This patch adds the errata management firmware interface for lower ELs
to discover details about CPU erratum. Based on the CPU erratum
identifier the interface enables the OS to find the mitigation of an
erratum in EL3.
The ABI can only be present in a system that is compliant with SMCCCv1.1
or higher. This implements v1.0 of the errata ABI spec.
For details on all possible return values, refer the design
documentation below:
ABI design documentation:
https://developer.arm.com/documentation/den0100/1-0?lang=en
Signed-off-by: Sona Mathew <SonaRebecca.Mathew@arm.com>
Change-Id: I70f0e2569cf92e6e02ad82e3e77874546232b89a
This patch adds a helper API to explicitly refresh SBSA secure watchdog
timer. Please refer section A.3 of the following spec:
https://developer.arm.com/documentation/den0029/latest/
Change-Id: I2d0943792aea0092bee1e51d74b908348587e66b
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
FEAT_SME2 is an extension of FEAT_SME and an optional feature
from v9.2. Its an extension of SME, wherein it not only
processes matrix operations efficiently, but also provides
outer-product instructions to accelerate matrix operations.
It affords instructions for multi-vector operations.
Further, it adds an 512 bit architectural register ZT0.
This patch implements all the changes introduced with FEAT_SME2
to ensure that the instructions are allowed to access ZT0
register from Non-secure lower exception levels.
Additionally, it adds support to ensure FEAT_SME2 is aligned
with the existing FEATURE DETECTION mechanism, and documented.
Change-Id: Iee0f61943304a9cfc3db8f986047b1321d0a6463
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
This was omitted from the patch adding the feature.
Signed-off-by: Mark Brown <broonie@kernel.org>
Change-Id: Ie7f2b63434a70320178be74fc3f165618aca8392
Arm v9.4 introduces support for Guarded Control Stack, providing
mitigations against some forms of RPO attacks and an efficient mechanism
for obtaining the current call stack without requiring a full stack
unwind. Enable access to this feature for EL2 and below, context
switching the newly added EL2 registers as appropriate.
Change the FVP platform to default to handling this as a dynamic option
so the right decision can be made by the code at runtime.
Signed-off-by: Mark Brown <broonie@kernel.org>
Change-Id: I691aa7c22e3547bb3abe98d96993baf18c5f0e7b
These include directives were missing from both `uuid.h` files.
Change-Id: I875dfda3e0985728277b72f0e7597dde5cf9d304
Signed-off-by: Chris Kay <chris.kay@arm.com>
The FEATURE_DETECTION functionality had some definitions in a header
file, although they were only used internally in the .c file.
Move them over there, since there are of no interest to other users.
Also use the opportuntiy to rename the less telling FEAT_STATE_[12]
names, and let the "0" case join the game. We use DISABLED, ALWAYS, and
CHECK now, so that the casual reader has some idea what those numbers
are supposed to mean.
feature_panic() becomes "static inline", since disabling all features
makes it unused, so the compiler complains otherwise.
Finally add a new category "cpufeat" to cover CPU feature related
changes.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Change-Id: If0c8ba91ad22440260ccff383c33bdd055eefbdc
This patch adds the following changes to complete the existing
TRNG implementation:
1. Adds a feature specific scope for buildlog generation.
2. Updates the docs on the build flag "TRNG_SUPPORT" and its values.
3. Makefile update and improves the existing comments at few sections
for better understanding of the underlying logic.
Change-Id: I3f72f0ccd5c94005a2df87158cf23199d2160d37
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Add missing scopes from commits for the upcoming release.
Change-Id: I22e38fb0658e42b45591c82aa30e063f7a7edc86
Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
Added new scope for mbedTLS and Crypto module.
Change-Id: I127e7e32f103210e0a1c4c3072afa7249a24a7db
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
This patch adds a news scope for FEAT_PMUV3, alongside
updating the existing comments related to the saving of
PMCR_EL0 register routine for better understanding.
Change-Id: Ib150244ce94cfcbbe5d12fdae56327c3d72bda0b
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
The code checks that the semihosting seek call return value is not
zero instead of a negative value when there is an error condition.
This defect has been fixed.
In [1], possible return values for semihosting seek calls are
mentioned.
[1]: https://github.com/ARM-software/abi-aa/blob/main/semihosting/
semihosting.rst#sys-seek-0x0a
Change-Id: I70f09e98323e9c5bf4eeda322ac065e855e256fc
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
FEAT_RNG_TRAP introduces support for EL3 trapping of reads of the
RNDR and RNDRRS registers, which is enabled by setting the
SCR_EL3.TRNDR bit. This patch adds a new build flag
ENABLE_FEAT_RNG_TRAP that enables the feature.
This feature is supported only in AArch64 state from Armv8.5 onwards.
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>
Change-Id: Ia9f17aef3444d3822bf03809036a1f668c9f2d89
Some fdts changes in STM32MP1 family can be dedicated to one SoC,
STM32MP13 or STM32MP15. Add the dedicated scopes.
