CB_MEM_TAG is considered as an reserved memory. But we want to mange
this region in the payload and release this region when MTE is inactive.
Add CB_MEM_TAG memory range to usedmem_ranges to get a page table
mapping and mark it as used.
BUG=b:438666196,b:474306129
TEST=Check the tag region is wiped out in DEV mode.
Change-Id: I498407cbd44b1cc70ef769a63b8e40665ea67b28
Signed-off-by: Yidi Lin <yidilin@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90702
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch adds config ARCH_RISCV_RV64 to support build of riscv64
payloads. New files under arch/riscv contain:
- Basic ldscript and payload entry point.
- Functions for riscv64 io and cache operations.
- Default timer code based on mtime delegation.
- Default cb_header_ptr passing with device tree to payload.
Change-Id: Ieb3d456d5edda87a3a4886ccfc17a7824c630427
Signed-off-by: Ziang Wang <wangziang.ok@bytedance.com>
Signed-off-by: Dong Wei <weidong.wd@bytedance.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89646
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Six years ago we had a problem with not getting SError exceptions in
coreboot, and we fixed it by setting the right SCR_EL3 bits to force
exception routing to EL3 (commit bb345abbfc ("arm64: Correctly unmask
asynchronous SError interrupts")). Turns out that we have the same
problem in the payload but we never fixed it there. EL2 exception
routing works differently, so in order to achieve the same effect here
we can either enable the HCR_EL2 AMO, FMO and IMO bits (respectively),
or we can just enable the TGE bit which traps everything. This patch
chooses the latter, and it also ensures that the PSTATE exception
masking (DAIF) bits are in the expected state (although they usually
already are).
This state will persist after handoff to the kernel or chained payload,
and will prevent transition into EL1 if not cleared first. This should
be fine since any code taking control in EL2 should be expected to
correctly reintialize HCR_EL2 before handing off into EL1 (the Linux
kernel has always reinitialized this very early after its entry point).
If any selfboot() payloads are broken after this change, the payload
should be fixed to reinitialize HCR_EL2 to 0 (or desired value).
Change-Id: I339eded5a5344b5753c94be82e4f1e52e00b39f4
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90127
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Chen-Tsung Hsieh <chentsung@google.com>
In the arm64 exception handler in libpayload, we use the banked
exception stack pointer (SP_EL2, as opposed to the normal SP_EL0) not as
a normal stack pointer, but simply as a pointer to the exception_state
struct. This makes it easy to dump all registers into that struct on
context switch. We then immediately switch back to SP_EL0.
Yet, even though it is not really a stack for us, the aarch64
architecture still requires that SP_EL2 is 16 byte aligned at function
boundaries. If the exception_state struct is not thus aligned,
exceptions are broken. (I don't know why nobody ever hit this before,
but I hit it now while trying to pull in zstd code. I guess we just
don't have unaligned BSS entries that often and simply got lucky for a
while. 3 hours wasted on debugging. :( )
Change-Id: Id19184656fb9da68fe4bfdbc240c0c25b9d24cd6
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89926
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
We use mmu_ranges to track the list of memory ranges and their types for
MMU initialization. We also keep track of used memory ranges in
usedmem_ranges, to avoid them from being re-allocated in
mmu_alloc_range().
The problem is, the CBMEM range (CB_MEM_TABLE) is added to mmu_ranges,
but is never marked as "used" in usedmem_ranges. This potentially causes
any allocation (for example the framebuffer) to overlap with CBMEM. This
issue is observed when DMA_DEFAULT_SIZE is reduced from 32MB to 1MB [1].
Prior to that change, because there isn't enough space above the
coreboot table (with the 4GB upper limit) to fit the 32MB requested
region, the DMA heap is always allocated *below* the coreboot table. And
because the coreboot table is usually the lowest within CBMEM, the DMA
heap region is allocated *below* the whole CBMEM, which happens the
avoid the issue.
Fix the bug by adding CB_MEM_TABLE ranges to usedmem_ranges. The ranges
in usedmem_ranges don't need to be combined because they are not for MMU
initialization (and there's only one CB_MEM_TABLE range).
[1] commit aedc177f00 ("libpayload: arm64: Reduce DMA allocator space to 1MB")
BUG=b:424107889
TEST=emerge-skywalker libpayload
BRANCH=none
Change-Id: Ie9ecafc17546e524253c60ab684ec10ff3495998
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/88063
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Bartłomiej Grzesik <bgrzesik@google.com>
Reviewed-by: Jakub "Kuba" Czapiga <czapiga@google.com>
Unit tests should always use a mock ndelay() defined within each test.
