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This option makes it hard to optimize the memory definitions of all Arm
platforms because any change in the common defines must work in all of
them. The best thing to do is to remove it and move the definition to
each platform's header.

FVP, SGI and SGM were using the definitions in board_arm_def.h. The
definitions have been copied to each platform's platform_def.h. Juno
was already using the ones in platform_def.h, so there have been no
changes.

Change-Id: I9aecd11bbc72a3d0d7aad1ef9934d8df21dcfaf2
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I69e2720f534583a0f8d0e44f2e7b6f393f6fd093
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

Change-Id: I567a406edb090ae9d109382f6874846a79dd7473
Co-authored-by: Roberto Vargas <roberto.vargas@arm.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Change-Id: I2885b0d8cb9bb16da1fa96a30e46cccde434dc42
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

The code of LOAD_IMAGE_V2=0 has been removed.

Change-Id: Iea03e5bebb90c66889bdb23f85c07d0c9717fffe
Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

A compatibility script has been provided for about 2 years. Users should
have migrated to fiptool by now so remove the compat script.

Change-Id: I643e0c40a9e3fb428bad3be04a82cb431aad74dc
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>

Change-Id: Ib9a045200de4fcd00387b114cbbd006e46ad6a8b
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

Change-Id: Ia67a4786350c1c2ef55125cd6a318ae6d918c08e
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>

- Linaro binaries:    18.04
- mbed TLS library:   2.12.0
- FVP model versions: 11.4 build 37

This patch updates the user guide documentation to reflect these
changes to the dependencies.

Change-Id: I454782ca43a0db43aeeef2ab3622f4dea9dfec55
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

This function diplays the backtrace, the current EL and security state
to allow a post-processing tool to choose the right binary to interpret
the dump.

The output can be fed to GNU addr2line to resolve function names given
an ELF binary compiled with debug information. The "-i" flag is
recommended to improve display in case of inlined functions. The *.dump
files generated during the build process can also be used.

The function works in AArch64 and AArch32. In AArch32 it only works in
A32 mode (without T32 interworking), which is enforced in the Makefile.

Sample output of a backtrace at EL3:

    BACKTRACE: START: function_name
    0: EL3: 0x798
    1: EL3: 0x538
    2: EL3: 0x550
    3: EL3: 0x55c
    4: EL3: 0x568
    5: EL3: 0x5a8
    6: EL3: 0xf4
    BACKTRACE: END: function_name

In order to enable it the new option ENABLE_BACKTRACE must be set to 1.
This option is set to 1 by default only in AArch64 debug builds. As
usual, it can be overridden by the platform makefile and in the build
command line.

Change-Id: Icaff39b0e5188329728be2f3c72b868b2368e794
Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>

At the moment the AArch32 instruction set isn't specified in the command
line, which means that the compiler is free to choose the one it sees
fit. This decision may change between compiler versions, so it is better
to specify it manually.

The build option AARCH32_INSTRUCTION_SET has been introduced for this
reason. This option can be set to T32 or A32 to pass the correct flags
to the compiler.

The current behaviour is to default to T32 due to it's smaller size.

Change-Id: I02297eb1d9404b5868ff7c054fbff9b3cda7fdb6
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

This patch fixes a bug in the context management code that causes it to
ignore the HANDLE_EA_EL3_FIRST compile-time option and instead always
configure SCR_EL3 to force all external aborts to trap into EL3. The
code used #ifdef to read compile-time option declared with add_define in
the Makefile... however, those options are always defined, they're just
defined to either 0 or 1, so #if is the correct syntax to check for
them. Also update the documentation to match.

This bug has existed since the Nov 2017 commit 76454abf

 (AArch64:
Introduce External Abort handling), which changed the
HANDLE_EA_EL3_FIRST option to use add_define.

Change-Id: I7189f41d0daee78fa2fcf4066323e663e1e04d3d
Signed-off-by: Julius Werner <jwerner@chromium.org>

Memory Partitioning And Monitoring is an Armv8.4 feature that enables
various memory system components and resources to define partitions.
Software running at various ELs can then assign themselves to the
desired partition to control their performance aspects.

With this patch, when ENABLE_MPAM_FOR_LOWER_ELS is set to 1, EL3 allows
lower ELs to access their own MPAM registers without trapping to EL3.
This patch however doesn't make use of partitioning in EL3; platform
initialisation code should configure and use partitions in EL3 if
required.

