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2016-03-09Makefile: Add build-time overlap check for programs loaded after corebootJulius Werner
On non-x86 platforms, coreboot uses the memlayout.ld mechanism to statically allocate the different memory regions it needs and guarantees at build time that there are no dangerous overlaps between them. At the end of its (ramstage) execution, however, it usually loads a payload (and possibly other platform-specific components) that is not integrated into the coreboot build system and therefore cannot provide the same overlap guarantees through memlayout.ld. This creates a dangerous memory hazard where a new component could be loaded over memory areas that are still in use by the code-loading ramstage and lead to arbitrary memory corruption bugs. This patch fills this gap in our build-time correctness guarantees by adding the necessary checks as a new intermediate Makefile target on route to assembling the final image. It will parse the memory footprint information of the payload (and other platform-specific post-ramstage components) from CBFS and compare it to a list of memory areas known to be still in use during late ramstage, generating a build failure in case of a possible hazard. BUG=chrome-os-partner:48008 TEST=Built Oak while moving critical regions in the way of BL31 or the payload, observing the desired build-time errors. Built Nyan, Jerry and Falco without issues for good measure. Change-Id: I3ebd2c1caa4df959421265e26f9cab2c54909b68 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/13949 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-02-22die() when attempting to use bounce buffer on non-i386.Vladimir Serbinenko
Only i386 has code to support bounce buffer. For others coreboot would silently discard part of binary which doesn't work and is a hell to debug. Instead just die. Change-Id: I37ae24ea5d13aae95f9856a896700a0408747233 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: https://review.coreboot.org/13750 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-02-19lib/coreboot_table: add function to allow arch code to add recordsAaron Durbin
Add lb_arch_add_records() to allow the architecture code to generically hook into the coreboot table generation. BUG=chrome-os-partner:50214 BRANCH=glados TEST=With all subsequent patches confirmed lb_arch_add_records() is called when a strong symbol is provided. Change-Id: I7c69c0ff0801392bbcf5aef586a48388b624afd4 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13669 Tested-by: build bot (Jenkins) Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
2016-02-18arch/arm64: Compile arm-trusted-firmware with coreboot timestampPatrick Georgi
Update ATF codebase to a version that supports passing a timestamp and fix the format to what it accepts now (including quotes). This provides reproducible builds. Change-Id: I12a0a2ba1ee7921ad93a3a877ea50309136ab1ab Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/13726 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-02-11arches: lib: add main_decl.h for main() declarationAaron Durbin
It is silly to have a single header to declare the main() symbol, however some of the arches provided it while lib/bootblock.c relied on the arch headers to declare it. Just move the declaration into its own header file and utilize it. Change-Id: I743b4c286956ae047c17fe46241b699feca73628 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13681 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins)
2016-02-11arch/{arm64,riscv}: remove jmp_to_elf_entry() declarationAaron Durbin
jmp_to_elf_entry() is not defined anywhere. Remove it. Change-Id: I68f996a735f2ef3dd60cf69f9b72c3f1481cbb55 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13680 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-02-11arch: remove stage_exit()Aaron Durbin
It's no longer used. Remove it. Change-Id: Id6f4084ab9d671e94f0eee76bf36fad9a174ef14 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13678 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-02-10arch/arm64: Use correct SPSR.DAIF mask for BL31 and payloadJulius Werner
The PSTATE mask bits for Debug exceptions, external Aborts, Interrupts and Fast interrupts are usually best left unset: under normal circumstances none of those exceptions should occur in firmware, and if they do it's better to get a crash close to the code that caused it (rather than much later when the kernel first unmasks them). For this reason arm64_cpu_init unmasks them right after boot. However, the EL2 payload was still running with all mask bits set, which this patch fixes. BL31, on the other hand, explicitly wants to be entered with all masks set (see calling convention in docs/firmware-design.md), which we had previously not been doing. It doesn't seem to make a difference at the moment, but since it's explicitly specified we should probably comply. BRANCH=None BUG=None TEST=Booted Oak, confirmed with raw_read_daif() in payload that mask bits are now cleared. Change-Id: I04406da4c435ae7d44e2592c41f9807934bbc802 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 6ba55bc23fbde962d91c87dc0f982437572a69a8 Original-Change-Id: Ic5fbdd4e1cd7933c8b0c7c5fe72eac2022c9553c Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/325056 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13596 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-02-10arch/arm64: mmu: Spot check TTB memory attributesJulius Werner
