM_GENERIC_TIMER_USE_VIRTUAL
+  *irq = GUEST_TIMER_VIRT_PPI;
+#else
+  *irq = GUEST_TIMER_PHYS_NS_PPI;
+#endif
+}
 
 /*
  *  bsp_start
@@ -24,4 +52,9 @@
 
 void bsp_start( void )
 {
+  bsp_interrupt_initialize();
+  rtems_cache_coherent_add_area(
+    bsp_section_nocacheheap_begin,
+    (uintptr_t) bsp_section_nocacheheap_size
+  );
 }
diff --git a/bsps/arm/xen/start/bspstarthooks.c b/bsps/arm/xen/start/bspstarthooks.c
new file mode 100644
index 0000000000..120535c60f
--- /dev/null
+++ b/bsps/arm/xen/start/bspstarthooks.c
@@ -0,0 +1,44 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik at dornerworks.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <bsp.h>
+#include <bsp/start.h>
+#include <bsp/arm-a9mpcore-start.h>
+
+BSP_START_TEXT_SECTION void bsp_start_hook_0(void)
+{
+  /* Do nothing */
+}
+
+BSP_START_TEXT_SECTION void bsp_start_hook_1(void)
+{
+  arm_a9mpcore_start_set_vector_base();
+  bsp_start_copy_sections();
+  bsp_xen_setup_mmu_and_cache();
+  bsp_start_clear_bss();
+}
diff --git a/bsps/arm/xen/start/bspstartmmu.c b/bsps/arm/xen/start/bspstartmmu.c
new file mode 100644
index 0000000000..b24af89d41
--- /dev/null
+++ b/bsps/arm/xen/start/bspstartmmu.c
@@ -0,0 +1,73 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik at dornerworks.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define ARM_CP15_TEXT_SECTION BSP_START_TEXT_SECTION
+
+#include <bsp.h>
+#include <bsp/start.h>
+#include <bsp/arm-cp15-start.h>
+#include <bsp/arm-a9mpcore-start.h>
+
+BSP_START_DATA_SECTION static const arm_cp15_start_section_config
+xen_bsp_mmu_config_table[] = {
+  ARMV7_CP15_START_DEFAULT_SECTIONS,
+  {
+    .begin = BSP_ARM_GIC_DIST_BASE,
+    .end = BSP_ARM_GIC_DIST_BASE + BSP_ARM_GIC_DIST_LENGTH,
+    .flags = ARMV7_MMU_DEVICE
+  }, {
+    .begin = BSP_ARM_GIC_CPUIF_BASE,
+    .end = BSP_ARM_GIC_CPUIF_BASE + BSP_ARM_GIC_CPUIF_LENGTH,
+    .flags = ARMV7_MMU_DEVICE
+  }, {
+    .begin = BSP_XEN_VPL011_BASE,
+    .end = BSP_XEN_VPL011_BASE + BSP_XEN_VPL011_LENGTH,
+    .flags = ARMV7_MMU_DEVICE
+  }
+};
+
+/*
+ * Make weak and let the user override.
+ */
+BSP_START_TEXT_SECTION void bsp_xen_setup_mmu_and_cache(void) __attribute__ ((weak));
+
+BSP_START_TEXT_SECTION void bsp_xen_setup_mmu_and_cache(void)
+{
+  uint32_t ctrl = arm_cp15_start_setup_mmu_and_cache(
+    ARM_CP15_CTRL_TRE | ARM_CP15_CTRL_A,
+    ARM_CP15_CTRL_AFE | ARM_CP15_CTRL_Z
+  );
+
+  arm_cp15_start_setup_translation_table_and_enable_mmu_and_cache(
+    ctrl,
+    (uint32_t *) bsp_translation_table_base,
+    ARM_MMU_DEFAULT_CLIENT_DOMAIN,
+    &xen_bsp_mmu_config_table[0],
+    RTEMS_ARRAY_SIZE(xen_bsp_mmu_config_table)
+  );
+}
diff --git a/bsps/arm/xen/start/linkcmds.in b/bsps/arm/xen/start/linkcmds.in
index 6f2fda7b41..944687679b 100644
--- a/bsps/arm/xen/start/linkcmds.in
+++ b/bsps/arm/xen/start/linkcmds.in
@@ -1,71 +1,62 @@
 /*
- *  This file contains directives for the GNU linker which are specific
- *  to the NO_CPU NO_BSP BOARD.
+ * SPDX-License-Identifier: BSD-2-Clause
  *
- *  COPYRIGHT (c) 1989-1999.
- *  On-Line Applications Research Corporation (OAR).
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik at dornerworks.com>
  *
- *  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.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
  */
 