Change-Id: I5a55b6771ccaa0c1cffc05543d2116b60cbbcdcd
Co-authored-by: James Morse <james.morse@arm.com>
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

Change-Id: Ice87052e41a24b0ede5610467e12941ae1d886e0
Signed-off-by: Sathees Balya <sathees.balya@arm.com>

Change-Id: Id2639218dfffec84d8b0fa295d7e896129d4fcd7
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

Change-Id: Ie65eb779b048940cf32ed5744ff40610b3c5499d
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

The user guide didn't contain any information about the
requirements of the clang version needed by TF, which is
at least 4.0.

Change-Id: I1ea120aca0fb2c0950fbeaf6978c654ec277afde
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>

Change-Id: Ia7800dae52f152b2c3a3b41f1078ab7499d2f4b6
Signed-off-by: Sathees Balya <sathees.balya@arm.com>

Having an active stack while enabling MMU has shown coherency problems.
This patch builds on top of translation library changes that introduces
MMU-enabling without using stacks.

Previously, with HW_ASSISTED_COHERENCY, data caches were disabled while
enabling MMU only because of active stack. Now that we can enable MMU
without using stack, we can enable both MMU and data caches at the same
time.

NOTE: Since this feature depends on using translation table library v2,
disallow using translation table library v1 with HW_ASSISTED_COHERENCY.

Fixes ARM-software/tf-issues#566

Change-Id: Ie55aba0c23ee9c5109eb3454cb8fa45d74f8bbb2
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

In the porting guide, there are blue boxes that describe the argument
types and the return type of each function.  A small typo caused some of
these boxes not being properly rendered.

In the user guide, small typos were fixed that caused random text being
unintentionally rendered as bold.  Also, a slight rewording was done in
the section describing the DYN_DISABLE_AUTH flag.

Change-Id: I57303ca609436a82162fa9b42c06b0d5a63da6df
Signed-off-by: John Tsichritzis <john.tsichritzis@arm.com>

To build with the new release, we pick couple of more files from mbedTLS
library.

Change-Id: I77dfe5723284cb26d4e5c717fb0e6f6dd803cb6b
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

Changed the ordering of the log levels in the documentation to
mate the code

Change-Id: Ief1930b73d833fdf675b039c98046591c0c264c1
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>

The patch changes the layout of BL images in memory to enable
more efficient use of available space. Previously BL31 was loaded
with the expectation that BL2 memory would be reclaimed by BL32
loaded in SRAM. But with increasing memory requirements in the
firmware, we can no longer fit BL32 in SRAM anymore which means the
BL2 memory is not reclaimed by any runtime image. Positioning BL2
below BL1-RW and above BL31 means that the BL31 NOBITS can be
overlaid on BL2 and BL1-RW.

This patch also propogates the same memory layout to BL32 for AArch32
mode. The reset addresses for the following configurations are also
changed :
   * When RESET_TO_SP_MIN=1 for BL32 in AArch32 mode
   * When BL2_AT_EL3=1 for BL2

The restriction on BL31 to be only in DRAM when SPM is enabled
is now removed with this change. The update to the firmware design
guide for the BL memory layout is done in the following patch.

Change-Id: Icca438e257abe3e4f5a8215f945b9c3f9fbf29c9
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

From TF-A v1.5, FVP supports loading the kernel FDT through
firmware as part of dynamic configuration feature. This means
that the FDT no longer needs to be loaded via Model parameters.
This patch updates the user guide to reflect the same.

Change-Id: I79833beeaae44a1564f6512c3a473625e5959f65
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

This patch allows platforms to dynamically disable authentication of
images during cold boot. This capability is controlled via the
DYN_DISABLE_AUTH build flag and is only meant for development
purposes.

Change-Id: Ia3df8f898824319bb76d5cc855b5ad6c3d227260
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

The instructions to boot the bootwrapped kernel were outdated.

Also, the bootwrapped kernel boot flow isn't really useful. It was meant
to be a replacement for the Trusted Firmware-A, not to be used as the next
step during boot.

The instructions have been removed in favour of the new build option
ARM_LINUX_KERNEL_AS_BL33. This new system directly boots the Linux
kernel from BL31, and requires RESET_TO_BL31 to be 1. Also, the kernel
has to be preloaded in memory, so PRELOADED_BL33_BASE has to be set to its
address. This way, the runtime services of the Trusted Firmware-A are
available for the kernel in the least possible amount of time.

