* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
\*****************************************************************************/
+#include <arpa/inet.h>
#include <string.h>
#include <sys/mman.h>
#include "common.h"
#include "layout.h"
#include "cmos_lowlevel.h"
#include "hexdump.h"
+#include "cbfs.h"
-typedef void (*lbtable_print_fn_t) (const struct lb_record *rec);
+typedef void (*lbtable_print_fn_t) (const struct lb_record * rec);
/* This structure represents an item in the coreboot table that may be
* displayed using the -l option.
*/
-typedef struct
- { uint32_t tag;
- const char *name;
- const char *description;
- const char *nofound_msg;
- lbtable_print_fn_t print_fn;
- }
-lbtable_choice_t;
-
-typedef struct
- { unsigned long start; /* address of first byte of memory range */
- unsigned long end; /* address of last byte of memory range */
- }
-mem_range_t;
-
-static const struct lb_header * lbtable_scan (unsigned long start,
- unsigned long end,
- int *bad_header_count,
- int *bad_table_count);
-static void process_cmos_table (void);
-static void get_cmos_checksum_info (void);
-static void try_convert_checksum_layout (cmos_checksum_layout_t *layout);
-static void try_add_cmos_table_enum (cmos_enum_t *cmos_enum);
-static void try_add_cmos_table_entry (cmos_entry_t *cmos_entry);
-static const struct lb_record * find_lbrec (uint32_t tag);
-static const char * lbrec_tag_to_str (uint32_t tag);
-static const struct cmos_entries * first_cmos_table_entry (void);
-static const struct cmos_entries *
- next_cmos_table_entry (const struct cmos_entries *last);
-static const struct cmos_enums * first_cmos_table_enum (void);
-static const struct cmos_enums * next_cmos_table_enum
- (const struct cmos_enums *last);
-static const struct lb_record * first_cmos_rec (uint32_t tag);
-static const struct lb_record * next_cmos_rec (const struct lb_record *last,
- uint32_t tag);
-static void memory_print_fn (const struct lb_record *rec);
-static void mainboard_print_fn (const struct lb_record *rec);
-static void cmos_opt_table_print_fn (const struct lb_record *rec);
-static void print_option_record (const struct cmos_entries *cmos_entry);
-static void print_enum_record (const struct cmos_enums *cmos_enum);
-static void print_defaults_record (const struct cmos_defaults *cmos_defaults);
-static void print_unknown_record (const struct lb_record *cmos_item);
-static void option_checksum_print_fn (const struct lb_record *rec);
-static void string_print_fn (const struct lb_record *rec);
-static void uint64_to_hex_string (char str[], uint64_t n);
+typedef struct {
+ uint32_t tag;
+ const char *name;
+ const char *description;
+ const char *nofound_msg;
+ lbtable_print_fn_t print_fn;
+} lbtable_choice_t;
+
+typedef struct {
+ unsigned long start; /* address of first byte of memory range */
+ unsigned long end; /* address of last byte of memory range */
+} mem_range_t;
+
+static const struct lb_header *lbtable_scan(unsigned long start,
+ unsigned long end,
+ int *bad_header_count,
+ int *bad_table_count);
+static const char *lbrec_tag_to_str(uint32_t tag);
+static void memory_print_fn(const struct lb_record *rec);
+static void mainboard_print_fn(const struct lb_record *rec);
+static void cmos_opt_table_print_fn(const struct lb_record *rec);
+static void print_option_record(const struct cmos_entries *cmos_entry);
+static void print_enum_record(const struct cmos_enums *cmos_enum);
+static void print_defaults_record(const struct cmos_defaults *cmos_defaults);
+static void print_unknown_record(const struct lb_record *cmos_item);
+static void option_checksum_print_fn(const struct lb_record *rec);
+static void string_print_fn(const struct lb_record *rec);
static const char memory_desc[] =
-" This shows information about system memory.\n";
+ " This shows information about system memory.\n";
static const char mainboard_desc[] =
-" This shows information about your mainboard.\n";
+ " This shows information about your mainboard.\n";
static const char version_desc[] =
-" This shows coreboot version information.\n";
+ " This shows coreboot version information.\n";
static const char extra_version_desc[] =
-" This shows extra coreboot version information.\n";
+ " This shows extra coreboot version information.\n";
-static const char build_desc[] =
-" This shows coreboot build information.\n";
+static const char build_desc[] = " This shows coreboot build information.\n";
static const char compile_time_desc[] =
-" This shows when coreboot was compiled.\n";
+ " This shows when coreboot was compiled.\n";
-static const char compile_by_desc[] =
-" This shows who compiled coreboot.\n";
+static const char compile_by_desc[] = " This shows who compiled coreboot.\n";
static const char compile_host_desc[] =
-" This shows the name of the machine that compiled coreboot.\n";
+ " This shows the name of the machine that compiled coreboot.\n";
static const char compile_domain_desc[] =
-" This shows the domain name of the machine that compiled coreboot.\n";
+ " This shows the domain name of the machine that compiled coreboot.\n";
static const char compiler_desc[] =
-" This shows the name of the compiler used to build coreboot.\n";
+ " This shows the name of the compiler used to build coreboot.\n";
static const char linker_desc[] =
-" This shows the name of the linker used to build coreboot.\n";
+ " This shows the name of the linker used to build coreboot.\n";
static const char assembler_desc[] =
-" This shows the name of the assembler used to build coreboot.\n";
+ " This shows the name of the assembler used to build coreboot.\n";
static const char cmos_opt_table_desc[] =
-" This does a low-level dump of the CMOS option table. The table "
-"contains\n"
-" information about the layout of the values that coreboot stores in\n"
-" nonvolatile RAM.\n";
+ " This does a low-level dump of the CMOS option table. The table "
+ "contains\n"
+ " information about the layout of the values that coreboot stores in\n"
+ " nonvolatile RAM.\n";
static const char option_checksum_desc[] =
-" This shows the location of the CMOS checksum and the area over which it "
-"is\n"
-" calculated.\n";
+ " This shows the location of the CMOS checksum and the area over which it "
+ "is\n" " calculated.\n";
static const char generic_nofound_msg[] =
-"%s: Item %s not found in coreboot table.\n";
+ "%s: Item %s not found in coreboot table.\n";
static const char nofound_msg_cmos_opt_table[] =
-"%s: Item %s not found in coreboot table. Apparently, the "
-"coreboot installed on this system was built without specifying "
-"CONFIG_HAVE_OPTION_TABLE.\n";
+ "%s: Item %s not found in coreboot table. Apparently, the "
+ "coreboot installed on this system was built without specifying "
+ "CONFIG_HAVE_OPTION_TABLE.\n";
static const char nofound_msg_option_checksum[] =
-"%s: Item %s not found in coreboot table. Apparently, you are "
-"using coreboot v1.\n";
+ "%s: Item %s not found in coreboot table. Apparently, you are "
+ "using coreboot v1.\n";
int fd;
* displayed using the -l option.
