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{ "id": 2223074, "url": "http://patchwork.ozlabs.org/api/1.0/covers/2223074/?format=api", "project": { "id": 70, "url": "http://patchwork.ozlabs.org/api/1.0/projects/70/?format=api", "name": "Linux KVM RISC-V", "link_name": "kvm-riscv", "list_id": "kvm-riscv.lists.infradead.org", "list_email": "kvm-riscv@lists.infradead.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260414110212.79526-1-fangyu.yu@linux.alibaba.com>", "date": "2026-04-14T11:02:10", "name": "[v2,0/2] iommu/riscv: Support Svpbmt memory types in generic_pt", "submitter": { "id": 91416, "url": "http://patchwork.ozlabs.org/api/1.0/people/91416/?format=api", "name": null, "email": "fangyu.yu@linux.alibaba.com" }, "series": [ { "id": 499817, "url": "http://patchwork.ozlabs.org/api/1.0/series/499817/?format=api", "date": "2026-04-14T11:02:10", "name": "iommu/riscv: Support Svpbmt memory types in generic_pt", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/499817/mbox/" } ], "headers": { "Return-Path": "\n <kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=eqlj1wWT;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n unprotected) header.d=linux.alibaba.com header.i=@linux.alibaba.com\n header.a=rsa-sha256 header.s=default header.b=rD6WN/6U;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; 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a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20210309; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc\n\t:To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:\n\tResent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:\n\tList-Owner; bh=OC/OmZ80yGLQXsjIWIT7CXMdjPhOATHNA77JCUMLEck=; b=eqlj1wWTLjrVOX\n\t9ZeJJD4/z6j08KrtcH9fSvp0F5DILkdX5HFfrDQnNYzIQZKIFlN5VYIOp1T+Yl9n+eDGHO0EF3eRU\n\tnwfIE3kZSKk1SbdZrjN3P/ZsyikcLLkZpvtj/zOtHIFYS5XO1o1yWwluOKQH0tSBh+EwRRx7Bwlaq\n\tK/p8eNC9RkdCv83MbdOCaccqbnOZM46VrOY4XZRRaLUxQVWlKxMj5t+6gifRX+N7tDqY4lYPELaRs\n\tbQSzgVdN6hTlhYfb/xPk9RuA/SHn9tixvZq2QISFC8RNF838sy0mvQ2nj5kxAN0ETnIL8hG9SzgT0\n\tP2PkG994lEhm45+VwzeA==;", "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=linux.alibaba.com; s=default;\n\tt=1776164541; h=From:To:Subject:Date:Message-Id:MIME-Version;\n\tbh=nQO0WEe8PRJEZNBo6ma9yL1pusW/StlSU4Ir3Mof4CQ=;\n\tb=rD6WN/6UcaT0Jp9LJSmXv7CBbnTqayydixUytro38OtACv5XXWyf9d/xNBySsdyfhu54jYEeCRWR2b0wdvoWzRKorntmZFhwXON0hAfVx6u/EUUCmKI0XXP1nj4skpncokk8xsVP/NcPMnH/PLhwQyDGm2sULESbk4QPEUD6WQg=" ], "X-Alimail-AntiSpam": "\n AC=PASS;BC=-1|-1;BR=01201311R751e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033045098064;MF=fangyu.yu@linux.alibaba.com;NM=1;PH=DS;RN=21;SR=0;TI=SMTPD_---0X11DRSf_1776164534;", "From": "fangyu.yu@linux.alibaba.com", "To": "joro@8bytes.org,\n\twill@kernel.org,\n\trobin.murphy@arm.com,\n\tpjw@kernel.org,\n\tpalmer@dabbelt.com,\n\taou@eecs.berkeley.edu,\n\talex@ghiti.fr,\n\ttjeznach@rivosinc.com,\n\tjgg@ziepe.ca,\n\tkevin.tian@intel.com,\n\tbaolu.lu@linux.intel.com,\n\tvasant.hegde@amd.com,\n\tanup@brainfault.org,\n\tnutty.liu@hotmail.com,\n\tjgg@nvidia.com", "Cc": "guoren@kernel.org,\n\tiommu@lists.linux.dev,\n\tkvm-riscv@lists.infradead.org,\n\tlinux-riscv@lists.infradead.org,\n\tlinux-kernel@vger.kernel.org,\n\tFangyu Yu <fangyu.yu@linux.alibaba.com>", "Subject": "[PATCH v2 0/2] iommu/riscv: Support Svpbmt memory types in generic_pt", "Date": "Tue, 14 Apr 2026 19:02:10 +0800", "Message-Id": "<20260414110212.79526-1-fangyu.yu@linux.alibaba.com>", "X-Mailer": "git-send-email 2.39.3 (Apple