Re: [PATCH v4 00/10] riscv: Add Zalasr ISA extension support

路旭
2025-11-19T15:57:54Z

Hi Paul,

I will continue with this work. And thanks for Andrea's feedback.

Best Regards,
Xu Lu

> From: "Paul Walmsley"<pjw@kernel.org>
> Date:  Wed, Nov 19, 2025, 23:42
> Subject:  Re: [PATCH v4 00/10] riscv: Add Zalasr ISA extension support
> To: <patchwork-bot+linux-riscv@kernel.org>
> Cc: "Xu Lu"<luxu.kernel@bytedance.com>, <linux-riscv@lists.infradead.org>, <corbet@lwn.net>, <paul.walmsley@sifive.com>, <palmer@dabbelt.com>, <aou@eecs.berkeley.edu>, <alex@ghiti.fr>, <robh@kernel.org>, <krzk+dt@kernel.org>, <conor+dt@kernel.org>, <will@kernel.org>, <peterz@infradead.org>, <boqun.feng@gmail.com>, <mark.rutland@arm.com>, <anup@brainfault.org>, <atish.patra@linux.dev>, <pbonzini@redhat.com>, <shuah@kernel.org>, <parri.andrea@gmail.com>, <ajones@ventanamicro.com>, <brs@rivosinc.com>, <guoren@kernel.org>, <linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>, <kvm@vger.kernel.org>, <kvm-riscv@lists.infradead.org>, <linux-kselftest@vger.kernel.org>, <apw@canonical.com>, <joe@perches.com>, <lukas.bulwahn@gmail.com>
> Folks,

>
> On Wed, 19 Nov 2025, patchwork-bot+linux-riscv@kernel.org wrote:

>
> > This series was applied to riscv/linux.git (for-next)

> > by Paul Walmsley <pjw@kernel.org>:

>
> This actually isn't true; I've only applied the first four patches (see

> below).

>
> > On Mon, 20 Oct 2025 12:20:46 +0800 you wrote:

> > > This patch adds support for the Zalasr ISA extension, which supplies the

> > > real load acquire/store release instructions.

> > >

> > > The specification can be found here:

> > > https://github.com/riscv/riscv-zalasr/blob/main/chapter2.adoc

> > >

> > > This patch seires has been tested with ltp on Qemu with Brensan's zalasr

> > > support patch[1].

> > >

> > > [...]

> >

> > Here is the summary with links:

> >   - [v4,01/10] riscv: Add ISA extension parsing for Zalasr

> >     https://git.kernel.org/riscv/c/0597b9c8627e

> >   - [v4,02/10] dt-bindings: riscv: Add Zalasr ISA extension description

> >     https://git.kernel.org/riscv/c/6e2a0ff70abe

> >   - [v4,03/10] riscv: hwprobe: Export Zalasr extension

> >     https://git.kernel.org/riscv/c/d5e20628a882

> >   - [v4,04/10] riscv: Introduce Zalasr instructions

> >     https://git.kernel.org/riscv/c/c4139ea6717c

> >   - [v4,05/10] riscv: Apply Zalasr to smp_load_acquire/smp_store_release

> >     (no matching commit)

> >   - [v4,06/10] riscv: Apply acquire/release semantics to arch_xchg/arch_cmpxchg operations

> >     (no matching commit)

> >   - [v4,07/10] riscv: Apply acquire/release semantics to arch_atomic operations

> >     (no matching commit)

> >   - [v4,08/10] riscv: Remove arch specific __atomic_acquire/release_fence

> >     (no matching commit)

> >   - [v4,09/10] RISC-V: KVM: Allow Zalasr extensions for Guest/VM

> >     (no matching commit)

> >   - [v4,10/10] RISC-V: KVM: selftests: Add Zalasr extensions to get-reg-list test

> >     (no matching commit)

>
> In terms of patches 5-8, we're still waiting for Xu Lu to update the

> patches based on Andrea's feedback.  Xu Lu, are you still planning to

> update these?

>
>
> - Paul
>