FreeRTOS · amd-asahoo · Jan 6, 2026 · Jan 6, 2026 · Jan 8, 2026 · aggarg
diff --git a/AMD_XEN_V2000_GCC/Makefile.common b/AMD_XEN_V2000_GCC/Makefile.common
@@ -0,0 +1,138 @@
+ # Makefile.common
+ #
+ # Copyright (C) 2025 Advanced Micro Devices, Inc. or its affiliates. All Rights Reserved.
+ #
+ # SPDX-License-Identifier: MIT
+ #
+ # Permission is hereby granted, free of charge, to any person obtaining a copy of
+ # this software and associated documentation files (the "Software"), to deal in
+ # the Software without restriction, including without limitation the rights to
+ # use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ # the Software, and to permit persons to whom the Software is furnished to do so,
+ # subject to the following conditions:
+ #
+ # The above copyright notice and this permission notice shall be included in all
+ # copies or substantial portions of the Software.
+ #
+ # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ # FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ # COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ #
+
+VERSION_HEADER        := $(PROJECT_ROOT)/../include/freertos_version.h
+KERNEL_DIR            := ${FREERTOS_DIR}/Source
+XEN_SRC               := ${PROJECT_ROOT}/../xen/
+
+$(shell rm -f $(VERSION_HEADER))
+BRANCH_NAME := $(shell git describe --tags --exact-match 2>/dev/null || echo "dev")
+FREERTOS_BRANCH_NAME := $(shell cd $(KERNEL_DIR) && git describe --tags --abbrev=0 2>/dev/null || echo "dev")
+FREERTOS_PLUS_BRANCH_NAME := $(shell cd $(FREERTOS_DIR)/../FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI/ && git describe --tags --abbrev=0 2>/dev/null || echo "dev")
+
+INCLUDE_DIRS          += -I${PROJECT_ROOT}/include
+INCLUDE_DIRS          += -I${FREERTOS_DIR}/Demo/Common/include
+INCLUDE_DIRS          += -I${PROJECT_ROOT}/../include
+INCLUDE_DIRS          += -I${KERNEL_DIR}/include
+INCLUDE_DIRS          += -I${PROJECT_ROOT}/../acpica/source/include
+INCLUDE_DIRS          += -I${XEN_SRC}
+INCLUDE_DIRS          += -I${XEN_SRC}/include
+INCLUDE_DIRS          += -I${XEN_SRC}/include/x86
+INCLUDE_DIRS          += -I${FREERTOS_DIR}/../FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI/
+
+SOURCE_FILES           = ${PROJECT_ROOT}/../src/main.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/utils.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/serial.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/IRQ.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/ctype_b_loc.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/ctype_loc.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/io.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/ioapic.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/memory.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/print_vga.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/freertos_acpica.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/freertos_xenbus.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../src/xenbus-watch.c
+
+SOURCE_FILES          += ${PROJECT_ROOT}/../cli/cli.c
+
+SOURCE_FILES          += ${PROJECT_ROOT}/../Support_Files/galileo-support.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../Support_Files/printf.c
+
+# application source files
+SOURCE_FILES          += ${PROJECT_ROOT}/../application/blinky_app.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../application/app_hooks.c
+
+# Demo Test Files related to Queues, Timers and Tasks
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-timer-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-tasknotify-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-tasknotifyarray-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-blockq-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-genqtest-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-qoverwrite-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-qpeek-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-pollq-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-dynamic-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-blocktim-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-countsem-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-semtest-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-eventgroups-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-msgbuffer-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-streambuffer-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-mutex-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-xenbus-read-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-xenbus-ls-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-gnt-test.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-argo-test.c
+
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/test-cmd.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/register_tests.c
+SOURCE_FILES          += ${PROJECT_ROOT}/../tests/run-performance-test.c
+
+# Queues Tasks and Timers
+SOURCE_FILES          += ${FREERTOS_DIR}/Source/list.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Source/queue.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Source/tasks.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Source/timers.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Source/event_groups.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Source/croutine.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Source/stream_buffer.c
+
+# Additional Demo Tests for Queues, Tasks and Timers
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/BlockQ.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/blocktim.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/dynamic.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/GenQTest.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/PollQ.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/QPeek.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/QueueOverwrite.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/TaskNotify.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/TaskNotifyArray.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/countsem.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/QueueSet.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/MessageBufferDemo.c
+SOURCE_FILES          += ${FREERTOS_DIR}/Demo/Common/Minimal/semtest.c
+
+
+# XEN PVN
+SOURCE_FILES          += ${XEN_SRC}/console.c
+SOURCE_FILES          += ${XEN_SRC}/events.c
+SOURCE_FILES          += ${XEN_SRC}/hypervisor.c
+SOURCE_FILES          += ${XEN_SRC}/time.c
+SOURCE_FILES          += ${XEN_SRC}/mm.c
+SOURCE_FILES          += ${XEN_SRC}/e820.c
+SOURCE_FILES          += ${XEN_SRC}/lib/printf.c
+SOURCE_FILES          += ${XEN_SRC}/lib/string.c
+SOURCE_FILES          += ${XEN_SRC}/gnttab.c
+SOURCE_FILES          += ${XEN_SRC}/gntmap.c
+SOURCE_FILES          += ${XEN_SRC}/argo.c
+
+# FreeRTOS CLI Common Wrapper
+SOURCE_FILES          += ${FREERTOS_DIR}/../FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI/FreeRTOS_CLI.c
+
+$(VERSION_HEADER):
+	@echo "#ifndef FREERTOS_VERSION_H" > $(VERSION_HEADER)
+	@echo "#define FREERTOS_VERSION_H" >> $(VERSION_HEADER)
+	@echo "#define FREERTOS_VERSION \"$(BRANCH_NAME), FreeRTOS:${FREERTOS_BRANCH_NAME}, FreeRTOS-Plus-CLI:${FREERTOS_PLUS_BRANCH_NAME}\"" >> $(VERSION_HEADER)
+	@echo "#endif // FREERTOS_VERSION_H" >> $(VERSION_HEADER)
diff --git a/AMD_XEN_V2000_GCC/README.md b/AMD_XEN_V2000_GCC/README.md
@@ -0,0 +1,119 @@
+# FreeRTOS port for Xen
+This repository contains source for FreeRTOS port for xen.
