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2018-10-17arch/x86/exception: Improve the readability of a commentJonathan Neuschäfer
Add punctuation and fix a typo. Change-Id: Ic61c665f7e2daefb50b478a1710ea66c8a88235a Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/28993 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2018-10-12libpayload: arm64: Conform to new coreboot lib_helpers.h and assume EL2Julius Werner
This patch adds the new, faster architectural register accessors to libpayload that were already added to coreboot in CB:27881. It also hardcodes the assumption that coreboot payloads run at EL2, which has already been hardcoded in coreboot with CB:27880 (see rationale there). This means we can drop all the read_current/write_current stuff which added a lot of unnecessary helpers to check the current exception level. This patch breaks payloads that used read_current/write_current accessors, but it seems unlikely that many payloads deal with this stuff anyway, and it should be a trivial fix (just replace them with the respective _el2 versions). Also add accessors for a couple of more registers that are required to enable debug mode while I'm here. Change-Id: Ic9dfa48411f3805747613f03611f8a134a51cc46 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/29017 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
2018-10-11selfboot: remove bounce buffersRonald G. Minnich
Bounce buffers used to be used in those cases where the payload might overlap coreboot. Bounce buffers are a problem for rampayloads as they need malloc. They are also an artifact of our x86 past before we had relocatable ramstage; only x86, out of the 5 architectures we support, needs them; currently they only seem to matter on the following chipsets: src/northbridge/amd/amdfam10/Kconfig src/northbridge/amd/lx/Kconfig src/northbridge/via/vx900/Kconfig src/soc/intel/fsp_baytrail/Kconfig src/soc/intel/fsp_broadwell_de/Kconfig The first three are obsolete or at least could be changed to avoid the need to have bounce buffers. The last two should change to no longer need them. In any event they can be fixed or pegged to a release which supports them. For these five chipsets we change CONFIG_RAMBASE from 0x100000 (the value needed in 1999 for the 32-bit Linux kernel, the original ramstage) to 0xe00000 (14 Mib) which will put the non-relocatable x86 ramstage out of the way of any reasonable payload until we can get rid of it for good. 14 MiB was chosen after some discussion, but it does fit well: o Fits in the 16 MiB cacheable range coreboot sets up by default o Most small payloads are well under 14 MiB (even kernels!) o Most large payloads get loaded at 16 MiB (especially kernels!) With this change in place coreboot correctly still loads a bzImage payload. Werner reports that the 0xe00000 setting works on his broadwell systems. Change-Id: I602feb32f35e8af1d0dc4ea9f25464872c9b824c Signed-off-by: Ronald G. Minnich <rminnich@gmail.com> Reviewed-on: https://review.coreboot.org/28647 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-10-11riscv: add physical memory protection (PMP) supportXiang Wang
These codes are written by me based on the privileged instruction set. I tested it by qemu/riscv-probe. Change-Id: I2e9e0c94e6518f63ade7680a3ce68bacfae219d4 Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/28569 Reviewed-by: Philipp Hug <philipp@hug.cx> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> 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>
2018-10-06arch/riscv: Update comment about mstatus initializationJonathan Neuschäfer
coreboot does not set up virtual memory anymore. Change-Id: I231af07b2988e8362d1cdd606ce889fb31136ff1 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/28831 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Hug <philipp@hug.cx> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2018-10-04arch/x86: Make mb/romstage.c optionalRizwan Qureshi
Currently src/mainboard/*/romstage.c is mandatory for compiling, this makes having the file present even though there is nothing to initialize in romstage on the mainboard side. Eliminate the need to have empty romstage.c files using the wildcard function. BUG=None BRANCH=None TEST= build cannonlake_rvp after removing the romstage.c file. Change-Id: Id6335a473d413d1aa89389d3a3d174ed4a1bda90 Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Reviewed-on: https://review.coreboot.org/28849 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subrata.banik@intel.com>
2018-10-04arch/riscv: Adjust compiler flags for scan-buildJonathan Neuschäfer
Clang doesn't understand -march=riscv64imac and -mcmodel=medany, so don't use them when running the clang static analyzer. On the other hand, __riscv and __riscv_xlen need to be defined in order to select some macros in src/arch/riscv/include/arch/encoding.h. __riscv_flen selects the floating-point paths in src/arch/riscv/misaligned.c. -mabi is moved with -march for consistency. A complete list of preprocessor definitions on RISC-V can be found at https://github.com/riscv/riscv-toolchain-conventions#cc-preprocessor-definitions With this commit, scan-build produces a useful result on RISC-V. Change-Id: Ia2eb8c3c2f7eb5ddd47db24b8e5fcd6eaf6c5589 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/28713 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Philipp Hug <philipp@hug.cx> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2018-09-26arch/riscv: Advance the PC after handling misaligned load/storeJonathan Neuschäfer