*/
static const lbtable_choice_t lbtable_choices[NUM_LBTABLE_CHOICES] =
- { { LB_TAG_MEMORY, "memory",
- memory_desc, generic_nofound_msg,
- memory_print_fn
- },
- { LB_TAG_MAINBOARD, "mainboard",
- mainboard_desc, generic_nofound_msg,
- mainboard_print_fn
- },
- { LB_TAG_VERSION, "version",
- version_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_EXTRA_VERSION, "extra_version",
- extra_version_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_BUILD, "build",
- build_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_COMPILE_TIME, "compile_time",
- compile_time_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_COMPILE_BY, "compile_by",
- compile_by_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_COMPILE_HOST, "compile_host",
- compile_host_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_COMPILE_DOMAIN, "compile_domain",
- compile_domain_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_COMPILER, "compiler",
- compiler_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_LINKER, "linker",
- linker_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_ASSEMBLER, "assembler",
- assembler_desc, generic_nofound_msg,
- string_print_fn
- },
- { LB_TAG_CMOS_OPTION_TABLE, "cmos_opt_table",
- cmos_opt_table_desc, nofound_msg_cmos_opt_table,
- cmos_opt_table_print_fn
- },
- { LB_TAG_OPTION_CHECKSUM, "option_checksum",
- option_checksum_desc, nofound_msg_option_checksum,
- option_checksum_print_fn
- }
- };
+ { {LB_TAG_MEMORY, "memory",
+ memory_desc, generic_nofound_msg,
+ memory_print_fn},
+{LB_TAG_MAINBOARD, "mainboard",
+ mainboard_desc, generic_nofound_msg,
+ mainboard_print_fn},
+{LB_TAG_VERSION, "version",
+ version_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_EXTRA_VERSION, "extra_version",
+ extra_version_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_BUILD, "build",
+ build_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_COMPILE_TIME, "compile_time",
+ compile_time_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_COMPILE_BY, "compile_by",
+ compile_by_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_COMPILE_HOST, "compile_host",
+ compile_host_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_COMPILE_DOMAIN, "compile_domain",
+ compile_domain_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_COMPILER, "compiler",
+ compiler_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_LINKER, "linker",
+ linker_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_ASSEMBLER, "assembler",
+ assembler_desc, generic_nofound_msg,
+ string_print_fn},
+{LB_TAG_CMOS_OPTION_TABLE, "cmos_opt_table",
+ cmos_opt_table_desc, nofound_msg_cmos_opt_table,
+ cmos_opt_table_print_fn},
+{LB_TAG_OPTION_CHECKSUM, "option_checksum",
+ option_checksum_desc, nofound_msg_option_checksum,
+ option_checksum_print_fn}
+};
/* The coreboot table resides in low physical memory, which we access using
* /dev/mem. These are ranges of physical memory that should be scanned for a
#define NUM_MEM_RANGES 2
static const mem_range_t mem_ranges[NUM_MEM_RANGES] =
- { { 0x00000000, 0x00000fff },
- { 0x000f0000, 0x000fffff }
- };
+ { {0x00000000, 0x00000fff},
+{0x000f0000, 0x000fffff}
+};
/* This is the number of bytes of physical memory to map, starting at physical
* address 0. This value must be large enough to contain all memory ranges
/* Pointer to coreboot table. */
static const struct lb_header *lbtable = NULL;
-/* The CMOS option table is located within the coreboot table. It tells us
- * where the CMOS parameters are located in the nonvolatile RAM.
- */
-static const struct cmos_option_table *cmos_table = NULL;
-
static const hexdump_format_t format =
- { 12, 4, " ", " | ", " ", " | ", '.', NULL };
+ { 12, 4, " ", " | ", " ", " | ", '.' };
/****************************************************************************
* vtophys
*
* Find the coreboot table and set global variable lbtable to point to it.
****************************************************************************/
-void get_lbtable (void)
- { int i, bad_header_count, bad_table_count, bad_headers, bad_tables;
-
- if (lbtable != NULL)
- return;
-
- /* The coreboot table is located in low physical memory, which may be
- * conveniently accessed by calling mmap() on /dev/mem.
- */
-
- if ((fd = open("/dev/mem", O_RDONLY, 0)) < 0)
- { fprintf(stderr, "%s: Can not open /dev/mem for reading: %s\n",
- prog_name, strerror(errno));
- exit(1);
- }
-
- if ((low_phys_mem = mmap(NULL, BYTES_TO_MAP, PROT_READ, MAP_SHARED, fd, 0))
- == MAP_FAILED)
- { fprintf(stderr, "%s: Failed to mmap /dev/mem: %s\n", prog_name,
- strerror(errno));
- exit(1);
- }
-
- bad_header_count = 0;
- bad_table_count = 0;
-
- for (i = 0; i < NUM_MEM_RANGES; i++)
- { lbtable = lbtable_scan(phystov(mem_ranges[i].start),
- phystov(mem_ranges[i].end),
- &bad_headers, &bad_tables);
-
- if (lbtable != NULL)
- return; /* success: we found it! */
-
- bad_header_count += bad_headers;
- bad_table_count += bad_tables;
- }
-
- fprintf(stderr,
- "%s: coreboot table not found. coreboot does not appear to\n"
- " be installed on this system. Scanning for the table "
- "produced the\n"
- " following results:\n\n"
- " %d valid signatures were found with bad header "
- "checksums.\n"
- " %d valid headers were found with bad table "
- "checksums.\n",
- prog_name, bad_header_count, bad_table_count);
- exit(1);
- }
-
-/****************************************************************************
- * get_layout_from_cmos_table
- *
- * Find the CMOS table which is stored within the coreboot table and set the
- * global variable cmos_table to point to it.
- ****************************************************************************/
-void get_layout_from_cmos_table (void)
- {
-
- get_lbtable();
- cmos_table = (const struct cmos_option_table *)
- find_lbrec(LB_TAG_CMOS_OPTION_TABLE);
-
- if ((cmos_table) == NULL)
- { fprintf(stderr,
- "%s: CMOS option table not found in coreboot table. "
- "Apparently, the coreboot installed on this system was "
- "built without specifying CONFIG_HAVE_OPTION_TABLE.\n",
- prog_name);
- exit(1);
- }
-
- process_cmos_table();
- get_cmos_checksum_info();
- }
+void get_lbtable(void)
+{
+ int i, bad_header_count, bad_table_count, bad_headers, bad_tables;
+
+ if (lbtable != NULL)
+ return;
+
+ /* The coreboot table is located in low physical memory, which may be
+ * conveniently accessed by calling mmap() on /dev/mem.
+ */
+
+ if ((fd = open("/dev/mem", O_RDONLY, 0)) < 0) {
+ fprintf(stderr, "%s: Can not open /dev/mem for reading: %s\n",
+ prog_name, strerror(errno));
+ exit(1);
+ }
+
+ if ((low_phys_mem =
+ mmap(NULL, BYTES_TO_MAP, PROT_READ, MAP_SHARED, fd, 0))
+ == MAP_FAILED) {
+ fprintf(stderr, "%s: Failed to mmap /dev/mem: %s\n", prog_name,
+ strerror(errno));
+ exit(1);
+ }
+
+ bad_header_count = 0;
+ bad_table_count = 0;
+
+ for (i = 0; i < NUM_MEM_RANGES; i++) {
+ lbtable = lbtable_scan(phystov(mem_ranges[i].start),
+ phystov(mem_ranges[i].end),
+ &bad_headers, &bad_tables);
+
+ if (lbtable != NULL)
+ return; /* success: we found it! */
+
+ bad_header_count += bad_headers;
+ bad_table_count += bad_tables;
+ }
+
+ fprintf(stderr,
+ "%s: coreboot table not found. coreboot does not appear to\n"
+ " be installed on this system. Scanning for the table "
+ "produced the\n"
+ " following results:\n\n"
+ " %d valid signatures were found with bad header "
+ "checksums.\n"
+ " %d valid headers were found with bad table "
+ "checksums.\n", prog_name, bad_header_count, bad_table_count);
+ exit(1);
+}
/****************************************************************************
* dump_lbtable
*
* Do a low-level dump of the coreboot table.
