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{ "id": 2221123, "url": "http://patchwork.ozlabs.org/api/1.1/covers/2221123/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260408140635.42546-1-zhiwei_liu@linux.alibaba.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260408140635.42546-1-zhiwei_liu@linux.alibaba.com>", "date": "2026-04-08T14:06:29", "name": "[v5,0/6] target/riscv: Implement Smsdid and Smmpt extension", "submitter": { "id": 84720, "url": "http://patchwork.ozlabs.org/api/1.1/people/84720/?format=api", "name": "LIU Zhiwei", "email": "zhiwei_liu@linux.alibaba.com" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260408140635.42546-1-zhiwei_liu@linux.alibaba.com/mbox/", "series": [ { "id": 499183, "url": "http://patchwork.ozlabs.org/api/1.1/series/499183/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499183", "date": "2026-04-08T14:06:34", "name": "target/riscv: Implement Smsdid and Smmpt extension", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/499183/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2221123/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (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=VbrrHQ7O;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4frXvq3y72z1yD6\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 09 Apr 2026 05:20:23 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1wAYRC-0007c2-Pk; Wed, 08 Apr 2026 15:19:42 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <zhiwei_liu@linux.alibaba.com>)\n id 1wAY0J-0005Kt-Ic; Wed, 08 Apr 2026 14:51:56 -0400", "from out30-124.freemail.mail.aliyun.com ([115.124.30.124])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <zhiwei_liu@linux.alibaba.com>)\n id 1wATab-0001BT-57; Wed, 08 Apr 2026 10:09:08 -0400", "from localhost.localdomain(mailfrom:zhiwei_liu@linux.alibaba.com\n fp:SMTPD_---0X0f.zGJ_1775657201 cluster:ay36) by smtp.aliyun-inc.com;\n Wed, 08 Apr 2026 22:06:42 +0800" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=linux.alibaba.com; s=default;\n t=1775657203; h=From:To:Subject:Date:Message-Id:MIME-Version;\n bh=vFg92j2gZ9NSCF4Z3rmDUVqAYz3+1RHvZHtl0F7a700=;\n b=VbrrHQ7O0+tBHYaVFcF0C2v2YA0EJM5PaonSUmjWzF938XUwrrKlhwgsvNjnnXbrbDZ0ruCesHeGZRsBw9R3CsJ4C8OBw34fy6jAOYIg6wB3iUn5NMjI+f/h7tAEE0jhj7rTQdRf1oB0lge42/+6yXCb+syfrLmtceIwKuK7Vkc=", "X-Alimail-AntiSpam": "AC=PASS; BC=-1|-1; BR=01201311R201e4; CH=green;\n DM=||false|;\n DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=maildocker-contentspam033045133197;\n MF=zhiwei_liu@linux.alibaba.com; NM=1; PH=DS; RN=8; SR=0;\n TI=SMTPD_---0X0f.zGJ_1775657201;", "From": "LIU Zhiwei <zhiwei_liu@linux.alibaba.com>", "To": "qemu-devel@nongnu.org", "Cc": "qemu-riscv@nongnu.org, chao.liu.zevorn@gmail.com, palmer@dabbelt.com,\n alistair23@gmail.com, daniel.barboza@oss.qualcomm.com, liwei1518@gmail.com,\n LIU Zhiwei <zhiwei_liu@linux.alibaba.com>", "Subject": "[PATCH v5 0/6] target/riscv: Implement Smsdid and Smmpt extension", "Date": "Wed, 8 Apr 2026 22:06:29 +0800", "Message-Id": "<20260408140635.42546-1-zhiwei_liu@linux.alibaba.com>", "X-Mailer": "git-send-email 2.39.3 (Apple Git-146)", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=115.124.30.124;\n envelope-from=zhiwei_liu@linux.alibaba.com;\n helo=out30-124.freemail.mail.aliyun.com", "X-Spam_score_int": "-174", "X-Spam_score": "-17.5", "X-Spam_bar": "-----------------", "X-Spam_report": "(-17.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, ENV_AND_HDR_SPF_MATCH=-0.5,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_NONE=0.001, SPF_PASS=-0.001, UNPARSEABLE_RELAY=0.001,\n USER_IN_DEF_DKIM_WL=-7.5,\n USER_IN_DEF_SPF_WL=-7.5 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "This patch set introduces support for the RISC-V Smmpt (Supervisor\nMemory-tracking and Protection Table) extension. Smmpt provides a\nhardware mechanism for fine-grained memory protection, checked after\naddress translation, which is particularly useful for supervisor-level\nsandboxing and security monitoring.\n\nThe rfc patch set:\nhttps://mail.gnu.org/archive/html/qemu-riscv/2025-09/msg00216.html\n\nv4->v5:\n 1. Rebase to master. \nv3->v4:\n 1. Add missing review tags.\nv2->v3:\n 1. Fix build error in patch 2.\n 2. Rebase to master.\n\nrfc->v2:\n 1. When ext_smmpt is false or BARE mode, make other fields in mmpt\n CSR zero.\n 2. Add patch 5 to fix smrnmi ISA string order.\n 3. Fix patch 6 smmpt and smsdid ISA string order.\n 4. Make smmpt and smsdid experiment extensions.\n 5. Add review tags.\n\n\nLIU Zhiwei (6):\n target/riscv: Add basic definitions and CSRs for SMMPT\n target/riscv: Implement core SMMPT lookup logic\n target/riscv: Integrate SMMPT checks into MMU and TLB fill\n target/riscv: Implement SMMPT fence instructions\n target/riscv: Fix smrnmi isa alphabetical order\n target/riscv: Enable SMMPT extension\n\n target/riscv/cpu.c | 6 +-\n target/riscv/cpu.h | 9 +-\n target/riscv/cpu_bits.h | 27 ++\n target/riscv/cpu_cfg_fields.h.inc | 2 +\n target/riscv/cpu_helper.c | 81 +++++-\n target/riscv/csr.c | 95 ++++++\n target/riscv/insn32.decode | 2 +\n .../riscv/insn_trans/trans_privileged.c.inc | 30 ++\n target/riscv/meson.build | 1 +\n target/riscv/pmp.h | 3 +\n target/riscv/riscv_smmpt.c | 274 ++++++++++++++++++\n target/riscv/riscv_smmpt.h | 36 +++\n 12 files changed, 560 insertions(+), 6 deletions(-)\n create mode 100644 target/riscv/riscv_smmpt.c\n create mode 100644 target/riscv/riscv_smmpt.h" }