linux-kernel - Re: [RFC PATCH v2 0/2] kvm/arm64: Try stage2 block mapping for host device MMIO

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Message-ID: <1870563d-4da8-60d6-22e4-242ac820f5ba@huawei.com>
Date:   Wed, 31 Mar 2021 17:13:19 +0800
From:   Keqian Zhu <zhukeqian1@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <kvm@...r.kernel.org>,
        <kvmarm@...ts.cs.columbia.edu>, Will Deacon <will@...nel.org>,
        Marc Zyngier <maz@...nel.org>
CC:     Catalin Marinas <catalin.marinas@....com>,
        Mark Rutland <mark.rutland@....com>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Julien Thierry <julien.thierry.kdev@...il.com>,
        <wanghaibin.wang@...wei.com>, <jiangkunkun@...wei.com>,
        <yuzenghui@...wei.com>, <lushenming@...wei.com>
Subject: Re: [RFC PATCH v2 0/2] kvm/arm64: Try stage2 block mapping for host
 device MMIO

Kind ping...

On 2021/3/16 21:43, Keqian Zhu wrote:
> Hi all,
> 
> We have two pathes to build stage2 mapping for MMIO regions.
> 
> Create time's path and stage2 fault path.
> 
> Patch#1 removes the creation time's mapping of MMIO regions
> Patch#2 tries stage2 block mapping for host device MMIO at fault path
> 
> Thanks,
> Keqian
> 
> Keqian Zhu (2):
>   kvm/arm64: Remove the creation time's mapping of MMIO regions
>   kvm/arm64: Try stage2 block mapping for host device MMIO
> 
>  arch/arm64/kvm/mmu.c | 80 +++++++++++++++++++++++---------------------
>  1 file changed, 41 insertions(+), 39 deletions(-)
>