| 44804252881c11668e0af9b7803a0667922c93eb |
|
06-Aug-2014 |
Sandrine Bailleux <sandrine.bailleux@arm.com> |
Miscellaneous documentation fixes
This patch gathers miscellaneous minor fixes to the documentation, and comments
in the source code.
Change-Id: I631e3dda5abafa2d90f464edaee069a1e58b751b
Co-Authored-By: Soby Mathew <soby.mathew@arm.com>
Co-Authored-By: Dan Handley <dan.handley@arm.com>
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 0c8d4fef28768233f1f46b4d085f904293dffd2c |
|
05-Aug-2014 |
Achin Gupta <achin.gupta@arm.com> |
Unmask SError interrupt and clear SCR_EL3.EA bit
This patch disables routing of external aborts from lower exception levels to
EL3 and ensures that a SError interrupt generated as a result of execution in
EL3 is taken locally instead of a lower exception level.
The SError interrupt is enabled in the TSP code only when the operation has not
been directly initiated by the normal world. This is to prevent the possibility
of an asynchronous external abort which originated in normal world from being
taken when execution is in S-EL1.
Fixes ARM-software/tf-issues#153
Change-Id: I157b996c75996d12fd86d27e98bc73dd8bce6cd5
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 6397bf6a99d785caa9b50016cd6c8eb76083c117 |
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28-Jul-2014 |
danh-arm <dan.handley@arm.com> |
Merge pull request #172 from soby-mathew/sm/asm_assert
Introduce asm assert and optimize crash reporting
|
| 626ed510f179c905a699f4663ee933c10892b4c3 |
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25-Jun-2014 |
Soby Mathew <soby.mathew@arm.com> |
Rework the crash reporting in BL3-1 to use less stack
This patch reworks the crash reporting mechanism to further
optimise the stack and code size. The reporting makes use
of assembly console functions to avoid calling C Runtime
to report the CPU state. The crash buffer requirement is
reduced to 64 bytes with this implementation. The crash
buffer is now part of per-cpu data which makes retrieving
the crash buffer trivial.
Also now panic() will use crash reporting if
invoked from BL3-1.
Fixes ARM-software/tf-issues#199
Change-Id: I79d27a4524583d723483165dc40801f45e627da5
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| b51da821821cfda0d44f09a6f92fdc5933f9b23b |
|
26-Jun-2014 |
Achin Gupta <achin.gupta@arm.com> |
Remove coherent stack usage from the warm boot path
This patch uses stacks allocated in normal memory to enable the MMU early in the
warm boot path thus removing the dependency on stacks allocated in coherent
memory. Necessary cache and stack maintenance is performed when a cpu is being
powered down and up. This avoids any coherency issues that can arise from
reading speculatively fetched stale stack memory from another CPUs cache. These
changes affect the warm boot path in both BL3-1 and BL3-2.
The EL3 system registers responsible for preserving the MMU state are not saved
and restored any longer. Static values are used to program these system
registers when a cpu is powered on or resumed from suspend.
Change-Id: I8357e2eb5eb6c5f448492c5094b82b8927603784
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| a37810853630098559d93f1b9ecdc222e63ef9cf |
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28-May-2014 |
Soby Mathew <soby.mathew@arm.com> |
Fix compilation issue for IMF_READ_INTERRUPT_ID build flag
This patch fixes the compilation issue for trusted firmware when the
IMF_READ_INTERRUPT_ID is enabled.
Change-Id: I94ab613b9bc96a7c1935796c674dc42246aaafee
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| b460b8bf23633195535006b29e14c615f888fa24 |
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27-May-2014 |
Soby Mathew <soby.mathew@arm.com> |
Pass 'cookie' parameter to interrupt handler in BL3-1
The interrupt handling routine in BL3-1 expects a cookie as its last
parameter which was not being passed when invoking the interrupt
handler in BL3-1. This patch fixes that by passing a dummy cookie
parameter in the x3 register.
