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authorSubrata Banik <subrata.banik@intel.com>2020-08-26 14:02:01 +0530
committerPatrick Georgi <pgeorgi@google.com>2020-08-31 06:57:29 +0000
commitd52df3cd84ba3e6e1a8e658620478e37f73ff702 (patch)
tree0fcd997f0c09905bce74612dac194ee5ab49a02a /util/ifdtool
parent15da17465279a51f29c7c8b433d82b908b464cc3 (diff)
downloadcoreboot-d52df3cd84ba3e6e1a8e658620478e37f73ff702.tar.xz
util/ifdtool: Skip unused and reserved Flash Region
This patch ensures all unused and reserved flash region sections are not getting listed while using -d option to dump FD. BUG=b:153888802 TEST=List only used flash region section with below command > ifdtool -p tgl -d coreboot.rom Without this CL : Found Region Section FLREG0: 0x00000000 Flash Region 0 (Flash Descriptor): 00000000 - 00000fff FLREG1: 0x1fff0400 Flash Region 1 (BIOS): 00400000 - 01ffffff FLREG2: 0x03ff0001 Flash Region 2 (Intel ME): 00001000 - 003fffff FLREG3: 0x00007fff Flash Region 3 (GbE): 07fff000 - 00000fff (unused) FLREG4: 0x00007fff Flash Region 4 (Platform Data): 07fff000 - 00000fff (unused) FLREG5: 0x00007fff Flash Region 5 (Reserved): 07fff000 - 00000fff (unused) FLREG6: 0x00007fff Flash Region 6 (Reserved): 07fff000 - 00000fff (unused) FLREG7: 0x00007fff Flash Region 7 (Reserved): 07fff000 - 00000fff (unused) FLREG8: 0x00007fff Flash Region 8 (EC): 07fff000 - 00000fff (unused) With this CL : Found Region Section FLREG0: 0x00000000 Flash Region 0 (Flash Descriptor): 00000000 - 00000fff FLREG1: 0x1fff0400 Flash Region 1 (BIOS): 00400000 - 01ffffff FLREG2: 0x03ff0001 Flash Region 2 (Intel ME): 00001000 - 003fffff FLREG3: 0x00007fff Flash Region 3 (GbE): 07fff000 - 00000fff (unused) FLREG4: 0x00007fff Flash Region 4 (Platform Data): 07fff000 - 00000fff (unused) FLREG8: 0x00007fff Flash Region 8 (EC): 07fff000 - 00000fff (unused) Signed-off-by: Subrata Banik <subrata.banik@intel.com> Change-Id: I900a29d8968bd61d66c04012e60e1ba4baff786d Reviewed-on: https://review.coreboot.org/c/coreboot/+/44813 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'util/ifdtool')
-rw-r--r--util/ifdtool/ifdtool.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c
index 2835ba838b..68e5b7bbd5 100644
--- a/util/ifdtool/ifdtool.c
+++ b/util/ifdtool/ifdtool.c
@@ -373,8 +373,14 @@ static void dump_region_layout(char *buf, size_t bufsize, unsigned int num,
static void dump_frba(const frba_t *frba)
{
unsigned int i;
+ region_t region;
printf("Found Region Section\n");
for (i = 0; i < max_regions; i++) {
+ region = get_region(frba, i);
+ /* Skip unused & reserved Flash Region */
+ if (region.size < 1 && !strcmp(region_name(i), "Reserved"))
+ continue;
+
printf("FLREG%u: 0x%08x\n", i, frba->flreg[i]);
dump_region(i, frba);
}