Not all K3 platforms support low power mode, so to allow these
features to be included for platforms that do in build and
therefore reported in the PSCI caps, define K3_PM_SYSTEM_SUSPEND
flag that can be set during build that will cause appropriate
space and functionality to be included in build for system
suspend support.
Change-Id: I821fbbd5232d91de6c40f63254b855e285d9b3e8
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Increase the lite platform SEC_SRAM_SIZE to 128k to allow space
for GIC context.
Change-Id: I6414309757ce9a9b7b3a9233a401312bfc459a3b
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Add necessary K3 PSCI handlers to enable system suspend to be reported
in the PSCI capabilities when asked during OS boot.
Additionally, have the handlers provide information that all domains
should be off and also have the power domain suspend handler invoke the
TISCI_MSG_ENTER_SLEEP message to enter system suspend.
Change-Id: I351a16167770e9909e8ca525ee0d74fa93331194
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Add functions to save and restore GICv3 redist and dist contexts during
low power mode and then call these during the suspend entry and finish
psci handlers.
Change-Id: I26c2c0f3b7fc925de3b349499fa42d2405441577
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
This TISCI API must be used to trigger entry into system suspend, and
this is done through the use of TI_SCI_MSG_ENTER_SLEEP. Introduce a
method to send this message.
Change-Id: Id7af5fb2a34623ad69e76764f389ff4d8d259fba
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
* changes:
fix(versal): fix coverity scan warnings
feat(versal): get version for ATF related EEMI APIs
feat(versal): enhance PM_IOCTL EEMI API to support additional arg
feat(versal): add common interfaces to handle EEMI commands
Update the make command with the RESET_TO_BL31=1 addition.
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Change-Id: I46cc81abb539773706348464b3061d20d94522e9
The patch does below things.
1. As per current implementation, when Linux send a request to ATF to
get the version of APIs which are implemented in ATF then ATF wasn't
returning any version because there is a check for LIBPM module id.
The ATF is used to return version for the APIs which are implemented
in the firmware only.
Hence moved this switch-case before checking module id to get ATF
version.
Also, no need to pass Linux request to the firmware for the APIs
which are implemented in ATF instead return success after updating
version.
2. As per current implementation, higher 16-bit is used for ATF
version and lower 16-bit is used for firmware version. Now, removed
16-bit shift operation and send complete word i.e. 32-bit to Linux
user as there is no user who checks ATF version.
3. Add bit mask support in the feature check PM EEMI API for QUERY and
IOCTL ids.
Change-Id: Icdca3de6659f3b673b81a423ed79a3c20b678768
Signed-off-by: Ronak Jain <ronak.jain@xilinx.com>
Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com>
Currently, SMC handler is limited to parsing 5 arguments (1 API ID + 4
32-bit command args). Extend this handling to support one more 32-bit
command argument which is necessary to support new IOCTL IDs for
secure read/write interface.
Note that, this change is completely transparent and does not affect
existing functionality of any of the EEMI APIs.
Change-Id: I72016620eeeaf598f14853512120bfb30bb9a3e9
Signed-off-by: Izhar Ameer Shaikh <izhar.ameer.shaikh@xilinx.com>
Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com>
This change adds common interfaces to handle commands from firmware driver
to power management controller. It removes big chunk of source line of code
that was handling each command separately and doing same repetitive work.
EEMI - Embedded Energy Management Interface is Xilinx proprietary
protocol to allow communication between power management controller
and different processing clusters.
As of now, Each EEMI command has its own implementation in TF-A.
This is redundant. Essentially most EEMI command implementation
in TF-A does same work. It prepares payload received from kernel, sends
payload to firmware, receives response from firmware and send response
back to kernel.
The same functionality can be achieved if common interface is used among
multiple EEMI commands. This change divides platform management related
SMCCC requests into 4 categories.
1) EEMI commands required for backward compatibility.
Some EEMI commands are still required for backward compatibility
until removed completely or its use is changed to accommodate
common interface
2) EEMI commands that require for PSCI interface and accessed from debugfs
For example EEMI calls related to CPU suspend/resume
3) TF-A specific requests
Functionality such as getting TF-A version and getting callback
data for platform management is handled by this interface
4) Common interface for rest of EEMI commands
This handlers performs payload and firmware response transaction job for
rest of EEMI commands. Also it parses module ID from SMC payload and inserts
in IPI request. If not module ID is found, then default is LIBPM_MODULE_ID.
This helps in making common path in TF-A for all the modules in PLM firmware
Change-Id: I57a2787c7fff9f2e1d1f9003b3daab092632d57e
Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com>
Upgrade to the latest and greatest 2.x release of Mbed TLS library
(i.e. v2.28.0) to take advantage of their bug fixes.