Git-146)", "MIME-Version": "1.0", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20260414_040225_493866_3A8A4D75 ", "X-CRM114-Status": "UNSURE ( 4.92 )", "X-CRM114-Notice": "Please train this message.", "X-Spam-Score": "-17.6 (-----------------)", "X-Spam-Report": "Spam detection software,\n running on the system \"bombadil.infradead.org\",\n has NOT identified this incoming email as spam. The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: From: Fangyu Yu <fangyu.yu@linux.alibaba.com> RISC-V Svpbmt\n adds page-based memory types (PBMT) to PTEs,\n allowing mappings to be tagged\n as e.g. normal memory, non-cacheable memory, or I/O. This series wires the\n RISC-V IOMMU Svpbmt capability into generic_pt and uses PBMT to encode\n device\n memory attributes for IOMMU mappings.\n Content analysis details: (-17.6 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n 0.0 RCVD_IN_VALIDITY_SAFE_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. 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See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [115.124.30.118 listed in\n sa-trusted.bondedsender.org]\n -0.0 SPF_PASS SPF: sender matches SPF record\n -7.5 USER_IN_DEF_DKIM_WL From: address is in the default DKIM welcome-list\n -7.5 USER_IN_DEF_SPF_WL From: address is in the default SPF welcome-list\n 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]\n -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no\n trust\n [115.124.30.118 listed in list.dnswl.org]\n -0.5 ENV_AND_HDR_SPF_MATCH Env and Hdr From used in default SPF WL Match\n 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay\n lines\n 0.0 RCVD_IN_VALIDITY_RPBL_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [115.124.30.118 listed in\n bl.score.senderscore.com]", "X-BeenThere": "kvm-riscv@lists.infradead.org", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "<kvm-riscv.lists.infradead.org>", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/kvm-riscv>,\n <mailto:kvm-riscv-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/kvm-riscv/>", "List-Post": "<mailto:kvm-riscv@lists.infradead.org>", "List-Help": "<mailto:kvm-riscv-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/kvm-riscv>,\n <mailto:kvm-riscv-request@lists.infradead.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"kvm-riscv\" <kvm-riscv-bounces@lists.infradead.org>", "Errors-To": "kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org" }, "content": "From: Fangyu Yu <fangyu.yu@linux.alibaba.com>\n\nRISC-V Svpbmt adds page-based memory types (PBMT) to PTEs, allowing\nmappings to be tagged as e.g. normal memory, non-cacheable memory, or\nI/O.\n\nThis series wires the RISC-V IOMMU Svpbmt capability into generic_pt\nand uses PBMT to encode device memory attributes for IOMMU mappings.\n\nThis series builds on top of the new RISC-V IOMMU page table patches:\nhttps://patch.msgid.link/r/0-v3-9dbf0a72a51c+302-iommu_pt_riscv_jgg@nvidia.com\n\n---\nChanges in v2:\n - Add a comment for PT_FEAT_RISCV_SVPBMT (per Kevin and Jason).\n - Clarify PBMT encoding condition, sort PBMT-related bits by\n position, and drop the redundant PBMT clear(per Kevin).\n - Link to v1:\n https://lore.kernel.org/linux-iommu/20260411022223.91029-1-fangyu.yu@linux.alibaba.com/\n\nFangyu Yu (2):\n iommu/riscv: Advertise Svpbmt support to generic page table\n iommupt: Encode IOMMU_MMIO/IOMMU_CACHE via RISC-V Svpbmt bits\n\n drivers/iommu/generic_pt/fmt/riscv.h | 8 ++++++++\n drivers/iommu/riscv/iommu.c | 2 ++\n include/linux/generic_pt/common.h | 4 ++++\n 3 files changed, 14 insertions(+)" }