fix(cpus): workaround for Cortex-X4 erratum 2701112

Cortex-X4 erratum 2701112 is cat B erratum that applies to
revision r0p0 and is fixed in r0p1. This erratum affects
system configurations that do

fix(cpus): workaround for Cortex-X4 erratum 2701112

Cortex-X4 erratum 2701112 is cat B erratum that applies to
revision r0p0 and is fixed in r0p1. This erratum affects
system configurations that do not use an Arm interconnect IP.

The workaround for this erratum is not implemented in EL3.
The erratum can be enabled/disabled on a platform level.
The flag is used when the errata ABI feature is enabled and can
assist the Kernel in the process of mitigation of the erratum.

SDEN Documentation:
https://developer.arm.com/documentation/SDEN2432808/latest

Change-Id: I8ede1ee75b0ea1658369a0646d8af91d44a8759b
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>

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Merge "feat(fvp): remove left-over RSS usage" into integration

feat(fvp): remove left-over RSS usage

Remove any residual RSS usage in the FVP platform, complementing the
changes made in commit dea307fd6cca2dad56867e757804224a8654bc38.

Signed-off-by: Manish V B

feat(fvp): remove left-over RSS usage

Remove any residual RSS usage in the FVP platform, complementing the
changes made in commit dea307fd6cca2dad56867e757804224a8654bc38.

Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
Change-Id: I9ced272503456361610ec0c7783d270349233926

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Merge changes from topic "od/sme" into integration

* changes:
fix(fvp): permit enabling SME for SPD=spmd
feat(spmd): pass SMCCCv1.3 SVE hint to lower EL

fix(fvp): permit enabling SME for SPD=spmd

Essentially revert [1] to permit specifying SME support along with
SPD=spmd on FVP platform.

[1] https://review.trustedfirmware.org/c/TF-A/trusted-firmwar

fix(fvp): permit enabling SME for SPD=spmd

Essentially revert [1] to permit specifying SME support along with
SPD=spmd on FVP platform.

[1] https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/20764

Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: Iab15d5a4c966b9f5b265ccde6711765e242abeaa

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Merge "feat(fvp): delegate FFH RAS handling to SP" into integration

feat(fvp): delegate FFH RAS handling to SP

This setup helps to mimic an end-to-end RAS handling flow inspired
by real world design with a dedicated RAS secure partition managed
by SPMC.

The detaile

feat(fvp): delegate FFH RAS handling to SP

This setup helps to mimic an end-to-end RAS handling flow inspired
by real world design with a dedicated RAS secure partition managed
by SPMC.

The detailed steps are documented as comments in the relevant source
files introduced in this patch.

Change-Id: I97737c66649f6e49840fa0bdf2e0af4fb6b08fc7
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>

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Merge "feat(cpufeat): add feature detection for FEAT_CSV2_3" into integration

feat(cpufeat): add feature detection for FEAT_CSV2_3

This feature provides support to context save the
SCXTNUM_ELx register. FEAT_CSV2_3 implies the implementation
of FEAT_CSV2_2. FEAT_CSV2_3 is sup

feat(cpufeat): add feature detection for FEAT_CSV2_3

This feature provides support to context save the
SCXTNUM_ELx register. FEAT_CSV2_3 implies the implementation
of FEAT_CSV2_2. FEAT_CSV2_3 is supported in AArch64 state only
and is an optional feature in Arm v8.0 implementations.

This patch adds feature detection for v8.9 feature FEAT_CSV2_3,
adds macros for ID_AA64PFR0_EL1.CSV2 bits [59:56] for detecting
FEAT_CSV2_3 and macro for ENABLE_FEAT_CSV2_3.

Change-Id: Ida9f31e832b5f11bd89eebd6cc9f10ddad755c14
Signed-off-by: Sona Mathew <sonarebecca.mathew@arm.com>

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Merge changes from topic "mb/deprecate-rss-for-fvp" into integration

* changes:
refactor(fvp): remove RSS usage
refactor(rss)!: remove PLAT_RSS_NOT_SUPPORTED build option

refactor(fvp): remove RSS usage

Removed RSS usage from the Base AEM FVP platform, as it wasn't
functional on this platform. The Base AEM FVP platform lacks
support for RSS.
Instead, the TC2 platform

refactor(fvp): remove RSS usage

Removed RSS usage from the Base AEM FVP platform, as it wasn't
functional on this platform. The Base AEM FVP platform lacks
support for RSS.
Instead, the TC2 platform with RSS is available for actual RSS
interface implementation and testing.

Change-Id: I8f68157319399ab526f9e851b26dba903db5c2e7
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

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Merge changes from topic "mp/exceptions" into integration

* changes:
docs(ras): update RAS documentation
docs(el3-runtime): update BL31 exception vector handling
fix(el3-runtime): restrict low

Merge changes from topic "mp/exceptions" into integration

* changes:
docs(ras): update RAS documentation
docs(el3-runtime): update BL31 exception vector handling
fix(el3-runtime): restrict lower el EA handlers in FFH mode
fix(ras): remove RAS_FFH_SUPPORT and introduce FFH_SUPPORT
fix(ras): restrict ENABLE_FEAT_RAS to have only two states
feat(ras): use FEAT_IESB for error synchronization
feat(el3-runtime): modify vector entry paths

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fix(ras): remove RAS_FFH_SUPPORT and introduce FFH_SUPPORT

