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There have been a few issues with the new CBFS mcache code in stages
after romstage, where the mcache resides in CBMEM. In a few special
cases the stage may be doing a CBFS lookup before calling
cbmem_initialize(). To avoid breaking those cases, this patch makes the
CBFS code fall back to a lookup from flash if CBMEM hasn't been
reinitialized yet in those stages.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Icf6d1a1288cb243d0c4c893cc58251687e2873b0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48429
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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The new CBFS stack will log messages for found files but leaves error
messages up to the caller. This patch adds appropriate generic error
messages to cbfs_lookup(), matching the behavior of the old CBFS stack
for not found files.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I8cf44026accc03c466105d06683027caf1693ff0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48278
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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This patch adds the first stage of the new CONFIG_CBFS_VERIFICATION
feature. It's not useful to end-users in this stage so it cannot be
selected in menuconfig (and should not be used other than for
development) yet. With this patch coreboot can verify the metadata hash
of the RO CBFS when it starts booting, but it does not verify individual
files yet. Likewise, verifying RW CBFSes with vboot is not yet
supported.
Verification is bootstrapped from a "metadata hash anchor" structure
that is embedded in the bootblock code and marked by a unique magic
number. This anchor contains both the CBFS metadata hash and a separate
hash for the FMAP which is required to find the primary CBFS. Both are
verified on first use in the bootblock (and halt the system on failure).
The CONFIG_TOCTOU_SAFETY option is also added for illustrative purposes
to show some paths that need to be different when full protection
against TOCTOU (time-of-check vs. time-of-use) attacks is desired. For
normal verification it is sufficient to check the FMAP and the CBFS
metadata hash only once in the bootblock -- for TOCTOU verification we
do the same, but we need to be extra careful that we do not re-read the
FMAP or any CBFS metadata in later stages. This is mostly achieved by
depending on the CBFS metadata cache and FMAP cache features, but we
allow for one edge case in case the RW CBFS metadata cache overflows
(which may happen during an RW update and could otherwise no longer be
fixed because mcache size is defined by RO code). This code is added to
demonstrate design intent but won't really matter until RW CBFS
verification can be supported.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I8930434de55eb938b042fdada9aa90218c0b5a34
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41120
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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This patch introduces two new CBFS API functions which are equivalent to
cbfs_map() and cbfs_load(), respectively, with the difference that they
always operate on the read-only CBFS region ("COREBOOT" FMAP section).
Use it to replace some of the simple cases that needed to use
cbfs_locate_file_in_region().
Change-Id: I9c55b022b6502a333a9805ab0e4891dd7b97ef7f
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39306
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch adapts cbfs_load() and cbfs_map() to use the new CBFS API
directly, rather than through cbfs_boot_locate(). For cbfs_load() this
means that attribute metadata does not need to be read twice.
Change-Id: I754cc34b1c1471129e15475aa0f1891e02439a02
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39305
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This patch renames cbfs_boot_map_with_leak() and cbfs_boot_load_file()
to cbfs_map() and cbfs_load() respectively. This is supposed to be the
start of a new, better organized CBFS API where the most common
operations have the most simple and straight-forward names. Less
commonly used variants of these operations (e.g. cbfs_ro_load() or
cbfs_region_load()) can be introduced later. It seems unnecessary to
keep carrying around "boot" in the names of most CBFS APIs if the vast
majority of accesses go to the boot CBFS (instead, more unusual
operations should have longer names that describe how they diverge from
the common ones).
cbfs_map() is paired with a new cbfs_unmap() to allow callers to cleanly
reap mappings when desired. A few new cbfs_unmap() calls are added to
generic code where it makes sense, but it seems unnecessary to introduce
this everywhere in platform or architecture specific code where the boot
medium is known to be memory-mapped anyway. In fact, even for
non-memory-mapped platforms, sometimes leaking a mapping to the CBFS
cache is a much cleaner solution than jumping through hoops to provide
some other storage for some long-lived file object, and it shouldn't be
outright forbidden when it makes sense.
Additionally, remove the type arguments from these function signatures.
The goal is to eventually remove type arguments for lookup from the
whole CBFS API. Filenames already uniquely identify CBFS files. The type
field is just informational, and there should be APIs to allow callers
to check it when desired, but it's not clear what we gain from forcing
this as a parameter into every single CBFS access when the vast majority
of the time it provides no additional value and is just clutter.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Ib24325400815a9c3d25f66c61829a24a239bb88e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39304
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-by: Mariusz Szafrański <mariuszx.szafranski@intel.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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cbfs_boot_locate() is supposed to be deprecated eventually, after slowly
migrating all APIs to bypass it. That means common features (like
RO-fallback or measurement) need to be moved to the new
cbfs_boot_lookup().
Also export the function externally. Since it is a low-level API and
most code should use the higher-level loading or mapping functions
instead, put it into a new <cbfs_private.h> to raise the mental barrier
for using this API (this will make more sense once cbfs_boot_locate() is
removed from <cbfs.h>).
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I4bc9b7cbc42a4211d806a3e3389abab7f589a25a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39327
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This patch adds a new CBFS "mcache" (metadata cache) -- a memory buffer
that stores the headers of all CBFS files. Similar to the existing FMAP
cache, this cache should reduce the amount of SPI accesses we need to do
every boot: rather than having to re-read all CBFS headers from SPI
flash every time we're looking for a file, we can just walk the same
list in this in-memory copy and finally use it to directly access the
flash at the right position for the file data.
This patch adds the code to support the cache but doesn't enable it on
any platform. The next one will turn it on by default.
Change-Id: I5b1084bfdad1c6ab0ee1b143ed8dd796827f4c65
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38423
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This patch hooks coreboot up to the new commonlib/bsd CBFS
implementation. This is intended as the "minimum viable patch" that
makes the new implementation useable with the smallest amount of changes
-- that is why some of this may look a bit roundabout (returning the
whole metadata for a file but then just using that to fill out the rdevs
of the existing struct cbfsf). Future changes will migrate the higher
level CBFS APIs one-by-one to use the new implementation directly
(rather than translated into the results of the old one), at which point
this will become more efficient.
