davidcunado-arm [Tue, 6 Feb 2018 05:12:28 +0000 (05:12 +0000)]
Merge pull request #1224 from masahir0y/gzip
Support GZIP-compressed images for faster loading and verification
davidcunado-arm [Fri, 2 Feb 2018 22:59:16 +0000 (22:59 +0000)]
Merge pull request #1249 from masahir0y/uniphier
uniphier: fix and improve memory layout
davidcunado-arm [Fri, 2 Feb 2018 11:14:17 +0000 (11:14 +0000)]
Merge pull request #1253 from dp-arm/dp/amu32
AMUv1 support for AArch32
Masahiro Yamada [Fri, 2 Feb 2018 06:55:13 +0000 (15:55 +0900)]
uniphier: add ULL to physical address literals
Looks like this is requirement in the pre-merge static analysis.
misra_violation: [Required] MISRA C-2012 Rule 7.2 violation:
Unsigned constants must be declared with U or u suffix.
Adding ULL as requested. I used ULL() macros for BL*_{BASE,LIMIT}
because they are referenced from linker scripts.
Requested-by: David Cunado <david.cunado@arm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Tue, 30 Jan 2018 10:30:39 +0000 (19:30 +0900)]
uniphier: allocate xlat region of on-chip SRAM only when needed
Currently, the xlat region of the on-chip SRAM is always allocated
for all BL images.
The access to the on-chip SRAM is necessary for loading images from
a USB memory device (i.e. when updating firmware), so unneeded for
the usual boot procedure.
To avoid this waste, allocate the xlat region dynamically only for
BL2, and only when it is necessary.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Tue, 30 Jan 2018 09:49:37 +0000 (18:49 +0900)]
uniphier: get back original BL31/32 location used before BL2-AT-EL3
Commit
247fc0435191 ("uniphier: switch to BL2-AT-EL3 and remove BL1
support") accidentally changed the location of BL31 and BL32. The
new memory map overlaps with the audio DSP images, also gives impact
to OP-TEE. They are both out of control of ARM Trusted Firmware, so
not easy to change. This commit restores the image layout that was
originally used prior to the BL2-AT-EL3 migration.
Reported-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
davidcunado-arm [Thu, 1 Feb 2018 23:29:34 +0000 (23:29 +0000)]
Merge pull request #1247 from rockchip-linux/rk3399/fixes-memory-corruptions
rockchip/rk3399: Fix memory corruptions or illegal memory access
davidcunado-arm [Thu, 1 Feb 2018 18:15:53 +0000 (18:15 +0000)]
Merge pull request #1245 from antonio-nino-diaz-arm/an/checkpatch
Analyze coding style of patches individually
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
uniphier: support GZIP-compressed images
Allow to handle GZIP-compressed images by giving FIP_GZIP=1 from the
command line.
- Images are GZIP-compressed, then packed into FIP. If Trusted Board
Boot is enabled, certificates are generated based on the compressed
images.
- GZIP decompressor is linked into BL2 to decompress images at
run-time.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Thu, 1 Feb 2018 12:37:40 +0000 (21:37 +0900)]
uniphier: add a helper to get image_info
In the next commit, I will have more usecases to get struct image_info
from image ID. It is better to make a helper function at a different
layer. I do not need the current uniphier_image_descs_fixup() since
the code is small enough to be squashed into the caller side.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
image_decompress: add APIs for decompressing images
These APIs are used by platforms that need to decompress images.
image_decompress_init():
This registers a temporary buffer and a decompressor callback.
This should be called from platform init code.
image_decompress_prepare():
This should be called before each compressed image is loaded. The
best location to call this will be bl*_plat_handle_pre_image_load().
image_decompress():
This should be called after each compressed image is loaded. The
best location to call this will be bl*_plat_handle_post_image_load().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Thu, 1 Feb 2018 07:46:18 +0000 (16:46 +0900)]
bl1: add bl1_plat_handle_{pre,post}_image_load()
Just like bl2_, add pre/post image load handlers for BL1. No argument
is needed since BL2 is the only image loaded by BL1.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Thu, 1 Feb 2018 07:45:51 +0000 (16:45 +0900)]
bl2: add bl2_plat_handle_pre_image_load()
There are cases where we need to manipulate image information before
the load. For example, for decompressing data, we cannot load the
compressed images to their final destination. Instead, we need to
load them to the temporary buffer for the decompressor.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Thu, 1 Feb 2018 09:42:24 +0000 (18:42 +0900)]
plat/common: move arch-agnostic fallback functions to C file
When we add a new callback, we need to duplicate fallbacks among
plat/common/{aarch32,aarch64}/platform_helpers.S This is tedious.
I created a new C file, then moved 3 functions:
plat_error_handler
bl2_plat_preload_setup
plat_try_next_boot_source
They are called from C, so I do not see a good reason to implement
them in assembly.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
zlib: add gunzip() support
This commit adds some more files to use zlib from TF.
To use zlib, ->zalloc and ->zfree hooks are needed. The implementation
depends on the system. For user-space, the libc provides malloc() and
friends. Unfortunately, ARM Trusted Firmware does not provide malloc()
or any concept of dynamic memory allocation.
I implemented very simple calloc() and free() for this. Stupidly,
zfree() never frees memory, but it works enough for this.
The purpose of using zlib is to implement gunzip() - this function
takes compressed data from in_buf, then dumps the decompressed data
to oub_buf. The work_buf is used for memory allocation during the
decompress. Upon exit, it updates in_buf and out_buf. If successful,
in_buf points to the end of input data, out_buf to the end of the
decompressed data.
