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2016-10-02TPM2: Fill in empty tlcl_resume function in TPM2 tlclFurquan Shaikh
On resume, TPM2_Starup(STATE) command needs to be sent to the TPM. This ensures that TPM restores the state saved at last Shutdown(STATE). Since tlcl_resume and tlcl_startup both use the same sequence for sending startup command with different arguments, add a common function that can be used by both. BUG=chrome-os-partner:58043 BRANCH=None TEST=Verified that on resume coreboot no longer complains about index read for 0x1007. Return value is 0 as expected. Change-Id: Ib8640acc9cc9cdb3ba5d40e0ccee5ca7d67fa645 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/16832 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
2016-09-20selfboot: Move the usable-RAM check into a functionSimon Glass
In preparation for making this check optional, move it into its own function. load_self_segments() is already long and we don't want to make it longer. BUG=chrome-os-partner:56314 BRANCH=none TEST=boot on gru and see that BL31 loads and runs correctly Change-Id: If48d2bf485a23f21c5599670e77a7b8b098f1a88 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 2381e02efa2033857ac06acbc4f0c0dd08de1080 Original-Change-Id: I005e5e4d9b2136605bdd95e9060655df7a8238cb Original-Signed-off-by: Simon Glass <sjg@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/381092 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16585 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-09-19arch/x86,lib: make cbmem console work in postcar stageAaron Durbin
Implement postcar stage cbmem console support. The postcar stage is more like ramstage in that RAM is already up. Therefore, in order to make the cbmem console reinit flow work one needs the cbmem init hook infrastructure in place and the cbmem recovery called. This call is added to x86/postcar.c to achieve that. Additionally, one needs to provide postcar stage cbmem init hook callbacks for the cbmem console library to use. A few other places need to become postcar stage aware so that the code paths are taken. Lastly, since postcar is backed by ram indicate that to the cbmem backing store. BUG=chrome-os-partner:57513 Change-Id: I51db65d8502c456b08f291fd1b59f6ea72059dfd Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16619 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-09-19Add minimal GNAT run time system (RTS)Nico Huber
Add a stripped-down version of libgnat. This is somehow comparable to libgcc but for Ada programs. It's licensed under GPLv3 but with the runtime library exception. So it's totally fine to link it with our GPLv2 code and keep it under GPLv2. Change-Id: Ie6522abf093f0a516b9ae18ddc69131bd721dc0c Signed-off-by: Nico Huber <nico.huber@secunet.com> Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/11836 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
2016-09-08edid: Fix a function signatureNico Huber
Change-Id: Id69cecb5cdd21c2d92aca74658f39c790f7b7b01 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/15211 Tested-by: build bot (Jenkins)
2016-09-08lib: Enable hexdump in verstageDuncan Laurie
Enable the hexdump function in verstage as it can be useful there for debugging I2C and TPM transactions. Change-Id: If9dc4bcc30964e18ff5d8a98559f6306c0adec6f Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16528 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-09-07src/lib: Fix checkpatch warningsStefan Reinauer
The script checkpatch.pl complains about these files. Fix the warnings. Change-Id: I4271cc35bb101447a316a75273cf8a6e95ed62d5 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: https://review.coreboot.org/16011 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-09-06tpm2: Fix tlcl and marshaling code for CAR usageDuncan Laurie
Fix a few more instances of global variable usage in the tlcl and marshaling code for tpm2. For the tlcl case this buffer doesn't need to be static as it isn't used after this function exits. Change-Id: Ia739c81d79c6cee9046ae96061045fe4f7fb7c23 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/16393 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-08-31Provide CAR decoration for tpm2 staticsVictor Prupis
Decorated tpm2 statics with CAR_GLOBAL BUG=chrome-os-partner:55083 BRANCH=none TEST=none Change-Id: I85620d5c6ffddab5514c01c2c652670bf33b4e7e Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: ae43d3bb7fed5b891ed38cd268bfe4e1416b77e2 Original-Change-Id: I871442ec096836a86870f8d53a3058c9c040cff8 Original-Signed-off-by: Victor Prupis <vprupis@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/373243 Original-Commit-Ready: Stefan Reinauer <reinauer@google.com> Original-Tested-by: Stefan Reinauer <reinauer@google.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16366 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-08-27cbmem: Always maintain backing store struct in a global on non-x86Julius Werner
