Add access control support to qemu bridge helper
[qemu.git] / hw / xtensa_sim.c
1 /*
2 * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
3 * All rights reserved.
4 *
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.
15 *
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.
26 */
27
28 #include "sysemu.h"
29 #include "boards.h"
30 #include "loader.h"
31 #include "elf.h"
32 #include "memory.h"
33 #include "exec-memory.h"
34
35 static uint64_t translate_phys_addr(void *env, uint64_t addr)
36 {
37 return cpu_get_phys_page_debug(env, addr);
38 }
39
40 static void sim_reset(void *env)
41 {
42 cpu_reset(env);
43 }
44
45 static void sim_init(ram_addr_t ram_size,
46 const char *boot_device,
47 const char *kernel_filename, const char *kernel_cmdline,
48 const char *initrd_filename, const char *cpu_model)
49 {
50 CPUState *env = NULL;
51 MemoryRegion *ram, *rom;
52 int n;
53
54 for (n = 0; n < smp_cpus; n++) {
55 env = cpu_init(cpu_model);
56 if (!env) {
57 fprintf(stderr, "Unable to find CPU definition\n");
58 exit(1);
59 }
60 env->sregs[PRID] = n;
61 qemu_register_reset(sim_reset, env);
62 /* Need MMU initialized prior to ELF loading,
63 * so that ELF gets loaded into virtual addresses
64 */
65 sim_reset(env);
66 }
67
68 ram = g_malloc(sizeof(*ram));
69 memory_region_init_ram(ram, "xtensa.sram", ram_size);
70 vmstate_register_ram_global(ram);
71 memory_region_add_subregion(get_system_memory(), 0, ram);
72
73 rom = g_malloc(sizeof(*rom));
74 memory_region_init_ram(rom, "xtensa.rom", 0x1000);
75 vmstate_register_ram_global(rom);
76 memory_region_add_subregion(get_system_memory(), 0xfe000000, rom);
77
78 if (kernel_filename) {
79 uint64_t elf_entry;
80 uint64_t elf_lowaddr;
81 #ifdef TARGET_WORDS_BIGENDIAN
82 int success = load_elf(kernel_filename, translate_phys_addr, env,
83 &elf_entry, &elf_lowaddr, NULL, 1, ELF_MACHINE, 0);
84 #else
85 int success = load_elf(kernel_filename, translate_phys_addr, env,
86 &elf_entry, &elf_lowaddr, NULL, 0, ELF_MACHINE, 0);
87 #endif
88 if (success > 0) {
89 env->pc = elf_entry;
90 }
91 }
92 }
93
94 static void xtensa_sim_init(ram_addr_t ram_size,
95 const char *boot_device,
96 const char *kernel_filename, const char *kernel_cmdline,
97 const char *initrd_filename, const char *cpu_model)
98 {
99 if (!cpu_model) {
100 cpu_model = "dc232b";
101 }
102 sim_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
103 initrd_filename, cpu_model);
104 }
105
106 static QEMUMachine xtensa_sim_machine = {
107 .name = "sim",
108 .desc = "sim machine (dc232b)",
109 .init = xtensa_sim_init,
110 .max_cpus = 4,
111 };
112
113 static void xtensa_sim_machine_init(void)
114 {
115 qemu_register_machine(&xtensa_sim_machine);
116 }
117
118 machine_init(xtensa_sim_machine_init);