History log of /rk3399_ARM-atf/docs/components/rmm-el3-comms-spec.rst (Results 1 – 25 of 34)
Revision Date Author Comments
# 24804eeb 15-Sep-2025 Soby Mathew <soby.mathew@arm.com>

Merge changes I32c5be5d,I15a652a0 into integration

* changes:
fix(qemu): add reason parameter to MEC update
refactor(rmmd): modify MEC update call to meet FIRME


# 00e62ff9 03-Sep-2025 Juan Pablo Conde <juanpablo.conde@arm.com>

refactor(rmmd): modify MEC update call to meet FIRME

Previous version of MEC refresh call was not compliant with FIRME [1].
This patch modifies the call so it is compliant with the specification.

[

refactor(rmmd): modify MEC update call to meet FIRME

Previous version of MEC refresh call was not compliant with FIRME [1].
This patch modifies the call so it is compliant with the specification.

[1] https://developer.arm.com/documentation/den0149/1-0alp0/

Change-Id: I15a652a021561edca16e79d127e6f08975cf1361
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>

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# aed7dc81 08-Sep-2025 Soby Mathew <soby.mathew@arm.com>

Merge changes from topic "rmm-lfa" into integration

* changes:
feat(rmmd): add RMM_RESERVE_MEMORY SMC handler
feat(rmmd): add per-CPU activation token


# 745c129a 09-Jul-2024 Andre Przywara <andre.przywara@arm.com>

feat(rmmd): add RMM_RESERVE_MEMORY SMC handler

At the moment any memory required by an R-EL2 manager (RMM) needs to
be known at compile time: that sets the size of the .data and .bss
segments. Some

feat(rmmd): add RMM_RESERVE_MEMORY SMC handler

At the moment any memory required by an R-EL2 manager (RMM) needs to
be known at compile time: that sets the size of the .data and .bss
segments. Some resources depend on the particular machine this will be
running on, the prime example is TF-RMM's granule array, which needs to
know the maximum memory supported beforehand. Other data structures
might depend on the number of CPU cores.

To provide more flexibility, but keep the memory footprint as small as
possible, let's introduce some memory reservation SMC. Any RMM
implementation can ask EL3 for some memory, and would get the physical
address of a usable chunk of memory back. This must happen at RMM boot
time, so before the RMM concluded the boot phase with the
RMM_BOOT_COMPLETE SMC call. Also there is no provision to free memory
again, this would not be needed for the use case of sizing platform
resources, and avoids the complexity of a full-fledged memory allocator.

Add the new RMM_RESERVE_MEMORY command to the implementation defined
RMM-EL3 SMC interface, both in code and documentation. The actual memory
reservation is made a platform implementation, but a simple
implementation is provided, which is used for the FVP platform already:
it will just pick the next matching chunk of memory from the top end of
the RMM carveout. This way the memory reservation will grow down from
the end of the carveout, in a stack-like fashion, until it reaches the
end of the RMM payload, located at the beginning of the carveout. Since
secondary cores might also reserve memory at boot time, there is a
spinlock to protect the simple allocation algorithm.
Other platforms can choose to provide a more sophisticated reservation
algorithm, for instance one taking NUMA locality into account.

This patch just provides the call, at this point there is no obligation
to use the feature, although future TF-RMM versions would rely on it.

Change-Id: I096ac8870ee38f44e18850779fcae829a43a8fd1
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

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# 61cdb454 25-Apr-2025 Soby Mathew <soby.mathew@arm.com>

Merge "docs(rmmd): document the EL3-RMM IDE KM Interface" into integration


# c0fa892a 22-Apr-2025 Sona Mathew <SonaRebecca.Mathew@arm.com>

docs(rmmd): document the EL3-RMM IDE KM Interface

This patch updates the documentation for the EL3-RMM IDE KM interface,
addressing errors found in the previous version and fixed formatting
issues a

docs(rmmd): document the EL3-RMM IDE KM Interface

This patch updates the documentation for the EL3-RMM IDE KM interface,
addressing errors found in the previous version and fixed formatting
issues and added missing details.

Change-Id: I84ff734d3de755fa793620e9b1446cf9b75763b0
Signed-off-by: Sona Mathew <SonaRebecca.Mathew@arm.com>

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# ec56d595 15-Apr-2025 Soby Mathew <soby.mathew@arm.com>

Merge changes from topic "sm/rpkm" into integration

* changes:
docs(rmmd): document the EL3-RMM IDE KM Interface
feat(trp): test el3-rmm ide km interface
feat(rmmd): el3-rmm ide key management

Merge changes from topic "sm/rpkm" into integration

* changes:
docs(rmmd): document the EL3-RMM IDE KM Interface
feat(trp): test el3-rmm ide km interface
feat(rmmd): el3-rmm ide key management interface

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# 0616bf03 02-Apr-2025 Sona Mathew <sonarebecca.mathew@arm.com>

docs(rmmd): document the EL3-RMM IDE KM Interface

This patch documents the EL3-RMM IDE KM interface.

