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GET /api/1.2/patches/2234199/?format=api
{ "id": 2234199, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2234199/?format=api", "web_url": "http://patchwork.ozlabs.org/project/kvm-riscv/patch/20260507113706.11400-4-fangyu.yu@linux.alibaba.com/", "project": { "id": 70, "url": "http://patchwork.ozlabs.org/api/1.2/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": "", "list_archive_url": "http://lists.infradead.org/pipermail/kvm-riscv/", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260507113706.11400-4-fangyu.yu@linux.alibaba.com>", "list_archive_url": null, "date": "2026-05-07T11:36:59", "name": "[RFC,v2,03/10] iommu/riscv: report iommu capabilities", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "091e7db0a46843963f6c30e45e5a253a3183b19e", "submitter": { "id": 91416, "url": "http://patchwork.ozlabs.org/api/1.2/people/91416/?format=api", "name": null, "email": "fangyu.yu@linux.alibaba.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/kvm-riscv/patch/20260507113706.11400-4-fangyu.yu@linux.alibaba.com/mbox/", "series": [ { "id": 503164, "url": "http://patchwork.ozlabs.org/api/1.2/series/503164/?format=api", "web_url": "http://patchwork.ozlabs.org/project/kvm-riscv/list/?series=503164", "date": "2026-05-07T11:36:57", "name": "iommu/riscv: Add hardware dirty tracking for second-stage domains", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/503164/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2234199/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2234199/checks/", "tags": {}, "related": [], "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=iPU0abxb;\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=neZg/LLt;\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:References:In-Reply-To:\n\tMessage-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=WagpaT+eM0II3Hhkm3II6IeTTMEDhG8jeMTTGTOBDLo=; b=iPU0abxbj2wCTx\n\tVPi7HnO0VHbESXu8YvQaA1M3AwqXhvlkZM5ZcTs7kong1Kg5AVfK7Giv0GwXwRPfQP0ZCjsVyp54b\n\t26Gv2TkAgt05WzTeECpX0H0W1uoSjbddH7A5YQD8PgHabZEebwReDTAxFaAimtE0rT/+HYOWXt90v\n\tOq/1bfL2pp5qxPWGZIeFRpRhCag/4MwMrMyW2fkKoxJpVaiZeS9OOrOGVmTmjAJRANq3kk7O0dXNd\n\tokMnLeqk/wz4+98P8xgdt5GIQTZuIEHti1DT8bHUqqlE/u3yrAas0c4mSDVVGXXrc8wZddlkJZi2m\n\tOCHy8ytzb3e2/AMoq1Sg==;", "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=linux.alibaba.com; s=default;\n\tt=1778153842; h=From:To:Subject:Date:Message-Id:MIME-Version;\n\tbh=tFAMKZYz1nJYVHM70HUe0OYd4bRWfYYuKOfYQU7XBks=;\n\tb=neZg/LLtr1M6r9IheESq/uK4BtPLmDUGOFDIJ7VfYLVkIXH//zl/F70vSFp2C/8QpMNColZbc7zqV7jTlZkdM6brK5FzAFZzyFb9LMClEb+A/SmkqaIQSH3w17FtrS31BdIICLcVxEx0rO9CoXRXHwCPILwBS4DV4mdEqCo/5o8=" ], "X-Alimail-AntiSpam": "\n AC=PASS;BC=-1|-1;BR=01201311R201e4;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=24;SR=0;TI=SMTPD_---0X2UVF.3_1778153834;", "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\tatish.patra@linux.dev,\n\tskhawaja@google.com,\n\tjgg@nvidia.com", "Cc": "guoren@kernel.org,\n\tandrew.jones@oss.qualcomm.com,\n\tkvm@vger.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": "[RFC PATCH v2 03/10] iommu/riscv: report iommu capabilities", "Date": "Thu, 7 May 2026 19:36:59 +0800", "Message-Id": "<20260507113706.11400-4-fangyu.yu@linux.alibaba.com>", "X-Mailer": "git-send-email 2.39.3 (Apple Git-146)", "In-Reply-To": "<20260507113706.11400-1-fangyu.yu@linux.alibaba.com>", "References": "<20260507113706.11400-1-fangyu.yu@linux.alibaba.com>", "MIME-Version": "1.0", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20260507_043727_183680_F80342ED ", "X-CRM114-Status": "UNSURE ( 6.85 )", "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: Tomasz Jeznach <tjeznach@rivosinc.com> Report RISC-V\n IOMMU capabilities required by VFIO subsystem to enable PCIe device\n assignment.\n Signed-off-by: Tomasz Jeznach <tjeznach@rivosinc.com> Signed-off-by:\n Fangyu\n Yu <fangyu.yu@linux.alibaba.com> --- drivers/iommu/riscv/iommu.c | 11\n +++++++++++\n 1 file changed, 11 insertions(+)\n Content analysis details: (-17.6 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no\n trust\n [47.90.199.8 listed in list.dnswl.org]\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_PASS SPF: sender matches SPF record\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_VALID Message has at least one valid DKIM or DK\n signature\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]\n 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay\n lines\n -0.5 ENV_AND_HDR_SPF_MATCH Env and Hdr From used in default SPF WL Match\n -0.0 DMARC_PASS DMARC pass policy", "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: Tomasz Jeznach <tjeznach@rivosinc.com>\n\nReport RISC-V IOMMU capabilities required by VFIO subsystem\nto enable PCIe device assignment.\n\nSigned-off-by: Tomasz Jeznach <tjeznach@rivosinc.com>\nSigned-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com>\n---\n drivers/iommu/riscv/iommu.c | 11 +++++++++++\n 1 file changed, 11 insertions(+)", "diff": "diff --git a/drivers/iommu/riscv/iommu.c b/drivers/iommu/riscv/iommu.c\nindex a31f50bbad35..bd36e3b5d13f 100644\n--- a/drivers/iommu/riscv/iommu.c\n+++ b/drivers/iommu/riscv/iommu.c\n@@ -1336,6 +1336,16 @@ static struct iommu_group *riscv_iommu_device_group(struct device *dev)\n \treturn generic_device_group(dev);\n }\n \n+static bool riscv_iommu_capable(struct device *dev, enum iommu_cap cap)\n+{\n+\tswitch (cap) {\n+\tcase IOMMU_CAP_CACHE_COHERENCY:\n+\t\treturn true;\n+\tdefault:\n+\t\treturn false;\n+\t}\n+}\n+\n static int riscv_iommu_of_xlate(struct device *dev, const struct of_phandle_args *args)\n {\n \treturn iommu_fwspec_add_ids(dev, args->args, 1);\n@@ -1397,6 +1407,7 @@ static void riscv_iommu_release_device(struct device *dev)\n \n static const struct iommu_ops riscv_iommu_ops = {\n \t.of_xlate = riscv_iommu_of_xlate,\n+\t.capable = riscv_iommu_capable,\n \t.identity_domain = &riscv_iommu_identity_domain,\n \t.blocked_domain = &riscv_iommu_blocking_domain,\n \t.release_domain = &riscv_iommu_blocking_domain,\n", "prefixes": [ "RFC", "v2", "03/10" ] }