On ARM64, the memory type for accessing page table descriptors during address translation is governed by the Translation Control Register (TCR). When the MMU code accesses the same descriptors to change page mappings, it uses the standard memory type rules (defined by the page table descriptor for the page that contains that table, or 'device' if the MMU is off). Accessing the same memory with different memory types can lead to all kinds of fun and hard to debug effects. In particular, if the TCR says "cacheable" and the page tables say "uncacheable", page table walks will pull stale entries into the cache and later mmu_config_range() calls will write directly to memory, bypassing those cache lines. This means the translations will not get updated even after a TLB flush, and later cache flushes/evictions may write the stale entries back to memory. Since page table configuration is currently always done from SoC code, we can't generally ensure that the TTB is always mapped as cacheable. We can however save developers of future SoCs a lot of headaches and time by spot checking the attributes when the MMU gets enabled, as this patch does. BRANCH=None BUG=None TEST=Booted Oak. Manually tested get_pte() with a few addresses. Change-Id: I3afd29dece848c4b5f759ce2f00ca2b7433374da Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: f3947f4bb0abf4466006d5e3a962bbcb8919b12d Original-Change-Id: I1008883e5ed4cc37d30cae5777a60287d3d01af0 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/323862 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/13595 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-01-29arch/arm64: Override bl31 timestamp with coreboot build timestampPatrick Georgi
If coreboot's build process is reproducible (eg. using the latest git timestamp as source), bl31 is, too. This requires an arm-trusted-firmware side merge first (in progress) and an update of our reference commit for the submodule, but it also doesn't hurt anything because it merely sets a variable that currently goes unused. Change-Id: If139538a2fab5b3a70c67f4625aa2596532308f7 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/13497 Tested-by: build bot (Jenkins) Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
2016-01-28Makefile: Make full use of src-to-obj macroNico Huber
There were several spots in the tree where the path to a per class object file was hardcoded. To make use of the src-to-obj macro for this, it had to be moved before the inclusion of subdirs. Which is fine, as it doesn't have dependencies beside $(obj). Tested by verifying that the resulting coreboot.rom files didn't change for all of Jenkins' abuild configurations. Change-Id: I2eb1beeb8ae55872edfd95f750d7d5a1cee474c4 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/13180 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2016-01-26src/arch: Update license headers missing paragraph 2Martin Roth
For the coreboot license header, we want to use two paragraphs. See the section 'Common License Header' in the coreboot wiki for more details. Change-Id: I4a43f3573364a17b5d7f63b1f83b8ae424981b18 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/13118 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-01-22arch/arm64: Extend verstageItamar
Add more code to verstage [pg: split downstream commit into multiple commits] Change-Id: I578a69a1e43aad8c90c3914efd09d556920f728e Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 2827aa08ff8712c0245a22378f3ddb0ca054255d Original-Change-Id: I94a9ee2c00e25a37a92133f813d0cd11a3503656 Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/292662 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/12612 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
2016-01-21console: Simplify bootblock console Kconfig selection logicAlexandru Gagniuc
Instead of depending BOOTBLOCK_CONSOLE on a set of architectures, allow the arch or platform to specify whether it can provide a C environment. This simplifies the selection logic. Change-Id: Ia3e41796d9aea197cee0a073acce63761823c3aa Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com> Reviewed-on: https://review.coreboot.org/12871 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2016-01-18header files: Fix guard name comments to match guard namesMartin Roth