Note that the Mbed TLS project published version 3.x some time
ago. However, as this is a major release with API breakages, upgrading
to 3.x might require some more involved changes in TF-A, which we are
not ready to do. We shall upgrade to mbed TLS 3.x after the v2.7
release of TF-A.
Change-Id: I887dfd87893169c7be53b986e6c43338d15949d7
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Upgrade to the latest and greatest 2.x release of Mbed TLS library
(i.e. v2.28.0) to take advantage of their bug fixes.
Note that the Mbed TLS project published version 3.x some time
ago. However, as this is a major release with API breakages, upgrading
to 3.x might require some more involved changes in TF-A, which we are
not ready to do. We shall upgrade to mbed TLS 3.x after the v2.7
release of TF-A.
Actually, the upgrade this time simply boils down to including the new
source code module 'constant_time.c' into the firmware.
To quote mbed TLS v2.28.0 release notes [1]:
The mbedcrypto library includes a new source code module
constant_time.c, containing various functions meant to resist timing
side channel attacks. This module does not have a separate
configuration option, and functions from this module will be
included in the build as required.
As a matter of fact, if one is attempting to link TF-A against mbed
TLS v2.28.0 without the present patch, one gets some linker errors
due to missing symbols from this new module.
Apart from this, none of the items listed in mbed TLS release
notes [1] directly affect TF-A. Special note on the following one:
Fix a bug in mbedtls_gcm_starts() when the bit length of the iv
exceeds 2^32.
In TF-A, we do use mbedtls_gcm_starts() when the firmware decryption
feature is enabled with AES-GCM as the authenticated decryption
algorithm (DECRYPTION_SUPPORT=aes_gcm). However, the iv_len variable
which gets passed to mbedtls_gcm_starts() is an unsigned int, i.e. a
32-bit value which by definition is always less than 2**32. Therefore,
we are immune to this bug.
With this upgrade, the size of BL1 and BL2 binaries does not appear to
change on a standard sample test build (with trusted boot and measured
boot enabled).
[1] https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.0
Change-Id: Icd5dbf527395e9e22c8fd6b77427188bd7237fd6
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Right now, TF-A documentation recommends downloading Arm compilers
from:
https://developer.arm.com/open-source/gnu-toolchain/gnu-a/downloads
However, this page is now deprecated, as indicated by the banner at
the top of the page. When navigating to the new recommended page, one
can see the following note, which provides the rationale for the
deprecation:
GNU Toolchain releases from Arm were published previously as two
separate releases - one for A-profile and the other for R & M
profiles (GNU Toolchain for A-profile processors and GNU Arm
Embedded Toolchain).
Arm GNU Toolchain releases unifies these two into a single release
and the previous way of releases therefore have been
discontinued. However, the previous releases will continue to be
available for reference.
This patch updates the link to the new recommended place for compiler
downloads.
Change-Id: Iefdea3866a1af806a5db2d2288edbb63c543b8ee
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Add Sieu Mun Tang and Benjamin Jit Loon Lim as new
Intel SocFPGA platform maintainers and remove the
rest of the Intel SocFPGA platform maintainers.
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: Ieb9a35e278d70a12351aaccab90ddc7be09dc861
* changes:
feat(spmc): add support for direct req/resp
feat(spmc): add support for handling FFA_ERROR ABI
feat(spmc): add support for FFA_MSG_WAIT
feat(spmc): add function to determine the return path from the SPMC
feat(spmd): enable handling of FF-A SMCs with the SPMC at EL3
feat(spmd): update SPMC init flow to use EL3 implementation
feat(spmc): add FF-A secure partition manager core
feat(spmc): prevent read only xlat tables with the EL3 SPMC
feat(spmc): enable building of the SPMC at EL3
refactor(spm_mm): reorganize secure partition manager code
Depending on the shell used, the grep command can fail, leading to
a wrong dtc version detection. Correct that by adding quotes.
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: I329ec929559c94bf1bf99b127662c9d978e067cf
With the transition to mailman3, the URLs of TF-A and TF-A Tests
mailing lists have changed. However, we still refer to the old
location, which are now dead links.
Update all relevant links throughout the documentation.
There is one link referring to a specific thread on the TF-A mailing
list in the SPM documentation, for which I had to make a guess as to
what's the equivalent mailman3 URL. The old URL scheme indicates that
the thread dates from February 2020 but beyond that, I could not make
sense of the thread id within the old URL so I picked the most likely
match amongst the 3 emails posted on the subject in this time period.