To use this feature, you need to do:
- include lib/zlib/zlib.mk from your platform.mk
- add $(ZLIB_SOURCES) to your BL*_SOURCES
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
zlib: import zlib files from zlib 1.2.11
Import the following files from zlib 1.2.11:
adler32.c
crc32.c
crc32.h
inffast.c
inffast.h
inffixed.h
inflate.c
inflate.h
inftrees.c
inftrees.h
zconf.h
zlib.h
zutil.c
zutil.h
The original tarball is available from http://zlib.net/
The zlib is free software, distributed under the zlib license. The
license text is included in the "zlib.h" file. It should be compatible
with BSD-3-Clause.
The zlib license is included in the SPDX license list available at
https://spdx.org/licenses/, but I did not add the SPDX license tag to
the imported files above, to keep them as they are in the upstream
project. This seems the general policy for ARM Trusted Firmware, as
SPDX License Identifier was not added to files imported from FreeBSD.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: add GZIP compression filter
One typical usage of the pre-tool image filter is data compression,
and GZIP is one of the most commonly used compression methods.
I guess this is generic enough to be put in the common script instead
of platform.mk.
If you want to use this, you can add something like follows to your
platform.mk:
BL32_PRE_TOOL_FILTER := GZIP
BL33_PRE_TOOL_FILTER := GZIP
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Thu, 1 Feb 2018 07:31:09 +0000 (16:31 +0900)]
Build: support pre-tool image processing
There are cases where we want to process images before they are
passed to cert_create / fiptool.
My main motivation is data compression. By compressing images, we can
save data storage, and possibly speed up loading images. The image
verification will also get faster because certificates are generated
based on compressed images.
Other image transformation filters (for ex. encryption), and their
combinations would be possible. So, our build system should support
transformation filters in a generic manner.
The choice of applied filters is up to platforms (so specified in
platform.mk)
To define a new filter, <FILTER_NAME>_RULE and <FILTER_NAME>_SUFFIX
are needed.
For example, the GZIP compression filter can be implemented as follows:
------------------------>8------------------------
define GZIP_RULE
$(1): $(2)
@echo " GZIP $$@"
$(Q)gzip -n -f -9 $$< --stdout > $$@
endef
GZIP_SUFFIX := .gz
------------------------>8------------------------
The _RULE defines how to create the target $(1) from the source $(2).
The _SUFFIX defines the extension appended to the processed image path.
The suffix is not so important because the file name information is not
propagated to FIP, but adding a sensible suffix will be good to classify
the data file.
Platforms can specify which filter is applied to which BL image, like
this:
------------------------>8------------------------
BL32_PRE_TOOL_FILTER := GZIP
BL33_PRE_TOOL_FILTER := GZIP
------------------------>8------------------------
<IMAGE_NAME>_PRE_TOOL_FILTER specifies per-image filter. With this,
different images can be transformed differently. For the case above,
only BL32 and BL33 are GZIP-compressed. Nothing is done for other
images.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: change the first parameter of TOOL_ADD_IMG to lowercase
In the next commit, I need the image name in lowercase because
output files are generally named in lowercase.
Unfortunately, TOOL_ADD_IMG takes the first argument in uppercase
since we generally use uppercase Make variables.
make_helpers/build_macros.mk provides 'uppercase' macro to convert
a string into uppercase, but 'lowercase' does not exist. We can
implement it if we like, but it would be more straightforward to
change the argument of TOOL_ADD_IMG.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: make tools depend on $(BIN) instead of PHONY target
The PHONY target "bl*" generate $(BIN) and $(DUMP), but host tools
(fiptool, cert_create) only need $(BIN).
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: remove third argument of CERT_ADD_CMD_OPT
The third argument was given "true" by images, but it was moved
to TOOL_ADD_PAYLOAD. No more caller of CERT_ADD_CMD_OPT uses this.
So, the third argument is always empty. Remove it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: rename FIP_ADD_IMG to TOOL_ADD_IMG
Now FIP_ADD_IMG takes care of both fiptool and cert_create
symmetrically. Rename it so that it matches the behavior.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: rename FIP_ADD_PAYLOAD to TOOL_ADD_PAYLOAD
Now FIP_ADD_PAYLOAD takes care of both fiptool and cert_create
symmetrically. Rename it so that it matches the behavior.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: move cert_create arguments and dependency to FIP_ADD_PAYLOAD
The fiptool and cert_create use the same command options for images.
It is pretty easy to handle both in the same, symmetrical way.
Move CRT_ARGS and CRT_DEPS to FIP_ADD_PAYLOAD. This refactoring makes
sense because FIP_ADD_PAYLOAD is called from MAKE_BL (when building
images from source), and from FIP_ADD_IMG (when including external
images). (FIP_ADD_PAYLOAD will be renamed later on since it now
caters to both fiptool and cert_create).
We can delete CERT_ADD_CMD_OPT for images in tbbr.mk. It still
needs to call CERT_ADD_CMD_OPT directly for certificates.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: rip off unneeded $(eval ...) from buid macros
The callers of these macros are supposed to use $(eval $(call, ...)).
The $(eval ...) on the callee side is unneeded.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: merge build macros between FIP_ and FWU_FIP_
The build system supports generating two FIP images, fip and fwu_fip.
Accordingly, we have similar build macros.
