Some eMMCs (for example, Kingston-EMMC64G-TX29-HP) may enter the ready
state by sending CMD1 twice. If it is in the ready state, then the
payload (for example, depthcharge) will not send CMD1, but the access
mode is only available from the response of CMD1.
Therefore, we need to pass the access mode to the payload by defining
the following types:
- MMC_STATUS_CMD1_READY: in ready state and access mode is byte mode.
- MMC_STATUS_CMD1_READY_HCS: in ready state and access mode is sector
mode.
BUG=b:234672726
BRANCH=cherry
TEST=boot ok
Signed-off-by: Wenbin Mei <wenbin.mei@mediatek.com>
Change-Id: Iad905781d8ba0105911cf87a6b845cd8df57521e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65054
Reviewed-by: Yidi Lin <yidilin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
This patch contains several minor cleanups related to compiler.h:
- Replace __always_unused() (which is a Linux-specific concept that
doesn't make sense without also having __maybe_unused(), and had zero
uses in the codebase) with __unused() which moves here from helpers.h
- Add __underscores__ to the names of all attributes in the compiler
attribute shorthand macros. This is necessary to make them work in
files where the same name was already used for an identifier (e.g.
cbfstool/cbfs.h's `unused` array of file types).
- Remove libpayload's own copy of compiler.h and make it directly pull
in the commonlib/bsd copy.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I9644da594bb69133843c6b7f12ce50b2e45fd24b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64737
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Save the regular boot MTRRs that are restored on the S3 path during
the CPU init in cbmem instead of storing them to the SPI flash.
This was probably done because historically this code run with late
cbmem init (in ramstage).
TESTED on pcengines/apu1 and lenovo/g505s: S3 resume works fine.
Change-Id: Ia58e7cd1afb785ba0c379ba75ef6090b56cb9dc6
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44294
Reviewed-by: Mike Banon <mikebdp2@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
The Intel Firmware Interface Table (FIT) is a bit of an annoying outlier
among CBFS files because it gets manipulated by a separate utility
(ifittool) after cbfstool has already added it to the image. This will
break file hashes created for CBFS verification.
This is not actually a problem when booting, since coreboot never
actually loads the FIT from CBFS -- instead, it's only in the image for
use by platform-specific mechanisms that run before coreboot's
bootblock. But having an invalid file hash in the CBFS image is
confusing when you want to verify that the image is correctly built for
verification.
This patch adds a new CBFS file type "intel_fit" which is only used for
the intel_fit (and intel_fit_ts, if applicable) file containing the FIT.
cbfstool will avoid generating and verifying file hashes for this type,
like it already does for the "bootblock" and "cbfs header" types. (Note
that this means that any attempt to use the CBFS API to actually access
this file from coreboot will result in a verification error when CBFS
verification is enabled.)
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I1c1bb6dab0c9ccc6e78529758a42ad3194cd130c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64736
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
There are too many "FIT" in firmware land. In order to reduce possible
confusion of CBFS_TYPE_FIT with the Intel Firmware Interface Table, this
patch renames it to CBFS_TYPE_FIT_PAYLOAD (including the cbfstool
argument, so calling scripts will now need to replace `-t fit` with `-t
fit_payload`).
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I826cefce54ade06c6612c8a7bb53e02092e7b11a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64735
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
In the last coreboot leadership meeting, the doxygen documentation was
declared to be dead. Remove it.
Doxygen style comments can still be added to files, and we may generate
doxygen based documentation, but it won't be for the entire project, but
instead just for those individual areas where it is being maintained.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I8983a20793786a18d2331763660842fea836aa2a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64228
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Add 'lb_fill_pcie' function to pass PCIe information from coreboot to
libpayload, and add CB_ERR_NOT_IMPLEMENTED to the cb_err enum for the
__weak function.
ARM platform usually does not have common address for PCIe to access the
configuration space of devices. Therefore, new API is added to pass the
base address of PCIe controller for payloads to access PCIe devices.
