diff options
| author | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2017-09-22 08:32:09 +0100 |
|---|---|---|
| committer | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2017-10-16 16:50:02 +0100 |
| commit | 8db978b5a8606a658c65b16fab7edd7a17c7c940 (patch) | |
| tree | bfef9510b0bbb1f8560a45a7ef760217d49ddab4 /docs/platform-interrupt-controller-API.rst | |
| parent | 74dce7fa6e42cab3aa54a9543e4a546c1450b2ae (diff) | |
GIC: Add API to raise secure SGI
API documentation updated.
Change-Id: I129725059299af6cc612bafa8d74817f779d7c4f
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
Diffstat (limited to 'docs/platform-interrupt-controller-API.rst')
| -rw-r--r-- | docs/platform-interrupt-controller-API.rst | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/docs/platform-interrupt-controller-API.rst b/docs/platform-interrupt-controller-API.rst index 3d46cf34..74291bca 100644 --- a/docs/platform-interrupt-controller-API.rst +++ b/docs/platform-interrupt-controller-API.rst @@ -200,6 +200,23 @@ For GICv2: ``INTR_TYPE_S_EL1`` maps to Group 0. Otherwise, ``INTR_TYPE_EL3`` maps to Group 0 interrupt. +Function: void plat_ic_raise_el3_sgi(int sgi_num, u_register_t target); [optional] +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +:: + + Argument : int + Argument : u_register_t + Return : void + +This API should raise an EL3 SGI. The first parameter, ``sgi_num``, specifies +the ID of the SGI. The second parameter, ``target``, must be the MPIDR of the +target PE. + +In case of ARM standard platforms using GIC, the implementation of the API +inserts barrier to make memory updates visible before raising SGI, then writes +to appropriate *SGI Register* in order to raise the EL3 SGI. + ---- *Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.* |