Change-Id: I4d112d1239475920de2d872dac179c245275038d
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38422
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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cbfstool emits cbfs_stage objects in little endian encoding.
However, big endian targets then read the wrong values from
these objects. To maintain backwards compatibility with existing
cbfs objects add in the little endian deserialization.
Change-Id: Ia113f7ddfa93f0ba5a76e0397f06f9b84c833727
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46227
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Marty E. Plummer <hanetzer@startmail.com>
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Allow the ability for chipset or mainboard to choose to
compress FSP-M in cbfs using LZMA or LZ4 routines. However, only
non-XIP platforms will support FSP-M compression. Since the main
cbfs decompression paths are utilized add the appropriate checks
for including compression algorithms under the FSP-M compression
options.
On picasso FSP-M (debug builds) the following savings were measured:
no-compression:
fspm.bin 720896 none
FSP_COMPRESS_FSP_M_LZ4:
fspm.bin 138379 LZ4 (720896 decompressed) -80%
FSP_COMPRESS_FSP_M_LZMA:
fspm.bin 98921 LZMA (720896 decompressed) -86%
BUG=b:155322763,b:150746858,b:152909132
Change-Id: I5c88510c134b56a36ff1cd97a64b51ab2fea0ab0
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41450
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Allow the ability for chipset or mainboard to choose to
compress FSP-S in cbfs using LZMA or LZ4 routines. To accomplish
this fsp_load_component() is added as an assist for performing
the necessary logic and allow the caller to provide the destination
selection. Since the main cbfs decompression paths are utilized add
the appropriate checks for including compression algorithms under
the FSP-S compression options.
On picasso FSP-S (debug builds) the following savings were measured:
no-compression:
fsps.bin 327680 none
FSP_COMPRESS_FSP_S_LZ4:
fsps.bin 98339 LZ4 (327680 decompressed) -70%
FSP_COMPRESS_FSP_S_LZMA:
fsps.bin 71275 LZMA (327680 decompressed) -78%
BUG=b:155322763,b:150746858,b:152909132
Change-Id: I8aa5d8c1cbaf4d08f38a918a9031a2570bc5247e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41449
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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The LZ4 compressed stages assume in-place decompression. The constraints
are validated in cbfstool for _stages_ such that they can be decompressed
in place. However, that is only true for stages. As such, add a wrapper,
cbfs_stage_load_and_decompress(), that handles the LZ4 stage loading case.
BUG=b:155322763,b:150746858,b:152909132
Change-Id: I9525a266250aa6c775283b598c09d4f40692db55
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41755
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Provide helper functions to determine if a compression
algorithm is supported in a given stage. Future patches can
use those functions to amend which algorithms to include in
the final link.
BUG=b:155322763,b:150746858,b:152909132
Change-Id: I898c939cec73d1f300ea38b165f379038877f05e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41754
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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Stefan thinks they don't add value.
Command used:
sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool)
The exceptions are for:
- crossgcc (patch file)
- gcov (imported from gcc)
- elf.h (imported from GNU's libc)
- nvramtool (more complicated header)
The removed lines are:
- fmt.Fprintln(f, "/* This file is part of the coreboot project. */")
-# This file is part of a set of unofficial pre-commit hooks available
-/* This file is part of coreboot */
-# This file is part of msrtool.
-/* This file is part of msrtool. */
- * This file is part of ncurses, designed to be appended after curses.h.in
-/* This file is part of pgtblgen. */
- * This file is part of the coreboot project.
- /* This file is part of the coreboot project. */
-# This file is part of the coreboot project.
-# This file is part of the coreboot project.
-## This file is part of the coreboot project.
--- This file is part of the coreboot project.
-/* This file is part of the coreboot project */
-/* This file is part of the coreboot project. */
-;## This file is part of the coreboot project.
-# This file is part of the coreboot project. It originated in the
- * This file is part of the coreinfo project.
-## This file is part of the coreinfo project.
- * This file is part of the depthcharge project.
-/* This file is part of the depthcharge project. */
-/* This file is part of the ectool project. */
- * This file is part of the GNU C Library.
- * This file is part of the libpayload project.
-## This file is part of the libpayload project.
-/* This file is part of the Linux kernel. */
-## This file is part of the superiotool project.
-/* This file is part of the superiotool project */
-/* This file is part of uio_usbdebug */
Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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When CONFIG_SEPARATE_VERSTAGE=n, all verstage code gets linked into the
appropriate calling stage (bootblock or romstage). This means that
ENV_VERSTAGE is actually 0, and instead ENV_BOOTBLOCK or ENV_ROMSTAGE
are 1. This keeps tripping up people who are just trying to write a
simple "are we in verstage (i.e. wherever the vboot init logic runs)"
check, e.g. for TPM init functions which may run in "verstage" or
ramstage depending on whether vboot is enabled. Those checks will not
work as intended for CONFIG_SEPARATE_VERSTAGE=n.
This patch renames ENV_VERSTAGE to ENV_SEPARATE_VERSTAGE to try to
clarify that this macro can really only be used to check whether code is
running in a *separate* verstage, and clue people in that they may need
to cover the linked-in verstage case as well.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I2ff3a3c3513b3db44b3cff3d93398330cd3632ea
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40582
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Done with sed and God Lines. Only done for C-like code for now.
Change-Id: Id3a0b63272ebda3dad13803700bcff36d36f4815
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40054
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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mrc.bin, on platforms where it is present, is code executed on CPU, so
it should be considered a part of CRTM.
cbfs_locate_file_in_region() is hooked to measurement here too, since
mrc.bin is loaded with it, and CBFS_TYPE_MRC (the type of mrc.bin) is
measured to TPM_CRTM_PCR rather than TPM_RUNTIME_DATA_PCR.
TODO: I have heard that SMM is too resource-limited to link with vboot
library, so currently tspi_measure_cbfs_hook() is masked in SMM.
Please correct me if I am wrong.