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Reported-by: Kuohong Wang <kuohong.wang@mediatek.com>
Change-Id: I83f4843afd1dd46f885df225931d8458152dbb58
Enable the SPMC to handle FFA_MSG_SEND_DIRECT_REQ and
FFA_MSG_SEND_DIRECT_RESP ABIs.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: Ia196c7405993f600e4fdbf467397ea3fb035a62a
This ABI is only valid during SP initialisation to indicate
failure. If this occurs during SP initialisation signal a failure,
otherwise respond with a not supported error code.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I0182a1641c0f6850e82173af333be79b594f2318
Handle an incoming call of FFA_MSG_WAIT from the secure world
and update the runtime state of the calling partition accordingly.
This ABI can be called in the following scenarios:
- Used by an SP to signal it has finished initializing.
- To resume the normal world after handling a secure interrupt
that interrupted the normal world.
- To relinquish control back to the normal world.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I929713a2280e8ec291b5b4e8f6d4b49df337228c
Use knowledge of the target partition ID and source security state
to determine which route should be used to exit the SPMC.
There are 3 exit paths:
1) Return to the normal world via the SPMD, this will take care of
switching contexts if required.
2) Return to the secure world when the call originated in the normal
world and therefore switch contexts.
3) Return to the secure world when the call originated in the secure
world, therefore we can return directly.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I4037f3a8a8519e2c9f1876be92806d2c41d0d154
Any FF-A SMC that arrives from the normal world is handled by the
SPMD before being forwarded to the SPMC. Similarly any SMC
arriving from the secure world will hit the SPMC first and be
forwarded to the SPMD if required, otherwise the SPMC will
respond directly.
This allows for the existing flow of handling FF-A ABI's when
the SPMC resides at a lower EL to be preserved.
In order to facilitate this flow the spmd_smc_forward function
has been split and control is either passed to the SPMC or it is
forwarded as before. To allow this the flags and cookie parameters
must now also be passed into this method as the SPMC must be able to
provide these when calling back into the SPMD handler as appropriate.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I84fee8390023295b9689067e14cd25cba23ca39b
Allow the SPMD to initialise an SPMC implementation at EL3 directly
rather than at a lower EL.
This includes removing the requirement to parse an SPMC manifest to
obtain information about the SPMC implementation, in this case since the
SPMD and SPMC reside in the same EL we can hardcode the required
information directly.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I66d1e1b3ec2d0abbfc28b011a32445ee890a331d
This patch introduces the core support for enabling an SPMC in EL3
as per the FF-A spec.
The current implemented functionality is targeted to enable
initialization of the SPMC itself and initial support for
bringing up a single S-EL1 SP.
This includes initialization of the SPMC's internal state,
parsing of an SP's manifest, preparing the cpu contexts and
appropriate system registers for the Secure Partition.
The spmc_smc_handler is the main handler for all incoming SMCs
to the SPMC, FF-A ABI handlers and functionality will
be implemented in subsequent patches.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: Ib33c240b91e54cbd018a69fec880d02adfbe12b9
* changes:
refactor(stm32mp1-fdts): remove nvmem_layout node
refactor(stm32mp1): drop the "st,stm32-nvmem-layout" node
refactor(st): remove useless includes
The current implementation uses plat_arm API under generic code.
"plat_arm" API is a convention used with Arm common platform layer
and is reserved for that purpose. In addition, the function has a
weak definition which is not encouraged in TF-A.
Henceforth, removing the weak API with a configurable macro "TWED_DELAY"
of numeric data type in generic code and simplifying the implementation.
By default "TWED_DELAY" is defined to zero, and the delay value need to
be explicitly set by the platforms during buildtime.
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
Change-Id: I25cd6f628e863dc40415ced3a82d0662fdf2d75a
The result variable is not being used so it's better to delete it.
Signed-off-by: Jorge Troncoso <jatron@google.com>
Change-Id: Icae614076ce1ba7cdc86267473d59a8bec682f6c
If using the EL3 SPMC ensure that we don't mark the translation
tables as read only. The SPMC requires the ability to map and
unmap a partitions RX/TX buffers at runtime.
Signed-off-by: Sayanta Pattanayak <sayanta.pattanayak@arm.com>
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: Ibb78a6a2e3847ce4ec74ce81a9bb61ce34fec24c
Introduce build flag for enabling the secure partition
manager core, SPMC_AT_EL3. When enabled, the SPMC module
will be included into the BL31 image. By default the
flag is disabled.
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I5ea1b953e5880a07ffc91c4dea876a375850cf2a