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2024-03-28security/tpm: resolve conflicts in TSS implementationsSergii Dmytruk
No functional changes. Refactor code such that there won't be any compiler or linker errors if TSS 1.2 and TSS 2.0 were both compiled in. One might want to support both TPM families for example if TPM is pluggable, while currently one has to reflash firmware along with switching TPM device. Change-Id: Ia0ea5a917c46ada9fc3274f17240e12bca98db6a Ticket: https://ticket.coreboot.org/issues/433 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69160 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2024-03-28security/tpm: make tis_probe() return tpm_familySergii Dmytruk
Via an out parameter. This is needed to be able to dynamically pick TSS implementation based on the information discovered on probing. Change-Id: I5006e0cdfef76ff79ce9e1cf280fcd5515ae01b0 Ticket: https://ticket.coreboot.org/issues/433 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69159 Reviewed-by: Martin L Roth <gaumless@gmail.com> Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Christian Walter <christian.walter@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2024-01-24device, security: Rename Makefiles from .inc to .mkMartin Roth
The .inc suffix is confusing to various tools as it's not specific to Makefiles. This means that editors don't recognize the files, and don't open them with highlighting and any other specific editor functionality. This issue is also seen in the release notes generation script where Makefiles get renamed before running cloc. Signed-off-by: Martin Roth <gaumless@gmail.com> Change-Id: I41f8a9b5d1bdb647a915da1a5e95161b2e34df28 Reviewed-on: https://review.coreboot.org/c/coreboot/+/80082 Reviewed-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com> Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-12-31security/tpm: Retrieve factory configuration for device w/ Google TPMSubrata Banik
This patch enables retrieval of factory configuration data from Google TPM devices (both Cr50 and Ti50). This patch utilizes vendor-specific command TPM2_CR50_SUB_CMD_GET_FACTORY_CONFIG (68). The factory config space is a 64-bit, one-time programmable. For the unprovisioned one, the read will be 0x0. BUG=b:317880956 TEST=Able to retrieve the factory config from google/screebo. Change-Id: Ifd0e850770152a03aa46d7f8bbb76f7520a59081 Signed-off-by: Subrata Banik <subratabanik@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/79736 Reviewed-by: Kapil Porwal <kapilporwal@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-11-13security/tpm/: turn tis_{init,open} into tis_probeSergii Dmytruk
init() was always followed by open() and after successful initialization we only need send-receive function which is now returned by tis_probe() on success, thus further reducing number of functions to export from drivers. This also removes check for opening TIS twice that seems to have no value. Change-Id: I52ad8d69d50d449f031c36b15bf70ef07986946c Ticket: https://ticket.coreboot.org/issues/433 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/76954 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-09-28treewide: convert to tpm_result_tJon Murphy
Convert TPM functions to return TPM error codes(referred to as tpm_result_t) values to match the TCG standard. BUG=b:296439237 TEST=build and boot to Skyrim BRANCH=None Change-Id: Ifdf9ff6c2a1f9b938dbb04d245799391115eb6b1 Signed-off-by: Jon Murphy <jpmurphy@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/77666 Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-09-28treewide: convert to %#x hex printsJon Murphy
Convert hex print values to use the %#x qualifier to print 0x{value}. BUG=b:296439237 TEST=build and boot to Skyrim BRANCH=None Change-Id: I0d1ac4b920530635fb758c5165a6a99c11b414c8 Signed-off-by: Jon Murphy <jpmurphy@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/78183 Reviewed-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-09-25treewide: Adopt TCG standard namingJon Murphy
Adopt TCG standard naming and definitions for TPM Return codes. BUG=b:296439237 TEST=Build and boot to OS on skyrim BRANCH=None Change-Id: I60755723262ec205a4c134948b0250aac4974d35 Signed-off-by: Jon Murphy <jpmurphy@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/77665 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-09-22security/tpm: Remove unnecessary tss_common.hJon Murphy
Remove the unnecessary tss_common.h header from the repo. tss_errors.h is a more appropriate place for the TPM_SUCCESS value, and the other define is only used by tpm_common.c and can be placed there. BUG=b:296439237 TEST=Builds Change-Id: I99cf90f244a75c1eeab5e9e1500e05c24ae0a8e5 Signed-off-by: Jon Murphy <jpmurphy@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/78033 Reviewed-by: Tim Van Patten <timvp@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2023-09-18drivers/tpm: Make temp test value naming consistentJon Murphy
Make naming convention consistent across all functions return values. BUG=b:296439237 TEST=Boot to OS on Skyrim BRANCH=None Change-Id: If86805b39048800276ab90b7687644ec2a0d4bee Signed-off-by: Jon Murphy <jpmurphy@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/77536 Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
