c165473269
We set default boot order "cad" in every single machine definition except "pseries" and "moxiesim", even though very few boards actually care for boot order, and "cad" makes sense for even fewer. Machines that care: * pc and its variants Accept up to three letters 'a', 'b' (undocumented alias for 'a'), 'c', 'd' and 'n'. Reject all others (fatal with -boot). * nseries (n800, n810) Check whether order starts with 'n'. Silently ignored otherwise. * prep, g3beige, mac99 Extract the first character the machine understands (subset of 'a'..'f'). Silently ignored otherwise. * spapr Accept an arbitrary string (vl.c restricts it to contain only 'a'..'p', no duplicates). * sun4[mdc] Use the first character. Silently ignored otherwise. Strip characters these machines ignore from their default boot order. For all other machines, remove the unused default boot order alltogether. Note that my rename of QEMUMachine member boot_order to default_boot_order and QEMUMachineInitArgs member boot_device to boot_order has a welcome side effect: it makes every use of boot orders visible in this patch, for easy review. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/*
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* Arnewsh 5206 ColdFire system emulation.
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*
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* Copyright (c) 2007 CodeSourcery.
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*
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* This code is licensed under the GPL
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*/
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#include "hw/hw.h"
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#include "hw/m68k/mcf.h"
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#include "hw/boards.h"
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#include "hw/loader.h"
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#include "elf.h"
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#include "exec/address-spaces.h"
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#define KERNEL_LOAD_ADDR 0x10000
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#define AN5206_MBAR_ADDR 0x10000000
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#define AN5206_RAMBAR_ADDR 0x20000000
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/* Board init. */
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static void an5206_init(QEMUMachineInitArgs *args)
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{
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ram_addr_t ram_size = args->ram_size;
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const char *cpu_model = args->cpu_model;
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const char *kernel_filename = args->kernel_filename;
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M68kCPU *cpu;
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CPUM68KState *env;
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int kernel_size;
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uint64_t elf_entry;
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hwaddr entry;
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MemoryRegion *address_space_mem = get_system_memory();
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MemoryRegion *ram = g_new(MemoryRegion, 1);
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MemoryRegion *sram = g_new(MemoryRegion, 1);
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if (!cpu_model) {
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cpu_model = "m5206";
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}
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cpu = cpu_m68k_init(cpu_model);
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if (!cpu) {
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hw_error("Unable to find m68k CPU definition\n");
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}
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env = &cpu->env;
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/* Initialize CPU registers. */
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env->vbr = 0;
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/* TODO: allow changing MBAR and RAMBAR. */
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env->mbar = AN5206_MBAR_ADDR | 1;
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env->rambar0 = AN5206_RAMBAR_ADDR | 1;
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/* DRAM at address zero */
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memory_region_init_ram(ram, NULL, "an5206.ram", ram_size);
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vmstate_register_ram_global(ram);
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memory_region_add_subregion(address_space_mem, 0, ram);
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/* Internal SRAM. */
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memory_region_init_ram(sram, NULL, "an5206.sram", 512);
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vmstate_register_ram_global(sram);
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memory_region_add_subregion(address_space_mem, AN5206_RAMBAR_ADDR, sram);
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mcf5206_init(address_space_mem, AN5206_MBAR_ADDR, cpu);
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/* Load kernel. */
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if (!kernel_filename) {
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fprintf(stderr, "Kernel image must be specified\n");
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exit(1);
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}
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kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry,
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NULL, NULL, 1, ELF_MACHINE, 0);
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entry = elf_entry;
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if (kernel_size < 0) {
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kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL);
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}
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if (kernel_size < 0) {
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kernel_size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR,
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ram_size - KERNEL_LOAD_ADDR);
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entry = KERNEL_LOAD_ADDR;
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}
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if (kernel_size < 0) {
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fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
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exit(1);
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}
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env->pc = entry;
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}
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static QEMUMachine an5206_machine = {
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.name = "an5206",
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.desc = "Arnewsh 5206",
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.init = an5206_init,
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};
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static void an5206_machine_init(void)
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{
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qemu_register_machine(&an5206_machine);
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}
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machine_init(an5206_machine_init);
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