****************************************************************************/
-void dump_lbtable (void)
- { const char *p, *data;
- uint32_t bytes_processed;
- const struct lb_record *lbrec;
-
- p = ((const char *) lbtable) + lbtable->header_bytes;
- printf("Coreboot table at physical address 0x%lx:\n"
- " signature: 0x%x (ASCII: %c%c%c%c)\n"
- " header_bytes: 0x%x (decimal: %d)\n"
- " header_checksum: 0x%x (decimal: %d)\n"
- " table_bytes: 0x%x (decimal: %d)\n"
- " table_checksum: 0x%x (decimal: %d)\n"
- " table_entries: 0x%x (decimal: %d)\n\n",
- vtophys(lbtable), *((uint32_t *) lbtable->signature),
- lbtable->signature[0], lbtable->signature[1],lbtable->signature[2],
- lbtable->signature[3], lbtable->header_bytes, lbtable->header_bytes,
- lbtable->header_checksum, lbtable->header_checksum,
- lbtable->table_bytes, lbtable->table_bytes, lbtable->table_checksum,
- lbtable->table_checksum, lbtable->table_entries,
- lbtable->table_entries);
-
- if ((lbtable->table_bytes == 0) != (lbtable->table_entries == 0))
- { printf("Inconsistent values for table_bytes and table_entries!!!\n"
- "They should be either both 0 or both nonzero.\n");
- return;
- }
-
- if (lbtable->table_bytes == 0)
- { printf("The coreboot table is empty!!!\n");
- return;
- }
-
- for (bytes_processed = 0; ; )
- { lbrec = (const struct lb_record *) &p[bytes_processed];
- printf(" %s record at physical address 0x%lx:\n"
- " tag: 0x%x (decimal: %d)\n"
- " size: 0x%x (decimal: %d)\n"
- " data:\n",
- lbrec_tag_to_str(lbrec->tag), vtophys(lbrec), lbrec->tag,
- lbrec->tag, lbrec->size, lbrec->size);
-
- data = ((const char *) lbrec) + sizeof(*lbrec);
- hexdump(data, lbrec->size - sizeof(*lbrec), vtophys(data), stdout,
- &format);
-
- bytes_processed += lbrec->size;
-
- if (bytes_processed >= lbtable->table_bytes)
- break;
-
- printf("\n");
- }
- }
+void dump_lbtable(void)
+{
+ const char *p, *data;
+ uint32_t bytes_processed;
+ const struct lb_record *lbrec;
+
+ p = ((const char *)lbtable) + lbtable->header_bytes;
+ printf("Coreboot table at physical address 0x%lx:\n"
+ " signature: 0x%x (ASCII: %c%c%c%c)\n"
+ " header_bytes: 0x%x (decimal: %d)\n"
+ " header_checksum: 0x%x (decimal: %d)\n"
+ " table_bytes: 0x%x (decimal: %d)\n"
+ " table_checksum: 0x%x (decimal: %d)\n"
+ " table_entries: 0x%x (decimal: %d)\n\n",
+ vtophys(lbtable), lbtable->signature32,
+ lbtable->signature[0], lbtable->signature[1],
+ lbtable->signature[2], lbtable->signature[3],
+ lbtable->header_bytes, lbtable->header_bytes,
+ lbtable->header_checksum, lbtable->header_checksum,
+ lbtable->table_bytes, lbtable->table_bytes,
+ lbtable->table_checksum, lbtable->table_checksum,
+ lbtable->table_entries, lbtable->table_entries);
+
+ if ((lbtable->table_bytes == 0) != (lbtable->table_entries == 0)) {
+ printf
+ ("Inconsistent values for table_bytes and table_entries!!!\n"
+ "They should be either both 0 or both nonzero.\n");
+ return;
+ }
+
+ if (lbtable->table_bytes == 0) {
+ printf("The coreboot table is empty!!!\n");
+ return;
+ }
+
+ for (bytes_processed = 0;;) {
+ lbrec = (const struct lb_record *)&p[bytes_processed];
+ printf(" %s record at physical address 0x%lx:\n"
+ " tag: 0x%x (decimal: %d)\n"
+ " size: 0x%x (decimal: %d)\n"
+ " data:\n",
+ lbrec_tag_to_str(lbrec->tag), vtophys(lbrec), lbrec->tag,
+ lbrec->tag, lbrec->size, lbrec->size);
+
+ data = ((const char *)lbrec) + sizeof(*lbrec);
+ hexdump(data, lbrec->size - sizeof(*lbrec), vtophys(data),
+ stdout, &format);
+
+ bytes_processed += lbrec->size;
+
+ if (bytes_processed >= lbtable->table_bytes)
+ break;
+
+ printf("\n");
+ }
+}
/****************************************************************************
* list_lbtable_choices
* List names and informational blurbs for items from the coreboot table
* that may be displayed using the -l option.
****************************************************************************/
-void list_lbtable_choices (void)
- { int i;
+void list_lbtable_choices(void)
+{
+ int i;
- for (i = 0; ; )
- { printf("%s:\n%s",
- lbtable_choices[i].name, lbtable_choices[i].description);
+ for (i = 0;;) {
+ printf("%s:\n%s",
+ lbtable_choices[i].name, lbtable_choices[i].description);
- if (++i >= NUM_LBTABLE_CHOICES)
- break;
+ if (++i >= NUM_LBTABLE_CHOICES)
+ break;
- printf("\n");
- }
- }
+ printf("\n");
+ }
+}
/****************************************************************************
* list_lbtable_item
*
* Show the coreboot table item specified by 'item'.
****************************************************************************/
-void list_lbtable_item (const char item[])
- { int i;
- const struct lb_record *rec;
-
- for (i = 0; i < NUM_LBTABLE_CHOICES; i++)
- { if (strcmp(item, lbtable_choices[i].name) == 0)
- break;
- }
-
- if (i == NUM_LBTABLE_CHOICES)
- { fprintf(stderr, "%s: Invalid coreboot table item %s.\n", prog_name,
- item);
- exit(1);
- }
-
- if ((rec = find_lbrec(lbtable_choices[i].tag)) == NULL)
- { fprintf(stderr, lbtable_choices[i].nofound_msg, prog_name,
- lbtable_choices[i].name);
- exit(1);
- }
-
- lbtable_choices[i].print_fn(rec);
- }
+void list_lbtable_item(const char item[])
+{
+ int i;
+ const struct lb_record *rec;
+
+ for (i = 0; i < NUM_LBTABLE_CHOICES; i++) {
+ if (strcmp(item, lbtable_choices[i].name) == 0)
+ break;
+ }
+
+ if (i == NUM_LBTABLE_CHOICES) {
+ fprintf(stderr, "%s: Invalid coreboot table item %s.\n",
+ prog_name, item);
+ exit(1);
+ }
+
+ if ((rec = find_lbrec(lbtable_choices[i].tag)) == NULL) {
+ fprintf(stderr, lbtable_choices[i].nofound_msg, prog_name,
+ lbtable_choices[i].name);
+ exit(1);
+ }
+
+ lbtable_choices[i].print_fn(rec);
+}
/****************************************************************************
* lbtable_scan
* Indicates the number of times in which a header with a valid
* checksum was found but the table checksum was invalid.
****************************************************************************/
-static const struct lb_header * lbtable_scan (unsigned long start,
- unsigned long end,
- int *bad_header_count,
- int *bad_table_count)
- { static const char signature[] = { 'L', 'B', 'I', 'O' };
- const struct lb_header *table;
- const struct lb_forward *forward;
- const uint32_t *p;
- uint32_t sig;
-
- assert(end >= start);
- sig = (*((const uint32_t *) signature));
- table = NULL;
- *bad_header_count = 0;
- *bad_table_count = 0;
-
- /* Look for signature. Table is aligned on 16-byte boundary. Therefore
- * only check every fourth 32-bit memory word. As the loop is coded below,
- * this function will behave in a reasonable manner for ALL possible values
- * for 'start' and 'end': even weird boundary cases like 0x00000000 and
- * 0xffffffff on a 32-bit architecture.