2023-09-14vc/google/chromeos: Move clear_ec_ap_idle() to common codeDerek Huang
Previously the clear_ec_ap_idle() is implemented in cr50_enable_update.c and be called in the file. Move it to common code so that it can be called in cse_board_reset.c TEST=emerge-brask coreboot Change-Id: I2dbe41b01e70f7259f75d967e6df694a3e0fac23 Signed-off-by: Derek Huang <derekhuang@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/77631 Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Reka Norman <rekanorman@chromium.org>
2023-08-14commonlib,console,nb,sb,security: Add SPDX licenses to MakefilesMartin Roth
To help identify the licenses of the various files contained in the coreboot source, we've added SPDX headers to the top of all of the .c and .h files. This extends that practice to Makefiles. Any file in the coreboot project without a specific license is bound to the license of the overall coreboot project, GPL Version 2. This patch adds the GPL V2 license identifier to the top of all makefiles in the commonlib, console, northbridge, security, and southbridge directories that don't already have an SPDX license line at the top. Signed-off-by: Martin Roth <gaumless@gmail.com> Change-Id: I02804a10d0b0355e41271a035613d9f3dfb122f8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/68985 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de> Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
2023-01-10chromeos/cr50_enable_update.c: Clear EC AP_IDLE flagDerek Huang
When AP boots up after Cr50 firmware update and reboot, AP finds that Cr50 reset is required for Cr50 to pick the new firmware so it trigger Cr50 reset and power off the system, AP expects system will power on automatically after Cr50 reset. However this is not the case for Chromebox, Chromebox EC set AP_IDLE flag when system is shutting down, when AP_IDLE flag is set in EC, the system stays at S5/G3 and wait for power button presssend. It cause an issue in factory that the operator needs to press power button to power on the DUT after Cr50 firmware update. This patch sends EC command to direct EC to clear AP_IDLE flag after AP shutdown so AP can boot up when Cr50 reset. BUG=b:261119366 BRANCH=firmware-brya-14505.B TEST=DUT boots up after Cr50 firmware update in factory test flow Change-Id: If97ffbe65f4783f17f4747a87b0bf89a2b021a3b Signed-off-by: Derek Huang <derekhuang@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/70773 Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-12-23Revert "security/tpm/: turn tis_{init,open} into tis_probe"Sergii Dmytruk
This reverts commit d43154486d27323f64334203e9bc8baf08af6845. From CB:68991: This causes CraterLake boot up process to die. Investigation in progress. Change-Id: I4a6c11b0e638a891108fe230bdaea92d5fbca020 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/71205 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Tested-by: siemens-bot Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2022-12-21security/tpm/: turn tis_{init,open} into tis_probeSergii Dmytruk
Init was always followed by open and after successful initialization we need only send-receive function, which is now returned by tis_probe on success further reducing number of functions to export from drivers. Change-Id: Ib4ce35ada24e3959ea1a518c29d431b4ae123809 Ticket: https://ticket.coreboot.org/issues/433 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68991 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-11-22security: Remove unnecessary space after castsElyes Haouas
Change-Id: Ibd41382d0e0ef58498ac925dc9e10b54a76a798a Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69800 Reviewed-by: Yu-Ping Wu <yupingso@google.com> Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-11-12security/tpm: improve tlcl_extend() signatureSergii Dmytruk
Until now tcg-2.0/tss.c was just assuming certain buffer size and hash algorithm. Change it to accept digest type, which the call sites know. Also drop `uint8_t *out_digest` parameter which was always `NULL` and was handled only by tcg-1.2 code. Change-Id: I944302b502e3424c5041b17c713a867b0fc535c4 Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/68745 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
2022-09-30drivers/crb: Add SMBIOS hook to generate type 43 TPM DeviceMichał Żygowski
Example for Alder Lake PTT: Handle 0x004C, DMI type 43, 31 bytes TPM Device Vendor ID: INTC Specification Version: 2.0 Firmware Revision: 600.18 Description: Intel iTPM Characteristics: TPM Device characteristics not supported OEM-specific Information: 0x00000000 TEST=Execute dmidecode and see the type 43 is populated with PTT on MSI PRO Z690-A WIFI DDR4 Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com> Change-Id: I05289f98969bd431017aff1aa77be5806d6f1838 Reviewed-on: https://review.coreboot.org/c/coreboot/+/64049 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Christian Walter <christian.walter@9elements.com>
2022-09-15src/security: Use "if (!ptr)" in preference to "if (ptr == NULL)"Elyes Haouas
Signed-off-by: Elyes Haouas <ehaouas@noos.fr> Change-Id: I3def65c016015d8213824e6b8561d8a67b6d5cf0 Reviewed-on: https://review.coreboot.org/c/coreboot/+/67579 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2022-08-29drivers/i2c/tpm: Remove TI50_FIRMWARE_VERSION_NOT_SUPPORTEDReka Norman