This just updates existing guard name comments on the header files to match the actual #define name. As a side effect, if there was no newline at the end of these files, one was added. Change-Id: Ia2cd8057f2b1ceb0fa1b946e85e0c16a327a04d7 Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/12900 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2016-01-13arch/arm64: add missing license headersMartin Roth
These were all written as part of the coreboot project, so get the standard coreboot license header. Change-Id: I4fccc8055755816be64e9e1a185f1e6fcb2b89ae Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/12911 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-12-10lib: remove assets infrastructureAaron Durbin
Now that only CBFS access is supported for finding resources within the boot media the assets infrastructure can be removed. Remove it. BUG=chromium:445938 BRANCH=None TEST=Built and ran on glados. Change-Id: I383fd6579280cf9cfe5a18c2851baf74cad004e9 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/12690 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-12-03arch/arm64: introduce mmu to bootblock and romstageJimmy Huang
We need mmu interfaces in these two stages for, 1. bootblock: to support mmu initialization in bootblock 2. romstage: to be able to add dram range to mmu table BRANCH=none BUG=none TEST=build pass Change-Id: I56dea5f958a48b875579f546ba17a5dd6eaf159c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: cf72736bda2233f8e0bdd7a8ca3245f1d941ee86 Original-Change-Id: I1e27c0a0a878f7bc0ff8712bee640ec3fd8dbb8b Original-Signed-off-by: Jimmy Huang <jimmy.huang@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/292665 Original-Commit-Ready: Yidi Lin <yidi.lin@mediatek.com> Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/12585 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
2015-12-03arch/arm64: add DMA_COHERENT region macros to memlayoutJimmy Huang
BRANCH=none BUG=none TEST=build pass Change-Id: Ia997ce97ad42234ab020af7bd007d57d7191ee86 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 604ac738e33fdfbaf093989ea13162c8506b9360 Original-Change-Id: I636a1a38d0f5af97926d4446f3edb91a359cce4c Original-Signed-off-by: Jimmy Huang <jimmy.huang@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/292551 Original-Commit-Ready: Yidi Lin <yidi.lin@mediatek.com> Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/12584 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-12-01build system: strip quotes from CONFIG_CBFS_PREFIX in a single locationPatrick Georgi
Instead of having to remember to strip the quotes everywhere so that string comparisons (of which there are a few) match up, do it right at the beginning. Fixes building the image with a .config where CONFIG_CBFS_PREFIX contains quotes. Change-Id: I4d63341cd9f0bc5e313883ef7b5ca6486190c124 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/12578 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
2015-11-17arm64: tegra132: tegra210: Remove old arm64/stage_entry.SJulius Werner
This patch removes the old arm64/stage_entry.S code that was too specific to the Tegra SoC boot flow, and replaces it with code that hides the peculiarities of switching to a different CPU/arch in ramstage in the Tegra SoC directories. BRANCH=None BUG=None TEST=Built Ryu and Smaug. !!!UNTESTED!!! Change-Id: Ib3a0448b30ac9c7132581464573efd5e86e03698 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/12078 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-11-17rules.h: Add ENV_ macros to detect current architectureJulius Werner
This patch expands the existing ENV_<stage> macros in <rules.h> with a set of ENV_<arch> macros which can be used to detect which architecture the current compilation unit is built for. These are more consistent than compiler-defined macros (like '#ifdef __arm__') and will make it easier to write small, architecture-dependent differences in common code (where we currently often use IS_ENABLED(CONFIG_ARCH_...), which is technically incorrect in a world where every stage can run on a different architecture, and merely kinda happened to work out for now). Also remove a vestigal <arch/rules.h> from ARM64 which was no longer used, and genericise ARM subarchitecture Makefiles a little to make things like __COREBOOT_ARM_ARCH__ available from all file types (including .ld). BUG=None TEST=Compiled Falco, Blaze, Jerry and Smaug. Change-Id: Id51aeb290b5c215c653e42a51919d0838e28621f Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/12433 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
2015-11-16arm64: Implement generic stage transitions for non-Tegra SoCsJulius Werner
