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Diffstat (limited to 'util/ifdtool/ifdtool.c')
-rw-r--r--util/ifdtool/ifdtool.c108
1 files changed, 95 insertions, 13 deletions
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c
index 1a8bf85059..7655fd4dce 100644
--- a/util/ifdtool/ifdtool.c
+++ b/util/ifdtool/ifdtool.c
@@ -200,12 +200,12 @@ static void dump_fcba(fcba_t * fcba)
decode_component_density(fcba->flcomp & 7);
printf("\n");
printf("FLILL 0x%08x\n", fcba->flill);
- printf("FLPB 0x%08x\n", fcba->flpb);
+ printf("FLPB 0x%08x\n\n", fcba->flpb);
}
static void dump_fpsba(fpsba_t * fpsba)
{
- printf("\nFound PCH Strap Section\n");
+ printf("Found PCH Strap Section\n");
printf("PCHSTRP0: 0x%08x\n", fpsba->pchstrp0);
printf("PCHSTRP1: 0x%08x\n", fpsba->pchstrp1);
printf("PCHSTRP2: 0x%08x\n", fpsba->pchstrp2);
@@ -221,20 +221,51 @@ static void dump_fpsba(fpsba_t * fpsba)
printf("PCHSTRP12: 0x%08x\n", fpsba->pchstrp12);
printf("PCHSTRP13: 0x%08x\n", fpsba->pchstrp13);
printf("PCHSTRP14: 0x%08x\n", fpsba->pchstrp14);
- printf("PCHSTRP15: 0x%08x\n", fpsba->pchstrp15);
+ printf("PCHSTRP15: 0x%08x\n\n", fpsba->pchstrp15);
+}
+
+static void decode_flmstr(uint32_t flmstr)
+{
+ printf(" Platform Data Region Write Access: %s\n",
+ (flmstr & (1 << 28)) ? "enabled" : "disabled");
+ printf(" GbE Region Write Access: %s\n",
+ (flmstr & (1 << 27)) ? "enabled" : "disabled");
+ printf(" Intel ME Region Write Access: %s\n",
+ (flmstr & (1 << 26)) ? "enabled" : "disabled");
+ printf(" Host CPU/BIOS Region Write Access: %s\n",
+ (flmstr & (1 << 25)) ? "enabled" : "disabled");
+ printf(" Flash Descriptor Write Access: %s\n",
+ (flmstr & (1 << 24)) ? "enabled" : "disabled");
+
+ printf(" Platform Data Region Read Access: %s\n",
+ (flmstr & (1 << 20)) ? "enabled" : "disabled");
+ printf(" GbE Region Read Access: %s\n",
+ (flmstr & (1 << 19)) ? "enabled" : "disabled");
+ printf(" Intel ME Region Read Access: %s\n",
+ (flmstr & (1 << 18)) ? "enabled" : "disabled");
+ printf(" Host CPU/BIOS Region Read Access: %s\n",
+ (flmstr & (1 << 17)) ? "enabled" : "disabled");
+ printf(" Flash Descriptor Read Access: %s\n",
+ (flmstr & (1 << 16)) ? "enabled" : "disabled");
+
+ printf(" Requester ID: 0x%04x\n\n",
+ flmstr & 0xffff);
}
static void dump_fmba(fmba_t * fmba)
{
- printf("\nFound Master Section\n");
- printf("FLMSTR1: 0x%08x\n", fmba->flmstr1);
- printf("FLMSTR2: 0x%08x\n", fmba->flmstr2);
- printf("FLMSTR3: 0x%08x\n", fmba->flmstr3);
+ printf("Found Master Section\n");
+ printf("FLMSTR1: 0x%08x (Host CPU/BIOS)\n", fmba->flmstr1);
+ decode_flmstr(fmba->flmstr1);
+ printf("FLMSTR2: 0x%08x (Intel ME)\n", fmba->flmstr2);
+ decode_flmstr(fmba->flmstr2);
+ printf("FLMSTR3: 0x%08x (GbE)\n", fmba->flmstr3);
+ decode_flmstr(fmba->flmstr3);
}
static void dump_fmsba(fmsba_t * fmsba)
{
- printf("\nFound Processor Strap Section\n");
+ printf("Found Processor Strap Section\n");
printf("????: 0x%08x\n", fmsba->data[0]);
printf("????: 0x%08x\n", fmsba->data[1]);
printf("????: 0x%08x\n", fmsba->data[2]);
@@ -348,6 +379,31 @@ static void set_em100_mode(char *filename, char *image, int size)
set_spi_frequency(filename, image, size, SPI_FREQUENCY_20MHZ);
}
+static void lock_descriptor(char *filename, char *image, int size)
+{
+ fdbar_t *fdb = find_fd(image, size);
+ fmba_t *fmba = (fmba_t *) (image + (((fdb->flmap1) & 0xff) << 4));
+ /* TODO: Dynamically take Platform Data Region and GbE Region
+ * into regard.