This workaround was added since reading the firmware version on Ti50 versions < 0.0.15 will cause the Ti50 to become unresponsive. No one is using Ti50 this old anymore, so remove the workaround. BUG=b:224650720,b:236911319 TEST=Boot to OS on nivviks with Ti50 0.22.4. Check the log contains the firmware version: [INFO ] Firmware version: Ti50/D3C1 RO_B:0.0.26/- RW_B:0.22.4/ti50_common:v095c Change-Id: I3628b799e436a80d0512dabd356c4b2566ed600a Signed-off-by: Reka Norman <rekanorman@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/67138 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kangheui Won <khwon@chromium.org> Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Kapil Porwal <kapilporwal@google.com>
2022-08-21tpm: Correct TI50_FIRMWARE_VERSION_NOT_SUPPORTED help textYu-Ping Wu
Reading firmware_version register is supported on Ti50 version 0.22.4. Therefore correct the help text of the Kconfig option TI50_FIRMWARE_VERSION_NOT_SUPPORTED. Also change the message level to BIOS_WARNING. BUG=b:234533588 TEST=emerge-corsola coreboot BRANCH=none Change-Id: I66a0ef896c9dc4cd0f586555a55dbcd1cfd863f9 Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/66906 Reviewed-by: Yidi Lin <yidilin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Andrey Pronin <apronin@google.com> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2022-06-08drivers/tpm/cr50: Add TPM IRQ timeout Kconfig optionYu-Ping Wu
The current 10ms timeout for SPI TPM IRQ is not enough for platforms using ti50 (such as corsola). Therefore, introduce a new Kconfig option 'GOOGLE_TPM_IRQ_TIMEOUT_MS'. For platforms using cr50, we need to support legacy pre-ready-IRQ cr50 factory images during the initial boot, so the timeout remains 100ms for I2C TPM and 10ms for SPI TPM. For all the other platforms using ti50, the default timeout is increased to 750ms, as suggested by the ti50 team (apronin@google.com). BUG=b:232327704 TEST=emerge-corsola coreboot BRANCH=none Change-Id: I8dbb919e4a421a99a994913613a33738a49f5956 Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64412 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2022-05-16drivers/i2c/tpm: Work around missing firmware_version in Ti50 < 0.0.15Reka Norman
Ti50 firmware versions below 0.0.15 don't support the firmware_version register and trying to access it causes I2C errors. Some nissa boards are still using Ti50 0.0.12, so add a workaround Kconfig to skip reading the firmware version and select it for nissa. The firmware version is only read to print it to the console, so it's fine to skip this. This workaround will be removed once all ODM stocks are updated to 0.0.15 or higher. A similar workaround Kconfig was added in CB:63011 then removed in CB:63158 which added support for separate handling of Cr50 and Ti50. But we actually still need this workaround until all Ti50 stocks are upgraded to 0.0.15 or higher. BUG=b:224650720 TEST=Boot to OS on nereid with Ti50 0.0.14 Change-Id: Ia30d44ac231c42eba3ffb1cb1e6d83bb6593f926 Signed-off-by: Reka Norman <rekanorman@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/64202 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2022-04-21tpm: Refactor TPM Kconfig dimensionsJes B. Klinke
Break TPM related Kconfig into the following dimensions: TPM transport support: config CRB_TPM config I2C_TPM config SPI_TPM config MEMORY_MAPPED_TPM (new) TPM brand, not defining any of these is valid, and result in "generic" support: config TPM_ATMEL (new) config TPM_GOOGLE (new) config TPM_GOOGLE_CR50 (new, implies TPM_GOOGLE) config TPM_GOOGLE_TI50 (new to be used later, implies TPM_GOOGLE) What protocol the TPM chip supports: config MAINBOARD_HAS_TPM1 config MAINBOARD_HAS_TPM2 What the user chooses to compile (restricted by the above): config NO_TPM config TPM1 config TPM2 The following Kconfigs will be replaced as indicated: config TPM_CR50 -> TPM_GOOGLE config MAINBOARD_HAS_CRB_TPM -> CRB_TPM config MAINBOARD_HAS_I2C_TPM_ATMEL -> I2C_TPM && TPM_ATMEL config MAINBOARD_HAS_I2C_TPM_CR50 -> I2C_TPM && TPM_GOOGLE config MAINBOARD_HAS_I2C_TPM_GENERIC -> I2C_TPM && !TPM_GOOGLE && !TPM_ATMEL config MAINBOARD_HAS_LPC_TPM -> MEMORY_MAPPED_TPM config MAINBOARD_HAS_SPI_TPM -> SPI_TPM && !TPM_GOOGLE && !TPM_ATMEL config MAINBOARD_HAS_SPI_TPM_CR50 -> SPI_TPM && TPM_GOOGLE Signed-off-by: Jes B. Klinke <jbk@chromium.org> Change-Id: I4656b2b90363b8dfd008dc281ad591862fe2cc9e Reviewed-on: https://review.coreboot.org/c/coreboot/+/63424 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2022-02-07treewide: Remove "ERROR: "/"WARN: " prefixes from log messagesJulius Werner
Now that the console system itself will clearly differentiate loglevels, it is no longer necessary to explicitly add "ERROR: " in front of every BIOS_ERR message to help it stand out more (and allow automated tooling to grep for it). Removing all these extra .rodata characters should save us a nice little amount of binary size. This patch was created by running find src/ -type f -exec perl -0777 -pi -e 's/printk\(\s*BIOS_ERR,\s*"ERROR: /printk\(BIOS_ERR, "/gi' '{}' ';' and doing some cursory review/cleanup on the result. Then doing the same thing for BIOS_WARN with 's/printk\(\s*BIOS_WARNING,\s*"WARN(ING)?: /printk\(BIOS_WARNING, "/gi' Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: I3d0573acb23d2df53db6813cb1a5fc31b5357db8 Reviewed-on: https://review.coreboot.org/c/coreboot/+/61309 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Lance Zhao Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