The current CBMEM code contains an optimization that maintains the structure with information about the CBMEM backing store in a global variable, so that we don't have to recover it from cbmem_top() again every single time we access CBMEM. However, due to the problems with using globals in x86 romstage, this optimization has only been enabled in ramstage. However, all non-x86 platforms are SRAM-based (at least for now) and can use globals perfectly fine in earlier stages. Therefore, this patch extends the optimization on those platforms to all stages. This also allows us to remove the requirement that cbmem_top() needs to return NULL before its backing store has been initialized from those boards, since the CBMEM code can now keep track of whether it has been initialized by itself. Change-Id: Ia6c1db00ae01dee485d5e96e4315cb399dc63696 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/16273 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-08-27cbfs: Add "struct" file type and associated helpersJulius Werner
This patch adds functionality to compile a C data structure into a raw binary file, add it to CBFS and allow coreboot to load it at runtime. This is useful in all cases where we need to be able to have several larger data sets available in an image, but will only require a small subset of them at boot (a classic example would be DRAM parameters) or only require it in certain boot modes. This allows us to load less data from flash and increase boot speed compared to solutions that compile all data sets into a stage. Each structure has to be defined in a separate .c file which contains no functions and only a single global variable. The data type must be serialization safe (composed of only fixed-width types, paying attention to padding). It must be added to CBFS in a Makefile with the 'struct' file processor. Change-Id: Iab65c0b6ebea235089f741eaa8098743e54d6ccc Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/16272 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-08-23memlayout: Ensure TIMESTAMP() region is big enough to avoid BUG()Julius Werner
The timestamp code asserts that the _timestamp region (allocated in memlayout for pre-RAM stages) is large enough for the assumptions it makes. This is good, except that we often initialize timestamps extremely early in the bootblock, even before console output. Debugging a BUG() that hits before console_init() is no fun. This patch adds a link-time assertion for the size of the _timestamp region in memlayout to prevent people from accidentally running into this issue. Change-Id: Ibe4301fb89c47fde28e883fd11647d6b62a66fb0 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/16270 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
2016-08-19lib/fmap: provide RW region device supportAaron Durbin
Explicitly provide a RW view of an FMAP region. This is required for platforms which have separate implementations of a RO boot device and a RW boot device. BUG=chrome-os-partner:56151 Change-Id: Ibafa3dc534f53a3d90487f3190c0f8a2e82858c2 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16203 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-19drivers/spi: ensure SPI flash is boot device for coreboot tablesAaron Durbin
The spi_flash_probe() routine was setting a global varible unconditonally regardless if the probe was for the boot device or even if the boot devcie was flash. Moreover, there's no need to report the SPI information if the boot device isn't even SPI. Lastly, it's possible that the boot device is a SPI flash, but the platform may never probe (selecting SPI_FLASH) for the actual device connected. In that situation don't fill anything in as no correct information is known. BUG=chrome-os-partner:56151 Change-Id: Ib0eba601df4d77bede313c358c92b0536355bbd0 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16197 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com>
2016-08-19lib/boot_device: add RW boot device constructAaron Durbin