Change-Id: Ib4c3cf47b919864056baf725001ca8a4aaafa110
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38858
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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Currently, those who want to use measured boot implemented within
vboot should enable verified boot first, along with sections such
as GBB and RW slots defined with manually written fmd files, even
if they do not actually want to verify anything.
As discussed in CB:34977, measured boot should be decoupled from
verified boot and make them two fully independent options. Crypto
routines necessary for measurement could be reused, and TPM and CRTM
init should be done somewhere other than vboot_logic_executed() if
verified boot is not enabled.
In this revision, only TCPA log is initialized during bootblock.
Before TPM gets set up, digests are not measured into tpm immediately,
but cached in TCPA log, and measured into determined PCRs right after
TPM is up.
This change allows those who do not want to use the verified boot
scheme implemented by vboot as well as its requirement of a more
complex partition scheme designed for chromeos to make use of the
measured boot functionality implemented within vboot library to
measure the boot process.
TODO: Measure MRC Cache somewhere, as MRC Cache has never resided in
CBFS any more, so it cannot be covered by tspi_measure_cbfs_hook().
Change-Id: I1fb376b4a8b98baffaee4d574937797bba1f8aee
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35077
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
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AMD's Family 17h SOCs have the same vendor and device IDs for
their graphics blocks, but need different video BIOSes. The
only difference is the revision number.
Add a Kconfig option that allows us to add the revision number
of the graphics device to the PCI option rom saved in CBFS.
Because searching CBFS takes a non-trivial amount of time,
only enable the option if it's needed. If it's not used, or
if nothing matches, the check will fall through and search for
an option rom with no version.
BUG=b:145817712
TEST=With surrounding patches, loads dali vbios
Change-Id: Icb610a2abe7fcd0f4dc3716382b9853551240a7a
Signed-off-by: Martin Roth <martinroth@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/2013181
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39792
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
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They're listed in AUTHORS and often incorrect anyway, for example:
- What's a "Copyright $year-present"?
- Which incarnation of Google (Inc, LLC, ...) is the current
copyright holder?
- People sometimes have their editor auto-add themselves to files even
though they only deleted stuff
- Or they let the editor automatically update the copyright year,
because why not?
- Who is the copyright holder "The coreboot project Authors"?
- Or "Generated Code"?
Sidestep all these issues by simply not putting these notices in
individual files, let's list all copyright holders in AUTHORS instead
and use the git history to deal with the rest.
Change-Id: I89b10076e0f4a4b3acd59160fb7abe349b228321
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39611
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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cbfs_boot_load_stage_by_name() and cbfs_prog_stage_section() are no
longer used. Remove them to make refactoring the rest of the CBFS API
easier.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Ie44a9507c4a03499b06cdf82d9bf9c02a8292d5e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39334
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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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>
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When vboot was first integrated into CBFS it was still part of Google
vendorcode. So to not directly tie custom vendorcode into the core CBFS
library, the concept of cbfs_locator was introduced to decouple core
code from an arbitrary amount of platform-specific implementations that
want to decide where the CBFS can be found.
Nowadays vboot is a core coreboot feature itself, and the locator
concept isn't used by anything else anymore. This patch simplifies the
code by removing it and just calling vboot from the CBFS library
directly. That should make it easier to more closely integrate vboot
into CBFS in the future.
Change-Id: I7b9112adc7b53aa218c58b8cb5c85982dcc1dbc0
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38419
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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Drop struct cbfs_props and replace with struct region_device object.
The goal of the cbfs locator APIs are to determine the correct region
device to find the cbfs files. Therefore, start directly using struct
region_device in the cbfs location paths. Update the users of the API
and leverage the default boot region device implementation for
apollolake.
Change-Id: I0158a095cc64c9900d8738f8ffd45ae4040575ea
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36939
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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The prepare() callback is no longer utilized in the code. Remove
the callback and support for it.
Change-Id: Ic438e5a80850a3df619dbbfdecb522a9dc2c1949
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36690
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
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The CBFS master header is a legacy structure that just conveys the same
information we already have from the FMAP these days. We're still
including it to support older CBFS implementations in some payloads, but
there's no need for coreboot itself to follow this indirection anymore.
This patch simplifies the default CBFS locator to just return the CBFS
offset and size from the FMAP directly.
Change-Id: I6b00dd7f276364d62fa1f637efbaee0e80607c49
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36688
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch adds an optional pre-RAM cache for the FMAP which most
platforms should be able to use, complementing the recently added
post-RAM FMAP cache in CBMEM. vboot systems currently read the FMAP
about half a dozen times from flash in verstage, which will all be
coalesced into a single read with this patch. It will also help
future vboot improvements since when FMAP reads become "free" vboot
doesn't need to keep track of so much information separately.
In order to make sure we have a single, well-defined point where the new
cache is first initialized, eliminate the build-time hardcoding of the
CBFS section offsets, so that all CBFS accesses explicitly read the
FMAP.
Add FMAP_CACHEs to all platforms that can afford it (other than the
RISC-V things where I have no idea how they work), trying to take the
space from things that look like they were oversized anyway (pre-RAM
consoles and CBFS caches).
Change-Id: I2820436776ef620bdc4481b5cd4b6957764248ea
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36657
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Joel Kitching <kitching@google.com>
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This patch makes the CBFS default locator .locate() callback externally
available so that code which overrides cbfs_master_header_locator can
reuse or wrap it and doesn't have to copy&paste the whole thing. Use it
for the Eltan vendorcode implementation which previously did this.
Change-Id: I54dad5c8ea64ea0fc472217e275daa815736991e
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36797
Reviewed-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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With this change cbfs_boot_locate will check the RO (COREBOOT) region if
a file can not be found in the active RW region. By doing so it is not
required to duplicate static files that are not intended to be updated
to the RW regions.
The coreboot image can still be updated by adding the file to the RW
region.
This change is intended to support VBOOT on systems with a small flash
device.
BUG=N/A
TEST=tested on facebook fbg1701
Change-Id: I81ceaf927280cef9a3f09621c796c451e9115211
Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36545
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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|
le32_to_cpu spits out uint32_t on BE targets, cast it.
