From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f173.google.com (mail-pl1-f173.google.com [209.85.214.173]) (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 9E9882563 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="ak+Y/oWS" Received: by mail-pl1-f173.google.com with SMTP id d9443c01a7336-1d47fae33e0so18715ad.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=lists.linux.dev; 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=ak+Y/oWScO6XnymJiMDakeV+N1hyXHLHC/Xg8gdiQE7gQijzUvKMkV8W+ippB9UN+r QQvkXQSsJ6NSzHQ05u4dh92uxoiteM4K1/2OljbFv4WzMYlKEEir65osDm269ueofLOF Wu/JpEtUX0LLpAIt3RRBqh3EVmchFU4qgBdxziXsvlsLLCKa4fpgWwy6+RXhuIfDIpoC v1MZw71+geNgDa4tJVNTVwcSz+mdAOC9Zq0U5iBlul7qM1DnEZWuAeCNfOVlLM9Gn3Hh pdVxz6QmECsRpLzCaop21jyHelehqSrFhlw1WKAdC4Lk7wrBU69FFV/VOVIDQY/KIMGn xgjA== 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=m3Zu/AHp26b0ud0W2f9zygCXrwFFHi7mgq9v6kmEgXLy8bdduSeu7k7aWMmrNmtrRR dlqSsnQ+5UrujqtjAE4RU3GQI+vO/625qzvg5JyJK5Ha1nCCVYV5+c3kLGKfH11RMcU0 1XkDV4cmdwekLUlS+Gip6Iu9a88pcir3Cb75SIbrLetRp8Y7gV7wsobnnT30xG5H7BBn VUzW2SCBuPNjp7fiuQzuaaLRnOOjQDPpNQEqib4AWTw3M9rO0HSs3hSODRVRG6CSmZSA QQxmJISWgyzn+amUlTHRBI+OQVWnProNpaWfqUWiuvzzylNCiwF0w1FYK/h2lI/9P8O7 hqbQ== X-Gm-Message-State: AOJu0YzDULcQfYuIbSjkQC6X7ICGnwZnBX5kcAVN4mKqFOLwNOsQivxC uNe+NtGsTpfkae2h+efe4hpcilN6X1lF 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-sunxi@lists.linux.dev 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