| /* |
| * 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 uint64_t translate_phys_addr(void *env, uint64_t addr) |
| { |
| return cpu_get_phys_page_debug(env, addr); |
| } |
| |
| static void sim_reset(void *env) |
| { |
| cpu_reset(env); |
| } |
| |
| static void sim_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, *rom; |
| 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); |
| } |
| env->sregs[PRID] = n; |
| qemu_register_reset(sim_reset, env); |
| /* Need MMU initialized prior to ELF loading, |
| * so that ELF gets loaded into virtual addresses |
| */ |
| sim_reset(env); |
| } |
| |
| ram = g_malloc(sizeof(*ram)); |
| memory_region_init_ram(ram, NULL, "xtensa.sram", ram_size); |
| memory_region_add_subregion(get_system_memory(), 0, ram); |
| |
| rom = g_malloc(sizeof(*rom)); |
| memory_region_init_ram(rom, NULL, "xtensa.rom", 0x1000); |
| memory_region_add_subregion(get_system_memory(), 0xfe000000, rom); |
| |
| if (kernel_filename) { |
| uint64_t elf_entry; |
| uint64_t elf_lowaddr; |
| #ifdef TARGET_WORDS_BIGENDIAN |
| int success = load_elf(kernel_filename, translate_phys_addr, env, |
| &elf_entry, &elf_lowaddr, NULL, 1, ELF_MACHINE, 0); |
| #else |
| int success = load_elf(kernel_filename, translate_phys_addr, env, |
| &elf_entry, &elf_lowaddr, NULL, 0, ELF_MACHINE, 0); |
| #endif |
| if (success > 0) { |
| env->pc = elf_entry; |
| } |
| } |
| } |
| |
| static void xtensa_sim_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 = "dc232b"; |
| } |
| sim_init(ram_size, boot_device, kernel_filename, kernel_cmdline, |
| initrd_filename, cpu_model); |
| } |
| |
| static QEMUMachine xtensa_sim_machine = { |
| .name = "sim", |
| .desc = "sim machine (dc232b)", |
| .init = xtensa_sim_init, |
| .max_cpus = 4, |
| }; |
| |
| static void xtensa_sim_machine_init(void) |
| { |
| qemu_register_machine(&xtensa_sim_machine); |
| } |
| |
| machine_init(xtensa_sim_machine_init); |