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Re: [RFC PATCH 2/5] hw/intc: Add Nuclei ECLIC device

From: Wang Junqiang
Subject: Re: [RFC PATCH 2/5] hw/intc: Add Nuclei ECLIC device
Date: Tue, 11 May 2021 11:18:32 +0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0

On 2021/5/10 下午1:26, Bin Meng wrote:
On Mon, May 10, 2021 at 10:27 AM Bin Meng <bmeng.cn@gmail.com> wrote:

On Mon, May 10, 2021 at 10:21 AM Alistair Francis <alistair23@gmail.com> wrote:

On Fri, May 7, 2021 at 11:24 PM wangjunqiang <wangjunqiang@iscas.ac.cn> wrote:

This patch provides an implementation of Nuclei ECLIC Device.
Nuclei processor core have been equipped with an Enhanced Core Local
Interrupt Controller (ECLIC), which is optimized based on the RISC-V
standard CLIC, to manage all interrupt sources.



There are patches on the QEMU list adding support for the CLIC. How
different is the ECLIC from the CLIC? Could you use the CLIC as a
starting point instead of implementing a new interrupt controller?

That's my thought too when I saw this patch at first.

A better way is to scandalize the CLIC support in QEMU first, then we

Sorry for the typo. I meant to say: standardize the CLIC support

will see how Nuclei's eCLIC could be built on top of that. Thanks!


I agree with both of you.the CLIC support in QEMU first. I read the patch of clic, and there is no problem with compatibility in the target/riscv directory.I will split eclic in next version. Thanks

Wang Junqiang

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