The existing arm64 architecture code has been developed for the Tegra132 and Tegra210 SoCs, which only start their ARM64 cores in ramstage. It interweaves the stage entry point with code that initializes a CPU (and should not be run again if that CPU already ran a previous stage). It also still contains some vestiges of SMP/secmon support (such as setting up stacks in the BSS instead of using the stage-peristent one from memlayout). This patch splits those functions apart and makes the code layout similar to how things work on ARM32. The default stage_entry() symbol is a no-op wrapper that just calls main() for the current stage, for the normal case where a stage ran on the same core as the last one. It can be overridden by SoC code to support special cases like Tegra. The CPU initialization code is split out into armv8/cpu.S (similar to what arm_init_caches() does for ARM32) and called by the default bootblock entry code. SoCs where a CPU starts up in a later stage can call the same code from a stage_entry() override instead. The Tegra132 and Tegra210 code is not touched by this patch to make it easier to review and validate. A follow-up patch will bring those SoCs in line with the model. BRANCH=None BUG=None TEST=Booted Oak with a single mmu_init()/mmu_enable(). Built Ryu and Smaug. Change-Id: I28302a6ace47e8ab7a736e089f64922cef1a2f93 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/12077 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-11-11arm/arm64: Generalize bootblock C entry pointJulius Werner
When we first added ARM support to coreboot, it was clear that the bootblock would need to do vastly different tasks than on x86, so we moved its main logic under arch/. Now that we have several more architectures, it turns out (as with so many things lately) that x86 is really the odd one out, and all the others are trying to do pretty much the same thing. This has already caused maintenance issues as the ARM32 bootblock developed and less-mature architectures were left behind with old cruft. This patch tries to address that problem by centralizing that logic under lib/ for use by all architectures/SoCs that don't explicitly opt-out (with the slightly adapted existing BOOTBLOCK_CUSTOM option). This works great out of the box for ARM32 and ARM64. It could probably be easily applied to MIPS and RISCV as well, but I don't have any of those boards to test so I'll mark them as BOOTBLOCK_CUSTOM for now and leave that for later cleanup. BRANCH=None BUG=None TEST=Built Jerry and Falco, booted Oak. Change-Id: Ibbf727ad93651e388aef20e76f03f5567f9860cb Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/12076 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2015-11-11arm64: mmu: Make page table manipulation work across stagesJulius Werner
In order to have a proper runtime-modifyable page table API (e.g. to remap DRAM after it was intialized), we need to remove any external bookkeeping kept in global variables (which do not persist across stages) from the MMU code. This patch implements this in a similar way as it has recently been done for ARM32 (marking free table slots with a special sentinel value in the first PTE that cannot occur as part of a normal page table). Since this requires the page table buffer to be known at compile-time, we have to remove the option of passing it to mmu_init() at runtime (which I already kinda deprecated before). The existing Tegra chipsets that still used it are switched to instead define it in memlayout in a minimally invasive change. This might not be the best way to design this overall (I think we should probably just throw the tables into SRAM like on all other platforms), but I don't have a Tegra system to test so I'd rather keep this change low impact and leave the major redesign for later. Also inlined some single-use one-liner functions in mmu.c that I felt confused things more than they cleared up, and fixed an (apparently harmless?) issue with forgetting to mask out the XN page attribute bit when casting a table descriptor to a pointer. BRANCH=None BUG=None TEST=Compiled Ryu and Smaug. Booted Oak. Change-Id: Iad71f97f5ec4b1fc981dbc8ff1dc88d96c8ee55a Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/12075 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2015-11-07arm64: Remove cpu intialization through device-treeFurquan Shaikh
Since, SMP support is removed for ARM64, there is no need for CPU initialization to be performed via device-tree. Change-Id: I0534e6a93c7dc8659859eac926d17432d10243aa Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: http://review.coreboot.org/11913 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner <jwerner@chromium.org>
2015-11-07arm64: Remove SMP supportFurquan Shaikh
As ARM Trusted Firmware is the only first class citizen for booting arm64 multi-processor in coreboot remove SMP support. If SoCs want to bring up MP then ATF needs to be ported and integrated. Change-Id: Ife24d53eed9b7a5a5d8c69a64d7a20a55a4163db Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: http://review.coreboot.org/11909 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner <jwerner@chromium.org>
