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Change-Id: I7dd7b0b7c5fdb63fe32915b88e69313e3440b64a
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80587
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The .inc suffix is confusing to various tools as it's not specific to
Makefiles. This means that editors don't recognize the files, and don't
open them with highlighting and any other specific editor functionality.
This issue is also seen in the release notes generation script where
Makefiles get renamed before running cloc.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I552d487978906f5ea74c3d0d85373fe5b2de3f38
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80068
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
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To help identify the licenses of the various files contained in the
coreboot source, we've added SPDX headers to the top of all of the
.c and .h files. This extends that practice to Makefiles.
Any file in the coreboot project without a specific license is bound
to the license of the overall coreboot project, GPL Version 2.
This patch adds the GPL V2 license identifier to the top of all
makefiles in the cpu directory that don't already have an SPDX
license line at the top.
Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I3033f2a9eebc75220f7666325857b3ddd60c8f75
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68979
Reviewed-by: Tim Crawford <tcrawford@system76.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
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This patch drops the unnecessary alignment of 64 bytes that was
introduced when implementing the split Intel microcode packing logic
into CBFS.
- The 16-byte alignment that is already used for Intel microcode is
sufficient.
- Removes unnecessary alignment check of 64 bytes against an AMD
platform specific config.
TEST=Able to build and boot google/rex without any functional
impact.
Change-Id: Icc44e9511e321592de7ab8d1346103d0a9951c9b
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76397
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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The current design of the `ucode-<variant>.bin` file combines all
possible microcode per cpuid into a unified blob. This model increases
the microcode loading time from RW CBFS due to higher CBFS verification
time (the bigger the CBFS binary the longer the verification takes).
This patch creates a provision to pack individual microcodes (per CPUID)
into the CBFS (RO and RWs). Implementation logic introduces
CPU_INTEL_MICROCODE_CBFS_SPLIT_BINS config which relies on converting
Intel CPU microcode INC file into the binary file as per format
specified as in `cpu_microcode_$(CPUID).bin`.
For example: Intel CPU microcode `m506e3.inc` to convert into
`cpu_microcode_506e3.bin` binary file for coreboot to integrate if
CPU_INTEL_MICROCODE_CBFS_SPLIT_BINS config is enabled.
Another config named CPU_INTEL_UCODE_SPLIT_BINARIES is used to specify
the directory name (including path) that holds the split microcode
binary files per CPUID for each coreboot variants.
For example: if google/kunimitsu had built with Intel SkyLake processor
with CPUID `506e3` and `506e4` then CPU_INTEL_UCODE_SPLIT_BINARIES
refers to the directory path that holds the split microcode binary
files aka cpu_microcode_506e3.bin and cpu_microcode_506e4.bin.
Refer to the file representation below:
|---3rdparty
| |--- blobs
| | |--- mainboard
| | | |--- google
| | | | |--- kunimitsu
| | | | | |--- microcode_inputs
| | | | | | |--- kunimitsu
| | | | | | | |--- cpu_microcode_506e3.bin
| | | | | | | |--- cpu_microcode_506e4.bin
Users of this config option requires to manually place the microcode
binary files per CPUIDs as per the given format
(`cpu_microcode_$(CPUID).bin`) in a directory. Finally specify the
microcode binary directory path using CPU_UCODE_SPLIT_BINARIES config.
Additionally, modified the `find_cbfs_microcode()` logic to search
microcode from CBFS by CPUID. This change will improve the microcode
verification time from the CBFS, and will make it easier to update
individual microcodes.
BUG=b:242473942
TEST=emerge-rex sys-firmware/mtl-ucode-firmware-private
coreboot-private-files-baseboard-rex coreboot
Able to optimize ~10ms of boot time while loading microcode using
below configuration.
CONFIG_CPU_MICROCODE_CBFS_SPLIT_BINS=y
CONFIG_CPU_UCODE_SPLIT_BINARIES="3rdparty/blobs/mainboard/
$(CONFIG_MAINBOARD_DIR)/microcode_inputs"
Without this patch:
10:start of ramstage 1,005,139 (44)
971:loading FSP-S 1,026,619 (21,479)
> RO/RW-A/RW-B CBFS contains unified cpu_microcode_blob.bin
Name Offset Type Size Comp
...
cpu_microcode_blob.bin 0x1f740 microcode 273408 none
intel_fit 0x623c0 intel_fit 80 none
...
