linux-kernel - Re: [PATCH v4 12/13] riscv: KVM: Switch has_svinval() to riscv_has_extension

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Message-ID: <CAAhSdy3DmSt1-i5AoeOt0e9snD+P8XpazAUTr0LoNfFCuA3+pw@mail.gmail.com>
Date:   Fri, 27 Jan 2023 09:21:03 +0530
From:   Anup Patel <anup@...infault.org>
To:     Jisheng Zhang <jszhang@...nel.org>
Cc:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Atish Patra <atishp@...shpatra.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Andrew Jones <ajones@...tanamicro.com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, kvm-riscv@...ts.infradead.org,
        Guo Ren <guoren@...nel.org>
Subject: Re: [PATCH v4 12/13] riscv: KVM: Switch has_svinval() to riscv_has_extension_unlikely()

On Sun, Jan 15, 2023 at 9:30 PM Jisheng Zhang <jszhang@...nel.org> wrote:
>
> From: Andrew Jones <ajones@...tanamicro.com>
>
> Switch has_svinval() from static branch to the new helper
> riscv_has_extension_unlikely().
>
> Signed-off-by: Andrew Jones <ajones@...tanamicro.com>
> Reviewed-by: Guo Ren <guoren@...nel.org>

For KVM RISC-V:
Acked-by: Anup Patel <anup@...infault.org>

Regards,
Anup

> ---
>  arch/riscv/kvm/tlb.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/riscv/kvm/tlb.c b/arch/riscv/kvm/tlb.c
> index 309d79b3e5cd..aa3da18ad873 100644
> --- a/arch/riscv/kvm/tlb.c
> +++ b/arch/riscv/kvm/tlb.c
> @@ -15,8 +15,7 @@
>  #include <asm/hwcap.h>
>  #include <asm/insn-def.h>
>
> -#define has_svinval()  \
> -       static_branch_unlikely(&riscv_isa_ext_keys[RISCV_ISA_EXT_KEY_SVINVAL])
> +#define has_svinval()  riscv_has_extension_unlikely(RISCV_ISA_EXT_SVINVAL)
>
>  void kvm_riscv_local_hfence_gvma_vmid_gpa(unsigned long vmid,
>                                           gpa_t gpa, gpa_t gpsz,
> --
> 2.38.1
>