Fixes ARM-software/tf-issues#171
Change-Id: Ic98abbbd9f849e6f1c55343e865b5e0a4904a1c5
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 9865ac15765f260069047c0e7c56623eb1a70b9a |
|
27-May-2014 |
Dan Handley <dan.handley@arm.com> |
Further renames of platform porting functions
Rename the ic_* platform porting functions to plat_ic_* to be
consistent with the other functions in platform.h. Also rename
bl31_get_next_image_info() to bl31_plat_get_next_image_ep_info()
and remove the duplicate declaration in bl31.h.
Change-Id: I4851842069d3cff14c0a468daacc0a891a7ede84
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 5f0cdb059d7d5c3a8a834074a7f236b85d014dde |
|
14-May-2014 |
Dan Handley <dan.handley@arm.com> |
Split platform.h into separate headers
Previously, platform.h contained many declarations and definitions
used for different purposes. This file has been split so that:
* Platform definitions used by common code that must be defined
by the platform are now in platform_def.h. The exact include
path is exported through $PLAT_INCLUDES in the platform makefile.
* Platform definitions specific to the FVP platform are now in
/plat/fvp/fvp_def.h.
* Platform API declarations specific to the FVP platform are now
in /plat/fvp/fvp_private.h.
* The remaining platform API declarations that must be ported by
each platform are still in platform.h but this file has been
moved to /include/plat/common since this can be shared by all
platforms.
Change-Id: Ieb3bb22fbab3ee8027413c6b39a783534aee474a
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| dce74b891e0e6020d0a18384e32f280133631d9b |
|
09-May-2014 |
Achin Gupta <achin.gupta@arm.com> |
Introduce interrupt handling framework in BL3-1
This patch adds a common handler for FIQ and IRQ exceptions in the
BL3-1 runtime exception vector table. This function determines the
interrupt type and calls its handler. A crash is reported if an
inconsistency in the interrupt management framework is detected. In
the event of a spurious interrupt, execution resumes from the
instruction where the interrupt was generated.
This patch also removes 'cm_macros.S' as its contents have been moved
to 'runtime_exceptions.S'
Change-Id: I3c85ecf8eaf43a3fac429b119ed0bd706d2e2093
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| a43d431b80541ea436b71f967c5749babf978c7a |
|
07-Apr-2014 |
Soby Mathew <soby.mathew@arm.com> |
Rework BL3-1 unhandled exception handling and reporting
This patch implements the register reporting when unhandled exceptions are
taken in BL3-1. Unhandled exceptions will result in a dump of registers
to the console, before halting execution by that CPU. The Crash Stack,
previously called the Exception Stack, is used for this activity.
This stack is used to preserve the CPU context and runtime stack
contents for debugging and analysis.
This also introduces the per_cpu_ptr_cache, referenced by tpidr_el3,
to provide easy access to some of BL3-1 per-cpu data structures.
Initially, this is used to provide a pointer to the Crash stack.
panic() now prints the the error file and line number in Debug mode
and prints the PC value in release mode.
The Exception Stack is renamed to Crash Stack with this patch.
The original intention of exception stack is no longer valid
since we intend to support several valid exceptions like IRQ
and FIQ in the trusted firmware context. This stack is now
utilized for dumping and reporting the system state when a
crash happens and hence the rename.
Fixes ARM-software/tf-issues#79 Improve reporting of unhandled exception
Change-Id: I260791dc05536b78547412d147193cdccae7811a
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| c3260f9b82c5017ca078f090c03cd7135ee8f8c9 |
|
30-Apr-2014 |
Soby Mathew <soby.mathew@arm.com> |
Preserve x19-x29 across world switch for exception handling
Previously exception handlers in BL3-1, X19-X29 were not saved
and restored on every SMC/trap into EL3. Instead these registers
were 'saved as needed' as a side effect of the A64 ABI used by the C
compiler.