...
bootblock 0x3ee200 bootblock 32192 none
With this patch:
10:start of ramstage 997,495 (43)
971:loading FSP-S 1,010,148 (12,653)
> RO/RW-A/B CBFS that stores split microcode files per CPUID
FMAP REGION: FW_MAIN_A
Name Offset Type Size Comp
fallback/romstage 0x0 stage 127632 none
cpu_microcode_a06a1.bin 0x1f340 microcode 137216 none
cpu_microcode_a06a2.bin 0x40bc0 microcode 136192 none
...
...
ecrw 0x181280 raw 327680 none
fallback/payload 0x1d1300 simple elf 127443 none
At reset, able to load the correct microcode using FIT table (RO CBFS)
[NOTE ] coreboot-coreboot-unknown.9999.3ad3153 Sat May 20 12:29:19
UTC 2023 x86_32 bootblock starting (log level: 8)...
[DEBUG] CPU: Genuine Intel(R) 0000
[DEBUG] CPU: ID a06a1, MeteorLake A0, ucode: 00000016
Able to find `cpu_microcode_a06a1.bin` on google/rex with ES1 CPU
stepping (w/ CPUID 0xA06A1) (from RW CBFS)
localhost ~ # cbmem -c -1 | grep microcode
[DEBUG] microcode: sig=0xa06a1 pf=0x80 revision=0x16
[INFO ] CBFS: Found 'cpu_microcode_a06a1.bin' @0x407c0 size 0x21800 in
mcache @0x75c0d0e0
[INFO ] microcode: Update skipped, already up-to-date
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ic7db73335ffa25399869cfb0d59129ee118f1012
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75357
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
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This patch changes the default behaviour of the MICROCODE_UPDATE_PRE_RAM
config for the platform with FIT (CPU_INTEL_FIRMWARE_INTERFACE_TABLE)
enabled. If FIT is enabled then microcode update will be taken care of
by FIT at pre-cpu reset hence, microcode update at pre-ram phase can be
skipped.
BUG=b:242473942
TEST=Able to build and boot google/rex with MICROCODE_UPDATE_PRE_RAM
remains disabled. No functional impact.
Without this patch:
CONFIG_MICROCODE_UPDATE_PRE_RAM=y
With this patch:
CONFIG_MICROCODE_UPDATE_PRE_RAM is not set
Change-Id: I603e064115869aba2bffa5589ffe47a44a90b848
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76234
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Also sort includes.
Change-Id: Ia4a3807e45777e2a596878fe09e3c80b1fd2704d
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69037
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
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Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: Ie760711916c49d275ca49d94b9597fd24b5e7628
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68203
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
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Change-Id: I9b710d279da6db9125519f58ecba109a4d9fa8e3
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61554
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
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This patch changes the serial message type to BIOS_WARNING as sometimes
it may raise a wrong signal when microcode resides inside other part
of the IFWI instead /CBFS.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I714bf74a91c2d783982c5e5ca76a70deed872473
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65316
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch adds an error msg if intel_microcode_find() is unable to
find a microcode for the CPU SKU.
TEST=Able to see the error msg in coreboot serial log in case packed
with wrong microcode binary.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ib4865575a44d2c8c6c3a20c2823a546d8f261e52
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65285
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch refactors the microcode loading and reloading API with a
helper function that perform the actual MSR write operation after
taking the microcode pointer from the caller function.
Also, convert the microcode loading failure msg type from `BIOS_INFO`
to `BIOS_ERR` to catch the error in proper.
TEST=Able to perform microcode loading on google/kano.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I9a7cdc2d2c9211f1e0c7921015126f7a1be87761
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65249
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch introduces a newer API to reload the microcode patch when
SoC selects RELOAD_MICROCODE_PATCH config.
Expected to call this API being independent of CPU MP Init regular
flow hence, doesn't regress the boot time.
BUG=b:233199592
TEST=Build and boot google/kano to ChromeOS.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: If480e44b88d04e5cb25d7104961b70f7be041a23
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65156
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
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Prior commit hash 0310d34c2 (cpu/intel/microcode: Have provision to
re-load microcode patch) introduces an option to reload the microcode
based on SoC selecting RELOAD_MICROCODE_PATCH config.
