mirror of
https://github.com/AsahiLinux/u-boot
synced 2025-02-18 06:58:54 +00:00
x86: zboot: Add an option to dump the setup information
There is a lot of information in the setup block and it is quite hard to decode manually. Add a 'zboot dump' command to decode it into a human-readable format. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass
Bin Meng
parent
f82cd7b725
commit
631c2b9fc4
2 changed files with 199 additions and 1 deletions
|
|
@ -8,6 +8,7 @@
|
|||
#define E820_ACPI 3
|
||||
#define E820_NVS 4
|
||||
#define E820_UNUSABLE 5
|
||||
#define E820_COUNT 6 /* Number of types */
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
#include <linux/types.h>
|
||||
|
|
|
|||
|
|
@ -73,6 +73,8 @@ enum {
|
|||
ZBOOT_STATE_INFO = BIT(3),
|
||||
ZBOOT_STATE_GO = BIT(4),
|
||||
|
||||
/* This one doesn't execute automatically, so stop the count before 5 */
|
||||
ZBOOT_STATE_DUMP = BIT(5),
|
||||
ZBOOT_STATE_COUNT = 5,
|
||||
};
|
||||
|
||||
|
|
@ -458,6 +460,199 @@ static int do_zboot_go(struct cmd_tbl *cmdtp, int flag, int argc,
|
|||
return CMD_RET_FAILURE;
|
||||
}
|
||||
|
||||
static void print_num(const char *name, ulong value)
|
||||
{
|
||||
printf("%-20s: %lx\n", name, value);
|
||||
}
|
||||
|
||||
static void print_num64(const char *name, u64 value)
|
||||
{
|
||||
printf("%-20s: %llx\n", name, value);
|
||||
}
|
||||
|
||||
static const char *const e820_type_name[E820_COUNT] = {
|
||||
[E820_RAM] = "RAM",
|
||||
[E820_RESERVED] = "Reserved",
|
||||
[E820_ACPI] = "ACPI",
|
||||
[E820_NVS] = "ACPI NVS",
|
||||
[E820_UNUSABLE] = "Unusable",
|
||||
};
|
||||
|
||||
static const char *const bootloader_id[] = {
|
||||
"LILO",
|
||||
"Loadlin",
|
||||
"bootsect-loader",
|
||||
"Syslinux",
|
||||
"Etherboot/gPXE/iPXE",
|
||||
"ELILO",
|
||||
"undefined",
|
||||
"GRUB",
|
||||
"U-Boot",
|
||||
"Xen",
|
||||
"Gujin",
|
||||
"Qemu",
|
||||
"Arcturus Networks uCbootloader",
|
||||
"kexec-tools",
|
||||
"Extended",
|
||||
"Special",
|
||||
"Reserved",
|
||||
"Minimal Linux Bootloader",
|
||||
"OVMF UEFI virtualization stack",
|
||||
};
|
||||
|
||||
struct flag_info {
|
||||
uint bit;
|
||||
const char *name;
|
||||
};
|
||||
|
||||
static struct flag_info load_flags[] = {
|
||||
{ LOADED_HIGH, "loaded-high" },
|
||||
{ QUIET_FLAG, "quiet" },
|
||||
{ KEEP_SEGMENTS, "keep-segments" },
|
||||
{ CAN_USE_HEAP, "can-use-heap" },
|
||||
};
|
||||
|
||||
static struct flag_info xload_flags[] = {
|
||||
{ XLF_KERNEL_64, "64-bit-entry" },
|
||||
{ XLF_CAN_BE_LOADED_ABOVE_4G, "can-load-above-4gb" },
|
||||
{ XLF_EFI_HANDOVER_32, "32-efi-handoff" },
|
||||
{ XLF_EFI_HANDOVER_64, "64-efi-handoff" },
|
||||
{ XLF_EFI_KEXEC, "kexec-efi-runtime" },
|
||||
};
|
||||
|
||||
static void print_flags(struct flag_info *flags, int count, uint value)
|
||||
{
|
||||
int i;
|
||||
|
||||
printf("%-20s:", "");
|
||||
for (i = 0; i < count; i++) {
|
||||
uint mask = flags[i].bit;