- */
- for (p = (const uint32_t *) start;
- (((unsigned long) p) <= end) &&
- ((end - (unsigned long) p) >= (sizeof(uint32_t) - 1));
- p += 4)
- { if (*p != sig)
- continue;
-
- /* We found a valid signature. */
- table = (const struct lb_header *) p;
-
- /* validate header checksum */
- if (compute_ip_checksum((void *) table, sizeof(*table)))
- { (*bad_header_count)++;
- continue;
- }
-
- /* validate table checksum */
- if (table->table_checksum !=
- compute_ip_checksum(((char *) table) + sizeof(*table),
- table->table_bytes))
- { (*bad_table_count)++;
- continue;
- }
-
- /* checksums are ok: we found it! */
- /* But it may just be a forwarding table, so look if there's a forwarder */
- lbtable = table;
- forward = (struct lb_forward *)find_lbrec(LB_TAG_FORWARD);
- lbtable = NULL;
-
- if (forward) {
- uint64_t new_phys = forward->forward;
-
- new_phys &= ~(getpagesize()-1);
-
- munmap((void *)low_phys_mem, BYTES_TO_MAP);
- if ((low_phys_mem = mmap(NULL, BYTES_TO_MAP, PROT_READ, MAP_SHARED, fd, (off_t)new_phys)) == MAP_FAILED)
- { fprintf(stderr, "%s: Failed to mmap /dev/mem: %s\n", prog_name,
- strerror(errno));
- exit(1);
- }
- low_phys_base = new_phys;
- table = lbtable_scan(phystov(low_phys_base), phystov(low_phys_base + BYTES_TO_MAP), bad_header_count, bad_table_count);
- }
- return table;
- }
-
- return NULL;
- }
-
-/****************************************************************************
- * process_cmos_table
- *
- * Extract layout information from the CMOS option table and store it in our
- * internal repository.
- ****************************************************************************/
-static void process_cmos_table (void)
- { const struct cmos_enums *p;
- const struct cmos_entries *q;
- cmos_enum_t cmos_enum;
- cmos_entry_t cmos_entry;
-
- /* First add the enums. */
- for (p = first_cmos_table_enum(); p != NULL; p = next_cmos_table_enum(p))
- { cmos_enum.config_id = p->config_id;
- cmos_enum.value = p->value;
- strncpy(cmos_enum.text, (char *)p->text, CMOS_MAX_TEXT_LENGTH);
- cmos_enum.text[CMOS_MAX_TEXT_LENGTH] = '\0';
- try_add_cmos_table_enum(&cmos_enum);
- }
-
- /* Now add the entries. We must add the entries after the enums because
- * the entries are sanity checked against the enums as they are added.
- */
- for (q = first_cmos_table_entry(); q != NULL; q = next_cmos_table_entry(q))
- { cmos_entry.bit = q->bit;
- cmos_entry.length = q->length;
-
- switch (q->config)
- { case 'e':
- cmos_entry.config = CMOS_ENTRY_ENUM;
- break;
-
- case 'h':
- cmos_entry.config = CMOS_ENTRY_HEX;
- break;
-
- case 'r':
- cmos_entry.config = CMOS_ENTRY_RESERVED;
- break;
-
- case 's':
- cmos_entry.config = CMOS_ENTRY_STRING;
- break;
-
- default:
- fprintf(stderr,
- "%s: Entry in CMOS option table has unknown config "
- "value.\n", prog_name);
- exit(1);
- }
-
- cmos_entry.config_id = q->config_id;
- strncpy(cmos_entry.name, (char *)q->name, CMOS_MAX_NAME_LENGTH);
- cmos_entry.name[CMOS_MAX_NAME_LENGTH] = '\0';
- try_add_cmos_table_entry(&cmos_entry);
- }
- }
-
-/****************************************************************************
- * get_cmos_checksum_info
- *
- * Get layout information for CMOS checksum.
- ****************************************************************************/
-static void get_cmos_checksum_info (void)
- { const cmos_entry_t *e;
- struct cmos_checksum *checksum;
- cmos_checksum_layout_t layout;
- unsigned index, index2;
-
- checksum = (struct cmos_checksum *) find_lbrec(LB_TAG_OPTION_CHECKSUM);
-
- if (checksum != NULL)
- { /* We are lucky. The coreboot table hints us to the checksum.
- * We might have to check the type field here though.
- */
- layout.summed_area_start = checksum->range_start;
- layout.summed_area_end = checksum->range_end;
- layout.checksum_at = checksum->location;
- try_convert_checksum_layout(&layout);
- cmos_checksum_start = layout.summed_area_start;
- cmos_checksum_end = layout.summed_area_end;
- cmos_checksum_index = layout.checksum_at;
- return;
- }
-
- if ((e = find_cmos_entry(checksum_param_name)) == NULL)
- return;
-
- /* If we get here, we are unlucky. The CMOS option table contains the
- * location of the CMOS checksum. However, there is no information
- * regarding which bytes of the CMOS area the checksum is computed over.
- * Thus we have to hope our presets will be fine.
- */
-
- if (e->bit % 8)
- { fprintf(stderr, "%s: Error: CMOS checksum is not byte-aligned.\n",
- prog_name);
- exit(1);
- }
-
- index = e->bit / 8;
- index2 = index + 1; /* The CMOS checksum occupies 16 bits. */
-
- if (verify_cmos_byte_index(index) || verify_cmos_byte_index(index2))
- { fprintf(stderr, "%s: Error: CMOS checksum location out of range.\n",
- prog_name);
- exit(1);
- }
-
- if (((index >= cmos_checksum_start) && (index <= cmos_checksum_end)) ||
- (((index2) >= cmos_checksum_start) && ((index2) <= cmos_checksum_end)))
- { fprintf(stderr, "%s: Error: CMOS checksum overlaps checksummed area.\n",
- prog_name);
- exit(1);
- }
-
- cmos_checksum_index = index;
- }
-
-/****************************************************************************
- * try_convert_checksum_layout
- *
- * Perform sanity checking on CMOS checksum layout information and attempt to
- * convert information from bit positions to byte positions. Return OK on
- * success or an error code on failure.
- ****************************************************************************/
-static void try_convert_checksum_layout (cmos_checksum_layout_t *layout)
- { switch (checksum_layout_to_bytes(layout))
- { case OK:
- return;
-
- case LAYOUT_SUMMED_AREA_START_NOT_ALIGNED:
- fprintf(stderr,
- "%s: CMOS checksummed area start is not byte-aligned.\n",
- prog_name);
- break;
-
- case LAYOUT_SUMMED_AREA_END_NOT_ALIGNED:
- fprintf(stderr,
- "%s: CMOS checksummed area end is not byte-aligned.\n",
- prog_name);
- break;
-
- case LAYOUT_CHECKSUM_LOCATION_NOT_ALIGNED:
- fprintf(stderr,
- "%s: CMOS checksum location is not byte-aligned.\n",
- prog_name);
- break;
-
- case LAYOUT_INVALID_SUMMED_AREA:
- fprintf(stderr,
- "%s: CMOS checksummed area end must be greater than "
- "CMOS checksummed area start.\n",
- prog_name);
- break;
-
- case LAYOUT_CHECKSUM_OVERLAPS_SUMMED_AREA:
- fprintf(stderr,
- "%s: CMOS checksum overlaps checksummed area.\n",
- prog_name);
- break;
-
- case LAYOUT_SUMMED_AREA_OUT_OF_RANGE:
- fprintf(stderr,
- "%s: CMOS checksummed area out of range.\n",
- prog_name);
- break;
-
- case LAYOUT_CHECKSUM_LOCATION_OUT_OF_RANGE:
- fprintf(stderr,
- "%s: CMOS checksum location out of range.\n",
- prog_name);
- break;
-
- default:
- BUG();
- }
-
- exit(1);
- }
-
-/****************************************************************************
- * try_add_cmos_table_enum
- *
- * Attempt to add a CMOS enum to our internal repository. Exit with an error
- * message on failure.