After emulating an instruction in the misaligned load/store handler, we need to increment the program counter by the size of instruction. Otherwise the same instruction is executed (and emulated) again and again. While were at it: Also return early in the unlikely case that the faulting instruction is not 16 or 32 bits long, and be more explicit about the return values of fetch_*bit_instruction. Tested by Philipp Hug, using the linuxcheck payload. Fixes: cda59b56ba ("riscv: update misaligned memory access exception handling") Change-Id: Ie2dc0083835809971143cd6ab89fe4f7acd2a845 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/28617 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Hug <philipp@hug.cx> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2018-09-21arch/{mips,power8}/include/arch: Don't use device_tElyes HAOUAS
Use of device_t is deprecated. Change-Id: I8790bc333caa367ef46bf80b5fecc3e90ef89ca0 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/28675 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2018-09-21arch/riscv/include/arch: Don't use device_tElyes HAOUAS
Use of device_t is deprecated. Change-Id: If52de0d87b02419090b29a7cf1952905d3f975f6 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/28691 Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-09-19arch/arm/include/armv7/arch: Remove dead codeElyes HAOUAS
Change-Id: Id3199d130825a5f796108ae45ce965325511ce8b Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/28646 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-09-16acpi: Call acpi_gen_writeSTA by status from device treeHung-Te Lin
The device tree now supports 'hidden' and the status can be found in `struct device.hidden`. A new acpi_device_status() will return the expected setting of STA from a `struct device`. BUG=b:72200466 BRANCH=eve TEST=Builds and boots properly on device eve Change-Id: I6dc62aff63cc3cb950739398a4dcac21836c9766 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: https://review.coreboot.org/28567 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-09-16riscv: don't write to mstatus.XSXiang Wang
XS is a read-only field of mstatus. Unable to be write. So remove this code. Change-Id: I3ad6b0029900124ac7cce062e668a0ea5a8b2c0e Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/28357 Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-by: Philipp Hug <philipp@hug.cx> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-09-15arch/x86/acpi_bert_storage.c: Fix coverity error CID 1395706Richard Spiegel
There are 8 possible BERT context errors, with table ctx_names being a table to print their names. Thus the table is supposed to have 8 elements, and indeed it has 8 lines... but some lines are missing commas, and when compiling it becomes a 5 element table. Add the commas at the appropriate places. BUG=b:115719190 TEST=none. Change-Id: I04a2c82a25fe5f334637053ef81fa6daffb5b9c5 Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-on: https://review.coreboot.org/28607 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Daniel Kurtz <djkurtz@google.com>
2018-09-15arch/riscv: Configure delegation only if S-mode is supportedJonathan Neuschäfer
On the FU540 the bootblock runs on a core without lesser privilege modes, so the medeleg/mideleg CSRs are not implemented on that core, leading to a CPU exception when these CSRs are accessed. Configure medeleg/mideleg only if the misa register indicates that S-mode is implemented on the executing RISC-V core. Change-Id: Idad97e42bac2ff438dd233a5d125f93594505d63 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/25791 Reviewed-by: Xiang Wang <wxjstz@126.com> Reviewed-by: Philipp Hug <philipp@hug.cx> Reviewed-by: Johanna Schander <coreboot@mimoja.de> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-09-14arch/x86/acpigen: Fix comment in _ROM method generatorJonathan Neuschäfer
Commit 24462e6507 ("x86/acpigen: Fix ACPI _ROM method") changed the code to generate a serialized method, but didn't adjust the comment. Change-Id: Ie7dbaff13d36f31e9d627609d0f74a4e9fa5a1e9 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/28591 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-09-14arch/riscv: Only execute on hart 0 for nowPhilipp Hug
Only execute coreboot on hart 0 until synchronisation between hart's is ready. Change-Id: I2181e79572fbb9cc7bee39a3c2298c0dae6c1658 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/28605 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2018-09-14arch/riscv: provide a monotonic timerPhilipp Hug