|
||||
|
||||
if (value & mask)
|
||||
printf(" %s", flags[i].name);
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
static void show_loader(struct setup_header *hdr)
|
||||
{
|
||||
bool version_valid = false;
|
||||
int type, version;
|
||||
const char *name;
|
||||
|
||||
type = hdr->type_of_loader >> 4;
|
||||
version = hdr->type_of_loader & 0xf;
|
||||
if (type == 0xe)
|
||||
type = 0x10 + hdr->ext_loader_type;
|
||||
version |= hdr->ext_loader_ver << 4;
|
||||
if (!hdr->type_of_loader) {
|
||||
name = "pre-2.00 bootloader";
|
||||
} else if (hdr->type_of_loader == 0xff) {
|
||||
name = "unknown";
|
||||
} else if (type < ARRAY_SIZE(bootloader_id)) {
|
||||
name = bootloader_id[type];
|
||||
version_valid = true;
|
||||
} else {
|
||||
name = "undefined";
|
||||
}
|
||||
printf("%20s %s", "", name);
|
||||
if (version_valid)
|
||||
printf(", version %x", version);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
int do_zboot_dump(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
|
||||
{
|
||||
struct boot_params *base_ptr = state.base_ptr;
|
||||
struct setup_header *hdr;
|
||||
const char *version;
|
||||
int i;
|
||||
|
||||
if (argc > 1)
|
||||
base_ptr = (void *)simple_strtoul(argv[1], NULL, 16);
|
||||
if (!base_ptr) {
|
||||
printf("No zboot setup_base\n");
|
||||
return CMD_RET_FAILURE;
|
||||
}
|
||||
printf("Setup located at %p:\n\n", base_ptr);
|
||||
print_num64("ACPI RSDP addr", base_ptr->acpi_rsdp_addr);
|
||||
|
||||
printf("E820: %d entries\n", base_ptr->e820_entries);
|
||||
if (base_ptr->e820_entries) {
|
||||
printf("%18s %16s %s\n", "Addr", "Size", "Type");
|
||||
for (i = 0; i < base_ptr->e820_entries; i++) {
|
||||
struct e820_entry *entry = &base_ptr->e820_map[i];
|
||||
|
||||
printf("%12llx %10llx %s\n", entry->addr, entry->size,
|
||||
entry->type < E820_COUNT ?
|
||||
e820_type_name[entry->type] :
|
||||
simple_itoa(entry->type));
|
||||
}
|
||||
}
|
||||
|
||||
hdr = &base_ptr->hdr;
|
||||
print_num("Setup sectors", hdr->setup_sects);
|
||||
print_num("Root flags", hdr->root_flags);
|
||||
print_num("Sys size", hdr->syssize);
|
||||
print_num("RAM size", hdr->ram_size);
|
||||
print_num("Video mode", hdr->vid_mode);
|
||||
print_num("Root dev", hdr->root_dev);
|
||||
print_num("Boot flag", hdr->boot_flag);
|
||||
print_num("Jump", hdr->jump);
|
||||
print_num("Header", hdr->header);
|
||||
if (hdr->header == KERNEL_V2_MAGIC)
|
||||
printf("%-20s %s\n", "", "Kernel V2");
|
||||
else
|
||||
printf("%-20s %s\n", "", "Ancient kernel, using version 100");
|
||||
print_num("Version", hdr->version);
|
||||
print_num("Real mode switch", hdr->realmode_swtch);
|
||||
print_num("Start sys", hdr->start_sys);
|
||||
print_num("Kernel version", hdr->kernel_version);
|
||||
version = get_kernel_version(base_ptr, (void *)state.bzimage_addr);
|
||||
if (version)
|
||||
printf(" @%p: %s\n", version, version);
|
||||
