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Re: [PATCH v2 00/22] QEMU RISC-V AIA support
From: |
Bin Meng |
Subject: |
Re: [PATCH v2 00/22] QEMU RISC-V AIA support |
Date: |
Sat, 4 Sep 2021 21:51:20 +0800 |
On Thu, Sep 2, 2021 at 7:26 PM Anup Patel <anup.patel@wdc.com> wrote:
>
> 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:
> https://github.com/riscv/riscv-aia/releases/download/0.2-draft.24/riscv-interrupts-024.pdf
>
> This series adds RISC-V AIA support in QEMU which includes emulating all
> AIA local CSRs, APLIC, and IMSIC. Only AIA local interrupt filtering is
> not implemented because we don't have any local interrupt greater than 12.
>
> To enable AIA in QEMU, use one of the following:
> 1) Only AIA local interrupt CSRs: Pass "x-aia=true" as CPU paramenter
> in the QEMU command-line
> 2) Only APLIC for virt machine: Pass "aia=aplic" as machine parameter
> in the QEMU command-line
> 3) Both APLIC and IMSIC for virt machine: Pass "aia=aplic-imsic" as
> machine parameter in the QEMU command-line
> 4) Both APLIC and IMSIC with 2 guest files for virt machine: Pass
> "aia=aplic-imsic,aia-guests=2" as machine parameter in the QEMU
> command-line
>
> To test series, we require OpenSBI and Linux with AIA support which can
> be found in riscv_aia_v1 branch at:
> https://github.com/avpatel/opensbi.git
> https://github.com/avpatel/linux.git
>
> Changes since v1:
> - Revamped whole series and created more granular patches
> - Added HGEIE and HGEIP CSR emulation for H-extension
> - Added APLIC emulation
> - Added IMSIC emulation
>
Where is v1 of this series? It seems I cannot find it on the ML.
Regards,
Bin
- [PATCH v2 16/22] hw/riscv: virt: Use AIA INTC compatible string when available, (continued)
- [PATCH v2 16/22] hw/riscv: virt: Use AIA INTC compatible string when available, Anup Patel, 2021/09/02
- [PATCH v2 17/22] target/riscv: Allow users to force enable AIA CSRs in HART, Anup Patel, 2021/09/02
- [PATCH v2 19/22] hw/riscv: virt: Add optional AIA APLIC support to virt machine, Anup Patel, 2021/09/02
- [PATCH v2 18/22] hw/intc: Add RISC-V AIA APLIC device emulation, Anup Patel, 2021/09/02
- [PATCH v2 20/22] hw/intc: Add RISC-V AIA IMSIC device emulation, Anup Patel, 2021/09/02
- [PATCH v2 21/22] hw/riscv: virt: Add optional AIA IMSIC support to virt machine, Anup Patel, 2021/09/02
- [PATCH v2 22/22] docs/system: riscv: Document AIA options for virt machine, Anup Patel, 2021/09/02
- Re: [PATCH v2 00/22] QEMU RISC-V AIA support,
Bin Meng <=