The RISC-V Privileged Architecture specification defines the Machine Time Registers (mtime and mtimecmp) in section 3.1.15. Makes it possible to use the generic udelay. The timer is enabled using RISCV_USE_ARCH_TIMER for the lowrisc, sifive and ucb soc. Change-Id: I5139601226e6f89da69e302a10f2fb56b4b24f38 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/27434 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-09-14arch/riscv: add missing endian.h header to io.hPhilipp Hug
Make it uniform as other architectures also include it in io.h Change-Id: I62c2d909c703f01cdaabdaaba344f82b6746f094 Signed-off-by: Philipp Hug <philipp@hug.cx> Reviewed-on: https://review.coreboot.org/28601 Reviewed-by: Ronald G. Minnich <rminnich@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-09-14complier.h: add __always_inline and use it in code baseAaron Durbin
Add a __always_inline macro that wraps __attribute__((always_inline)) and replace current users with the macro, excluding files under src/vendorcode. Change-Id: Ic57e474c1d2ca7cc0405ac677869f78a28d3e529 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/28587 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@google.com>
2018-09-10riscv: update misaligned memory access exception handlingXiang Wang
Support for more situations: floating point, compressed instructions, etc. Add support for redirect exception to S-Mode. Change-Id: I9983d56245eab1d458a84cb1432aeb805df7a49f Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/27972 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
2018-09-10riscv: update mtime initializationXiang Wang
Add a interface, which is implemented by SoC. Change-Id: I5524732f6eb3841e43afd176644119b03b5e5e27 Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/28372 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
2018-09-07x86/acpi: Add BERT tableMarshall Dawson
Create a structure for the Boot Error Record Table, and a generic table generator function. BUG=b:65446699 TEST=inspect BERT region, and dmesg, on full patch stack. Use test data plus a failing Grunt system. Change-Id: Ibeef4347678598f9f967797202a4ae6b25ee5538 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/28472 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-09-07x86/acpi: Add BERT to the revision tableMarshall Dawson
Add the proper table revision level for the Boot Error Record Table. BUG=b:65446699 TEST=inspect BERT region, and dmesg, on full patch stack. Use test data plus a failing Grunt system. Change-Id: Ib4596fe8c0dd2a4e2e98df3a1bb60803c48d0256 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/28471 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-09-07arch/x86: Add BERT region support functionsMarshall Dawson
Add code for generating the region pointed to in an ACPI Boot Error Record Table. The BERT region must be reported as Reserved to the OSPM, so this code calls out to a system-specific region locator. cbmem is reported as type 16 and is not usable for the BERT region. Events reported via BERT are Generic Error Data, and are constructed as follows (see ACPI and UEFI specs for reference): * Each event begins with a Generic Error Status Block, which may contain zero or more Generic Data Entries * Each Generic Data Entry is identifiable by its Section Type field, and the data structures associated are also in the UEFI spec. * The GUIDs are listed in the Section Type field of the CPER Section Descriptor structure. BERT doesn't use this structure but simply uses its GUIDs. * Data structures used in the Generic Data Entry are named as Error Sections in the UEFI spec. * Some sections may optionally include a variable number of additional structures, e.g. an IA32/X64 processor error can report error information as well as machine contexts. It is worth noting that the Linux kernel (as of v4.4) does not attempt to parse IA32/X64 sections, and opts to hexdump them instead. BUG=b:65446699 TEST=inspect BERT region, and dmesg, on full patch stack. Use test data plus a failing Grunt system. Change-Id: I54826981639b5647a8ca33b8b55ff097681402b9 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/28470 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-09-06chromeos/gnvs: remove function and naming cleanupJoel Kitching
- Remove unused acpi_get_chromeos_acpi_info (see CB:28190) - Make function naming in gnvs.h consistent (start with "chromeos_") BUG=b:112288216 TEST=compile and run on eve Change-Id: I5b0066bc311b0ea995fa30bca1cd9235dc9b7d1b Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/28406 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-09-06x86/acpi: Add APEI definitionsMarshall Dawson
Add ACPI Platform Error Interfaces definitions that will be used for building a BERT table region in a subsequent patch. Two tables are defined: the Generic Error Status Block, Generic Error Data Entry. For reference, see the ACPI specification 6.2-A tables 381 and 382. BUG=b:65446699 TEST=inspect BERT region, and dmesg, on full patch stack. Use test data plus a failing Grunt system. Change-Id: Ib9f4e506080285a7c3de6a223632c6f70933e66c Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/28469 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-09-05arch/x86/Makefile: include dependencies for romcc bootblockNico Huber