FIP_ADD_PAYLOAD <--> FWU_FIP_ADD_PAYLOAD
CERT_ADD_CMD_OPT <--> FWU_CERT_ADD_CMD_OPT
FIP_ADD_IMG <--> FWU_FIP_ADD_IMG
The duplicated code increases the maintenance burden. Also, the build
rule of BL2U looks clumsy - we want to call MAKE_BL to compile it from
source files, but we want to put it in fwu_fip. We can not do it in a
single macro call since the current MAKE_BL does not support fwu_fip.
To refactor those in a clean way is to support one more argument to
specify the FIP prefix. If it is empty, the images are targeted to
fip, whereas if the argument is "FWU_", targeted to fwu_fip.
The build macros prefixed with FWU_ go away.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: squash MAKE_TOOL_ARGS into MAKE_BL
Now, MAKE_TOOL_ARGS is only called from MAKE_BL. Squash it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: refactor BL32 build rules
This complicated if-conditional combo was introduced by commit
70d1fc5383b9 ("Fix build error when `BL32` is not defined") in order
to fix the compile error of "make all" when SPD=opteed is given.
The requirement for the build system is like follows:
- If both BL32 and BL32_SOURCES are defined, the former takes
precedence.
- If BL32 is undefined but BL32_SOURCES is defined, we compile
BL32 from the source files.
- We want to let the build fail if neither of them is defined,
but we want to check it only when we are building FIP.
Refactor the code to not call FIP_ADD_IMG twice. The behavior is
still the same.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: replace $(call MAKE_TOOL_ARGS,...) with $(call FIP_ADD_IMG,...)
We use $(call MAKE_TOOL_ARGS,...) or $(call FIP_ADD_IMG,...) where we
expect externally built images. The difference between the two is
check_* target. It now checks if the given path exists, so it is a
good thing to use $(call FIP_ADD_IMG,...) in all the places.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Fri, 26 Jan 2018 02:42:01 +0000 (11:42 +0900)]
Build: check if specified external image exists
check_* targets check if the required option are given, but do not
check the validity of the argument. If the specified file does not
exist, let the build fail immediately instead of passing the invalid
file path to tools.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
davidcunado-arm [Thu, 1 Feb 2018 10:39:05 +0000 (10:39 +0000)]
Merge pull request #1240 from dp-arm/dp/smccc
Implement support for SMCCC v1.1 and optimize security mitigations for CVE-2017-5715 on AArch64
davidcunado-arm [Thu, 1 Feb 2018 08:58:23 +0000 (08:58 +0000)]
Merge pull request #1236 from dbasehore/gic-save-restore
RK3399 GIC save/restore
Joel Hutton [Thu, 21 Dec 2017 15:21:20 +0000 (15:21 +0000)]
AMU: Implement context save/restore for aarch32
Add amu_context_save() and amu_context_restore() functions for aarch32
Change-Id: I4df83d447adeaa9d9f203e16dc5a919ffc04d87a
Signed-off-by: Joel Hutton <joel.hutton@arm.com>
Joel Hutton [Tue, 12 Dec 2017 15:47:55 +0000 (15:47 +0000)]
AMU: Add assembler helper functions for aarch32
Change-Id: Id6dfe885a63561b1d2649521bd020367b96ae1af
Signed-off-by: Joel Hutton <joel.hutton@arm.com>
davidcunado-arm [Tue, 30 Jan 2018 20:50:16 +0000 (20:50 +0000)]
Merge pull request #1242 from afaerber/fiptool-hikey-pad
fiptool: Fix use after free
davidcunado-arm [Tue, 30 Jan 2018 12:45:52 +0000 (12:45 +0000)]
Merge pull request #1220 from jwerner-chromium/JW_ld_bfd
Makefile: Use ld.bfd linker if available
davidcunado-arm [Tue, 30 Jan 2018 11:15:20 +0000 (11:15 +0000)]
Merge pull request #1248 from stevecapperarm/fixes/pie-logic
Correct the Makefile logic for disabling PIE
davidcunado-arm [Tue, 30 Jan 2018 08:59:35 +0000 (08:59 +0000)]
Merge pull request #1235 from jwerner-chromium/JW_udelay
Fix udelay issues that can make duration slightly too short
Caesar Wang [Tue, 30 Jan 2018 01:11:24 +0000 (09:11 +0800)]
rockchip/rk3399: Fix memory corruptions or illegal memory access
Coverity scan done for the coreboot project found the issue:
Coverity (*** CID
1385418: Memory - illegal accesses (OVERRUN))
Coverity (*** CID
1385419: Memory - corruptions (OVERRUN))
Fix the Converity error issue with store_cru[] loop needs to be one
element bigger.
Fixes: ARM-software/tf-issues#544
Change-Id: I420f0a660b24baaa5fc5e78fca242cf750c9bbc7
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
davidcunado-arm [Mon, 29 Jan 2018 23:16:27 +0000 (23:16 +0000)]
Merge pull request #1237 from sandrine-bailleux-arm/sb/spm-timer
SPM: Map devices in the 1st GB
davidcunado-arm [Mon, 29 Jan 2018 22:46:27 +0000 (22:46 +0000)]
Merge pull request #1246 from sandrine-bailleux-arm/topics/sb/fix-cnp-doc
Fix documentation for CnP bit
davidcunado-arm [Mon, 29 Jan 2018 22:45:35 +0000 (22:45 +0000)]
Merge pull request #1243 from afaerber/hikey-docs
docs: hikey: Fix typo
Julius Werner [Wed, 10 Jan 2018 23:12:47 +0000 (15:12 -0800)]
Makefile: Use ld.bfd linker if available
Some toolchain distributions install both the BFD and GOLD linkers under
the names <target>-ld.bfd and <target>-ld.gold. <target>-ld will then be
a symlink that may point to either one of these.