The current boot device usage assumes read-only semantics to the boot device. Any time someone wants to write to the boot device a device-specific API is invoked such as SPI flash. Instead, provide a mechanism to retrieve an object that can be used to perform writes to the boot device. On systems where the implementations are symmetric these devices can be treated one-in-the-same. However, for x86 systems with memory mapped SPI the read-only boot device provides different operations. BUG=chrome-os-partner:55932 Change-Id: I0af324824f9e1a8e897c2453c36e865b59c4e004 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16194 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-19drivers/spi: move cbfs_spi.c locationAaron Durbin
The common boot device spi implementation is very much specific to SPI flash. As such it should be moved into that subdirectory. It's still a high-level option but it correctly depends on BOOT_DEVICE_SPI_FLASH. Additionally that allows the auto-selection of SPI_FLASH by a platform selecting COMMON_CBFS_SPI_WRAPPER which allows for culling of SPI_FLASH selections everywhere. BUG=chrome-os-partner:56151 Change-Id: Ia2ccfdc9e1a4348cd91b381f9712d8853b7d2a79 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16212 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-19Kconfig: separate memory mapped boot device from SPIAaron Durbin
Make the indication of the boot device being memory mapped separate from SPI. However, retain the same defaults that previously existed. BUG=chrome-os-partner:56151 Change-Id: I06f138078c47a1e4b4b3edbdbf662f171e11c9d4 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16228 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-18Kconfig: rename BOOT_MEDIA_SPI_BUS to BOOT_DEVICE_SPI_FLASH_BUSAaron Durbin
Provide a default value of 0 in drivers/spi as there weren't default values aside from specific mainboards and arch/x86. Remove any default 0 values while noting to keep the option's default to 0. BUG=chrome-os-partner:56151 Change-Id: If9ef585e011a46b5cd152a03e41d545b36355a61 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16192 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Martin Roth <martinroth@google.com>
2016-08-15Revert "Kconfig: separate memory mapped boot device from SPI"Aaron Durbin
This reverts commit a83bbf58541cf41ea7a97dedbc8c02dffa59e86d. This was submitted out of order. Change-Id: Ic5a28faf94c1f1901a72e46343722eb4224c5086 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16226 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Nico Huber <nico.h@gmx.de>
2016-08-15Kconfig: separate memory mapped boot device from SPIAaron Durbin
Make the indication of the boot device being memory mapped separate from SPI. However, retain the same defaults that previously existed. BUG=chrome-os-partner:56151 Change-Id: Ibdd7c8754f9bf560a878136b1f55238e2c2549d3 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/16193 Reviewed-by: Andrey Petrov <andrey.petrov@intel.com> Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-04lib/timestamp: Add timestamps to CBMEM in POSTCAR stageFurquan Shaikh
POSTCAR stage has cbmem online. So, all timestamps need to be added to cbmem timestamp region. BUG=chrome-os-partner:55848 TEST=Verified that timestamps added in postcar show up in cbmem -t. Change-Id: I64af8c1e67b107d9adb09de57c20ea728981f07c Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/16032 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2016-08-01Remove non-ascii & unprintable charactersMartin Roth
These non-ascii & unprintable characters aren't needed. Change-Id: I129f729f66d6a692de729d76971f7deb7a19c254 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/15977 Tested-by: build bot (Jenkins) Reviewed-by: Omar Pakker Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-07-31src/lib: Capitalize ROM, RAM, NVRAM and CPUElyes HAOUAS
Change-Id: Id0871b0c2eb31e2d728180b44cc5b518b751add4 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/15985 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Omar Pakker Reviewed-by: Martin Roth <martinroth@google.com>
2016-07-28skylake/mainboard: Define mainboard hook in bootblockSubrata Banik
Move mainboard post console init functionality (google_chrome_ec_init & early_gpio programming) from verstage to bootblock. Add chromeos-ec support in bootblock BUG=chrome-os-partner:55357 BRANCH=none TEST=Built and boot kunimitsu till POST code 0x34 Change-Id: I1b912985a0234d103dcf025b1a88094e639d197d Signed-off-by: Barnali Sarkar <barnali.sarkar@intel.com> Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/15786 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-07-28bootmode: Get rid of CONFIG_BOOTMODE_STRAPSFurquan Shaikh
