feat(spmc): support FFA_ID_GET ABI

Allow for a partition to retrieve its own partition ID.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I1a19ac30b86736d818673c239b2f8fd2d6128c06

feat(spmc): add FFA_FEATURES handler

Enable the spmc to report the features that it currently supports.
Populated with the currently implemented functionality.

Signed-off-by: Marc Bonnici <marc.bon

feat(spmc): add FFA_FEATURES handler

Enable the spmc to report the features that it currently supports.
Populated with the currently implemented functionality.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I00e51ded284efd87cd50a0e9416dbc33f22ced85

show more ...

feat(spmc): add FFA_PARTITION_INFO_GET handler

Enable the SPMC to handle calls to FFA_PARTITION_INFO_GET.
This allows the normal world to discover which partitions
are running in the secure world in

feat(spmc): add FFA_PARTITION_INFO_GET handler

Enable the SPMC to handle calls to FFA_PARTITION_INFO_GET.
This allows the normal world to discover which partitions
are running in the secure world including logical partitions
in EL3.

This implementation supports both the v1.0 and v1.1
implementations of the Partition Info Get Descriptor.
The SPMC populates the appropriate descriptor in the
partitions RX buffer, if requested, according to the
version of FF-A that the caller is using.

Additionally rename the common/uuid UUID_H include guard
due to a conflict with another header file.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I0a85f1dae50fae1fe47a3cafb765fbe9f40619e1

show more ...

feat(spmc): enable handling FF-A RX/TX Mapping ABIs

Enable handling of FFA_RXTX_MAP and FFA_RXTX_UNMAP ABIs
and ensure these buffers are mapped as required to allow
access by the SPMC.

Signed-off-b

feat(spmc): enable handling FF-A RX/TX Mapping ABIs

Enable handling of FFA_RXTX_MAP and FFA_RXTX_UNMAP ABIs
and ensure these buffers are mapped as required to allow
access by the SPMC.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: Ifc425f1ee16c90d1d95b6ae4ac9992d6f785227b

show more ...

feat(spm_mm): add support to save and restore fp regs

Add the support to save Nwd's floating point registers before switching
to SEL0 and then restore it after coming out of it. Emit a warning
messa

feat(spm_mm): add support to save and restore fp regs

Add the support to save Nwd's floating point registers before switching
to SEL0 and then restore it after coming out of it. Emit a warning
message if SPM_MM is built with CTX_INCLUDE_FPREGS == 0

There is no need to save FP registers of SEL0 because secure partitions
run to completion.

This change is used to prevent context corruption if secure partition
enabled and Nwd decide to use floating point registers.

Signed-off-by: Nishant Sharma <nishant.sharma@arm.com>
Change-Id: I1eea16ea2311a4f00a806ea72c118752821b9abb

show more ...

feat(spmc): add helper to obtain a partitions FF-A version

Add a helper function to obtain the FF-A version of a calling
partition. This is used to ensure that the SPMC maintains
backwards compatibi

feat(spmc): add helper to obtain a partitions FF-A version

Add a helper function to obtain the FF-A version of a calling
partition. This is used to ensure that the SPMC maintains
backwards compatibility if the partition implements a lower
minor version for the same major version than the SPMC.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I5b364a1e510a999bb0c4cacae28f23f8a42a1e3e

show more ...

feat(spmd): enable SPMD to forward FFA_VERSION to EL3 SPMC

In order to allow the EL3 SPMC to know the FF-A version of the
entity running in the normal world, allow the SPMD to
forward the call rathe

feat(spmd): enable SPMD to forward FFA_VERSION to EL3 SPMC

In order to allow the EL3 SPMC to know the FF-A version of the
entity running in the normal world, allow the SPMD to
forward the call rather than replying on its behalf.

This solution works as the EL3 can ERET directly back to
the calling partition however this is not an option
when the SPMC resides in a lower exception level. A new
approach will be required to support such scenario.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: Ic2d6e49c06340167eadefe893c6e1e20b67ab498

show more ...

feat(spmc): enable handling FFA_VERSION ABI

Report the SPMC version to the caller, currently v1.1 and
also store the requested version to allow the SPMC to
use the corresponding FF-A version in futu

feat(spmc): enable handling FFA_VERSION ABI

Report the SPMC version to the caller, currently v1.1 and
also store the requested version to allow the SPMC to
use the corresponding FF-A version in future ABI calls.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I79aafd1e6694cbd4b231bbd0cac5834a71063d79

show more ...

feat(spmc): add helper function to obtain endpoint mailbox

Add a helper function to obtain the relevant mailbox buffers
depending on which entity was last run. This will be used in
subsequent functi

feat(spmc): add helper function to obtain endpoint mailbox

Add a helper function to obtain the relevant mailbox buffers
depending on which entity was last run. This will be used in
subsequent functionality to populate requested information in
the callers RX buffer.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I85959ced4d1454be05a7b3fb6853ed3ab7f0cf3e

show more ...

