2 * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the Open Source and Linux Lab nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include "exec/memory.h"
33 #include "exec/address-spaces.h"
35 static uint64_t translate_phys_addr(void *env, uint64_t addr)
37 return cpu_get_phys_page_debug(env, addr);
40 static void sim_reset(void *opaque)
42 XtensaCPU *cpu = opaque;
47 static void xtensa_sim_init(QEMUMachineInitArgs *args)
49 XtensaCPU *cpu = NULL;
50 CPUXtensaState *env = NULL;
51 MemoryRegion *ram, *rom;
52 ram_addr_t ram_size = args->ram_size;
53 const char *cpu_model = args->cpu_model;
54 const char *kernel_filename = args->kernel_filename;
58 cpu_model = XTENSA_DEFAULT_CPU_MODEL;
61 for (n = 0; n < smp_cpus; n++) {
62 cpu = cpu_xtensa_init(cpu_model);
64 fprintf(stderr, "Unable to find CPU definition\n");
70 qemu_register_reset(sim_reset, cpu);
71 /* Need MMU initialized prior to ELF loading,
72 * so that ELF gets loaded into virtual addresses
77 ram = g_malloc(sizeof(*ram));
78 memory_region_init_ram(ram, "xtensa.sram", ram_size);
79 vmstate_register_ram_global(ram);
80 memory_region_add_subregion(get_system_memory(), 0, ram);
82 rom = g_malloc(sizeof(*rom));
83 memory_region_init_ram(rom, "xtensa.rom", 0x1000);
84 vmstate_register_ram_global(rom);
85 memory_region_add_subregion(get_system_memory(), 0xfe000000, rom);
87 if (kernel_filename) {
90 #ifdef TARGET_WORDS_BIGENDIAN
91 int success = load_elf(kernel_filename, translate_phys_addr, env,
92 &elf_entry, &elf_lowaddr, NULL, 1, ELF_MACHINE, 0);
94 int success = load_elf(kernel_filename, translate_phys_addr, env,
95 &elf_entry, &elf_lowaddr, NULL, 0, ELF_MACHINE, 0);
103 static QEMUMachine xtensa_sim_machine = {
105 .desc = "sim machine (" XTENSA_DEFAULT_CPU_MODEL ")",
107 .init = xtensa_sim_init,
111 static void xtensa_sim_machine_init(void)
113 qemu_register_machine(&xtensa_sim_machine);
116 machine_init(xtensa_sim_machine_init);