| /* |
| * 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 "qemu/osdep.h" |
| #include "qapi/error.h" |
| #include "cpu.h" |
| #include "sysemu/sysemu.h" |
| #include "hw/boards.h" |
| #include "hw/loader.h" |
| #include "elf.h" |
| #include "exec/memory.h" |
| #include "exec/address-spaces.h" |
| #include "qemu/error-report.h" |
| #include "xtensa_memory.h" |
| |
| static uint64_t translate_phys_addr(void *opaque, uint64_t addr) |
| { |
| XtensaCPU *cpu = opaque; |
| |
| return cpu_get_phys_page_debug(CPU(cpu), addr); |
| } |
| |
| static void sim_reset(void *opaque) |
| { |
| XtensaCPU *cpu = opaque; |
| |
| cpu_reset(CPU(cpu)); |
| } |
| |
| static void xtensa_sim_init(MachineState *machine) |
| { |
| XtensaCPU *cpu = NULL; |
| CPUXtensaState *env = NULL; |
| ram_addr_t ram_size = machine->ram_size; |
| const char *kernel_filename = machine->kernel_filename; |
| int n; |
| |
| for (n = 0; n < smp_cpus; n++) { |
| cpu = XTENSA_CPU(cpu_create(machine->cpu_type)); |
| env = &cpu->env; |
| |
| env->sregs[PRID] = n; |
| qemu_register_reset(sim_reset, cpu); |
| /* Need MMU initialized prior to ELF loading, |
| * so that ELF gets loaded into virtual addresses |
| */ |
| sim_reset(cpu); |
| } |
| |
| if (env) { |
| XtensaMemory sysram = env->config->sysram; |
| |
| sysram.location[0].size = ram_size; |
| xtensa_create_memory_regions(&env->config->instrom, "xtensa.instrom", |
| get_system_memory()); |
| xtensa_create_memory_regions(&env->config->instram, "xtensa.instram", |
| get_system_memory()); |
| xtensa_create_memory_regions(&env->config->datarom, "xtensa.datarom", |
| get_system_memory()); |
| xtensa_create_memory_regions(&env->config->dataram, "xtensa.dataram", |
| get_system_memory()); |
| xtensa_create_memory_regions(&env->config->sysrom, "xtensa.sysrom", |
| get_system_memory()); |
| xtensa_create_memory_regions(&sysram, "xtensa.sysram", |
| get_system_memory()); |
| } |
| |
| if (serial_hd(0)) { |
| xtensa_sim_open_console(serial_hd(0)); |
| } |
| if (kernel_filename) { |
| uint64_t elf_entry; |
| uint64_t elf_lowaddr; |
| #ifdef TARGET_WORDS_BIGENDIAN |
| int success = load_elf(kernel_filename, NULL, |
| translate_phys_addr, cpu, |
| &elf_entry, &elf_lowaddr, |
| NULL, 1, EM_XTENSA, 0, 0); |
| #else |
| int success = load_elf(kernel_filename, NULL, |
| translate_phys_addr, cpu, |
| &elf_entry, &elf_lowaddr, |
| NULL, 0, EM_XTENSA, 0, 0); |
| #endif |
| if (success > 0) { |
| env->pc = elf_entry; |
| } |
| } |
| } |
| |
| static void xtensa_sim_machine_init(MachineClass *mc) |
| { |
| mc->desc = "sim machine (" XTENSA_DEFAULT_CPU_MODEL ")"; |
| mc->is_default = true; |
| mc->init = xtensa_sim_init; |
| mc->max_cpus = 4; |
| mc->no_serial = 1; |
| mc->default_cpu_type = XTENSA_DEFAULT_CPU_TYPE; |
| } |
| |
| DEFINE_MACHINE("sim", xtensa_sim_machine_init) |