- ****************************************************************************/
-static void try_add_cmos_table_enum (cmos_enum_t *cmos_enum)
- { switch (add_cmos_enum(cmos_enum))
- { case OK:
- return;
-
- case LAYOUT_DUPLICATE_ENUM:
- fprintf(stderr, "%s: Duplicate enum %s found in CMOS option "
- "table.\n", prog_name, cmos_enum->text);
- break;
-
- default:
- BUG();
- }
-
- exit(1);
- }
-
-/****************************************************************************
- * try_add_cmos_table_entry
- *
- * Attempt to add a CMOS entry to our internal repository. Exit with an
- * error message on failure.
- ****************************************************************************/
-static void try_add_cmos_table_entry (cmos_entry_t *cmos_entry)
- { const cmos_entry_t *conflict;
-
- switch (add_cmos_entry(cmos_entry, &conflict))
- { case OK:
- return;
-
- case CMOS_AREA_OUT_OF_RANGE:
- fprintf(stderr,
- "%s: Bad CMOS option layout in CMOS option table entry "
- "%s.\n", prog_name, cmos_entry->name);
- break;
-
- case CMOS_AREA_TOO_WIDE:
- fprintf(stderr,
- "%s: Area too wide for CMOS option table entry %s.\n",
- prog_name, cmos_entry->name);
- break;
-
- case LAYOUT_ENTRY_OVERLAP:
- fprintf(stderr,
- "%s: CMOS option table entries %s and %s have overlapping "
- "layouts.\n", prog_name, cmos_entry->name, conflict->name);
- break;
-
- case LAYOUT_ENTRY_BAD_LENGTH:
- /* Silently ignore entries with zero length. Although this should
- * never happen in practice, we should handle the case in a
- * reasonable manner just to be safe.
- */
- return;
-
- default:
- BUG();
- }
-
- exit(1);
- }
+static const struct lb_header *lbtable_scan(unsigned long start,
+ unsigned long end,
+ int *bad_header_count,
+ int *bad_table_count)
+{
+ static const char signature[4] = { 'L', 'B', 'I', 'O' };
+ const struct lb_header *table;
+ const struct lb_forward *forward;
+ const uint32_t *p;
+ uint32_t sig;
+
+ assert(end >= start);
+ memcpy(&sig, signature, sizeof(sig));
+ table = NULL;
+ *bad_header_count = 0;
+ *bad_table_count = 0;
+
+ /* Look for signature. Table is aligned on 16-byte boundary. Therefore
+ * only check every fourth 32-bit memory word. As the loop is coded below,
+ * this function will behave in a reasonable manner for ALL possible values
+ * for 'start' and 'end': even weird boundary cases like 0x00000000 and
+ * 0xffffffff on a 32-bit architecture.
+ */
+ for (p = (const uint32_t *)start;
+ (((unsigned long)p) <= end) &&
+ ((end - (unsigned long)p) >= (sizeof(uint32_t) - 1)); p += 4) {
+ if (*p != sig)
+ continue;
+
+ /* We found a valid signature. */
+ table = (const struct lb_header *)p;
+
+ /* validate header checksum */
+ if (compute_ip_checksum((void *)table, sizeof(*table))) {
+ (*bad_header_count)++;
+ continue;
+ }
+
+ /* validate table checksum */
+ if (table->table_checksum !=
+ compute_ip_checksum(((char *)table) + sizeof(*table),
+ table->table_bytes)) {
+ (*bad_table_count)++;
+ continue;
+ }
+
+ /* checksums are ok: we found it! */
+ /* But it may just be a forwarding table, so look if there's a forwarder */
+ lbtable = table;
+ forward = (struct lb_forward *)find_lbrec(LB_TAG_FORWARD);
+ lbtable = NULL;
+
+ if (forward) {
+ uint64_t new_phys = forward->forward;
+
+ new_phys &= ~(getpagesize() - 1);
+
+ munmap((void *)low_phys_mem, BYTES_TO_MAP);
+ if ((low_phys_mem =
+ mmap(NULL, BYTES_TO_MAP, PROT_READ, MAP_SHARED, fd,
+ (off_t) new_phys)) == MAP_FAILED) {
+ fprintf(stderr,
+ "%s: Failed to mmap /dev/mem: %s\n",
+ prog_name, strerror(errno));
+ exit(1);
+ }
+ low_phys_base = new_phys;
+ table =
+ lbtable_scan(phystov(low_phys_base),
+ phystov(low_phys_base + BYTES_TO_MAP),
+ bad_header_count, bad_table_count);
+ }
+ return table;
+ }
+
+ return NULL;
+}
/****************************************************************************
* find_lbrec
* Find the record in the coreboot table that matches 'tag'. Return pointer
* to record on success or NULL if record not found.
****************************************************************************/
-static const struct lb_record * find_lbrec (uint32_t tag)
- { const char *p;
- uint32_t bytes_processed;
- const struct lb_record *lbrec;
+const struct lb_record *find_lbrec(uint32_t tag)
+{
+ const char *p;
+ uint32_t bytes_processed;
+ const struct lb_record *lbrec;
- p = ((const char *) lbtable) + lbtable->header_bytes;
+ p = ((const char *)lbtable) + lbtable->header_bytes;
- for (bytes_processed = 0;
- bytes_processed < lbtable->table_bytes;
- bytes_processed += lbrec->size)
- { lbrec = (const struct lb_record *) &p[bytes_processed];
+ for (bytes_processed = 0;
+ bytes_processed < lbtable->table_bytes;
+ bytes_processed += lbrec->size) {
+ lbrec = (const struct lb_record *)&p[bytes_processed];
- if (lbrec->tag == tag)
- return lbrec;
- }
+ if (lbrec->tag == tag)
+ return lbrec;
+ }
- return NULL;
- }
+ return NULL;
+}
/****************************************************************************
* lbrec_tag_to_str
* Return a pointer to the string representation of the given coreboot table
* tag.
