linux-kernel - Re: [PATCH v3 6/8] RISC-V: KVM: Add ONE

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Message-ID: <CAAhSdy1JEQBiO55iCy97arO63VjGc+NicUvvwzTpK97W97LmJg@mail.gmail.com>
Date:   Mon, 3 Apr 2023 17:34:57 +0530
From:   Anup Patel <anup@...infault.org>
To:     Andrew Jones <ajones@...tanamicro.com>
Cc:     Anup Patel <apatel@...tanamicro.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Atish Patra <atishp@...shpatra.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>, kvm@...r.kernel.org,
        kvm-riscv@...ts.infradead.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 6/8] RISC-V: KVM: Add ONE_REG interface for AIA CSRs

On Mon, Apr 3, 2023 at 5:01 PM Andrew Jones <ajones@...tanamicro.com> wrote:
>
> On Mon, Apr 03, 2023 at 03:03:08PM +0530, Anup Patel wrote:
> > We implement ONE_REG interface for AIA CSRs as a separate subtype
> > under the CSR ONE_REG interface.
> >
> > Signed-off-by: Anup Patel <apatel@...tanamicro.com>
> > ---
> >  arch/riscv/include/uapi/asm/kvm.h | 8 ++++++++
> >  arch/riscv/kvm/vcpu.c             | 8 ++++++++
> >  2 files changed, 16 insertions(+)
> >
> > diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h
> > index 182023dc9a51..cbc3e74fa670 100644
> > --- a/arch/riscv/include/uapi/asm/kvm.h
> > +++ b/arch/riscv/include/uapi/asm/kvm.h
> > @@ -79,6 +79,10 @@ struct kvm_riscv_csr {
> >       unsigned long scounteren;
> >  };
> >
> > +/* AIA CSR registers for KVM_GET_ONE_REG and KVM_SET_ONE_REG */
> > +struct kvm_riscv_aia_csr {
> > +};
> > +
> >  /* TIMER registers for KVM_GET_ONE_REG and KVM_SET_ONE_REG */
> >  struct kvm_riscv_timer {
> >       __u64 frequency;
> > @@ -107,6 +111,7 @@ enum KVM_RISCV_ISA_EXT_ID {
> >       KVM_RISCV_ISA_EXT_ZIHINTPAUSE,
> >       KVM_RISCV_ISA_EXT_ZICBOM,
> >       KVM_RISCV_ISA_EXT_ZBB,
>
> Looks like this patch is also based on "[PATCH] RISC-V: KVM: Allow Zbb
> extension for Guest/VM"

Yes, do you want me to change the order of dependency?

Regards,
Anup