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[PATCH 0/4] AIA local interrupt CSR support

From: Anup Patel
Subject: [PATCH 0/4] AIA local interrupt CSR support
Date: Fri, 14 May 2021 20:02:38 +0530

The advanced interrupt architecture (AIA) extends the per-HART local
interrupt support. Along with this, it also adds IMSIC (MSI contrllor)
and Advanced PLIC (wired interrupt controller).

The latest AIA draft specification can be found here:

This series adds initial AIA support in QEMU which includes emulating all
AIA local CSR. To enable AIA in QEMU, we just need to pass "x-aia=true"
paramenter in "-cpu" QEMU command-line.

To test series, we require OpenSBI and Linux with AIA support which
can be found in riscv_aia_v1 branch at:

Anup Patel (4):
  target/riscv: Add defines for AIA local interrupt CSRs
  target/riscv: Add CPU feature for AIA CSRs
  target/riscv: Implement AIA local interrupt CSRs
  hw/riscv: virt: Use AIA INTC compatible string when available

 hw/riscv/virt.c           |   11 +-
 target/riscv/cpu.c        |   32 +-
 target/riscv/cpu.h        |   56 +-
 target/riscv/cpu_bits.h   |  128 +++++
 target/riscv/cpu_helper.c |  245 ++++++++-
 target/riscv/csr.c        | 1059 +++++++++++++++++++++++++++++++++++--
 target/riscv/machine.c    |   26 +-
 7 files changed, 1454 insertions(+), 103 deletions(-)


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