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GET /api/1.1/patches/2223656/?format=api
{ "id": 2223656, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2223656/?format=api", "web_url": "http://patchwork.ozlabs.org/project/kvm-riscv/patch/20260415220930.287592-1-osama.abdelkader@gmail.com/", "project": { "id": 70, "url": "http://patchwork.ozlabs.org/api/1.1/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": "<20260415220930.287592-1-osama.abdelkader@gmail.com>", "date": "2026-04-15T22:09:30", "name": "[RFC] riscv: kvm: return SBI_ERR_FAILURE for PMU shmem OOM", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "67b75cc267b58830918b92f4f156158aa46764a4", "submitter": { "id": 91532, "url": "http://patchwork.ozlabs.org/api/1.1/people/91532/?format=api", "name": "Osama Abdelkader", "email": "osama.abdelkader@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/kvm-riscv/patch/20260415220930.287592-1-osama.abdelkader@gmail.com/mbox/", "series": [ { "id": 500047, "url": "http://patchwork.ozlabs.org/api/1.1/series/500047/?format=api", "web_url": "http://patchwork.ozlabs.org/project/kvm-riscv/list/?series=500047", "date": "2026-04-15T22:09:30", "name": "[RFC] riscv: kvm: return SBI_ERR_FAILURE for PMU shmem OOM", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500047/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223656/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223656/checks/", "tags": {}, "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=GGfYvnP9;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=F/NzA5xM;\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; helo=bombadil.infradead.org;\n envelope-from=kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from bombadil.infradead.org (bombadil.infradead.org\n [IPv6:2607:7c80:54:3::133])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fwwMH1Hrxz1yCv\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 16 Apr 2026 08:10:41 +1000 (AEST)", "from localhost ([::1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux))\n\tid 1wD8RO-00000001fJ2-10ol;\n\tWed, 15 Apr 2026 22:10:34 +0000", "from mail-wm1-x331.google.com ([2a00:1450:4864:20::331])\n\tby bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux))\n\tid 1wD8RH-00000001fIF-1DTZ\n\tfor kvm-riscv@lists.infradead.org;\n\tWed, 15 Apr 2026 22:10:31 +0000", "by mail-wm1-x331.google.com with SMTP id\n 5b1f17b1804b1-48334ee0aeaso71849865e9.1\n for <kvm-riscv@lists.infradead.org>;\n Wed, 15 Apr 2026 15:10:26 -0700 (PDT)", "from osama.. 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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: kvm_riscv_vcpu_pmu_snapshot_set_shmem() and\n kvm_riscv_vcpu_pmu_event_info()\n returned -ENOMEM from the SBI extension handler,\n which caused kvm_riscv_vcpu_sbi_ecall()\n to abort KVM_RUN and surface the er [...]\n Content analysis details: (-2.1 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 [2a00:1450:4864:20:0:0:0:331 listed in]\n [list.dnswl.org]\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_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 FREEMAIL_FROM Sender email is commonly abused enduser mail\n provider\n [osama.abdelkader(at)gmail.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": "kvm_riscv_vcpu_pmu_snapshot_set_shmem() and kvm_riscv_vcpu_pmu_event_info()\nreturned -ENOMEM from the SBI extension handler, which caused \nkvm_riscv_vcpu_sbi_ecall() to abort KVM_RUN and surface the error to \nuserspace instead of completing the ECALL with a negative SBI error in a0.\nUse SBI_ERR_FAILURE and the normal retdata path, matching other PMU\nhandlers and kvm_sbi_ext_pmu_handler comment.\n\nSigned-off-by: Osama Abdelkader <osama.abdelkader@gmail.com>\n---\n arch/riscv/kvm/vcpu_pmu.c | 12 ++++++++----\n 1 file changed, 8 insertions(+), 4 deletions(-)", "diff": "diff --git a/arch/riscv/kvm/vcpu_pmu.c b/arch/riscv/kvm/vcpu_pmu.c\nindex e873430e596b..f36b099f447c 100644\n--- a/arch/riscv/kvm/vcpu_pmu.c\n+++ b/arch/riscv/kvm/vcpu_pmu.c\n@@ -435,8 +435,10 @@ int kvm_riscv_vcpu_pmu_snapshot_set_shmem(struct kvm_vcpu *vcpu, unsigned long s\n \t}\n \n \tkvpmu->sdata = kzalloc(snapshot_area_size, GFP_ATOMIC);\n-\tif (!kvpmu->sdata)\n-\t\treturn -ENOMEM;\n+\tif (!kvpmu->sdata) {\n+\t\tsbiret = SBI_ERR_FAILURE;\n+\t\tgoto out;\n+\t}\n \n \t/* No need to check writable slot explicitly as kvm_vcpu_write_guest does it internally */\n \tif (kvm_vcpu_write_guest(vcpu, saddr, kvpmu->sdata, snapshot_area_size)) {\n@@ -480,8 +482,10 @@ int kvm_riscv_vcpu_pmu_event_info(struct kvm_vcpu *vcpu, unsigned long saddr_low\n \t}\n \n \teinfo = kzalloc(shmem_size, GFP_KERNEL);\n-\tif (!einfo)\n-\t\treturn -ENOMEM;\n+\tif (!einfo) {\n+\t\tret = SBI_ERR_FAILURE;\n+\t\tgoto out;\n+\t}\n \n \tret = kvm_vcpu_read_guest(vcpu, shmem, einfo, shmem_size);\n \tif (ret) {\n", "prefixes": [ "RFC" ] }