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Annotation of qemu/hw/dummy_m68k.c, revision 1.1.1.4

1.1       root        1: /*
                      2:  * Dummy board with just RAM and CPU for use as an ISS.
                      3:  *
                      4:  * Copyright (c) 2007 CodeSourcery.
                      5:  *
                      6:  * This code is licenced under the GPL
                      7:  */
                      8: 
                      9: #include "hw.h"
                     10: #include "sysemu.h"
                     11: #include "boards.h"
1.1.1.4 ! root       12: #include "loader.h"
        !            13: #include "elf.h"
1.1       root       14: 
                     15: #define KERNEL_LOAD_ADDR 0x10000
                     16: 
                     17: /* Board init.  */
                     18: 
1.1.1.3   root       19: static void dummy_m68k_init(ram_addr_t ram_size,
1.1.1.2   root       20:                      const char *boot_device,
1.1       root       21:                      const char *kernel_filename, const char *kernel_cmdline,
                     22:                      const char *initrd_filename, const char *cpu_model)
                     23: {
                     24:     CPUState *env;
                     25:     int kernel_size;
                     26:     uint64_t elf_entry;
1.1.1.4 ! root       27:     target_phys_addr_t entry;
1.1       root       28: 
                     29:     if (!cpu_model)
                     30:         cpu_model = "cfv4e";
                     31:     env = cpu_init(cpu_model);
                     32:     if (!env) {
                     33:         fprintf(stderr, "Unable to find m68k CPU definition\n");
                     34:         exit(1);
                     35:     }
                     36: 
                     37:     /* Initialize CPU registers.  */
                     38:     env->vbr = 0;
                     39: 
                     40:     /* RAM at address zero */
                     41:     cpu_register_physical_memory(0, ram_size,
                     42:         qemu_ram_alloc(ram_size) | IO_MEM_RAM);
                     43: 
                     44:     /* Load kernel.  */
                     45:     if (kernel_filename) {
1.1.1.4 ! root       46:         kernel_size = load_elf(kernel_filename, 0, &elf_entry, NULL, NULL,
        !            47:                                1, ELF_MACHINE, 0);
1.1       root       48:         entry = elf_entry;
                     49:         if (kernel_size < 0) {
1.1.1.2   root       50:             kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL);
1.1       root       51:         }
                     52:         if (kernel_size < 0) {
1.1.1.3   root       53:             kernel_size = load_image_targphys(kernel_filename,
                     54:                                               KERNEL_LOAD_ADDR,
                     55:                                               ram_size - KERNEL_LOAD_ADDR);
1.1       root       56:             entry = KERNEL_LOAD_ADDR;
                     57:         }
                     58:         if (kernel_size < 0) {
                     59:             fprintf(stderr, "qemu: could not load kernel '%s'\n",
                     60:                     kernel_filename);
                     61:             exit(1);
                     62:         }
                     63:     } else {
                     64:         entry = 0;
                     65:     }
                     66:     env->pc = entry;
                     67: }
                     68: 
1.1.1.3   root       69: static QEMUMachine dummy_m68k_machine = {
1.1.1.2   root       70:     .name = "dummy",
                     71:     .desc = "Dummy board",
                     72:     .init = dummy_m68k_init,
1.1       root       73: };
1.1.1.3   root       74: 
                     75: static void dummy_m68k_machine_init(void)
                     76: {
                     77:     qemu_register_machine(&dummy_m68k_machine);
                     78: }
                     79: 
                     80: machine_init(dummy_m68k_machine_init);

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