Change-Id: Idc99b0c133faa2aa15d06f998e7371d332ffa490
Signed-off-by: Marty E. Plummer <hanetzer@startmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36346
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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This should improve boot times as it skips unnecessary read and
writes.
Change-Id: I8cf36613903783e741b2e3bfeeee5bc29ab26d5b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36323
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
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Change-Id: Iddba5b03fc554a6edc4b26458d834e47958a6b08
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32214
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: David Guckian
|
|
This patch is a raw application of
find src/ -type f | xargs sed -i -e 's/IS_ENABLED\s*(CONFIG_/CONFIG(/g'
Change-Id: I6262d6d5c23cabe23c242b4f38d446b74fe16b88
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31774
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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* Introduce a measured boot mode into vboot.
* Add hook for stage measurements in prog_loader and cbfs.
* Implement and hook-up CRTM in vboot and check for suspend.
Change-Id: I339a2f1051e44f36aba9f99828f130592a09355e
Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/29547
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
|
|
Change-Id: I5a3cb41b3a7ff2aa527cc2b40c9d7438474c2f93
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/30084
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Its spreading copies got out of sync. And as it is not a standard header
but used in commonlib code, it belongs into commonlib. While we are at
it, always include it via GCC's `-include` switch.
Some Windows and BSD quirk handling went into the util copies. We always
guard from redefinitions now to prevent further issues.
Change-Id: I850414e6db1d799dce71ff2dc044e6a000ad2552
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/28927
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Fix a linking problem with VBOOT and USE_OPTION_TABLE enabled.
Make use of cbfs_locate_file_in_region() and always search the
cmos_layout.bin in the 'COREBOOT' region.
With this change applied there's no need to include the vboot_locator
in SMM any more, we can't break NVRAM with different CMOS layouts,
and we keep VBOOT and non VBOOT behaviour the same.
Only include cmos_layout.bin and cmos.default in RO region.
Add notes explaining the decisions.
Tested on Intel Sandybridge, builds and boots with vboot enabled.
Change-Id: I10ae94d7936581bbb5ea49384122062bd4934ea5
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/26863
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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If we have POSTCAR_STAGE there is no need for
romstage to include LZMA decompression code.
Reduces romstage by about 4 kiB on x86.
Change-Id: I4c475986b2a94e5cd540c3eead433ed6c0a815ed
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26759
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
|
|
Change-Id: I39c12ab3f28b5448fa4f46958cf23f2623a92378
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/25928
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
|
|
Instead of writing out '__attribute__((weak))' use a shorter form.
Change-Id: If418a1d55052780077febd2d8f2089021f414b91
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/25767
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
|
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Generalize cbfs_boot_load_struct() by passing in CBFS type
Change-Id: I6e5f845cb4ce5b00f01a39619919f85e39028f19
Signed-off-by: T Michael Turney <mturney@codeaurora.org>
Reviewed-on: https://review.coreboot.org/25648
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
|
|
Some of these can be changed from #if to if(), but that will happen
in a follow-on commmit.
Change-Id: Idcea3f8b1a4246cb6b29999a84a191a3133e5c78
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20341
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
Fix the following errors detected by checkpatch.pl:
ERROR: "foo* bar" should be "foo *bar"
ERROR: "(foo*)" should be "(foo *)"
ERROR: "foo * const * bar" should be "foo * const *bar"
TEST=Build and run on Galileo Gen2
Change-Id: I0d20ca360d8829f7d7670bacf0da4a0300bfb0c1
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18696
Tested-by: build bot (Jenkins)
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
|
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This patch adds an API to find file by name from
any specific region of fmap.
Change-Id: Iabe785a6434937be6a57c7009882a0d68f6c8ad4
Signed-off-by: Pratik Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/17664
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
Add implementation to use actual requirements of ramstage size
for S3 resume backup in CBMEM. The backup covers complete pages of 4 KiB.
Only the required amount of low memory is backed up when ACPI_TINY_LOWMEM_BACKUP
is selected for the platform. Enable this option for AGESA and binaryPI, other
platforms (without RELOCATABLE_RAMSTAGE) currently keep their romstage ramstack
in low memory for s3 resume path.
Change-Id: Ide7ce013f3727c2928cdb00fbcc7e7e84e859ff1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15255
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
|
|
This patch adds functionality to compile a C data structure into a raw
binary file, add it to CBFS and allow coreboot to load it at runtime.
This is useful in all cases where we need to be able to have several
larger data sets available in an image, but will only require a small
subset of them at boot (a classic example would be DRAM parameters) or
only require it in certain boot modes. This allows us to load less data
from flash and increase boot speed compared to solutions that compile
all data sets into a stage.
Each structure has to be defined in a separate .c file which contains no
functions and only a single global variable. The data type must be
serialization safe (composed of only fixed-width types, paying attention
to padding). It must be added to CBFS in a Makefile with the 'struct'
file processor.
Change-Id: Iab65c0b6ebea235089f741eaa8098743e54d6ccc
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16272
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
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Make the indication of the boot device being memory mapped
separate from SPI. However, retain the same defaults that
previously existed.
BUG=chrome-os-partner:56151
Change-Id: I06f138078c47a1e4b4b3edbdbf662f171e11c9d4
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16228
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Martin Roth <martinroth@google.com>
|
|
This reverts commit a83bbf58541cf41ea7a97dedbc8c02dffa59e86d.
This was submitted out of order.
Change-Id: Ic5a28faf94c1f1901a72e46343722eb4224c5086
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16226
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Make the indication of the boot device being memory mapped
separate from SPI. However, retain the same defaults that
previously existed.
BUG=chrome-os-partner:56151
Change-Id: Ibdd7c8754f9bf560a878136b1f55238e2c2549d3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16193
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
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VBOOT_VERIFY_FIRMWARE should be independent of CHROMEOS. This allows use
of verified boot library without having to stick to CHROMEOS.
BUG=chrome-os-partner:55639
Change-Id: Ia2c328712caedd230ab295b8a613e3c1ed1532d9
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/15867
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
|
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The build fails during postcar when ULZMA compression is not selected.