feat(spmc): add helper function to obtain hyp structure

We assume that the first descriptor in the normal world
endpoints is reserved for the hypervisor and add a helper
function to enable retrievin

feat(spmc): add helper function to obtain hyp structure

We assume that the first descriptor in the normal world
endpoints is reserved for the hypervisor and add a helper
function to enable retrieving this directly.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I67c3589994eb820ef420db6ab7e8bd0825d64455

show more ...

feat(spmc): enable parsing of messaging methods from manifest

Ensure that the `messaging-methods` entry is populated in
an SP's manifest. Currently only direct messaging is supported
so alert if thi

feat(spmc): enable parsing of messaging methods from manifest

Ensure that the `messaging-methods` entry is populated in
an SP's manifest. Currently only direct messaging is supported
so alert if this does not match the manifest entry.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I67f1fad71a3507627993a004e0f8579388faf178

show more ...

feat(spmc): enable checking of execution ctx count

This is a mandatory entry in an SP's manifest however
currently an S-EL1 partition running under the EL3 SPMC
must have the same amount of executio

feat(spmc): enable checking of execution ctx count

This is a mandatory entry in an SP's manifest however
currently an S-EL1 partition running under the EL3 SPMC
must have the same amount of execution contexts as
physical cores therefore just check the entry matches
this value.

Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>
Change-Id: I4c2a85ccde7a7bb9b1232cf6389a8c532cbf3d41

show more ...

feat(spmc): enable parsing of UUID from SP Manifest

To align with other SPMC implementations parse the UUID
from the SP manifest as 4 uint32 values and store
this internally.

Change-Id: I7de5d5ef8d

feat(spmc): enable parsing of UUID from SP Manifest

To align with other SPMC implementations parse the UUID
from the SP manifest as 4 uint32 values and store
this internally.

Change-Id: I7de5d5ef8d98dc14bc7c76892133c2333358a379
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>

show more ...

feat(spmc): add partition mailbox structs

Add mailbox structs to the partition descriptors
and ensure these are initialised correctly.

Change-Id: Ie80166d19763c266b6a1d23e351d312dc31fb221
Signed-of

feat(spmc): add partition mailbox structs

Add mailbox structs to the partition descriptors
and ensure these are initialised correctly.

Change-Id: Ie80166d19763c266b6a1d23e351d312dc31fb221
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>

show more ...

test(plat/fvp/lsp): add example logical partition

Add an example logical partition to the FVP platform that
simply prints and echos the contents of a direct request
with the appropriate direct respo

test(plat/fvp/lsp): add example logical partition

Add an example logical partition to the FVP platform that
simply prints and echos the contents of a direct request
with the appropriate direct response.

Change-Id: Ib2052c9a63a74830e5e83bd8c128c5f9b0d94658
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>

show more ...

feat(spmc/lsp): add logical partition framework

Introduce a framework to support running logical
partitions alongside the SPMC in EL3 as per the
v1.1 FF-A spec.

The DECLARE_LOGICAL_PARTITION macro

feat(spmc/lsp): add logical partition framework

Introduce a framework to support running logical
partitions alongside the SPMC in EL3 as per the
v1.1 FF-A spec.

The DECLARE_LOGICAL_PARTITION macro has been added to
simplify the process to define a Logical Partition.
The partitions themselves are statically allocated
with the descriptors placed in RO memory.

It is assumed that the MAX_EL3_LP_DESCS_COUNT will
be defined by the platform.

Change-Id: I1c2523e0ad2d9c5d36aeeef6b8bcb1e80db7c443
Signed-off-by: Marc Bonnici <marc.bonnici@arm.com>

show more ...

Merge changes from topic "ffa_el3_spmc" into integration

* changes:
feat(spmc): add support for direct req/resp
feat(spmc): add support for handling FFA_ERROR ABI
feat(spmc): add support for F

Merge changes from topic "ffa_el3_spmc" into integration

* 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

show more ...

Merge "feat(spm): add FFA_RX_ACQUIRE forwarding in SPMD" into integration

feat(spmc): add support for direct req/resp

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: Ia196c

feat(spmc): add support for direct req/resp

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

show more ...

feat(spmc): add support for handling FFA_ERROR ABI

This ABI is only valid during SP initialisation to indicate
failure. If this occurs during SP initialisation signal a failure,
otherwise respond wi

feat(spmc): add support for handling FFA_ERROR ABI

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

show more ...

feat(spmc): add support for FFA_MSG_WAIT

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 t

feat(spmc): add support for FFA_MSG_WAIT

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

show more ...

feat(spmc): add function to determine the return path from the SPMC

Use knowledge of the target partition ID and source security state
to determine which route should be used to exit the SPMC.

Ther

feat(spmc): add function to determine the return path from the SPMC

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

show more ...

feat(spmd): enable handling of FF-A SMCs with the SPMC at EL3

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 fr

feat(spmd): enable handling of FF-A SMCs with the SPMC at EL3

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

show more ...

feat(spmd): update SPMC init flow to use EL3 implementation

Allow the SPMD to initialise an SPMC implementation at EL3 directly
rather than at a lower EL.
This includes removing the requirement to p

feat(spmd): update SPMC init flow to use EL3 implementation

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

show more ...

feat(spmc): add FF-A secure partition manager core

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 enab

feat(spmc): add FF-A secure partition manager core

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

show more ...