That approach failed when world switching but was not visible
with the TSP/TSPD code because the TSP is 64-bit, did not
clobber these registers when running and did not support pre-emption
by normal world interrupts. These scenarios showed
that the values in these registers can be passed through a world
switch, which broke the normal and trusted world assumptions
about these registers being preserved.
The Ideal solution saves and restores these registers when a
world switch occurs - but that type of implementation is more complex.
So this patch always saves and restores these registers on entry and
exit of EL3.
Fixes ARM-software/tf-issues#141
Change-Id: I9a727167bbc594454e81cf78a97ca899dfb11c27
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 97043ac98e13a726dbf8b3b41654dca759e3da2c |
|
09-Apr-2014 |
Dan Handley <dan.handley@arm.com> |
Reduce deep nesting of header files
Reduce the number of header files included from other header
files as much as possible without splitting the files. Use forward
declarations where possible. This allows removal of some unnecessary
"#ifndef __ASSEMBLY__" statements.
Also, review the .c and .S files for which header files really need
including and reorder the #include statements alphabetically.
Fixes ARM-software/tf-issues#31
Change-Id: Iec92fb976334c77453e010b60bcf56f3be72bd3e
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 35e98e5588d09145f7d0d4d98624f6b75321a187 |
|
09-Apr-2014 |
Dan Handley <dan.handley@arm.com> |
Make use of user/system includes more consistent
Make codebase consistent in its use of #include "" syntax for
user includes and #include <> syntax for system includes.
Fixes ARM-software/tf-issues#65
Change-Id: If2f7c4885173b1fd05ac2cde5f1c8a07000c7a33
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 2bf28e620a6f05700753a2b45a888c6623e20723 |
|
20-Mar-2014 |
Andrew Thoelke <andrew.thoelke@arm.com> |
Allocate single stacks for BL1 and BL2
The BL images share common stack management code which provides
one coherent and one cacheable stack for every CPU. BL1 and BL2
just execute on the primary CPU during boot and do not require
the additional CPU stacks. This patch provides separate stack
support code for UP and MP images, substantially reducing the
RAM usage for BL1 and BL2 for the FVP platform.
This patch also provides macros for declaring stacks and
calculating stack base addresses to improve consistency where
this has to be done in the firmware.
The stack allocation source files are now included via
platform.mk rather than the common BLx makefiles. This allows
each platform to select the appropriate MP/UP stack support
for each BL image.
Each platform makefile must be updated when including this
commit.
Fixes ARM-software/tf-issues#76
Change-Id: Ia251f61b8148ffa73eae3f3711f57b1ffebfa632
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 0a30cf54af7bb1f77b405062b1d5b44e809d0290 |
|
18-Mar-2014 |
Andrew Thoelke <andrew.thoelke@arm.com> |
Place assembler functions in separate sections
This extends the --gc-sections behaviour to the many assembler
support functions in the firmware images by placing each function
into its own code section. This is achieved by creating a 'func'
macro used to declare each function label.
Fixes ARM-software/tf-issues#80
Change-Id: I301937b630add292d2dec6d2561a7fcfa6fec690
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| d8b07aa03f209b6a8143816537105edc63553b8e |
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20-Mar-2014 |
Vikram Kanigiri <vikram.kanigiri@arm.com> |
Move per cpu exception stack in BL31 to tzfw_normal_stacks
Fixes ARM-software/tf-issues#70
Change-Id: I7f024f173fbdecd315076f528b05d6295aff7276
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| a7934d69508872919787742c7680b68807c24361 |
|
07-Feb-2014 |
Jeenu Viswambharan <jeenu.viswambharan@arm.com> |
Add exception vector guards
This patch adds guards so that an exception vector exceeding 32
instructions will generate a compile-time error. This keeps the
exception handlers in check from spilling over.