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I2d64244054251c1f89dfe1ebbf6ce9dac21d47b6
This patch adds the infrastructure needed to pass boot arguments from
EL3 to RMM and allocates a shared buffer between both worlds that can
be used, among others, to pass a boot manifest to RMM. The buffer is
composed a single memory page be used by a later EL3 <-> RMM interface
by all CPUs.
The RMM boot manifest is not implemented by this patch.
In addition to that, this patch also enables support for RMM when
RESET_TO_BL31 is enabled.
Signed-off-by: Javier Almansa Sobrino <javier.almansasobrino@arm.com>
Change-Id: I855cd4758ee3843eadd9fb482d70a6d18954d82a
This patch splits the el2_sysregs_context_save/restore functions
into multiple functions based on features. This will allow us to
selectively save and restore EL2 context registers based on
features enabled for a particular configuration.
For now feature build flags are used to decide which registers
to save and restore. The long term plan is to dynamically check
for features that are enabled and then save/restore registers
accordingly. Splitting el2_sysregs_context_save/restore functions
into smaller assembly functions makes that task easier. For more
information please take a look at:
https://trustedfirmware-a.readthedocs.io/en/latest/design_documents/context_mgmt_rework.html
Signed-off-by: Zelalem Aweke <zelalem.aweke@arm.com>
Change-Id: I1819a9de8b70fa35c8f45568908025f790c4808c
The STM32MP1 series includes STM32MP13 and STM32MP15. As some features
may be dedicated to one SoC variant, add the 2 entries in the scopes
list.
While at it, correct the title for STM32MP1.
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I521d0e1dfdda0638ab9970c93821cf08efbd183a
Add new scopes for ls1088a SoC, RDB and QDS boards.
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: I7c0018ecee3c590253cf258851a28c4dd7f9c1a1
1. Add scopes for ls1046a and related boards: ls1046ardb,
ls1046aqds, ls1046afwry.
2. Add new scope for NXP QSPI driver.
3. Add new scope for NXP tools.
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: I68ef7dd25628b393dbfbb8dbf59d5185945ea61c
Allow access to PMSNEVFR_EL1 register at NS-EL1 or NS-EL2 when
FEAT_SPEv1p2 is implemented.
Change-Id: I44b1de93526dbe9c11fd061d876371a6c0e6fa9c
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
The Qualcomm Snapdragon 410 is Qualcomm's first 64-bit SoC, released
in 2014 with four ARM Cortex-A53 cores. There are differents variants
(MSM8916, APQ8016(E), ...) that are all very similar. A popular device
based on APQ8016E is the DragonBoard 410c single-board computer,
but the SoC is also used in various mid-range smartphones/tablets.
This commit adds documentation for a minimal, community-maintained port
of TF-A/BL31 for MSM8916. The actual platform port is added in the
following four separate small commits to simplify the review process.
The code is primarily based on the information from the public
Snapdragon 410E Technical Reference Manual [1], combined with a lot of
trial and error to actually make it work.
Note that this port is a pure community effort without any
commercial interests and is not related to Qualcomm in any way.
The main motivation for this port is to have a minimal, updatable
firmware since this old chip does not receive many updates anymore from
Qualcomm. It works quite well for many use cases so I am willing to
maintain it as a "code owner". I have also added Nikita Travkin as
second code owner to help with reviews.
The main limitation so far is the lack of memory protection for TF-A.
This is similar to the ports for the Raspberry Pi but in this case not
a lack of hardware support but rather a lack of documentation. However,
this does not limit the usefulness of the port when used as a minimal
PSCI implementation.
[1]: https://developer.qualcomm.com/download/sd410/snapdragon-410e-technical-reference-manual.pdf
Change-Id: I676adf86061638cfc2f3ae8615470d145e84f172
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Some of the ST drivers were not listed, and had no scopes. Add BSEC,
Crypto, DDR, I2C, FMC, GPIO, Regulator, Reset, SPI and Watchdog.
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I4441f160f778d4bf7686e24e7d2d3c8330891327
Add a valid scope for the partition code under the drivers directory.
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Change-Id: I173ac45e4ccbc95566277dabef15dcd25533e097
This change replaces cz-conventional-changelog with cz-commitlint, which
automatically configures Commitizen using our commitlint configuration
file. Currently, we use some manual Javascript magic to load our
Commitizen configuration into commitlint (the opposite of what's
introduced by this change), which can be removed.
With this change, we also move our commitlint configuration into a
new `changelog.yaml` file. This file holds the same data as `.cz.json`
previously did.
Change-Id: I14ff2308f1a0b2b293c2128b28ca2df578ce9c1c
Signed-off-by: Chris Kay <chris.kay@arm.com>
Sona Mathew
Madhukar Pappireddy
Jayanth Dodderi Chidanand
Mark Brown
Chris Kay
Sandrine Bailleux
Andre Przywara
Yann Gautier
laurenw-arm
Daniel Boulby
Manish V Badarkhe
Shruti Gupta
Juan Pablo Conde
Javier Almansa Sobrino
Zelalem Aweke
Jiafei Pan
Dave Gerlach
Sieu Mun Tang
Stephan Gerhold
Sughosh Ganu