diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2015-08-12 11:44:02 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@chromium.org> | 2015-08-19 14:03:35 +0000 |
| commit | 0a31e5975ec04e70f5e3a284a29e121b94088555 (patch) | |
| tree | e6c7d15068170b553e8ae9902bbbd9eaf6c0f1fd /util/ifdtool/ifdtool.c | |
| parent | 1f7fd720c81755144423f2d4062c39cc651adc0a (diff) | |
| download | coreboot-0a31e5975ec04e70f5e3a284a29e121b94088555.tar.xz | |
ifdtool: handle region masks correctly
The get_region() function was using fixed masks for
the base and limit. However, newer descriptors (on
skylake, e.g.) use a 15-bit mask -- not a 12-bit one.
Choose the right mask based on ifd_version.
BUG=chrome-os-partner:43461
BRANCH=None
TEST=Built glados bootimage.
Original-Change-Id: Ibcbfd649a561d36b17ea2cc8fbeb30ffdbbb2c96
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/293250
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Change-Id: I7f2ef9fb8e5b6c7114225fecc2798668d6507ac3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11229
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'util/ifdtool/ifdtool.c')
| -rw-r--r-- | util/ifdtool/ifdtool.c | 41 |
1 files changed, 22 insertions, 19 deletions
diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c index 6856400939..214998c939 100644 --- a/util/ifdtool/ifdtool.c +++ b/util/ifdtool/ifdtool.c @@ -101,52 +101,55 @@ static void check_ifd_version(char *image, int size) static region_t get_region(frba_t *frba, int region_type) { + int base_mask; + int limit_mask; + uint32_t *flreg; region_t region; - region.base = 0, region.limit = 0, region.size = 0; + + if (ifd_version >= IFD_VERSION_2) + base_mask = 0x7fff; + else + base_mask = 0xfff; + + limit_mask = base_mask << 16; switch (region_type) { case 0: - region.base = (frba->flreg0 & 0x00000fff) << 12; - region.limit = ((frba->flreg0 & 0x0fff0000) >> 4) | 0xfff; + flreg = &frba->flreg0; break; case 1: - region.base = (frba->flreg1 & 0x00000fff) << 12; - region.limit = ((frba->flreg1 & 0x0fff0000) >> 4) | 0xfff; + flreg = &frba->flreg1; break; case 2: - region.base = (frba->flreg2 & 0x00000fff) << 12; - region.limit = ((frba->flreg2 & 0x0fff0000) >> 4) | 0xfff; + flreg = &frba->flreg2; break; case 3: - region.base = (frba->flreg3 & 0x00000fff) << 12; - region.limit = ((frba->flreg3 & 0x0fff0000) >> 4) | 0xfff; + flreg = &frba->flreg3; break; case 4: - region.base = (frba->flreg4 & 0x00000fff) << 12; - region.limit = ((frba->flreg4 & 0x0fff0000) >> 4) | 0xfff; + flreg = &frba->flreg4; break; case 5: - region.base = (frba->flreg5 & 0x00000fff) << 12; - region.limit = ((frba->flreg5 & 0x0fff0000) >> 4) | 0xfff; + flreg = &frba->flreg5; break; case 6: - region.base = (frba->flreg6 & 0x00000fff) << 12; - region.limit = ((frba->flreg6 & 0x0fff0000) >> 4) | 0xfff; + flreg = &frba->flreg6; break; case 7: - region.base = (frba->flreg7 & 0x00000fff) << 12; - region.limit = ((frba->flreg7 & 0x0fff0000) >> 4) | 0xfff; + flreg = &frba->flreg7; break; case 8: - region.base = (frba->flreg8 & 0x00000fff) << 12; - region.limit = ((frba->flreg8 & 0x0fff0000) >> 4) | 0xfff; + flreg = &frba->flreg8; break; default: fprintf(stderr, "Invalid region type %d.\n", region_type); exit (EXIT_FAILURE); } + region.base = (*flreg & base_mask) << 12; + region.limit = ((*flreg & limit_mask) >> 4) | 0xfff; region.size = region.limit - region.base + 1; + if (region.size < 0) region.size = 0; |