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authorJeff Kubascik <jeff.kubascik@dornerworks.com>2019-12-04 09:29:33 -0500
committerSebastian Huber <sebastian.huber@embedded-brains.de>2019-12-05 07:25:52 +0100
commit4c30acf2c840ab552a080fac156356331e795d63 (patch)
tree7d69a79fb542846f7de16f4581dad81c3bbc648e
parentb51a1d07d007c665eda450ee48fc9b9d80e41251 (diff)
downloadrtems-4c30acf2c840ab552a080fac156356331e795d63.tar.bz2
bsp/xen: Create BSP
Create the Xen BSP for Xen on ARM.
-rw-r--r--bsps/arm/xen/config/xen_virtual.cfg14
-rw-r--r--bsps/arm/xen/console/console.c63
-rw-r--r--bsps/arm/xen/headers.am10
-rw-r--r--bsps/arm/xen/include/bsp.h86
-rw-r--r--bsps/arm/xen/include/bsp/irq.h62
-rw-r--r--bsps/arm/xen/include/tm27.h38
-rw-r--r--bsps/arm/xen/start/bsp_specs9
-rw-r--r--bsps/arm/xen/start/bspstart.c60
-rw-r--r--bsps/arm/xen/start/bspstarthooks.c44
-rw-r--r--bsps/arm/xen/start/bspstartmmu.c73
-rw-r--r--bsps/arm/xen/start/linkcmds.in62
-rw-r--r--c/src/lib/libbsp/arm/acinclude.m42
-rw-r--r--c/src/lib/libbsp/arm/xen/Makefile.am48
-rw-r--r--c/src/lib/libbsp/arm/xen/configure.ac59
14 files changed, 630 insertions, 0 deletions
diff --git a/bsps/arm/xen/config/xen_virtual.cfg b/bsps/arm/xen/config/xen_virtual.cfg
new file mode 100644
index 0000000000..1b5031c3f0
--- /dev/null
+++ b/bsps/arm/xen/config/xen_virtual.cfg
@@ -0,0 +1,14 @@
+#
+# Configuration file for the "xen_virtual" target
+#
+
+include $(RTEMS_ROOT)/make/custom/default.cfg
+
+RTEMS_CPU = arm
+
+CPU_CFLAGS = -march=armv7-a -mthumb -mfpu=neon -mfloat-abi=hard
+
+CFLAGS_OPTIMIZE_V += -O2 -g
+CFLAGS_OPTIMIZE_V += -ffunction-sections -fdata-sections
+
+LDFLAGS = -Wl,--gc-sections
diff --git a/bsps/arm/xen/console/console.c b/bsps/arm/xen/console/console.c
new file mode 100644
index 0000000000..786b98f3ba
--- /dev/null
+++ b/bsps/arm/xen/console/console.c
@@ -0,0 +1,63 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik@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 <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
+ }
+};
+
+const size_t console_device_count = RTEMS_ARRAY_SIZE(console_device_table);
+
+static void output_char( char c )
+{
+ arm_pl011_write_polled(&xen_vpl011_context.base, c);
+}
+
+BSP_output_char_function_type BSP_output_char = output_char;
+
+BSP_polling_getchar_function_type BSP_poll_char = NULL;
diff --git a/bsps/arm/xen/headers.am b/bsps/arm/xen/headers.am
new file mode 100644
index 0000000000..952fa37670
--- /dev/null
+++ b/bsps/arm/xen/headers.am
@@ -0,0 +1,10 @@
+## This file was generated by "./boostrap -H".
+
+include_HEADERS =
+include_HEADERS += ../../../../../../bsps/arm/xen/include/bsp.h
+include_HEADERS += include/bspopts.h
+include_HEADERS += ../../../../../../bsps/arm/xen/include/tm27.h
+
+include_bspdir = $(includedir)/bsp
+include_bsp_HEADERS =
+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
new file mode 100644
index 0000000000..e5b23a902e
--- /dev/null
+++ b/bsps/arm/xen/include/bsp.h
@@ -0,0 +1,86 @@
+/**
+ * @file
+ *
+ * @ingroup RTEMSBSPsARMxen
+ *
+ * @brief Global BSP definitions.
