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GET /api/patches/2195832/?format=api
{ "id": 2195832, "url": "http://patchwork.ozlabs.org/api/patches/2195832/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260212062522.99565-9-anisinha@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/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": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260212062522.99565-9-anisinha@redhat.com>", "list_archive_url": null, "date": "2026-02-12T06:24:52", "name": "[v4,08/31] i386/kvm: unregister smram listeners prior to vm file descriptor change", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "bf58d0d123be0c9f37c92265b683987d72bb392e", "submitter": { "id": 86030, "url": "http://patchwork.ozlabs.org/api/people/86030/?format=api", "name": "Ani Sinha", "email": "anisinha@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260212062522.99565-9-anisinha@redhat.com/mbox/", "series": [ { "id": 491935, "url": "http://patchwork.ozlabs.org/api/series/491935/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=491935", "date": "2026-02-12T06:24:45", "name": "Introduce support for confidential guest reset (x86)", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/491935/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2195832/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2195832/checks/", "tags": {}, "related": [], "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) 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MTR5bsUHS6eeILYSBIHxdeeG6BK24mLCl0AJwn00D9u5KLKNZxji6Cz3FOFBVemEQqz0UscV9db\n ZsO1nGwRRC0VzAiOP1Il0hNPGijgryq97SRKbrMclnPO+FfTTLd23y8ykquzLelKIwSQalSB8c+\n RGhp3vov5rhvzyYCtdEyG+STs8nSzM4q43C6gDj/lKAG5GVfCwNQl79w=", "X-Received": [ "by 2002:a17:90b:3912:b0:353:356c:6821 with SMTP id\n 98e67ed59e1d1-3568f2b7610mr1774883a91.8.1770877560308;\n Wed, 11 Feb 2026 22:26:00 -0800 (PST)", "by 2002:a17:90b:3912:b0:353:356c:6821 with SMTP id\n 98e67ed59e1d1-3568f2b7610mr1774860a91.8.1770877559964;\n Wed, 11 Feb 2026 22:25:59 -0800 (PST)" ], "From": "Ani Sinha <anisinha@redhat.com>", "To": "Paolo Bonzini <pbonzini@redhat.com>, Marcelo Tosatti <mtosatti@redhat.com>", "Cc": "kraxel@redhat.com, Ani Sinha <anisinha@redhat.com>, kvm@vger.kernel.org,\n qemu-devel@nongnu.org", "Subject": "[PATCH v4 08/31] i386/kvm: unregister smram listeners prior to vm\n file descriptor change", "Date": "Thu, 12 Feb 2026 11:54:52 +0530", "Message-ID": "<20260212062522.99565-9-anisinha@redhat.com>", "X-Mailer": "git-send-email 2.42.0", "In-Reply-To": "<20260212062522.99565-1-anisinha@redhat.com>", "References": "<20260212062522.99565-1-anisinha@redhat.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=170.10.133.124;\n envelope-from=anisinha@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\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_PASS=-0.001, SPF_PASS=-0.001 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": "We will re-register smram listeners after the VM file descriptors has changed.\nWe need to unregister them first to make sure addresses and reference counters\nwork properly.\n\nSigned-off-by: Ani Sinha <anisinha@redhat.com>\n---\n target/i386/kvm/kvm.c | 18 ++++++++++++++++++\n 1 file changed, 18 insertions(+)", "diff": "diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c\nindex 83c15f098e..5d9b79529f 100644\n--- a/target/i386/kvm/kvm.c\n+++ b/target/i386/kvm/kvm.c\n@@ -112,6 +112,11 @@ typedef struct {\n static void kvm_init_msrs(X86CPU *cpu);\n static int kvm_filter_msr(KVMState *s, uint32_t msr, QEMURDMSRHandler *rdmsr,\n QEMUWRMSRHandler *wrmsr);\n+static int unregister_smram_listener(NotifierWithReturn *notifier,\n+ void *data, Error** errp);\n+NotifierWithReturn kvm_vmfd_change_notifier = {\n+ .notify = unregister_smram_listener,\n+};\n \n const KVMCapabilityInfo kvm_arch_required_capabilities[] = {\n KVM_CAP_INFO(SET_TSS_ADDR),\n@@ -2748,6 +2753,17 @@ static void register_smram_listener(Notifier *n, void *unused)\n }\n }\n \n+static int unregister_smram_listener(NotifierWithReturn *notifier,\n+ void *data, Error** errp)\n+{\n+ if (!((VmfdChangeNotifier *)data)->pre) {\n+ return 0;\n+ }\n+\n+ memory_listener_unregister(&smram_listener.listener);\n+ return 0;\n+}\n+\n /* It should only be called in cpu's hotplug callback */\n void kvm_smm_cpu_address_space_init(X86CPU *cpu)\n {\n@@ -3400,6 +3416,8 @@ int kvm_arch_init(MachineState *ms, KVMState *s)\n }\n }\n \n+ kvm_vmfd_add_change_notifier(&kvm_vmfd_change_notifier);\n+\n return 0;\n }\n \n", "prefixes": [ "v4", "08/31" ] }