-MEMORY
-	{
-	ram : org = 0x0, l = 1M
-	}
+MEMORY {
+   RAM_MMU   : ORIGIN = @GUEST_RAM_BASE@, LENGTH = @GUEST_RAM_MMU_LENGTH@
+   RAM       : ORIGIN = @GUEST_RAM_BASE@ + @GUEST_LOAD_OFFSET@, LENGTH = @GUEST_RAM_LENGTH@ - @GUEST_LOAD_OFFSET@ - @GUEST_RAM_NOCACHE_LENGTH@
+   NOCACHE   : ORIGIN = @GUEST_RAM_BASE@ + @GUEST_RAM_LENGTH@ - @GUEST_RAM_NOCACHE_LENGTH@, LENGTH = @GUEST_RAM_NOCACHE_LENGTH@
+}
 
-SECTIONS
-{
-        .text 0x0 :
-	{
-	text_start = . ;
-	_text_start = . ;
-        *(.text)
-	. = ALIGN (16);
+REGION_ALIAS ("REGION_START",          RAM);
+REGION_ALIAS ("REGION_VECTOR",         RAM);
+REGION_ALIAS ("REGION_TEXT",           RAM);
+REGION_ALIAS ("REGION_TEXT_LOAD",      RAM);
+REGION_ALIAS ("REGION_RODATA",         RAM);
+REGION_ALIAS ("REGION_RODATA_LOAD",    RAM);
+REGION_ALIAS ("REGION_DATA",           RAM);
+REGION_ALIAS ("REGION_DATA_LOAD",      RAM);
+REGION_ALIAS ("REGION_FAST_TEXT",      RAM);
+REGION_ALIAS ("REGION_FAST_TEXT_LOAD", RAM);
+REGION_ALIAS ("REGION_FAST_DATA",      RAM);
+REGION_ALIAS ("REGION_FAST_DATA_LOAD", RAM);
+REGION_ALIAS ("REGION_BSS",            RAM);
+REGION_ALIAS ("REGION_WORK",           RAM);
+REGION_ALIAS ("REGION_STACK",          RAM);
+REGION_ALIAS ("REGION_NOCACHE",        NOCACHE);
+REGION_ALIAS ("REGION_NOCACHE_LOAD",   NOCACHE);
 
-	/*
-	 * Special FreeBSD sysctl sections.
-	 */
-	. = ALIGN (16);
-	__start_set_sysctl_set = .;
-	*(set_sysctl_*);
-	__stop_set_sysctl_set = ABSOLUTE(.);
-	*(set_domain_*);
-	*(set_pseudo_*);
+bsp_stack_abt_size = DEFINED (bsp_stack_abt_size) ? bsp_stack_abt_size : 1024;
 
-	*(.eh_fram)
-	. = ALIGN (16);
+bsp_section_rwbarrier_align = DEFINED (bsp_section_rwbarrier_align) ? bsp_section_rwbarrier_align : 1M;
 
