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21#include "qemu/osdep.h"
22#include "qapi/error.h"
23#include "qemu-common.h"
24#include "cpu.h"
25#include "hw/hw.h"
26#include "hw/boards.h"
27#include "elf.h"
28#include "hw/char/serial.h"
29#include "net/net.h"
30#include "hw/loader.h"
31#include "exec/address-spaces.h"
32#include "sysemu/sysemu.h"
33#include "hw/sysbus.h"
34#include "sysemu/qtest.h"
35
36#define KERNEL_LOAD_ADDR 0x100
37
38static void main_cpu_reset(void *opaque)
39{
40 OpenRISCCPU *cpu = opaque;
41
42 cpu_reset(CPU(cpu));
43}
44
45static void openrisc_sim_net_init(MemoryRegion *address_space,
46 hwaddr base,
47 hwaddr descriptors,
48 qemu_irq irq, NICInfo *nd)
49{
50 DeviceState *dev;
51 SysBusDevice *s;
52
53 dev = qdev_create(NULL, "open_eth");
54 qdev_set_nic_properties(dev, nd);
55 qdev_init_nofail(dev);
56
57 s = SYS_BUS_DEVICE(dev);
58 sysbus_connect_irq(s, 0, irq);
59 memory_region_add_subregion(address_space, base,
60 sysbus_mmio_get_region(s, 0));
61 memory_region_add_subregion(address_space, descriptors,
62 sysbus_mmio_get_region(s, 1));
63}
64
65static void cpu_openrisc_load_kernel(ram_addr_t ram_size,
66 const char *kernel_filename,
67 OpenRISCCPU *cpu)
68{
69 long kernel_size;
70 uint64_t elf_entry;
71 hwaddr entry;
72
73 if (kernel_filename && !qtest_enabled()) {
74 kernel_size = load_elf(kernel_filename, NULL, NULL,
75 &elf_entry, NULL, NULL, 1, EM_OPENRISC,
76 1, 0);
77 entry = elf_entry;
78 if (kernel_size < 0) {
79 kernel_size = load_uimage(kernel_filename,
80 &entry, NULL, NULL, NULL, NULL);
81 }
82 if (kernel_size < 0) {
83 kernel_size = load_image_targphys(kernel_filename,
84 KERNEL_LOAD_ADDR,
85 ram_size - KERNEL_LOAD_ADDR);
86 entry = KERNEL_LOAD_ADDR;
87 }
88
89 if (kernel_size < 0) {
90 fprintf(stderr, "QEMU: couldn't load the kernel '%s'\n",
91 kernel_filename);
92 exit(1);
93 }
94 cpu->env.pc = entry;
95 }
96}
97
98static void openrisc_sim_init(MachineState *machine)
99{
100 ram_addr_t ram_size = machine->ram_size;
101 const char *cpu_model = machine->cpu_model;
102 const char *kernel_filename = machine->kernel_filename;
103 OpenRISCCPU *cpu = NULL;
104 MemoryRegion *ram;
105 int n;
106
107 if (!cpu_model) {
108 cpu_model = "or1200";
109 }
110
111 for (n = 0; n < smp_cpus; n++) {
112 cpu = cpu_openrisc_init(cpu_model);
113 if (cpu == NULL) {
114 fprintf(stderr, "Unable to find CPU definition!\n");
115 exit(1);
116 }
117 qemu_register_reset(main_cpu_reset, cpu);
118 main_cpu_reset(cpu);
119 }
120
121 ram = g_malloc(sizeof(*ram));
122 memory_region_init_ram(ram, NULL, "openrisc.ram", ram_size, &error_fatal);
123 vmstate_register_ram_global(ram);
124 memory_region_add_subregion(get_system_memory(), 0, ram);
125
126 cpu_openrisc_pic_init(cpu);
127 cpu_openrisc_clock_init(cpu);
128
129 serial_mm_init(get_system_memory(), 0x90000000, 0, cpu->env.irq[2],
130 115200, serial_hds[0], DEVICE_NATIVE_ENDIAN);
131
132 if (nd_table[0].used) {
133 openrisc_sim_net_init(get_system_memory(), 0x92000000,
134 0x92000400, cpu->env.irq[4], nd_table);
135 }
136
137 cpu_openrisc_load_kernel(ram_size, kernel_filename, cpu);
138}
139
140static void openrisc_sim_machine_init(MachineClass *mc)
141{
142 mc->desc = "or32 simulation";
143 mc->init = openrisc_sim_init;
144 mc->max_cpus = 1;
145 mc->is_default = 1;
146}
147
148DEFINE_MACHINE("or32-sim", openrisc_sim_machine_init)
149