This patch might potentially introduce a boot time regression (~30ms)
when RELOAD_MICROCODE_PATCH kconfig is enabled as all cores might end up
reloading the microcode without the proper need.
Note: RELOAD_MICROCODE_PATCH kconfig is not yet selected by any SoC
hence, it doesn't impact any coreboot project.
The idea is reloading microcode depends on specific use case
(for example: Skip FSP doing MP Init from Alder Lake onwards) hence,
a follow up patch will create a newer API to allow reloading of
microcode when RELOAD_MICROCODE_PATCH config is enabled.
BUG=b:233199592
TEST=Build and boot google/kano to ChromeOS.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ie320153d25cefe153fc8a67db447384f1f20f31f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65155
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
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This patch provides an option to reload the microcode patch a.k.a
second microcode patch if SoC selects the required
RELOAD_MICROCODE_PATCH config.
There is a new feature requirement starting with ADL to re-load the
microcode patch as per new Mcheck initialization flow.
BUG=b:233199592
TEST=Build and boot google/taeko to ChromeOS. Able to re-load
microcode patch as below:
[INFO ] microcode: Re-load microcode patch
[INFO ] microcode: updated to revision 0x41b date=2022-03-08
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I0a3c29b3c25fccd31280a2a5a8d4fb22a6cf53bf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64833
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
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Commit 1aa60a95bd8363d2 broke microcode loading for chipsets that have a
microcode blob with a total_size field set to 0. This appears to be
support for older chipsets, where the size was set to 0 and assumed to
be 2048 bytes. The fix is to change the result of the subtraction to a
signed type, and ensure the following comparison is done without
promoting the signed type to an unsigned one.
Resolves: https://ticket.coreboot.org/issues/313
Change-Id: I62def8014fd3f3bbf607b4d58ddc4dca4c695622
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56153
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Stefan Ott <coreboot@desire.ch>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Microcode header supports advertising support for only one CPU
signature and processor flags. If there are multiple processor
families supported by this microcode blob, they are mentioned in
the extended signature table.
Add support to parse the extended processor signature table to
determine if the microcode blob supports the currently running CPU.
BUG=b:182234962
TEST=Booted ADL brya system with a processor whose signature/pf are
in the extended signature table of a microcode patch. Was able to
match and load the patch appropriately.
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Change-Id: I1466caf4a4ba1f9a0214bdde19cce57dd65dacbd
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54734
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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CB:49896 added support in `intel_microcode_find()` to cache the found
microcode for faster subsequent accesses. This works okay when the
function succeeds in finding the microcode on BSP. However, if for any
reason, `cpu_microcode_blob.bin` does not contain a valid microcode
for the given processor, then the logic ends up attempting to find
microcode again and again every time it is called (because
`ucode_updates` is set to NULL on failed find, thus retriggering the
whole find sequence every time). This leads to a weird race condition
when multiple APs are running in parallel and executing this
function.
A snippet of the issues observed in the scenario described above:
```
...
microcode: Update skipped, already up-to-date
...
Microcode header corrupted!
...
```
1. AP reports that microcode update is being skipped since the current
version matches the version in CBFS (even though there is no matching
microcode update in CBFS).
2. AP reports microcode header is corrupted because it thinks that the
data size reported in the microcode is larger than the file read from
CBFS.
Above issues occur because each time an AP calls
`intel_microcode_find()`, it might end up seeing some intermittent
state of `ucode_updates` and taking incorrect action.
This change fixes this race condition by separating the logic for
finding microcode into an internal function `find_cbfs_microcode()`
and maintaining the caching logic in `intel_microcode_find()` using a
boolean flag `microcode_checked`.
BUG=b:182232187
TEST=Verified that `intel_microcode_find()` no longer makes repeated
attempts to find microcode from CBFS if it failed the first time.
Change-Id: I8600c830ba029e5cb9c0d7e0f1af18d87c61ad3a
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51371
Reviewed-by: Patrick Rudolph
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Change-Id: I9b03105a6808a67c2101917e1822729407271627
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50441
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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Change-Id: If198fa68c0a29f46906151e667d7b00e2a3ab00d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49839
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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Cache the found microcode for faster subsequent accesses.
Change-Id: Ic40d57964600f8f20ddb26c7d1691b043fd89f29
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49896
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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For arch/x86 the realmode part has to be located within the same 64
KiB as the reset vector. Some older intel platforms also require 4 KiB
alignment for _start16bit.