****************************************************************************/
-static const char * lbrec_tag_to_str (uint32_t tag)
- { switch (tag)
- { case LB_TAG_UNUSED:
- return "UNUSED";
+static const char *lbrec_tag_to_str(uint32_t tag)
+{
+ switch (tag) {
+ case LB_TAG_UNUSED:
+ return "UNUSED";
- case LB_TAG_MEMORY:
- return "MEMORY";
+ case LB_TAG_MEMORY:
+ return "MEMORY";
- case LB_TAG_HWRPB:
- return "HWRPB";
+ case LB_TAG_HWRPB:
+ return "HWRPB";
- case LB_TAG_MAINBOARD:
- return "MAINBOARD";
+ case LB_TAG_MAINBOARD:
+ return "MAINBOARD";
- case LB_TAG_VERSION:
- return "VERSION";
+ case LB_TAG_VERSION:
+ return "VERSION";
- case LB_TAG_EXTRA_VERSION:
- return "EXTRA_VERSION";
+ case LB_TAG_EXTRA_VERSION:
+ return "EXTRA_VERSION";
- case LB_TAG_BUILD:
- return "BUILD";
+ case LB_TAG_BUILD:
+ return "BUILD";
- case LB_TAG_COMPILE_TIME:
- return "COMPILE_TIME";
+ case LB_TAG_COMPILE_TIME:
+ return "COMPILE_TIME";
- case LB_TAG_COMPILE_BY:
- return "COMPILE_BY";
+ case LB_TAG_COMPILE_BY:
+ return "COMPILE_BY";
- case LB_TAG_COMPILE_HOST:
- return "COMPILE_HOST";
+ case LB_TAG_COMPILE_HOST:
+ return "COMPILE_HOST";
- case LB_TAG_COMPILE_DOMAIN:
- return "COMPILE_DOMAIN";
+ case LB_TAG_COMPILE_DOMAIN:
+ return "COMPILE_DOMAIN";
- case LB_TAG_COMPILER:
- return "COMPILER";
+ case LB_TAG_COMPILER:
+ return "COMPILER";
- case LB_TAG_LINKER:
- return "LINKER";
+ case LB_TAG_LINKER:
+ return "LINKER";
- case LB_TAG_ASSEMBLER:
- return "ASSEMBLER";
+ case LB_TAG_ASSEMBLER:
+ return "ASSEMBLER";
- case LB_TAG_SERIAL:
- return "SERIAL";
+ case LB_TAG_SERIAL:
+ return "SERIAL";
- case LB_TAG_CONSOLE:
- return "CONSOLE";
+ case LB_TAG_CONSOLE:
+ return "CONSOLE";
- case LB_TAG_FORWARD:
- return "FORWARD";
+ case LB_TAG_FORWARD:
+ return "FORWARD";
- case LB_TAG_CMOS_OPTION_TABLE:
- return "CMOS_OPTION_TABLE";
+ case LB_TAG_CMOS_OPTION_TABLE:
+ return "CMOS_OPTION_TABLE";
- case LB_TAG_OPTION_CHECKSUM:
- return "OPTION_CHECKSUM";
+ case LB_TAG_OPTION_CHECKSUM:
+ return "OPTION_CHECKSUM";
- default:
- break;
- }
+ default:
+ break;
+ }
- return "UNKNOWN";
- }
-
-/****************************************************************************
- * first_cmos_table_entry
- *
- * Return a pointer to the first entry in the CMOS table that represents a
- * CMOS parameter. Return NULL if CMOS table is empty.
- ****************************************************************************/
-static const struct cmos_entries * first_cmos_table_entry (void)
- { return (const struct cmos_entries *) first_cmos_rec(LB_TAG_OPTION); }
-
-/****************************************************************************
- * next_cmos_table_entry
- *
- * Return a pointer to the next entry after 'last' in the CMOS table that
- * represents a CMOS parameter. Return NULL if there are no more parameters.
- ****************************************************************************/
-static const struct cmos_entries *
- next_cmos_table_entry (const struct cmos_entries *last)
- { return (const struct cmos_entries *)
- next_cmos_rec((const struct lb_record *) last, LB_TAG_OPTION);
- }
-
-/****************************************************************************
- * first_cmos_table_enum
- *
- * Return a pointer to the first entry in the CMOS table that represents a
- * possible CMOS parameter value. Return NULL if the table does not contain
- * any such entries.
- ****************************************************************************/
-static const struct cmos_enums * first_cmos_table_enum (void)
- { return (const struct cmos_enums *) first_cmos_rec(LB_TAG_OPTION_ENUM); }
-
-/****************************************************************************
- * next_cmos_table_enum
- *
- * Return a pointer to the next entry after 'last' in the CMOS table that
- * represents a possible CMOS parameter value. Return NULL if there are no
- * more parameter values.
- ****************************************************************************/
-static const struct cmos_enums * next_cmos_table_enum
- (const struct cmos_enums *last)
- { return (const struct cmos_enums *)
- next_cmos_rec((const struct lb_record *) last, LB_TAG_OPTION_ENUM);
- }
-
-/****************************************************************************
- * first_cmos_rec
- *
- * Return a pointer to the first entry in the CMOS table whose type matches
- * 'tag'. Return NULL if CMOS table contains no such entry.
- *
- * Possible values for 'tag' are as follows:
- *
- * LB_TAG_OPTION: The entry represents a CMOS parameter.
- * LB_TAG_OPTION_ENUM: The entry represents a possible value for a CMOS
- * parameter of type 'enum'.
- *
- * The CMOS table tells us where in the nonvolatile RAM to look for CMOS
- * parameter values and specifies their types as 'enum', 'hex', or
- * 'reserved'.
- ****************************************************************************/
-static const struct lb_record * first_cmos_rec (uint32_t tag)
- { const char *p;
- uint32_t bytes_processed, bytes_for_entries;
- const struct lb_record *lbrec;
-
- p = ((const char *) cmos_table) + cmos_table->header_length;
- bytes_for_entries = cmos_table->size - cmos_table->header_length;
-
- for (bytes_processed = 0;
- bytes_processed < bytes_for_entries;
- bytes_processed += lbrec->size)
- { lbrec = (const struct lb_record *) &p[bytes_processed];
-
- if (lbrec->tag == tag)
- return lbrec;
- }
-
- return NULL;
- }
-
-/****************************************************************************
- * next_cmos_rec
- *
- * Return a pointer to the next entry after 'last' in the CMOS table whose
- * type matches 'tag'. Return NULL if the table contains no more entries of
- * this type.
- ****************************************************************************/
-static const struct lb_record * next_cmos_rec (const struct lb_record *last,
- uint32_t tag)
- { const char *p;
- uint32_t bytes_processed, bytes_for_entries, last_offset;
- const struct lb_record *lbrec;
-
- p = ((const char *) cmos_table) + cmos_table->header_length;
- bytes_for_entries = cmos_table->size - cmos_table->header_length;
- last_offset = ((const char *) last) - p;
-
- for (bytes_processed = last_offset + last->size;
- bytes_processed < bytes_for_entries;
- bytes_processed += lbrec->size)
- { lbrec = (const struct lb_record *) &p[bytes_processed];
-
- if (lbrec->tag == tag)
- return lbrec;
- }
-
- return NULL;
- }
+ return "UNKNOWN";
+}
/****************************************************************************
* memory_print_fn
*
* Display function for 'memory' item of coreboot table.
****************************************************************************/
-static void memory_print_fn (const struct lb_record *rec)
- { char start_str[19], end_str[19], size_str[19];
- const struct lb_memory *p;
- const char *mem_type;
- const struct lb_memory_range *ranges;
- uint64_t size, start, end;
- int i, entries;
-
- p = (const struct lb_memory *) rec;
- entries = (p->size - sizeof(*p)) / sizeof(p->map[0]);
- ranges = p->map;
-
- if (entries == 0)
- { printf("No memory ranges were found.\n");
- return;
- }
-
- for (i = 0; ; )
- { switch (ranges[i].type)
- { case LB_MEM_RAM:
- mem_type = "AVAILABLE";
- break;
-
- case LB_MEM_RESERVED:
- mem_type = "RESERVED";
- break;
-
- case LB_MEM_TABLE:
- mem_type = "CONFIG_TABLE";
- break;
-
- default:
- mem_type = "UNKNOWN";
- break;
- }
-
- size = unpack_lb64(ranges[i].size);
- start = unpack_lb64(ranges[i].start);
- end = start + size - 1;
- uint64_to_hex_string(start_str, start);
- uint64_to_hex_string(end_str, end);
- uint64_to_hex_string(size_str, size);
- printf("%s memory:\n"
- " from physical addresses %s to %s\n"
- " size is %s bytes (%lld in decimal)\n",
- mem_type, start_str, end_str, size_str,
- (unsigned long long) size);
-
- if (++i >= entries)
- break;
-
- printf("\n");
- }
- }
+static void memory_print_fn(const struct lb_record *rec)
+{
+ const struct lb_memory *p;
+ const char *mem_type;
+ const struct lb_memory_range *ranges;
+ uint64_t size, start, end;
+ int i, entries;
+
+ p = (const struct lb_memory *)rec;
+ entries = (p->size - sizeof(*p)) / sizeof(p->map[0]);
+ ranges = p->map;
+
+ if (entries == 0) {
+ printf("No memory ranges were found.\n");
+ return;
+ }
+
+ for (i = 0;;) {
+ switch (ranges[i].type) {
+ case LB_MEM_RAM:
+ mem_type = "AVAILABLE";
+ break;
+
+ case LB_MEM_RESERVED:
+ mem_type = "RESERVED";
+ break;
+
+ case LB_MEM_TABLE:
+ mem_type = "CONFIG_TABLE";
+ break;
+
+ default:
+ mem_type = "UNKNOWN";
+ break;
+ }
+
+ size = unpack_lb64(ranges[i].size);
+ start = unpack_lb64(ranges[i].start);
+ end = start + size - 1;
+ printf("%s memory:\n"
+ " from physical addresses 0x%016llx to 0x%016llx\n"
+ " size is 0x%016llx bytes (%lld in decimal)\n",
+ mem_type, start, end, size,
+ (unsigned long long)size);
+
+ if (++i >= entries)
+ break;
+
+ printf("\n");
+ }
+}
/****************************************************************************
* mainboard_print_fn
*
* Display function for 'mainboard' item of coreboot table.
