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2020-03-02x86/acpi_s3: Remove trailing dots from debug messagePaul Menzel
The dot is not needed, as it is no sentence and followed by a line break. Change-Id: I3905853eb7039f9c6d2486a77da47a4460276624 Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/30806 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-03-02acpi: Bump FADT to revision 6Patrick Rudolph
Some of the revision 4 FADT fields were already updated to ACPI spec revision 6, but not all of them. In addition the advertised FADT revision was 3. Implement all fields as defined in version 6 and bump the advertised FADT revision to 6. Change-Id: I10c1e2517df41159ab9b04f763d3805ecba50ffa Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39157 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-03-02arch/x86/acpigen: Add new helper routines for XOR and get_rx_gpioRajat Jain
Add new helper function in the acpigen library, that use the underlying soc routines. Change-Id: I8d65699d3c806007a50adcb51c5d84567ce451b7 Signed-off-by: Rajat Jain <rajatja@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39145 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Mathew King <mathewk@chromium.org>
2020-02-24include/arch/cpu.h: Remove old reference to ROMCCElyes HAOUAS
Change-Id: I17d13c53baf16f58e6e2ba45f439c36f7ba28690 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39071 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-02-12arch/arm64/Makefile.inc: Avoid # in variable definitionNico Huber
Interpretation if # starts a comment inside a variable definition varies between GNU make versions. Use a wildcard to match the first # and use `sed` instead of `grep | cut` to avoid unbalanced quoting chars. Tested with GNU make 4.2.1 and 4.3. Both produce the same output as 4.2.1 did before the patch. Change-Id: Ib7c4d7323e112968d3f14ea0590b7dabc57c9c45 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38794 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Julius Werner <jwerner@chromium.org>
2020-02-11arch/x86/acpi: Change message in acpi_write_dbg2_pci_uart to BIOS_DEBUGWim Vervoorn
When acpi_write_dbg2_pci_uart is called and no pci uart is available the function prints "Device not found" as an error. This is not correct. Change the error level to BIOS_DEBUG so coreboot reports the device is not available but doesn't flag this as an error. BUG=N/A TEST=build Change-Id: I14567bcfcf5a6ff427e418d15bc2675ae7a28f53 Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38744 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2020-02-04arch/x86/include/arch: Add SMM_TASK_STATE_SEGEugene Myers
This define is used to set up the STM SMM Descriptor table tr entry. Signed-off-by: Eugene D. Myers <edmyers@tycho.nsa.gov> Change-Id: Iddb1f45444d03465a66a4ebb9fde5f206dc5b300 Reviewed-on: https://review.coreboot.org/c/coreboot/+/38657 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: ron minnich <rminnich@gmail.com>
2020-01-30x86/acpi_device: Allow acpi_device_add_power_res params as optionalEdward O'Callaghan
Allow for making both reset_gpio && enable_gpio as optional in the params by fixing a potential NULL deref and defaulting to zero values. BUG=b:147026979 BRANCH=none TEST=builds Change-Id: I8053d7a080dfed898400c0994bcea492c826fe3d Signed-off-by: Edward O'Callaghan <quasisec@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38522 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-01-30arch/x86: add acpigen resource supportJonathan Zhang
Add Word/DWord/QWord Address Space Descriptor helper functions. Signed-off-by: Jonathan Zhang <jonzhang@fb.com> Signed-off-by: Reddy Chagam <anjaneya.chagam@intel.com> Change-Id: I707f8a443090b6f30e2940b721f9555ccdf49d32 Reviewed-on: https://review.coreboot.org/c/coreboot/+/38594 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2020-01-28commonlib: Add commonlib/bsdJulius Werner
This patch creates a new commonlib/bsd subdirectory with a similar purpose to the existing commonlib, with the difference that all files under this subdirectory shall be licensed under the BSD-3-Clause license (or compatible permissive license). The goal is to allow more code to be shared with libpayload in the future. Initially, I'm going to move a few files there that have already been BSD-licensed in the existing commonlib. I am also exracting most contents of the often-needed <commonlib/helpers.h> as long as they have either been written by me (and are hereby relicensed) or have an existing equivalent in BSD-licensed libpayload code. I am also relicensing <commonlib/compression.h> (written by me) and <commonlib/compiler.h> (same stuff exists in libpayload). Finally, I am extracting the cb_err error code definitions from <types.h> into a new BSD-licensed header so that future commonlib/bsd code can build upon a common set of error values. I am making the assumption here that the enum constants and the half-sentence fragments of documentation next to them by themselves do not meet the threshold of copyrightability. Change-Id: I316cea70930f131e8e93d4218542ddb5ae4b63a2 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38420 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
2020-01-24arch/x86/acpi_device: Add macros to define gpio interrupt with wakeAlex Levin
Add Provides ACPI_GPIO_IRQ_LEVEL_[LOW|HIGH]_WAKE versions to allow board to define a gpio irq as wake capable. Change-Id: I42f5084c5f0f5da0a4b39df77707b2f158bcc03d Signed-off-by: Alex Levin <levinale@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38445 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