We already explicitly generated a dependencies file for the romcc bootblock. Though, as it has its own rule and isn't registered to any of our object-file classes, the dependencies file wasn't included automatically. Change-Id: I441cf229312dff82f377dcb594939fb85c441eed Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/28442 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-09-05riscv: add entry assembly file for RAMSTAGEXiang Wang
RAMSTAGE will revoke CAR/scratchpad, so stack and exception handling needs to be moved to ddr memory. So add a assembly file to do this. Change-Id: I58aa6ff911f385180bad6e026d3c3eace846e37d Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/28384 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-09-05riscv: add support to check machine length at runtimeXiang Wang
Highest two bits of misa can be used to check machine length. Add code to support this. Change-Id: I3bab301d38ea8aabf2c70437e179287814298b25 Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/27770 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
2018-09-04riscv: add spin lock supportXiang Wang
Add spin lock support for riscv. Change-Id: I7e93fb8b35c4452f0fe3f7f4bcc6f7aa4e042451 Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/27356 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
2018-09-04riscv: Add DEFINE_MPRV_READ_MXR to read execution-only pageXiang Wang
Must to set MXR, when needs to read the page which is execution-only. So make this change. Change-Id: I19519782fe791982a8fbd48ef33b5a92a3c48bfc Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/28394 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
2018-09-02riscv: separately define stack locations at different stagesXiang Wang
BOOTBLOCK/ROMSTAGE run in CAR/scratchpad. When RAMSTAGE begins execution will enable cache, then CAR will disappear. So the Stack will be separated. Change-Id: I37a0c1928052cabf61ba5c25b440363b75726782 Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/28383 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-08-30riscv: update the definition of intptr_t/uintptr_tXiang Wang
These RISC-V ABIs defined by GCC : ilp32 ilp32d ilp32f lp64 lp64d lp64f. Through this we know that the length of the long's bit is equal to pointer. So update this code. This's more flexible. Change-Id: I16e1a2c12c6034df75dc360b65acb1b6affec49b Signed-off-by: Xiang Wang <wxjstz@126.com> Reviewed-on: https://review.coreboot.org/27768 Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-28acpi: Hide Chrome and coreboot specific devicesDavid Wu
Some ACPI interfaces introduced by Chrome or coreboot do not need drivers outside ChromeOS, for example Chrome EC or coreboot table; or will be probed by direct ACPI calls (instead of trying to find drivers by device IDs). These interfaces should be set to hidden so non-ChromeOS systems, for example Windows, won't have problem finding driver. Interfaces changed: - coreboot (BOOT0000), only used by Chrome OS / Linux kernel. - Chrome OS EC - Chrome OS EC PD - Chrome OS TBMC - Chrome OS RAMoops BUG=b:72200466 BRANCH=eve TEST=Boot into non-ChromeOS systems (for example Windows) and checked ACPI devices on UI. Change-Id: I9786cf9ee07b2c3f11509850604f2bfb3f3e710a Signed-off-by: David Wu <David_Wu@quanta.corp-partner.google.com> Reviewed-on: https://chromium-review.googlesource.com/1078211 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Commit-Queue: Hung-Te Lin <hungte@chromium.org> Tested-by: Hung-Te Lin <hungte@chromium.org> Trybot-Ready: Hung-Te Lin <hungte@chromium.org> Reviewed-on: https://review.coreboot.org/28333 Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-27x86/acpi: Update MADT table versionMarc Jones
Update the MADT table version to sync with the FADT table version. All current coreboot FADT tables are set to ACPI_FADT_REV_ACPI_3_0 and the MADT should be set to match. This error was found by running FWTS: FAILED [MEDIUM] SPECMADTFADTRevisions: Test 2, MADT revision is not in sync with the FADT revision; MADT 1 expects FADT 3.0 but found 4.0 instead. BUG=b:112476331 TEST-Run FWTS Change-Id: If5ef53794ff80dd21f13c247d17c2a0e9f9068f2 Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/28256 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-by: Martin Roth <martinroth@google.com>
2018-08-27x86/acpi: Add ACPI table revision functionMarc Jones
Use a single function to set ACPI table versions. This allows us to keep revisions synced to the correct levels for coreboot. This is a partial fix for the bug: FAILED [MEDIUM] SPECMADTFADTRevisions: Test 2, MADT revision is not in sync with the FADT revision; MADT 1 expects FADT 3.0 but found 4.0 instead. BUG=b:112476331 TEST-Run FWTS Change-Id: Ie9a486380e72b1754677c3cdf8190e3ceff9412b Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/28276 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-22acpi: remove CBMEM_ID_ACPI_GNVS_PTR entryJoel Kitching