TEST=Build pass and boot up to kernel successfully via SSD on Dojo
board, here is the SSD information in boot log:
== NVME IDENTIFY CONTROLLER DATA ==
PCI VID : 0x15b7
PCI SSVID : 0x15b7
SN : 21517J440114
MN : WDC PC SN530 SDBPTPZ-256G-1006
RAB : 0x4
AERL : 0x7
SQES : 0x66
CQES : 0x44
NN : 0x1
Identified NVMe model WDC PC SN530 SDBPTPZ-256G-1006
BUG=b:178565024
BRANCH=cherry
Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com>
Change-Id: I6cdce21efc66aa441ec077e6fc1d5d1c6a9aafb0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63251
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Shelley Chen <shchen@google.com>
Chrome OS is experimenting with a hypervisor layer that boots after
firmware, but before the OS. From the OS' perspective, it can be
considered an extension of firmware, and hence it makes sense to emit
timestamp to track hypervisor boot latency. This change adds
timestamp IDs in the 1200-1300 range for this purpose.
BUG=b:217638034
BRANCH=none
TEST=Manual: cbmem -a TS_CRHV_BOOT to add a timestamp, cbmem -t to
verify that it got added to the timestamp table.
Change-Id: If70447eea2c2edf42b43e0198b827c1348b935ea
Signed-off-by: Mattias Nissler <mnissler@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64226
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This patch just adds some comments to the recently merged mem_chip_info
struct for communicating memory type information to the payload/OS, to
clarify the expected format in which values are to be written into the
fields.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I2c28b3bdcdb13b7f270fb87a8f06e2cf448cddec
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63944
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
Include <stddef.h> since we need it for 'size_t'.
Unused <stdlib.h> found using:
diff <(git grep -l '#include <stdlib.h>' -- src/) <(git grep -l 'memalign(\|malloc(\|calloc(\|free(' -- src/)
Change-Id: I3c2668013c16d6771268e8739b1370968c2e120b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60620
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <martinroth@google.com>
Replace 'struct lb_uint64' with 'typedef __aligned(4) uint64_t
lb_uint64_t', and remove unpack_lb64/pack_lb64 functions since it's no
longer needed.
Also replace 'struct cbuint64' with 'cb_uint64_t' and remove
'cb_unpack64' in libpayload for compatible with lb_uint64_t.
Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com>
Change-Id: If6b037e4403a8000625f4a5fb8d20311fe76200a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63494
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Add a helper function mem_chip_info_size() as the size of
mem_chip_info structure is used in multiple places.
BUG=b:182963902,b:177917361
TEST=Validated on qualcomm sc7280 development board
Signed-off-by: Ravi Kumar Bokka <rbokka@codeaurora.org>
Change-Id: Iaada45d63b82c28495166024a9655d871ba65b20
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63407
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Flame graphs are used to visualize hierarchical data, like call stacks.
Timestamps collected by coreboot can be processed to resemble
profiler-like output, and thus can be feed to flame graph generation
tools.
Generating flame graph using https://github.com/brendangregg/FlameGraph:
cbmem -S > trace.txt
FlameGraph/flamegraph.pl --flamechart trace.txt > output.svg
TEST=Run on coreboot-enabled device and extract timestamps using
-t/-T/-S options
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: I3a4e20a267e9e0fbc6b3a4d6a2409b32ce8fca33
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62474
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Some solutions require readable form of timestamps, which does not
contain spaces. Current descriptive timestamp names do not meet this
criteria. Also, mapping enums to their text representation allows for
quick grepping (use of grep command) to find relevant timestamps in the
code.
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: Ifd49f20d6b00a5bbd21804cea3a50b8cef074cd1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62709
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
The ACPI RSDP can only be found in:
- legacy BIOS region
- via UEFI service
On some systems like ARM that legacy BIOS region is not an option, so
to avoid needing UEFI it makes sense to expose the RSDP via a coreboot
table entry.
This also adds the respective unit test.
Change-Id: I591312a2c48f0cbbb03b2787e4b365e9c932afff
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62573
Reviewed-by: Lance Zhao
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
cb_err_t was meant to be used in place of `enum cb_err` in all
situations, but the choice to use a typedef here seems to be
controversial. We should not be arbitrarily using two different
identifiers for the same thing across the codebase, so since there are
no use cases for serializing enum cb_err at the moment (which would be
the primary reason to typedef a fixed-width integer instead), remove
cb_err_t again for now.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Iaec36210d129db26d51f0a105d3de070c03b686b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62600
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This patch aims to make timestamps more consistent in naming,
to follow one pattern. Until now there were many naming patterns:
- TS_START_*/TS_END_*
- TS_BEFORE_*/TS_AFTER_*
- TS_*_START/TS_*_END
This change also aims to indicate, that these timestamps can be used
to create time-ranges, e.g. from TS_BOOTBLOCK_START to TS_BOOTBLOCK_END.