With VBOOT_VERIFY_FIRMWARE separated from CHROMEOS, move recovery and developer mode check functions to vboot. Thus, get rid of the BOOTMODE_STRAPS option which controlled these functions under src/lib. BUG=chrome-os-partner:55639 Change-Id: Ia2571026ce8976856add01095cc6be415d2be22e Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/15868 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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>
2016-07-26lib: Don't require ULZMA compression for postcarLee Leahy
The build fails during postcar when ULZMA compression is not selected. Fix cbfs.c to support LZ compression for ramstage as well. The build error is: build/postcar/lib/cbfs.o: In function `cbfs_load_and_decompress': /home/lee/coreboot/public/src/lib/cbfs.c:116: undefined reference to `ulzman' make: *** [build/cbfs/fallback/postcar.debug] Error 1 TEST=Build and run on Galileo Gen2 Change-Id: I7fa8ff33c0d32e0c5ff5de7918e13e6efb1df38e Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/15841 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-07-26src/lib: Enable display of cbmem during romstage and postcarLee Leahy
Enable the display of cbmem during romstage and postcar. Add a Kconfig value to prevent coreboot images from increasing in size when this feature is not in use. TEST=Build and run on Galileo Gen2 Change-Id: Ib70ad517ebf7d37a7f46ba503b4432c7c04d7ded Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com> Reviewed-on: https://review.coreboot.org/15842 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-07-25lib/bootmode: Use newly-add recovery moduleFurquan Shaikh
Use the newly added check recovery request function from recovery module in vboot2 to check for a pending recovery request. BUG=chrome-os-partner:55431 Change-Id: I354cc094f1e5d0044cf13e5bc28246f058d470c6 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/15801 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-07-25vboot: Clean up vboot codeFurquan Shaikh
1. Remove unused functions/structures. 2. Add checks for NULL return values. 3. Change prefixes to vb2 instead of vboot for functions used internally within vboot2/ 4. Get rid of vboot_handoff.h file and move the structure definition to vboot_common.h 5. Rename all functions using handoff structure to have prefix vboot_handoff_*. All the handoff functions can be run _only_ after cbmem is online. 6. Organize vboot_common.h content according to different functionalities. BUG=chrome-os-partner:55431 Change-Id: I4c07d50327d88cddbdfbb0b6f82c264e2b8620eb Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/15799 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2016-07-20tpm2_tlcl: Use signed integer for tpm2_marshal_command return valueDuncan Laurie
The tpm2_marshal_command() function returns a negative value on error, so we must use a signed type for the return value. This was found by the coverity scan: https://scan.coverity.com/projects/coreboot?tab=overview CID:1357675 CID:1357676 Change-Id: I56d2ce7d52b9b70e43378c13c66b55ac2948f218 Signed-off-by: Duncan Laurie <dlaurie@google.com> Found-by: Coverity Scan Reviewed-on: https://review.coreboot.org/15717 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2016-07-19lib: provide memrange library in romstageAaron Durbin
BUG=chrome-os-partner:52679 Change-Id: I79ffc0749fba353cd959df727fb45ca2ee5c1bf6 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15734 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
2016-07-15AGESA: Use common romstage ram stackKyösti Mälkki
Change-Id: Ie120360fa79aa0f6f6d82606838404bb0b0d9681 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/15466 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-07-15lib/version: Correct whitespace alignmentPaul Menzel
Remove and add spaces for a consistent alignment. Change-Id: I612800cd60d97f50737c235465d7d0a87f2251a8 Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-on: https://review.coreboot.org/15596 Tested-by: build bot (Jenkins) Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
2016-07-14tpm2: implement and use pcr_extend commandVadim Bendebury
TPM PCRs are used in Chrome OS for two purposes: to communicate crucial information from RO firmware and to protect FW and kernel rollback counters from being deleted. As implemented in a TPM1 compatible way, the PCR extension command requires a prebuilt digest to calculate a new PCR value. TPM2 specification introduces a PCR_Event command, where the TPM itself calculates the digest of an arbitrary length string, and then uses the calculated digest for PCR extension. PCR_Event could be a better option for Chrome OS, this needs to be investigated separately. BRANCH=none BUG=chrome-os-partner:50645 TEST=verified that the two PCRs are successfully extended before the RW firmware is called. Change-Id: I38fc88172de8ec8bef56fec026f83058480c8010 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 73388139db3ffaf61a3d9027522c5ebecb3ad051 Original-Change-Id: I1a9bab7396fdb652e2e3bc8529b828ea3423d851 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/358098 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: Darren Krahn <dkrahn@chromium.org> Reviewed-on: https://review.coreboot.org/15639 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-07-14tpm2: implement locking firmware rollback counterVadim Bendebury