Four IDE Key management smc calls have been added:
- RMM_IDE_KEY_PROG()
- RMM_IDE_KEY_SET_GO()

docs(rmmd): document the EL3-RMM IDE KM Interface

This patch documents the EL3-RMM IDE KM interface.

Four IDE Key management smc calls have been added:
- RMM_IDE_KEY_PROG()
- RMM_IDE_KEY_SET_GO()
- RMM_IDE_KEY_SET_STOP()
- RMM_IDE_KM_PULL_RESPONSE()

Change-Id: Iea357ec16a2bee88573266c7a5c9fb36025f15f1
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>

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# 90f9c9be 25-Mar-2025 Soby Mathew <soby.mathew@arm.com>

Merge "feat(rme): add SMMU and PCIe information to Boot manifest" into integration


# 90552c61 30-Jan-2025 AlexeiFedorov <Alexei.Fedorov@arm.com>

feat(rme): add SMMU and PCIe information to Boot manifest

- Define information structures for SMMU, root complex,
root port and BDF mappings.
- Add entries for SMMU and PCIe root complexes to Boot

feat(rme): add SMMU and PCIe information to Boot manifest

- Define information structures for SMMU, root complex,
root port and BDF mappings.
- Add entries for SMMU and PCIe root complexes to Boot manifest.
- Update RMMD_MANIFEST_VERSION_MINOR from 4 to 5.

Change-Id: I0a76dc18edbaaff40116f376aeb56c750d57c7c1
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>

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# 48488245 20-Mar-2025 Soby Mathew <soby.mathew@arm.com>

Merge changes from topic "mec" into integration

* changes:
feat(qemu): add plat_rmmd_mecid_key_update()
feat(rmmd): add RMM_MECID_KEY_UPDATE call


# f801fdc2 22-Apr-2024 Tushar Khandelwal <tushar.khandelwal@arm.com>

feat(rmmd): add RMM_MECID_KEY_UPDATE call

With this addition, TF-A now has an SMC call to handle the
update of MEC keys associated to MECIDs.

The behavior of this newly added call is empty for now

feat(rmmd): add RMM_MECID_KEY_UPDATE call

With this addition, TF-A now has an SMC call to handle the
update of MEC keys associated to MECIDs.

The behavior of this newly added call is empty for now until an
implementation for the MPE (Memory Protection Engine) driver is
available. Only parameter sanitization has been implemented.

Signed-off-by: Tushar Khandelwal <tushar.khandelwal@arm.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>
Change-Id: I2a969310b47e8c6da1817a79be0cd56158c6efc3

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# e1362231 12-Feb-2025 Soby Mathew <soby.mathew@arm.com>

Merge changes from topic "memory_bank" into integration

* changes:
fix(qemu): statically allocate bitlocks array
feat(qemu): update for renamed struct memory_bank
feat(fvp): increase GPT PPS t

Merge changes from topic "memory_bank" into integration

* changes:
fix(qemu): statically allocate bitlocks array
feat(qemu): update for renamed struct memory_bank
feat(fvp): increase GPT PPS to 1TB
feat(gpt): statically allocate bitlocks array
chore(gpt): define PPS in platform header files
feat(fvp): allocate L0 GPT at the top of SRAM
feat(fvp): change size of PCIe memory region 2
feat(rmm): add PCIe IO info to Boot manifest
feat(fvp): define single Root region

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# bef44f60 14-Oct-2024 AlexeiFedorov <Alexei.Fedorov@arm.com>

feat(rmm): add PCIe IO info to Boot manifest

- Add PCIe and SMMUv3 related information to DTS for
configurations with ENABLE_RME=1.
- Add entries for PCIe IO memory regions to Boot manifest
- Upda

feat(rmm): add PCIe IO info to Boot manifest

- Add PCIe and SMMUv3 related information to DTS for
configurations with ENABLE_RME=1.
- Add entries for PCIe IO memory regions to Boot manifest
- Update RMMD_MANIFEST_VERSION_MINOR from 3 to 4.
- Read PCIe related information from DTB and write it to
Boot manifest.
- Rename structures that used to describe DRAM layout
and now describe both DRAM and PCIe IO memory regions:
- ns_dram_bank -> memory_bank
- ns_dram_info -> memory_info.

