linux-kernel - Re: [PATCH v8 08/14] arm64: tlb: Implement __flush_s2_tlb_range

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Date:   Fri, 11 Aug 2023 11:16:06 +0800
From:   Shaoqin Huang <shahuang@...hat.com>
To:     Raghavendra Rao Ananta <rananta@...gle.com>,
        Oliver Upton <oliver.upton@...ux.dev>,
        Marc Zyngier <maz@...nel.org>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Huacai Chen <chenhuacai@...nel.org>,
        Zenghui Yu <yuzenghui@...wei.com>,
        Anup Patel <anup@...infault.org>,
        Atish Patra <atishp@...shpatra.org>,
        Jing Zhang <jingzhangos@...gle.com>,
        Reiji Watanabe <reijiw@...gle.com>,
        Colton Lewis <coltonlewis@...gle.com>,
        David Matlack <dmatlack@...gle.com>,
        Fuad Tabba <tabba@...gle.com>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
        linux-mips@...r.kernel.org, kvm-riscv@...ts.infradead.org,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Subject: Re: [PATCH v8 08/14] arm64: tlb: Implement __flush_s2_tlb_range_op()



On 8/9/23 07:13, Raghavendra Rao Ananta wrote:
> Define __flush_s2_tlb_range_op(), as a wrapper over
> __flush_tlb_range_op(), for stage-2 specific range-based TLBI
> operations that doesn't necessarily have to deal with 'asid'
> and 'tlbi_user' arguments.
> 
> Signed-off-by: Raghavendra Rao Ananta <rananta@...gle.com>
Reviewed-by: Shaoqin Huang <shahuang@...hat.com>
> ---
>   arch/arm64/include/asm/tlbflush.h | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
> index b9475a852d5be..93f4b397f9a12 100644
> --- a/arch/arm64/include/asm/tlbflush.h
> +++ b/arch/arm64/include/asm/tlbflush.h
> @@ -340,6 +340,9 @@ do {									\
>   	}								\
>   } while (0)
>   
> +#define __flush_s2_tlb_range_op(op, start, pages, stride, tlb_level) \
> +	__flush_tlb_range_op(op, start, pages, stride, 0, tlb_level, false)
> +
>   static inline void __flush_tlb_range(struct vm_area_struct *vma,
>   				     unsigned long start, unsigned long end,
>   				     unsigned long stride, bool last_level,

-- 
Shaoqin