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ARMv8 Trusted Firmware release v0.2
2013-10-25 09:08:21 +01:00
#
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>
2018-01-19 16:58:29 +00:00
# Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
ARMv8 Trusted Firmware release v0.2
2013-10-25 09:08:21 +01:00
#
Use SPDX license identifiers To make software license auditing simpler, use SPDX[0] license identifiers instead of duplicating the license text in every file. NOTE: Files that have been imported by FreeBSD have not been modified. [0]: https://spdx.org/ Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2017-05-03 09:38:09 +01:00
# SPDX-License-Identifier: BSD-3-Clause
ARMv8 Trusted Firmware release v0.2
2013-10-25 09:08:21 +01:00
#
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
################################################################################
# Include SPM Makefile
################################################################################
ifeq (${ENABLE_SPM},1)
$(info Including SPM makefile)
include services/std_svc/spm/spm.mk
endif
Introduce `el3_runtime` and `PSCI` libraries This patch moves the PSCI services and BL31 frameworks like context management and per-cpu data into new library components `PSCI` and `el3_runtime` respectively. This enables PSCI to be built independently from BL31. A new `psci_lib.mk` makefile is introduced which adds the relevant PSCI library sources and gets included by `bl31.mk`. Other changes which are done as part of this patch are: * The runtime services framework is now moved to the `common/` folder to enable reuse. * The `asm_macros.S` and `assert_macros.S` helpers are moved to architecture specific folder. * The `plat_psci_common.c` is moved from the `plat/common/aarch64/` folder to `plat/common` folder. The original file location now has a stub which just includes the file from new location to maintain platform compatibility. Most of the changes wouldn't affect platform builds as they just involve changes to the generic bl1.mk and bl31.mk makefiles. NOTE: THE `plat_psci_common.c` FILE HAS MOVED LOCATION AND THE STUB FILE AT THE ORIGINAL LOCATION IS NOW DEPRECATED. PLATFORMS SHOULD MODIFY THEIR MAKEFILES TO INCLUDE THE FILE FROM THE NEW LOCATION. Change-Id: I6bd87d5b59424995c6a65ef8076d4fda91ad5e86
2016-03-24 16:56:29 +00:00
include lib/psci/psci_lib.mk
Remove vpath usage in makefiles Remove all usage of the vpath keyword in makefiles as it was prone to mistakes. Specify the relative paths to source files instead. Also reorder source files in makefiles alphabetically. Fixes ARM-software/tf-issues#121 Change-Id: Id15f60655444bae60e0e2165259efac71a50928b
2014-04-15 18:20:09 +01:00
BL31_SOURCES += bl31/bl31_main.c \
Introduce interrupt registration framework in BL3-1 This patch introduces a framework for registering interrupts routed to EL3. The interrupt routing model is governed by the SCR_EL3.IRQ and FIQ bits and the security state an interrupt is generated in. The framework recognizes three type of interrupts depending upon which exception level and security state they should be handled in i.e. Secure EL1 interrupts, Non-secure interrupts and EL3 interrupts. It provides an API and macros that allow a runtime service to register an handler for a type of interrupt and specify the routing model. The framework validates the routing model and uses the context management framework to ensure that it is applied to the SCR_EL3 prior to entry into the target security state. It saves the handler in internal data structures. An API is provided to retrieve the handler when an interrupt of a particular type is asserted. Registration is expected to be done once by the primary CPU. The same handler and routing model is used for all CPUs. Support for EL3 interrupts will be added to the framework in the future. A makefile flag has been added to allow the FVP port choose between ARM GIC v2 and v3 support in EL3. The latter version is currently unsupported. A framework for handling interrupts in BL3-1 will be introduced in subsequent patches. The default routing model in the absence of any handlers expects no interrupts to be routed to EL3. Change-Id: Idf7c023b34fcd4800a5980f2bef85e4b5c29e649