Change-Id: Ib75d1af86076f724f5c330074e231f1c2ba8e21d
Signed-off-by: AlexeiFedorov <Alexei.Fedorov@arm.com>

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# 88ed66bd 06-Nov-2024 Soby Mathew <soby.mathew@arm.com>

Merge "docs: el3 token signing" into integration


# b226357b 14-Oct-2024 Raghu Krishnamurthy <raghupathyk@nvidia.com>

docs: el3 token signing

Add documentation for the feature where EL3 can be used to sign realm
attestation token requests using RMM_EL3_TOKEN_SIGN command.
This patch also adds documentation for the

docs: el3 token signing

Add documentation for the feature where EL3 can be used to sign realm
attestation token requests using RMM_EL3_TOKEN_SIGN command.
This patch also adds documentation for the RMM_EL3_FEATURES features
command that can be used to discover support for features such as
RMM_EL3_TOKEN_SIGN.

Change-Id: Iab5a157761ed17931210c3702f813198fc9c4b3a
Signed-off-by: Raghu Krishnamurthy <raghupathyk@nvidia.com>

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# 051c7ad8 13-Sep-2024 Soby Mathew <soby.mathew@arm.com>

Merge "refactor(rmmd): plat token requests in pieces" into integration


# 42cf6026 10-Jul-2024 Juan Pablo Conde <juanpablo.conde@arm.com>

refactor(rmmd): plat token requests in pieces

Until now, the attestation token size was limited by the size of the
shared buffer between RMM and TF-A. With this change, RMM can now
request the token

refactor(rmmd): plat token requests in pieces

Until now, the attestation token size was limited by the size of the
shared buffer between RMM and TF-A. With this change, RMM can now
request the token in pieces, so they fit in the shared buffer. A new
output parameter was added to the SMC call, which will return (along
with the size of bytes copied into the buffer) the number of bytes
of the token that remain to be retrieved.

TF-A will keep an offset variable that will indicate the position in
the token where the next call will retrieve bytes from. This offset
will be increased on every call by adding the number number of bytes
copied. If the received hash size is not 0, TF-A will reset the
offset to 0 and copy from that position on.

The SMC call will now return at most the size of the shared buffer
in bytes on every call. Therefore, from now on, multiple SMC calls
may be needed to be issued if the token size exceeds the shared
buffer size.

Change-Id: I591f7013d06f64e98afaf9535dbea6f815799723
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>

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# 0f4811b4 02-Apr-2024 Soby Mathew <soby.mathew@arm.com>

Merge changes I3a4f9a4f,Iedc4e640 into integration

* changes:
docs(rmm): document console struct in rmm boot manifest
feat(rme): pass console info via RMM-EL3 ifc


# 88f7c87b 28-Mar-2024 Harry Moulton <harry.moulton@arm.com>

docs(rmm): document console struct in rmm boot manifest

This change adds documentation for the console_list and
console_info structures added to the RMM Boot Manifest v0.3.

Signed-off-by: Harry Mou

docs(rmm): document console struct in rmm boot manifest

This change adds documentation for the console_list and
console_info structures added to the RMM Boot Manifest v0.3.

Signed-off-by: Harry Moulton <harry.moulton@arm.com>
Change-Id: I3a4f9a4f1d34259bc69c0ab497cbfbc268d7a994

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# 4af75cc6 30-Nov-2023 Soby Mathew <soby.mathew@arm.com>

Merge "docs: fix errata in RMM-EL3 Communication Interface documentation" into integration


# ca99680c 30-Nov-2023 Javier Almansa Sobrino <javier.almansasobrino@arm.com>

docs: fix errata in RMM-EL3 Communication Interface documentation

Signed-off-by: Javier Almansa Sobrino <javier.almansasobrino@arm.com>
Change-Id: I6d6b7ff084cc731470e873cfdf37beeec0d3635a


# b709f12d 24-May-2023 Soby Mathew <soby.mathew@arm.com>

Merge "feat(rme): save PAuth context when RME is enabled" into integration


# 13cc1aa7 15-May-2023 Shruti Gupta <shruti.gupta@arm.com>

feat(rme): save PAuth context when RME is enabled

This patch enables CTX_INCLUDE_PAUTH_REGS for RME builds.
The RMM-EL3 specification is also updated to reflect the changes
and also version of the s

feat(rme): save PAuth context when RME is enabled

This patch enables CTX_INCLUDE_PAUTH_REGS for RME builds.
The RMM-EL3 specification is also updated to reflect the changes
and also version of the same is bumped from 0.1 to 0.2.

Signed-off-by: Shruti Gupta <shruti.gupta@arm.com>
Change-Id: I2e96a592d2b75abaee24294240c1727c5ceba420

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# e3df3ffa 01-Feb-2023 Soby Mathew <soby.mathew@arm.com>

Merge changes I1b092bc1,Ifc2461b4,I5176caa5 into integration

* changes:
docs(rme): update RMM-EL3 Boot Manifest structure description
feat(rme): read DRAM information from FVP DTB
feat(rme): s

Merge changes I1b092bc1,Ifc2461b4,I5176caa5 into integration

* changes:
docs(rme): update RMM-EL3 Boot Manifest structure description
feat(rme): read DRAM information from FVP DTB
feat(rme): set DRAM information in Boot Manifest platform data

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