Trusted Firmware should always be linked with the BFD linker, since GOLD
is meant primarily for userspace programs and doesn't support many of
the more obscure linker script features that may be needed for firmware.
With this patch the Makefile will auto-detect if ld.bfd is available and
use it explicitly in that case.
Change-Id: I7017055f67db3bd57d191d20a7af06ca646937d7
Signed-off-by: Julius Werner <jwerner@chromium.org>
Sandrine Bailleux [Mon, 29 Jan 2018 13:48:15 +0000 (14:48 +0100)]
Fix documentation for CnP bit
The CnP bit documentation in the Firmware Design Guide incorrectly
used the term "Page Entries" instead of "Processing Elements".
Fix that.
Change-Id: Ie44ee99c281b7b1a9ad90fba2c7d109f12425507
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Antonio Nino Diaz [Mon, 29 Jan 2018 12:00:31 +0000 (12:00 +0000)]
Analyze coding style of patches individually
With the old system `checkpatch.pl` gets one sole input that consists of
the commit message and commit diff of each commit between BASE_COMMIT
and HEAD. It also filters out changes in some files, which makes `git
format-patch` completely ignore that commit, even the commit message.
With the new system the commit message and commit diff are analyzed
separately. This means that, even if all the files modified by a commit
are filtered out, the commit message will still be analyzed.
Also, all commits are analyzed individually. This way it's easier to
know which commit caused the problem, and there are no warnings about
repeated "Signed-off-by" lines.
Change-Id: Ic676a0b76801bb2607141a8d73dc3a942dc01c0e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Dimitris Papastamos [Mon, 8 Jan 2018 13:57:39 +0000 (13:57 +0000)]
Optimize SMCCC_ARCH_WORKAROUND_1 on Cortex A57/A72/A73 and A75
This patch implements a fast path for this SMC call on affected PEs by
detecting and returning immediately after executing the workaround.
NOTE: The MMU disable/enable workaround now assumes that the MMU was
enabled on entry to EL3. This is a valid assumption as the code turns
on the MMU after reset and leaves it on until the core powers off.
Change-Id: I13c336d06a52297620a9760fb2461b4d606a30b3
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos [Thu, 11 Jan 2018 15:29:36 +0000 (15:29 +0000)]
Optimize/cleanup BPIALL workaround
In the initial implementation of this workaround we used a dedicated
workaround context to save/restore state. This patch reduces the
footprint as no additional context is needed.
Additionally, this patch reduces the memory loads and stores by 20%,
reduces the instruction count and exploits static branch prediction to
optimize the SMC path.
Change-Id: Ia9f6bf06fbf8a9037cfe7f1f1fb32e8aec38ec7d
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos [Mon, 22 Jan 2018 12:58:52 +0000 (12:58 +0000)]
Add support for SMCCC_VERSION in PSCI features
On some platforms it may be necessary to discover the SMCCC version
via a PSCI features call.
Change-Id: I95281ac2263ca9aefda1809eb03464fbdb8ac24d
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos [Fri, 19 Jan 2018 16:58:29 +0000 (16:58 +0000)]
Implement support for SMCCC v1.1
SMCCC v1.1 comes with a relaxed calling convention for AArch64
callers. The caller only needs to save x0-x3 before doing an SMC
call.
This patch adds support for SMCCC_VERSION and SMCCC_ARCH_FEATURES.
Refer to "Firmware Interfaces for mitigating CVE_2017_5715 System
Software on Arm Systems"[0] for more information.
[0] https://developer.arm.com/-/media/developer/pdf/ARM%20DEN%
200070A%20Firmware%20interfaces%20for%20mitigating%20CVE-2017-5715_V1.0.pdf
Change-Id: If5b1c55c17d6c5c7cb9c2c3ed355d3a91cdad0a9
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos [Mon, 22 Jan 2018 11:53:04 +0000 (11:53 +0000)]
runtime_exceptions: Save x4-x29 unconditionally
In preparation for SMCCC v1.1 support, save x4 to x29 unconditionally.
Previously we expected callers coming from AArch64 mode to preserve
x8-x17. This is no longer the case with SMCCC v1.1 as AArch64 callers
only need to save x0-x3.
Change-Id: Ie62d620776533969ff4a02c635422f1b9208be9c
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos [Wed, 24 Jan 2018 16:41:14 +0000 (16:41 +0000)]
Disable workaround for CVE-2017-5715 on unaffected platforms
Change-Id: Ib67b841ab621ca1ace3280e44cf3e1d83052cb73
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
davidcunado-arm [Mon, 29 Jan 2018 09:54:52 +0000 (09:54 +0000)]
Merge pull request #1241 from vchong/fixmemprot
hikey: fix assert in sec_protect()
Sandrine Bailleux [Fri, 12 Jan 2018 14:50:12 +0000 (15:50 +0100)]
SPM: Map devices in the 1st GB
This patch maps the devices in the first GB of the system address map
on the FVP into the S-EL1&0 translation regime when SPM support is
enabled. This grants the Secure Partition access to the devices in
this region, for example the memory-mapped Generic Timer device.