2020-01-18arch/x86/post.c: Hide cmos_post_code from SMM contextMaulik V Vaghela
Code in SMM segment using cmos_post_code will give compiler error since cmos_post_code function is not getting compiled during SMM stage. Also as per patch discussion, CMOS uses a split IO transaction and it's not really safe to call cmos_post_code from SMM context. Thus we'll hide the call for SMM context. Change-Id: Iffdcccaad48e7ad96e068d07046630fbe4297e65 Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38370 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2020-01-14console/post: Split parts to arch/Kyösti Mälkki
Both IO port and cmos are currently arch/x86 only features. Change-Id: I010af3f645c0be38dd856657874c36103aebbdc2 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38187 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-01-13arch/x86/cf9_reset: Fix typoElyes HAOUAS
Change-Id: I4a8d29ab647837965e5341d019664f0ed401639a Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38311 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-01-13arch/x86: Fix typosElyes HAOUAS
Change-Id: I944b9bf8f518eff9b539769825174bf1544e6b34 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38310 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-01-12include/arch/romstage: Fix typoElyes HAOUAS
Change-Id: Ie0c80792210ded7f81184b60ba2b0b51c13db283 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38308 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-01-12include/arch/acpigen: Fix typoElyes HAOUAS
Change-Id: I277d4a36f3d76ff5e12f255165e2b08480c39167 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38307 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-01-09acpi: Be more ACPI compliant when generating _UIDPatrick Rudolph
* Add function to generate unique _UID using CRC32 * Add function to write the _UID based on a device's ACPI path ACPI devices that have the same _HID must use different _UID. Linux doesn't care about _UID if it's not used. Windows 10 verifies the ACPI code on boot and BSODs if two devices with the same _HID share the same _UID. Fixes BSOD seen on Windows 10. Change-Id: I47cd5396060d325f9ce338afced6af021e7ff2b4 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37695 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
2020-01-07drivers/pc80/rtc: Clean up some headersKyösti Mälkki
Change-Id: I5b3f1da6581dd80264aaa9618227ac64e1966e8d Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38180 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-01-07acpigen: Add function to generate unicode namesPatrick Rudolph
The ACPI spec 6.3 chapter 6.1.10 states that _STR has to return a buffer containing UTF-16 characters. Add function to generate Unicode names and use it for _STR. It will replace non-ASCII characters with '?'. Use the introduced function in IPMI driver. Fixes ACPI warning shown in fwts. Change-Id: I16992bd449e3a51f6a8875731cd45a9f43de5c8c Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37789 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-01-02arch/x86/Kconfig: Remove unused BOOTBLOCK_RESETSElyes HAOUAS
Change-Id: I792d271bdd2a93649bd9ca67c74b29fc5037542b Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37964 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2019-12-27cpu/intel/microcode: Apply more strict guard for assembly filesKyösti Mälkki
Change-Id: I8243be7c9a57402b2ac1cfa1c0552990d4a4ba74 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37891 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-12-27arch/x86: Remove <arch/cbfs.h>Kyösti Mälkki
There are no symmetrical headerfiles for other arch/ and after ROMCC_BOOTBLOCK and walkcbfs() removal this file ended up empty. Change-Id: Ice3047630ced1f1471775411b93be6383f53e8bb Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37886 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2019-12-27arch/x86: Remove walkcbfs()Kyösti Mälkki
This was used in romcc bootblocks. Change-Id: Ie0cfbf124922d04a3320404d667610ad369ec00b Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37885 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2019-12-27bootblock: Support normal/fallback mechanism againKyösti Mälkki
Change-Id: I7395e62f6682f4ef123da10ac125127a57711ec6 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37760 Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-12-26src/x86|cpu/intel: Hardcode FIT and IDMarshall Dawson
Revert two of the changes made in "arch|cpu/x86: Add Kconfig option for x86 reset vector" I6a814f7179ee4251aeeccb2555221616e944e03d The Intel FIT pointer and the ID section should be offsets from the top of flash, and aren't inherently tied to the reset vector or to bootblock. Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Change-Id: I2c9d5e2b2c4248c999d493a72d90cfddd92197cf Reviewed-on: https://review.coreboot.org/c/coreboot/+/37877 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Martin Roth <martinroth@google.com>
2019-12-26src: Remove unused include <string.h>Elyes HAOUAS
Change-Id: Ic6b66dd8fa387e67bb0ce609fb7e2553eeb66b3c Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37888 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2019-12-20arch/x86: Drop romcc bootblockArthur Heymans
Change-Id: I79accbe1d5a554fea75fbd866995f385f718421a Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37335 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2019-12-19arch/x86,soc/intel: Drop RESET_ON_INVALID_RAMSTAGE_CACHEKyösti Mälkki