Since we can retrieve the address of ACPI GNVS directly from CBMEM_ID_ACPI_GNVS, there is no need to store and update a pointer separately. TEST=Compile and run on Eve Signed-off-by: Joel Kitching <kitching@google.com> Change-Id: I59f3d0547a4a724e66617c791ad82c9f504cadea Reviewed-on: https://review.coreboot.org/28189 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-08-17arm64: Factor out common parts of romstage execution flowJulius Werner
The romstage main() entry point on arm64 boards is usually in mainboard code, but there are a handful of lines that are always needed in there and not really mainboard specific (or chipset specific). We keep arguing every once in a while that this isn't ideal, so rather than arguing any longer let's just fix it. This patch moves the main() function into arch code with callbacks that the platform can hook into. (This approach can probably be expanded onto other architectures, so when that happens this file should move into src/lib.) Tested on Cheza and Kevin. I think the approach is straight-forward enough that we can take this without testing every board. (Note that in a few cases, this delays some platform-specific calls until after console_init() and exception_init()... since these functions don't really take that long, especially if there is no serial console configured, I don't expect this to cause any issues.) Change-Id: I7503acafebabed00dfeedb00b1354a26c536f0fe Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/28199 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-17x86/acpigen: Fix ACPI _ROM methodMarc Jones
Fix the following Error: FAILED [LOW] AMLAsmASL_MSG_SERIALIZED_REQUIRED: Test 1, Assembler remark in line 142 Line | AML source -------------------------------------------------------------------------------- 00139| 00140| Scope (\_SB.PCI0.IGFX) 00141| { 00142| Method (_ROM, 2, NotSerialized) // _ROM: Read-Only Memory | ^ | Remark 2120: Control Method should be made Serialized (due to creation of named objects within) 00143| { 00144| OperationRegion (ROMS, SystemMemory, 0xCD520000, 0xFE00) 00145| Field (ROMS, AnyAcc, NoLock, Preserve) ================================================================================ ADVICE: (for Remark #2120, ASL_MSG_SERIALIZED_REQUIRED): A named object is created inside a non-serialized method - this method should be serialized. It is possible that one thread enters the method and blocks and then a second thread also executes the method, ending up in two attempts to create the object and causing a failure. Use the acpigen_write_method_serialized() to correct the error. BUG=b:112476331 TEST=Run FWTS. Change-Id: I145c3c3103efb4a02b4e02dd177f4bf50a2c7b3e Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/28124 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2018-08-17arch/x86/acpigen: add methods for cppcMatt Delco
This change adds 2 methods for Conginuous Performance Control that was added in ACPI 5.0 and expanded twice in later versions. One function will create a global table based on a provided struct, while the other function is used to add a _CPC method in each processor object. Change-Id: I8798a4c72c681b960087ed65668f01b2ca77d2ce Signed-off-by: Matt Delco <delco@chromium.org> Reviewed-on: https://review.coreboot.org/28066 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2018-08-15arch/x86/acpigen: refactor calls to acpigen_write_registerMatt Delco
All of the callers to acpigen_write_register() also make calls to acpigen_write_resourcetemplate_[header|footer](). This change introduces acpigen_write_register_resource() to unify all of those trio of calls into one. I also made the input parameter const. Change-Id: I10b336acf9f03c423bee9dc38955b1617e11c025 Signed-off-by: Matt Delco <delco@chromium.org> Reviewed-on: https://review.coreboot.org/27672 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-14cbmem: rename vdat to chromeos_acpiJoel Kitching
There is a confusingly named section in cbmem called vdat. This section holds a data structure called chromeos_acpi_t, which exposes some system information to the Chrome OS userland utility crossystem. Within the chromeos_acpi_t structure, there is a member called vdat. This (currently) holds a VbSharedDataHeader. Rename the outer vdat to chromeos_acpi to make its purpose clear, and prevent the bizarreness of being able to access vdat->vdat. Additionally, disallow external references to the chromeos_acpi data structure in gnvs.c. BUG=b:112288216 TEST=emerge-eve coreboot, run on eve CQ-DEPEND=CL:1164722 Change-Id: Ia74e58cde21678f24b0bb6c1ca15048677116b2e Signed-off-by: Joel Kitching <kitching@google.com> Reviewed-on: https://review.coreboot.org/27888 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-08-13arm64: mmu: Spot check security state for TTB mappingJulius Werner