Therefore, select ARCH_HAS_NDELAY for ARCH_MOCK.
Change-Id: I2680e37034d4d13058b3e778d72e63fc6ed18313
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87855
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Weak symbols don't work as expected when you want to override them from
within the same static library. This patch changes the arch_ndelay()
function so that instead of having a weak generic implementation, the
choice between generic implementation and an arch-specific override is
explicitly made by Kconfig. Let's also drop the "arch_" prefix and just
call this ndelay().
Change-Id: Ie4fe2734e0683fa3537e2ebcabfe067e7499463a
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87776
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Jakub "Kuba" Czapiga <czapiga@google.com>
Our mechanism to override the default (pure C) memory function
implementations (memset, memcpy, memmove) with architecture-specific
optimized assembly versions doesn't actually work: it turns out that
weak functions don't work as you'd naively expect when you pack them
together with a strong definition from a different object into a static
library. When a linker tries to resolve a symbol from a static library,
it just picks the first one it finds, even if it is weak. It doesn't
evaluate all objects in the library to see if there are other strong
definitions.
To fix this, this patch gets rid of the weak symbols and uses Kconfigs
instead. It adds an optimized memmove() implementation for x86 because
that makes things easier (then all architectures either override all
three functions or none of them). Also remove memcmp() from the
functions that can be overridden for now because nobody ever needed that
anyway.
Change-Id: Iedf9898247f1999e56fde3233fad8b7cb36b1269
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87766
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The x86 (AMD and Intel) spec defines it as Page-Map Level-4 Entry.
It is annoying when searching for the wrong abbreviation in the spec so
fix it everywhere it occurs.
source: Intel 64 spec April 2022 and AMD64 spec April 2024.
Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: I730235beea69b3720f080bbade083c2eeed26587
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86587
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Benjamin Doron <benjamin.doron00@gmail.com>
Reviewed-by: Andy Ebrahiem <ahmet.ebrahiem@9elements.com>
selfboot() doesn't really need to be architecture dependent. All
architectures are essentially doing the same thing with a normal
function call, only x86_32 needs an extra attribute. arm64 and x86 also
previously haven't been passing the coreboot table pointer, even though
they should. This patch fixes that.
Change-Id: If14040e38d968b5eea31cd6cd25efb1845a7b081
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86142
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The value used is not acceptable to BFD linker.
Change-Id: I0f134a96c596d69e10dd441b96184b119e9f1908
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84013
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Removed an extra space character from the `printf` format string in
`dump_exception_state` to ensure proper alignment of register values
when printed during exception handling.
BUG=b:336265399
TEST=Built and booted google/rex64 successfully.
Verified correct alignment in exception state dumps.
Change-Id: I8ff92775e32ee754967b1b0a43cd68971b4aadfc
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83047
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
ARM SoC supports FEAT_CCIDX after ARMv8.3. The register field
description of CCSIDR_EL1 is different when FEAT_CCIDX is implemented.
If numsets and associativity from CCSIDR_EL1 are not correct, the system
would hang during mmu_disable().
Rather than assuming that FEAT_CCIDX is not implemented, this patch
adds a check to dcache_apply_all to use the right register format.
Reference:
- https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/12770
BUG=b:317015456
TEST=mmu_disable works on the FEAT_CCIDX supported SoC.
Change-Id: I892009890f6ae889e87c877ffffd76a33d1dc789
Signed-off-by: Yidi Lin <yidilin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82636
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
This patch introduces x86_64 (64-bit) support to the payload, building
upon the existing x86 (32-bit) architecture. Files necessary for 64-bit
compilation are now guarded by the `CONFIG_LP_ARCH_X86_64` Kconfig
option.
BUG=b:242829490
TEST=Able to verify all valid combinations between coreboot and
payload with this patch.
Payload Entry Point Behavior with below code.
+----------------+--------------------+----------------------------+
| LP_ARCH_X86_64 | Payload Entry Mode | Description |
+----------------+--------------------+----------------------------+
| No | 32-bit | Direct protected mode init |
+----------------+--------------------+----------------------------+
| Yes | 32-bit | Protected to long mode |
+----------------+--------------------+----------------------------+
| Yes | 64-bit | Long mode initialization |
+----------------+--------------------+----------------------------+
Change-Id: I69fda47bedf1a14807b1515c4aed6e3a1d5b8585
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81968
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Integrate head.S directly into libc and remove all instances of head.o.
* Drop 'separate class' entry for head.S.
* Drop special treament for head.o inside lpgcc.