If stage cache is enabled, we should not allow S3 resume to load firmware from non-volatile memory. This also adds board reset for failing to load postcar from stage cache. Change-Id: Ib6cc7ad0fe9dcdf05b814d324b680968a2870f23 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37682 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2019-12-19src/arch/x86: Build mainboard acpi_tables source if presentKarthikeyan Ramasubramanian
Current build rules require adding blank acpi_tables in some of the mainboards (eg. octopus, hatch). Update the build rules to compile the acpi_tables.c only if it is present. This will help to avoid adding blank acpi_tables.c source file. BUG=None TEST=Build test with octopus and hatch without blank acpi_table.c file. Change-Id: I7dfacc6f4c737699b22acd96e17c9426d33574bd Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37774 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Justin TerAvest <teravest@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
2019-12-19src: Remove unused 'include <arch/cpu.h>'Elyes HAOUAS
Change-Id: Iaa236f07aed52ccb8c4839047894a14a9446a109 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36080 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2019-12-19src/arch: Remove unused <stdlib.h>Elyes HAOUAS
Change-Id: I79f065703b5249ca9630b06de7142bc52675076e Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32820 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-12-19src/arch/arm: Remove unused 'include <stdint.h>'Elyes HAOUAS
Change-Id: I35f3559d68866a734666b3a18038bdae628703c8 Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37501 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-12-19arch/x86: Drop uses of ROMCC_BOOTBLOCKArthur Heymans
Change-Id: Ia0405fdd448cb31b3c6ca3b3d76e49e9f430bf74 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37339 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2019-12-19Drop ROMCC code and header guardsArthur Heymans
Change-Id: I730f80afd8aad250f26534435aec24bea75a849c Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37334 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
2019-12-16arch/x86: Make X86 stages select ARCH_X86Arthur Heymans
Also, don't define the default as this results in spurious lines in the .config. TEST: Build all boards with where config.h differed with BUILD_TIMELESS=1 and remained the same Change-Id: Ic77b696f493d7648f317f0ba0a27fdee5212961e Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31316 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-12-14bootblock: Provide some common prototypesKyösti Mälkki
The split of bootblock initialisation to cpu, northbridge and southbridge is not specific to intel at all, create new header <arch/bootblock.h> as AMD will want some of these too. Change-Id: I702cc6bad4afee4f61acf58b9155608b28eb417e Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37429 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2019-12-12acpigen: Add methods for mutex operationsPatrick Rudolph
Tested on Linux 5.2: Dumped and decoded the ACPI tables using iasl. Change-Id: I79310b0f9e2297cf8428d11598935164caf95968 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37637 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2019-12-11printf: Automatically prefix %p with 0xJulius Werner
According to the POSIX standard, %p is supposed to print a pointer "as if by %#x", meaning the "0x" prefix should automatically be prepended. All other implementations out there (glibc, Linux, even libpayload) do this, so we should make coreboot match. This patch changes vtxprintf() accordingly and removes any explicit instances of "0x%p" from existing format strings. How to handle zero padding is less clear: the official POSIX definition above technically says there should be no automatic zero padding, but in practice most other implementations seem to do it and I assume most programmers would prefer it. The way chosen here is to always zero-pad to 32 bits, even on a 64-bit system. The rationale for this is that even on 64-bit systems, coreboot always avoids using any memory above 4GB for itself, so in practice all pointers should fit in that range and padding everything to 64 bits would just hurt readability. Padding it this way also helps pointers that do exceed 4GB (e.g. prints from MMU config on some arm64 systems) stand out better from the others. Change-Id: I0171b52f7288abb40e3fc3c8b874aee14b9bdcd6 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37626 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: David Guckian
2019-12-06arch|cpu/x86: Add Kconfig option for x86 reset vectorMarshall Dawson
Prepare for an implementation supporting the reset vector in RAM and not the traditional 0xfffffff0. Add a Kconfig symbol that can be used in place of hardcoded values. Change-Id: I6a814f7179ee4251aeeccb2555221616e944e03d Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37485 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-12-05arm64: Print a char to UART early in exception handlerJulius Werner
Over time our printk() seems to acquire more and more features... which is nice, but it also makes it a little less robust when something goes wrong. If the wrong global is trampled by some buffer overflow, it suddenly doesn't print anymore. It would be nice to have at least some way to tell that we triggered a real exception in that case. With this patch, arm64 exceptions will print a '!' straight to the UART before trying any of the more fancy printk() stuff. It's not much but it should tell the difference between an exception and a hang and hopefully help someone dig in the right direction sooner. This violates loglevels (which is part of the point), but presumably when you have a fatal exception you shouldn't care about that anymore. Change-Id: I3b08ab86beaee55263786011caa5588d93bbc720 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37465 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-12-05arm64: Bump exception stack size to 2KBJulius Werner