TPM1.2 is using the somewhat misnamed tlcl_set_global_lock() command function to lock the hardware rollback counter. For TPM2 let's implement and use the TPM2 command to lock an NV Ram location (TPM2_NV_WriteLock). BRANCH=none BUG=chrome-os-partner:50645 TEST=verified that TPM2_NV_WriteLock command is invoked before RO firmware starts RW, and succeeds. Change-Id: I52aa8db95b908488ec4cf0843afeb6310dc7f38b Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 2f859335dfccfeea900f15bbb8c6cb3fd5ec8c77 Original-Change-Id: I62f22b9991522d4309cccc44180a5ebd4dca488d Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/358097 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: Darren Krahn <dkrahn@chromium.org> Reviewed-on: https://review.coreboot.org/15638 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-07-13tpm2: fix tpm_write() error reportingVadim Bendebury
The code misses the cases when a response was received but the command failed. This patch fixes the problem. BRANCH=none BUG=chrome-os-partner:50645 TEST=none Change-Id: I3d50a4b67e3592bb80d2524a7c7f264fddbd34ae Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 8f4d6185e13beead7156027e1cb40f7944e46569 Original-Change-Id: I914ab6509d3ab2082152652205802201a6637fcc Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/358096 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15637 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-07-13tpm2: add tlcl_force_clear and use it before factory initVadim Bendebury
tlcl_force_clear() needs to be issued each time when the device mode switches between normal/development/recovery. This patch adds command implementation using TPM_Clear TPM2 command, and also invokes it before factory initialization. BRANCH=none BUG=chrome-os-partner:50645 TEST=verified that TPM_Clear command succeeds at factory startup and the boot proceeds normally. Change-Id: Ia431390870cbe448bc1b6f1755ed17953be9bdf1 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 347ff17b97da45fa4df547ff32f9dd2c8972cefd Original-Change-Id: I2a0e62527ad46f9dd060afe5e75c7e4d56752849 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/358095 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: Darren Krahn <dkrahn@chromium.org> Reviewed-on: https://review.coreboot.org/15636 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-07-13tpm2: use pcr0 dependent nvram space policy definitionsVadim Bendebury
The TPM2 specification allows defining NV ram spaces in a manner that makes it impossible to remove the space until a certain PCR is in a certain state. This comes in handy when defining spaces for rollback counters: make their removal depend on PCR0 being in the default state. Then extend PCR0 to any value. This guarantees that the spaces can not be deleted. Also, there is no need t create firmware and kernel rollback spaces with different privileges: they both can be created with the same set of properties, the firmware space could be locked by the RO firmware, and the kernel space could be locked by the RW firmware thus providing necessary privilege levels. BRANCH=none BUG=chrome-os-partner:50645, chrome-os-partner:55063 TEST=with the rest of the patches applied it is possible to boot into Chrome OS maintaining two rollback counter spaces in the TPM NV ram locked at different phases of the boot process. Change-Id: I889b2c4c4831ae01c093f33c09b4d98a11d758da Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 36317f5e85107b1b2e732a5bb2a38295120560cd Original-Change-Id: I69e5ada65a5f15a8c04be9def92a8e1f4b753d9a Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/358094 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/15635 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-07-13tpm2: add TPM_Clear command processingVadim Bendebury