2021-11-17security/tpm/tcg-2.0: Handle TPM_RC_NV_RANGE return codeKarthikeyan Ramasubramanian
As per the TPM spec, if offset and the size field of data add to a value that is greater than the dataSize field of the NV Index referenced by nvIndex, the TPM shall return an error (TPM_RC_NV_RANGE). Handle the TPM error and map it to an appropriate vboot error. BUG=None TEST=Build and boot to OS in Guybrush. Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Change-Id: I8b403e2f33cc1368065cc21f73df1102695f73eb Reviewed-on: https://review.coreboot.org/c/coreboot/+/59134 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-10-05src/mainboard to src/security: Fix spelling errorsMartin Roth
These issues were found and fixed by codespell, a useful tool for finding spelling errors. Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: Ie34003a9fdfe9f3b1b8ec0789aeca8b9435c9c79 Reviewed-on: https://review.coreboot.org/c/coreboot/+/58081 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-06-15tpm/tss: Remove local variablePatrick Georgi
Depending on how the "middle-end" (yes, the gcc developers are serious about that) optimizer ends up mangling the code, there may or may not be a complaint about x being used uninitialized when it's clearly not used at all. So instead, why keep x in the first place? memcpy(foo, NULL, 0) is the same as memcpy(foo, some_uninitialized_variable, 0) in that it does nothing. Change-Id: Ib0a97c3e3fd1a2a6aff37da63376373c88ac595d Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/55499 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-06-10security/tpm/tss/tcg-2.0: Add `tlcl_set_bits()`Aseda Aboagye
This commit adds support for the TPM2_NV_SetBits command to the TLCL. This command is used to set bits in an NV index that was created as a bit field. Any number of bits from 0 to 64 may be set. The contents of bits are ORed with the current contents of the NV index. The following is an excerpt from lalala undergoing TPM factory initialization which exercises this function in a child commit: ``` antirollback_read_space_firmware():566: TPM: Not initialized yet. factory_initialize_tpm():530: TPM: factory initialization tlcl_self_test_full: response is 0 tlcl_force_clear: response is 0 tlcl_define_space: response is 14c define_space():197: define_space: kernel space already exists tlcl_write: response is 0 tlcl_define_space: response is 14c define_space():197: define_space: RO MRC Hash space already exists tlcl_write: response is 0 tlcl_define_space: response is 14c define_space():197: define_space: FWMP space already exists tlcl_write: response is 0 tlcl_define_space: response is 0 tlcl_write: response is 0 tlcl_define_space: response is 0 tlcl_write: response is 0 tlcl_define_space: response is 0 tlcl_set_bits: response is 0 tlcl_define_space: response is 0 tlcl_write: response is 0 factory_initialize_tpm():553: TPM: factory initialization successful ``` BUG=b:184676425 BRANCH=None TEST=With other changes, create a NVMEM space in a TPM 2.0 TPM with the bits attribute. Issue the command and verify that the TPM command succeeds. Signed-off-by: Aseda Aboagye <aaboagye@google.com> Change-Id: I6ca6376bb9f7ed8fd1167c2c80f1e8d3c3f46653 Reviewed-on: https://review.coreboot.org/c/coreboot/+/55241 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Bob Moragues <moragues@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-05-27tpm: Remove USER_TPMx options, make TPM1/TPM2 menuconfig visibleJulius Werner
We would like to have an easy way to completely disable TPM support on a board. For boards that don't pre-select a TPM protocol via the MAINBOARD_HAS_TPMx options, this is already possible with the USER_NO_TPM option. In order to make this available for all boards, this patch just removes the whole USER_TPMx option group and directly makes the TPM1 and TPM2 options visible to menuconfig. The MAINBOARD_HAS_TPMx options can still be used to select defaults and to prevent selection of a protocol that the TPM is known to not support, but the NO_TPM option always remains available. Also fix some mainboards that selected TPM2 directly, which they're not supposed to do (that's what MAINBOARD_HAS_TPM2 is for), and add a missing dependency to TPM_CR50 so it is set correctly for a NO_TPM scenario. Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: Ib0a73da3c42fa4e8deffecb53f29ee38cbb51a93 Reviewed-on: https://review.coreboot.org/c/coreboot/+/54641 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Christian Walter <christian.walter@9elements.com>
2021-05-13src/security/tpm: Deal with zero length tlcl writesPatrick Georgi
While memcpy(foo, bar, 0) should be a no-op, that's hard to prove for a compiler and so gcc 11.1 complains about the use of an uninitialized "bar" even though it's harmless in this case. Change-Id: Idbffa508c2cd68790efbc0b4ab97ae1b4d85ad51 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/54095 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jacob Garber <jgarber1@ualberta.ca> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-03-05security/tpm/tss/vendor/cr50: Introduce vendor sub-command to reset ECKarthikeyan Ramasubramanian