To avoid trampling over interesting exception artifacts on the real stack, our arm64 systems switch to a separate exception stack when entering an exception handler. We don't want that to use up too much SRAM so we just set it to 512 bytes. I mean it just prints a bunch of registers, how much stack could it need, right? Quite a bit it turns out. The whole vtxprintf() call stack goes pretty deep, and aarch64 generally seems to be very generous with stack space. Just the varargs handling seems to require 128 bytes for some reason, and the other stuff adds up too. In the end the current implementation takes 1008 bytes, so bump the exception stack size to 2K to make sure it fits. Change-Id: I910be4c5f6b29fae35eb53929c733a1bd4585377 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37464 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-12-05arm64: Correctly unmask asynchronous SError interruptsJulius Werner
Arm CPUs have always had an odd feature that allows you to mask not only true interrupts, but also "external aborts" (memory bus errors from outside the CPU). CPUs usually have all of these masked after reset, which we quickly learned was a bad idea back when bringing up the first arm32 systems in coreboot. Masking external aborts means that if any of your firmware code does an illegal memory access, you will only see it once the kernel comes up and unmasks the abort (not when it happens). Therefore, we always unmask everything in early bootblock assembly code. When arm64 came around, it had very similar masking bits and we did the same there, thinking the issue resolved. Unfortunately Arm, in their ceaseless struggle for more complexity, decided that having a single bit to control this masking behavior is no longer enough: on AArch64, in addition to the PSTATE.DAIF bits that are analogous to arm32's CPSR, there are additional bits in SCR_EL3 that can override the PSTATE setting for some but not all cases (makes perfect sense, I know...). When aborts are unmasked in PSTATE, but SCR.EA is not set, then synchronous external aborts will cause an exception while asynchronous external aborts will not. It turns out we never intialize SCR in coreboot and on RK3399 it comes up with all zeroes (even the reserved-1 bits, which is super weird). If you get an asynchronous external abort in coreboot it will silently hide in the CPU until BL31 enables SCR.EA before it has its own console handlers registered and silently hangs. This patch resolves the issue by also initializing SCR to a known good state early in the bootblock. It also cleans up some bit defintions and slightly reworks the DAIF unmasking... it doesn't actually make that much sense to unmask anything before our console and exception handlers are up. The new code will mask everything until the exception handler is installed and then unmask it, so that if there was a super early external abort we could still see it. (Of course there are still dozens of other processor exceptions that could happen which we have no way to mask.) Change-Id: I5266481a7aaf0b72aca8988accb671d92739af6f Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37463 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-12-04Change all clrsetbits_leXX() to clrsetbitsXX()Julius Werner
This patch changes all existing instances of clrsetbits_leXX() to the new endian-independent clrsetbitsXX(), after double-checking that they're all in SoC-specific code operating on CPU registers and not actually trying to make an endian conversion. This patch was created by running sed -i -e 's/\([cs][le][rt]bits\)_le\([136][624]\)/\1\2/g' across the codebase and cleaning up formatting a bit. Change-Id: I7fc3e736e5fe927da8960fdcd2aae607b62b5ff4 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37433 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-12-03src: Add missing include <stdlib.h>Elyes HAOUAS
Change-Id: I17dc2fed6c6518daf5af286788c98c049088911e Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37366 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
2019-11-30kill CAR_GLOBAL_MIGRATION leftoversArthur Heymans
Change-Id: Ia3b2c10af63cd0cab42dc39f479cb69bc4df9124 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37055 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-30arch/x86/car.ld: Drop CAR_GLOBAL regionArthur Heymans
Change-Id: Id66fd0528987fb3e464d400cf9ccac98752fb8f5 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37327 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-30arch/*/*/early_variables.h: drop unused filesArthur Heymans
Kill off NO_GLOBAL_MIGRATION finally! Change-Id: Ieb7d9f5590b3a7dd1fd5c0ce2e51337332434dbd Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37054 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-11-30arch/x86/cache.h: Use ENV_CACHE_AS_RAM macroArthur Heymans
Change-Id: Ic7b088a04165bb24b9ebcebc1580a96ce0fdfcc8 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37063 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2019-11-29arch/x86/exception.c: Drop CAR_GLOBAL_MIGRATION supportArthur Heymans
Change-Id: I9e0d62d45e5b11a0c2f0867633cde2378f305ec8 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37048 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-31 21:12:27 +0000