2014-05-09 10:03:15 +01:00
bl31/interrupt_mgmt.c \
Remove vpath usage in makefiles Remove all usage of the vpath keyword in makefiles as it was prone to mistakes. Specify the relative paths to source files instead. Also reorder source files in makefiles alphabetically. Fixes ARM-software/tf-issues#121 Change-Id: Id15f60655444bae60e0e2165259efac71a50928b
2014-04-15 18:20:09 +01:00
bl31/aarch64/bl31_entrypoint.S \
bl31/aarch64/runtime_exceptions.S \
Remove early_exceptions from BL3-1 The crash reporting support and early initialisation of the cpu_data allow the runtime_exception vectors to be used from the start in BL3-1, removing the need for the additional early_exception vectors and 2KB of code from BL3-1. Change-Id: I5f8997dabbaafd8935a7455910b7db174a25d871
2014-06-02 12:38:12 +01:00
bl31/aarch64/crash_reporting.S \
Move context management code to common location The upcoming Firmware Update feature needs transitioning across Secure/Normal worlds to complete the FWU process and hence requires context management code to perform this task. Currently context management code is part of BL31 stage only. This patch moves the code from (include)/bl31 to (include)/common. Some function declarations/definitions and macros have also moved to different files to help code sharing. Change-Id: I3858b08aecdb76d390765ab2b099f457873f7b0c
2015-10-02 17:56:48 +01:00
bl31/bl31_context_mgmt.c \
Introduce `el3_runtime` and `PSCI` libraries This patch moves the PSCI services and BL31 frameworks like context management and per-cpu data into new library components `PSCI` and `el3_runtime` respectively. This enables PSCI to be built independently from BL31. A new `psci_lib.mk` makefile is introduced which adds the relevant PSCI library sources and gets included by `bl31.mk`. Other changes which are done as part of this patch are: * The runtime services framework is now moved to the `common/` folder to enable reuse. * The `asm_macros.S` and `assert_macros.S` helpers are moved to architecture specific folder. * The `plat_psci_common.c` is moved from the `plat/common/aarch64/` folder to `plat/common` folder. The original file location now has a stub which just includes the file from new location to maintain platform compatibility. Most of the changes wouldn't affect platform builds as they just involve changes to the generic bl1.mk and bl31.mk makefiles. NOTE: THE `plat_psci_common.c` FILE HAS MOVED LOCATION AND THE STUB FILE AT THE ORIGINAL LOCATION IS NOW DEPRECATED. PLATFORMS SHOULD MODIFY THEIR MAKEFILES TO INCLUDE THE FILE FROM THE NEW LOCATION. Change-Id: I6bd87d5b59424995c6a65ef8076d4fda91ad5e86
2016-03-24 16:56:29 +00:00
common/runtime_svc.c \
Move plat/common source file definitions to generic Makefiles These source file definitions should be defined in generic Makefiles so that all platforms can benefit. Ensure that the symbols are properly marked as weak so they can be overridden by platforms. NOTE: This change is a potential compatibility break for non-upstream platforms. Change-Id: I7b892efa9f2d6d216931360dc6c436e1d10cffed Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2017-03-07 11:02:47 +00:00
plat/common/aarch64/platform_mp_stack.S \
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>
2018-01-19 16:58:29 +00:00
services/arm_arch_svc/arm_arch_svc_setup.c \
Remove vpath usage in makefiles Remove all usage of the vpath keyword in makefiles as it was prone to mistakes. Specify the relative paths to source files instead. Also reorder source files in makefiles alphabetically. Fixes ARM-software/tf-issues#121 Change-Id: Id15f60655444bae60e0e2165259efac71a50928b
2014-04-15 18:20:09 +01:00
services/std_svc/std_svc_setup.c \
