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>
139 lines
4 KiB
C
139 lines
4 KiB
C
/*
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* Generic PKUnity SoC machine and board descriptor
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*
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* Copyright (C) 2010-2012 Guan Xuetao
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation, or any later version.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu-common.h"
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#include "ui/console.h"
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#include "elf.h"
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#include "exec/address-spaces.h"
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#include "hw/sysbus.h"
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#include "hw/boards.h"
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#include "hw/loader.h"
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#include "hw/i386/pc.h"
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#undef DEBUG_PUV3
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#include "hw/unicore32/puv3.h"
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#define KERNEL_LOAD_ADDR 0x03000000
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#define KERNEL_MAX_SIZE 0x00800000 /* Just a guess */
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static void puv3_intc_cpu_handler(void *opaque, int irq, int level)
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{
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UniCore32CPU *cpu = opaque;
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CPUState *cs = CPU(cpu);
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assert(irq == 0);
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if (level) {
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cpu_interrupt(cs, CPU_INTERRUPT_HARD);
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} else {
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cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
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}
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}
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static void puv3_soc_init(CPUUniCore32State *env)
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{
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qemu_irq *cpu_intc, irqs[PUV3_IRQS_NR];
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DeviceState *dev;
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MemoryRegion *i8042 = g_new(MemoryRegion, 1);
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int i;
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/* Initialize interrupt controller */
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cpu_intc = qemu_allocate_irqs(puv3_intc_cpu_handler,
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uc32_env_get_cpu(env), 1);
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dev = sysbus_create_simple("puv3_intc", PUV3_INTC_BASE, *cpu_intc);
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for (i = 0; i < PUV3_IRQS_NR; i++) {
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irqs[i] = qdev_get_gpio_in(dev, i);
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}
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/* Initialize minimal necessary devices for kernel booting */
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sysbus_create_simple("puv3_pm", PUV3_PM_BASE, NULL);
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sysbus_create_simple("puv3_dma", PUV3_DMA_BASE, NULL);
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sysbus_create_simple("puv3_ost", PUV3_OST_BASE, irqs[PUV3_IRQS_OST0]);
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sysbus_create_varargs("puv3_gpio", PUV3_GPIO_BASE,
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irqs[PUV3_IRQS_GPIOLOW0], irqs[PUV3_IRQS_GPIOLOW1],
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irqs[PUV3_IRQS_GPIOLOW2], irqs[PUV3_IRQS_GPIOLOW3],
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irqs[PUV3_IRQS_GPIOLOW4], irqs[PUV3_IRQS_GPIOLOW5],
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irqs[PUV3_IRQS_GPIOLOW6], irqs[PUV3_IRQS_GPIOLOW7],
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irqs[PUV3_IRQS_GPIOHIGH], NULL);
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/* Keyboard (i8042), mouse disabled for nographic */
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i8042_mm_init(irqs[PUV3_IRQS_PS2_KBD], NULL, i8042, PUV3_REGS_OFFSET, 4);
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memory_region_add_subregion(get_system_memory(), PUV3_PS2_BASE, i8042);
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}
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static void puv3_board_init(CPUUniCore32State *env, ram_addr_t ram_size)
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{
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MemoryRegion *ram_memory = g_new(MemoryRegion, 1);
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/* SDRAM at address zero. */
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memory_region_init_ram(ram_memory, NULL, "puv3.ram", ram_size);
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vmstate_register_ram_global(ram_memory);
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memory_region_add_subregion(get_system_memory(), 0, ram_memory);
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}
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static const GraphicHwOps no_ops;
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static void puv3_load_kernel(const char *kernel_filename)
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{
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int size;
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assert(kernel_filename != NULL);
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/* only zImage format supported */
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size = load_image_targphys(kernel_filename, KERNEL_LOAD_ADDR,
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KERNEL_MAX_SIZE);
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if (size < 0) {
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hw_error("Load kernel error: '%s'\n", kernel_filename);
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}
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/* cheat curses that we have a graphic console, only under ocd console */
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graphic_console_init(NULL, &no_ops, NULL);
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}
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static void puv3_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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const char *initrd_filename = args->initrd_filename;
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CPUUniCore32State *env;
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if (initrd_filename) {
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hw_error("Please use kernel built-in initramdisk.\n");
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}
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if (!cpu_model) {
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cpu_model = "UniCore-II";
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}
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env = cpu_init(cpu_model);
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if (!env) {
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hw_error("Unable to find CPU definition\n");
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}
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puv3_soc_init(env);
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puv3_board_init(env, ram_size);
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puv3_load_kernel(kernel_filename);
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}
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static QEMUMachine puv3_machine = {
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.name = "puv3",
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.desc = "PKUnity Version-3 based on UniCore32",
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.init = puv3_init,
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.is_default = 1,
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};
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static void puv3_machine_init(void)
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{
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qemu_register_machine(&puv3_machine);
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}
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machine_init(puv3_machine_init)
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