Add marshaling and unmarshaling support for cr50 vendor sub-command to reset EC and a interface function to exchange the same. BUG=b:181051734 TEST=Build and boot to OS in drawlat. Ensure that when the command is issued, EC reset is triggered. Change-Id: I46063678511d27fea5eabbd12fc3af0b1df68143 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51164 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2021-02-09security/tpm/tss/vendor/cr50/cr50.c: Fix typoElyes HAOUAS
Change-Id: I71c0b3b28979053b73f22f280ff11ba19ee0eee2 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/50372 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2021-01-19security/tpm/tss/tcg-1.2/tss.c: Use __func__Elyes HAOUAS
Change-Id: I51e7111b17274b8951925d1c13e2f1386778b93a Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49557 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Christian Walter <christian.walter@9elements.com>
2020-09-21src/security: Drop unneeded empty linesElyes HAOUAS
Change-Id: Icb6057ac73fcc038981ef95a648420ac00b3c106 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44808 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
2020-09-21security/tpm/tss/tcg-2.0: add const to marshalling functionsCaveh Jalali
This adds the const qualifier to inputs of marshalling functions as they are intended to be read-only. Change-Id: I099bf46c928733aff2c1d1c134deec35da6309ba Signed-off-by: Caveh Jalali <caveh@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45409 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-08-20drivers/spi/tpm: Enable long cr50 ready pulses for Tiger Lake systemsJes Klinke
For Volteer (and future Tiger Lake boards) we can enable mode S0i3.4 only if we know that the Cr50 is generating 100us interrupt pulses. We have to do so, because the SoC is not guaranteed to detect pulses shorter than 100us in S0i3.4 substate. A new Kconfig setting CR50_USE_LONG_INTERRUPT_PULSES controls new code running in verstage, which will program a new Cr50 register, provided that Cr50 firmware is new enough to support the register. BUG=b:154333137 TEST=util/abuild/abuild -t GOOGLE_VOLTEER -c max -x Signed-off-by: Jes Bodi Klinke <jbk@chromium.org> Change-Id: If83188fd09fe69c2cda4ce1a8bf5b2efe1ca86da Reviewed-on: https://review.coreboot.org/c/coreboot/+/43741 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-07-09security/tpm/tss/tcg-1.2/tss.c: Drop dead codeAngel Pons
This code is not even being build-tested. Drop it before it grows moss. Change-Id: Ifda2bbd87cd8ef5ec8e449d2c4d303be37b4d7c7 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43212 Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Michael Niewöhner Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-06-02src: Remove redundant includesElyes HAOUAS
<types.h> is supposed to provide <commonlib/bsd/cb_err.h>, <stdbool.h>,<stdint.h> and <stddef.h>. So remove those includes each time when <types.h> is included. Change-Id: I886f02255099f3005852a2e6095b21ca86a940ed Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41817 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2020-05-25security/tpm: Use SPDX identifiersJacob Garber
Also adjust a few comments to follow the style guide. Change-Id: I22001320f2ce1f0db348e0f7fabc5a65b50ba53e Signed-off-by: Jacob Garber <jgarber1@ualberta.ca> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41600 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-08security: tcg-2.0: Ignore data payload for errors, fix Cr50 boot modeJulius Werner
This patch improves the response buffer handling for TPM 2.0. Previously we would allow any command to return no payload, but if there was a payload we would always try to unmarshal it according to the normal success response. This was sort of relying on the fact that the TPM usually returns no additional data after the header for error responses, but in practice that is not always true. It also means that commands without a response payload accidentally work by default even though we did not explicitly add unmarshallig support for them, which seems undesirable. Adding explicit unmarshalling support for TPM2_SelfTest which was only supported through this loophole before. This patch changes the behavior to always accept any amount of payload data for error responses but not unmarshal any of it. None of our use cases actually care about payload data for errors, so it seems safer to not even try to interpret it. For success responses, on the other hand, we always require support for the command to be explicitly added. This fixes a problem with the Cr50 GET_BOOT_MODE command where an error response would only return the subcommand code but no data after that. Also add support for a second, slightly different NO_SUCH_COMMAND error code that was added in Cr50 recently. Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: Ib85032d85482d5484180be6fd105f2467f393cd2 Reviewed-on: https://review.coreboot.org/c/coreboot/+/41100 Reviewed-by: Vadim Bendebury <vbendeb@chromium.org> Reviewed-by: Andrey Pronin <apronin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-08{security,soc}/*/Kconfig: Replace GPLv2 long form headers with SPDX headerElyes HAOUAS
Change-Id: Ie3721f6a93dacb8014f93aa86780d51a659a68df Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41145 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-04-23vboot: Add permission check for kernel spaceDaisuke Nojiri
This patch restores the permission check for the kernel space which was dropped when read_space_kernel was moved from Depthcharge by CL:2155429. BUG=chromium:1045217, chromium:1020578 BRANCH=none TEST=none Signed-off-by: dnojiri <dnojiri@chromium.org> Change-Id: If6d487940f39865cadc0ca9d5de6e055ad3e017d Reviewed-on: https://review.coreboot.org/c/coreboot/+/40579 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-17TPM: Add tlcl_cr50_get_boot_modednojiri
tlcl_cr50_get_boot_mode gets the boot mode from Cr50. The boot mode tells coreboot/depthcharge whether booting the kernel is allowed or not. BUG=b:147298634, chromium:1045217, b:148259137 BRANCH=none TEST=Verify software sync succeeds on Puff. Signed-off-by: dnojiri <dnojiri@chromium.org> Change-Id: Iadae848c4bf315f2131ff6aebcb35938307b5db4 Reviewed-on: https://review.coreboot.org/c/coreboot/+/40388 Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Christian Walter <christian.walter@9elements.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-04src/security: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: I51f5764b57fb8b62e3a4b3d41bd32e5330a2983c Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40057 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2020-03-17src (minus soc and mainboard): Remove copyright noticesPatrick Georgi
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I89b10076e0f4a4b3acd59160fb7abe349b228321 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39611 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-02-04security/tpm/tss: Add ClearControl FunctionChristian Walter
Add ClearControl Function which is needed for a follow-up patch. Change-Id: Ia19185528fd821e420b0bdb424760c93b79523a4 Signed-off-by: Christian Walter <christian.walter@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38617 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2019-12-19src/security: Remove unused <stdlib.h>Elyes HAOUAS
Change-Id: I0b5c375baf7911ebced2f8c43a88aae014c877ad Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33694 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-29security/tpm: Drop CAR_GLOBAL_MIGRATION supportArthur Heymans
Change-Id: I1c09eda6164efb390de4626f52aafba59962f9c4 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37029 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-11Revert "security/tpm/tss/tcg-2.0: Add multi digits support to tlcl_extend()"Julius Werner
This reverts commit fdb9805d6884090fd7bf62dbdf9c858692e55fb4. CB:33252 wasn't reviewed by a TPM maintainer and breaks abstraction layers (pulling TSS-details into TSPI, completely changing interpretation of the arguments to tlcl_extend() based on TSS version). It's also not clear why it was implemented the way it was (should have been much easier and cleaner ways to achieve the same thing). Since the author is not reacting, let's revert it for now. It can be cleaned up and resubmitted later. (Not reverting the header changes since those are not objectionable, and there are later patches dependent on it.) Change-Id: Ice44f55c75a0acc07794fe41c757a7bca75406eb Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35351 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2019-09-07security/tpm: Use correct hash digest lengthsJacob Garber
TPMU_HA is a union of all the different hash digests, and so sizeof(TPMU_HA) evaluates to 64 (the size of the largest one). This will lead to out-of-bounds writes when copying smaller digests, so use the specific digest size for each algorithm. Change-Id: Ic9101f157d5a19836b200ecd99f060de552498d2 Signed-off-by: Jacob Garber <jgarber1@ualberta.ca> Found-by: Coverity CID 14049{49,50,51,52,53,54,55,56,57,58,60,61,62} Reviewed-on: https://review.coreboot.org/c/coreboot/+/35287 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2019-09-06security/tpm/tss/tcg-2.0: Add support for algorithmsFrans Hendriks
Function marshal_TPMT_HA() supports SHA-256 only. Add support for more algorithms. BUG=N/A TEST=Build binary and verified logging on Facebook FBG-1701 Change-Id: Ife8d44484c7a7cb717035e5ae0870bbee205661b Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35276 Reviewed-by: Lance Zhao <lance.zhao@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-05security/tpm/tss/tcg-2.0: Add multi digits support to tlcl_extend()Frans Hendriks
To support multi digists the tlcl_extend() for TPM2 expects TPML_DIGEST_VALUE pointer as input argument. BUG=N/A TEST=Build binary and verified logging on Facebook FBG-1701 Change-Id: I8d86c41c23e4e93a84e0527d7cddcfd30d5d8394 Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33252 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lance Zhao <lance.zhao@gmail.com>
2019-09-03security/tpm/tss/tcg-2.0: Use tlcl_get_hash_size_from_algo() for hash sizeFrans Hendriks
mashal_TPMT_HA() uses size of SHA-256 hash. Use tlcll_get_hash_size_from_algo() to determince the hash size. BUG=N/A TEST=Build binary and verified logging on Facebook FBG-1701 Change-Id: I739260e13e9cd10a61d52e13e8741b12ec868d7f Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33251 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lance Zhao <lance.zhao@gmail.com> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-07-19security/tpm/tss/tcg-2.0: Add TPM2 function tlcl_getcapability()Frans Hendriks
Add function tlcl_getcapability() to return TPM2 capability. To support TPM2 capability TPM_CAP_PCRS handling is added to unmarshal_get_capability(). BUG=N/A TEST=Build binary and verified logging on Facebook FBG-1701 Change-Id: I85e1bd2822aa6e7fd95ff2b9faa25cf183e6de37 Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/30826 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-07-01security/tpm/tss/tcg-2.0/tss.c: Add debug message to tlcl_lib_init()Frans Hendriks
No message is reported in tlcl_lib_init() when tis_init() or tis_open() returned an error value. Add debug string. BUG=N/A TEST=Build binary and verified logging on Facebook FBG-1701 Change-Id: I522e488ddd3a1bd94a1a8c8470c757bd79c6d5c5 Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33415 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-04-24security/tpm: Change POWER_OFF_ON_CR50_UPDATE so it can be disabledKeith Short
Modify the POWER_OFF_ON_CR50_UPDATE Kconfig option so that specific mainboard implementations can disable the option. BUG=b:126632503 BRANCH=none TEST=Build coreboot on sarien/arcada. TEST=Perform Cr50 firmware update on Sarien, confirm the platform boots normally after sending TURN_UPDATE_ON to the Cr50. Change-Id: I3beefaae21de61e53ae232dbdc8ea9dbb2c78cd5 Signed-off-by: Keith Short <keithshort@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32435 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2019-04-08{src,util}: Correct typo in comment and debug stringFrans Hendriks
Correct typo in comment and debug string. BUG=N/A TEST=build Change-Id: I0362bb8d7c883e7fcbc6a2fc2f9918251f0d8d6e Signed-off-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/29321 Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-03-20src: Use 'include <string.h>' when appropriateElyes HAOUAS
Drop 'include <string.h>' when it is not used and add it when it is missing. Also extra lines removed, or added just before local includes. Change-Id: Iccac4dbaa2dd4144fc347af36ecfc9747da3de20 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31966 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2019-02-13coreboot: check Cr50 PM mode on normal bootKeith Short
Under some scenarios the key ladder on the Cr50 can get disabled. If this state is detected, trigger a reboot of the Cr50 to restore full TPM functionality. BUG=b:121463033 BRANCH=none TEST=Built coreboot on sarien and grunt platforms. TEST=Ran 'gsctool -a -m disable' and reboot. Verified coreboot sends VENDOR_CC_IMMEDIATE_RESET command to Cr50 and that the Cr50 resets and then the platform boots normally. TEST=Performed Cr50 rollback to 0.0.22 which does not support the VENDOR_CC_TPM_MODE command, confirmed that platform boots normally and the coreboot log captures the unsupported command. Tested-by: Keith Short <keithshort@chromium.org> Change-Id: I70e012efaf1079d43890e909bc6b5015bef6835a Signed-off-by: Keith Short <keithshort@chromium.org> Reviewed-on: https://review.coreboot.org/c/31260 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2019-01-17tss/tcg-2.0: remove unnecessary break from marshaling codeJoel Kitching
BUG=None TEST=None Change-Id: I054e0799469bf39499666342a5c639b1f766cd85 Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/c/29652 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-01-17src/security/tpm: query recovery mode from Cr50Keith Short
On the Sarien/Arcada platforms, the EC is not trusted to provide the state of the ESC+REFRESH+PWR recovery combination. On these platforms the Cr50 latches the state of REFRESH+PWR for use as the recovery mode key combination. BUG=b:122715254 BRANCH=none TEST=Verify recovery mode screen shown after pressing REFRESH+PWR Signed-off-by: Keith Short <keithshort@chromium.org> Change-Id: Ie3ce519956f916023c8c52f1d11fa93331f52f3c Reviewed-on: https://review.coreboot.org/c/30929 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2018-11-28tss: implement tlcl_save_stateJoel Kitching
When an untrusted OS is running, we would like to use the Cr50 vendor-specific VENDOR_CC_TPM_MODE command to disable TPM. Before doing this, we should save TPM state. Implement tlcl_save_state for this purpose. This needs to live in coreboot codebase since on S3 resume path, depthcharge is not reached. Implement the function in both tcg-1.2 and tcg-2.0 for completeness. BUG=b:70681930,b:118202153 TEST=hack a call to tlcl_save_state into coreboot on S3 resume verify in AP console that it is called Signed-off-by: Joel Kitching <kitching@google.com> Change-Id: I8b51ca68456fc9b655e4dc2d0958b7c040d50510 Reviewed-on: https://review.coreboot.org/c/29646 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-11-01src: Add missing include <stdint.h>Elyes HAOUAS
Change-Id: Idf10a09745756887a517da4c26db7a90a1bf9543 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/29403 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