Fix cbfs.c to support LZ compression for ramstage as well.
The build error is:
build/postcar/lib/cbfs.o: In function `cbfs_load_and_decompress':
/home/lee/coreboot/public/src/lib/cbfs.c:116: undefined reference to
`ulzman'
make: *** [build/cbfs/fallback/postcar.debug] Error 1
TEST=Build and run on Galileo Gen2
Change-Id: I7fa8ff33c0d32e0c5ff5de7918e13e6efb1df38e
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/15841
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
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Modern platforms like Apollolake do not use XIP for early stages. In
such cases, cbfs_prog_stage_load should check for NO_XIP_EARLY_STAGES
instead of relying on ARCH_X86 to decide if a stage is XIP.
Change-Id: I1729ce82b5f678ce8c37256090fcf353cc22b1ec
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/15045
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
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It used to use CONFIG_CBFS_SIZE. The plan is that CBFS_SIZE only informs
default*.fmd generation, while everything else derives its information
from there.
Also document the existing assumption that boot media should access the
COREBOOT region (and not any other potentially existing fmap region
containing a CBFS).
Change-Id: I08254e4510f71edf99c2c8b56ac8f92008727c4a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/14572
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
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In order to not muddle arch vs chipset implementations provide
a generic prog_segment_loaded() which calls platform_segment_loaded()
and arch_segment_loaded() in that order. This allows the arch variants
to live in src/arch while the chipset/platform code can implement
their own.
Change-Id: I17b6497219ec904d92bd286f18c9ec96b2b7af25
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14214
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
|
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This patch ports the LZ4 decompression code that debuted in libpayload
last year to coreboot for use in CBFS stages (upgrading the base
algorithm to LZ4's dev branch to access the new in-place decompression
checks). This is especially useful for pre-RAM stages in constrained
SRAM-based systems, which previously could not be compressed due to
the size requirements of the LZMA scratchpad and bounce buffer. The
LZ4 algorithm offers a very lean decompressor function and in-place
decompression support to achieve roughly the same boot speed gains
(trading compression ratio for decompression time) with nearly no
memory overhead.
For now we only activate it for the stages that had previously not been
compressed at all on non-XIP (read: non-x86) boards. In the future we
may also consider replacing LZMA completely for certain boards, since
which algorithm wins out on boot speed depends on board-specific
parameters (architecture, processor speed, SPI transfer rate, etc.).
BRANCH=None
BUG=None
TEST=Built and booted Oak, Jerry, Nyan and Falco. Measured boot time on
Oak to be about ~20ms faster (cutting load times for affected stages
almost in half).
Change-Id: Iec256c0e6d585d1b69985461939884a54e3ab900
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/13638
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
To continue sharing more code between the tools and
coreboot proper provide cbfs parsing logic in commonlib.
A cbfs_for_each_file() function was added to allow
one to act on each file found within a cbfs. cbfs_locate()
was updated to use that logic.
BUG=chrome-os-partner:48412
BUG=chromium:445938
BRANCH=None
TEST=Utilized and booted on glados.
Change-Id: I1f23841583e78dc3686f106de9eafe1adbef8c9f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/12783
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
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>
|
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The Chrome OS verified boot path supported multiple CBFS
instances in the boot media as well as stand-alone assets
sitting in each vboot RW slot. Remove the support for the
stand-alone assets and always use CBFS accesses as the
way to retrieve data.
This is implemented by adding a cbfs_locator object which
is queried for locating the current CBFS. Additionally, it
is also signalled prior to when a program is about to be
loaded by coreboot for the subsequent stage/payload. This
provides the same opportunity as previous for vboot to
hook in and perform its logic.
BUG=chromium:445938
BRANCH=None
TEST=Built and ran on glados.
CQ-DEPEND=CL:307121,CL:31691,CL:31690
Change-Id: I6a3a15feb6edd355d6ec252c36b6f7885b383099
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/12689
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
|
|
The proper return value to signal an error from cbfs_prog_stage_load()
is -1, not 0.
Change-Id: Ie53b0359c7c036e3f809d1f941dab53f090b84ab
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/12633
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
|
|
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>
|
|
On x86 the early stages are currently execute-in-place which
means they live in the memory-mapped spi flash. However, when
loading romstage from verstage the romstage is
execute-in-place so it's unnecessary to write over a read-only
media -- not to mention writing to read-only memory is wrong
to begin with.
BUG=chrome-os-partner:44827
BRANCH=None
TEST=Built and booted glados. Noted reduction of 20ms when
loading romstage.
Change-Id: I7cd399302a3925a05fbce82600b4c50ea66a0fcb
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11823
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
Now that cbfs is adding more metadata in the cbfs file
header one needs to access that metadata. Therefore,
add struct cbfsf which tracks the metadata and data
of the file separately. Note that stage and payload
metadata specific to itself is still contained within
the 'data' portion of a cbfs file. Update the cbfs
API to use struct cbfsf. Additionally, remove struct
cbfsd as there's nothing else associated with a cbfs
region aside from offset and size which tracked
by a region_device (thanks, CBFS_ALIGNMENT!).
BUG=None
BRANCH=None
TEST=Built and booted through end of ramstage on qemu armv7.
Built and booted glados using Chrome OS.
Change-Id: I05486c6cf6cfcafa5c64b36324833b2374f763c2
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11679
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
Assume that it's 64 byte.
Change-Id: I168facd92f64c2cf99c26c350c60317807a4aed4
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10919
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
As there can be more than one source of firmware assets this
patch generalizes the notion of locating a particular asset.
struct asset is added along with some helper functions for
working on assets as a first class citizen.
Change-Id: I2ce575d1e5259aed4c34c3dcfd438abe9db1d7b9
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10264
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
|
|
A new CBFS API is introduced to allow making CBFS access
easier for providing multiple CBFS sources. That is achieved
by decoupling the cbfs source from a CBFS file. A CBFS
source is described by a descriptor. It contains the necessary
properties for walking a CBFS to locate a file. The CBFS
file is then decoupled from the CBFS descriptor in that it's
no longer needed to access the contents of the file.