+
+# FreeRTOS port to Xen HVM
+
+## Setup Build Environement
+
+1. Build Host Operating System - Ubuntu 22.04
+2. Install Dependencies
+
+   `apt install -y build-essential grub-common mtools nasm xorriso gcc-multilib`
+
+
+## Build FreeRTOS
+1. Clone FreeRTOS repository
+
+   `cd $HOME`
+
+   `git clone https://github.com/FreeRTOS/FreeRTOS.git --recurse-submodules`
+
+   `cd FreeRTOS/FreeRTOS/Source/`
+
+   `git checkout V11.2.0`
+
+   The above common will clone FreeRTOS resposity in the current working directoy, FreeRTOS kernel source will be cloned under FreeRTOS/FreeRTOS/Source.
+
+2. Build 32-bit FreeRTOS port
+
+   export FREERTOS_DIR=&lt;path containing Source folder from cloned FreeRTOS repository&gt;
+
+   for example export FREERTOS_DIR=$HOME/FreeRTOS/FreeRTOS if git clone for FreeRTOS was done under home directory
+
+   `export FREERTOS_DIR=$HOME/FreeRTOS/FreeRTOS`
+
+    `cd $HOME`
+
+   `git clone https://github.com/AMD-EMBAUTO/FreeRTOS/ FreeRTOS-X86`
+
+   `cd FreeRTOS-X86`
+
+   `git checkout v4.0`
+
+   `cd port_32`
+
+   `make clean`
+
+   `make`
+
+   Make will generate an image file in output/freertos-v4.0-x86_32.iso
+3. Build 64-bit FreeRTOS port
+
+   export FREERTOS_DIR=&lt;path containing Source folder from cloned FreeRTOS repository&gt;
+
+   for example export FREERTOS_DIR=$HOME/FreeRTOS/FreeRTOS if git clone for FreeRTOS was done under home directory
+
+   `export FREERTOS_DIR=$HOME/FreeRTOS/FreeRTOS`
+
+    `cd $HOME`
+
+   `git clone https://github.com/AMD-EMBAUTO/FreeRTOS/ FreeRTOS-X86`
+
+   `cd FreeRTOS-X86`
+
+   `git checkout v4.0`
+
+   `cd port_64`
+
+   `make clean`
+
+   `make`
+
+   Make will generate an image file in output/freertos-v4.0-x86_64.iso
+
+## Create FreeRTOS xen HVM on Celadon board with Yocto
+
+1. Copy HVM and ISO files to board
+
+   use scp command to copy following files
+   - freertos-v4.0-x86_32.iso
+   - freertos32_v4.0.bin
+   - freertos_x86_32.hvm
+   - freertos_x86_32.pvh
+   - freertos-v4.0-x86_64.iso
+   - freertos64_v4.0.bin
+   - freertos_x86_64.pvh
+   - freertos_x86_64.hvm
+
+2. Launch FreeRTOS xen HVM
+
+   *32-bit*
+
+   `xl create freertos_x86_32.hvm`
+
+    *64-bit*
+
+   `xl create freertos_x86_64.hvm` 
+
+3. Launch FreeRTOS xen PVH 
+
+   *32-bit*
+
+   `xl create freertos_x86_32.pvh`
+
+    *64-bit*
+
+   `xl create freertos_x86_64.pvh` 
+
+4. Check DomU created
+
+   `xl list`
+
+5. Connect to console using minicom debug port
+   - find domain id using xl list
+   - xenstore-read /local/domain/{domain_id}/console/tty
+   - minicom -D <output_of_above_command>
+
+6. Connect to xl console
+   - xl console <domain_id|domain_name>
+
diff --git a/AMD_XEN_V2000_GCC/Support_Files/galileo-support.c b/AMD_XEN_V2000_GCC/Support_Files/galileo-support.c
@@ -0,0 +1,140 @@
+/*--------------------------------------------------------------------
+ Copyright(c) 2015 Intel Corporation. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * 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.