The command is sent in session mode, but has no parameters associated with it. BRANCH=none BUG=chrome-os-partner:50645 TEST=with the following patches verified that TPM_Clear command is handled successfully by the TPM. Change-Id: I3c9151e336084160acd3bb1f36f45b4d5efd4a33 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 503ad5e72fd5bd902325d74fd680c17c7c590e36 Original-Change-Id: Ida19e75166e1282732810cf45be21e59515d88e2 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/357973 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15634 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-07-13tpm2: refactor session header marshallingVadim Bendebury
For coreboot TPM2 the use case session header is always the minimal possible size, the only difference is that some commands require one and some require two handles. Refactor common session header marshalling code into a separate function. This will be useful when more commands marshalling code is added. BRANCH=none BUG=chrome-os-partner:50645 TEST=flashed the TPM and rebooted the device a few times, it successfully loaded chrome os on every attempt. Change-Id: I9b1697c44f67aab32b9cd556b559a55d5050be06 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: a97a7fa16ceeb484e90e2e1f0573e58a468350b2 Original-Change-Id: I86e6426be5200f28ebb2174b418254018e81da8e Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/357972 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15633 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-07-13tpm2: clean up tpm_marshal_command()Vadim Bendebury
The function is reusing some variables which confuses the reader as the variable names do not match their second function. This patch edits the code for readability without changing functionality. BRANCH=None BUG=chrome-os-partner:50465 TEST=with the rest of the patches applied Kevin still boots into chrome OS. Change-Id: I396206a64403229ba3921a47b5a08748d8a4b0a3 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 3cf02c365d098c9d2ca57def7cf349ef2291d140 Original-Change-Id: I95a07945d9d2b00a69d514014f848802b82dd90f Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/358915 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15611 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-07-13tpm2: avoid comparison between signed and unsigned intsVadim Bendebury
The marshaling/unmarshaling code is using integer values to represent room left in the buffer, to be able to communicate three conditions: positive number means there is room left in the buffer, zero means that the exact amount of data in the buffer was unmarshaled and negative value means that the result of the operation did not fit into the buffer. The implementation is wrong though, as it compares directly signed and unsigned values, which is illegal, as signed values get promoted to unsigned by the compiler. This patch changes the marshaling code to use size_t for the size, and use zero as marshaling failure indication - after all the buffer where the data is marshaled to should definitely be large enough, and it is reasonable to expect at least some room left in it after marshaling. The unmarshaling situation is different: we sure want to communicate errors to the caller, but do not want to propagate error return values through multiple layers. This patch keeps the size value in int, but checks if it is negative separately, before comparing with positive values. BRANCH=none BUG=chrome-os-partner:50645 TEST=with the rest of the patches applied kevin successfully boots up. Change-Id: Ibfbd1b351e35e37c8925a78d095e4e8492805bad Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: b1e862c2a650fa5f6cb25a01fe61e848a696cf17 Original-Change-Id: Ie7552b333afaff9a1234c948caf9d9a64447b2e1 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/358772 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15610 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-07-13tpm2: drop unused structuresVadim Bendebury
Some structures were included in tpm2_tlcl_structures.h that are not needed for tpm2 commands used by coreboot. Drop them from the include file. BRANCH=none BUG=none TEST=coreboot image for gru/kevin still builds fine. Change-Id: Id3a01f7afbddc98b4d14125452ae6a571f1b19cb Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 9375eef5a3f5ed2ba216b1cc8a4ce5c78ebe53d8 Original-Change-Id: I89b46900e5356989f2683d671552ecca5103ef90 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/358093 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15608 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-07-13tpm2: remove unused buffer size definitionVadim Bendebury