To enforce the above, and to separate required parts of .text without
matching *(.text.*) rules in linker scripts, tag the pre-C environment
assembly code with section .init directive.
Description of .init section for ELF:
This section holds executable instructions that contribute to the
process initialization code. When a program starts to run, the
system arranges to execute the code in this section before calling the
main program entry point (called main for C programs).
Change-Id: If32518b1c19d08935727330314904b52a246af3c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47599
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.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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Allows to compile the file under x86_64 without errors.
The caller has to make sure to call the functions while in protected
mode, which is usually the case in early bootblock.
Change-Id: Ic6d98febb357226183c293c11ba7961f27fac40c
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48164
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
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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Done with sed and God Lines. Only done for C-like code for now.
Change-Id: I2adf28d805fe248d55a9514f74c38280c0ad9a78
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40049
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
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Change-Id: Ia05cb2de1b9f2a36fc9ecc22fb82f0c14da00a76
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39029
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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Change-Id: I8243be7c9a57402b2ac1cfa1c0552990d4a4ba74
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37891
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Intel's platforms use a GCC compiled bootblock.
Change-Id: I779d7115fee75df9356873e9cc66d43280821812
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37758
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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The romcc bootblock will be deprecated soon and most platforms use
C_ENVIRONMENT_BOOTBLOCK already. This patch drops the
CONFIG_C_ENVIRONMENT_BOOTBLOCK symbol and adds CONFIG_ROMCC_BOOTBLOCK
where needed.
Change-Id: I773a76aade623303b7cd95ebe9b0411e5a7ecbaf
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37154
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
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The typical do { } while (0) did not work, so
provide empty stub function instead.
Change-Id: Ieb0c33b082b4c4453d29d917f46561c0e672d09a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35588
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Change-Id: Ib12985dd9a12495533a82be556405f975a0abe27
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35587
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Make microcode lib available in bootblock. Now that microcode.c is compiled
in bootlock no need to include it explicitly, hence remove its references.
Change-Id: I419da6af70222902e3ca39fc2133d5dc8558e053
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35278
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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As discussed on the mailing list and voted upon, the coreboot project
is going to move the majority of copyrights out of the headers and into
an AUTHORS file. This will happen a bit at a time, as we'll be unifying
license headers at the same time.
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I39f52764dc377c25953ef5dba16982a0b4637cdb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35181
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Guckian
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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* Check if microcode is really updated.
* Enable more verbose output.
Change-Id: I534aa790c8d37b5f1603e1715635446835513a65
Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/29864
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
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Does not fix 3rdparty/, *.S or *.ld or yet.
Change-Id: I66b48013dd89540b35ab219d2b64bc13f5f19cda
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/17656
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Change-Id: Ie3c2d2e1bc79dcaffd9901e17f83ceeaabd1d659
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30682
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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The option to specify a binary file name was added later for platforms
that do not provide microcode updates in our blobs repository. Alas,
it wasn't visible what platforms these are. And if you specified a file
for a platform that already had one, they were all included together.
Make it visible which platforms don't provide binaries with the new con-
figs MICROCODE_BLOB_NOT_IN_BLOB_REPO, MICROCODE_BLOB_NOT_HOOKED_UP and
MICROCODE_BLOB_UNDISCLOSED. Based on that we can decide if we want to
include binaries by default or explicitly show that no files are inclu-
ded (default to CPU_MICROCODE_CBFS_NONE).
Also split CPU_MICROCODE_CBFS_GENERATE into the more explicit
CPU_MICROCODE_CBFS_DEFAULT_BINS and CPU_MICROCODE_CBFS_EXTERNAL_BINS.
And clean up the visibility of options: Don't show CBFS related options
on platforms that don't support it and don't show external file options
if the platform uses special rules for multiple files (CPU_MICROCODE_
MULTIPLE_FILES).
Change-Id: Ib403402e240d3531640a62ce93b7a93b4ef6ca5e
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/29934
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The value of %ebx was clobbered later on by a cpuid call.
A bitwise and needs to be used to check processor flags.
Change-Id: I29f1fddfe3cc2cbfc7c843b6aff7425f32e12317
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30680
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Link walkfcbfs.S in the C_ENVIRONMENT_BOOTBLOCK case and also in the
romstage.
