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Diffstat (limited to 'docs/components/secure-partition-manager.rst')
| -rw-r--r-- | docs/components/secure-partition-manager.rst | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/docs/components/secure-partition-manager.rst b/docs/components/secure-partition-manager.rst index f0caf89f7..8dc1c6136 100644 --- a/docs/components/secure-partition-manager.rst +++ b/docs/components/secure-partition-manager.rst @@ -1318,6 +1318,25 @@ A brief description of the events: direct request to SP2 by invoking FFA_RUN. - 9) SPMC resumes the pre-empted vCPU of SP2. +EL3 interrupt handling +~~~~~~~~~~~~~~~~~~~~~~ + +In GICv3 based systems, EL3 interrupts are configured as Group0 secure +interrupts. Execution traps to SPMC when a Group0 interrupt triggers while an +SP is running. Further, SPMC running at S-EL2 uses FFA_EL3_INTR_HANDLE ABI to +request EL3 platform firmware to handle a pending Group0 interrupt. +Similarly, SPMD registers a handler with interrupt management framework to +delegate handling of Group0 interrupt to the platform if the interrupt triggers +in normal world. + + - Platform hook + + - plat_spmd_handle_group0_interrupt + + SPMD provides platform hook to handle Group0 secure interrupts. In the + current design, SPMD expects the platform not to delegate handling to the + NWd (such as through SDEI) while processing Group0 interrupts. + Power management ---------------- @@ -1557,4 +1576,4 @@ Client <https://developer.arm.com/documentation/den0006/d/>`__ -------------- -*Copyright (c) 2020-2022, Arm Limited and Contributors. All rights reserved.* +*Copyright (c) 2020-2023, Arm Limited and Contributors. All rights reserved.* |