This new system requires the DTB to be patched so that the kernel knows
where the ramdisk is. A short script to add this information to the DTB
has been added to the User Guide. The information related to it can be
found in the following file in the Linux kernel tree:
``Documentation/devicetree/bindings/chosen.txt``

Change-Id: Ide135580959e09f6aa8e4425f37ea55d97439178
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Normally, BL33 needs to contain a boot loader like U-Boot or UEFI that
eventually gives control to the OS. However, in some cases, this boot
sequence may be too slow. For example, when doing tests in a
cycle-accurate emulator, the user may only be interested in the
interaction between the Trusted Firmware and the OS, not in the boot
process itself.

The new option ARM_LINUX_KERNEL_AS_BL33 allows BL33 to contain the Linux
kernel image by changing the value of registers x0-x3 to the values
expected by the kernel. This option requires the device tree blob (DTB)
to be present in memory. Its address must be specified in the newly
introduced ARM_PRELOADED_DTB_BASE build option. For now, it only supports
AArch64 kernels.

This option is only available when RESET_TO_BL31=1. For this reason
the BL33 binary must be preloaded in memory and PRELOADED_BL33_BASE must
be used.

For example, if the kernel is loaded at 0x80080000 and the DTB is loaded
at address 0x82000000, the firmware could be built like this:

    CROSS_COMPILE=aarch64-linux-gnu-  \
    make PLAT=fvp DEBUG=1             \
    RESET_TO_BL31=1                   \
    ARM_LINUX_KERNEL_AS_BL33=1        \
    PRELOADED_BL33_BASE=0x80080000    \
    ARM_PRELOADED_DTB_BASE=0x82000000 \
    all fip

Change-Id: If9dc847c65ae2d0c27b51f0fd44fc06b28497db9
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

The ARMv8.4 RAS extensions introduce architectural support for software
to inject faults into the system in order to test fault-handling
software. This patch introduces the build option FAULT_HANDLING_SUPPORT
to allow for lower ELs to use registers in the Standard Error Record to
inject fault. The build option RAS_EXTENSIONS must also be enabled along
with fault injection.

This feature is intended for testing purposes only, and is advisable to
keep disabled for production images.

Change-Id: I6f7a4454b15aec098f9505a10eb188c2f928f7ea
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

RAS extensions are mandatory for ARMv8.2 CPUs, but are also optional
extensions to base ARMv8.0 architecture.

This patch adds build system support to enable RAS features in ARM
Trusted Firmware. A boolean build option RAS_EXTENSION is introduced for
this.

With RAS_EXTENSION, an Exception Synchronization Barrier (ESB) is
inserted at all EL3 vector entry and exit. ESBs will synchronize pending
external aborts before entering EL3, and therefore will contain and
attribute errors to lower EL execution. Any errors thus synchronized are
detected via. DISR_EL1 register.

When RAS_EXTENSION is set to 1, HANDLE_EL3_EA_FIRST must also be set to 1.

Change-Id: I38a19d84014d4d8af688bd81d61ba582c039383a
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

Due to differences in the bitfields of the SMC IDs, it is not possible
to support SMCCC 1.X and 2.0 at the same time.

The behaviour of `SMCCC_MAJOR_VERSION` has changed. Now, it is a build
option that specifies the major version of the SMCCC that the Trusted
Firmware supports. The only two allowed values are 1 and 2, and it
defaults to 1. The value of `SMCCC_MINOR_VERSION` is derived from it.

Note: Support for SMCCC v2.0 is an experimental feature to enable
prototyping of secure partition specifications. Support for this
convention is disabled by default and could be removed without notice.

