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path: root/src/vboot/secdata_tpm.c
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2017-03-23src/vboot: Add valid license headers to all filesMartin Roth
Change-Id: I77d7d6048fee9b378aa04c1a62b830e08f95ec22 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/18407 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Nico Huber <nico.h@gmx.de>
2017-03-14vboot: Allow other platforms to use soft reboot workaroundLee Leahy
Add a Kconfig value to enable other platforms to use the soft reboot workaround. TEST=Build and run on Galileo Gen2 Change-Id: I5a7ebd200229654128d367ecb50647ff69bb5258 Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/18798 Tested-by: Martin Roth <martinroth@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-03-09vboot/tpm2: enable nvmem commits on cr50 when writing firmware secdataAaron Durbin
cr50 by default delays nvmem commits internally from the point of reset to accumulate change state. However, the factory process can put a board into dev mode through the recovery screen. This state is stored in the TPM's nvmem space. When the factory process is complete a disable_dev_request and battery_cutoff_request is performed. This leads to disabling the dev mode in TPM, but the battery is subsequently cut off so the nvmem contents never stick. Therefore, whenever antirollback_write_space_firmware() is called we know there was a change in secdata so request cr50 to immediately enable nvmem commits going forward. This allows state changes to happen immediately. The fallout from this is that when secdata is changed that current boot will take longer because every transaction that writes to TPM nvmem space will perform a write synchronously. All subsequent boots do not have that effect. It should also be noted that this approach to the implementation is a pretty severe layering violation. However, the current TPM APIs don't lend themselves well to extending commands or re-using code outside of the current routines which inherently assume all knowledge of every command (in conflict with vendor commands since those are vendor-specific by definition). BUG=b:35775104 BRANCH=reef TEST=Confirmed disablement of dev mode sticks in the presence of: crossystem disable_dev_request=1; crossystem battery_cutoff_request=1; reboot; Change-Id: I3395db9cbdfea45da1f5cb994c6570978593b944 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/18681 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Tested-by: build bot (Jenkins)
2016-11-16vboot: make TPM factory init sequence more robust.Vadim Bendebury
Currently the code considers the absence of the NVRAM firmware rollback space a a trigger for invoking the TPM factory initialization sequence. Note that the kernel rollback and MRC cache hash spaces are created after the firmware rollback space. This opens an ever so narrow window of opportunity for bricking the device, in case a startup is interrupted after firmware space has been created, but before kernel and MRC hash spaces are created. The suggested solution is to create the firmware space last, and to allow for kernel and MRC cache spaces to exist during TPM factory initialization. BRANCH=none BUG=chrome-os-partner:59654 TEST=odified the code not to create the firmware space, wiped out the TPM NVRAM and booted the device. Observed it create kernel and MRC cache spaces on the first run, and then reporting return code 0x14c for already existing spaces on the following restarts. Verified that the device boots fine in normal and recovery modes and TPM NVRAM spaces are writeable in recovery mode. Change-Id: Id0e772448d6af1340e800ec3b78ec67913aa6289 Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/17398 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-11-11src/vboot: mark factory_initialze_tpm() as staticVadim Bendebury
This function is not used anywhere else in the code. BRANCH=none BUG=none TEST=reef and kevin boards (using tpm1.2 and tpm2.0 respectively) build successfully. Change-Id: Ifcc345ae9c22b25fdcfc2e547e70766021d27e32 Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/17387 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins)
2016-11-10vboot: Add support for recovery hash space in TPMFurquan Shaikh
1. Add a new index for recovery hash space in TPM - 0x100b 2. Add helper functions to read/write/lock recovery hash space in TPM 3. Add Kconfig option that can be selected by mainboards that want to define this space. 4. Lock this new space while jumping from RO to RW. BUG=chrome-os-partner:59355 BRANCH=None TEST=Verified use of recovery hash space on reef. Change-Id: I1cacd54f0a896d0f2af32d4b7c9ae581a918f9bb Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/17273 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-10-13vboot: Stop creating backup space in TPMDaisuke Nojiri
There is no code which uses the backup space in TPM created for vboot nvram. All chromebooks currently supported at the trunk store vboot nvram in flash directly or as a backup. BUG=chrome-os-partner:47915 BRANCH=none TEST=emerge-samus coreboot Change-Id: I9445dfd822826d668b3bfed8ca50dc9386f2b2b0 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 5cee2d54c96ad7952af2a2c1f773ba09c5248f41 Original-Change-Id: Ied0cec0ed489df3b39f6b9afd3941f804557944f Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/395507 Original-Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://review.coreboot.org/16997 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2016-09-30vboot: clear tpm when requiredVadim Bendebury
Function which invoked when TPM clear is requested was left empty, this patch fixes it. BRANCH=gru BUG=chrome-os-partner:57411 TEST=verified on a chromeos device that tpm is in fact cleared when CLEAR_TPM_OWNER_REQUEST is set by userland. Change-Id: I4370792afd512309ecf7f4961ed4d44a04a3e2aa Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-on: https://review.coreboot.org/16805 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-07-28vboot: Separate vboot from chromeosFurquan Shaikh
VBOOT_VERIFY_FIRMWARE should be independent of CHROMEOS. This allows use of verified boot library without having to stick to CHROMEOS. BUG=chrome-os-partner:55639 Change-Id: Ia2c328712caedd230ab295b8a613e3c1ed1532d9 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/15867 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>