print_num("Type of loader", hdr->type_of_loader);
|
||||
show_loader(hdr);
|
||||
print_num("Load flags", hdr->loadflags);
|
||||
print_flags(load_flags, ARRAY_SIZE(load_flags), hdr->loadflags);
|
||||
print_num("Setup move size", hdr->setup_move_size);
|
||||
print_num("Code32 start", hdr->code32_start);
|
||||
print_num("Ramdisk image", hdr->ramdisk_image);
|
||||
print_num("Ramdisk size", hdr->ramdisk_size);
|
||||
print_num("Bootsect kludge", hdr->bootsect_kludge);
|
||||
print_num("Heap end ptr", hdr->heap_end_ptr);
|
||||
print_num("Ext loader ver", hdr->ext_loader_ver);
|
||||
print_num("Ext loader type", hdr->ext_loader_type);
|
||||
print_num("Command line ptr", hdr->cmd_line_ptr);
|
||||
if (hdr->cmd_line_ptr) {
|
||||
printf(" ");
|
||||
/* Use puts() to avoid limits from CONFIG_SYS_PBSIZE */
|
||||
puts((char *)hdr->cmd_line_ptr);
|
||||
printf("\n");
|
||||
}
|
||||
print_num("Initrd addr max", hdr->initrd_addr_max);
|
||||
print_num("Kernel alignment", hdr->kernel_alignment);
|
||||
print_num("Relocatable kernel", hdr->relocatable_kernel);
|
||||
print_num("Min alignment", hdr->min_alignment);
|
||||
if (hdr->min_alignment)
|
||||
printf("%-20s: %x\n", "", 1 << hdr->min_alignment);
|
||||
print_num("Xload flags", hdr->xloadflags);
|
||||
print_flags(xload_flags, ARRAY_SIZE(xload_flags), hdr->xloadflags);
|
||||
print_num("Cmdline size", hdr->cmdline_size);
|
||||
print_num("Hardware subarch", hdr->hardware_subarch);
|
||||
print_num64("HW subarch data", hdr->hardware_subarch_data);
|
||||
print_num("Payload offset", hdr->payload_offset);
|
||||
print_num("Payload length", hdr->payload_length);
|
||||
print_num64("Setup data", hdr->setup_data);
|
||||
print_num64("Pref address", hdr->pref_address);
|
||||
print_num("Init size", hdr->init_size);
|
||||
print_num("Handover offset", hdr->handover_offset);
|
||||
if (get_boot_protocol(hdr, false) >= 0x215)
|
||||
print_num("Kernel info offset", hdr->kernel_info_offset);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Note: This defines the complete_zboot() function */
|
||||
U_BOOT_SUBCMDS(zboot,
|
||||
U_BOOT_CMD_MKENT(start, 7, 1, do_zboot_start, "", ""),
|
||||
|
|
@ -465,6 +660,7 @@ U_BOOT_SUBCMDS(zboot,
|
|||
U_BOOT_CMD_MKENT(setup, 1, 1, do_zboot_setup, "", ""),
|
||||
U_BOOT_CMD_MKENT(info, 1, 1, do_zboot_info, "", ""),
|
||||
U_BOOT_CMD_MKENT(go, 1, 1, do_zboot_go, "", ""),
|
||||
U_BOOT_CMD_MKENT(dump, 2, 1, do_zboot_dump, "", ""),
|
||||
)
|
||||
|
||||
int do_zboot_states(struct cmd_tbl *cmdtp, int flag, int argc,
|
||||
|
|
@ -528,6 +724,7 @@ U_BOOT_CMDREP_COMPLETE(
|
|||
"\tload - load OS image\n"
|
||||
"\tsetup - set up table\n"
|
||||
"\tinfo - show summary info\n"
|
||||
"\tgo - start OS\n",
|
||||
"\tgo - start OS\n"
|
||||
"\tdump [addr] - dump info (optional address of boot params)",
|
||||
complete_zboot
|
||||
);
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue