2017-04-12 |
Merge pull request #885 from antonio-nino-diaz-arm/an/console-flush
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Implement console_flush()
davidcunado-arm
authored
on 12 Apr 2017
GitHub
committed
on 12 Apr 2017
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2017-03-31 |
Add support for GCC stack protection
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Introduce new build option ENABLE_STACK_PROTECTOR. It enables
compilation of all BL images with one of the GCC -fstack-protector-*
options.
A new platform function plat_get_stack_protector_canary() is introduced.
It returns a value that is used to initialize the canary for stack
corruption detection. Returning a random value will prevent an attacker
from predicting the value and greatly increase the effectiveness of the
protection.
A message is printed at the ERROR level when a stack corruption is
detected.
To be effective, the global data must be stored at an address
lower than the base of the stacks. Failure to do so would allow an
attacker to overwrite the canary as part of an attack which would void
the protection.
FVP implementation of plat_get_stack_protector_canary is weak as
there is no real source of entropy on the FVP. It therefore relies on a
timer's value, which could be predictable.
Change-Id: Icaaee96392733b721fa7c86a81d03660d3c1bc06
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
Douglas Raillard
authored
on 24 Feb 2017
dp-arm
committed
on 31 Mar 2017
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Add and use plat_crash_console_flush() API
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This API makes sure that all the characters sent to the crash console
are output before returning from it.
Porting guide updated.
Change-Id: I1785f970a40f6aacfbe592b6a911b1f249bb2735
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Antonio Nino Diaz
committed
on 31 Mar 2017
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2017-03-08 |
Add dynamic region support to xlat tables lib v2
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Added APIs to add and remove regions to the translation tables
dynamically while the MMU is enabled. Only static regions are allowed
to overlap other static ones (for backwards compatibility).
A new private attribute (MT_DYNAMIC / MT_STATIC) has been added to
flag each region as such.
The dynamic mapping functionality can be enabled or disabled when
compiling by setting the build option PLAT_XLAT_TABLES_DYNAMIC to 1
or 0. This can be done per-image.
TLB maintenance code during dynamic table mapping and unmapping has
also been added.
Fixes ARM-software/tf-issues#310
Change-Id: I19e8992005c4292297a382824394490c5387aa3b
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Antonio Nino Diaz
committed
on 8 Mar 2017
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2017-02-13 |
PSCI: Decouple PSCI stat residency calculation from PMF
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This patch introduces the following three platform interfaces:
* void plat_psci_stat_accounting_start(const psci_power_state_t *state_info)
This is an optional hook that platforms can implement in order
to perform accounting before entering a low power state. This
typically involves capturing a timestamp.
* void plat_psci_stat_accounting_stop(const psci_power_state_t *state_info)
This is an optional hook that platforms can implement in order
to perform accounting after exiting from a low power state. This
typically involves capturing a timestamp.
* u_register_t plat_psci_stat_get_residency(unsigned int lvl,
const psci_power_state_t *state_info,
unsigned int last_cpu_index)
This is an optional hook that platforms can implement in order
to calculate the PSCI stat residency.
If any of these interfaces are overridden by the platform, it is
recommended that all of them are.
By default `ENABLE_PSCI_STAT` is disabled. If `ENABLE_PSCI_STAT`
is set but `ENABLE_PMF` is not set then an alternative PSCI stat
collection backend must be provided. If both are set, then default
weak definitions of these functions are provided, using PMF to
calculate the residency.
NOTE: Previously, platforms did not have to explicitly set
`ENABLE_PMF` since this was automatically done by the top-level
Makefile.
Change-Id: I17b47804dea68c77bc284df15ee1ccd66bc4b79b
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
dp-arm
committed
on 13 Feb 2017
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2016-12-20 |
Improve FWU documentation
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- Clarify the documentation of the 'FWU_SMC_IMAGE_COPY' SMC in the
Firmware Update guide. Also extend the list of pre-conditions to
include the additional input validation implemented by previous
patches.
- Improve documentation of bl1_plat_mem_check() in the porting
guide. It now specifies that the generic FWU code protects
bl1_plat_mem_check() from integer overflows resulting from
the addition of the base address and size passed in arguments.
Change-Id: I07b47a3778df7b9c089529b2dd2135707640a91c
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Sandrine Bailleux
authored
on 11 Nov 2016
Dan Handley
committed
on 20 Dec 2016
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Merge pull request #785 from dp-arm/dp/nvcounter
Dan Handley
committed
on 20 Dec 2016
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2016-12-15 |
tbbr: Fix updating of Non-Trusted NV counter
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The previous code required that a certificate be signed with the ROT
key before the platform's NV counter could be updated with the value
in the certificate. This implies that the Non-Trusted NV counter was
not being updated for Non-Trusted content certificates, as they cannot
be signed with the ROT key in the TBBR CoT scheme.
The code is reworked to only allow updating the platform's Trusted NV
counter when a certificate protected by the Trusted NV counter is
signed with the ROT key.
Content certificates protected by the Non-Trusted NV counter are
allowed to update the platform's Non-Trusted NV counter, assuming
that the certificate value is higher than the platform's value.
A new optional platform API has been introduced, named
plat_set_nv_ctr2(). Platforms may choose to implement it and perform
additional checks based on the authentication image descriptor before
modifying the NV counters. A default weak implementation is available
that just calls into plat_set_nv_ctr().
Fixes ARM-software/tf-issues#426
Change-Id: I4fc978fd28a3007bc0cef972ff1f69ad0413b79c
Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
dp-arm
committed
on 15 Dec 2016
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2016-12-13 |
Add PLAT_xxx_ADDR_SPACE_SIZE definitions
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Added the definitions `PLAT_PHY_ADDR_SPACE_SIZE` and
`PLAT_VIRT_ADDR_SPACE_SIZE` which specify respectively the physical
and virtual address space size a platform can use.
`ADDR_SPACE_SIZE` is now deprecated. To maintain compatibility, if any
of the previous defines aren't present, the value of `ADDR_SPACE_SIZE`
will be used instead.
For AArch64, register ID_AA64MMFR0_EL1 is checked to calculate the
max PA supported by the hardware and to verify that the previously
mentioned definition is valid. For AArch32, a 40 bit physical
address space is considered.
Added asserts to check for overflows.
Porting guide updated.
Change-Id: Ie8ce1da5967993f0c94dbd4eb9841fc03d5ef8d6
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Antonio Nino Diaz
committed
on 13 Dec 2016
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2016-11-14 |
Document plat_psci_ops.(system_off|system_reset)
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fixes ARM-Software/tf-issues#346
Change-Id: I946c8eab650bba7407775462ce91f394d767e079
Signed-off-by: Douglas Raillard <douglas.raillard@arm.com>
Douglas Raillard
committed
on 14 Nov 2016
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2016-11-03 |
Porting guide: Improve bl1_plat_mem_check() doc
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This patch fixes the type of the return value of bl1_plat_mem_check()
in the porting guide. It also specifies the expected return value.
Change-Id: I7c437342b8bfb1e621d74b2edf0aaf97b913216a
Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Sandrine Bailleux
committed
on 3 Nov 2016
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2016-10-24 |
Docs: fix a typo in Porting Guide about plat_get_my_entrypoint()
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Do not double the phrase "called with the".
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada
committed
on 24 Oct 2016
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2016-10-18 |
Merge pull request #677 from hzhuang1/gpt
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partition: check GPT partition table
danh-arm
authored
on 18 Oct 2016
GitHub
committed
on 18 Oct 2016
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2016-10-11 |
Docs: Rename duplicate title in porting guide
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Fix one of the two titles that ended up being the same, although both
describe different things.
Change-Id: I66ecf369643709898ee4c014659d8f85c0480643
Jeenu Viswambharan
committed
on 11 Oct 2016
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2016-09-21 |
AArch32: Common changes needed for BL1/BL2
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This patch adds common changes to support AArch32 state in
BL1 and BL2. Following are the changes:
* Added functions for disabling MMU from Secure state.
* Added AArch32 specific SMC function.
* Added semihosting support.
* Added reporting of unhandled exceptions.
* Added uniprocessor stack support.
* Added `el3_entrypoint_common` macro that can be
shared by BL1 and BL32 (SP_MIN) BL stages. The
`el3_entrypoint_common` is similar to the AArch64
counterpart with the main difference in the assembly
instructions and the registers that are relevant to
AArch32 execution state.
* Enabled `LOAD_IMAGE_V2` flag in Makefile for
`ARCH=aarch32` and added check to make sure that
platform has not overridden to disable it.
Change-Id: I33c6d8dfefb2e5d142fdfd06a0f4a7332962e1a3
Yatharth Kochar
committed
on 21 Sep 2016
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2016-09-20 |
Add new version of image loading.
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This patch adds capability to load BL images based on image
descriptors instead of hard coded way of loading BL images.
This framework is designed such that it can be readily adapted
by any BL stage that needs to load images.