SPM: Introduce Secure Partition Manager A Secure Partition is a software execution environment instantiated in S-EL0 that can be used to implement simple management and security services. Since S-EL0 is an unprivileged exception level, a Secure Partition relies on privileged firmware e.g. ARM Trusted Firmware to be granted access to system and processor resources. Essentially, it is a software sandbox that runs under the control of privileged software in the Secure World and accesses the following system resources: - Memory and device regions in the system address map. - PE system registers. - A range of asynchronous exceptions e.g. interrupts. - A range of synchronous exceptions e.g. SMC function identifiers. A Secure Partition enables privileged firmware to implement only the absolutely essential secure services in EL3 and instantiate the rest in a partition. Since the partition executes in S-EL0, its implementation cannot be overly complex. The component in ARM Trusted Firmware responsible for managing a Secure Partition is called the Secure Partition Manager (SPM). The SPM is responsible for the following: - Validating and allocating resources requested by a Secure Partition. - Implementing a well defined interface that is used for initialising a Secure Partition. - Implementing a well defined interface that is used by the normal world and other secure services for accessing the services exported by a Secure Partition. - Implementing a well defined interface that is used by a Secure Partition to fulfil service requests. - Instantiating the software execution environment required by a Secure Partition to fulfil a service request. Change-Id: I6f7862d6bba8732db5b73f54e789d717a35e802f Co-authored-by: Douglas Raillard <douglas.raillard@arm.com> Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Co-authored-by: Achin Gupta <achin.gupta@arm.com> Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2017-10-24 10:07:35 +01:00
${PSCI_LIB_SOURCES} \
${SPM_SOURCES} \
Move bakery algorithm implementation out of coherent memory This patch moves the bakery locks out of coherent memory to normal memory. This implies that the lock information needs to be placed on a separate cache line for each cpu. Hence the bakery_lock_info_t structure is allocated in the per-cpu data so as to minimize memory wastage. A similar platform per-cpu data is introduced for the platform locks. As a result of the above changes, the bakery lock api is completely changed. Earlier, a reference to the lock structure was passed to the lock implementation. Now a unique-id (essentially an index into the per-cpu data array) and an offset into the per-cpu data for bakery_info_t needs to be passed to the lock implementation. Change-Id: I1e76216277448713c6c98b4c2de4fb54198b39e0
2015-01-08 18:02:19 +00:00
Add Performance Measurement Framework(PMF) This patch adds Performance Measurement Framework(PMF) in the ARM Trusted Firmware. PMF is implemented as a library and the SMC interface is provided through ARM SiP service. The PMF provides capturing, storing, dumping and retrieving the time-stamps, by enabling the development of services by different providers, that can be easily integrated into ARM Trusted Firmware. The PMF capture and retrieval APIs can also do appropriate cache maintenance operations to the timestamp memory when the caller indicates so. `pmf_main.c` consists of core functions that implement service registration, initialization, storing, dumping and retrieving the time-stamp. `pmf_smc.c` consists SMC handling for registered PMF services. `pmf.h` consists of the macros that can be used by the PMF service providers to register service and declare time-stamp functions. `pmf_helpers.h` consists of internal macros that are used by `pmf.h` By default this feature is disabled in the ARM trusted firmware. To enable it set the boolean flag `ENABLE_PMF` to 1. NOTE: The caller is responsible for specifying the appropriate cache maintenance flags and for acquiring/releasing appropriate locks before/after capturing/retrieving the time-stamps. Change-Id: Ib45219ac07c2a81b9726ef6bd9c190cc55e81854
2016-03-11 14:20:19 +00:00
ifeq (${ENABLE_PMF}, 1)
BL31_SOURCES += lib/pmf/pmf_main.c
endif
