Such address translation is needed when load address recorded in uImage is a virtual address. When the actual load address is requested, return untranslated address: user that needs the translated address can always apply translation function to it and those that need it untranslated don't need to do the inverse translation. Add translation function pointer and its parameter to uimage_load prototype. Update all existing users. No user-visible functional changes. Cc: qemu-stable@nongnu.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Alexander Graf <agraf@suse.de>
105 lines
2.8 KiB
C
105 lines
2.8 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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#include "sysemu/qtest.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(MachineState *machine)
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{
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ram_addr_t ram_size = machine->ram_size;
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const char *cpu_model = machine->cpu_model;
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const char *kernel_filename = machine->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, &error_abort);
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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, &error_abort);
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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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if (qtest_enabled()) {
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return;
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}
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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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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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