All of this is accomplished using the regions infrastructure
by repsenting CBFS sources and files as region_devices. Because
region_devices can be chained together forming subregions this
allows one to decouple a CBFS source from a file. This also allows
one to provide CBFS files that came from other sources for
payload and/or stage loading.
The program loading takes advantage of those very properties
by allowing multiple sources for locating a program. Because of
this we can reduce the overhead of loading programs because
it's all done in the common code paths. Only locating the
program is per source.
Change-Id: I339b84fce95f03d1dbb63a0f54a26be5eb07f7c8
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9134
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
As per discussion with lawyers[tm], it's not a good idea to
shorten the license header too much - not for legal reasons
but because there are tools that look for them, and giving
them a standard pattern simplifies things.
However, we got confirmation that we don't have to update
every file ever added to coreboot whenever the FSF gets a
new lease, but can drop the address instead.
util/kconfig is excluded because that's imported code that
we may want to synchronize every now and then.
$ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *MA[, ]*02110-1301[, ]*USA:Foundation, Inc.:" {} +
$ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA:Foundation, Inc.:" {} +
$ find * -type f -exec sed -i "s:Foundation, Inc., 59 Temple Place[-, ]*Suite 330, Boston, MA *02111-1307[, ]*USA:Foundation, Inc.:" {} +
$ find * -type f -exec sed -i "s:Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.:Foundation, Inc.:" {} +
$ find * -type f
-a \! -name \*.patch \
-a \! -name \*_shipped \
-a \! -name LICENSE_GPL \
-a \! -name LGPL.txt \
-a \! -name COPYING \
-a \! -name DISCLAIMER \
-exec sed -i "/Foundation, Inc./ N;s:Foundation, Inc.* USA\.* *:Foundation, Inc. :;s:Foundation, Inc. $:Foundation, Inc.:" {} +
Change-Id: Icc968a5a5f3a5df8d32b940f9cdb35350654bef9
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/9233
Tested-by: build bot (Jenkins)
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
|
|
That function will be used by the vboot loader.
Change-Id: I204c6cd5eede3645750b50fe3ed30d77c22dbf43
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10101
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
|
Add the absolute offset value to the CBFS log, to make it easier to
understand which particular CBFS section the file is loaded from.
BRANCH=storm
BUG=none
TEST=rebooted a Whirlwind device, observed an empty line before the
ramstage section of the log and absolute offsets reported by
CBFS.
Change-Id: Ifcb79ab386629446b98625a5416dfa5850a105f6
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: ecc4d1df7c51a263230c45ecac5981d53bdd44b1
Original-Change-Id: I5cc727127374d6e55b8ff6f45b250ef97125a8ec
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/255120
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9827
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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If you try to boot a VBOOT2_VERIFY_FIRMWARE with less than 4K CBFS cache
right now, your system will try and fail to validate the FMAP signature
at (u8 *)0xFFFFFFFF and go into recovery mode. This patch avoids the
memcmp() to potentially invalid memory, and also adds an error message
to cbfs_simple_buffer_map() to make it explicit that we ran out of CBFS
cache space.
BUG=None
TEST=Booted on Veyron_Pinky with reduced CBFS cache, saw the message.
Original-Change-Id: Ic5773b4e0b36dc621513f58fc9bd29c17afbf1b7
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/222899
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit 0ed3c0c2b63be0d32e8162faf892e41cef1f1f23)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: I20ccac83bff4a377caca6327d0e21032efff44c1
Reviewed-on: http://review.coreboot.org/9373
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
|
|
The struct prog serves as way to consolidate program
loading. This abstraction can be used to perform more
complicated execution paths such as running a program
on a separate CPU after it has been loaded. Currently
t124 and t132 need to do that in the boot path. Follow
on patches will allow the platform to decide how to
execute a particular program.
Note: the vboot path is largely untouched because it's
already broken in the coreboot.org tree. After getting
all the necessary patches pushed then vboot will be
fixed.
Change-Id: Ic6e6fe28c5660fb41edee5fd8661eaf58222f883
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8839
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
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currently, if the cache size is, for example, 4096 byte, mapping 4096 byte data
fails due to the overly strict check. this change allows cbfs_simple_buffer_map
to use all the cache space to the last byte.
BUG=None
TEST=Booted Nyan Blaze.
BRANCH=None
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Change-Id: I0797b5010afd7316fdec605784e8f48e2d62c37f
Original-Reviewed-on: https://chromium-review.googlesource.com/218883
Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit b0b31da336fa2f87fe73f063782d6243f8262d10)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: I15e11e574cd14484fe83c9c3674bb5c2d14422f6
Reviewed-on: http://review.coreboot.org/9178
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Instead of having 2 different functions to call when a program
is loaded provide a single callback with flags parameter. The
previous callbacks for cache management routines did this:
for_each_program_segment:
arch_program_segment_loaded(start, size);
arch_program_loaded();
Now, use one callback instead:
for_each_program_segment:
arch_segment_loaded(start, size, SEG_FINAL?);
Change-Id: I3811cba92e3355d172f605e4444f053321b07a2a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8838
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The run_address() function is not used. Remove it.
Change-Id: I96de4cf0a529b08943ff8281cedead642eb415de
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9124
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
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Two weak functions were added so that architecture specific operations
on each segment of payload or stage can be performed.
Each architecture must define its own operations, otherwise the
behavior will default to do-nothing functions.
This patch has been updated by to fit more in line with
how program loading is currently being done. The API is the
same as the original, but all call sites to stages/payloads
have been updated. This is known to break any archs that use
rmodule loading that needs cache maintenance. That will be fixed
in a forthcoming patch. Also, the vboot paths are left as is
for easier upstreaming of the rest of the vboot patches.