Change-Id: I3aeea65f859ecbe83efde2acee20c55500c451bc
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Andreas Färber [Mon, 29 Jan 2018 01:47:10 +0000 (02:47 +0100)]
docs: hikey: Fix typo
The correct name of the manufacturer is LeMaker.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Andreas Färber [Sat, 27 Jan 2018 15:46:59 +0000 (16:46 +0100)]
fiptool: Fix use after free
Commit
880b9e8b4c99ad99eee14079d5a6162733ef4931 (Add padding at the end
of the last entry) added code using toc_entry pointer, whose memory is
already freed via variable buf. This causes enormous padding on openSUSE.
Free the memory buffer only after padding is done.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Victor Chong [Sat, 27 Jan 2018 12:36:12 +0000 (21:36 +0900)]
hikey: fix assert in sec_protect()
`assert(e)` was used in place of `if (e) ERROR()` when sec_protect()
was ported from hikey fork so the logic should have been reversed.
Fixes: 3d5d9f5a ("hikey: configure the top 16MB of DRAM as secure")
Fixes: 52988b38 ("hikey: configure 4 MB of secure DRAM for OP-TEE
Secure Data Path")
Signed-off-by: Victor Chong <victor.chong@linaro.org>
Tested-by: Victor Chong <victor.chong@linaro.org>
davidcunado-arm [Fri, 26 Jan 2018 17:29:36 +0000 (17:29 +0000)]
Merge pull request #1205 from petegriffin/hikey-protect-memory
Hikey protect optee / sdp memory
Derek Basehore [Fri, 26 Jan 2018 06:05:41 +0000 (22:05 -0800)]
rockchip: Disable rdist before pwr_dm_suspend is called
This disables the redistributor before either of the pwr_dm_suspend
functions are called. This is because the rdist save code in the
rk3399 rockchip_soc_sys_pwr_dm_suspend function requires that each
redistributor be disabled before saving state.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Julius Werner [Mon, 22 Jan 2018 22:02:03 +0000 (14:02 -0800)]
delay_timer: Guarantee that delay time can never be undershot
Delay functions like udelay() are often used to ensure that the
necessary time passed to allow some asynchronous event to finish, such
as the stabilization delay for a power rail. For these use cases it is
not very problematic if the delay is slightly longer than requested,
but it is critical that the delay must never be shorter.
The current udelay() implementation contains two hazards that may cause
the delay to be slightly shorter than intended: Firstly, the amount of
ticks to wait is calculated with an integer division, which may cut off
the last fraction of ticks needed. Secondly, the delay may be short by a
fraction of a tick because we do not know whether the initial ("start")
sample of the timer was near the start or near the end of the current
tick. Thus, if the code intends to wait for one tick, it might read the
timer value close to the end of the current tick and then read it again
right after the start of the next tick, concluding that the duration of
a full tick has passed when it in fact was just a fraction of it.
This patch rounds up the division and always adds one extra tick to
counteract both problems and ensure that delays will always be larger
but never smaller than requested.
Change-Id: Ic5fe5f858b5cdf3c0dbf3e488d4d5702d9569433
Signed-off-by: Julius Werner <jwerner@chromium.org>
davidcunado-arm [Thu, 25 Jan 2018 16:36:43 +0000 (16:36 +0000)]
Merge pull request #1232 from masahir0y/uniphier
uniphier: migrate to BL2-AT-EL3
davidcunado-arm [Thu, 25 Jan 2018 00:52:01 +0000 (00:52 +0000)]
Merge pull request #1234 from SNG-ARM/master
SPM: Declare explicit width based types in secure_partition_boot_info…
davidcunado-arm [Thu, 25 Jan 2018 00:07:06 +0000 (00:07 +0000)]
Merge pull request #1231 from Leo-Yan/hikey960_enable_fiq_handling
Hikey960: Enable invalid FIQ handling
davidcunado-arm [Thu, 25 Jan 2018 00:06:50 +0000 (00:06 +0000)]
Merge pull request #1228 from dp-arm/dp/cve_2017_5715
Workarounds for CVE-2017-5715 on A9/A15 and A17 + serial console reporting
davidcunado-arm [Wed, 24 Jan 2018 23:00:01 +0000 (23:00 +0000)]
Merge pull request #1223 from vchong/poplar_bl1loadsfip
poplar: Enable emmc and recovery build support
davidcunado-arm [Wed, 24 Jan 2018 14:31:53 +0000 (14:31 +0000)]
Merge pull request #1193 from jwerner-chromium/JW_coreboot
New console API and coreboot support [v4]
Masahiro Yamada [Tue, 19 Dec 2017 02:56:05 +0000 (11:56 +0900)]
uniphier: switch to BL2-AT-EL3 and remove BL1 support
UniPhier platform implements non-TF boot ROM. Prior to the BL2-AT-EL3
support, BL1 (worked as a pseudo ROM) was needed just for ensuring BL2
is entered at EL1-S. Now, this platform is able to avoid this waste.
Enable the BL2_AT_EL3 option, and remove BL1.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Mon, 22 Jan 2018 09:35:16 +0000 (18:35 +0900)]
uniphier: set PROGRAMMABLE_RESET_ADDRESS to disable warm boot mailbox
The warm boot mailbox code is compiled if PROGRAMMABLE_RESET_ADDRESS
is disabled.
The warm boot mailbox is useless for UniPhier SoC family because BL1
is not the first image. The UniPhier platform implements non-TF ROM,
then BL1 works as a pseudo ROM, so it is never executed in the warm
boot.