+ */
+ fmba->flmstr1 = 0x0a0b0000;
+ fmba->flmstr2 = 0x0c0d0000;
+ fmba->flmstr3 = 0x08080118;
+
+ write_image(filename, image, size);
+}
+
+static void unlock_descriptor(char *filename, char *image, int size)
+{
+ fdbar_t *fdb = find_fd(image, size);
+ fmba_t *fmba = (fmba_t *) (image + (((fdb->flmap1) & 0xff) << 4));
+ fmba->flmstr1 = 0xffff0000;
+ fmba->flmstr2 = 0xffff0000;
+ fmba->flmstr3 = 0x08080118;
+
+ write_image(filename, image, size);
+}
+
void inject_region(char *filename, char *image, int size, int region_type,
char *region_fname)
{
@@ -442,6 +498,8 @@ static void print_usage(const char *name)
" -s | --spifreq <20|33|50> set the SPI frequency\n"
" -e | --em100 set SPI frequency to 20MHz and disable\n"
" Dual Output Fast Read Support\n"
+ " -l | --lock Lock firmware descriptor and ME region\n"
+ " -u | --unlock Unlock firmware descriptor and ME region\n"
" -v | --version: print the version\n"
" -h | --help: print this help\n\n"
"<region> is one of Descriptor, BIOS, ME, GbE, Platform\n"
@@ -452,7 +510,7 @@ 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;
+ int mode_em100 = 0, mode_locked = 0, mode_unlocked = 0;
char *region_type_string = NULL, *region_fname = NULL;
int region_type = -1, inputfreq = 0;
enum spi_frequency spifreq = SPI_FREQUENCY_20MHZ;
@@ -463,12 +521,14 @@ int main(int argc, char *argv[])
{"inject", 1, NULL, 'i'},
{"spifreq", 1, NULL, 's'},
{"em100", 0, NULL, 'e'},
+ {"lock", 0, NULL, 'l'},
+ {"unlock", 0, NULL, 'u'},
{"version", 0, NULL, 'v'},
{"help", 0, NULL, 'h'},
{0, 0, 0, 0}
};
- while ((opt = getopt_long(argc, argv, "dxi:s:evh?",
+ while ((opt = getopt_long(argc, argv, "dxi:s:eluvh?",
long_options, &option_index)) != EOF) {
switch (opt) {
case 'd':
@@ -531,6 +591,20 @@ int main(int argc, char *argv[])
case 'e':
mode_em100 = 1;
break;
+ case 'l':
+ mode_locked = 1;
+ if (mode_unlocked == 1) {
+ fprintf(stderr, "Locking/Unlocking FD and ME are mutually exclusive\n");
+ exit(EXIT_FAILURE);
+ }
+ break;
+ case 'u':
+ mode_unlocked = 1;
+ if (mode_locked == 1) {
+ fprintf(stderr, "Locking/Unlocking FD and ME are mutually exclusive\n");
+ exit(EXIT_FAILURE);
+ }
+ break;
case 'v':
print_version();
exit(EXIT_SUCCESS);
@@ -544,14 +618,16 @@ int main(int argc, char *argv[])
}
}
- if ((mode_dump + mode_extract + mode_inject + mode_spifreq) > 1) {
- fprintf(stderr, "Only one mode allowed.\n\n");
+ if ((mode_dump + 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");
print_usage(argv[0]);
exit(EXIT_FAILURE);
}
if ((mode_dump + mode_extract + mode_inject + mode_spifreq +
- mode_em100) == 0) {
+ mode_em100 + mode_locked + mode_unlocked) == 0) {
fprintf(stderr, "You need to specify a mode.\n\n");
print_usage(argv[0]);
exit(EXIT_FAILURE);
@@ -607,6 +683,12 @@ int main(int argc, char *argv[])
if (mode_em100)
set_em100_mode(filename, image, size);
+ if(mode_locked)
+ lock_descriptor(filename, image, size);
+
+ if (mode_unlocked)
+ unlock_descriptor(filename, image, size);
+
free(image);
return 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 08:40:08 +0000