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nvramtool: Print computed and stored checksum in case of mismatch. 

This is to make it easier to fix checksum issues. Example:
  # nvramtool -a
  [...]
  nvramtool: Warning: Coreboot CMOS checksum is bad.
  Computed checksum: 0xfa. Stored checksum: 0x0
  # nvramtool -c 0xfa

Change-Id: Ifacb68b5693afbdfcb521acd6937e270ead85186
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Reviewed-on: https://review.coreboot.org/13770
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Denis 'GNUtoo' Carikli 2016-02-20 18:49:13 +01:00 committed by Stefan Reinauer
parent 0e92bb010f
commit 9c44b25645
1 changed files with 2 additions and 0 deletions
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2
util/nvramtool/cmos_ops.c
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@ -229,6 +229,8 @@ void cmos_checksum_verify(void)
if (computed != actual) { if (computed != actual) {
fprintf(stderr, "%s: Warning: Coreboot CMOS checksum is bad.\n", fprintf(stderr, "%s: Warning: Coreboot CMOS checksum is bad.\n",
prog_name); prog_name);
fprintf(stderr, "Computed checksum: 0x%x. Stored checksum: 0x%x\n",
computed, actual);
exit(1); exit(1);
} }
} }