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: I533e32392224d9b67c37e6a67987b09bf1cf51c6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62019
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Now that the console system itself will clearly differentiate loglevels,
it is no longer necessary to explicitly add "ERROR: " in front of every
BIOS_ERR message to help it stand out more (and allow automated tooling
to grep for it). Removing all these extra .rodata characters should save
us a nice little amount of binary size.
This patch was created by running
find src/ -type f -exec perl -0777 -pi -e 's/printk\(\s*BIOS_ERR,\s*"ERROR: /printk\(BIOS_ERR, "/gi' '{}' ';'
and doing some cursory review/cleanup on the result. Then doing the same
thing for BIOS_WARN with
's/printk\(\s*BIOS_WARNING,\s*"WARN(ING)?: /printk\(BIOS_WARNING, "/gi'
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I3d0573acb23d2df53db6813cb1a5fc31b5357db8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61309
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Lance Zhao
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
In order to provide the same loglevel prefixes and highlighting that
were recently introduced for "interactive" consoles (e.g. UART) to
"stored" consoles (e.g. CBMEM) but minimize the amont of extra storage
space wasted on this info, this patch will write a 1-byte control
character marker indicating the loglevel to the start of every line
logged in those consoles. The `cbmem` utility will then interpret those
markers and translate them back into loglevel prefixes and escape
sequences as needed.
Since coreboot and userspace log readers aren't always in sync,
occasionally an older reader may come across these markers and not know
how to interpret them... but that should usually be fine, as the range
chosen contains non-printable ASCII characters that normally have no
effect on the terminal. At worst the outdated reader would display one
garbled character at the start of every line which isn't that bad.
(Older versions of the `cbmem` utility will translate non-printable
characters into `?` question marks.)
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I86073f48aaf1e0a58e97676fb80e2475ec418ffc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61308
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
This patch adds ANSI escape sequences to highlight a log line based on
its loglevel to the output of "interactive" consoles that are meant to
be displayed on a terminal (e.g. UART). This should help make errors and
warnings stand out better among the usual spew of debug messages. For
users whose terminal or use case doesn't support these sequences for
some reason (or who simply don't like them), they can be disabled with a
Kconfig.
While ANSI escape sequences can be used to add color, minicom (the
presumably most common terminal emulator for UART endpoints?) doesn't
support color output unless explicitly enabled (via -c command line
flag), and other terminal emulators may have similar restrictions, so in
an effort to make this as widely useful by default as possible I have
chosen not to use color codes and implement this highlighting via
bolding, underlining and inverting alone (which seem to go through in
all cases). If desired, support for separate color highlighting could be
added via Kconfig later.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I868f4026918bc0e967c32e14bcf3ac05816415e8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61307
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
In an attempt to make loglevels more visible (and therefore useful,
hopefully), this patch adds a prefix indicating the log level to every
line sent to an "interactive" console (such as a UART). If the code
contains a `printk(BIOS_DEBUG, "This is a debug message!\n"), it will
now show up as
[DEBUG] This is a debug message!
on the UART output.
"Stored" consoles (such as in CBMEM) will get a similar but more
space-efficient feature in a later CL.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Ic83413475400821f8097ef1819a293ee8926bb0b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61306
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
macOS has never defined the usual endian(3)/byteorder(9) byte-swapping
functions. This change implements these byte-swapping functions using
the OSSwap functions, which provide identical functionality. This was
tested on macOS 10.15.7.
Change-Id: I44d59869a4420030f3ce26118175304c680d57a1
Signed-off-by: Alex James <theracermaster@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60219
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Libpayload requires cbmem_id.h file to support extracting values from
CBMEM IMD entries of coreboot tables. Libpayload use BSD-3-Clause
license, and all of its files used to compile a static library have to
use it too.
Change-Id: I97c080e34ebdbcdf14fe3a3c9515b1dea8ede179
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59696
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <patrick@coreboot.org>
Add events for Chrome OS diagnostics in eventlog tool:
* ELOG_TYPE_CROS_DIAGNOSTICS(0xb6): diagnostics-related events
* ELOG_CROS_LAUNCH_DIAGNOSTICS(0x01): sub-type for diagnostics boot
These events are not added anywhere currently. They will be added in
another separate commit.
