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10 Commits

Author SHA1 Message Date
Kees Cook
946370d012 tpmc: add PCR reading function 
Add ability to report a single PCR value via the tpmc utility. Using
/sys/devices/platform/tpm_tis/pcrs is too slow, since it reads all
PCRs before returning. Anything wanting to read PCR0 on a time-critical
path needs maximum speed.

BUG=chromium-os:22172
TEST=install and test x86-alex.

Change-Id: I2d450961d33fa314d54b909135a74aa756279ec6
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/13891
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
 2012-01-09 15:00:52 -08:00
Gaurav Shah
ac6d56033f Fix "tpmc help" description of pplock 
BUG=none
TEST=none

Change-Id: I2a976f6e876ff7751a746ea89211795ab454e65d
Reviewed-on: http://gerrit.chromium.org/gerrit/4458
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Tested-by: Gaurav Shah <gauravsh@chromium.org>
 2011-07-21 11:13:56 -07:00
Luigi Semenzato
54992f9d33 Added TPM_SaveState command. 
Change-Id: If7b6ef3cba733b74ba13db0871e6ac554d0d84ef

BUG=chromium-os:433
TEST=none

Review URL: http://codereview.chromium.org/6696043
 2011-03-16 10:56:48 -07:00
Luigi Semenzato
d903cc8333 Add resume command to tpmc. 
Change-Id: Ie888a966d9914d0f3396c8fa5139fdddbdb76ff0

BUG=none
TEST=compiled and ran the program

Review URL: http://codereview.chromium.org/4185003
 2010-10-27 09:42:51 -07:00
Luigi Semenzato
a8cba996b7 Utility to measure the available size of a TPM NVRAM. 
Also change tpmc to return the TPM error code, or 255.

Change-Id: Ie5fc107ff50efd4480c2a47b91f3b8a93b4f95e3

BUG=none
TEST=ran it on a TPM

Review URL: http://codereview.chromium.org/3479003
 2010-09-21 14:12:15 -07:00
Luigi Semenzato
1d83dd1ba5 Add a command to enable the physical presence command. 
Change-Id: Id8b6ac3c75d1ee34237cde8adde55cea33b25889

Review URL: http://codereview.chromium.org/3163045
 2010-08-30 10:23:43 -07:00
Luigi Semenzato
5896b9664d Added new commands and reactivated full rebuild after fixing for ARM ebuild. 
Review URL: http://codereview.chromium.org/3116025

Change-Id: Ideb82562f6b1c3ce5cd9e0b79de250d0a7bd976e
 2010-08-25 07:16:03 -07:00
Luigi Semenzato
c91e2390cb Add some commands to tpmc. 
Review URL: http://codereview.chromium.org/3165023
 2010-08-17 14:31:52 -07:00
Luigi Semenzato
56cec581bb Add clear command. 
Review URL: http://codereview.chromium.org/3167004
 2010-08-10 15:09:37 -07:00
Luigi Semenzato
e72291c636 Command-line utility to execute TPM commands bypassing the TSS stack. 
Review URL: http://codereview.chromium.org/3149001
 2010-08-10 09:46:09 -07:00