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>
119 lines
4 KiB
C
119 lines
4 KiB
C
/*
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* Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the Open Source and Linux Lab nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sysemu/sysemu.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/memory.h"
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#include "exec/address-spaces.h"
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static uint64_t translate_phys_addr(void *opaque, uint64_t addr)
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{
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XtensaCPU *cpu = opaque;
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return cpu_get_phys_page_debug(CPU(cpu), addr);
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}
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static void sim_reset(void *opaque)
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{
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XtensaCPU *cpu = opaque;
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cpu_reset(CPU(cpu));
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}
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static void xtensa_sim_init(QEMUMachineInitArgs *args)
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{
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XtensaCPU *cpu = NULL;
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CPUXtensaState *env = NULL;
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MemoryRegion *ram, *rom;
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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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int n;
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if (!cpu_model) {
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cpu_model = XTENSA_DEFAULT_CPU_MODEL;
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}
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for (n = 0; n < smp_cpus; n++) {
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cpu = cpu_xtensa_init(cpu_model);
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if (cpu == NULL) {
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fprintf(stderr, "Unable to find CPU definition\n");
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exit(1);
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}
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env = &cpu->env;
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env->sregs[PRID] = n;
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qemu_register_reset(sim_reset, cpu);
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/* Need MMU initialized prior to ELF loading,
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* so that ELF gets loaded into virtual addresses
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*/
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sim_reset(cpu);
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}
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ram = g_malloc(sizeof(*ram));
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memory_region_init_ram(ram, NULL, "xtensa.sram", ram_size);
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vmstate_register_ram_global(ram);
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memory_region_add_subregion(get_system_memory(), 0, ram);
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rom = g_malloc(sizeof(*rom));
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memory_region_init_ram(rom, NULL, "xtensa.rom", 0x1000);
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vmstate_register_ram_global(rom);
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memory_region_add_subregion(get_system_memory(), 0xfe000000, rom);
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if (kernel_filename) {
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uint64_t elf_entry;
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uint64_t elf_lowaddr;
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#ifdef TARGET_WORDS_BIGENDIAN
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int success = load_elf(kernel_filename, translate_phys_addr, cpu,
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&elf_entry, &elf_lowaddr, NULL, 1, ELF_MACHINE, 0);
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#else
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int success = load_elf(kernel_filename, translate_phys_addr, cpu,
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&elf_entry, &elf_lowaddr, NULL, 0, ELF_MACHINE, 0);
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#endif
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if (success > 0) {
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env->pc = elf_entry;
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}
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}
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}
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static QEMUMachine xtensa_sim_machine = {
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.name = "sim",
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.desc = "sim machine (" XTENSA_DEFAULT_CPU_MODEL ")",
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.is_default = true,
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.init = xtensa_sim_init,
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.max_cpus = 4,
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};
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static void xtensa_sim_machine_init(void)
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{
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qemu_register_machine(&xtensa_sim_machine);
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}
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machine_init(xtensa_sim_machine_init);
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