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Tue, 25 Feb 2025 23:17:50 +0000 (GMT) Received: from pps.filterd (iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com [127.0.0.1]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 51PLIQm2025216; Tue, 25 Feb 2025 23:17:48 GMT Received: from alaljime-e5-test-20240903-1847.osdevelopmeniad.oraclevcn.com (alaljime-e5-test-20240903-1847.allregionaliads.osdevelopmeniad.oraclevcn.com [100.100.250.206]) by iadpaimrmta02.imrmtpd1.prodappiadaev1.oraclevcn.com (PPS) with ESMTP id 44y51gg9ht-1; Tue, 25 Feb 2025 23:17:48 +0000 From: Alejandro Jimenez To: jgg@nvidia.com Cc: alim.akhtar@samsung.com, alyssa@rosenzweig.io, aou@eecs.berkeley.edu, asahi@lists.linux.dev, bagasdotme@gmail.com, baolu.lu@linux.intel.com, dwmw2@infradead.org, heiko@sntech.de, iommu@lists.linux.dev, jernej.skrabec@gmail.com, jonathanh@nvidia.com, joro@8bytes.org, jroedel@suse.de, krzk@kernel.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, m.szyprowski@samsung.com, marcan@marcan.st, palmer@dabbelt.com, pasha.tatashin@soleen.com, patches@lists.linux.dev, paul.walmsley@sifive.com, rientjes@google.com, robin.murphy@arm.com, samuel@sholland.org, suravee.suthikulpanit@amd.com, sven@svenpeter.dev, thierry.reding@gmail.com, tjeznach@rivosinc.com, vdumpa@nvidia.com, wens@csie.org, will@kernel.org, willy@infradead.org Subject: Re: [PATCH v3 00/23] iommu: Further abstract iommu-pages Date: Tue, 25 Feb 2025 23:17:47 +0000 Message-ID: <20250225231747.15277-1-alejandro.j.jimenez@oracle.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <0-v3-e797f4dc6918+93057-iommu_pages_jgg@nvidia.com> References: <0-v3-e797f4dc6918+93057-iommu_pages_jgg@nvidia.com> Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-25_08,2025-02-25_03,2024-11-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 spamscore=0 mlxlogscore=987 phishscore=0 mlxscore=0 suspectscore=0 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2502100000 definitions=main-2502250137 X-Proofpoint-GUID: Xr02HcGTinEg17mYvbDuWPbxj8NLDu8q X-Proofpoint-ORIG-GUID: Xr02HcGTinEg17mYvbDuWPbxj8NLDu8q >Improve the API to work directly on sizes instead of order, the drivers > generally have HW specs and code paths that already have specific sizes. > Pass those sizes down into the allocator to remove some boiler plate > get_order() in drivers. This is cleanup to be ready for a possible sub > page allocator some day. > > This is on github: https://github.com/jgunthorpe/linux/commits/iommu_pages > > v3: Tested v3 on AMD Zen4 bare metal host, using v1/v2 page table formats. Ran host kernel with iommu.passthrough=0. Launched KVM guest with large memory (512+ G) and 16 VFs. No errors or warnings found. Tested-by: Alejandro Jimenez