- 01 Apr, 2019 3 commits
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Ambroise Vincent authored
Fix variable shadowing warnings and prevent code duplication. Change-Id: Idb29cc95d6b6943bc012d7bd430afa0e4a7cbf8c Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
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Ambroise Vincent authored
Improved support for W=2 compilation flag by solving some nested-extern and sign-compare warnings. The libraries are compiling with warnings (which turn into errors with the Werror flag). Outside of libraries, some warnings cannot be fixed. Change-Id: I06b1923857f2a6a50e93d62d0274915b268cef05 Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
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Ambroise Vincent authored
Improved support for W=1 compilation flag by solving missing-prototypes and old-style-definition warnings. The libraries are compiling with warnings (which turn into errors with the Werror flag). Outside of libraries, some warnings cannot be fixed without heavy structural changes. Change-Id: I1668cf99123ac4195c2a6a1d48945f7a64c67f16 Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
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- 14 Feb, 2019 1 commit
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Antonio Nino Diaz authored
Since commit 01fc1c24 ("BL31: Use helper function to save registers in SMC handler") all the general-purpose registers are saved when entering EL3. It isn't needed to save them here. Change-Id: Ic540a5441b89b70888da587ab8fc3b2508cef8cc Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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- 08 Feb, 2019 1 commit
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Antonio Nino Diaz authored
Instead of having a custom implementation of setjmp() and longjmp() it is better to follow the C standard. The comments in setjmp.h are no longer needed as there are no deviations from the expected one, so they have been removed. All SDEI code that relied on them has been fixed to use the new function prototypes and structs. Change-Id: I6cd2e21cb5a5bcf81ba12283f2e4c067bd5172ca Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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- 30 Jan, 2019 1 commit
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Antonio Nino Diaz authored
This reverts commit 2f370465 ("Add support for the SMC Calling Convention 2.0"). SMCCC v2.0 is no longer required for SPM, and won't be needed in the future. Removing it makes the SMC handling code less complicated. The SPM implementation based on SPCI and SPRT was using it, but it has been adapted to SMCCC v1.0. Change-Id: I36795b91857b2b9c00437cfbfed04b3c1627f578 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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- 22 Jan, 2019 2 commits
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Antonio Nino Diaz authored
This implementation is no longer deprecated. Change-Id: I68552d0fd5ba9f08fad4345e4657e8e3c5362a36 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
The SPM implementation based on MM is going to be kept for the foreseeable future. Change-Id: I11e96778a4f52a1aa803e7e048d9a7cb24a53954 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com> Acked-by: Sumit Garg <sumit.garg@linaro.org>
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- 15 Jan, 2019 3 commits
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Ard Biesheuvel authored
Registered init handlers return a boolean int, not a return code, so convert the result from the SPM init call before returning it. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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Ard Biesheuvel authored
Permit unaligned accesses while executing the secure partition payload, so that we don't have to modify existing code that we will host there. (The UEFI spec explicitly permits unaligned accesses) Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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Paul Beesley authored
Corrects typos in core code, documentation files, drivers, Arm platforms and services. None of the corrections affect code; changes are limited to comments and other documentation. Change-Id: I5c1027b06ef149864f315ccc0ea473e2a16bfd1d Signed-off-by: Paul Beesley <paul.beesley@arm.com>
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- 08 Jan, 2019 2 commits
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Ard Biesheuvel authored
Expose the timer registers that are accessible at EL0 per the architecture to the SPM payload running in secure EL0. Note that this requires NS_TIMER_SWITCH to be enable for all users of this code. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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Ard Biesheuvel authored
Update some asserts that refer to #defines that only occur in ARM platforms, preventing this code to be used on other platforms. Instead, use a platform agnostic name, and update all the existing users. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
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- 04 Jan, 2019 1 commit
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Antonio Nino Diaz authored