****************************************************************************/
-static void mainboard_print_fn (const struct lb_record *rec)
- { const struct lb_mainboard *p;
+static void mainboard_print_fn(const struct lb_record *rec)
+{
+ const struct lb_mainboard *p;
- p = (const struct lb_mainboard *) rec;
- printf("Vendor: %s\n"
- "Part number: %s\n",
- &p->strings[p->vendor_idx],
- &p->strings[p->part_number_idx]);
- }
+ p = (const struct lb_mainboard *)rec;
+ printf("Vendor: %s\n"
+ "Part number: %s\n",
+ &p->strings[p->vendor_idx], &p->strings[p->part_number_idx]);
+}
/****************************************************************************
* cmos_opt_table_print_fn
*
* Display function for 'cmos_opt_table' item of coreboot table.
****************************************************************************/
-static void cmos_opt_table_print_fn (const struct lb_record *rec)
- {
- const struct cmos_option_table *p;
- const struct lb_record *cmos_item;
- uint32_t bytes_processed, bytes_for_entries;
- const char *q;
-
- p = (const struct cmos_option_table *) rec;
- q = ((const char *) p) + p->header_length;
- bytes_for_entries = p->size - p->header_length;
-
- printf("CMOS option table at physical address 0x%lx:\n"
- " tag: 0x%x (decimal: %d)\n"
- " size: 0x%x (decimal: %d)\n"
- " header_length: 0x%x (decimal: %d)\n\n",
- vtophys(p), p->tag, p->tag, p->size, p->size, p->header_length,
- p->header_length);
-
- if (p->header_length > p->size)
- { printf("Header length for CMOS option table is greater than the size "
- "of the entire table including header!!!\n");
- return;
- }
-
- if (bytes_for_entries == 0)
- { printf("The CMOS option table is empty!!!\n");
- return;
- }
-
- for (bytes_processed = 0; ; )
- { cmos_item = (const struct lb_record *) &q[bytes_processed];
-
- switch (cmos_item->tag)
- { case LB_TAG_OPTION:
- print_option_record((const struct cmos_entries *) cmos_item);
- break;
-
- case LB_TAG_OPTION_ENUM:
- print_enum_record((const struct cmos_enums *) cmos_item);
- break;
-
- case LB_TAG_OPTION_DEFAULTS:
- print_defaults_record((const struct cmos_defaults *) cmos_item);
- break;
-
- default:
- print_unknown_record(cmos_item);
- break;
- }
-
- bytes_processed += cmos_item->size;
-
- if (bytes_processed >= bytes_for_entries)
- break;
-
- printf("\n");
- }
- }
+static void cmos_opt_table_print_fn(const struct lb_record *rec)
+{
+ const struct cmos_option_table *p;
+ const struct lb_record *cmos_item;
+ uint32_t bytes_processed, bytes_for_entries;
+ const char *q;
+
+ p = (const struct cmos_option_table *)rec;
+ q = ((const char *)p) + p->header_length;
+ bytes_for_entries = p->size - p->header_length;
+
+ printf("CMOS option table at physical address 0x%lx:\n"
+ " tag: 0x%x (decimal: %d)\n"
+ " size: 0x%x (decimal: %d)\n"
+ " header_length: 0x%x (decimal: %d)\n\n",
+ vtophys(p), p->tag, p->tag, p->size, p->size, p->header_length,
+ p->header_length);
+
+ if (p->header_length > p->size) {
+ printf
+ ("Header length for CMOS option table is greater than the size "
+ "of the entire table including header!!!\n");
+ return;
+ }
+
+ if (bytes_for_entries == 0) {
+ printf("The CMOS option table is empty!!!\n");
+ return;
+ }
+
+ for (bytes_processed = 0;;) {
+ cmos_item = (const struct lb_record *)&q[bytes_processed];
+
+ switch (cmos_item->tag) {
+ case LB_TAG_OPTION:
+ print_option_record((const struct cmos_entries *)
+ cmos_item);
+ break;
+
+ case LB_TAG_OPTION_ENUM:
+ print_enum_record((const struct cmos_enums *)cmos_item);
+ break;
+
+ case LB_TAG_OPTION_DEFAULTS:
+ print_defaults_record((const struct cmos_defaults *)
+ cmos_item);
+ break;
+
+ default:
+ print_unknown_record(cmos_item);
+ break;
+ }
+
+ bytes_processed += cmos_item->size;
+
+ if (bytes_processed >= bytes_for_entries)
+ break;
+
+ printf("\n");
+ }
+}
/****************************************************************************
* print_option_record
*
* Display "option" record from CMOS option table.
****************************************************************************/
-static void print_option_record (const struct cmos_entries *cmos_entry)
- { static const size_t S_BUFSIZE = 80;
- char s[S_BUFSIZE];
-
- switch (cmos_entry->config)
- { case 'e':
- strcpy(s, "ENUM");
- break;
-
- case 'h':
- strcpy(s, "HEX");
- break;
-
- case 'r':
- strcpy(s, "RESERVED");
- break;
-
- default:
- snprintf(s, S_BUFSIZE, "UNKNOWN: value is 0x%x (decimal: %d)",
- cmos_entry->config, cmos_entry->config);
- break;
- }
-
- printf(" OPTION record at physical address 0x%lx:\n"
- " tag: 0x%x (decimal: %d)\n"
- " size: 0x%x (decimal: %d)\n"
- " bit: 0x%x (decimal: %d)\n"
- " length: 0x%x (decimal: %d)\n"
- " config: %s\n"
- " config_id: 0x%x (decimal: %d)\n"
- " name: %s\n",
- vtophys(cmos_entry), cmos_entry->tag, cmos_entry->tag,
- cmos_entry->size, cmos_entry->size, cmos_entry->bit,
- cmos_entry->bit, cmos_entry->length, cmos_entry->length, s,
- cmos_entry->config_id, cmos_entry->config_id, cmos_entry->name);
- }
+static void print_option_record(const struct cmos_entries *cmos_entry)
+{
+ static const size_t S_BUFSIZE = 80;
+ char s[S_BUFSIZE];
+
+ switch (cmos_entry->config) {
+ case 'e':
+ strcpy(s, "ENUM");
+ break;
+
+ case 'h':
+ strcpy(s, "HEX");
+ break;
+
+ case 'r':
+ strcpy(s, "RESERVED");
+ break;
+
+ default:
+ snprintf(s, S_BUFSIZE, "UNKNOWN: value is 0x%x (decimal: %d)",
+ cmos_entry->config, cmos_entry->config);
+ break;
+ }
+
+ printf(" OPTION record at physical address 0x%lx:\n"
+ " tag: 0x%x (decimal: %d)\n"
+ " size: 0x%x (decimal: %d)\n"
+ " bit: 0x%x (decimal: %d)\n"
+ " length: 0x%x (decimal: %d)\n"
+ " config: %s\n"
+ " config_id: 0x%x (decimal: %d)\n"
+ " name: %s\n",
+ vtophys(cmos_entry), cmos_entry->tag, cmos_entry->tag,
+ cmos_entry->size, cmos_entry->size, cmos_entry->bit,
+ cmos_entry->bit, cmos_entry->length, cmos_entry->length, s,
+ cmos_entry->config_id, cmos_entry->config_id, cmos_entry->name);
+}
/****************************************************************************
* print_enum_record
*
* Display "enum" record from CMOS option table.