The reset vector address is not actually programmable for UniPhier
platform, but it should not hurt to enable PROGRAMMABLE_RESET_ADDRESS
to disable the mailbox and remove pointless plat_get_my_entrypoint.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
davidcunado-arm [Wed, 24 Jan 2018 12:31:06 +0000 (12:31 +0000)]
Merge pull request #1233 from soby-mathew/sm/rm_uniphier_override
Allow API deprecation for uniphier platform
Peter Griffin [Thu, 21 Dec 2017 18:03:46 +0000 (18:03 +0000)]
hikey: configure 4 MB of secure DRAM for OP-TEE Secure Data Path
Update the memory firewall configuration to reserve 4 MB of secure RAM
for use by the kernel and OP-TEE as the Secure Data Path pool.
Note that this address range (0x3E800000 - 0x3EC00000) falls in the
range already set aside by UEFI (which reserves the upper 32 MB of the
1GB DRAM for OP-TEE [1]) and was previously unused.
[1] https://github.com/96boards-hikey/edk2/blob/hikey/HisiPkg/HiKeyPkg/Library/HiKeyLib/HiKeyMem.c#L44
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Victor Chong <victor.chong@linaro.org>
Jerome Forissier [Mon, 4 May 2015 07:40:03 +0000 (09:40 +0200)]
hikey: configure the top 16MB of DRAM as secure
DRAM region 0x3f000000 - 0x3fffffff is reserved for OP-TEE and should
therefore be accessible only from secure world.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Victor Chong <victor.chong@linaro.org>
Derek Basehore [Wed, 24 Jan 2018 01:18:57 +0000 (17:18 -0800)]
rockchip/rk3399: Save and restore GIC
This adds calls to the GICv3 save/restore functions for the GIC
distributor and redistributor.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Derek Basehore [Wed, 24 Jan 2018 00:24:43 +0000 (16:24 -0800)]
rockchip/rk3399: Add udelay to wait loops
We were looping for MAX_WAIT_COUNT in several places without any
delays, so this adds the delays to make those loops more predictable.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Derek Basehore [Wed, 24 Jan 2018 00:02:27 +0000 (16:02 -0800)]
rockchip/rk3399: Fix QOS save/restore
The code was accidentally restoring the QOS on suspend and saving the
QOS on resume. This is the opposite of what we want.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Derek Basehore [Tue, 23 Jan 2018 23:49:17 +0000 (15:49 -0800)]
GICv3: Fix Dist restore for when the GIC is reset
If the GIC loses power during suspend, which the restore code was
written for, exit early in the post restore power sequence. This
prevents an assert from tripping, and the power sequence isn't needed
in this case anyways.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Derek Basehore [Tue, 23 Jan 2018 23:44:31 +0000 (15:44 -0800)]
rockchip/rk3399: Change PD_CTR_LOOP to 10000
This brings ATF into line with the kernel on the timeout for power
domains turning on. We could actually timeout (when we shouldn't) on
resume when turning power domains on. The guaranteed maximum delay is
now 10ms.
Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Steve Capper [Tue, 23 Jan 2018 03:30:05 +0000 (03:30 +0000)]
Correct the Makefile logic for disabling PIE
In the Makefile we use findstring to locate gcc toolchains
that have PIE enabled by default.
Unfortunately the result of findstring is compared against
an integer, 1, rather than a non-empty string; the logic to
disable PIE then doesn't get applied.
This patch fixes the flag test.
Fixes: f7ec31db2db3 ("Disable PIE compilation option")
Change-Id: I4cd2866974e313d6b408f9681311d78a208ab468
Signed-off-by: Steve Capper <steve.capper@arm.com>
Julius Werner [Mon, 22 Jan 2018 21:56:13 +0000 (13:56 -0800)]
Make div_round_up() correct for divisors that are not a power of 2
The current div_round_up() implementation relies on round_up() which
only works correctly for boundaries that are a power of 2. It is
documented as such, but this still seems dangerously easy to overlook,
especially since many other environments (e.g. the Linux kernel) have a
similar macro without these limitations.
There is a different way to calculate this that can deal with all kinds
of divisors without other drawbacks, so let's just use that instead.
Change-Id: Id382736683f5d4e880ef00c53cfa23a2f9208440
Signed-off-by: Julius Werner <jwerner@chromium.org>
Sughosh Ganu [Mon, 11 Dec 2017 13:33:19 +0000 (19:03 +0530)]
SPM: Declare explicit width based types in secure_partition_boot_info_t structure
The secure_partition_boot_info_t structure is used to communicate boot
parameters with the StandaloneMM code executing at S-EL0 through a
shared buffer. Certain data types used for members of this structure
are opaque with their size depending on the toolchain being used.
Declare the members of the structure with explicit width based data
types, which would maintain compatibility across toolchains.
Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
Soby Mathew [Fri, 10 Nov 2017 12:08:46 +0000 (12:08 +0000)]
Allow API deprecation for uniphier platform
The `override ERROR_DEPRECATION = 1` setting in uniphier platform
makes deprecation of API difficult. Hence removing the same. This
flag should be specified on the command line if needed.
Change-Id: I8c82d8d13944e450a8cd636de3326137c04d7560
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
Victor Chong [Mon, 15 Jan 2018 15:29:47 +0000 (00:29 +0900)]
poplar: Add support for recovery build
Signed-off-by: Victor Chong <victor.chong@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Victor Chong [Tue, 2 Jan 2018 16:53:08 +0000 (01:53 +0900)]
poplar: Enable emmc support
Let bl1 and bl2 have the ability to load images from emmc instead of
dram (mmap).