Original-Change-Id: Ie29e7f9027dd430c8b4dde9848fa3413c5dbfbfa
Original-Signed-off-by: Ionela Voinescu <ionela.voinescu@imgtec.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/239881
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
(cherry picked from commit c82c21ce87a4c02bd9219548a4226a58e77beef0)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: Ifcee5cd9ac5dbca991556296eb5e170b47b77af7
Reviewed-on: http://review.coreboot.org/8837
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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I broke cbfs loading with commit 358901. As multiple
functions are being reused one needs to ensure there is
always a cbfs media object allocated on the stack and
initialized. Ya for no common writable globals.
TEST=Ran qemu-armv7. CBFS loading works again.
Change-Id: Ibd047af7dcd8575e6203651471079fc2042da282
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8973
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Duncan Laurie <dlaurie@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
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this change allows vboot_load_stage to load a decompressed stage directly to the
load address without using the cbfs cache.
BUG=None
TEST=Booted Nyan Blaze.
BRANCH=None
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Change-Id: I76530276ff9a87b44f98a33f2c34bd5b2de6888f
Original-Reviewed-on: https://chromium-review.googlesource.com/219028
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Original-Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
(cherry picked from commit 0ad6f7fee9df31e1b35d4df9a8c373516416a235)
Change-Id: I7abdbdda0cc549894dfb9d599a576bba0a4fadfc
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8883
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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BUG=None
BRANCH=none
TEST=Ran image in foundation model
Signed-off-by: Marcelo Povoa <marcelogp@chromium.org>
Original-Change-Id: I80a92673c163b3df312ce632eb52e5bb1e7ab1db
Original-Reviewed-on: https://chromium-review.googlesource.com/185273
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Marcelo Póvoa <marcelogp@chromium.org>
Original-Tested-by: Marcelo Póvoa <marcelogp@chromium.org>
(cherry picked from commit e2f19689acb973aedee6e4b324ed27b64f2d47de)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Icc3fc82779d18963f0fe8d5fb655f96027164a18
Reviewed-on: http://review.coreboot.org/7660
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
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Change-Id: Ieb7f383c84401aab87adc833deebf289cd0c9a0f
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/7426
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
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Change-Id: I5499a99cec82b464c5146cfc2008d683d079b23a
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/7068
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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A payload can be loaded either from a vboot region or from cbfs.
Provide a common place for choosing where the payload is loaded
from. Additionally, place the logic in the 'loaders' directory
similarly to the ramstage loader infrastructure.
Change-Id: I6b0034ea5ebd04a3d058151819ac77a126a6bfe2
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5296
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Not used anymore.
Change-Id: Icf3a4a7f932776981048b805478582ad2b784182
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/5132
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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There are 2 methods currently available in coreboot to load
ramstage from romstage: cbfs and vboot. The vboot path had
to be explicitly enabled and code needed to be added to
each chipset to support both. Additionally, many of the paths
were duplicated between the two. An additional complication
is the presence of having a relocatable ramstage which creates
another path with duplication.
To rectify this situation provide a common API through the
use of a callback to load the ramstage. The rest of the
existing logic to handle all the various cases is put in
a common place.
Change-Id: I5268ce70686cc0d121161a775c3a86ea38a4d8ae
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5087
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Haswell was the original chipset to store the cache
in another area besides CBMEM. However, it was specific
to the implementation. Instead, provide a generic way
to obtain the location of the ramstage cache. This option
is selected using the CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM
Kconfig option.
BUG=chrome-os-partner:23249
BRANCH=None
TEST=Built and booted with baytrail support. Also built for
falco successfully.
Change-Id: I70d0940f7a8f73640c92a75fd22588c2c234241b
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/172602
Reviewed-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/4876
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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There are 3 places rmodule stages are loaded in the
existing code: cbfs and 2 in vboot_wrapper. Much of the
code is the same except for a few different cbmem entry
ids. Instead provide a common implementation in the
rmodule library itself.
A structure named rmod_stage_load is introduced to manage
the inputs and outputs from the new API.
BUG=chrome-os-partner:22866
BRANCH=None
TEST=Built and booted successfully.
Change-Id: I146055005557e04164e95de4aae8a2bde8713131
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/174425
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/4897
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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Change-Id: I5b93e5321e470f19ad22ca2cfdb1ebf3b340b252
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4659
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Tested-by: build bot (Jenkins)
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Clean up superfluous line terminators.
Change-Id: If837b4f1b3e7702cbb09ba12f53ed788a8f31386
Signed-off-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-on: http://review.coreboot.org/4562
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
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The code is wrong (it's calling ntohl on an entry point that is actually
already le due to an old cbfs bug) and nothing calls it any more anyway.
Change-Id: Ief2c33faf99e3d2fc410524a5aae7bde378f088b
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-on: http://review.coreboot.org/4090
Tested-by: build bot (Jenkins)
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@google.com>
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If ramstage is not compressed, the CBFS module in romstage doesn't
need to support LZMA. Removing the LZMA module in this case can save
about 3000 bytes in romstage.
Change-Id: Id6f7869e32979080e2985c07029edcb39eee9106
Signed-off-by: Andrew Wu <arw@dmp.com.tw>
Reviewed-on: http://review.coreboot.org/3878
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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For reasons explained in a previous CL, it might be necessary to "load" a file
from CBFS in place. The loading code in CBFS was, however, zeroing the area of
memory the stage was about to be loaded into. When the CBFS data is located
elsewhere this works fine, but when it isn't you end up clobbering the data
you're trying to load. Also, there's no reason to zero memory we're about to
load something into or have just loaded something into. This change makes it
so that we only zero out the portion of the memory between what was
loaded/decompressed and the final size of the stage in memory.
Change-Id: If34df16bd74b2969583e11ef6a26eb4065842f57
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3579
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Instead of returning 0 on success and -1 on error, return the decompressed
size of the data on success and 0 on error. The decompressed size is useful
information to have that was being thrown away in that function.
Change-Id: If787201aa61456b1e47feaf3a0071c753fa299a3
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3578
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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There were some cbfs calls that did not get transitioned
to the new cbfs API. Fix the callsites to conform to the
actual cbfs, thus fixing the copilation errors.
