linux-kernel - Re: [PATCH v3 0/6] ONE_REG interface for SBI FWFT extension

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Message-ID: <CAAhSdy1jAmCeqWoPi7QpuzW4stH6U-Z0pSHmyC93jBYbSr6_xw@mail.gmail.com>
Date: Mon, 8 Sep 2025 09:21:00 +0530
From: Anup Patel <anup@...infault.org>
To: Anup Patel <apatel@...tanamicro.com>
Cc: Atish Patra <atish.patra@...ux.dev>, Palmer Dabbelt <palmer@...belt.com>, 
	Paul Walmsley <paul.walmsley@...ive.com>, Alexandre Ghiti <alex@...ti.fr>, 
	Andrew Jones <ajones@...tanamicro.com>, Paolo Bonzini <pbonzini@...hat.com>, 
	Shuah Khan <shuah@...nel.org>, kvm@...r.kernel.org, kvm-riscv@...ts.infradead.org, 
	linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v3 0/6] ONE_REG interface for SBI FWFT extension

On Sat, Aug 23, 2025 at 9:30 PM Anup Patel <apatel@...tanamicro.com> wrote:
>
> This series adds ONE_REG interface for SBI FWFT extension implemented
> by KVM RISC-V. This was missed out in accepted SBI FWFT patches for
> KVM RISC-V.
>
> These patches can also be found in the riscv_kvm_fwft_one_reg_v3 branch
> at: https://github.com/avpatel/linux.git
>
> Changes since v2:
>  - Re-based on latest KVM RISC-V queue
>  - Improved FWFT ONE_REG interface to allow enabling/disabling each
>    FWFT feature from KVM userspace
>
> Changes since v1:
>  - Dropped have_state in PATCH4 as suggested by Drew
>  - Added Drew's Reviewed-by in appropriate patches
>
> Anup Patel (6):
>   RISC-V: KVM: Set initial value of hedeleg in kvm_arch_vcpu_create()
>   RISC-V: KVM: Introduce feature specific reset for SBI FWFT
>   RISC-V: KVM: Introduce optional ONE_REG callbacks for SBI extensions
>   RISC-V: KVM: Move copy_sbi_ext_reg_indices() to SBI implementation
>   RISC-V: KVM: Implement ONE_REG interface for SBI FWFT state
>   KVM: riscv: selftests: Add SBI FWFT to get-reg-list test

Queued this series for Linux-6.18

Regards,
Anup

>
>  arch/riscv/include/asm/kvm_vcpu_sbi.h         |  22 +-
>  arch/riscv/include/asm/kvm_vcpu_sbi_fwft.h    |   1 +
>  arch/riscv/include/uapi/asm/kvm.h             |  15 ++
>  arch/riscv/kvm/vcpu.c                         |   3 +-
>  arch/riscv/kvm/vcpu_onereg.c                  |  60 +----
>  arch/riscv/kvm/vcpu_sbi.c                     | 172 +++++++++++--
>  arch/riscv/kvm/vcpu_sbi_fwft.c                | 227 ++++++++++++++++--
>  arch/riscv/kvm/vcpu_sbi_sta.c                 |  63 +++--
>  .../selftests/kvm/riscv/get-reg-list.c        |  32 +++
>  9 files changed, 467 insertions(+), 128 deletions(-)
>
> --
> 2.43.0
>