* Change the .text in `x86/head.S` to `.section .text._entry`.
* Drop arch/mock/head.c, initially added as a dummy file.
Change-Id: I156d781908fcc38d455bbf9f2c29e5ab95c7775a
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82478
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This moves the multiboot header into its own include file, simplifying
head.S and making it easier to include/exclude the multiboot header
based on config options.
BUG=b:242829490
TEST=Able to build and boot google/rex.
Change-Id: I59a22dfe36044b4dd64a5b028a134be7a7d02a48
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82533
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
When CONFIG_LP_MULTIBOOT is enabled, save the values of EAX and EBX
passed from the bootloader. This information can be useful for
multiboot payloads feature alone.
Change-Id: I98c2cd00206ee48eb0fc67edd9533032bcf3e5eb
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82040
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Dinesh Gehlot <digehlot@google.com>
It's been several years already since we announced the deprecation of
the legacy CBFS API for payloads. It's time to remove it completely.
Change-Id: I0ed157ac2d1376b8dff4537af9a63731064b45f6
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80650
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Jakub Czapiga <czapiga@google.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
The .inc suffix is confusing to various tools as it's not specific to
Makefiles. This means that editors don't recognize the files, and don't
open them with highlighting and any other specific editor functionality.
This issue is also seen in the release notes generation script where
Makefiles get renamed before running cloc.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: Ie7038712de8cc646632d5e7d29550e3260bf2c62
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80103
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Although a section ".bss.ttb_buffer" is created automatically for
'ttb_buffer' with the GCC option '-fdata-sections', specify the section
name explicitly to make the name stand out to code readers, and to
reduce the chance of accidentally changing the section name by renaming
the variable.
Change-Id: I2930f238f63b555c4caa65709768afa314d9cf87
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80014
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Moving it into the .ttb_buffer section will accidentally set the LOAD
flag. So, move it back to .bss.ttb_buffer section to prevent the binary
size bloating.
BUG=b:248610274
TEST=Make sure the device is still bootable with this change.
BRANCH=none
Cq-Depend: chromium:5173448
Change-Id: I9bb08878dd4be01d9ed3f96933f774dd6296f76e
Signed-off-by: Yi Chou <yich@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79800
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
If a framebuffer is already configured by coreboot, we need to ensure
that the framebuffer size is a multiple of GRANULE_SIZE before passing
to `mmu_add_memrange`. Otherwise, we would fail to allocate memory
region due to `sanity_check`.
Change-Id: Ia6a6400733ca10a61220087e87022f68c28e4789
Signed-off-by: Yidi Lin <yidilin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79451
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
We should make sure _stack/_estack and the other labels are consistent.
And _data & _edata is also useful to clean up the sensitive data on the
data section.
BUG=b:248610274
TEST=emerge-cherry libpayload
BRANCH=none
Cq-Depend: chromium:5052462
Change-Id: I589040f4db60b35813ea9f4ba9503244bd7def00
Signed-off-by: Yi Chou <yich@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79144
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
When cleaning the sensitive data in the memory, we will want to prevent
zero out the content of tbb_buffer. Move the ttb_buffer to a standalone
section will simplify the problem.
BUG=b:248610274
TEST=emerge-cherry libpayload
BRANCH=none
Change-Id: I610276cbe30552263d791860c15e5ad9a201c744
Signed-off-by: Yi Chou <yich@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79078
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The payload API of coreboot described in
https://www.coreboot.org/Payload_API does not reflect the current
handoff mechanism to hand the coreboot tables off. Therefore the
arguments supplied by coreboot (cbtable) will currently never be parsed
correctly and libpayload has to search for the coreboot tables by
iterating through memory.
This patch removes the old payload API implementation and just takes the
coreboot table pointer from the first argument on the stack.
Tested: started prodrive/atlas with coreinfo payload
Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: I51fb0cfc81043cbfe3fc9c8ea0776add2d6a42b2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74965
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
`stddef.h` should only provide the definitions defined by ISO or Posix.
The included `commonlib/bsd/helpers.h` provide a lot of non standard
definitions that may interfere with definitions from the application.
Change-Id: Ia71edbc3ffe6694ff4b971decf3a41f915264bc8
Signed-off-by: Thomas Heijligen <src@posteo.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70116
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
A new ChromeOS automated test will be introduced to check the cbmem log
of diagnostic boot mode. Because the diagnostic boot does not allow
booting into kernel, the test must perform AP reset and then check the
cbmem log afterwards. However, the memory content might not be written
back to memory (from CPU cache) during AP reset because of the cache
snooping mechanism on x86. Hence, some API to flush cache is needed.
