linux-kernel - Re: [PATCH v7 0/4] KVM: arm64: Improve efficiency of stage2 page table

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Date:   Fri, 18 Jun 2021 12:38:27 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     linux-kernel@...r.kernel.org,
        Alexandru Elisei <alexandru.elisei@....com>,
        Will Deacon <will@...nel.org>, kvmarm@...ts.cs.columbia.edu,
        linux-arm-kernel@...ts.infradead.org, kvm@...r.kernel.org,
        Yanan Wang <wangyanan55@...wei.com>,
        Quentin Perret <qperret@...gle.com>
Cc:     Julien Thierry <julien.thierry.kdev@...il.com>,
        zhukeqian1@...wei.com, yuzenghui@...wei.com,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Gavin Shan <gshan@...hat.com>,
        Catalin Marinas <catalin.marinas@....com>,
        James Morse <james.morse@....com>, wanghaibin.wang@...wei.com
Subject: Re: [PATCH v7 0/4] KVM: arm64: Improve efficiency of stage2 page table

On Thu, 17 Jun 2021 18:58:20 +0800, Yanan Wang wrote:
> This series makes some efficiency improvement of guest stage-2 page
> table code, and there are some test results to quantify the benefit.
> 
> Description for this series:
> We currently uniformly permorm CMOs of D-cache and I-cache in function
> user_mem_abort before calling the fault handlers. If we get concurrent
> guest faults(e.g. translation faults, permission faults) or some really
> unnecessary guest faults caused by BBM, CMOs for the first vcpu are
> necessary while the others later are not.
> 
> [...]

Applied to next, thanks!

[1/4] KVM: arm64: Introduce two cache maintenance callbacks
      commit: 6204004de3160900435bdb4b9a2fb8749a9277d2
[2/4] KVM: arm64: Introduce mm_ops member for structure stage2_attr_data
      commit: a4d5ca5c7cd8fe85056b8cb838fbcb7e5a05f356
[3/4] KVM: arm64: Tweak parameters of guest cache maintenance functions
      commit: 378e6a9c78a02b4b609846aa0afccf34d3038977
[4/4] KVM: arm64: Move guest CMOs to the fault handlers
      commit: 25aa28691bb960a76f0cffd8862144a29487f6ff

Cheers,

	M.
-- 
Without deviation from the norm, progress is not possible.