This is useful for cbfs access in pre-CAR environments.
Change-Id: I9a17cdf01c7cbc3c9ac45ed1f075731f3e32f64b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30681
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Add code to update microcode from cbfsfiles using assembly.
Change-Id: I8bd192f3f345651db0010239f99293ae63b00652
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/27091
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
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Change-Id: I17c4fc4e3e2eeef7c720c6a020b37d8f7a0f57a4
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/29300
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: I849dd406f5ccc733d4957eaf1c774745782f531a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/28784
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
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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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Add 4 helper functions to get microcode info.
* get_current_microcode_rev
return the the version of the currently running microcode.
* get_microcode_rev
extract microcode revision from the given patch.
* get_microcode_size
extract microcode size from the given patch.
* get_microcode_checksum
extract checksum from the given patch.
The simpler thing would be to just move the struct microcode
to microcode.h so that the structure members can be dereferenced.
To encapsulate the structure details added the helper functions.
This information will be used in future to compare microcodes for update.
Change-Id: I67a08ba40b393874d8cc17363fefe21e2ea904f3
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/27365
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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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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Fix the following warning detected by checkpatch.pl:
WARNING: line over 80 characters
TEST=Build and run on Galileo Gen2
Change-Id: I74f25da5c53bd518189ce86817d6e3385b29c3b4
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18850
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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Fix the following errors and warnings detected by checkpatch.pl:
ERROR: spaces required around that '=' (ctx:VxV)
ERROR: space required after that ',' (ctx:VxV)
ERROR: space prohibited after that open parenthesis '('
ERROR: space prohibited before that close parenthesis ')'
ERROR: need consistent spacing around '-' (ctx:WxV)
ERROR: spaces required around that '>' (ctx:VxV)
ERROR: need consistent spacing around '>>' (ctx:WxV)
ERROR: need consistent spacing around '<<' (ctx:VxW)
ERROR: spaces required around that '||' (ctx:VxV)
ERROR: "foo * bar" should be "foo *bar"
ERROR: "(foo*)" should be "(foo *)"
WARNING: space prohibited between function name and open parenthesis '('
WARNING: storage class should be at the beginning of the declaration
TEST=Build and run on Galileo Gen2
Change-Id: I6602fbc8602171ab6c2f3b6c204558ad2c811179
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18847
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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Hardcoding the microcode filenames into the makefiles is great when
the microcode is in the blobs directory. When the microcode isn't
posted to the blobs directory, we need some method of supplying the
microcode binary into the build. This can of course be done manually
after the build has completed, as can be done with everything that
we're including in the ROM image. Instead of making life hard for
everyone though, let's just add a way to specify where the microcode
rom comes from.
BUG=chrome-os-partner:53013
Change-Id: I7c5127234809e8515906efa56c04af6005eecf0b
Signed-off-by: Martin Roth <martinroth@chromium.org>
Reviewed-on: https://review.coreboot.org/16386
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Omar Pakker
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Change-Id: I7fb9bfcaeec0b9dfd0695d2b2d398fd01091f6bc
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16286
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Omar Pakker
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Change-Id: Iebdcc659bf2a3e738702c85ee86dbb71b504721a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16279
Tested-by: build bot (Jenkins)
Reviewed-by: Omar Pakker
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Change-Id: I58d5c16de796a91fa14d8db78722024266c09a94
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/15934
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
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The previous usage of the intel microcode support supported using
the library under ROMCC and ramstage. Allow for microcode support
to be used in normal C-based romstage as well by:
1. Only using walkcbfs when ROMCC is defined.
2. Only using spinlocks if !__PRE_RAM__
The header file now unconditionally exposes the declarations
of the supporting functions.
Change-Id: I903578bcb4422b4c050903c53b60372b64b79af1
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13611
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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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>
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Some Intel SoCs which support SGX feature, report the
microcode patch revision one less than the actual revision.
This results in the same microcode patch getting loaded again.
Add a SoC specific check to avoid reloading the same patch.
