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Add support for vendor-specific el3 service. SMCCC 1.5 introduces support for vendor-specific EL3 monitor calls. SMCCC Documentation reference: https://developer.arm.com/docs/den0028/latest Change-Id: Id8bc43842eecdb7a8a2ec7f31a631e88fe4fe0b4 Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
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1.3 KiB
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29 lines
1.3 KiB
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Vendor Specific EL3 Monitor Service Calls
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=========================================
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This document enumerates and describes the Vendor Specific EL3 Monitor Service
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Calls.
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These are Service Calls defined by the vendor of the EL3 Monitor.
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They are accessed via ``SMC`` ("SMC calls") instruction executed from Exception
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Levels below EL3. SMC calls for Vendor Specific EL3 Monitor Services:
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- Follow `SMC Calling Convention`_;
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- Use SMC function IDs that fall in the vendor-specific EL3 range, which are
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+---------------------------+--------------------------------------------------+
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| SMC Function Identifier | Service Type |
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+===========================+==================================================+
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| 0x87000000 - 0x8700FFFF | SMC32: Vendor Specific EL3 Monitor Service Calls |
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+---------------------------+--------------------------------------------------+
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| 0xC7000000 - 0xC700FFFF | SMC64: Vendor Specific EL3 Monitor Service Calls |
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+---------------------------+--------------------------------------------------+
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Source definitions for vendor-specific EL3 Monitor Service Calls are located in
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the ``ven_el3_svc.h`` header file.
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--------------
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*Copyright (c) 2024, Arm Limited and Contributors. All rights reserved.*
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.. _SMC Calling Convention: https://developer.arm.com/docs/den0028/latest
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