****************************************************************************/
-static void print_enum_record (const struct cmos_enums *cmos_enum)
- { printf(" ENUM record at physical address 0x%lx:\n"
- " tag: 0x%x (decimal: %d)\n"
- " size: 0x%x (decimal: %d)\n"
- " config_id: 0x%x (decimal: %d)\n"
- " value: 0x%x (decimal: %d)\n"
- " text: %s\n",
- vtophys(cmos_enum), cmos_enum->tag, cmos_enum->tag, cmos_enum->size,
- cmos_enum->size, cmos_enum->config_id, cmos_enum->config_id,
- cmos_enum->value, cmos_enum->value, cmos_enum->text);
- }
+static void print_enum_record(const struct cmos_enums *cmos_enum)
+{
+ printf(" ENUM record at physical address 0x%lx:\n"
+ " tag: 0x%x (decimal: %d)\n"
+ " size: 0x%x (decimal: %d)\n"
+ " config_id: 0x%x (decimal: %d)\n"
+ " value: 0x%x (decimal: %d)\n"
+ " text: %s\n",
+ vtophys(cmos_enum), cmos_enum->tag, cmos_enum->tag,
+ cmos_enum->size, cmos_enum->size, cmos_enum->config_id,
+ cmos_enum->config_id, cmos_enum->value, cmos_enum->value,
+ cmos_enum->text);
+}
/****************************************************************************
* print_defaults_record
*
* Display "defaults" record from CMOS option table.
****************************************************************************/
-static void print_defaults_record (const struct cmos_defaults *cmos_defaults)
- { printf(" DEFAULTS record at physical address 0x%lx:\n"
- " tag: 0x%x (decimal: %d)\n"
- " size: 0x%x (decimal: %d)\n"
- " name_length: 0x%x (decimal: %d)\n"
- " name: %s\n"
- " default_set:\n",
- vtophys(cmos_defaults), cmos_defaults->tag, cmos_defaults->tag,
- cmos_defaults->size, cmos_defaults->size,
- cmos_defaults->name_length, cmos_defaults->name_length,
- cmos_defaults->name);
- hexdump(cmos_defaults->default_set, CMOS_IMAGE_BUFFER_SIZE,
- vtophys(cmos_defaults->default_set), stdout, &format);
- }
+static void print_defaults_record(const struct cmos_defaults *cmos_defaults)
+{
+ printf(" DEFAULTS record at physical address 0x%lx:\n"
+ " tag: 0x%x (decimal: %d)\n"
+ " size: 0x%x (decimal: %d)\n"
+ " name_length: 0x%x (decimal: %d)\n"
+ " name: %s\n"
+ " default_set:\n",
+ vtophys(cmos_defaults), cmos_defaults->tag, cmos_defaults->tag,
+ cmos_defaults->size, cmos_defaults->size,
+ cmos_defaults->name_length, cmos_defaults->name_length,
+ cmos_defaults->name);
+ hexdump(cmos_defaults->default_set, CMOS_IMAGE_BUFFER_SIZE,
+ vtophys(cmos_defaults->default_set), stdout, &format);
+}
/****************************************************************************
* print_unknown_record
*
* Display record of unknown type from CMOS option table.
****************************************************************************/
-static void print_unknown_record (const struct lb_record *cmos_item)
- { const char *data;
-
- printf(" UNKNOWN record at physical address 0x%lx:\n"
- " tag: 0x%x (decimal: %d)\n"
- " size: 0x%x (decimal: %d)\n"
- " data:\n",
- vtophys(cmos_item), cmos_item->tag, cmos_item->tag,
- cmos_item->size, cmos_item->size);
- data = ((const char *) cmos_item) + sizeof(*cmos_item);
- hexdump(data, cmos_item->size - sizeof(*cmos_item), vtophys(data), stdout,
- &format);
- }
+static void print_unknown_record(const struct lb_record *cmos_item)
+{
+ const char *data;
+
+ printf(" UNKNOWN record at physical address 0x%lx:\n"
+ " tag: 0x%x (decimal: %d)\n"
+ " size: 0x%x (decimal: %d)\n"
+ " data:\n",
+ vtophys(cmos_item), cmos_item->tag, cmos_item->tag,
+ cmos_item->size, cmos_item->size);
+ data = ((const char *)cmos_item) + sizeof(*cmos_item);
+ hexdump(data, cmos_item->size - sizeof(*cmos_item), vtophys(data),
+ stdout, &format);
+}
/****************************************************************************
* option_checksum_print_fn
*
* Display function for 'option_checksum' item of coreboot table.
****************************************************************************/
-static void option_checksum_print_fn (const struct lb_record *rec)
- { struct cmos_checksum *p;
+static void option_checksum_print_fn(const struct lb_record *rec)
+{
+ struct cmos_checksum *p;
- p = (struct cmos_checksum *) rec;
- printf("CMOS checksum from bit %d to bit %d\n"
- "at position %d is type %s.\n",
- p->range_start, p->range_end, p->location,
- (p->type == CHECKSUM_PCBIOS) ? "PC BIOS" : "NONE");
- }
+ p = (struct cmos_checksum *)rec;
+ printf("CMOS checksum from bit %d to bit %d\n"
+ "at position %d is type %s.\n",
+ p->range_start, p->range_end, p->location,
+ (p->type == CHECKSUM_PCBIOS) ? "PC BIOS" : "NONE");
+}
/****************************************************************************
* string_print_fn
* Display function for a generic item of coreboot table that simply
* consists of a string.
****************************************************************************/
-static void string_print_fn (const struct lb_record *rec)
- { const struct lb_string *p;
-
- p = (const struct lb_string *) rec;
- printf("%s\n", p->string);
- }
-
-/****************************************************************************
- * uint64_to_hex_string
- *
- * Convert the 64-bit integer 'n' to its hexadecimal string representation,
- * storing the result in 's'. 's' must point to a buffer at least 19 bytes
- * long. The result is displayed with as many leading zeros as needed to
- * make a 16-digit hex number including a 0x prefix (example: the number 1
- * will be displayed as "0x0000000000000001").
- ****************************************************************************/
-static void uint64_to_hex_string (char str[], uint64_t n)
- { int chars_printed;
+static void string_print_fn(const struct lb_record *rec)
+{
+ const struct lb_string *p;
- str[0] = '0';
- str[1] = 'x';
+ p = (const struct lb_string *)rec;
+ printf("%s\n", p->string);
+}
- /* Print the result right-justified with leading spaces in a
- * 16-character field. */
- chars_printed = sprintf(&str[2], "%016llx", (unsigned long long) n);
- assert(chars_printed == 16);
- }
projects / coreboot.git / blobdiff