110 |
110 |
cpu_mips_update_count(env, 1, 0);
|
111 |
111 |
}
|
112 |
112 |
|
|
113 |
static void mips_qemu_writel (void *opaque, target_phys_addr_t addr,
|
|
114 |
uint32_t val)
|
|
115 |
{
|
|
116 |
if ((addr & 0xffff) == 0 && val == 42)
|
|
117 |
qemu_system_reset_request ();
|
|
118 |
else if ((addr & 0xffff) == 4 && val == 42)
|
|
119 |
qemu_system_shutdown_request ();
|
|
120 |
}
|
|
121 |
|
|
122 |
static uint32_t mips_qemu_readl (void *opaque, target_phys_addr_t addr)
|
|
123 |
{
|
|
124 |
return 0;
|
|
125 |
}
|
|
126 |
|
|
127 |
static CPUWriteMemoryFunc *mips_qemu_write[] = {
|
|
128 |
&mips_qemu_writel,
|
|
129 |
&mips_qemu_writel,
|
|
130 |
&mips_qemu_writel,
|
|
131 |
};
|
|
132 |
|
|
133 |
static CPUReadMemoryFunc *mips_qemu_read[] = {
|
|
134 |
&mips_qemu_readl,
|
|
135 |
&mips_qemu_readl,
|
|
136 |
&mips_qemu_readl,
|
|
137 |
};
|
|
138 |
|
|
139 |
static int mips_qemu_iomemtype = 0;
|
|
140 |
|
|
141 |
void load_kernel (CPUState *env, int ram_size, const char *kernel_filename,
|
|
142 |
const char *kernel_cmdline,
|
|
143 |
const char *initrd_filename)
|
|
144 |
{
|
|
145 |
int64_t entry = 0;
|
|
146 |
long kernel_size, initrd_size;
|
|
147 |
|
|
148 |
kernel_size = load_elf(kernel_filename, VIRT_TO_PHYS_ADDEND, &entry);
|
|
149 |
if (kernel_size >= 0)
|
|
150 |
env->PC = entry;
|
|
151 |
else {
|
|
152 |
kernel_size = load_image(kernel_filename,
|
|
153 |
phys_ram_base + KERNEL_LOAD_ADDR + VIRT_TO_PHYS_ADDEND);
|
|
154 |
if (kernel_size < 0) {
|
|
155 |
fprintf(stderr, "qemu: could not load kernel '%s'\n",
|
|
156 |
kernel_filename);
|
|
157 |
exit(1);
|
|
158 |
}
|
|
159 |
env->PC = KERNEL_LOAD_ADDR;
|
|
160 |
}
|
|
161 |
|
|
162 |
/* load initrd */
|
|
163 |
initrd_size = 0;
|
|
164 |
if (initrd_filename) {
|
|
165 |
initrd_size = load_image(initrd_filename,
|
|
166 |
phys_ram_base + INITRD_LOAD_ADDR + VIRT_TO_PHYS_ADDEND);
|
|
167 |
if (initrd_size == (target_ulong) -1) {
|
|
168 |
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
|
|
169 |
initrd_filename);
|
|
170 |
exit(1);
|
|
171 |
}
|
|
172 |
}
|
|
173 |
|
|
174 |
/* Store command line. */
|
|
175 |
if (initrd_size > 0) {
|
|
176 |
int ret;
|
|
177 |
ret = sprintf(phys_ram_base + (16 << 20) - 256,
|
|
178 |
"rd_start=0x%08x rd_size=%li ",
|
|
179 |
INITRD_LOAD_ADDR,
|
|
180 |
initrd_size);
|
|
181 |
strcpy (phys_ram_base + (16 << 20) - 256 + ret, kernel_cmdline);
|
|
182 |
}
|
|
183 |
else {
|
|
184 |
strcpy (phys_ram_base + (16 << 20) - 256, kernel_cmdline);
|
|
185 |
}
|
|
186 |
|
|
187 |
*(int *)(phys_ram_base + (16 << 20) - 260) = tswap32 (0x12345678);
|
|
188 |
*(int *)(phys_ram_base + (16 << 20) - 264) = tswap32 (ram_size);
|
|
189 |
}
|
|
190 |
|
|
191 |
static void main_cpu_reset(void *opaque)
|
|
192 |
{
|
|
193 |
CPUState *env = opaque;
|
|
194 |
cpu_reset(env);
|
|
195 |
|
|
196 |
if (env->kernel_filename)
|
|
197 |
load_kernel (env, env->ram_size, env->kernel_filename,
|