BL31: Introduce Exception Handling Framework EHF is a framework that allows dispatching of EL3 interrupts to their respective handlers in EL3. This framework facilitates the firmware-first error handling policy in which asynchronous exceptions may be routed to EL3. Such exceptions may be handed over to respective exception handlers. Individual handlers might further delegate exception handling to lower ELs. The framework associates the delegated execution to lower ELs with a priority value. For interrupts, this corresponds to the priorities programmed in GIC; for other types of exceptions, viz. SErrors or Synchronous External Aborts, individual dispatchers shall explicitly associate delegation to a secure priority. In order to prevent lower priority interrupts from preempting higher priority execution, the framework provides helpers to control preemption by virtue of programming Priority Mask register in the interrupt controller. This commit allows for handling interrupts targeted at EL3. Exception handlers own interrupts by assigning them a range of secure priorities, and registering handlers for each priority range it owns. Support for exception handling in BL31 image is enabled by setting the build option EL3_EXCEPTION_HANDLING=1. Documentation to follow. NOTE: The framework assumes the priority scheme supported by platform interrupt controller is compliant with that of ARM GIC architecture (v2 or later). Change-Id: I7224337e4cea47c6ca7d7a4ca22a3716939f7e42 Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-09-22 08:32:10 +01:00
ifeq (${EL3_EXCEPTION_HANDLING},1)
BL31_SOURCES += bl31/ehf.c
endif
BL31: Add SDEI dispatcher The implementation currently supports only interrupt-based SDEI events, and supports all interfaces as defined by SDEI specification version 1.0 [1]. Introduce the build option SDEI_SUPPORT to include SDEI dispatcher in BL31. Update user guide and porting guide. SDEI documentation to follow. [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf Change-Id: I758b733084e4ea3b27ac77d0259705565842241a Co-authored-by: Yousuf A <yousuf.sait@arm.com> Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-10-16 08:43:14 +01:00
ifeq (${SDEI_SUPPORT},1)
ifeq (${EL3_EXCEPTION_HANDLING},0)
$(error EL3_EXCEPTION_HANDLING must be 1 for SDEI support)
endif
BL31_SOURCES += services/std_svc/sdei/sdei_event.c \
services/std_svc/sdei/sdei_intr_mgmt.c \
services/std_svc/sdei/sdei_main.c \
services/std_svc/sdei/sdei_state.c
endif
Refactor Statistical Profiling Extensions implementation Factor out SPE operations in a separate file. Use the publish subscribe framework to drain the SPE buffers before entering secure world. Additionally, enable SPE before entering normal world. A side effect of this change is that the profiling buffers are now only drained when a transition from normal world to secure world happens. Previously they were drained also on return from secure world, which is unnecessary as SPE is not supported in S-EL1. Change-Id: I17582c689b4b525770dbb6db098b3a0b5777b70a Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
2017-10-13 12:06:06 +01:00
ifeq (${ENABLE_SPE_FOR_LOWER_ELS},1)
BL31_SOURCES += lib/extensions/spe/spe.c
endif
AMU: Implement support for aarch64 The `ENABLE_AMU` build option can be used to enable the architecturally defined AMU counters. At present, there is no support for the auxiliary counter group. Change-Id: I7ea0c0a00327f463199d1b0a481f01dadb09d312 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
2017-10-12 13:02:29 +01:00
ifeq (${ENABLE_AMU},1)
AMU: Add configuration helpers for aarch64 Add some AMU helper functions to allow configuring, reading and writing of the Group 0 and Group 1 counters. Documentation for these helpers will come in a separate patch. Change-Id: I656e070d2dae830c22414f694aa655341d4e2c40 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
2017-11-13 09:49:45 +00:00
BL31_SOURCES += lib/extensions/amu/aarch64/amu.c \
lib/extensions/amu/aarch64/amu_helpers.S
AMU: Implement support for aarch64 The `ENABLE_AMU` build option can be used to enable the architecturally defined AMU counters. At present, there is no support for the auxiliary counter group. Change-Id: I7ea0c0a00327f463199d1b0a481f01dadb09d312 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
2017-10-12 13:02:29 +01:00
endif