+ * Neither the name of Intel Corporation nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ 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.
+ --------------------------------------------------------------------*/
+
+/*-----------------------------------------------------------------------
+ * Any required includes
+ *------------------------------------------------------------------------
+ */
+#include "multiboot.h"
+#include "galileo_support.h"
+#include "serial.h"
+#include "stdlib.h"
+#include "string.h"
+#include "desc.h"
+
+/*-----------------------------------------------------------------------
+ * Any required local definitions
+ *------------------------------------------------------------------------
+ */
+
+
+#if defined(__i386__)
+uint32_t bootinfo = 1UL;
+uint32_t bootsign = 1UL;
+
+
+#define INTR_STACK_SIZE PAGE_SIZE
+static uint8_t intr_stack[INTR_STACK_SIZE] __attribute__((aligned(16)));
+
+hw_tss tss __attribute__((aligned(16))) =
+{
+#if defined(__i386__)
+    .esp0 = (unsigned long)&intr_stack[INTR_STACK_SIZE],
+    .ss0  = __KERN_DS,
+#elif defined(__x86_64__)
+    .rsp0 = (unsigned long)&intr_stack[INTR_STACK_SIZE],
+#endif
+    .iopb = X86_TSS_INVALID_IO_BITMAP,
+};
+
+
+/*------------------------------------------------------------------------
+ * GDT default entries (used in GDT setup code)
+ *------------------------------------------------------------------------
+ */
+static struct sd gdt_default[NGDE] =
+{
+        /*   sd_lolimit  sd_lobase   sd_midbase  sd_access   sd_hilim_fl sd_hibase */
+        /* 0th entry NULL */
+        {            0,          0,           0,         0,            0,        0, },
+        /* 1st, Kernel Code Segment */
+        {       0xffff,          0,           0,      0x9a,         0xcf,        0, },
+        /* 2nd, Kernel Data Segment */
+        {       0xffff,          0,           0,      0x92,         0xcf,        0, },
+        /* 3rd, Kernel Stack Segment */
+        {       0xffff,          0,           0,      0x92,         0xcf,        0, },
+        /* 4st, Boot Code Segment */
+        {       0xffff,          0,           0,      0x9a,         0xcf,        0, },
+        /* 5th, Code Segment for BIOS32 request */
+        {       0xffff,          0,           0,      0x9a,         0xcf,        0, },
+        /* 6th, Data Segment for BIOS32 request */
+        {       0xffff,          0,           0,      0x92,         0xcf,        0, },
+};
+
+extern struct sd gdt[]; /* Global segment table (defined in startup.S) */
+
+/*------------------------------------------------------------------------
+ * Set segment registers (used in GDT setup code)
+ *------------------------------------------------------------------------
+ */
+void setsegs()
+{
+        extern int      __text_end;
+        struct sd       *psd;
+        uint32_t        np, ds_end;
+
+        ds_end = 0xffffffff/PAGE_SIZE;          /* End page number */
+
+        psd = &gdt_default[1];                          /* Kernel code segment */
+        np = ((int)&__text_end - 0 + PAGE_SIZE-1) / PAGE_SIZE;  /* Number of code pages */
+        psd->sd_lolimit = np;
+        psd->sd_hilim_fl = FLAGS_SETTINGS | ((np >> 16) & 0xff);
+
+        psd = &gdt_default[2];                          /* Kernel data segment */
+        psd->sd_lolimit = ds_end;
+        psd->sd_hilim_fl = FLAGS_SETTINGS | ((ds_end >> 16) & 0xff);
+
+        psd = &gdt_default[3];                          /* Kernel stack segment */
+        psd->sd_lolimit = ds_end;
+        psd->sd_hilim_fl = FLAGS_SETTINGS | ((ds_end >> 16) & 0xff);
+
+        psd = &gdt_default[4];                          /* Boot code segment */
+        psd->sd_lolimit = ds_end;
+        psd->sd_hilim_fl = FLAGS_SETTINGS | ((ds_end >> 16) & 0xff);
+
+#if 0
+        extern hw_tss tss;
+        psd = &gdt_default[7];                          /* Boot code segment */
+        uint32_t base=&tss;
+        uint32_t limit=0x67;
+        uint32_t attr=0x89;
+        psd->sd_lolimit = limit&0xffff;
+        psd->sd_lobase = base&0xffff;
+        psd->sd_midbase = (base&0x00ff0000)>>16;
+        psd->sd_access = attr;
+        psd->sd_hilim_fl = 0;
+        psd->sd_hibase = (base&0xff000000)>>24;
+        printf("base: %x\n",base);
+        printf("%x %x %x %x %x %x\n",psd->sd_lolimit,psd->sd_lobase,psd->sd_midbase,psd->sd_access,psd->sd_hilim_fl,psd->sd_hibase);
+#endif
+        memcpy(gdt, gdt_default, sizeof(gdt_default));
+
+}
+#endif