|
198 |
env->kernel_cmdline, env->initrd_filename);
|
|
199 |
}
|
113 |
200 |
|
114 |
201 |
void mips_r4k_init (int ram_size, int vga_ram_size, int boot_device,
|
115 |
202 |
DisplayState *ds, const char **fd_filename, int snapshot,
|
... | ... | |
117 |
204 |
const char *initrd_filename)
|
118 |
205 |
{
|
119 |
206 |
char buf[1024];
|
120 |
|
int64_t entry = 0;
|
121 |
207 |
unsigned long bios_offset;
|
122 |
208 |
int ret;
|
123 |
209 |
CPUState *env;
|
124 |
|
long kernel_size;
|
125 |
210 |
int i;
|
126 |
211 |
|
127 |
212 |
env = cpu_init();
|
128 |
213 |
register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
|
|
214 |
qemu_register_reset(main_cpu_reset, env);
|
129 |
215 |
|
130 |
216 |
/* allocate RAM */
|
131 |
217 |
cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
|
132 |
218 |
|
|
219 |
if (!mips_qemu_iomemtype) {
|
|
220 |
mips_qemu_iomemtype = cpu_register_io_memory(0, mips_qemu_read,
|
|
221 |
mips_qemu_write, NULL);
|
|
222 |
}
|
|
223 |
cpu_register_physical_memory(0x1fbf0000, 0x10000, mips_qemu_iomemtype);
|
|
224 |
|
133 |
225 |
/* Try to load a BIOS image. If this fails, we continue regardless,
|
134 |
226 |
but initialize the hardware ourselves. When a kernel gets
|
135 |
227 |
preloaded we also initialize the hardware, since the BIOS wasn't
|
... | ... | |
146 |
238 |
buf);
|
147 |
239 |
}
|
148 |
240 |
|
149 |
|
kernel_size = 0;
|
150 |
241 |
if (kernel_filename) {
|
151 |
|
kernel_size = load_elf(kernel_filename, VIRT_TO_PHYS_ADDEND, &entry);
|
152 |
|
if (kernel_size >= 0)
|
153 |
|
env->PC = entry;
|
154 |
|
else {
|
155 |
|
kernel_size = load_image(kernel_filename,
|
156 |
|
phys_ram_base + KERNEL_LOAD_ADDR + VIRT_TO_PHYS_ADDEND);
|
157 |
|
if (kernel_size < 0) {
|
158 |
|
fprintf(stderr, "qemu: could not load kernel '%s'\n",
|
159 |
|
kernel_filename);
|
160 |
|
exit(1);
|
161 |
|
}
|
162 |
|
env->PC = KERNEL_LOAD_ADDR;
|
163 |
|
}
|
164 |
|
|
165 |
|
/* load initrd */
|
166 |
|
if (initrd_filename) {
|
167 |
|
if (load_image(initrd_filename,
|
168 |
|
phys_ram_base + INITRD_LOAD_ADDR + VIRT_TO_PHYS_ADDEND)
|
169 |
|
== (target_ulong) -1) {
|
170 |
|
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
|
171 |
|
initrd_filename);
|
172 |
|
exit(1);
|
173 |
|
}
|
174 |
|
}
|
175 |
|
|
176 |
|
/* Store command line. */
|
177 |
|
strcpy (phys_ram_base + (16 << 20) - 256, kernel_cmdline);
|
178 |
|
/* FIXME: little endian support */
|
179 |
|
*(int *)(phys_ram_base + (16 << 20) - 260) = tswap32 (0x12345678);
|
180 |
|
*(int *)(phys_ram_base + (16 << 20) - 264) = tswap32 (ram_size);
|
|
242 |
load_kernel (env, ram_size, kernel_filename, kernel_cmdline,
|
|
243 |
initrd_filename);
|
|
244 |
env->ram_size = ram_size;
|
|
245 |
env->kernel_filename = kernel_filename;
|
|
246 |
env->kernel_cmdline = kernel_cmdline;
|
|
247 |
env->initrd_filename = initrd_filename;
|
181 |
248 |
}
|
182 |
249 |
|
183 |
250 |
/* Init internal devices */
|