Re: [PATCH v3 6/8] RISC-V: KVM: Add ONE_REG interface for AIA CSRs

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On Mon, Apr 03, 2023 at 05:34:57PM +0530, Anup Patel wrote:
> On Mon, Apr 3, 2023 at 5:01 PM Andrew Jones <ajones@xxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxxx>
> > > ---
> > >  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?

It's probably best if neither depend on each other, since they're
independent, but otherwise the order doesn't matter. It'd be nice to call
the order out in the cover letter to give patchwork a chance at automatic
build testing, though. To call it out, I believe adding

Based-on: 20230401112730.2105240-1-apatel@xxxxxxxxxxxxxxxx

to the cover letter should work.

Thanks,
drew



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