-	/*
-	 * C++ constructors
-	 */
-	__CTOR_LIST__ = .;
-	LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
-	*(.ctors)
-	LONG(0)
-	__CTOR_END__ = .;
-	__DTOR_LIST__ = .;
-	LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
-	*(.dtors)
-	LONG(0)
-	__DTOR_END__ = .;
-	_etext = ALIGN( 0x10 ) ;
-        }
-        .data ADDR( .text ) + SIZEOF( .text ):
-	{
-	data_start = . ;
-	_data_start = . ;
-        *(.data)
-	_edata = ALIGN( 0x10 ) ;
-        }
-        .bss ADDR( .data ) + SIZEOF( .data ):
-        {
-	bss_start = . ;
-	_bss_start = . ;
-	*(.bss)
-	*(COMMON)
-	end = . ;
-	__end = . ;
-	}
-}
+bsp_vector_table_in_start_section = 1;
+
+bsp_translation_table_base = ORIGIN (RAM_MMU);
+bsp_translation_table_end = ORIGIN (RAM_MMU) + LENGTH (RAM_MMU);
+
+INCLUDE linkcmds.armv4
diff --git a/c/src/lib/libbsp/arm/acinclude.m4 b/c/src/lib/libbsp/arm/acinclude.m4
index 04557a6d69..4d50477eb3 100644
--- a/c/src/lib/libbsp/arm/acinclude.m4
+++ b/c/src/lib/libbsp/arm/acinclude.m4
@@ -40,6 +40,8 @@ AC_DEFUN([RTEMS_CHECK_BSPDIR],
     AC_CONFIG_SUBDIRS([stm32f4]);;
   tms570 )
     AC_CONFIG_SUBDIRS([tms570]);;
+  xen )
+    AC_CONFIG_SUBDIRS([xen]);;
   xilinx-zynq )
     AC_CONFIG_SUBDIRS([xilinx-zynq]);;
   xilinx-zynqmp )
diff --git a/c/src/lib/libbsp/arm/xen/Makefile.am b/c/src/lib/libbsp/arm/xen/Makefile.am
index 9f9b6426bd..fecb665af4 100644
--- a/c/src/lib/libbsp/arm/xen/Makefile.am
+++ b/c/src/lib/libbsp/arm/xen/Makefile.am
@@ -3,11 +3,15 @@ ACLOCAL_AMFLAGS = -I ../../../../aclocal
 include $(top_srcdir)/../../../../automake/compile.am
 include $(top_srcdir)/../../bsp.am
 
-dist_project_lib_DATA = ../../../../../../bsps/no_cpu/no_bsp/start/bsp_specs
+dist_project_lib_DATA = ../../../../../../bsps/arm/xen/start/bsp_specs
 
 noinst_PROGRAMS =
 
-project_lib_DATA = linkcmds
+start.$(OBJEXT): ../../../../../../bsps/arm/shared/start/start.S
+	$(CPPASCOMPILE) -o $@ -c $<
+project_lib_DATA = start.$(OBJEXT)
+
+project_lib_DATA += linkcmds
 
 project_lib_LIBRARIES = librtemsbsp.a
 librtemsbsp_a_SOURCES =
@@ -15,24 +19,30 @@ librtemsbsp_a_SOURCES =
 # startup
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspfatal-default.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspgetworkarea-default.c
-librtemsbsp_a_SOURCES += ../../../../../../bsps/no_cpu/no_bsp/start/bspstart.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/xen/start/bspstart.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/xen/start/bspstarthooks.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/xen/start/bspstartmmu.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/sbrk.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/getentropy/getentropy-cpucounter.c
-librtemsbsp_a_SOURCES += ../../../../../../bsps/no_cpu/no_bsp/start/setvec.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspreset-empty.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/start/bsp-start-memcpy.S
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/cp15/arm-cp15-set-exception-handler.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/cp15/arm-cp15-set-ttb-entries.c
 # clock
-librtemsbsp_a_SOURCES +=../../../../../../bsps/no_cpu/no_bsp/clock/ckinit.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/clock/clock-generic-timer.c
+# cache
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/cache/cache-cp15.c
+# irq
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-default-handler.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/irq/irq-gic.c
 # console
-librtemsbsp_a_SOURCES += ../../../../../../bsps/no_cpu/no_bsp/console/console.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/xen/console/console.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/serial/console-termios.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/serial/console-termios-init.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/arm/shared/serial/arm-pl011.c
 # timer
-librtemsbsp_a_SOURCES += ../../../../../../bsps/no_cpu/no_bsp/btimer/btimer.c
-librtemsbsp_a_SOURCES += ../../../../../../bsps/no_cpu/no_bsp/btimer/timerisr.c
-# shmsupp
-librtemsbsp_a_SOURCES += ../../../../../../bsps/no_cpu/no_bsp/mpci/addrconv.c
-librtemsbsp_a_SOURCES += ../../../../../../bsps/no_cpu/no_bsp/mpci/getcfg.c
-librtemsbsp_a_SOURCES += ../../../../../../bsps/no_cpu/no_bsp/mpci/lock.c
-librtemsbsp_a_SOURCES += ../../../../../../bsps/no_cpu/no_bsp/mpci/mpisr.c
-
-include $(srcdir)/../../../../../../bsps/shared/irq-default-sources.am
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/btimer/btimer-stub.c
+
+include $(srcdir)/../../../../../../bsps/shared/irq-sources.am
 include $(srcdir)/../../../../../../bsps/shared/shared-sources.am
-include $(srcdir)/../../../../../../bsps/no_cpu/no_bsp/headers.am
+include $(srcdir)/../../../../../../bsps/arm/xen/headers.am
diff --git a/c/src/lib/libbsp/arm/xen/configure.ac b/c/src/lib/libbsp/arm/xen/configure.ac
index 3e54ec9f34..1e887df8fc 100644
--- a/c/src/lib/libbsp/arm/xen/configure.ac
+++ b/c/src/lib/libbsp/arm/xen/configure.ac
@@ -1,19 +1,56 @@
 ## Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.69])
-AC_INIT([rtems-c-src-lib-libbsp-no_cpu-no_bsp],[_RTEMS_VERSION],[https://devel.rtems.org/newticket])
+AC_INIT([rtems-c-src-lib-libbsp-arm-xen],[_RTEMS_VERSION],[https://devel.rtems.org/newticket])
 RTEMS_TOP(../../../../../..)
 RTEMS_SOURCE_TOP
 RTEMS_BUILD_TOP
-RTEMS_BSP_LINKCMDS
 
