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GET /api/patches/2231456/?format=api
{ "id": 2231456, "url": "http://patchwork.ozlabs.org/api/patches/2231456/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430172204.1006673-42-pbonzini@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": "<20260430172204.1006673-42-pbonzini@redhat.com>", "list_archive_url": null, "date": "2026-04-30T17:21:47", "name": "[PULL,41/58] whpx: i386: don't increment eip on MSR access raising GPF", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "8de5ffc38261c750a8c30840b592f608a3643352", "submitter": { "id": 2701, "url": "http://patchwork.ozlabs.org/api/people/2701/?format=api", "name": "Paolo Bonzini", "email": "pbonzini@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430172204.1006673-42-pbonzini@redhat.com/mbox/", "series": [ { "id": 502347, "url": "http://patchwork.ozlabs.org/api/series/502347/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=502347", "date": "2026-04-30T17:21:16", "name": "[PULL,01/58] pythondeps: bump to meson 1.11.1", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/502347/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2231456/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2231456/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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s843SDLg0UKvsSz3PlD1h07mvGjoFN1bbl4roVjonUQQ62Bl3ffJf7NjVL7jgjjxHtoU9btfMd3\n dm3g4wXqF3/urKe9mnHNC5HJkhslO4g49CslwlJ+qe5sda0VusYcsmGFqxw4WkoOVdQze6Ne7Xi\n TyUvTEHKWhIA3NLFSZGIJAox9cm5pmXrMCZjQ=", "X-Received": [ "by 2002:a05:620a:4455:b0:8ea:bddc:690b with SMTP id\n af79cd13be357-8fa89324cd3mr587589785a.51.1777569855918;\n Thu, 30 Apr 2026 10:24:15 -0700 (PDT)", "by 2002:a05:620a:4455:b0:8ea:bddc:690b with SMTP id\n af79cd13be357-8fa89324cd3mr587580385a.51.1777569855175;\n Thu, 30 Apr 2026 10:24:15 -0700 (PDT)" ], "From": "Paolo Bonzini <pbonzini@redhat.com>", "To": "qemu-devel@nongnu.org", "Cc": "Mohamed Mediouni <mohamed@unpredictable.fr>", "Subject": "[PULL 41/58] whpx: i386: don't increment eip on MSR access raising\n GPF", "Date": "Thu, 30 Apr 2026 19:21:47 +0200", "Message-ID": "<20260430172204.1006673-42-pbonzini@redhat.com>", "X-Mailer": "git-send-email 2.54.0", "In-Reply-To": "<20260430172204.1006673-1-pbonzini@redhat.com>", "References": "<20260430172204.1006673-1-pbonzini@redhat.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=170.10.133.124;\n envelope-from=pbonzini@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_H5=0.001, RCVD_IN_MSPIKE_WL=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": "From: Mohamed Mediouni <mohamed@unpredictable.fr>\n\nSigned-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>\nLink: https://lore.kernel.org/r/20260422214225.2242-33-mohamed@unpredictable.fr\nSigned-off-by: Paolo Bonzini <pbonzini@redhat.com>\n---\n target/i386/whpx/whpx-all.c | 11 +++++++++++\n 1 file changed, 11 insertions(+)", "diff": "diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c\nindex eecc7f48ed9..4bb99a8e900 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -2048,6 +2048,7 @@ int whpx_vcpu_run(CPUState *cpu)\n WHV_REGISTER_NAME reg_names[3];\n UINT32 reg_count;\n bool is_known_msr = 0; \n+ bool raises_gpf = false;\n uint64_t val;\n \n if (vcpu->exit_ctx.MsrAccess.AccessInfo.IsWrite) {\n@@ -2086,6 +2087,7 @@ int whpx_vcpu_run(CPUState *cpu)\n int msr_ret = cpu_set_apic_base(X86_CPU(cpu)->apic_state, val);\n if (msr_ret < 0) {\n x86_emul_raise_exception(&X86_CPU(cpu)->env, EXCP0D_GPF, 0);\n+ raises_gpf = true;\n } else {\n whpx_set_reg(cpu, WHvX64RegisterApicBase, reg);\n }\n@@ -2105,6 +2107,7 @@ int whpx_vcpu_run(CPUState *cpu)\n reg_values[1].Reg64 = val;\n if (msr_ret < 0) {\n x86_emul_raise_exception(&X86_CPU(cpu)->env, EXCP0D_GPF, 0);\n+ raises_gpf = true;\n }\n } else {\n bql_lock();\n@@ -2112,6 +2115,7 @@ int whpx_vcpu_run(CPUState *cpu)\n bql_unlock();\n if (msr_ret < 0) {\n x86_emul_raise_exception(&X86_CPU(cpu)->env, EXCP0D_GPF, 0);\n+ raises_gpf = true;\n }\n }\n }\n@@ -2135,6 +2139,13 @@ int whpx_vcpu_run(CPUState *cpu)\n \n if (!is_known_msr && !whpx->ignore_unknown_msr) {\n x86_emul_raise_exception(&X86_CPU(cpu)->env, EXCP0D_GPF, 0);\n+ raises_gpf = true;\n+ }\n+\n+ /* When a GPF is raised, do not change Rip. */\n+ if (raises_gpf) {\n+ reg_values[0].Reg64 =\n+ vcpu->exit_ctx.VpContext.Rip;\n }\n \n hr = whp_dispatch.WHvSetVirtualProcessorRegisters(\n", "prefixes": [ "PULL", "41/58" ] }