Change-Id: I7aa56dd0071a333664e2814c656d3896032046fe
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| caa84939a4d8b1189dea8619ccc57bdb3026b125 |
|
06-Feb-2014 |
Jeenu Viswambharan <jeenu.viswambharan@arm.com> |
Add support for handling runtime service requests
This patch uses the reworked exception handling support to handle
runtime service requests through SMCs following the SMC calling
convention. This is a giant commit since all the changes are
inter-related. It does the following:
1. Replace the old exception handling mechanism with the new one
2. Enforce that SP_EL0 is used C runtime stacks.
3. Ensures that the cold and warm boot paths use the 'cpu_context'
structure to program an ERET into the next lower EL.
4. Ensures that SP_EL3 always points to the next 'cpu_context'
structure prior to an ERET into the next lower EL
5. Introduces a PSCI SMC handler which completes the use of PSCI as a
runtime service
Change-Id: I661797f834c0803d2c674d20f504df1b04c2b852
Co-authored-by: Achin Gupta <achin.gupta@arm.com>
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| b739f22a99c96d5a295f083125505b5b5ec2f8b6 |
|
18-Jan-2014 |
Achin Gupta <achin.gupta@arm.com> |
Setup VBAR_EL3 incrementally
This patch ensures that VBAR_EL3 points to the simple stack-less
'early_exceptions' when the C runtime stack is not correctly setup to
use the more complex 'runtime_exceptions'. It is initialised to
'runtime_exceptions' once this is done.
This patch also moves all exception vectors into a '.vectors' section
and modifies linker scripts to place all such sections together. This
will minimize space wastage from alignment restrictions.
Change-Id: I8c3e596ea3412c8bd582af9e8d622bb1cb2e049d
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| e83b0cadc67882c1ba7f430d16dab80c9b3a0228 |
|
14-Jan-2014 |
Dan Handley <dan.handley@arm.com> |
Update year in copyright text to 2014
Change-Id: Ic7fb61aabae1d515b9e6baf3dd003807ff42da60
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 4a826ddad8ea0fc5ce09709f534efb72cc33611c |
|
25-Nov-2013 |
Achin Gupta <achin.gupta@arm.com> |
rework general purpose registers save and restore
The runtime exception handling assembler code used magic numbers for
saving and restoring the general purpose register context on stack
memory. The memory is interpreted as a 'gp_regs' structure and the
magic numbers are offsets to members of this structure. This patch
replaces the magic number offsets with constants. It also adds compile
time assertions to prevent an incorrect assembler view of this
structure.
Change-Id: Ibf125bfdd62ba3a33e58c5f1d71f8c229720781c
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| ab2d31edbd9dea69bd1ca495e3fce0511c9d42ff |
|
02-Dec-2013 |
Dan Handley <dan.handley@arm.com> |
Enable third party contributions
- Add instructions for contributing to ARM Trusted Firmware.
- Update copyright text in all files to acknowledge contributors.
Change-Id: I9311aac81b00c6c167d2f8c889aea403b84450e5
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 8d69a03f6a7db3c437b7cfdd15402627277d8cb4 |
|
27-Nov-2013 |
Sandrine Bailleux <sandrine.bailleux@arm.com> |
Various improvements/cleanups on the linker scripts
- Check at link-time that bootloader images will fit in memory
at run time and that they won't overlap each other.
- Remove text and rodata orphan sections.
- Define new linker symbols to remove the need for platform setup
code to know the order of sections.
- Reduce the size of the raw binary images by cutting some sections
out of the disk image and allocating them at load time, whenever
possible.
- Rework alignment constraints on sections.
- Remove unused linker symbols.
- Homogenize linker symbols names across all BLs.
- Add some comments in the linker scripts.
Change-Id: I47a328af0ccc7c8ab47fcc0dc6e7dd26160610b9
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|
| 4f6ad66ae9fcc8bcb3b0fcee10b7ab1ffcaf1a56 |
|
25-Oct-2013 |
Achin Gupta <achin.gupta@arm.com> |
ARMv8 Trusted Firmware release v0.2
/device/linaro/bootloader/arm-trusted-firmware/bl31/aarch64/runtime_exceptions.S
|