Signed-off-by: Hsuan Ting Chen <roccochen@chromium.org>
Change-Id: I1b67fdb46f64db33f581cfb5635103c9f5bbb302
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58795
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
AMD platforms pass in the base address to cbfs tool:
fspm.bin-options: -b $(CONFIG_FSP_M_ADDR)
There is no technical reason not to allow FSP-M to be relocated when
!XIP. By allowing this, we no longer need to pass in the base address
into cbfstool when adding fspm.bin. This enables passing in the
`--alignment` argument to cbfs tool instead. cbfstool currently has a
check that prevents both `-b` and `-a` from being passed in.
BUG=b:179699789
TEST=Boot guybrush to OS
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I797fb319333c53ad0bbf7340924f7d07dfc7de30
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58984
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
elog init requires doing a lot of SPI transactions. This change makes it
clear how long we spend initializing elog.
BUG=b:179699789
TEST=Boot guybrush and see elog init timestamps
114:started elog init 3,029,116 (88)
115:finished elog init 3,071,281 (42,165)
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ia92372dd76535e06eb3b8a08b53e80ddb38b7a8f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58957
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
AMD platforms require the destination to be 64 byte aligned in order to
use the SPI DMA controller. This is enforced by the destination address
register because the first 6 bits are marked as reserved.
This change adds an option to the mem_pool so the alignment can be
configured.
BUG=b:179699789
TEST=Boot guybrush to OS
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I8d77ffe4411f86c54450305320c9f52ab41a3075
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56580
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Move the locally declared typec_orientation enum from chip.h to
coreboot_tables.h.
Change enum typec_orientation name to type_c_orientation for consistency
with contents of coreboot_tables.h.
Rename TYPEC_ORIENTATION_FOLLOW_CC to TYPEC_ORIENTATION_NONE.
BUG=b:149830546
TEST="emerge-volteer coreboot" and make sure it compiles successfully.
Change-Id: I24c9177be72b0c9831791aa7d1f7b1236309c9cd
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58084
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This change adds type-c port information for USB Type-C ports to the
coreboot table. This allows depthcharge to know the usb2 and usb3
port number assignments for each available port, as well as the SBU
and data line orientation for the board.
BUG=b:149830546
TEST='emerge-volteer coreboot chromeos-bootimage' and verify it builds
successfully. Cherry-pick CL to enable this feature for volteer,
flash and boot volteer2 to kernel, log in and check cbmem for type-c
info exported to the payload:
localhost ~ # cbmem -c | grep type-c
added type-c port0 info to cbmem: usb2:9 usb3:1 sbu:0 data:0
added type-c port1 info to cbmem: usb2:4 usb3:2 sbu:1 data:0
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Change-Id: Ice732be2fa634dbf31ec620552b383c4a5b41451
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57069
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This CL uses a 16-bit value (instead of an 8-bit value) for the year.
This is needed because the function internally does a "year % 100", so
the year should not be truncated to 8-bit before applying the modulo.
This fixes a regression introduced in commit e929a75.
BUG=b:200538760
TEST=deployed coreboot. Manually verified that year is correct using
"elogtool list"
TEST=test_that -b $BOARD $DUT firmware_EventLog
Change-Id: I17578ff99af5b31b216ac53c22e53b1b70df5084
Signed-off-by: Ricardo Quesada <ricardoq@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57816
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This patch fixes a few minor CBFS parsing edge cases that could lead to
unintended behavior: the CBFS attribute parser could have run into an
infinite loop if an attribute's length was (accidentally or maliciously)
invalid. A length of 0 would have caused it to read the same attribute
over and over again without making forward progress, while a very large
length could have caused an overflow that makes it go backwards to find
the next attribute. Also, the filename was not guaranteed to be
null-terminated which could have resulted in out-of-bounds reads on a
few error messages.
Finally, clarify the validity guarantees for CBFS header fields offered
by cbfs_walk() in the comment explaining cbfs_mdata.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Ie569786e5bec355b522f6580f53bdd8b16a4d726
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57569
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jakub Czapiga <jacz@semihalf.com>