2015-11-07arm64: remove spin table supportAaron Durbin
As ARM Trusted Firmware is the only first class citizen for booting arm64 multi-processor in coreboot remove spintable support. If SoCs want to bring up MP then ATF needs to be ported and integrated. Change-Id: I1f38b8d8b0952eee50cc64440bfd010b1dd0bff4 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11908 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner <jwerner@chromium.org>
2015-11-07arm64: remove ARCH_ARM64_CORTEX_A57_POWER_DOWN_SUPPORTAaron Durbin
With the removal of secmon from coreboot there are no power down operations required. As such remove the A57 power down support. Change-Id: I8eebb0ecd87b5e8bb3eaac335d652689d7f57796 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11898 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-11-07arm64: remove secmonAaron Durbin
It's been decided to only support ARM Trusted Firmware for any EL3 monitor. That means any SoC that requires PSCI needs to add its support for ATF otherwise multi-processor bring up won't work. Change-Id: Ic931dbf5eff8765f4964374910123a197148f0ff Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11897 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner <jwerner@chromium.org>
2015-10-31tree: drop last paragraph of GPL copyright headerPatrick Georgi
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-10-11vboot: remove remnants of VBOOT_STUBAaron Durbin
For vboot1 there was an rmodule that was loaded and ran to do the firmware verification. That's no longer used so remove the last vestiges of VBOOT_STUB. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built glados. Change-Id: I6b41544874bef4d84d0f548640114285cad3474e Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11817 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-28arm64: mmu: Prevent CPU prefetch instructions from device memoryJimmy Huang
Set XN bit of block upper attribute to device memory in mmu. CPU may speculatively prefetch instructions from device memory, but the IO subsystem of some implementation may not support this operation. Set this attribute to device memory mmu entries can prevent CPU from prefetching device memory. BRANCH=none BUG=none TEST=build and booted to kernel on oak-rev3 with dcm enabled. Change-Id: I52ac7d7c84220624aaf6a48d64b9110d7afeb293 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 7b01a4157cb046a5e75ea7625060a602e7a63c3c Original-Change-Id: Id535e990a23b6c89123b5a4e64d7ed21eebed607 Original-Signed-off-by: Jimmy Huang <jimmy.huang@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/302301 Original-Commit-Ready: Yidi Lin <yidi.lin@mediatek.com> Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/11722 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-09linking: add and use LDFLAGS_commonAaron Durbin
Add an LDFLAGS_common variable and use that for each stage during linking within all the architectures. All the architectures support gc-sections, and as such they should be linking in the same way. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built rambi and analyzed the relocatable ramstage. Change-Id: I41fbded54055455889b297b9e8738db4dda0aad0 Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11522 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
2015-09-09rmodule: use program.ld for linkingAaron Durbin
Bring rmodule linking into the common linking method. The __rmodule_entry symbol was removed while using a more common _start symbol. The rmodtool will honor the entry point found within the ELF header. Add ENV_RMODULE so that one can distinguish the environment when generating linker scripts for rmodules. Lastly, directly use program.ld for the rmodule.ld linker script. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built rambi and analyzed the relocatable ramstage, sipi_vector, and smm rmodules. Change-Id: Iaa499eb229d8171272add9ee6d27cff75e7534ac Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11517 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-07Drop "See file CREDITS..." commentStefan Reinauer
coreboot has no CREDITS file. Change-Id: Iaa4686979ba1385b00ad1dbb6ea91e58f5014384 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/11514 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-09-05symbols: add '_' to pci_drivers and cpu_drivers symbolsAaron Durbin
In order to prepare for more unification of the linker scripts prefix pci_drivers, epci_drivers, cpu_drivers, and ecpu_drivers with an underscore. BUG=chrome-os-partner:44827 BRANCH=None TEST=Built different boards includes ones w/ and w/o relocatable ramstage. Change-Id: I8918b38db3b754332e8d8506b424f3c6b3e06af8 Signed-off-by: Aaron Durbin <adubin@chromium.org> Reviewed-on: http://review.coreboot.org/11506 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-08-31armv7/arm64: remove timestamp.cAaron Durbin
