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Diffstat (limited to 'hw/arm_boot.c')
-rw-r--r--hw/arm_boot.c118
1 files changed, 63 insertions, 55 deletions
diff --git a/hw/arm_boot.c b/hw/arm_boot.c
index 8335e69a7f..5990961781 100644
--- a/hw/arm_boot.c
+++ b/hw/arm_boot.c
@@ -47,21 +47,18 @@ static void main_cpu_reset(void *opaque)
CPUState *env = opaque;
cpu_reset(env);
- if (env->kernel_filename)
- arm_load_kernel(env, env->ram_size, env->kernel_filename,
- env->kernel_cmdline, env->initrd_filename,
- env->board_id, env->loader_start);
+ if (env->boot_info)
+ arm_load_kernel(env, env->boot_info);
/* TODO: Reset secondary CPUs. */
}
-static void set_kernel_args(uint32_t ram_size, int initrd_size,
- const char *kernel_cmdline,
- target_phys_addr_t loader_start)
+static void set_kernel_args(struct arm_boot_info *info,
+ int initrd_size, void *base)
{
uint32_t *p;
- p = (uint32_t *)(phys_ram_base + KERNEL_ARGS_ADDR);
+ p = (uint32_t *)(base + KERNEL_ARGS_ADDR);
/* ATAG_CORE */
stl_raw(p++, 5);
stl_raw(p++, 0x54410001);
@@ -69,46 +66,55 @@ static void set_kernel_args(uint32_t ram_size, int initrd_size,
stl_raw(p++, 0x1000);
stl_raw(p++, 0);
/* ATAG_MEM */
+ /* TODO: handle multiple chips on one ATAG list */
stl_raw(p++, 4);
stl_raw(p++, 0x54410002);
- stl_raw(p++, ram_size);
- stl_raw(p++, loader_start);
+ stl_raw(p++, info->ram_size);
+ stl_raw(p++, info->loader_start);
if (initrd_size) {
/* ATAG_INITRD2 */
stl_raw(p++, 4);
stl_raw(p++, 0x54420005);
- stl_raw(p++, loader_start + INITRD_LOAD_ADDR);
+ stl_raw(p++, info->loader_start + INITRD_LOAD_ADDR);
stl_raw(p++, initrd_size);
}
- if (kernel_cmdline && *kernel_cmdline) {
+ if (info->kernel_cmdline && *info->kernel_cmdline) {
/* ATAG_CMDLINE */
int cmdline_size;
- cmdline_size = strlen(kernel_cmdline);
- memcpy (p + 2, kernel_cmdline, cmdline_size + 1);
+ cmdline_size = strlen(info->kernel_cmdline);
+ memcpy(p + 2, info->kernel_cmdline, cmdline_size + 1);
cmdline_size = (cmdline_size >> 2) + 1;
stl_raw(p++, cmdline_size + 2);
stl_raw(p++, 0x54410009);
p += cmdline_size;
}
+ if (info->atag_board) {
+ /* ATAG_BOARD */
+ int atag_board_len;
+
+ atag_board_len = (info->atag_board(info, p + 2) + 3) >> 2;
+ stl_raw(p++, 2 + atag_board_len);
+ stl_raw(p++, 0x414f4d50);
+ p += atag_board_len;
+ }
/* ATAG_END */
stl_raw(p++, 0);
stl_raw(p++, 0);
}
-static void set_kernel_args_old(uint32_t ram_size, int initrd_size,
- const char *kernel_cmdline,
- target_phys_addr_t loader_start)
+static void set_kernel_args_old(struct arm_boot_info *info,
+ int initrd_size, void *base)
{
uint32_t *p;
unsigned char *s;
/* see linux/include/asm-arm/setup.h */
- p = (uint32_t *)(phys_ram_base + KERNEL_ARGS_ADDR);
+ p = (uint32_t *)(base + KERNEL_ARGS_ADDR);
/* page_size */
stl_raw(p++, 4096);
/* nr_pages */
- stl_raw(p++, ram_size / 4096);
+ stl_raw(p++, info->ram_size / 4096);
/* ramdisk_size */
stl_raw(p++, 0);
#define FLAG_READONLY 1
@@ -142,7 +148,7 @@ static void set_kernel_args_old(uint32_t ram_size, int initrd_size,
stl_raw(p++, 0);
/* initrd_start */
if (initrd_size)
- stl_raw(p++, loader_start + INITRD_LOAD_ADDR);
+ stl_raw(p++, info->loader_start + INITRD_LOAD_ADDR);
else
stl_raw(p++, 0);
/* initrd_size */
@@ -159,17 +165,15 @@ static void set_kernel_args_old(uint32_t ram_size, int initrd_size,
stl_raw(p++, 0);
/* zero unused fields */
memset(p, 0, 256 + 1024 -
- (p - ((uint32_t *)(phys_ram_base + KERNEL_ARGS_ADDR))));
- s = phys_ram_base + KERNEL_ARGS_ADDR + 256 + 1024;
- if (kernel_cmdline)
- strcpy (s, kernel_cmdline);
+ (p - ((uint32_t *)(base + KERNEL_ARGS_ADDR))));
+ s = base + KERNEL_ARGS_ADDR + 256 + 1024;
+ if (info->kernel_cmdline)
+ strcpy (s, info->kernel_cmdline);
