From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4FFABC43334 for ; Wed, 29 Jun 2022 10:30:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233336AbiF2Kai (ORCPT ); Wed, 29 Jun 2022 06:30:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229828AbiF2Kah (ORCPT ); Wed, 29 Jun 2022 06:30:37 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD0F23DDD7; Wed, 29 Jun 2022 03:30:36 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 8B619B8227C; Wed, 29 Jun 2022 10:30:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4ADA7C341C8; Wed, 29 Jun 2022 10:30:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656498634; bh=FWingHSiicpAR3nuU10lYv4eU+baMLYlpSa5drYSn54=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=MoC+YDJ3ltoGd49syVpPFS76B0w4Ai9FjIw+k7zrNavvqWXc9B14SZ/kTf1KbNIdL ZdjpELi4vH8X2q86nonqL0vvy+Mwhx9gOKQicN2pFXoKTlFRVMcdweCJQp3xC41ewU DWNpHzh3/akaC66ltPyjUfUFd/ApRyCibrC4be03PUlkxMTALSCMTGh0ET+eroEBDN foK6cJjRES98IZ+5jFtKn6947tsOrDbDev1WAaKaX54TCPY8xw5OB1SbZ3tVoSgmYW Zv07anQ2bUq4PQ8a2gQ8gSfq6Y71asIa4qNDuGC+ydS+ncnSNpSWYilQwESJsnmul2 Q/ecmAo3pNGEw== Received: from sofa.misterjones.org ([185.219.108.64] helo=why.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1o6Uxr-0042Tm-Ts; 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; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: yosryahmed@google.com, tj@kernel.org, hannes@cmpxchg.org, lizefan.x@bytedance.com, james.morse@arm.com, alexandru.elisei@arm.com, suzuki.poulose@arm.com, pbonzini@redhat.com, seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org, akpm@linux-foundation.org, mhocko@kernel.org, roman.gushchin@linux.dev, shakeelb@google.com, oupton@google.com, Huang@google.com, shaoqin.huang@intel.com, 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@linux.dev X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org 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.