Enforce full include path for includes. Deprecate old paths. The following folders inside include/lib have been left unchanged: - include/lib/cpus/${ARCH} - include/lib/el3_runtime/${ARCH} The reason for this change is that having a global namespace for includes isn't a good idea. It defeats one of the advantages of having folders and it introduces problems that are sometimes subtle (because you may not know the header you are actually including if there are two of them). For example, this patch had to be created because two headers were called the same way: e0ea0928 ("Fix gpio includes of mt8173 platform to avoid collision."). More recently, this patch has had similar problems: 46f9b2c3 ("drivers: add tzc380 support"). This problem was introduced in commit 4ecca339 ("Move include and source files to logical locations"). At that time, there weren't too many headers so it wasn't a real issue. However, time has shown that this creates problems. Platforms that want to preserve the way they include headers may add the removed paths to PLAT_INCLUDES, but this is discouraged. Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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- 11 Dec, 2018 17 commits
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Antonio Nino Diaz authored
Rename files prefixed by sp_ to spm_. Change-Id: Ie3016a4c4ac5987fe6fdd734c6b470c60954e23d Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Also, add a disclaimer to explain that the current implementation of SPM is a prototype that is going to undergo a lot of rework. Change-Id: I303c1e61c51d9f286cc599fea565fc9ba5a996bf Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
The old SMCs SP_MEMORY_ATTRIBUTES_{GET,SET}_AARCH64 have been removed in favour of SPRT_MEMORY_PERM_ATTR_{GET,SET}_AARCH64. Change-Id: Idb93cfa5461d0098df941037c5653f7c44b65227 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Change-Id: I1fdc2285a3f6517a715ad6159322543fd5a37a37 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Note that the arguments passed during the SMC call don't comply with the SPCI specifications. This will be fixed in following patches, but it is needed to implement a few more SPCI SMCs to be able to do it. The current code allows us to start testing it. Change-Id: Ic13dcc54c40327df03be1b0f52e8a44f468f06b4 Co-authored-by: Jean-Paul Etienne <jean-paul.etienne@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
This buffer is where all the responses from Secure Partitions are stored until they are requested. Change-Id: Iafeb8f0848c5ff6f3e187060cd3a47702484dc45 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Blocking calls can only succeed if the target Secure Partition is idle. Change-Id: Iabeaa0b8d3e653fd8581fa086758936abfc1c772 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Note that the arguments passed during the SMC call don't comply with the SPCI specifications. This will be fixed in following patches, but it is needed to implement a few more SPCI SMCs to be able to do it. The current code allows us to start testing it. Change-Id: Ief0e75d072b311737fcdb0c6a60ba5b7406a9ee5 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Change-Id: If57ec9cc0791f49d9ade83dff9d24ef9047963a8 Co-authored-by: Jean-Paul Etienne <jean-paul.etienne@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Introduce SMCs that open and close handles according to the SPCI specification. Change-Id: I65f365f15612e01aa445e783e96e48ae275c39fd Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Change-Id: I2ae9b3bb686c41b2e138132a7bed107925ac861e Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Change-Id: Ib7c2529b85bb5930d44907edfc8ead13d3b1ef4d Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Change-Id: I6673a5f8c2f6afa7780483e0ce8d4dad4c8dc8ea Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Remove interfaces based on MM_COMMUNICATE. Change-Id: I628c884b91d9f4758269ea2c4dedc37a66bb93cf Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
SPM needs to map a number of regions on behalf of the secure partition. Previously, it used to get a list of them from platform code using the plat_get_secure_partition_mmap() API. Now it gets them from the resource description structure. The SPM<->SP shared buffer is mapped dynamically at EL3. This buffer is used to pass information between SPM and SP, so it must be mapped at EL3 as well in order to be used by SPM. Dynamic translation tables have been enabled when the Trusted Firmware is compiled with SPM support. Change-Id: I64ad335e931661812a0a60558e60372e1e5e6b72 Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Read entrypoint of the Secure Partition from the resource description struct. Change-Id: Ie693c7b4d4fecafd85b6934d9d8c4232efb1dc55 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
Load SP and RD from package instead of relying on RD being already loaded in memory and the SP being loaded as a BL32 image. Change-Id: I18d4fbf4597656c6a7e878e1d7c01a8a324f3f8a Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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- 10 Dec, 2018 3 commits
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Antonio Nino Diaz authored
This information is retrieved from the resource description now. Change-Id: Iaae23945eb2c45305cdc6442853e42f4e04fe094 Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
This information is defined by the Secure Partition in the resource description. Change-Id: Ia7db90c5de8360a596106880d3f6a632a88d3ea8 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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Antonio Nino Diaz authored