Implement dcache_* to allow flushing cache proactively in x86. To avoid
unnecessary flush, check dma_coherent before calling dcache_* functions,
which will be always true in x86. Therefore, this change won't affect
the original functionality.
BUG=b:190026346
TEST=FW_NAME=primus emerge-brya libpayload
Cq-Depend: chromium:3841252
Signed-off-by: Hsin-Te Yuan <yuanhsinte@google.com>
Change-Id: I622d8b1cc652cbe477954a900885d12e6494d94d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66578
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Branding changes to unify and update Chrome OS to ChromeOS (removing the
space).
This CL also includes changing Chromium OS to ChromiumOS as well.
BUG=None
TEST=N/A
Change-Id: I39af9f1069b62747dbfeebdd62d85fabfa655dcd
Signed-off-by: Jon Murphy <jpmurphy@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65479
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Casts from integer to pointer are usually a case for phys_to_virt().
Change-Id: I861d435ff2361cdc26a2abd46d43b9346fa67ccc
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62246
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
When compiling libpayload using x86_64 toolchain for ARCH_MOCK compiler
reports an error about gerring address of packed member. Until now it
had to be disabled by passing -Wno-address-of-packed-member to
EXTRA_CFLAGS. This patch disables this warning.
Change-Id: I9a948fabe66f7297632ecaca8ec1bfa5c842b750
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60169
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This patch adds a new way of implementing flash access for libpayload.
Until now all reads had to be performed using cbfs_media, which is
obsolete. From now on all reads should be performed using
boot_device_read().
This patch also provides a default implementation of boot_device_read()
for x86 architecture.
Change-Id: I1babd2a8414ed9de3ca49903fcb4f036997b5ff3
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59492
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
coreboot stores much information in the CBMEM IMD. Until now it was
ignored. This patch makes use of these coreboot tables entries.
It also removes get_cbmem_addr() function as it is no longer needed.
Moreover, the coreboot tables entry CB_TAG_MRC_CACHE does not exist
anymore, as it is not created by the code. It was replaced by
CBMEM_ID_MRCDATA entry, so MRCDATA should now be accessible through
sysinfo structure field.
Change-Id: I5bd02a98ba2631f34014bc0f8e7ebd5a5ddd2321
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59491
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Mock architecture can be used to build libpayload using host compiler.
It can be enabled by setting ARCH_MOCK=y in the dotconfig. It sets
LITTLE_ENDIAN=y, as most machines these days use little-endian CPUs.
Libpayload will use HOSTCC as CC, HOSTLD as LD, etc. instead of tools
provided by xcompile.
Mock architecture configuration can be used by payloads for testing
purposes. Thanks to it, tests can be architecture-independent,
and can be executed without requiring compatible Kconfig options,
e.g. ARCH_ARM64=y for ARM64 machine. However, one has to provide
implementation for most architecture-specific functions present
in arch/* directories.
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: Ie3a6e6f6cad2f8a2e48a8e546d3b79c577653080
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57708
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Provide get_mmu_ranges() for ARM64 to let payloads could get
MMU ranges for all used memory regions.
BUG=b:171858277
TEST=Build in x86, arm, arm64.
emerge-zork libpayload depthcharge
emerge-nyan libpayload depthcharge
emerge-asurada libpayload depthcharge
Signed-off-by: Meng-Huan Yu <menghuan@google.com>
Change-Id: I39b24aefc9dbe530169b272e839d0e1e7c697742
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48113
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
We can skip the PIT-based TSC calibration if we can derive the invariant
TSC rate from CPUID/MSR data. This is necessary if the PIT is disabled,
which is the default, for instance, on Coffee Lake CPUs.
This implementation should cover all Intel Core i processors at least.
For older processors, we fall back to the PIT calibration.
Change-Id: Ic6607ee2a8b41c2be9dc1bb4f1e23e652bb33889
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34170
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Currently, the PCI bus gets scanned multiple times for various reasons
(e.g. to read the device class). Therefore, and in preparation to
CB:46416, introduce the pacc pointer in the sysinfo_t struct and scan
the PCI bus while gathering system information.
Change-Id: I496c5a3d78c7fb5d7c9f119a0c9a0314d54e729f
Signed-off-by: Felix Singer <felix.singer@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46348
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
In the presence of self-relocating payloads, it's safer to keep
physical addresses in `libsysinfo`. This updates all the references
to CBMEM entries that are not consumed inside libpayload code.
Change-Id: I3be64c8be8b46d00b457eafd7f80a8ed8e604030
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43580
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