Signed-off-by: Victor Chong <victor.chong@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Leo Yan [Mon, 22 Jan 2018 04:40:25 +0000 (12:40 +0800)]
Hikey960: Enable invalid FIQ handling
When some interrupts are configured as group 0 in GICv2, these
interrupts trigger FIQ signal; this results in the Linux kernel panic
by reporting log: "Bad mode in FIQ handler detected on CPU0, code
0x00000000 -- Unknown/Uncategorized". Unfortunately from kernel side it
has no permission to read the GIC register for group 0 interrupts so we
have no chance to get to know which interrupt is configured as secure
interrupt and cause the kernel panic.
For upper reason, this commit enables FIQ exception handling for
SPD_none case. If the system has not enabled SPD the FIQ interrupt is
trapped into EL3 and the FIQ handler can report the interrupt number so
we can easily narrow down which FIQ introduce unexpected interrupt.
After enable SPD we can rely on SPD interrupt route model to handle FIQ.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
davidcunado-arm [Sat, 20 Jan 2018 17:04:49 +0000 (17:04 +0000)]
Merge pull request #1229 from manojkumar-arm/manojkumar-arm/ca72-aarch32-reset-fix
lib/cpus: fix branching in reset function for cortex-a72 AARCH32 mode
davidcunado-arm [Fri, 19 Jan 2018 23:56:58 +0000 (23:56 +0000)]
Merge pull request #1227 from geesun/qx/emmc_macros
emmc: add macros CMD21, BUS_WIDTH_DDR_4 and BUS_WIDTH_DDR_8
Julius Werner [Tue, 13 Jun 2017 22:53:45 +0000 (15:53 -0700)]
coreboot: Add support for CBMEM console
coreboot supports an in-memory console to store firmware logs even when
no serial console is available. It is widely supported by
coreboot-compatible bootloaders (including SeaBIOS and GRUB) and can be
read by the Linux kernel.
This patch allows BL31 to add its own log messages to this console. The
driver will be registered automatically if coreboot support is compiled
in and detects the presence of a console buffer in the coreboot tables.
Change-Id: I31254dfa0c2fdeb7454634134b5707b4b4154907
Signed-off-by: Julius Werner <jwerner@chromium.org>
Julius Werner [Wed, 2 Aug 2017 23:31:04 +0000 (16:31 -0700)]
rockchip: Move to MULTI_CONSOLE_API
This patch changes all Rockchip platforms to use the new
MULTI_CONSOLE_API. The platform-specific plat_crash_console
implementations are removed so that the platform can use the ones from
the common platform code instead.
Also change the registers used in plat_crash_print_regs. The existing
use of x16 and x17 has always been illegal, since those registers are
reserved for use by the linker as a temporary scratch registers in
intra-procedure-call veneers and can never be expected to maintain their
values across a function call.
Change-Id: I8249424150be8d5543ed4af93b56756795a5288f
Signed-off-by: Julius Werner <jwerner@chromium.org>
Julius Werner [Fri, 9 Jun 2017 22:22:44 +0000 (15:22 -0700)]
rockchip: Use coreboot-supplied serial console on coreboot systems
This patch changes all Rockchip platforms to initialize the serial
console with information supplied by coreboot rather than hardcoded
base address and divisor values if BL31 is run on top of coreboot.
Moving the BL2-to-BL31 parameter parsing as early as possible to ensure
that the console is available for all following code.
Also update the Rockchip platform to use MULTI_CONSOLE_API.
Change-Id: I670d350fa2f8b8133539f91ac14977ab47db60d9
Signed-off-by: Julius Werner <jwerner@chromium.org>
Julius Werner [Fri, 9 Jun 2017 22:17:15 +0000 (15:17 -0700)]
Add platform-independent coreboot support library
This patch adds the foundation for a platform-independent coreboot
support library that can be shared by all platforms that boot BL31 from
coreboot (acting as BL2). It adds code to parse the "coreboot table", a
data structure that coreboot uses to communicate different kinds of
information to later-stage firmware and certain OS drivers.
As a first small use case for this information, allow platforms to
access the serial console configuration used by coreboot, removing the
need to hardcode base address and divisors and allowing Trusted Firmware
to benefit from coreboot's user configuration (e.g. which UART to pick
and which baud rate to use).
Change-Id: I2bfb39cd2609ce6640b844ab68df6c9ae3f28e9e
Signed-off-by: Julius Werner <jwerner@chromium.org>
Julius Werner [Tue, 19 Sep 2017 00:01:06 +0000 (17:01 -0700)]
drivers: cadence: cdns: Update CDNS driver to support MULTI_CONSOLE_API
This patch updates the Cadence CDNS console driver to support the new
console API. The driver will continue to support the old API as well by
checking the MULTI_CONSOLE_API compile-time flag.
Change-Id: I2ef8fb0d6ab72696997db1e0243a533499569d6b
Signed-off-by: Julius Werner <jwerner@chromium.org>
Julius Werner [Mon, 18 Sep 2017 23:59:43 +0000 (16:59 -0700)]
drivers: arm: pl011: Update PL011 driver to support MULTI_CONSOLE_API
This patch updates the ARM PL011 console driver to support the new
console API. The driver will continue to support the old API as well by
checking the MULTI_CONSOLE_API compile-time flag.
