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authorPaolo Bonzini <pbonzini@redhat.com>2013-02-05 12:03:15 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2013-03-01 15:01:19 +0100
commit530182169e897c0e401b245552a4c58dc6846912 (patch)
tree8c39251d7e89855a89d925359f71639400782cd6 /hw/arm_boot.c
parente4c8b28cde12d01ada8fe869567dc5717a2dfcb7 (diff)
hw: move boards and other isolated files to hw/ARCH
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/arm_boot.c')
-rw-r--r--hw/arm_boot.c480
1 files changed, 0 insertions, 480 deletions
diff --git a/hw/arm_boot.c b/hw/arm_boot.c
deleted file mode 100644
index 43253fd34a..0000000000
--- a/hw/arm_boot.c
+++ /dev/null
@@ -1,480 +0,0 @@
-/*
- * ARM kernel loader.
- *
- * Copyright (c) 2006-2007 CodeSourcery.
- * Written by Paul Brook
- *
- * This code is licensed under the GPL.
- */
-
-#include "config.h"
-#include "hw/hw.h"
-#include "hw/arm-misc.h"
-#include "sysemu/sysemu.h"
-#include "hw/boards.h"
-#include "hw/loader.h"
-#include "elf.h"
-#include "sysemu/device_tree.h"
-#include "qemu/config-file.h"
-
-#define KERNEL_ARGS_ADDR 0x100
-#define KERNEL_LOAD_ADDR 0x00010000
-
-/* The worlds second smallest bootloader. Set r0-r2, then jump to kernel. */
-static uint32_t bootloader[] = {
- 0xe3a00000, /* mov r0, #0 */
- 0xe59f1004, /* ldr r1, [pc, #4] */
- 0xe59f2004, /* ldr r2, [pc, #4] */
- 0xe59ff004, /* ldr pc, [pc, #4] */
- 0, /* Board ID */
- 0, /* Address of kernel args. Set by integratorcp_init. */
- 0 /* Kernel entry point. Set by integratorcp_init. */
-};
-
-/* Handling for secondary CPU boot in a multicore system.
- * Unlike the uniprocessor/primary CPU boot, this is platform
- * dependent. The default code here is based on the secondary
- * CPU boot protocol used on realview/vexpress boards, with
- * some parameterisation to increase its flexibility.
- * QEMU platform models for which this code is not appropriate
- * should override write_secondary_boot and secondary_cpu_reset_hook
- * instead.
- *
- * This code enables the interrupt controllers for the secondary
- * CPUs and then puts all the secondary CPUs into a loop waiting
- * for an interprocessor interrupt and polling a configurable
- * location for the kernel secondary CPU entry point.
- */
-#define DSB_INSN 0xf57ff04f
-#define CP15_DSB_INSN 0xee070f9a /* mcr cp15, 0, r0, c7, c10, 4 */
-
-static uint32_t smpboot[] = {
- 0xe59f2028, /* ldr r2, gic_cpu_if */
- 0xe59f0028, /* ldr r0, startaddr */
- 0xe3a01001, /* mov r1, #1 */
- 0xe5821000, /* str r1, [r2] - set GICC_CTLR.Enable */
- 0xe3a010ff, /* mov r1, #0xff */
- 0xe5821004, /* str r1, [r2, 4] - set GIC_PMR.Priority to 0xff */
- DSB_INSN, /* dsb */
- 0xe320f003, /* wfi */
- 0xe5901000, /* ldr r1, [r0] */
- 0xe1110001, /* tst r1, r1 */
- 0x0afffffb, /* beq <wfi> */
- 0xe12fff11, /* bx r1 */
- 0, /* gic_cpu_if: base address of GIC CPU interface */
- 0 /* bootreg: Boot register address is held here */
-};
-
-static void default_write_secondary(ARMCPU *cpu,
- const struct arm_boot_info *info)
-{
- int n;
- smpboot[ARRAY_SIZE(smpboot) - 1] = info->smp_bootreg_addr;
- smpboot[ARRAY_SIZE(smpboot) - 2] = info->gic_cpu_if_addr;
- for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
- /* Replace DSB with the pre-v7 DSB if necessary. */
- if (!arm_feature(&cpu->env, ARM_FEATURE_V7) &&
- smpboot[n] == DSB_INSN) {
- smpboot[n] = CP15_DSB_INSN;
- }
- smpboot[n] = tswap32(smpboot[n]);
- }
- rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
- info->smp_loader_start);
-}
-
-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;
-}
-
-#define WRITE_WORD(p, value) do { \
- stl_phys_notdirty(p, value); \
- p += 4; \
-} while (0)
-
-static void set_kernel_args(const struct arm_boot_info *info)
-{
- int initrd_size = info->initrd_size;
- hwaddr base = info->loader_start;
- hwaddr p;
-
- p = base + KERNEL_ARGS_ADDR;
- /* ATAG_CORE */
- WRITE_WORD(p, 5);
- WRITE_WORD(p, 0x54410001);
- WRITE_WORD(p, 1);
- WRITE_WORD(p, 0x1000);
- WRITE_WORD(p, 0);
