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authorChris Douglass <cdouglass.orion@gmail.com>2014-02-26 13:30:13 -0500
committerStefan Reinauer <stefan.reinauer@coreboot.org>2014-02-28 21:10:46 +0100
commit03ce014cfc35a1c51eadec46d30169b2c641e011 (patch)
tree53ba1d2662c051d527d58ed4b944d06bf9f43272 /util/ifdtool
parent970dd9c46672bd194189296977ac8bbf098c139e (diff)
downloadcoreboot-03ce014cfc35a1c51eadec46d30169b2c641e011.tar.xz
util/ifdtool: add option to dump flashrom layout
Dump the Intel Flash Descriptor map in the format expected by flashrom's "layout" option. Example usage: Given a 4MB flash image vpx7654.bin that was generated by Intel's FITC tool for a 6-Series chipset... ./ifdtool --layout l.txt vpx7654.bin cat l.txt 00000000:00000fff fd 00180000:003fffff bios 00001000:0017ffff me 00fff000:00000fff gbe 00fff000:00000fff pd Change-Id: Ib740178ed6935b5f6e1dba1be674303f9f980429 Signed-off-by: Christopher Douglass <cdouglass.orion@gmail.com> Reviewed-on: http://review.coreboot.org/5306 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'util/ifdtool')
-rw-r--r--util/ifdtool/ifdtool.c96
-rw-r--r--util/ifdtool/ifdtool.h7
2 files changed, 90 insertions, 13 deletions
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c
index 9eadc0a33c..b5a0ac2f65 100644
--- a/util/ifdtool/ifdtool.c
+++ b/util/ifdtool/ifdtool.c
@@ -27,6 +27,14 @@
#include <sys/stat.h>
#include "ifdtool.h"
+static const struct region_name region_names[5] = {
+ { "Flash Descriptor", "fd" },
+ { "BIOS", "bios" },
+ { "Intel ME", "me" },
+ { "GbE", "gbe" },
+ { "Platform Data", "pd" }
+};
+
static fdbar_t *find_fd(char *image, int size)
{
int i, found = 0;
@@ -81,26 +89,30 @@ static region_t get_region(frba_t *frba, int region_type)
}
region.size = region.limit - region.base + 1;
+ if (region.size < 0)
+ region.size = 0;
return region;
}
static const char *region_name(int region_type)
{
- static const char *regions[5] = {
- "Flash Descriptor",
- "BIOS",
- "Intel ME",
- "GbE",
- "Platform Data"
- };
+ if (region_type < 0 || region_type > 4) {
+ fprintf(stderr, "Invalid region type.\n");
+ exit (EXIT_FAILURE);
+ }
+
+ return region_names[region_type].pretty;
+}
+static const char *region_name_short(int region_type)
+{
if (region_type < 0 || region_type > 4) {
fprintf(stderr, "Invalid region type.\n");
exit (EXIT_FAILURE);
}
- return regions[region_type];
+ return region_names[region_type].terse;
}
static const char *region_filename(int region_type)
@@ -129,6 +141,13 @@ static void dump_region(int num, frba_t *frba)
region.size < 1 ? "(unused)" : "");
}
+static void dump_region_layout(char *buf, size_t bufsize, int num, frba_t *frba)
+{
+ region_t region = get_region(frba, num);
+ snprintf(buf, bufsize, "%08x:%08x %s\n",
+ region.base, region.limit, region_name_short(num));
+}
+
static void dump_frba(frba_t * frba)
{
printf("Found Region Section\n");
@@ -144,6 +163,30 @@ static void dump_frba(frba_t * frba)
dump_region(4, frba);
}
+static void dump_frba_layout(frba_t * frba, char *layout_fname)
+{
+ char buf[LAYOUT_LINELEN];
+ size_t bufsize = LAYOUT_LINELEN;
+ int i;
+
+ int layout_fd = open(layout_fname, O_WRONLY | O_CREAT | O_TRUNC,
+ S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+ if (layout_fd == -1) {
+ perror("Could not open file");
+ exit(EXIT_FAILURE);
+ }
+
+ for (i = 0; i <= 4; i++) {
+ dump_region_layout(buf, bufsize, i, frba);
+ if (write(layout_fd, buf, strlen(buf)) < 0) {
+ perror("Could not write to file");
+ exit(EXIT_FAILURE);
+ }
+ }
