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Date: Fri, 5 Apr 2024 17:26:04 +0200
From: Andrew Jones <ajones@ventanamicro.com>
To: =?utf-8?B?Q2zDqW1lbnQgTMOpZ2Vy?= <cleger@rivosinc.com>
Cc: Jonathan Corbet <corbet@lwn.net>, 
	Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, 
	Albert Ou <aou@eecs.berkeley.edu>, Conor Dooley <conor@kernel.org>, Rob Herring <robh@kernel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Anup Patel <anup@brainfault.org>, Shuah Khan <shuah@kernel.org>, 
	Atish Patra <atishp@atishpatra.org>, linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org, 
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, kvm@vger.kernel.org, 
	kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org
Subject: Re: [PATCH 0/5] Add parsing for Zimop ISA extension
Message-ID: <20240405-091c6c174f023d74b434059d@orel>
References: <20240404103254.1752834-1-cleger@rivosinc.com>
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On Thu, Apr 04, 2024 at 12:32:46PM +0200, Cl?ment L?ger wrote:
> The Zimop ISA extension was ratified recently. This series adds support
> for parsing it from riscv,isa, hwprobe export and kvm support for
> Guest/VM.

I'm not sure we need this. Zimop by itself isn't useful, so I don't know
if we need to advertise it at all. When an extension comes along that
redefines some MOPs, then we'll advertise that extension, but the fact
Zimop is used for that extension is really just an implementation detail.

Thanks,
drew

> 
> Cl?ment L?ger (5):
>   dt-bindings: riscv: add Zimop ISA extension description
>   riscv: add ISA extension parsing for Zimop
>   riscv: hwprobe: export Zimop ISA extension
>   RISC-V: KVM: Allow Zimop extension for Guest/VM
>   KVM: riscv: selftests: Add Zimop extension to get-reg-list test
> 
>  Documentation/arch/riscv/hwprobe.rst                    | 4 ++++
>  Documentation/devicetree/bindings/riscv/extensions.yaml | 5 +++++
>  arch/riscv/include/asm/hwcap.h                          | 1 +
>  arch/riscv/include/uapi/asm/hwprobe.h                   | 1 +
>  arch/riscv/include/uapi/asm/kvm.h                       | 1 +
>  arch/riscv/kernel/cpufeature.c                          | 1 +
>  arch/riscv/kernel/sys_hwprobe.c                         | 1 +
>  arch/riscv/kvm/vcpu_onereg.c                            | 2 ++
>  tools/testing/selftests/kvm/riscv/get-reg-list.c        | 4 ++++
>  9 files changed, 20 insertions(+)
> 
> -- 
> 2.43.0
> 
> 
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