TPM2 structure definitions use pointers instead of buffers where possible. One structure was left behind. Replace that buffer definition with a pointer to be consistent. BRANCH=none BUG=chrome-os-partner:50645 TEST=compilation succeeds, the code using the changed structure in the upcoming patches allows to successfully boot chrome OS on Kevin Change-Id: Iea59943aa0ad6e42fcd479765a9ded0d7a1680d7 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 02b2909b1875ba65cd56cf8e3697a2b67ddaea07 Original-Change-Id: I9856ac516be13f5892ba8af0526708409a297033 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/358771 Original-Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-on: https://review.coreboot.org/15609 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-07-12lib/selfboot: clear BSS segmentsAaron Durbin
For some reason the self loader wasn't clearing segments marked as BSS type. Other segments which weren't fully written by the file-backed content were being cleared up to the indicated memsize. Treat segments marked BSS similarly by clearing their content. Change-Id: I9296c11a89455a02e5dd18bba13d4911517c04f6 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15603 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-07-12lib/selfboot: remove duplicate prog_set_area()Aaron Durbin
There were two successive calls to prog_set_area() which duplicated the same logic. Remove the unnecessary redundancy. Change-Id: I594577f8e7e78d403e7a5656f78e784e98c2c859 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15602 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-07-12lib/selfboot: don't open code linked list operationsAaron Durbin
The list insertion operations were open coded at each location. Add helper functions which provide the semantics needed by the selfboot code in a single place. Change-Id: Ic757255e01934b499def839131c257bde9d0cc93 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/15601 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-07-11tpm2: add marshaling/unmarshaling layerVadim Bendebury
TPM commands need to be serialized (marshaled) to be sent to the device, and the responses need to be de-serialized (unmarshaled) to be properly interpreted by upper layers. This layer does not exist in TPM1.2 coreboot implementation, all TPM commands used there were hardcoded as binary arrays. Availability of the marshaling/unmarshaling layer makes it much easier to add new TPM commands to the code. Command and response structures used in these functions are defined in Parts 2 and 3 of the TCG issued document Trusted Platform Module Library Family "2.0" Level 00 Revision 01.16 October 30, 2014 BRANCH=none BUG=chrome-os-partner:50645 TEST=with the rest of the patches applied it is possible to successfully initialize firmware and kernel TPM spaces. Change-Id: I80b3f971e347bb30ea08f820ec3dd27e1656c060 Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: 0782d9d452efb732e85d1503fccfcb4bf9f69a68 Original-Change-Id: I202276ef9a43c28b5f304f901ac5b91048878b76 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/353915 Original-Reviewed-by: Bill Richardson <wfrichar@chromium.org> Original-Reviewed-by: Darren Krahn <dkrahn@chromium.org> Reviewed-on: https://review.coreboot.org/15570 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
2016-07-11tpm2: implement tlcl layerVadim Bendebury
This is the first approximation of implementing TPM2 support in coreboot. It is very clearly incomplete, some of the larger missing pieces being: - PCR(s) modification - protection NVRAM spaces from unauthorized deletion/modification. - resume handling - cr50 specific factory initialization The existing TPM1.2 firmware API is being implemented for TPM2. Some functions are not required at all, some do not map fully, but the API is not yet being changed, many functions are just stubs. An addition to the API is the new tlcl_define_space() function. It abstracts TMP internals allowing the caller to specify the privilege level of the space to be defined. Two privilege levels are defined, higher for the RO firmware and lower for RW firmware, they determine who can write into the spaces. BRANCH=none BUG=chrome-os-partner:50645 TEST=with the rest of the patches applied Kevin/Gru devices can initialize and use firmware and kernel spaces Change-Id: Ife3301cf161ce38d61f11e4b60f1b43cab9a4eba Signed-off-by: Martin Roth <martinroth@chromium.org> Original-Commit-Id: bcc8e62604c705798ca106e7995a0960b92b3f35 Original-Change-Id: Ib340fa8e7db51c10e5080973c16a19b0ebbb61e6 Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/353914 Original-Commit-Ready: Martin Roth <martinroth@chromium.org> Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/15569 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 20:29:33 +0000