In order to provide the above capability the following new
platform functions are introduced:
bl_load_info_t *plat_get_bl_image_load_info(void);
This function returns pointer to the list of images that the
platform has populated to load.
bl_params_t *plat_get_next_bl_params(void);
This function returns a pointer to the shared memory that the
platform has kept aside to pass trusted firmware related
information that next BL image needs.
void plat_flush_next_bl_params(void);
This function flushes to main memory all the params that
are passed to next image.
int bl2_plat_handle_post_image_load(unsigned int image_id)
This function can be used by the platforms to update/use
image information for given `image_id`.
`desc_image_load.c` contains utility functions which can be used
by the platforms to generate, load and executable, image list
based on the registered image descriptors.
This patch also adds new version of `load_image/load_auth_image`
functions in-order to achieve the above capability.
Following are the changes for the new version as compared to old:
- Refactor the signature and only keep image_id and image_info_t
arguments. Removed image_base argument as it is already passed
through image_info_t. Given that the BL image base addresses and
limit/size are already provided by the platforms, the meminfo_t
and entry_point_info arguments are not needed to provide/reserve
the extent of free memory for the given BL image.
- Added check for the image size against the defined max size.
This is needed because the image size could come from an
unauthenticated source (e.g. the FIP header).
To make this check, new member is added to the image_info_t
struct for identifying the image maximum size.
New flag `LOAD_IMAGE_V2` is added in the Makefile.
Default value is 0.
NOTE: `TRUSTED_BOARD_BOOT` is currently not supported when
`LOAD_IMAGE_V2` is enabled.
Change-Id: Ia7b643f4817a170d5a2fbf479b9bc12e63112e79
Yatharth Kochar
committed
on 20 Sep 2016
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Document: add PLAT_PARTITION_MAX_ENTRIES define
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Partition driver requires the "PLAT_PARTITION_MAX_ENTRIES" definition.
By default, it's defined to 128 in partition driver. But it costs a lot
of memory, and only a few partition entries are really used in platform
partition table. If user wants use memory efficiently, user should
define the build flag in platform.mk instead.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Haojian Zhuang
committed
on 20 Sep 2016
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2016-09-15 |
PSCI: Add support for PSCI NODE_HW_STATE API
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This patch adds support for NODE_HW_STATE PSCI API by introducing a new
PSCI platform hook (get_node_hw_state). The implementation validates
supplied arguments, and then invokes this platform-defined hook and
returns its result to the caller. PSCI capabilities are updated
accordingly.
Also updates porting and firmware design guides.
Change-Id: I808e55bdf0c157002a7c104b875779fe50a68a30
Jeenu Viswambharan
committed
on 15 Sep 2016
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2016-07-18 |
Rework type usage in Trusted Firmware
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This patch reworks type usage in generic code, drivers and ARM platform files
to make it more portable. The major changes done with respect to
type usage are as listed below:
* Use uintptr_t for storing address instead of uint64_t or unsigned long.
* Review usage of unsigned long as it can no longer be assumed to be 64 bit.
* Use u_register_t for register values whose width varies depending on
whether AArch64 or AArch32.
* Use generic C types where-ever possible.
In addition to the above changes, this patch also modifies format specifiers
in print invocations so that they are AArch64/AArch32 agnostic. Only files
related to upcoming feature development have been reworked.
Change-Id: I9f8c78347c5a52ba7027ff389791f1dad63ee5f8
Soby Mathew
committed
on 18 Jul 2016
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2016-06-16 |
Add optional PSCI STAT residency & count functions
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This patch adds following optional PSCI STAT functions:
- PSCI_STAT_RESIDENCY: This call returns the amount of time spent
in power_state in microseconds, by the node represented by the
`target_cpu` and the highest level of `power_state`.
- PSCI_STAT_COUNT: This call returns the number of times a
`power_state` has been used by the node represented by the
`target_cpu` and the highest power level of `power_state`.
These APIs provides residency statistics for power states that has
been used by the platform. They are implemented according to v1.0
of the PSCI specification.
By default this optional feature is disabled in the PSCI
implementation. To enable it, set the boolean flag
`ENABLE_PSCI_STAT` to 1. This also sets `ENABLE_PMF` to 1.
Change-Id: Ie62e9d37d6d416ccb1813acd7f616d1ddd3e8aff
Yatharth Kochar
authored
on 9 May 2016
Soby Mathew
committed
on 16 Jun 2016
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2016-06-08 |
Merge pull request #642 from soby-mathew/sm/override_rotpk
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Allow dynamic overriding of ROTPK verification
danh-arm
committed
on 8 Jun 2016
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2016-06-03 |
Allow dynamic overriding of ROTPK verification
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A production ROM with TBB enabled must have the ability to boot test software
before a real ROTPK is deployed (e.g. manufacturing mode). Previously the
function plat_get_rotpk_info() must return a valid ROTPK for TBB to succeed.
