Christopher Douglass (cdouglass.orion@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/5306
-gerrit
commit d6c514c05327e5399e90a95e95d5dbdccd7841d5 Author: Chris Douglass cdouglass.orion@gmail.com Date: Wed Feb 26 13:30:13 2014 -0500
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 --- util/ifdtool/ifdtool.c | 96 +++++++++++++++++++++++++++++++++++++++++++------- util/ifdtool/ifdtool.h | 7 ++++ 2 files changed, 90 insertions(+), 13 deletions(-)
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c index 9eadc0a..b5a0ac2 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 7537f1d..ed8f440 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; +};