BUG=chrome-os-partner:42046
BRANCH=None
TEST=Built for glados and tested on RVP3
CQ-DEPEND=CL:286054
Change-Id: Iab4c34c6c55119045947f598e89352867c67dcb8
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: ab2ed73db3581cd432f9bc84acca47f5e53a0e9b
Original-Change-Id: I4f7bf9c841e5800668208c11b0afcf8dba48a775
Original-Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/287513
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11055
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
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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>
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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>
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Now that we use the microcode updates in the blobs repository, remove
them from the main repo. Since the microcode updates are blobs, it
makes more sense to ship them in the blobs repo rather than the main
one.
The update-microcodes.sh script is also deleted, as a more current
version resides in 3rdparty.
Change-Id: Iee74a3ede3b5eb684ef0386d270120e70173c1b4
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/4531
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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When not building with CONFIG_SSE there are not enough
registers for ROMCC to use for spilling. The previous
changes to this file had too many local variables that
needed to be tracked -- thus causing romcc compilation
issues.
Change-Id: I3dd4b48be707f41ce273285e98ebd397c32a6a25
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4845
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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The sequence to inject microcode updates is virtually the same for all
Intel CPUs. The same function is used to inject the update in both CBFS
and hardcoded cases, and in both of these cases, the microcode resides in
the ROM. This should be a safe change across the board.
The function which loaded compiled-in microcode is also removed here in
order to prevent it from being used in the future.
The dummy terminators from microcode need to be removed if this change is
to work when generating microcode from several microcode_blob.c files, as
is the case for older socketed CPUs. Removal of dummy terminators is done
in a subsequent patch.
Change-Id: I2cc8220cc4cd4a87aa7fc750e6c60ccdfa9986e9
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/4495
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@gmail.com>
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Up until now, a dummy terminator was required for CBFS microcode files.
This was a coreboot only requirement in order to terminate the loop which
searches for updates.
Figure out where the microcode file ends, and exit the loop if we pass the
end of the CBFS without finding any updates.
Change-Id: Ib61247e83ae6b67b27fcd61bd40241d4cd7bd246
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/4505
Tested-by: build bot (Jenkins)
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@google.com>
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CPU_MICROCODE_IN_CBFS was designed to mean that loading microcode updates
from a CBFS file is supported, however, the name implies that microcode is
present in CBFS. This has recently caused confusion both with contributions
from Google, as well as SAGE. Rename this option to
SUPPORT_CPU_UCODE_IN_CBFS in order to make it clearer that what is meant is
"hey, the code we have for this CPU supports loading microcode updates from
CBFS", and prevent further confusion.
Change-Id: I394555f690b5ab4cac6fbd3ddbcb740ab1138339
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/4482
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
Tested-by: build bot (Jenkins)
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Add a safety check in function `intel_update_microcode` to return when
accidentally `NULL` is passed as `microcode_updates`, which would lead
to a null pointer dereference later on.
for (c = microcode_updates; m->hdrver; m = (const struct microcode *)c) {
While at it, use `return NULL` for clarity in function
`intel_microcode_find` and include the header file `stddef.h`. for it.
The review of this patch had some more discussion on adding more
comments and more detailed error messages. But this should be done in
a separate patch.
For clarity here some history, on how this was found and what caused
the discussion and confusion.
Originally when Vladimir made this improvement, selecting
`CPU_MICROCODE_IN_CBFS` in Kconfig but not having the microcode blob
`cpu_microcode_blob.bin` in CBFS resulted in a null pointer dereference
later on causing a crash.
for (c = microcode_updates; m->hdrver; m = (const struct microcode *)c) {
Vladimir fixed this by returning if `microcode_updates` is `NULL`,
that means no file is found and successfully tested this on his
Lenovo X201.
When pushing the patch to Gerrit for review, the code was rewritten
though by Aaron in commit »intel microcode: split up microcode loading
stages« (98ffb426) [1], which also returns when no file is found. So
the other parts of the code were checked and the safety check as
described above is added.
[1] http://review.coreboot.org/2778
Change-Id: I6e18fd37256910bf047061e4633a66cf29ad7b69
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/2990
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
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for latest URL of their microcode tar ball
Change-Id: I3da2bdac4b2ca7d3f48b20ed389f6a47275d24fe
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2842
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This patch only applies to CONFIG_MICROCODE_IN_CBFS. The intel microcode
update routine would always walk the CBFS for the microcode file. Then
it would loop through the whole file looking for a match then load the
microcode. This process was maintained for intel_update_microcode_from_cbfs(),
however 2 new functions were exported:
1. const void *intel_microcode_find(void)
2. void intel_microcode_load_unlocked(const void *microcode_patch)
The first locates a matching microcode while the second loads that
mircocode. These new functions can then be used to cache the found
microcode blob w/o having to re-walk the CBFS.
