From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7976923BE for ; Wed, 27 Dec 2023 00:25:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="RNW16Zt2" Received: by mail-pl1-f170.google.com with SMTP id d9443c01a7336-1d47fae33e0so18675ad.0 for ; Tue, 26 Dec 2023 16:25:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1703636732; x=1704241532; darn=vger.kernel.org; h=mime-version:references:message-id:in-reply-to:subject:cc:to:from :date:from:to:cc:subject:date:message-id:reply-to; bh=8yhvNEPy1OdHxiHajFepdZmy+iFIGCud+lbMtAIqjO0=; b=RNW16Zt25HZlvdgAj3JTlgY7UzNeT6dqABvLneLoxoT6r5i93Tp0RrDipmAgUte3SH Ohi9Ej4ZH6vkJw4CZbP6v6GnuFERbyT2Y1gR56FS1oZME3S7Gp5k2IKfzkR40+nO3YFb vNbMsdkOGTcGcLZ3eqEUepvsO77lTXhIsTde5OteRPQ+/0UnxiqBcvQV+naL7GBMFw/Z p5eXjpRwbmRch1E2QMFirvCZL/G9yKV34ZWGHeN5+8V6awa2rLLAHcqCM7GxiivyNVrs MS8Nm6299+VSrfHnhN2vyKO89PE+Oj17n/JJtm8ZgLrSksFE83kHkj+GEyJ0+9dcNynj 3Znw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703636732; x=1704241532; h=mime-version:references:message-id:in-reply-to:subject:cc:to:from :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=8yhvNEPy1OdHxiHajFepdZmy+iFIGCud+lbMtAIqjO0=; b=WXG9abcRRVVofwZUXuYS9stRk/ASyWBIP2gVvV9v/VQPqJNvFSsbA9FtTfY2giYpIi p2Lr0R+Sx//74912CxvW3nlY4/EkmDTjOHP4qiilIN2pcC+s6AQio6yu41fI+yLgse6w kI/v8j7Go0d9EEVnL7XiCZy7alf53t4ozpMlWVSGHGQ686PVCD+gDGepKX0wZRF8aO6R fV+wfJy9Ih/3hcQg9jrF1KoW63HAloTea8k8/KxSXBDM6h8Lytg1dAFo38autUc1gmUz ur0IX3p85U12e0q7+CItL+Hb58a+wvGtuMgc+ZDNWYv+aP2XUcGcRmVzTZnPd0qInx4C rONw== X-Gm-Message-State: AOJu0YxQzElSO/sTGnrsRiVVu7/49zkY6rwvSfgwIcTg6XULMl4YxgyZ dA+O/lUwx6+TCRXNFsp6m+ua2VrDtgKA X-Google-Smtp-Source: AGHT+IHfrTTFDhOmLPe/BcyhT6xcBiwDnUGm4X46zMrKWUIrGhjoY17pKeWHle6/bW8eRgBmSHtD6g== X-Received: by 2002:a17:902:f684:b0:1d4:55b3:465f with SMTP id l4-20020a170902f68400b001d455b3465fmr239910plg.25.1703636731663; Tue, 26 Dec 2023 16:25:31 -0800 (PST) Received: from [2620:0:1008:15:5a8c:89e6:ca2f:ea30] ([2620:0:1008:15:5a8c:89e6:ca2f:ea30]) by smtp.gmail.com with ESMTPSA id w7-20020a170902e88700b001d072365b87sm10636289plg.106.2023.12.26.16.25.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Dec 2023 16:25:31 -0800 (PST) Date: Tue, 26 Dec 2023 16:25:30 -0800 (PST) From: David Rientjes To: Pasha Tatashin cc: akpm@linux-foundation.org, alim.akhtar@samsung.com, alyssa@rosenzweig.io, asahi@lists.linux.dev, baolu.lu@linux.intel.com, bhelgaas@google.com, cgroups@vger.kernel.org, corbet@lwn.net, david@redhat.com, dwmw2@infradead.org, hannes@cmpxchg.org, heiko@sntech.de, iommu@lists.linux.dev, jernej.skrabec@gmail.com, jonathanh@nvidia.com, joro@8bytes.org, krzysztof.kozlowski@linaro.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, lizefan.x@bytedance.com, marcan@marcan.st, mhiramat@kernel.org, m.szyprowski@samsung.com, paulmck@kernel.org, rdunlap@infradead.org, robin.murphy@arm.com, samuel@sholland.org, suravee.suthikulpanit@amd.com, sven@svenpeter.dev, thierry.reding@gmail.com, tj@kernel.org, tomas.mudrunka@gmail.com, vdumpa@nvidia.com, wens@csie.org, will@kernel.org, yu-cheng.yu@intel.com Subject: Re: [PATCH v3 10/10] iommu: account IOMMU allocated memory In-Reply-To: <20231226200205.562565-11-pasha.tatashin@soleen.com> Message-ID: References: <20231226200205.562565-1-pasha.tatashin@soleen.com> <20231226200205.562565-11-pasha.tatashin@soleen.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII On Tue, 26 Dec 2023, Pasha Tatashin wrote: > In order to be able to limit the amount of memory that is allocated > by IOMMU subsystem, the memory must be accounted. > > Account IOMMU as part of the secondary pagetables as it was discussed > at LPC. > > The value of SecPageTables now contains mmeory allocation by IOMMU > and KVM. > > Signed-off-by: Pasha Tatashin Acked-by: David Rientjes