linux-kernel - Re: [PATCH V5 21/21] KVM: compat: riscv: Prevent KVM

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Date:   Tue, 1 Feb 2022 21:14:56 +0530
From:   Anup Patel <anup@...infault.org>
To:     Guo Ren <guoren@...nel.org>, Paolo Bonzini <pbonzini@...hat.com>
Cc:     Palmer Dabbelt <palmer@...belt.com>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        liush <liush@...winnertech.com>, Wei Fu <wefu@...hat.com>,
        Drew Fustini <drew@...gleboard.org>,
        Wang Junqiang <wangjunqiang@...as.ac.cn>,
        Christoph Hellwig <hch@....de>,
        linux-arch <linux-arch@...r.kernel.org>,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        linux-csky@...r.kernel.org, linux-s390@...r.kernel.org,
        sparclinux@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-parisc@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        x86@...nel.org, Guo Ren <guoren@...ux.alibaba.com>,
        kvm-riscv@...ts.infradead.org, KVM General <kvm@...r.kernel.org>
Subject: Re: [PATCH V5 21/21] KVM: compat: riscv: Prevent KVM_COMPAT from
 being selected

+Paolo

On Tue, Feb 1, 2022 at 8:38 PM <guoren@...nel.org> wrote:
>
> From: Guo Ren <guoren@...ux.alibaba.com>
>
> Current riscv doesn't support the 32bit KVM API. Let's make it
> clear by not selecting KVM_COMPAT.
>
> Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
> Signed-off-by: Guo Ren <guoren@...nel.org>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Anup Patel <anup@...infault.org>

This looks good to me.

Reviewed-by: Anup Patel <anup@...infault.org>

Regards,
Anup

> ---
>  virt/kvm/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig
> index f4834c20e4a6..a8c5c9f06b3c 100644
> --- a/virt/kvm/Kconfig
> +++ b/virt/kvm/Kconfig
> @@ -53,7 +53,7 @@ config KVM_GENERIC_DIRTYLOG_READ_PROTECT
>
>  config KVM_COMPAT
>         def_bool y
> -       depends on KVM && COMPAT && !(S390 || ARM64)
> +       depends on KVM && COMPAT && !(S390 || ARM64 || RISCV)
>
>  config HAVE_KVM_IRQ_BYPASS
>         bool
> --
> 2.25.1
>