Booted baskingridge board to Linux and noted that all microcode
revisions match on all the CPUs.
Change-Id: Ifde3f3e5c100911c4f984dd56d36664a8acdf7d5
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2778
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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In the file `COPYING` in the coreboot repository and upstream [1]
just one space is used.
The following command was used to convert all files.
$ git grep -l 'MA 02' | xargs sed -i 's/MA 02/MA 02/'
[1] http://www.gnu.org/licenses/gpl-2.0.txt
Change-Id: Ic956dab2820a9e2ccb7841cab66966ba168f305f
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/2490
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
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Summary:
Isolate CBFS underlying I/O to board/arch-specific implementations as
"media stream", to allow loading and booting romstage on non-x86.
CBFS functions now all take a new "media source" parameter; use
CBFS_DEFAULT_MEDIA if you simply want to load from main firmware.
API Changes:
cbfs_find => cbfs_get_file.
cbfs_find_file => cbfs_get_file_content.
cbfs_get_file => cbfs_get_file_content with correct type.
CBFS used to work only on memory-mapped ROM (all x86). For platforms like ARM,
the ROM may come from USB, UART, or SPI -- any serial devices and not available
for memory mapping.
To support these devices (and allowing CBFS to read from multiple source
at the same time), CBFS operations are now virtual-ized into "cbfs_media". To
simplify porting existing code, every media source must support both "reading
into pre-allocated memory (read)" and "read and return an allocated buffer
(map)". For devices without native memory-mapped ROM, "cbfs_simple_buffer*"
provides simple memory mapping simulation.
Every CBFS function now takes a cbfs_media* as parameter. CBFS_DEFAULT_MEDIA
is defined for CBFS functions to automatically initialize a per-board default
media (CBFS will internally calls init_default_cbfs_media). Also revised CBFS
function names relying on memory mapped backend (ex, "cbfs_find" => actually
loads files). Now we only have two getters:
struct cbfs_file *entry = cbfs_get_file(media, name);
void *data = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, name, type);
Test results:
- Verified to work on x86/qemu.
- Compiles on ARM, and follow up commit will provide working SPI driver.
Change-Id: Iac911ded25a6f2feffbf3101a81364625bb07746
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2182
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Updating microcode on several threads in a core at once
can be harmful. Hence add a spinlock to make sure that
does not happen.
Change-Id: I0c9526b6194202ae7ab5c66361fe04ce137372cc
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1778
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This patch aims to improve the microcode in CBFS handling that was
brought by the last patches from Stefan and the Chromium team.
Choices in Kconfig
- 1) Generate microcode from tree (default)
- 2) Include external microcode file
- 3) Do not put microcode in CBFS
The idea is to give the user full control over including non-free
blobs in the final ROM image.
MICROCODE_INCLUDE_PATH Kconfig variable is eliminated. Microcode
is handled by a special class, cpu_microcode, as such:
cpu_microcode-y += microcode_file.c
MICROCODE_IN_CBFS should, in the future, be eliminated. Right now it is
needed by intel microcode updating. Once all intel cpus are converted to
cbfs updating, this variable can go away.
These files are then compiled and assembled into a binary CBFS file.
The advantage of doing it this way versus the current method is that
1) The rule is CPU-agnostic
2) Gives user more control over if and how to include microcode blobs
3) The rules for building the microcode binary are kept in
src/cpu/Makefile.inc, and thus would not clobber the other makefiles,
which are already overloaded and very difficult to navigate.
Change-Id: I38d0c9851691aa112e93031860e94895857ebb76
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/1245
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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Date and time are mixed up:
microcode: updated to revision 0x12 date=2012-12-04
should be
microcode: updated to revision 0x12 date=2012-04-12
Change-Id: I85f9100f31d88bb831bef07131f361c92c7ef34e
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1334
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
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When microcode storage in CBFS is enabled, the make system is supposed
to generate the microcode blob and place it into the generated ROM
image as a CBFS component.
The microcode source representation does not change: it is still an
array of 32 bit constants. This new addition compiles the array into a
separate object file and then strips all sections but data.
