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Wed, 29 Jun 2022 11:30:32 +0100 Date: Wed, 29 Jun 2022 11:30:31 +0100 Message-ID: <87zghv2248.wl-maz@kernel.org> From: Marc Zyngier To: Yosry Ahmed Cc: Tejun Heo , Johannes Weiner , Zefan Li , James Morse , Alexandru Elisei , Suzuki K Poulose , Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , Andrew Morton , Michal Hocko , Roman Gushchin , Shakeel Butt , Oliver Upton , Huang@google.com, Shaoqin , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, linux-mm@kvack.org, Oliver Upton Subject: Re: [PATCH v6 4/4] KVM: arm64/mmu: count KVM s2 mmu usage in secondary pagetable stats In-Reply-To: <20220628220938.3657876-5-yosryahmed@google.com> References: <20220628220938.3657876-1-yosryahmed@google.com> <20220628220938.3657876-5-yosryahmed@google.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; 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dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf28.hostedemail.com: domain of maz@kernel.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=maz@kernel.org X-Rspamd-Server: rspam10 X-Rspam-User: X-HE-Tag: 1656498636-749016 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, 28 Jun 2022 23:09:38 +0100, Yosry Ahmed wrote: > > Count the pages used by KVM in arm64 for stage2 mmu in memory stats > under secondary pagetable stats (e.g. "SecPageTables" in /proc/meminfo) > to give better visibility into the memory consumption of KVM mmu in a > similar way to how normal user page tables are accounted. > > Signed-off-by: Yosry Ahmed > Reviewed-by: Oliver Upton Reviewed-by: Marc Zyngier M. -- Without deviation from the norm, progress is not possible.