Change-Id: I88abf9ccf08e9c66a13ce55c890edea54d9f16a7
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Add TZMP1 support on Juno and increase the BL2 size accordingly due to the
extra data structures to describe the TZC regions and the additional code.
Signed-off-by: Summer Qin <summer.qin@arm.com>

In some use-cases BL2 will be stored in eXecute In Place (XIP) memory,
like BL1. In these use-cases, it is necessary to initialize the RW sections
in RAM, while leaving the RO sections in place. This patch enable this
use-case with a new build option, BL2_IN_XIP_MEM. For now, this option
is only supported when BL2_AT_EL3 is 1.
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>

Following Out of Box testing for v1.5 release:

    Update host OS version to Ubuntu 16.04
    Clarify configuration files needed for checkpatch
    Add note on using Linaro precompiled binaries

Change-Id: Ia4ae61e01128ddff1a288972ddf84b79370fa52c
Signed-off-by: Joel Hutton <Joel.Hutton@Arm.com>

The CI has been updated to run tests against the AEMv8-A RevC
model, FVP_Base_RevC-2xAEMv8A, which is available from the Fast
Model releases on Connected Community [1].

Additionally, the CI now also includes the Cortex-A55x4, Cortex-A75x4
and Cortex-A55x4-A75x4 Base models.

[1] https://developer.arm.com/products/system-design/fixed-virtual-platforms



Change-Id: I57806f3b2a8121211490a7aa0089dcae566d8635
Signed-off-by: David Cunado <david.cunado@arm.com>

Update Arm Trusted Firmware references in the upstream documents to
Trusted Firmware-A (TF-A). This is for consistency with and
disambiguation from Trusted Firmware-M (TF-M).

Also update other Arm trademarks, e.g. ARM->Arm, ARMv8->Armv8-A.

Change-Id: I8bb0e18af29c6744eeea2dc6c08f2c10b20ede22
Signed-off-by: Dan Handley <dan.handley@arm.com>
Signed-off-by: David Cunado <david.cunado@arm.com>

This patch updates the `firmware-design.rst` document for
changes in ARM-TF for supporting dynamic configuration features
as presented in `Secure Firmware BoF SFO'17`[1].

The patch also updates the user-guide for 2 build options for FVP
pertaining to dynamic config.

[1] https://www.slideshare.net/linaroorg/bof-device-tree-and-secure-firmware-bof-sfo17310



Change-Id: Ic099cf41e7f1a98718c39854e6286d884011d445
Signed-off-by: Soby Mathew <soby.mathew@arm.com>

FVPs that model DynamIQ configuration implements all CPUs in a single
cluster. I.e., such models have a single cluster with more than 4 CPUs.
This differs from existing default build configuration for FVP where up
to 4 CPUs are assumed per cluster.

To allow building for DynamIQ configuration, promote the macro
FVP_MAX_CPUS_PER_CLUSTER as a build option to have it set from the build
command line. The value of the build option defaults to 4.

Change-Id: Idc3853bc95f680869b434b011c2dbd733e40c6ce
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

The Arm Trusted Firmware is built by default for ARMv8-A version 8.0.
However, the Foundation FVP runs by default in the highest version of
the architecture it supports. This causes problems when trying to run
the Arm Trusted Firmware on it.

This patch adds a note to the User Guide about this problem.

Change-Id: I0220fe1a9c66c2292149ad4a7ffe5e27ba08ab28
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

At present, the build option TSP_NS_INTR_ASYNC_PREEMPT controls how
Non-secure interrupt affects TSPs execution. When TSP is executing:

  1. When TSP_NS_INTR_ASYNC_PREEMPT=0, Non-secure interrupts are received
     at the TSP's exception vector, and TSP voluntarily preempts itself.

  2. When TSP_NS_INTR_ASYNC_PREEMPT=1, Non-secure interrupts causes a
     trap to EL3, which preempts TSP execution.

When EL3 exception handling is in place (i.e.,
EL3_EXCEPTION_HANDLING=1), FIQs are always trapped to EL3. On a system
with GICv3, pending NS interrupts while TSP is executing will be
signalled as FIQ (which traps to EL3). This situation necessitates the
same treatment applied to case (2) above.

Therefore, when EL3 exception handling is in place, additionally
require that TSP_NS_INTR_ASYNC_PREEMPT is set to one 1.

Strictly speaking, this is not required on a system with GICv2, but the
same model is uniformly followed regardless, for simplicity.

Relevant documentation updated.

Change-Id: I928a8ed081fb0ac96e8b1dfe9375c98384da1ccd
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>

Update firmware-design.rst, porting-guide.rst and user-guide.rst
with the information about BL2 at EL3. Firmware-design.rst is
also update to explain how to test this feauture with FVP.

Change-Id: I86d64bc64594e13eb041cea9cefa3f7f3fa745bd
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>