 RTEMS_CANONICAL_TARGET_CPU
 AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.12.2])
 RTEMS_BSP_CONFIGURE
 
 
+
+RTEMS_BSPOPTS_SET([BSP_DATA_CACHE_ENABLED],[*qemu],[])
+RTEMS_BSPOPTS_SET([BSP_DATA_CACHE_ENABLED],[*],[1])
+RTEMS_BSPOPTS_HELP([BSP_DATA_CACHE_ENABLED],[enable data cache])
+
+RTEMS_BSPOPTS_SET([BSP_INSTRUCTION_CACHE_ENABLED],[*qemu],[])
+RTEMS_BSPOPTS_SET([BSP_INSTRUCTION_CACHE_ENABLED],[*],[1])
+RTEMS_BSPOPTS_HELP([BSP_INSTRUCTION_CACHE_ENABLED],[enable instruction cache])
+
+RTEMS_BSPOPTS_SET([ARM_GENERIC_TIMER_USE_VIRTUAL],[*],[1])
+RTEMS_BSPOPTS_HELP([ARM_GENERIC_TIMER_USE_VIRTUAL],[Use virtual ARM generic timer])
+
+RTEMS_BSPOPTS_SET([BSP_START_ZIMAGE_HEADER],[*],[1])
+RTEMS_BSPOPTS_HELP([BSP_START_ZIMAGE_HEADER],[include zImage boot header])
+
+RTEMS_BSPOPTS_SET([BSP_XEN_RAM_LENGTH],[*],[8M])
+RTEMS_BSPOPTS_HELP([BSP_XEN_RAM_LENGTH],[override a BSP's default RAM length])
+
+RTEMS_BSPOPTS_SET([BSP_XEN_NOCACHE_LENGTH],[*],[1M])
+RTEMS_BSPOPTS_HELP([BSP_XEN_NOCACHE_LENGTH],[length of nocache RAM region])
+
+GUEST_RAM_BASE="0x40000000"
+GUEST_LOAD_OFFSET="0x8000"
+GUEST_RAM_MMU_LENGTH="16k"
+
+AC_DEFUN([XEN_LINKCMD],[
+AC_ARG_VAR([$1],[$2; default $3])dnl
+[$1]=[$]{[$1]:-[$3]}
+])
+
+XEN_LINKCMD([GUEST_RAM_BASE],[normal RAM region origin],[${GUEST_RAM_BASE}])
+XEN_LINKCMD([GUEST_RAM_LENGTH],[normal RAM region length],[${BSP_XEN_RAM_LENGTH}])
+XEN_LINKCMD([GUEST_LOAD_OFFSET],[entry point of guest],[${GUEST_LOAD_OFFSET}])
+XEN_LINKCMD([GUEST_RAM_MMU_LENGTH],[MMU region length],[${GUEST_RAM_MMU_LENGTH}])
+XEN_LINKCMD([GUEST_RAM_NOCACHE_LENGTH],[length of nocache RAM region],[${BSP_XEN_NOCACHE_LENGTH}])
+
 RTEMS_BSP_CLEANUP_OPTIONS
 
 # Explicitly list all Makefiles here
-AC_CONFIG_FILES([Makefile])
+AC_CONFIG_FILES([
+Makefile
+linkcmds:../../../../../../bsps/arm/xen/start/linkcmds.in])
 AC_OUTPUT
-- 
2.17.1



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