Change-Id: Ic34e4158addbb0c5fae500c9cff899c05a4f4206
Signed-off-by: Julius Werner <jwerner@chromium.org>
Julius Werner [Mon, 18 Sep 2017 23:57:51 +0000 (16:57 -0700)]
drivers: ti: uart: Update 16550 UART driver to support MULTI_CONSOLE_API
This patch updates the TI 16550 console driver to support the new
console API. The driver will continue to support the old API as well by
checking the MULTI_CONSOLE_API compile-time flag.
Change-Id: I60a44b7ba3c35c74561824c04b8dbe3e3039324c
Signed-off-by: Julius Werner <jwerner@chromium.org>
Julius Werner [Mon, 18 Sep 2017 23:49:48 +0000 (16:49 -0700)]
Add default crash console code to hook up to new console API
This patch expands the weak stubs for the plat_crash_console_xxx
functions in common platform code to use the new console API for crash
output. This should make crash console output "just work" for most cases
without the need for the platform to explicitly set up a crash console.
For cases where the normal console framework doesn't work (e.g. very
early crashes, before the platform can register any consoles), platforms
are still able to override the functions just like before.
This feature requires the MULTI_CONSOLE_API compile-time flag to work.
For builds which don't have it set, this patch has no practical effect.
Change-Id: I80dd161cb43f9db59a0bad2dae33c6560cfac584
Signed-off-by: Julius Werner <jwerner@chromium.org>
davidcunado-arm [Fri, 19 Jan 2018 13:40:12 +0000 (13:40 +0000)]
Merge pull request #1200 from robertovargas-arm/bl2-el3
Add BL2_AT_EL3 build option
Manoj Kumar [Fri, 19 Jan 2018 12:21:31 +0000 (17:51 +0530)]
lib/cpus: fix branching in reset function for cortex-a72 AARCH32 mode
In AARCH32 mode, cortex_a72_reset_func branches to address in lr
register instead of r5 register. This leads to linux boot failure
of Cortex-A72 cores in AARCH32 mode on Juno-R2 board.
This patch fixes the branching of cortex_a72_reset_func to r5
register as in cortex_a57_reset_func implementation.
Signed-off-by: Manoj Kumar <manoj.kumar3@arm.com>
Roberto Vargas [Tue, 16 Jan 2018 10:35:23 +0000 (10:35 +0000)]
bl2-el3: Don't compile BL1 when BL2_AT_EL3 is defined in FVP
This patch modifies the makefiles to avoid the definition
of BL1_SOURCES and BL2_SOURCES in the tbbr makefiles, and
it lets to the platform makefiles to define them if they
actually need these images. In the case of BL2_AT_EL3
BL1 will not be needed usually because the Boot ROM will
jump directly to BL2.
Change-Id: Ib6845a260633a22a646088629bcd7387fe35dcf9
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
Roberto Vargas [Tue, 2 Jan 2018 11:23:41 +0000 (11:23 +0000)]
bl2-el3: Don't include BL2 in fip for BL2 at EL3
It is better to not include BL2 in FIP when using `BL2 at EL3` as
platforms using this config would not have the capability to parse the
FIP format in Boot ROM and BL2 needs to be loaded independently. This
patch does the required changes for the same.
Change-Id: Iad285c247b3440e2d827fef97c3dd81f5c09cabc
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
Roberto Vargas [Mon, 20 Nov 2017 13:36:10 +0000 (13:36 +0000)]
bl2-el3: Add documentation for BL2 at EL3
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>
Dimitris Papastamos [Wed, 3 Jan 2018 10:48:59 +0000 (10:48 +0000)]
Workaround for CVE-2017-5715 for Cortex A9, A15 and A17
A per-cpu vbar is installed that implements the workaround by
invalidating the branch target buffer (BTB) directly in the case of A9
and A17 and indirectly by invalidating the icache in the case of A15.
For Cortex A57 and A72 there is currently no workaround implemented
when EL3 is in AArch32 mode so report it as missing.
For other vulnerable CPUs (e.g. Cortex A73 and Cortex A75), there are
no changes since there is currently no upstream AArch32 EL3 support
for these CPUs.
Change-Id: Ib42c6ef0b3c9ff2878a9e53839de497ff736258f
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos [Tue, 2 Jan 2018 11:37:02 +0000 (11:37 +0000)]
sp_min: Implement workaround for CVE-2017-5715
This patch introduces two workarounds for ARMv7 systems. The
workarounds need to be applied prior to any `branch` instruction in
secure world. This is achieved using a custom vector table where each
entry is an `add sp, sp, #1` instruction.
On entry to monitor mode, once the sequence of `ADD` instructions is
executed, the branch target buffer (BTB) is invalidated. The bottom
bits of `SP` are then used to decode the exception entry type.
A side effect of this change is that the exception vectors are
installed before the CPU specific reset function. This is now
consistent with how it is done on AArch64.
Note, on AArch32 systems, the exception vectors are typically tightly
integrated with the secure payload (e.g. the Trusted OS). This
workaround will need porting to each secure payload that requires it.
The patch to modify the AArch32 per-cpu vbar to the corresponding
workaround vector table according to the CPU type will be done in a
later patch.
Change-Id: I5786872497d359e496ebe0757e8017fa98f753fa
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Dimitris Papastamos [Tue, 16 Jan 2018 10:32:47 +0000 (10:32 +0000)]
Print erratum application report for CVE-2017-5715
Even though the workaround for CVE-2017-5715 is not a CPU erratum, the
code is piggybacking on the errata framework to print whether the
workaround was applied, missing or not needed.
Change-Id: I821197a4b8560c73fd894cd7cd9ecf9503c72fa3
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>