This patch removes RAS_FFH_SUPPORT macro which is the combination of
ENABLE_FEAT_RAS and HANDLE_EA_EL3_FIRST_NS. Instead introduce an
inter

fix(ras): remove RAS_FFH_SUPPORT and introduce FFH_SUPPORT

This patch removes RAS_FFH_SUPPORT macro which is the combination of
ENABLE_FEAT_RAS and HANDLE_EA_EL3_FIRST_NS. Instead introduce an
internal macro FFH_SUPPORT which gets enabled when platforms wants
to enable lower EL EA handling at EL3. The internal macro FFH_SUPPORT
will be automatically enabled if HANDLE_EA_EL3_FIRST_NS is enabled.
FFH_SUPPORT along with ENABLE_FEAT_RAS will be used in source files
to provide equivalent check which was provided by RAS_FFH_SUPPORT
earlier. In generic code we needed a macro which could abstract both
HANDLE_EA_EL3_FIRST_NS and RAS_FFH_SUPPORT macros that had limitations.
Former was tied up with NS world only while the latter was tied to RAS
feature.

This is to allow Secure/Realm world to have their own FFH macros
in future.

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: Ie5692ccbf462f5dcc3f005a5beea5aa35124ac73

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fix(ras): restrict ENABLE_FEAT_RAS to have only two states

As part of migrating RAS extension to feature detection mechanism, the
macro ENABLE_FEAT_RAS was allowed to have dynamic detection (FEAT_ST

fix(ras): restrict ENABLE_FEAT_RAS to have only two states

As part of migrating RAS extension to feature detection mechanism, the
macro ENABLE_FEAT_RAS was allowed to have dynamic detection (FEAT_STATE
2). Considering this feature does impact execution of EL3 and we need
to know at compile time about the presence of this feature. Do not use
dynamic detection part of feature detection mechanism.

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I23858f641f81fbd81b6b17504eb4a2cc65c1a752

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Merge changes from topic "hm/mpam" into integration

* changes:
fix(build): convert tabs and ifdef comparisons
fix(build): disable ENABLE_FEAT_MPAM for Aarch32

Merge "refactor(fvp): do not use RSS platform token and attestation key APIs" into integration

fix(build): disable ENABLE_FEAT_MPAM for Aarch32

Disable FEAT_MPAM support for Aarch32 as it is not supported, following
[1]. ENABLE_FEAT_MPAM is set to 2 by default for Aarch64 in
arch_features.mk,

fix(build): disable ENABLE_FEAT_MPAM for Aarch32

Disable FEAT_MPAM support for Aarch32 as it is not supported, following
[1]. ENABLE_FEAT_MPAM is set to 2 by default for Aarch64 in
arch_features.mk, eliminating the need for duplication in the platform
makefile.

[1] https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/23710

Change-Id: I1c8b6844254e00e6372900f1c87f995f292ae65c
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>

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Merge changes from topic "gr/build_refactor" into integration

* changes:
build(refactor): avoid ifdef comparison
refactor(build): avoid using values for comparison
refactor(build): reorder arc

Merge changes from topic "gr/build_refactor" into integration

* changes:
build(refactor): avoid ifdef comparison
refactor(build): avoid using values for comparison
refactor(build): reorder arch features handling
build(n1sdp): add ARM_ARCH_MAJOR.ARM_ARCH_MINOR
refactor(build): reorder platform Makefile evaluation

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refactor(build): avoid using values for comparison

With changes to refactor to use first platform makefiles
then parse arch_features.mk file 'ENABLE_RME' will be initialised
only when we define duri

refactor(build): avoid using values for comparison

With changes to refactor to use first platform makefiles
then parse arch_features.mk file 'ENABLE_RME' will be initialised
only when we define during build or at arch_features.mk thus
making comparison of 'ENABLE_RME' to '0' incorrect.

So keep BRBE disabled when RME is enabled at main makefile level.

Change-Id: I7e3d99eb444678d63585bd5971ada627cfc4fcc9
Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>

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Merge "feat(cpus): add support for Travis CPU" into integration

Merge "feat(handoff): port BL31-BL33 interface to fw handoff framework" into integration

feat(handoff): port BL31-BL33 interface to fw handoff framework

The firmware handoff framework is a light weight mechanism for sharing
information between bootloader stages. Add support for this fra

feat(handoff): port BL31-BL33 interface to fw handoff framework

The firmware handoff framework is a light weight mechanism for sharing
information between bootloader stages. Add support for this framework at
the handoff boundary between runtime firmware BL31 and NS software on FVP.

Change-Id: Ib02e0e4c20a39e32e06da667caf2ce5a28de1e28
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>

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refactor(fvp): do not use RSS platform token and attestation key APIs

Since FVP does not support RSS, RSS APIs used to provide the hardcoded
platform token and attestation key. However, that seems t

refactor(fvp): do not use RSS platform token and attestation key APIs

Since FVP does not support RSS, RSS APIs used to provide the hardcoded
platform token and attestation key. However, that seems to be causing
un-necessary mandating of some PSA crypto definitions, that doesn't
seem appropriate.
Hence to retrieve platform token and realm attestation key, these
RSS APIs calls have been replaced with hardcoded information.

Change-Id: I5fd091025e3444a698b9d387763ce20db6b13ae1
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

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feat(cpus): add support for Travis CPU

Adding basic CPU library code to support Travis CPU

Change-Id: I3c85e9fab409325d213978888a8f6d6949291258
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.

feat(cpus): add support for Travis CPU

Adding basic CPU library code to support Travis CPU

Change-Id: I3c85e9fab409325d213978888a8f6d6949291258
Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>

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Merge "fix(mpam): refine MPAM initialization and enablement process" into integration