- /* ATAG_MEM */
- /* TODO: handle multiple chips on one ATAG list */
- WRITE_WORD(p, 4);
- WRITE_WORD(p, 0x54410002);
- WRITE_WORD(p, info->ram_size);
- WRITE_WORD(p, info->loader_start);
- if (initrd_size) {
- /* ATAG_INITRD2 */
- WRITE_WORD(p, 4);
- WRITE_WORD(p, 0x54420005);
- WRITE_WORD(p, info->initrd_start);
- WRITE_WORD(p, initrd_size);
- }
- if (info->kernel_cmdline && *info->kernel_cmdline) {
- /* ATAG_CMDLINE */
- int cmdline_size;
-
- cmdline_size = strlen(info->kernel_cmdline);
- cpu_physical_memory_write(p + 8, (void *)info->kernel_cmdline,
- cmdline_size + 1);
- cmdline_size = (cmdline_size >> 2) + 1;
- WRITE_WORD(p, cmdline_size + 2);
- WRITE_WORD(p, 0x54410009);
- p += cmdline_size * 4;
- }
- if (info->atag_board) {
- /* ATAG_BOARD */
- int atag_board_len;
- uint8_t atag_board_buf[0x1000];
-
- atag_board_len = (info->atag_board(info, atag_board_buf) + 3) & ~3;
- WRITE_WORD(p, (atag_board_len + 8) >> 2);
- WRITE_WORD(p, 0x414f4d50);
- cpu_physical_memory_write(p, atag_board_buf, atag_board_len);
- p += atag_board_len;
- }
- /* ATAG_END */
- WRITE_WORD(p, 0);
- WRITE_WORD(p, 0);
-}
-
-static void set_kernel_args_old(const struct arm_boot_info *info)
-{
- hwaddr p;
- const char *s;
- int initrd_size = info->initrd_size;
- hwaddr base = info->loader_start;
-
- /* see linux/include/asm-arm/setup.h */
- p = base + KERNEL_ARGS_ADDR;
- /* page_size */
- WRITE_WORD(p, 4096);
- /* nr_pages */
- WRITE_WORD(p, info->ram_size / 4096);
- /* ramdisk_size */
- WRITE_WORD(p, 0);
-#define FLAG_READONLY 1
-#define FLAG_RDLOAD 4
-#define FLAG_RDPROMPT 8
- /* flags */
- WRITE_WORD(p, FLAG_READONLY | FLAG_RDLOAD | FLAG_RDPROMPT);
- /* rootdev */
- WRITE_WORD(p, (31 << 8) | 0); /* /dev/mtdblock0 */
- /* video_num_cols */
- WRITE_WORD(p, 0);
- /* video_num_rows */
- WRITE_WORD(p, 0);
- /* video_x */
- WRITE_WORD(p, 0);
- /* video_y */
- WRITE_WORD(p, 0);
- /* memc_control_reg */
- WRITE_WORD(p, 0);
- /* unsigned char sounddefault */
- /* unsigned char adfsdrives */
- /* unsigned char bytes_per_char_h */
- /* unsigned char bytes_per_char_v */
- WRITE_WORD(p, 0);
- /* pages_in_bank[4] */
- WRITE_WORD(p, 0);
- WRITE_WORD(p, 0);
- WRITE_WORD(p, 0);
- WRITE_WORD(p, 0);
- /* pages_in_vram */
- WRITE_WORD(p, 0);
- /* initrd_start */
- if (initrd_size) {
- WRITE_WORD(p, info->initrd_start);
- } else {
- WRITE_WORD(p, 0);
- }
- /* initrd_size */
- WRITE_WORD(p, initrd_size);
- /* rd_start */
- WRITE_WORD(p, 0);
- /* system_rev */
- WRITE_WORD(p, 0);
- /* system_serial_low */
- WRITE_WORD(p, 0);
- /* system_serial_high */
- WRITE_WORD(p, 0);
- /* mem_fclk_21285 */
- WRITE_WORD(p, 0);
- /* zero unused fields */
- while (p < base + KERNEL_ARGS_ADDR + 256 + 1024) {
- WRITE_WORD(p, 0);
- }
- s = info->kernel_cmdline;
- if (s) {
- cpu_physical_memory_write(p, (void *)s, strlen(s) + 1);
- } else {
- WRITE_WORD(p, 0);
- }
-}
-
-static int load_dtb(hwaddr addr, const struct arm_boot_info *binfo)
-{
-#ifdef CONFIG_FDT
- 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) {
- fprintf(stderr, "Couldn't open dtb file %s\n", binfo->dtb_filename);
- return -1;
- }
-
- fdt = load_device_tree(filename, &size);
- if (!fdt) {
- fprintf(stderr, "Couldn't open dtb file %s\n", filename);
- g_free(filename);
- return -1;
- }
- 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,
- mem_reg_propsize * sizeof(uint32_t));
- if (rc < 0) {
- fprintf(stderr, "couldn't set /memory/reg\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) {
- rc = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start",
- binfo->initrd_start);
- if (rc < 0) {
- fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
- }
-
- rc = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end",
- binfo->initrd_start + binfo->initrd_size);
- if (rc < 0) {
- fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
- }
- }
-
- cpu_physical_memory_write(addr, fdt, size);
-
- return 0;
-
-#else
- fprintf(stderr, "Device tree requested, "
- "but qemu was compiled without fdt support\n");