else
stb_raw(s, 0);
}
-void arm_load_kernel(CPUState *env, int ram_size, const char *kernel_filename,
- const char *kernel_cmdline, const char *initrd_filename,
- int board_id, target_phys_addr_t loader_start)
+void arm_load_kernel(CPUState *env, struct arm_boot_info *info)
{
int kernel_size;
int initrd_size;
@@ -177,36 +181,41 @@ void arm_load_kernel(CPUState *env, int ram_size, const char *kernel_filename,
int is_linux = 0;
uint64_t elf_entry;
target_ulong entry;
+ uint32_t pd;
+ void *loader_phys;
/* Load the kernel. */
- if (!kernel_filename) {
+ if (!info->kernel_filename) {
fprintf(stderr, "Kernel image must be specified\n");
exit(1);
}
- if (!env->kernel_filename) {
- env->ram_size = ram_size;
- env->kernel_filename = kernel_filename;
- env->kernel_cmdline = kernel_cmdline;
- env->initrd_filename = initrd_filename;
- env->board_id = board_id;
- env->loader_start = loader_start;
+ if (!env->boot_info) {
+ if (info->nb_cpus == 0)
+ info->nb_cpus = 1;
+ env->boot_info = info;
qemu_register_reset(main_cpu_reset, env);
}
+
+ pd = cpu_get_physical_page_desc(info->loader_start);
+ loader_phys = phys_ram_base + (pd & TARGET_PAGE_MASK) +
+ (info->loader_start & ~TARGET_PAGE_MASK);
+
/* Assume that raw images are linux kernels, and ELF images are not. */
- kernel_size = load_elf(kernel_filename, 0, &elf_entry, NULL, NULL);
+ kernel_size = load_elf(info->kernel_filename, 0, &elf_entry, NULL, NULL);
entry = elf_entry;
if (kernel_size < 0) {
- kernel_size = load_uboot(kernel_filename, &entry, &is_linux);
+ kernel_size = load_uboot(info->kernel_filename, &entry, &is_linux);
}
if (kernel_size < 0) {
- kernel_size = load_image(kernel_filename,
- phys_ram_base + KERNEL_LOAD_ADDR);
- entry = loader_start + KERNEL_LOAD_ADDR;
+ kernel_size = load_image(info->kernel_filename,
+ loader_phys + KERNEL_LOAD_ADDR);
+ entry = info->loader_start + KERNEL_LOAD_ADDR;
is_linux = 1;
}
if (kernel_size < 0) {
- fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
+ fprintf(stderr, "qemu: could not load kernel '%s'\n",
+ info->kernel_filename);
exit(1);
}
if (!is_linux) {
@@ -214,30 +223,29 @@ void arm_load_kernel(CPUState *env, int ram_size, const char *kernel_filename,
env->regs[15] = entry & 0xfffffffe;
env->thumb = entry & 1;
} else {
- if (initrd_filename) {
- initrd_size = load_image(initrd_filename,
- phys_ram_base + INITRD_LOAD_ADDR);
+ if (info->initrd_filename) {
+ initrd_size = load_image(info->initrd_filename,
+ loader_phys + INITRD_LOAD_ADDR);
if (initrd_size < 0) {
fprintf(stderr, "qemu: could not load initrd '%s'\n",
- initrd_filename);
+ info->initrd_filename);
exit(1);
}
} else {
initrd_size = 0;
}
- bootloader[1] |= board_id & 0xff;
- bootloader[2] |= (board_id >> 8) & 0xff;
- bootloader[5] = loader_start + KERNEL_ARGS_ADDR;
+ bootloader[1] |= info->board_id & 0xff;
+ bootloader[2] |= (info->board_id >> 8) & 0xff;
+ bootloader[5] = info->loader_start + KERNEL_ARGS_ADDR;
bootloader[6] = entry;
for (n = 0; n < sizeof(bootloader) / 4; n++)
- stl_raw(phys_ram_base + (n * 4), bootloader[n]);
- for (n = 0; n < sizeof(smpboot) / 4; n++)
- stl_raw(phys_ram_base + ram_size + (n * 4), smpboot[n]);
+ stl_raw(loader_phys + (n * 4), bootloader[n]);
+ if (info->nb_cpus > 1)
+ for (n = 0; n < sizeof(smpboot) / 4; n++)
+ stl_raw(loader_phys + info->ram_size + (n * 4), smpboot[n]);
if (old_param)
- set_kernel_args_old(ram_size, initrd_size,
- kernel_cmdline, loader_start);
+ set_kernel_args_old(info, initrd_size, loader_phys);
else
- set_kernel_args(ram_size, initrd_size,
- kernel_cmdline, loader_start);
+ set_kernel_args(info, initrd_size, loader_phys);
}
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-02 07:09:13 +0000