diff options
Diffstat (limited to 'hw/arm_boot.c')
| -rw-r--r-- | hw/arm_boot.c | 77 |
1 files changed, 60 insertions, 17 deletions
diff --git a/hw/arm_boot.c b/hw/arm_boot.c index 7447f5c169..a6e9143662 100644 --- a/hw/arm_boot.c +++ b/hw/arm_boot.c @@ -59,7 +59,7 @@ static uint32_t smpboot[] = { 0 /* bootreg: Boot register address is held here */ }; -static void default_write_secondary(CPUARMState *env, +static void default_write_secondary(ARMCPU *cpu, const struct arm_boot_info *info) { int n; @@ -72,9 +72,11 @@ static void default_write_secondary(CPUARMState *env, info->smp_loader_start); } -static void default_reset_secondary(CPUARMState *env, +static void default_reset_secondary(ARMCPU *cpu, const struct arm_boot_info *info) { + CPUARMState *env = &cpu->env; + stl_phys_notdirty(info->smp_bootreg_addr, 0); env->regs[15] = info->smp_loader_start; } @@ -214,11 +216,12 @@ static void set_kernel_args_old(const struct arm_boot_info *info) static int load_dtb(target_phys_addr_t addr, const struct arm_boot_info *binfo) { #ifdef CONFIG_FDT - uint32_t mem_reg_property[] = { cpu_to_be32(binfo->loader_start), - cpu_to_be32(binfo->ram_size) }; + uint32_t *mem_reg_property; + uint32_t mem_reg_propsize; void *fdt = NULL; char *filename; int size, rc; + uint32_t acells, scells, hival; filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, binfo->dtb_filename); if (!filename) { @@ -234,16 +237,46 @@ static int load_dtb(target_phys_addr_t addr, const struct arm_boot_info *binfo) } g_free(filename); + acells = qemu_devtree_getprop_cell(fdt, "/", "#address-cells"); + scells = qemu_devtree_getprop_cell(fdt, "/", "#size-cells"); + if (acells == 0 || scells == 0) { + fprintf(stderr, "dtb file invalid (#address-cells or #size-cells 0)\n"); + return -1; + } + + mem_reg_propsize = acells + scells; + mem_reg_property = g_new0(uint32_t, mem_reg_propsize); + mem_reg_property[acells - 1] = cpu_to_be32(binfo->loader_start); + hival = cpu_to_be32(binfo->loader_start >> 32); + if (acells > 1) { + mem_reg_property[acells - 2] = hival; + } else if (hival != 0) { + fprintf(stderr, "qemu: dtb file not compatible with " + "RAM start address > 4GB\n"); + exit(1); + } + mem_reg_property[acells + scells - 1] = cpu_to_be32(binfo->ram_size); + hival = cpu_to_be32(binfo->ram_size >> 32); + if (scells > 1) { + mem_reg_property[acells + scells - 2] = hival; + } else if (hival != 0) { + fprintf(stderr, "qemu: dtb file not compatible with " + "RAM size > 4GB\n"); + exit(1); + } + rc = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property, - sizeof(mem_reg_property)); + mem_reg_propsize * sizeof(uint32_t)); if (rc < 0) { fprintf(stderr, "couldn't set /memory/reg\n"); } - rc = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", - binfo->kernel_cmdline); - if (rc < 0) { - fprintf(stderr, "couldn't set /chosen/bootargs\n"); + if (binfo->kernel_cmdline && *binfo->kernel_cmdline) { + rc = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", + binfo->kernel_cmdline); + if (rc < 0) { + fprintf(stderr, "couldn't set /chosen/bootargs\n"); + } } if (binfo->initrd_size) { @@ -274,10 +307,11 @@ static int load_dtb(target_phys_addr_t addr, const struct arm_boot_info *binfo) static void do_cpu_reset(void *opaque) { - CPUARMState *env = opaque; + ARMCPU *cpu = opaque; + CPUARMState *env = &cpu->env; const struct arm_boot_info *info = env->boot_info; - cpu_state_reset(env); + cpu_reset(CPU(cpu)); if (info) { if (!info->is_linux) { /* Jump to the entry point. */ @@ -294,14 +328,15 @@ static void do_cpu_reset(void *opaque) } } } else { - info->secondary_cpu_reset_hook(env, info); + info->secondary_cpu_reset_hook(cpu, info); } } } } -void arm_load_kernel(CPUARMState *env, struct arm_boot_info *info) +void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info) { + CPUARMState *env = &cpu->env; int kernel_size; int initrd_size; int n; @@ -351,7 +386,7 @@ void arm_load_kernel(CPUARMState *env, struct arm_boot_info *info) if (kernel_size < 0) { entry = info->loader_start + KERNEL_LOAD_ADDR; kernel_size = load_image_targphys(info->kernel_filename, entry, - ram_size - KERNEL_LOAD_ADDR); + info->ram_size - KERNEL_LOAD_ADDR); is_linux = 1; } if (kernel_size < 0) { @@ -365,7 +400,8 @@ void arm_load_kernel(CPUARMState *env, struct arm_boot_info *info) initrd_size = load_image_targphys(info->initrd_filename, info->loader_start + INITRD_LOAD_ADDR, - ram_size - INITRD_LOAD_ADDR); + info->ram_size + - INITRD_LOAD_ADDR); if (initrd_size < 0) { fprintf(stderr, "qemu: could not load initrd '%s'\n", info->initrd_filename); @@ -392,6 +428,12 @@ void arm_load_kernel(CPUARMState *env, struct arm_boot_info *info) bootloader[5] = dtb_start; } else { bootloader[5] = info->loader_start + KERNEL_ARGS_ADDR; + if (info->ram_size >= (1ULL << 32)) { + fprintf(stderr, "qemu: RAM size must be less than 4GB to boot" + " Linux kernel using ATAGS (try passing a device tree" + " using -dtb)\n"); + exit(1); + } } bootloader[6] = entry; for (n = 0; n < sizeof(bootloader) / 4; n++) { @@ -400,13 +442,14 @@ void arm_load_kernel(CPUARMState *env, struct arm_boot_info *info) rom_add_blob_fixed("bootloader", bootloader, sizeof(bootloader), info->loader_start); if (info->nb_cpus > 1) { - info->write_secondary_boot(env, info); + info->write_secondary_boot(cpu, info); } } info->is_linux = is_linux; for (; env; env = env->next_cpu) { + cpu = arm_env_get_cpu(env); env->boot_info = info; - qemu_register_reset(do_cpu_reset, env); + qemu_register_reset(do_cpu_reset, cpu); } } |