diff options
Diffstat (limited to 'hw/mips_malta.c')
| -rw-r--r-- | hw/mips_malta.c | 45 |
1 files changed, 26 insertions, 19 deletions
diff --git a/hw/mips_malta.c b/hw/mips_malta.c index 9d099a053d..3b9170a48a 100644 --- a/hw/mips_malta.c +++ b/hw/mips_malta.c @@ -59,6 +59,13 @@ typedef struct { static PITState *pit; +static struct _loaderparams { + int ram_size; + const char *kernel_filename; + const char *kernel_cmdline; + const char *initrd_filename; +} loaderparams; + /* Malta FPGA */ static void malta_fpga_update_display(void *opaque) { @@ -534,8 +541,8 @@ static void write_bootloader (CPUState *env, unsigned long bios_offset, int64_t stl_raw(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a1, low(ENVP_ADDR) */ stl_raw(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); /* lui a2, high(ENVP_ADDR + 8) */ stl_raw(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */ - stl_raw(p++, 0x3c070000 | (env->ram_size >> 16)); /* lui a3, high(env->ram_size) */ - stl_raw(p++, 0x34e70000 | (env->ram_size & 0xffff)); /* ori a3, a3, low(env->ram_size) */ + stl_raw(p++, 0x3c070000 | (loaderparams.ram_size >> 16)); /* lui a3, high(ram_size) */ + stl_raw(p++, 0x34e70000 | (loaderparams.ram_size & 0xffff)); /* ori a3, a3, low(ram_size) */ /* Load BAR registers as done by YAMON */ stl_raw(p++, 0x3c09b400); /* lui t1, 0xb400 */ @@ -675,48 +682,48 @@ static int64_t load_kernel (CPUState *env) long initrd_size; ram_addr_t initrd_offset; - if (load_elf(env->kernel_filename, VIRT_TO_PHYS_ADDEND, + if (load_elf(loaderparams.kernel_filename, VIRT_TO_PHYS_ADDEND, &kernel_entry, &kernel_low, &kernel_high) < 0) { fprintf(stderr, "qemu: could not load kernel '%s'\n", - env->kernel_filename); + loaderparams.kernel_filename); exit(1); } /* load initrd */ initrd_size = 0; initrd_offset = 0; - if (env->initrd_filename) { - initrd_size = get_image_size (env->initrd_filename); + if (loaderparams.initrd_filename) { + initrd_size = get_image_size (loaderparams.initrd_filename); if (initrd_size > 0) { initrd_offset = (kernel_high + ~TARGET_PAGE_MASK) & TARGET_PAGE_MASK; - if (initrd_offset + initrd_size > env->ram_size) { + if (initrd_offset + initrd_size > ram_size) { fprintf(stderr, "qemu: memory too small for initial ram disk '%s'\n", - env->initrd_filename); + loaderparams.initrd_filename); exit(1); } - initrd_size = load_image(env->initrd_filename, + initrd_size = load_image(loaderparams.initrd_filename, phys_ram_base + initrd_offset); } if (initrd_size == (target_ulong) -1) { fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", - env->initrd_filename); + loaderparams.initrd_filename); exit(1); } } /* Store command line. */ - prom_set(index++, env->kernel_filename); + prom_set(index++, loaderparams.kernel_filename); if (initrd_size > 0) prom_set(index++, "rd_start=0x" TARGET_FMT_lx " rd_size=%li %s", PHYS_TO_VIRT(initrd_offset), initrd_size, - env->kernel_cmdline); + loaderparams.kernel_cmdline); else - prom_set(index++, env->kernel_cmdline); + prom_set(index++, loaderparams.kernel_cmdline); /* Setup minimum environment variables */ prom_set(index++, "memsize"); - prom_set(index++, "%i", env->ram_size); + prom_set(index++, "%i", loaderparams.ram_size); prom_set(index++, "modetty0"); prom_set(index++, "38400n8r"); prom_set(index++, NULL); @@ -733,7 +740,7 @@ static void main_cpu_reset(void *opaque) /* The bootload does not need to be rewritten as it is located in a read only location. The kernel location and the arguments table location does not change. */ - if (env->kernel_filename) { + if (loaderparams.kernel_filename) { env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL)); load_kernel (env); } @@ -818,10 +825,10 @@ void mips_malta_init (int ram_size, int vga_ram_size, const char *boot_device, /* If a kernel image has been specified, write a small bootloader to the flash location. */ if (kernel_filename) { - env->ram_size = ram_size; - env->kernel_filename = kernel_filename; - env->kernel_cmdline = kernel_cmdline; - env->initrd_filename = initrd_filename; + loaderparams.ram_size = ram_size; + loaderparams.kernel_filename = kernel_filename; + loaderparams.kernel_cmdline = kernel_cmdline; + loaderparams.initrd_filename = initrd_filename; kernel_entry = load_kernel(env); env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL)); write_bootloader(env, bios_offset, kernel_entry); |