pc: Eliminate pc_common_machine_options()
[qemu/cris-port.git] / hw / openrisc / openrisc_sim.c
blob1da0657ddf299ce5bbfc377c10e6d20bb85df171
1 /*
2 * OpenRISC simulator for use as an IIS.
4 * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
5 * Feng Gao <gf91597@gmail.com>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
21 #include "hw/hw.h"
22 #include "hw/boards.h"
23 #include "elf.h"
24 #include "hw/char/serial.h"
25 #include "net/net.h"
26 #include "hw/loader.h"
27 #include "exec/address-spaces.h"
28 #include "sysemu/sysemu.h"
29 #include "hw/sysbus.h"
30 #include "sysemu/qtest.h"
32 #define KERNEL_LOAD_ADDR 0x100
34 static void main_cpu_reset(void *opaque)
36 OpenRISCCPU *cpu = opaque;
38 cpu_reset(CPU(cpu));
41 static void openrisc_sim_net_init(MemoryRegion *address_space,
42 hwaddr base,
43 hwaddr descriptors,
44 qemu_irq irq, NICInfo *nd)
46 DeviceState *dev;
47 SysBusDevice *s;
49 dev = qdev_create(NULL, "open_eth");
50 qdev_set_nic_properties(dev, nd);
51 qdev_init_nofail(dev);
53 s = SYS_BUS_DEVICE(dev);
54 sysbus_connect_irq(s, 0, irq);
55 memory_region_add_subregion(address_space, base,
56 sysbus_mmio_get_region(s, 0));
57 memory_region_add_subregion(address_space, descriptors,
58 sysbus_mmio_get_region(s, 1));
61 static void cpu_openrisc_load_kernel(ram_addr_t ram_size,
62 const char *kernel_filename,
63 OpenRISCCPU *cpu)
65 long kernel_size;
66 uint64_t elf_entry;
67 hwaddr entry;
69 if (kernel_filename && !qtest_enabled()) {
70 kernel_size = load_elf(kernel_filename, NULL, NULL,
71 &elf_entry, NULL, NULL, 1, ELF_MACHINE, 1);
72 entry = elf_entry;
73 if (kernel_size < 0) {
74 kernel_size = load_uimage(kernel_filename,
75 &entry, NULL, NULL, NULL, NULL);
77 if (kernel_size < 0) {
78 kernel_size = load_image_targphys(kernel_filename,
79 KERNEL_LOAD_ADDR,
80 ram_size - KERNEL_LOAD_ADDR);
81 entry = KERNEL_LOAD_ADDR;
84 if (kernel_size < 0) {
85 fprintf(stderr, "QEMU: couldn't load the kernel '%s'\n",
86 kernel_filename);
87 exit(1);
89 cpu->env.pc = entry;
93 static void openrisc_sim_init(MachineState *machine)
95 ram_addr_t ram_size = machine->ram_size;
96 const char *cpu_model = machine->cpu_model;
97 const char *kernel_filename = machine->kernel_filename;
98 OpenRISCCPU *cpu = NULL;
99 MemoryRegion *ram;
100 int n;
102 if (!cpu_model) {
103 cpu_model = "or1200";
106 for (n = 0; n < smp_cpus; n++) {
107 cpu = cpu_openrisc_init(cpu_model);
108 if (cpu == NULL) {
109 fprintf(stderr, "Unable to find CPU definition!\n");
110 exit(1);
112 qemu_register_reset(main_cpu_reset, cpu);
113 main_cpu_reset(cpu);
116 ram = g_malloc(sizeof(*ram));
117 memory_region_init_ram(ram, NULL, "openrisc.ram", ram_size, &error_abort);
118 vmstate_register_ram_global(ram);
119 memory_region_add_subregion(get_system_memory(), 0, ram);
121 cpu_openrisc_pic_init(cpu);
122 cpu_openrisc_clock_init(cpu);
124 serial_mm_init(get_system_memory(), 0x90000000, 0, cpu->env.irq[2],
125 115200, serial_hds[0], DEVICE_NATIVE_ENDIAN);
127 if (nd_table[0].used) {
128 openrisc_sim_net_init(get_system_memory(), 0x92000000,
129 0x92000400, cpu->env.irq[4], nd_table);
132 cpu_openrisc_load_kernel(ram_size, kernel_filename, cpu);
135 static QEMUMachine openrisc_sim_machine = {
136 .name = "or32-sim",
137 .desc = "or32 simulation",
138 .init = openrisc_sim_init,
139 .max_cpus = 1,
140 .is_default = 1,
143 static void openrisc_sim_machine_init(void)
145 qemu_register_machine(&openrisc_sim_machine);
148 machine_init(openrisc_sim_machine_init);