diff options
| -rw-r--r-- | Makefile.target | 1 | ||||
| -rw-r--r-- | hw/xtensa_sample.c | 106 |
2 files changed, 107 insertions, 0 deletions
diff --git a/Makefile.target b/Makefile.target index 2e94a630bc..7833dcc10a 100644 --- a/Makefile.target +++ b/Makefile.target @@ -369,6 +369,7 @@ obj-alpha-y = i8259.o mc146818rtc.o obj-alpha-y += vga.o cirrus_vga.o obj-xtensa-y += xtensa_pic.o +obj-xtensa-y += xtensa_sample.o main.o: QEMU_CFLAGS+=$(GPROF_CFLAGS) diff --git a/hw/xtensa_sample.c b/hw/xtensa_sample.c new file mode 100644 index 0000000000..0aeb7c8ca8 --- /dev/null +++ b/hw/xtensa_sample.c @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * 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 the Open Source and Linux Lab 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 AUTHOR 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 "sysemu.h" +#include "boards.h" +#include "loader.h" +#include "elf.h" +#include "memory.h" +#include "exec-memory.h" + +static void xtensa_sample_reset(void *env) +{ + cpu_reset(env); +} + +static void xtensa_init(ram_addr_t ram_size, + const char *boot_device, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + CPUState *env = NULL; + MemoryRegion *ram; + const size_t dram_size = 0x10000; + const size_t iram_size = 0x20000; + int n; + + for (n = 0; n < smp_cpus; n++) { + env = cpu_init(cpu_model); + if (!env) { + fprintf(stderr, "Unable to find CPU definition\n"); + exit(1); + } + qemu_register_reset(xtensa_sample_reset, env); + } + + ram = g_malloc(sizeof(*ram)); + memory_region_init_ram(ram, NULL, "xtensa.ram", + dram_size + iram_size + ram_size); + memory_region_add_subregion(get_system_memory(), + 0x60000000 - dram_size - iram_size, ram); + + if (kernel_filename) { + uint64_t elf_entry; + uint64_t elf_lowaddr; +#ifdef TARGET_WORDS_BIGENDIAN + int success = load_elf(kernel_filename, NULL, NULL, &elf_entry, + &elf_lowaddr, NULL, 1, ELF_MACHINE, 0); +#else + int success = load_elf(kernel_filename, NULL, NULL, &elf_entry, + &elf_lowaddr, NULL, 0, ELF_MACHINE, 0); +#endif + if (success > 0) { + env->pc = elf_entry; + } + } +} + +static void xtensa_sample_init(ram_addr_t ram_size, + const char *boot_device, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + if (!cpu_model) { + cpu_model = "sample-xtensa-core"; + } + xtensa_init(ram_size, boot_device, kernel_filename, kernel_cmdline, + initrd_filename, cpu_model); +} + +static QEMUMachine xtensa_sample_machine = { + .name = "sample-xtensa-machine", + .desc = "Sample Xtensa machine (sample Xtensa core)", + .init = xtensa_sample_init, + .max_cpus = 4, +}; + +static void xtensa_sample_machine_init(void) +{ + qemu_register_machine(&xtensa_sample_machine); +} + +machine_init(xtensa_sample_machine_init); |