+ */
+
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik@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_BSP_H
+#define LIBBSP_ARM_XEN_BSP_H
+
+/**
+ * @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 /* __cplusplus */
+
+#define BSP_ARM_GIC_CPUIF_BASE 0x03002000
+#define BSP_ARM_GIC_CPUIF_LENGTH 0x1000
+
+#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 /* __cplusplus */
+
+#endif /* ASM */
+
+/** @} */
+
+#endif /* LIBBSP_ARM_XEN_BSP_H */
diff --git a/bsps/arm/xen/include/bsp/irq.h b/bsps/arm/xen/include/bsp/irq.h
new file mode 100644
index 0000000000..dc09e52373
--- /dev/null
+++ b/bsps/arm/xen/include/bsp/irq.h
@@ -0,0 +1,62 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik@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
new file mode 100644
index 0000000000..2fc4afa4f2
--- /dev/null
+++ b/bsps/arm/xen/include/tm27.h
@@ -0,0 +1,38 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik@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
new file mode 100644
index 0000000000..47dd31d46b
--- /dev/null
+++ b/bsps/arm/xen/start/bsp_specs
@@ -0,0 +1,9 @@
+%rename endfile old_endfile
+%rename startfile old_startfile
+
+*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
new file mode 100644
index 0000000000..6b826fc917
--- /dev/null
+++ b/bsps/arm/xen/start/bspstart.c
@@ -0,0 +1,60 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik@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/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
+ *
+ * This routine does the bulk of the system initialization.
+ */
+
+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@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@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
new file mode 100644
index 0000000000..944687679b
--- /dev/null
+++ b/bsps/arm/xen/start/linkcmds.in
@@ -0,0 +1,62 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C) 2019 DornerWorks
+ * Written by Jeff Kubascik <jeff.kubascik@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.
+ */
+
+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@
+}
+
+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);
+
+bsp_stack_abt_size = DEFINED (bsp_stack_abt_size) ? bsp_stack_abt_size : 1024;
+
+bsp_section_rwbarrier_align = DEFINED (bsp_section_rwbarrier_align) ? bsp_section_rwbarrier_align : 1M;
+
+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
new file mode 100644
index 0000000000..fecb665af4
--- /dev/null
+++ b/c/src/lib/libbsp/arm/xen/Makefile.am
@@ -0,0 +1,48 @@
+ACLOCAL_AMFLAGS = -I ../../../../aclocal
+
+include $(top_srcdir)/../../../../automake/compile.am
+include $(top_srcdir)/../../bsp.am
+
+dist_project_lib_DATA = ../../../../../../bsps/arm/xen/start/bsp_specs
+
+noinst_PROGRAMS =
+
+start.$(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 =
+
+# startup
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspfatal-default.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspgetworkarea-default.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/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/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/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/shared/dev/btimer/btimer-stub.c
+
+include $(srcdir)/../../../../../../bsps/shared/irq-sources.am
+include $(srcdir)/../../../../../../bsps/shared/shared-sources.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
new file mode 100644
index 0000000000..effd4986bb
--- /dev/null
+++ b/c/src/lib/libbsp/arm/xen/configure.ac
@@ -0,0 +1,59 @@
+## Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.69])
+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_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([ARM_GENERIC_TIMER_UNMASK_AT_TICK],[*],[1])
+RTEMS_BSPOPTS_HELP([ARM_GENERIC_TIMER_UNMASK_AT_TICK],[unmask the timer in the tick handler, since Xen will mask the virtual timer before injecting the interrupt to the guest])
+
+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
+linkcmds:../../../../../../bsps/arm/xen/start/linkcmds.in])
+AC_OUTPUT