Ssaia Extension

Implemented Version

1.0.0

Versions

1.0.0
Ratification date

2023-06

Ratification document

https://github.com/riscv/riscv-aia/releases/download/1.0/riscv-interrupts-1.0.pdf

Synopsis

Advanced Interrupt Architecture, S-mode extension

Parameters

This extension has the following implementation options:

HSTATEEN_AIA_TYPE

Behavior of the hstateen0.AIA bit:

  • 'rw': read-write

  • 'read-only-0': read-only, fixed to 0

  • 'read-only-1': read-only, fixed to 1

HSTATEEN_IMSIC_TYPE

Behavior of the hstateen0.IMSIC bit:

  • 'rw': read-write

  • 'read-only-0': read-only, fixed to 0

  • 'read-only-1': read-only, fixed to 1

MSTATEEN_AIA_TYPE

Behavior of the mstateen0.AIA bit:

  • 'rw': read-write

  • 'read-only-0': read-only, fixed to 0

  • 'read-only-1': read-only, fixed to 1

MSTATEEN_IMSIC_TYPE

Behavior of the mstateen0.IMSIC bit:

  • 'rw': read-write

  • 'read-only-0': read-only, fixed to 0

  • 'read-only-1': read-only, fixed to 1