Since commit 372d0ff1d1 (arch/arm64: mmu: Spot check TTB memory attributes), we already check the memory attributes that the TTB region is mapped with to avoid configuration mistakes that cause weird issues (because the MMU walks the page tables with different memory attributes than they were written with). Unfortunately, we only checked cachability, but the security state attribute is just as important for this (because it is part of the cache tag, meaning that a cache entry created by accessing the non-secure mapping won't be used when trying to read the same address through a secure mapping... and since AArch64 page table walks are cache snooping and we rely on that behavior, this can lead to the MMU not seeing the new page table entries we just wrote). This patch adds the check for security state and cleans up that code a little. Change-Id: I70cda4f76f201b03d69a9ece063a3830b15ac04b Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/28017 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2018-08-10arm64: Turn architectural register accessors into inline functionsJulius Werner
Accesses to architectural registers should be really fast -- they're just registers, after all. In fact, the arm64 architecture uses them for some timing-senstive uses like the architectural timer. A read should be: one instruction, no data dependencies, done. However, our current coreboot framework wraps each of these accesses into a separate function. Suddenly you have to spill registers on a stack, make a function call, move your stack pointer, etc. When running without MMU this adds a significant enough delay to cause timing problems when bitbanging a UART on SDM845. This patch replaces all those existing functions with static inline definitions in the header so they will get reduced to a single instruction as they should be. Also use some macros to condense the code a little since they're all so regular, which should make it easier to add more in the future. This patch also expands all the data types to uint64_t since that's what the actual assembly instruction accesses, even if the register itself only has 32 bits (the others will be ignored by the processor and set to 0 on read). Arm regularly expands registers as they add new bit fields to them with newer iterations of the architecture anyway, so this just prepares us for the inevitable. Change-Id: I2c41cc3ce49ee26bf12cd34e3d0509d8e61ffc63 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/27881 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-08-10arm64: Drop checks for current exception level, hardcode EL3 assumptionJulius Werner
When we first created the arm64 port, we weren't quite sure whether coreboot would always run in EL3 on all platforms. The AArch64 A.R.M. technically considers this exception level optional, but in practice all SoCs seem to support it. We have since accumulated a lot of code that already hardcodes an implicit or explicit assumption of executing in EL3 somewhere, so coreboot wouldn't work on a system that tries to enter it in EL1/2 right now anyway. However, some of our low level support libraries (in particular those for accessing architectural registers) still have provisions for running at different exception levels built-in, and often use switch statements over the current exception level to decide which register to access. This includes an unnecessarily large amount of code for what should be single-instruction operations and precludes further optimization via inlining. This patch removes any remaining code that dynamically depends on the current exception level and makes the assumption that coreboot executes at EL3 official. If this ever needs to change for a future platform, it would probably be cleaner to set the expected exception level in a Kconfig rather than always probing it at runtime. Change-Id: I1a9fb9b4227bd15a013080d1c7eabd48515fdb67 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/27880 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-08-10arm64: Remove set_cntfrq() functionJulius Werner
CNTFRQ_EL0 is a normal AArch64 architectural register like hundreds of others that are all accessed through the raw_(read|write)_${register}() family of functions. There's no reason why this register in particular should have an inconsistent accessor, so replace all instances of set_cntfrq() with raw_write_cntfrq_el0() and get rid of it. Change-Id: I599519ba71c287d4085f9ad28d7349ef0b1eea9b Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/27947 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-08-09arch/x86/tables.c: Avoid static analysis error for unused valueRichard Spiegel
Within procedure arch_write_tables, the pointer "rom_table_end" is updated every time a table is created. However, after creating last table, pointer rom_table_end is not used, though it is updated. Add a "(void)rom_table_end;" at the end to avoid the static analysis error. BUG=b:112253891 TEST=Build and boot grunt. Change-Id: I8a34026795c7f0d1bb86c5f5c0469d40aa53994a Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com> Reviewed-on: https://review.coreboot.org/27958 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2018-08-09src/arch: Fix typoElyes HAOUAS
Change-Id: I24d219b4ce6033f64886e22973ca8716113d319f Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/27919 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
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