Enable SVE for Non-secure world This patch adds a new build option, ENABLE_SVE_FOR_NS, which when set to one EL3 will check to see if the Scalable Vector Extension (SVE) is implemented when entering and exiting the Non-secure world. If SVE is implemented, EL3 will do the following: - Entry to Non-secure world: SIMD, FP and SVE functionality is enabled. - Exit from Non-secure world: SIMD, FP and SVE functionality is disabled. As SIMD and FP registers are part of the SVE Z-registers then any use of SIMD / FP functionality would corrupt the SVE registers. The build option default is 1. The SVE functionality is only supported on AArch64 and so the build option is set to zero when the target archiecture is AArch32. This build option is not compatible with the CTX_INCLUDE_FPREGS - an assert will be raised on platforms where SVE is implemented and both ENABLE_SVE_FOR_NS and CTX_INCLUDE_FPREGS are set to 1. Also note this change prevents secure world use of FP&SIMD registers on SVE-enabled platforms. Existing Secure-EL1 Payloads will not work on such platforms unless ENABLE_SVE_FOR_NS is set to 0. Additionally, on the first entry into the Non-secure world the SVE functionality is enabled and the SVE Z-register length is set to the maximum size allowed by the architecture. This includes the use case where EL2 is implemented but not used. Change-Id: Ie2d733ddaba0b9bef1d7c9765503155188fe7dae Signed-off-by: David Cunado <david.cunado@arm.com>
2017-10-20 11:30:57 +01:00
ifeq (${ENABLE_SVE_FOR_NS},1)
BL31_SOURCES += lib/extensions/sve/sve.c
endif
Workaround for CVE-2017-5715 on Cortex A57 and A72 Invalidate the Branch Target Buffer (BTB) on entry to EL3 by disabling and enabling the MMU. To achieve this without performing any branch instruction, a per-cpu vbar is installed which executes the workaround and then branches off to the corresponding vector entry in the main vector table. A side effect of this change is that the main vbar is configured before any reset handling. This is to allow the per-cpu reset function to override the vbar setting. This workaround is enabled by default on the affected CPUs. Change-Id: I97788d38463a5840a410e3cea85ed297a1678265 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
2017-11-30 14:53:53 +00:00
ifeq (${WORKAROUND_CVE_2017_5715},1)
Workaround for CVE-2017-5715 on Cortex A73 and A75 Invalidate the Branch Target Buffer (BTB) on entry to EL3 by temporarily dropping into AArch32 Secure-EL1 and executing the `BPIALL` instruction. This is achieved by using 3 vector tables. There is the runtime vector table which is used to handle exceptions and 2 additional tables which are required to implement this workaround. The additional tables are `vbar0` and `vbar1`. The sequence of events for handling a single exception is as follows: 1) Install vector table `vbar0` which saves the CPU context on entry to EL3 and sets up the Secure-EL1 context to execute in AArch32 mode with the MMU disabled and I$ enabled. This is the default vector table. 2) Before doing an ERET into Secure-EL1, switch vbar to point to another vector table `vbar1`. This is required to restore EL3 state when returning from the workaround, before proceeding with normal EL3 exception handling. 3) While in Secure-EL1, the `BPIALL` instruction is executed and an SMC call back to EL3 is performed. 4) On entry to EL3 from Secure-EL1, the saved context from step 1) is restored. The vbar is switched to point to `vbar0` in preparation to handle further exceptions. Finally a branch to the runtime vector table entry is taken to complete the handling of the original exception. This workaround is enabled by default on the affected CPUs. NOTE ==== There are 4 different stubs in Secure-EL1. Each stub corresponds to an exception type such as Sync/IRQ/FIQ/SError. Each stub will move a different value in `R0` before doing an SMC call back into EL3. Without this piece of information it would not be possible to know what the original exception type was as we cannot use `ESR_EL3` to distinguish between IRQs and FIQs. Change-Id: I90b32d14a3735290b48685d43c70c99daaa4b434 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
2017-12-18 13:46:21 +00:00
BL31_SOURCES += lib/cpus/aarch64/workaround_cve_2017_5715_mmu.S \
lib/cpus/aarch64/workaround_cve_2017_5715_bpiall.S
Workaround for CVE-2017-5715 on Cortex A57 and A72 Invalidate the Branch Target Buffer (BTB) on entry to EL3 by disabling and enabling the MMU. To achieve this without performing any branch instruction, a per-cpu vbar is installed which executes the workaround and then branches off to the corresponding vector entry in the main vector table. A side effect of this change is that the main vbar is configured before any reset handling. This is to allow the per-cpu reset function to override the vbar setting. This workaround is enabled by default on the affected CPUs. Change-Id: I97788d38463a5840a410e3cea85ed297a1678265 Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