The src/lib/timestamp.c already has an implementation using timer_monotonic_get() for timestamp_get(). Use that instead of duplicating the logic. BUG=chrome-os-partner:44669 BRANCH=None TEST=None Change-Id: If17be86143f217445bd64d67ceee4355fa482d39 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/11468 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2015-08-28arm64: xcompile: Add support for A53 erratum 843419Julius Werner
This patch adds support to enable a linker workaround to a hardware erratum on some early Cortex-A53 revisions. Since the linker option was added very recently, we use xcompile to test whether the toolchain supports it first. It is also guarded by a Kconfig since only a few ARM64 SoCs will need this and it incurs a performance penalty. BRANCH=none BUG=none TEST=Turned it on or off for Smaug and confirmed that it (dis)appeared in verbose make output accordingly. Change-Id: I01c9642d3cf489134645f0db6f79f1c788ddb00d Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Commit-Id: 57128785760c4dfa32d6e6d764756443a9323cb7 Original-Change-Id: Ia5dd124f484e38460d75fb864304e7e8b18d16b7 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/294745 Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11403 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2015-08-28arm64: Fix 'verstage-objs: command not found' errorYidi Lin
Fix following compilation error. LINK cbfs/fallback/verstage.debug /bin/sh: verstage-objs: command not found /usr/x86_64-pc-linux-gnu/aarch64-cros-linux-gnu/binutils-bin/2.24/ld.bfd.real: warning: cannot find entry symbol stage_entry; defaulting to 00000000000d7000 BRANCH=chromeos-2015.07 BUG=none TEST=emerge-oak coreboot Change-Id: I30e4c43625b2d1d076f24e8c2639ce951839661b Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Commit-Id: 2a8936cdf34d315f580819df682335b2998f044f Original-Change-Id: I9afd57a5a868a348dff2c66cad0a8a09cdb2e911 Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/292557 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11402 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-08-28arm64: declare do_dcsw_op as functionJimmy Huang
do_dcsw_op is coded as a label, it's possible that linker will place do_dcsw_op on unaligned address. To avoid this situation, we declare do_dcsw_op as a function. Also explicitly set the 2nd argument of ENTRY_WITH_ALIGN(name, bits) to 2. do_dcsw_op: cbz x3, exit c103d: b40003e3 cbz x3, c10b9 <exit> mov x10, xzr c1041: aa1f03ea mov x10, xzr adr x14, dcsw_loop_table // compute inner loop address BRANCH=none BUG=none TEST=build and check do_dcsw_op in elf file Change-Id: Ieb5f4188d6126ac9f6ddb0bfcc67452f79de94ad Signed-off-by: Patrick Georgi <patrick@georgi-clan.de> Original-Commit-Id: 4ee26b76089fab82cf4fb9b21c9f15b29e57b453 Original-Change-Id: Id331e8ecab7ea8782e97c10b13e8810955747a51 Original-Signed-off-by: Jimmy Huang <jimmy.huang@mediatek.com> Original-Reviewed-on: https://chromium-review.googlesource.com/293660 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Commit-Queue: Yidi Lin <yidi.lin@mediatek.com> Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com> Reviewed-on: http://review.coreboot.org/11395 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-29arm, arm64, mips: Add rough static stack size checks with -Wstack-usageJulius Werner
We've seen an increasing need to reduce stack sizes more and more for space reasons, and it's always guesswork because no one has a good idea how little is too litte. We now have boards with 3K and 2K stacks, and old pieces of common code often allocate large temporary buffers that would lead to very dangerous and hard to detect bugs when someone eventually tries to use them on one of those. This patch tries improve this situation at least a bit by declaring 2K as the minimum stack size all of coreboot code should work with. It checks all function frames with -Wstack-usage=1536 to make sure we don't allocate more than 1.5K in a single buffer. This is of course not a perfect test, but it should catch the most common situation of declaring a single, large buffer in some close-to-leaf function (with the assumption that 0.5K is hopefully enough for all the "normal" functions above that). Change one example where we were a bit overzealous and put a 1K buffer into BSS back to stack allocation, since it actually conforms to this new assumption and frees up another kilobyte of that highly sought-after verstage space. Not touching x86 with any of this since it's lack of __PRE_RAM__ BSS often requires it to allocate way more on the stack than would usually be considered sane. BRANCH=veyron BUG=None TEST=Compiled Cosmos, Daisy, Falco, Blaze, Pit, Storm, Urara and Pinky, made sure they still build as well as before and don't show any stack usage warnings. Change-Id: Idc53d33bd8487bbef49d3ecd751914b0308006ec Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 8e5931066575e256dfc2295c3dab7f0e1b65417f Original-Change-Id: I30bd9c2c77e0e0623df89b9e5bb43ed29506be98 Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/236978 Original-Reviewed-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9729 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-21arm64: Set LOG_LEVEL=0 for BL31 if coreboot does not use serialFurquan Shaikh