The current SPM is a prototype that only supports one secure partition in EL0. The objective of SPM is to have multiple partitions. The current MM interface isn't adequate for this, so it is needed to modify heavily the code to add proper support for it. However, there are platforms which are already using this (like SGI) and removing the code would break it. For this reason, the current SPM code has been duplicated in order to temporarily preserve compatibility. All new improvements/changes to SPM will be done in the non-deprecated copy, that may change without notice. The new build option SPM_DEPRECATED has been introduced to select the SPM implementation. It defaults to 1, that selects the deprecated SPM. Change-Id: Ic9f80b53b450e97b4d3f47e4ef4a138ee8d87443 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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- 26 Nov, 2018 1 commit
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Jeenu Viswambharan authored
Secure world execution nearly always expect a controlled exit to Non-secure world. SDEI interrupts, although targets EL3, occur on behalf of Non-secure world, and may have higher priority than Secure world interrupts. Therefore they might preempt Secure execution, and yield execution to Non-secure SDEI handler. Upon completion of SDEI event handling (regardless of whether it's COPLETE or COMPLETE_AND_RESUME), we must resume Secure execution if it was preempted. Change-Id: I6edd991032588588427ba2fe6c3d7668f7080e3d Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
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- 14 Nov, 2018 1 commit
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Sughosh Ganu authored
The current secure partition design mandates that a) at a point, only a single core can be executing in the secure partition, and b) a core cannot be preempted by an interrupt while executing in secure partition. Ensure this by activating the SPM priority prior to entering the parition. Deactivate the priority on return from the partition. Change-Id: Icb3473496d16b733564592eef06304a1028e4f5c Signed-off-by: Sughosh Ganu <sughosh.ganu@arm.com>
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- 08 Nov, 2018 1 commit
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Antonio Nino Diaz authored
All identifiers, regardless of use, that start with two underscores are reserved. This means they can't be used in header guards. The style that this project is now to use the full name of the file in capital letters followed by 'H'. For example, for a file called "uart_example.h", the header guard is UART_EXAMPLE_H. The exceptions are files that are imported from other projects: - CryptoCell driver - dt-bindings folders - zlib headers Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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- 31 Oct, 2018 1 commit
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Varun Wadekar authored
This patch includes context.h from sdei_private.h to fix the following compilation errors: <snip> In file included from services/std_svc/sdei/sdei_event.c:9:0: services/std_svc/sdei/sdei_private.h: In function 'sdei_client_el': services/std_svc/sdei/sdei_private.h:164:2: error: unknown type name 'cpu_context_t' cpu_context_t *ns_ctx = cm_get_context(NON_SECURE); ^ services/std_svc/sdei/sdei_private.h:165:2: error: unknown type name 'el3_state_t' el3_state_t *el3_ctx = get_el3state_ctx(ns_ctx); ^ services/std_svc/sdei/sdei_private.h:165:2: error: implicit declaration of function 'get_el3state_ctx' [-Werror=implicit-function-declaration] services/std_svc/sdei/sdei_private.h:165:25: error: initialization makes pointer from integer without a cast [-Werror] el3_state_t *el3_ctx = get_el3state_ctx(ns_ctx); ^ services/std_svc/sdei/sdei_private.h:167:2: error: implicit declaration of function 'read_ctx_reg' [-Werror=implicit-function-declaration] return ((read_ctx_reg(el3_ctx, CTX_SCR_EL3) & SCR_HCE_BIT) != 0U) ? ^ services/std_svc/sdei/sdei_private.h:167:33: error: 'CTX_SCR_EL3' undeclared (first use in this function) return ((read_ctx_reg(el3_ctx, CTX_SCR_EL3) & SCR_HCE_BIT) != 0U) ? ^ services/std_svc/sdei/sdei_private.h:167:33: note: each undeclared identifier is reported only once for each function it appears in cc1: all warnings being treated as errors <snip> Change-Id: Id0cad56accf81b19cb0d301784f3f086dd052722 Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
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- 07 Sep, 2018 1 commit
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Jeenu Viswambharan authored
The specification requires that, after wakeup from a CPU suspend, the dispatcher must mask all events on the CPU. This patch adds the feature to the SDEI dispatcher by subscribing to the PSCI suspend to power down event, and masking all events on the PE. Change-Id: I9fe1d1bc2a58379ba7bba953a8d8b275fc18902c Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
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- 22 Aug, 2018 1 commit
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Antonio Nino Diaz authored
The codebase was using non-standard headers. It is needed to replace them by the correct ones so that we can use the new libc headers. Change-Id: I530f71d9510cb036e69fe79823c8230afe890b9d Acked-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
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