This patch adds an additional bit `ROTPK_NOT_DEPLOYED` in the output `flags`
parameter from plat_get_rotpk_info(). If this bit is set, then the ROTPK
in certificate is used without verifying against the platform value.
Fixes ARM-software/tf-issues#381
Change-Id: Icbbffab6bff8ed76b72431ee21337f550d8fdbbb
Soby Mathew
committed
on 3 Jun 2016
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Move stdlib header files to include/lib/stdlib
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* Move stdlib header files from include/stdlib to include/lib/stdlib for
consistency with other library headers.
* Fix checkpatch paths to continue excluding stdlib files.
* Create stdlib.mk to define the stdlib source files and include directories.
* Include stdlib.mk from the top level Makefile.
* Update stdlib header path in the fip_create Makefile.
* Update porting-guide.md with the new paths.
Change-Id: Ia92c2dc572e9efb54a783e306b5ceb2ce24d27fa
Dan Handley
committed
on 3 Jun 2016
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2016-05-25 |
PSCI: Add pwr_domain_pwr_down_wfi() hook in plat_psci_ops
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This patch adds a new optional platform hook `pwr_domain_pwr_down_wfi()` in
the plat_psci_ops structure. This hook allows the platform to perform platform
specific actions including the wfi invocation to enter powerdown. This hook
is invoked by both psci_do_cpu_off() and psci_cpu_suspend_start() functions.
The porting-guide.md is also updated for the same.
This patch also modifies the `psci_power_down_wfi()` function to invoke
`plat_panic_handler` incase of panic instead of the busy while loop.
Fixes ARM-Software/tf-issues#375
Change-Id: Iba104469a1445ee8d59fb3a6fdd0a98e7f24dfa3
Soby Mathew
committed
on 25 May 2016
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2016-05-20 |
Add 32 bit version of plat_get_syscnt_freq
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Added plat_get_syscnt_freq2, which is a 32 bit variant of the 64 bit
plat_get_syscnt_freq. The old one has been flagged as deprecated.
Common code has been updated to use this new version. Porting guide
has been updated.
Change-Id: I9e913544926c418970972bfe7d81ee88b4da837e
Antonio Nino Diaz
committed
on 20 May 2016
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2016-04-27 |
Merge pull request #597 from hzhuang1/emmc_v3.2
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Emmc v3
danh-arm
committed
on 27 Apr 2016
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Document: add MAX_IO_BLOCK_DEVICES platform macro
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Add MAX_IO_BLOCK_DEVICES in porting guide. It's necessary to define
this macro to support io block device. With this macro, multiple
block devices could be opened at the same time. Each block device
stores its own state.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Haojian Zhuang
committed
on 27 Apr 2016
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Doc: Fix the path to the xlat lib
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The translation table library code has moved from lib/aarch64/ to
lib/xlat_tables/ since commit 3ca9928df but the Porting Guide still
points to the old location. This patch fixes this issue.
Change-Id: I983a9a100d70eacf6bac71725ffbb4bb5f3732b0
Sandrine Bailleux
committed
on 27 Apr 2016
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2016-04-14 |
Dump platform-defined regs in crash reporting
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It is up to the platform to implement the new plat_crash_print_regs macro to
report all relevant platform registers helpful for troubleshooting.
plat_crash_print_regs merges or calls previously defined plat_print_gic_regs
and plat_print_interconnect_regs macros for each existing platforms.
NOTE: THIS COMMIT REQUIRES ALL PLATFORMS THAT ENABLE THE `CRASH_REPORTING`
BUILD FLAG TO MIGRATE TO USE THE NEW `plat_crash_print_regs()` MACRO. BY
DEFAULT, `CRASH_REPORTING` IS ENABLED IN DEBUG BUILDS FOR ALL PLATFORMS.
Fixes: arm-software/tf-issues#373
Signed-off-by: Gerald Lejeune <gerald.lejeune@st.com>
Gerald Lejeune
committed
on 14 Apr 2016
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2016-04-08 |
Merge pull request #587 from antonio-nino-diaz-arm/an/rename-bl33-base
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Rename BL33_BASE and make it work with RESET_TO_BL31
danh-arm
committed
on 8 Apr 2016
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