2017-11-30 14:53:53 +00:00
endif
Remove vpath usage in makefiles Remove all usage of the vpath keyword in makefiles as it was prone to mistakes. Specify the relative paths to source files instead. Also reorder source files in makefiles alphabetically. Fixes ARM-software/tf-issues#121 Change-Id: Id15f60655444bae60e0e2165259efac71a50928b
2014-04-15 18:20:09 +01:00
BL31_LINKERFILE := bl31/bl31.ld.S
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
2014-05-09 11:07:09 +01:00
Miscellaneous doc fixes for v1.2 Change-Id: I6f49bd779f2a4d577c6443dd160290656cdbc59b
2015-12-17 13:58:58 +00:00
# Flag used to indicate if Crash reporting via console should be included
Remove dashes from image names: 'BL3-x' --> 'BL3x' This patch removes the dash character from the image name, to follow the image terminology in the Trusted Firmware Wiki page: https://github.com/ARM-software/arm-trusted-firmware/wiki Changes apply to output messages, comments and documentation. non-ARM platform files have been left unmodified. Change-Id: Ic2a99be4ed929d52afbeb27ac765ceffce46ed76
2015-12-14 09:35:25 +00:00
# in BL31. This defaults to being present in DEBUG builds only
Make the BL3-1 crash reporting optional This patch makes the console crash dump of processor register state optional based on the CRASH_REPORTING make variable. This defaults to only being enabled for DEBUG builds. This can be overridden by setting a different value in the platform makefile or on the make command line. Change-Id: Icfa1b2d7ff0145cf0a85e8ad732f9cee7e7e993f
2014-06-03 11:50:53 +01:00
ifndef CRASH_REPORTING
CRASH_REPORTING := $(DEBUG)
endif
$(eval $(call assert_boolean,CRASH_REPORTING))
BL31: Introduce Exception Handling Framework EHF is a framework that allows dispatching of EL3 interrupts to their respective handlers in EL3. This framework facilitates the firmware-first error handling policy in which asynchronous exceptions may be routed to EL3. Such exceptions may be handed over to respective exception handlers. Individual handlers might further delegate exception handling to lower ELs. The framework associates the delegated execution to lower ELs with a priority value. For interrupts, this corresponds to the priorities programmed in GIC; for other types of exceptions, viz. SErrors or Synchronous External Aborts, individual dispatchers shall explicitly associate delegation to a secure priority. In order to prevent lower priority interrupts from preempting higher priority execution, the framework provides helpers to control preemption by virtue of programming Priority Mask register in the interrupt controller. This commit allows for handling interrupts targeted at EL3. Exception handlers own interrupts by assigning them a range of secure priorities, and registering handlers for each priority range it owns. Support for exception handling in BL31 image is enabled by setting the build option EL3_EXCEPTION_HANDLING=1. Documentation to follow. NOTE: The framework assumes the priority scheme supported by platform interrupt controller is compliant with that of ARM GIC architecture (v2 or later). Change-Id: I7224337e4cea47c6ca7d7a4ca22a3716939f7e42 Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-09-22 08:32:10 +01:00
$(eval $(call assert_boolean,EL3_EXCEPTION_HANDLING))
BL31: Add SDEI dispatcher The implementation currently supports only interrupt-based SDEI events, and supports all interfaces as defined by SDEI specification version 1.0 [1]. Introduce the build option SDEI_SUPPORT to include SDEI dispatcher in BL31. Update user guide and porting guide. SDEI documentation to follow. [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf Change-Id: I758b733084e4ea3b27ac77d0259705565842241a Co-authored-by: Yousuf A <yousuf.sait@arm.com> Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-10-16 08:43:14 +01:00
$(eval $(call assert_boolean,SDEI_SUPPORT))