- return -1;
-#endif
-}
-
-static void do_cpu_reset(void *opaque)
-{
- ARMCPU *cpu = opaque;
- CPUARMState *env = &cpu->env;
- const struct arm_boot_info *info = env->boot_info;
-
- cpu_reset(CPU(cpu));
- if (info) {
- if (!info->is_linux) {
- /* Jump to the entry point. */
- env->regs[15] = info->entry & 0xfffffffe;
- env->thumb = info->entry & 1;
- } else {
- if (env == first_cpu) {
- env->regs[15] = info->loader_start;
- if (!info->dtb_filename) {
- if (old_param) {
- set_kernel_args_old(info);
- } else {
- set_kernel_args(info);
- }
- }
- } else {
- info->secondary_cpu_reset_hook(cpu, info);
- }
- }
- }
-}
-
-void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info)
-{
- CPUARMState *env = &cpu->env;
- int kernel_size;
- int initrd_size;
- int n;
- int is_linux = 0;
- uint64_t elf_entry;
- hwaddr entry;
- int big_endian;
- QemuOpts *machine_opts;
-
- /* Load the kernel. */
- if (!info->kernel_filename) {
- fprintf(stderr, "Kernel image must be specified\n");
- exit(1);
- }
-
- machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (machine_opts) {
- info->dtb_filename = qemu_opt_get(machine_opts, "dtb");
- } else {
- info->dtb_filename = NULL;
- }
-
- if (!info->secondary_cpu_reset_hook) {
- info->secondary_cpu_reset_hook = default_reset_secondary;
- }
- if (!info->write_secondary_boot) {
- info->write_secondary_boot = default_write_secondary;
- }
-
- if (info->nb_cpus == 0)
- info->nb_cpus = 1;
-
-#ifdef TARGET_WORDS_BIGENDIAN
- big_endian = 1;
-#else
- big_endian = 0;
-#endif
-
- /* We want to put the initrd far enough into RAM that when the
- * kernel is uncompressed it will not clobber the initrd. However
- * on boards without much RAM we must ensure that we still leave
- * enough room for a decent sized initrd, and on boards with large
- * amounts of RAM we must avoid the initrd being so far up in RAM
- * that it is outside lowmem and inaccessible to the kernel.
- * So for boards with less than 256MB of RAM we put the initrd
- * halfway into RAM, and for boards with 256MB of RAM or more we put
- * the initrd at 128MB.
- */
- info->initrd_start = info->loader_start +
- MIN(info->ram_size / 2, 128 * 1024 * 1024);
-
- /* Assume that raw images are linux kernels, and ELF images are not. */
- kernel_size = load_elf(info->kernel_filename, NULL, NULL, &elf_entry,
- NULL, NULL, big_endian, ELF_MACHINE, 1);
- entry = elf_entry;
- if (kernel_size < 0) {
- kernel_size = load_uimage(info->kernel_filename, &entry, NULL,
- &is_linux);
- }
- if (kernel_size < 0) {
- entry = info->loader_start + KERNEL_LOAD_ADDR;
- kernel_size = load_image_targphys(info->kernel_filename, entry,
- info->ram_size - KERNEL_LOAD_ADDR);
- is_linux = 1;
- }
- if (kernel_size < 0) {
- fprintf(stderr, "qemu: could not load kernel '%s'\n",
- info->kernel_filename);
- exit(1);
- }
- info->entry = entry;
- if (is_linux) {
- if (info->initrd_filename) {
- initrd_size = load_image_targphys(info->initrd_filename,
- info->initrd_start,
- info->ram_size -
- info->initrd_start);
- if (initrd_size < 0) {
- fprintf(stderr, "qemu: could not load initrd '%s'\n",
- info->initrd_filename);
- exit(1);
- }
- } else {
- initrd_size = 0;
- }
- info->initrd_size = initrd_size;
-
- bootloader[4] = info->board_id;
-
- /* for device tree boot, we pass the DTB directly in r2. Otherwise
- * we point to the kernel args.
- */
- if (info->dtb_filename) {
- /* Place the DTB after the initrd in memory. Note that some
- * kernels will trash anything in the 4K page the initrd
- * ends in, so make sure the DTB isn't caught up in that.
- */
- hwaddr dtb_start = QEMU_ALIGN_UP(info->initrd_start + initrd_size,
- 4096);
- if (load_dtb(dtb_start, info)) {
- exit(1);
- }
- 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++) {
- bootloader[n] = tswap32(bootloader[n]);
- }
- rom_add_blob_fixed("bootloader", bootloader, sizeof(bootloader),
- info->loader_start);
- if (info->nb_cpus > 1) {
- 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, cpu);
- }
-}