The raw data section is then included into CBFS as a file named
'microcode_blob.bin' of type 0x53, which is assigned to microcode
storage.
Change-Id: I84ae040be52f520b106e3471c7e391e64d7847d9
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: http://review.coreboot.org/1295
Tested-by: build bot (Jenkins)
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When CONFIG_MICROCODE_IN_CBFS is enabled, find the microcode blob in
CBFS and pass it to intel_update_microcode() instead of using the
compiled in array.
CBFS accesses in pre-RAM and 'normal' environments are provided
through different API.
Change-Id: I35c1480edf87e550a7b88c4aadf079cf3ff86b5d
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: http://review.coreboot.org/1296
Tested-by: build bot (Jenkins)
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Another bug in the Intel microcode update code that existed since we switched
to LinuxBIOSv2 in 2004:
The inline assembly code that reads the CPU revision from an MSR after running
cpuid(1) trashes registers EBX and ECX. Only ECX was mentioned in the clobber
list. C code running after this function could silently access completely wrong
data, which resulted in the wrong date being printed on microcode updates (and
potentially other issues happening until the C code writes to EBX again)
Change-Id: Ida733fa1747565ec9824d3a37d08b1a73cd8355f
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/996
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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If microcode.c is built by romcc, this indicates that we are running
microcode updates in the bootblock (e.g. before enabling cache as ram).
In this case we did not enable any consoles yet, so we don't output
anything.
This patch removes inclusion of the unnecessary console/console.h for
that case, which was breaking with certain configurations.
Change-Id: Iebb57794d7b1e84cac253d249d47b88de4dd28a3
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/988
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Most subsystems print their name with a colon, and then the
message. Do the same thing for the microcode update code.
Also, each microcode update has a date header. Print the
date from that header to make it easier to determine whether
you're running the latest microcode.
Change-Id: Ic22947c4b9f0502d4091d975e1f1ab42f70aa1aa
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/929
Reviewed-by: Peter Stuge <peter@stuge.se>
Tested-by: build bot (Jenkins)
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- add GPLv2 + copyright header after talking to Ron
- "bits" in struct microcode served no real purpose but
getting its address taken. Hence drop it
- use asm volatile instead of __asm__ volatile
- drop superfluous wrmsr (that seems to be harmless but
is still wrong) in read_microcode_rev
- use u32 instead of unsigned int where appropriate
- make code usable both in bootblock and in ramstage
- drop ROMCC style print_debug statements
- drop microcode update copy in Sandybridge bootblock
Change-Id: Iec4d5c7bfac210194caf577e8d72446e6dfb4b86
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/928
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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Change-Id: I9f37e291c00c0640c6600d8fdd6dcc13c3e5b8d5
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/855
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This also has an additional benefit:
I was running "sh update-microcodes.sh" previously which broke with
update-microcodes.sh: 102: Bad substitution
due to the script requiring /bin/bash instead of /bin/sh (uses bash-specific
stuff). Running "bash update-microcodes.sh" works fine.
Making the script executable in svn reduces the likelyhood of people
running the script with differing shells that may not work.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5963 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Stefan Reinauer <stepan@coreboot.org>
Acked-by: Stefan Reinauer <stepan@coreboot.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5961 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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at the same time let the user specify sources instead
of object files:
- objs becomes ramstage-srcs
- initobjs becomes romstage-srcs
- driver becomes driver-srcs
- smmobj becomes smm-srcs
The user servicable parts are named accordingly:
ramstage-y, romstage-y, driver-y, smm-y
Also, the object file names are properly renamed now, using
.ramstage.o, .romstage.o, .driver.o, .smm.o suffixes consistently.
Remove stubbed out via/epia-m700 dsdt/ssdt files - they didn't
easily fit in the build system and aren't useful anyway.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coreystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5886 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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This still requires someone to adjust the #includes in the
model_XXX_init.c files but with a script we're getting closer
to automate the update of 3rd party files.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5593 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5590 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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while others dislike them being extra commits, let's clean them up once and
for all for the existing code. If it's ugly, let it only be ugly once :-)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5507 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Only some assembler files still have \r\n ... Can we move that part to C
completely?
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5342 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5089 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Works on Kontron, qemu, and serengeti.
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
tested on abuild only.
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4534 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3878 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1657 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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