BL31: Introduce Exception Handling Framework EHF is a framework that allows dispatching of EL3 interrupts to their respective handlers in EL3. This framework facilitates the firmware-first error handling policy in which asynchronous exceptions may be routed to EL3. Such exceptions may be handed over to respective exception handlers. Individual handlers might further delegate exception handling to lower ELs. The framework associates the delegated execution to lower ELs with a priority value. For interrupts, this corresponds to the priorities programmed in GIC; for other types of exceptions, viz. SErrors or Synchronous External Aborts, individual dispatchers shall explicitly associate delegation to a secure priority. In order to prevent lower priority interrupts from preempting higher priority execution, the framework provides helpers to control preemption by virtue of programming Priority Mask register in the interrupt controller. This commit allows for handling interrupts targeted at EL3. Exception handlers own interrupts by assigning them a range of secure priorities, and registering handlers for each priority range it owns. Support for exception handling in BL31 image is enabled by setting the build option EL3_EXCEPTION_HANDLING=1. Documentation to follow. NOTE: The framework assumes the priority scheme supported by platform interrupt controller is compliant with that of ARM GIC architecture (v2 or later). Change-Id: I7224337e4cea47c6ca7d7a4ca22a3716939f7e42 Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-09-22 08:32:10 +01:00
Make the BL3-1 crash reporting optional This patch makes the console crash dump of processor register state optional based on the CRASH_REPORTING make variable. This defaults to only being enabled for DEBUG builds. This can be overridden by setting a different value in the platform makefile or on the make command line. Change-Id: Icfa1b2d7ff0145cf0a85e8ad732f9cee7e7e993f
2014-06-03 11:50:53 +01:00
$(eval $(call add_define,CRASH_REPORTING))
BL31: Introduce Exception Handling Framework EHF is a framework that allows dispatching of EL3 interrupts to their respective handlers in EL3. This framework facilitates the firmware-first error handling policy in which asynchronous exceptions may be routed to EL3. Such exceptions may be handed over to respective exception handlers. Individual handlers might further delegate exception handling to lower ELs. The framework associates the delegated execution to lower ELs with a priority value. For interrupts, this corresponds to the priorities programmed in GIC; for other types of exceptions, viz. SErrors or Synchronous External Aborts, individual dispatchers shall explicitly associate delegation to a secure priority. In order to prevent lower priority interrupts from preempting higher priority execution, the framework provides helpers to control preemption by virtue of programming Priority Mask register in the interrupt controller. This commit allows for handling interrupts targeted at EL3. Exception handlers own interrupts by assigning them a range of secure priorities, and registering handlers for each priority range it owns. Support for exception handling in BL31 image is enabled by setting the build option EL3_EXCEPTION_HANDLING=1. Documentation to follow. NOTE: The framework assumes the priority scheme supported by platform interrupt controller is compliant with that of ARM GIC architecture (v2 or later). Change-Id: I7224337e4cea47c6ca7d7a4ca22a3716939f7e42 Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-09-22 08:32:10 +01:00
$(eval $(call add_define,EL3_EXCEPTION_HANDLING))
BL31: Add SDEI dispatcher The implementation currently supports only interrupt-based SDEI events, and supports all interfaces as defined by SDEI specification version 1.0 [1]. Introduce the build option SDEI_SUPPORT to include SDEI dispatcher in BL31. Update user guide and porting guide. SDEI documentation to follow. [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0054a/ARM_DEN0054A_Software_Delegated_Exception_Interface.pdf Change-Id: I758b733084e4ea3b27ac77d0259705565842241a Co-authored-by: Yousuf A <yousuf.sait@arm.com> Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-10-16 08:43:14 +01:00
$(eval $(call add_define,SDEI_SUPPORT))