2018-10-30src: Add missing include <stdint.h>Elyes HAOUAS
Change-Id: I6a9d71e69ed9230b92f0f330875515a5df29fc06 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/29312 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-10-24tpm2/tlcl_send_startup: should pass on TPM_E_INVALID_POSTINITJoel Kitching
Change TSS layer tlcl_send_startup() to expose TPM_RC_INITIALIZE, which gets mapped to TPM_E_INVALID_POSTINIT. The return value is exposed to TSPI layer tpm_setup(), and dealt with as follows: - Regular startup: TPM_E_INVALID_POSTINIT should count as failure. - S3 resume: TPM_E_INVALID_POSTINIT can be assumed to mean that TPM maintains power during S3, and is already initialized. Also, correct an error where |response| could be erroneously accessed when it is set to NULL. BUG=b:114018226 TEST=compile coreboot Change-Id: Ib0c3750386ae04279401c1dc318c5019d39f5ecf Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/29063 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2018-10-15vc/google/chromeos/ec: remove EC hibernate in cr50 update pathAaron Durbin
More platforms are not able to hibernate under certain circumstances, such as when AC is plugged. This original path was conservatively put in to prevent potential damage when cr50-update-caused asynchronous resets occur. Julius' compelling argument that async resets from recovery mode requests should have enough coverage of the design over the course of project development. Remove the hibernate path and assume all is well going forward. Change-Id: I37121e75ff4e6abcb41d8534a1eccf0788ce2ea2 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/29076 Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Jett Rink <jettrink@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-10-08Move compiler.h to commonlibNico Huber
Its spreading copies got out of sync. And as it is not a standard header but used in commonlib code, it belongs into commonlib. While we are at it, always include it via GCC's `-include` switch. Some Windows and BSD quirk handling went into the util copies. We always guard from redefinitions now to prevent further issues. Change-Id: I850414e6db1d799dce71ff2dc044e6a000ad2552 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/28927 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-10-05tpm2/tlcl_send_startup: correct TPM2_Startup error logicJoel Kitching
BUG=b:114018226 TEST=compile coreboot Change-Id: Iffad582d5c19252dde1c9dc97fc7fd145944a3b3 Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/28749 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-08-17cr50: Allow boards to disable powering off EC on cr50 updateDaisuke Nojiri
This patch allows boards to disable turning off EC on cr50 update. If CR50 resets the whole system, an EC reset is not required. BUG=b:112604277 BRANCH=none TEST=gsctool -a -u /media/removable/cr50.bin && reboot Verify EC reboots. AP prints 'Waiting for CR50 reset to pick up update' then reboots. Change-Id: I60a7aa50a549e7a5a1a114245fbf7b9646d813bb Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://review.coreboot.org/28110 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-10src: Fix typoElyes HAOUAS
Change-Id: I689c5663ef59861f79b68220abd146144f7618de Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/27988 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-08-08security/tpm: Report tpm_unmarshal_response warningRichard Spiegel
In procedure tpm_unmarshal_response(), variable "rc" is used early to decide if it should return NULL. Later however, the code proceeds to its end even if one subroutine reports error. If "rc" is not 0, report that there was a partial error in the procedure. BUG=b:112253891 TEST=Build and boot grunt. Change-Id: I7575bc75104fd97f138224aa57561e68f6548e58 Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-on: https://review.coreboot.org/27931 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-06-04security/tpm: Unify the coreboot TPM software stackPhilipp Deppenwiese
* Remove 2nd software stack in pc80 drivers directory. * Create TSPI interface for common usage. * Refactor TSS / TIS code base. * Add vendor tss (Cr50) directory. * Change kconfig options for TPM to TPM1. * Add user / board configuration with: * MAINBOARD_HAS_*_TPM # * BUS driver * MAINBOARD_HAS_TPM1 or MAINBOARD_HAS_TPM2 * Add kconfig TPM user selection (e.g. pluggable TPMs) * Fix existing headers and function calls. * Fix vboot for interface usage and antirollback mode. Change-Id: I7ec277e82a3c20c62a0548a1a2b013e6ce8f5b3f Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/24903 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-03-16security/tpm: Fix TPM software stack vulnerabilityzaolin
* Fix tlcl_read() for TPM 1.2 * https://github.com/nccgroup/TPMGenie Change-Id: I1618b2cc579d189bccca7a781e2bed0976a8b471 Signed-off-by: zaolin <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/25184 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-01-18security/tpm: Move TSS stacks into sub-directoryPhilipp Deppenwiese
Change-Id: I5e20d98665c17d39f3f69772093a062bb905f6f9 Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/22105 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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