Even if DEBUG=0, BL31 puts NOTICE(..) messages on serial console. Set LOG_LEVEL=0 if coreboot does not use serial. BUG=None BRANCH=None TEST=Compiles successfully and no console output from bl31 for production images. Change-Id: Ie77bcac3e2a0d314545b6811327c413536c77fb9 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: e8e3bcbf6249c80850a87dd66f34d3ff36158641 Original-Change-Id: I1415a3816cd2fa9dd05bcbd36ac0abc3f2759960 Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/286150 Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/11014 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins)
2015-07-13arm64: Define stage_entry as weak symbolFurquan Shaikh
This allows SoCs/CPUs to have custom stage_entry in order to apply any fixups that need to run before standard cpu reset procedure. BUG=chrome-os-partner:41877 BRANCH=None TEST=Compiles successfully Change-Id: Iaae7636349140664b19e81b0082017b63b13f45b Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 498d04b0e9a3394943f03cad603c30ae8b3805d4 Original-Change-Id: I9a005502d4cfcb76017dcae3a655efc0c8814a93 Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/284867 Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org> Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/10897 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-13arm64/a57: Move cortex_a57.h under include directoryFurquan Shaikh
BUG=chrome-os-partner:41877 BRANCH=None TEST=Compiles successfully Change-Id: I8a94176a3faacb25ae5e9eaeaac4011ddf5af6a1 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 802cba6f28a4e683256e8ce9fb6395acecdc9397 Original-Change-Id: I3a5983d4a40466bc0aa8ab3bd8430ab6cdd093cc Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/284868 Original-Reviewed-by: Yen Lin <yelin@nvidia.com> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org> Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/10898 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-12Change #ifdef and #if defined CONFIG_ bools to #if IS_ENABLED()Martin Roth
Kconfigs symbols of type bool are always defined, and can be tested with the IS_ENABLED() macro. symbol type except string. Change-Id: Ic4ba79f519ee2a53d39c10859bbfa9c32015b19d Signed-off-by: Martin Roth <gaumless@gmail.com> Reviewed-on: http://review.coreboot.org/10885 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-07-09arm64: Print sp value when dumping registers for exceptionFurquan Shaikh
BUG=None BRANCH=None TEST=Compiles successfully, sp verified during exception Change-Id: Idbeb93b1dbf163e2d86cd42369941ff98a3d2d9e Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: ca73b40f0248497143b6ab42bd0f5cc6cddf7713 Original-Change-Id: I38ee403200acb0e3d9015231c274568930b58987 Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/283542 Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/10842 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-06-30arch/arm64: Avoid race condition when building bl31Patrick Georgi
The arm-trusted-firmware build system may not create the final bl31.elf file atomically, confusing our make to try to use it before it's ready. Hence insert a (hopefully, but not guaranteed to be atomic) file move. Change-Id: Iffc80467e0f4bbc96fc62414d4abfaa7b42634f4 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/10700 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
2015-06-30arch/arm64: Fix compilation without CONFIG_SMPPatrick Georgi
Compilers aren't happy with a declaration of boot_cpu() after defining boot_cpu to 1. Change-Id: I22d0db61646f3e226e5996fa94223ffbb6b760e5 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/10696 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-06-30arm64: Fix Kconfig issues for secure OS loadingFurquan Shaikh
BUG=chrome-os-partner:40713 BRANCH=None TEST=Compiles successfully with and without SECURE_OS config selected Change-Id: I93e9726712a1992f1788d60891d5f6917bba3767 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 535ac9ffd1199b047734da0a9ee257d468b3fbb1 Original-Change-Id: Ic70a0b57816a5f3af548edafd82ba3783825a174 Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/274416 Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org> Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/10694 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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