Change-Id: Ia9fe2c4efa32de50982e21bd01457ac218808bd3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2880
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This patch implements support for vboot firmware selection. The vboot
support is comprised of the following pieces:
1. vboot_loader.c - this file contains the entry point,
vboot_verify_firmware(), for romstage to call in order to perform
vboot selection. The loader sets up all the data for the wrapper
to use.
2. vboot_wrapper.c - this file contains the implementation calling the vboot
API. It calls VbInit() and VbSelectFirmware() with the data supplied
by the loader.
The vboot wrapper is compiled and linked as an rmodule and placed in
cbfs as 'fallback/vboot'. It's loaded into memory and relocated just
like the way ramstage would be. After being loaded the loader calls into
wrapper. When the wrapper sees that a given piece of firmware has been
selected it parses firmware component information for a predetermined
number of components.
Vboot result information is passed to downstream users by way of the
vboot_handoff structure. This structure lives in cbmem and contains
the shared data, selected firmware, VbInitParams, and parsed firwmare
components.
During ramstage there are only 2 changes:
1. Copy the shared vboot data from vboot_handoff to the chromeos acpi
table.
2. If a firmware selection was made in romstage the boot loader
component is used for the payload.
Noteable Information:
- no vboot path for S3.
- assumes that all RW firmware contains a book keeping header for the
components that comprise the signed firmware area.
- As sanity check there is a limit to the number of firmware components
contained in a signed firmware area. That's so that an errant value
doesn't cause the size calculation to erroneously read memory it
shouldn't.
- RO normal path isn't supported. It's assumed that firmware will always
load the verified RW on all boots but recovery.
- If vboot requests memory to be cleared it is assumed that the boot
loader will take care of that by looking at the out flags in
VbInitParams.
Built and booted. Noted firmware select worked on an image with
RW firmware support. Also checked that recovery mode worked as well
by choosing the RO path.
Change-Id: I45de725c44ee5b766f866692a20881c42ee11fa8
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2854
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Dynamic cbmem is now a requirement for relocatable ramstage.
This patch replaces the reserve_* fields in the romstage_handoff
structure by using the dynamic cbmem library.
The haswell code is not moved over in this commit, but it should be
safe because there is a hard requirement for DYNAMIC_CBMEM when using
a reloctable ramstage.
Change-Id: I59ab4552c3ae8c2c3982df458cd81a4a9b712cc2
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2849
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Instead of hard coding the policy for how a relocated ramstage
image is saved add an interface. The interface consists of two
functions. cache_loaded_ramstage() and load_cached_ramstage()
are the functions to cache and load the relocated ramstage,
respectively. There are default implementations which cache and
load the relocated ramstage just below where the ramstage runs.
Change-Id: I4346e873d8543e7eee4c1cd484847d846f297bb0
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2805
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Accessing the flash part where the ramstage resides can be slow
when loading it. In order to save time in the S3 resume path a copy
of the relocated ramstage is saved just below the location the ramstage
was loaded. Then on S3 resume the cached version of the relocated
ramstage is copied back to the loaded address.
This is achieved by saving the ramstage entry point in the
romstage_handoff structure as reserving double the amount of memory
required for ramstage. This approach saves the engineering time to make
the ramstage reentrant.
The fast path in this change will only be taken when the chipset's
romstage code properly initializes the s3_resume field in the
romstage_handoff structure. If that is never set up properly then the
fast path will never be taken.
e820 entries from Linux:
BIOS-e820: [mem 0x000000007bf21000-0x000000007bfbafff] reserved
BIOS-e820: [mem 0x000000007bfbb000-0x000000007bffffff] type 16
The type 16 is the cbmem table and the reserved section contains the two
copies of the ramstage; one has been executed already and one is
the cached relocated program.
With this change the S3 resume path on the basking ridge CRB shows
to be ~200ms to hand off to the kernel:
13 entries total:
1:95,965
2:97,191 (1,225)
3:131,755 (34,564)
4:132,890 (1,135)
8:135,165 (2,274)
9:135,840 (675)
10:135,973 (132)
30:136,016 (43)
40:136,581 (564)
50:138,280 (1,699)
60:138,381 (100)
70:204,538 (66,157)
98:204,615 (77)
Change-Id: I9c7a6d173afc758eef560e09d2aef5f90a25187a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2800
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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The romstage_handoff structure can be utilized from different components
of the romstage -- some in the chipset code, some in coreboot's core
libarary. To ensure that all users handle initialization of a newly
added romstage_handoff structure properly, provide a common function to
handle structure initialization.
Change-Id: I3998c6bb228255f4fd93d27812cf749560b06e61
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2795
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This patch adds an option to build the ramstage as a reloctable binary.
It uses the rmodule library for the relocation. The main changes
consist of the following:
1. The ramstage is loaded just under the cmbem space.
2. Payloads cannot be loaded over where ramstage is loaded. If a payload
is attempted to load where the relocatable ramstage resides the load
is aborted.
3. The memory occupied by the ramstage is reserved from the OS's usage
using the romstage_handoff structure stored in cbmem. This region is
communicated to ramstage by an CBMEM_ID_ROMSTAGE_INFO entry in cbmem.
4. There is no need to reserve cbmem space for the OS controlled memory for
the resume path because the ramsage region has been reserved in #3.
5. Since no memory needs to be preserved in the wake path, the loading
and begin of execution of a elf payload is straight forward.
Change-Id: Ia66cf1be65c29fa25ca7bd9ea6c8f11d7eee05f5
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2792
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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The cbfs stage loading routine already zeros out the full
memory region that a stage will be loaded. Therefore, it is
unnecessary to to clear the bss again after once ramstage starts.
Change-Id: Icc7021329dbf59bef948a41606f56746f21b507f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2865
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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In certain situations boot speed can be increased by providing an
alternative implementation to cbfs_load_payload(). The
ALT_CBFS_LOAD_PAYLOAD option allows for the mainboard or chipset to
provide its own implementation.
Booted baskingridge board with alternative and regular
cbfs_load_payload().
Change-Id: I547ac9881a82bacbdb3bbdf38088dfcc22fd0c2c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2782
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
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