+ close(layout_fd);
+ printf("Wrote layout to %s\n", layout_fname);
+}
+
static void decode_spi_frequency(unsigned int freq)
{
switch (freq) {
@@ -422,6 +465,17 @@ static void dump_fd(char *image, int size)
dump_fmsba((fmsba_t *) (image + (((fdb->flmap2) & 0xff) << 4)));
}
+static void dump_layout(char *image, int size, char *layout_fname)
+{
+ fdbar_t *fdb = find_fd(image, size);
+ if (!fdb)
+ exit(EXIT_FAILURE);
+
+ dump_frba_layout((frba_t *)
+ (image + (((fdb->flmap0 >> 16) & 0xff) << 4)),
+ layout_fname);
+}
+
static void write_regions(char *image, int size)
{
int i;
@@ -608,6 +662,7 @@ static void print_usage(const char *name)
printf("usage: %s [-vhdix?] <filename>\n", name);
printf("\n"
" -d | --dump: dump intel firmware descriptor\n"
+ " -f | --layout <filename> dump regions into a flashrom layout file\n"
" -x | --extract: extract intel fd modules\n"
" -i | --inject <region>:<module> inject file <module> into region <region>\n"
" -s | --spifreq <20|33|50> set the SPI frequency\n"
@@ -626,12 +681,14 @@ int main(int argc, char *argv[])
int opt, option_index = 0;
int mode_dump = 0, mode_extract = 0, mode_inject = 0, mode_spifreq = 0;
int mode_em100 = 0, mode_locked = 0, mode_unlocked = 0;
- char *region_type_string = NULL, *region_fname = NULL;
+ int mode_layout = 0;
+ char *region_type_string = NULL, *region_fname = NULL, *layout_fname = NULL;
int region_type = -1, inputfreq = 0;
enum spi_frequency spifreq = SPI_FREQUENCY_20MHZ;
static struct option long_options[] = {
{"dump", 0, NULL, 'd'},
+ {"layout", 1, NULL, 'f'},
{"extract", 0, NULL, 'x'},
{"inject", 1, NULL, 'i'},
{"spifreq", 1, NULL, 's'},
@@ -643,12 +700,21 @@ int main(int argc, char *argv[])
{0, 0, 0, 0}
};
- while ((opt = getopt_long(argc, argv, "dxi:s:eluvh?",
+ while ((opt = getopt_long(argc, argv, "df:xi:s:eluvh?",
long_options, &option_index)) != EOF) {
switch (opt) {
case 'd':
mode_dump = 1;
break;
+ case 'f':
+ mode_layout = 1;
+ layout_fname = strdup(optarg);
+ if (!layout_fname) {
+ fprintf(stderr, "No layout file specified\n");
+ print_usage(argv[0]);
+ exit(EXIT_FAILURE);
+ }
+ break;
case 'x':
mode_extract = 1;
break;
@@ -733,7 +799,7 @@ int main(int argc, char *argv[])
}
}
- if ((mode_dump + mode_extract + mode_inject +
+ if ((mode_dump + mode_layout + mode_extract + mode_inject +
(mode_spifreq | mode_em100 | mode_unlocked |
mode_locked)) > 1) {
fprintf(stderr, "You may not specify more than one mode.\n\n");
@@ -741,8 +807,9 @@ int main(int argc, char *argv[])
exit(EXIT_FAILURE);
}
- if ((mode_dump + mode_extract + mode_inject + mode_spifreq +
- mode_em100 + mode_locked + mode_unlocked) == 0) {
+ if ((mode_dump + mode_layout + mode_extract + mode_inject +
+ mode_spifreq + mode_em100 + mode_locked +
+ mode_unlocked) == 0) {
fprintf(stderr, "You need to specify a mode.\n\n");
print_usage(argv[0]);
exit(EXIT_FAILURE);
@@ -785,6 +852,9 @@ int main(int argc, char *argv[])
if (mode_dump)
dump_fd(image, size);
+ if (mode_layout)
+ dump_layout(image, size, layout_fname);
+
if (mode_extract)
write_regions(image, size);
diff --git a/util/ifdtool/ifdtool.h b/util/ifdtool/ifdtool.h
index 7537f1d009..ed8f440bd1 100644
--- a/util/ifdtool/ifdtool.h
+++ b/util/ifdtool/ifdtool.h
@@ -20,6 +20,8 @@
#include <stdint.h>
#define IFDTOOL_VERSION "1.1"
+#define LAYOUT_LINELEN 80
+
enum spi_frequency {
SPI_FREQUENCY_20MHZ = 0,
SPI_FREQUENCY_33MHZ = 1,
@@ -109,3 +111,8 @@ typedef struct {
typedef struct {
int base, limit, size;
} region_t;
+
+struct region_name {
+ char *pretty;
+ char *terse;
+};