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GET /api/patches/2194843/?format=api
{ "id": 2194843, "url": "http://patchwork.ozlabs.org/api/patches/2194843/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260210032348.987549-17-zhao1.liu@intel.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": "<20260210032348.987549-17-zhao1.liu@intel.com>", "list_archive_url": null, "date": "2026-02-10T03:23:43", "name": "[v2,16/21] target/i386: deprecate cpuid-0xb property", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "47076fb8174d7fcf08afb67d57ffa0405c71b3c5", "submitter": { "id": 86545, "url": "http://patchwork.ozlabs.org/api/people/86545/?format=api", "name": "Zhao Liu", "email": "zhao1.liu@intel.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260210032348.987549-17-zhao1.liu@intel.com/mbox/", "series": [ { "id": 491594, "url": "http://patchwork.ozlabs.org/api/series/491594/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=491594", "date": "2026-02-10T03:23:28", "name": "qom: introduce property flags to track external user input", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/491594/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2194843/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2194843/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 (2048-bit key;\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=DwHXpFh0;\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 (lists.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 4f95rz6Q1Rz1xvb\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 10 Feb 2026 14:00:03 +1100 (AEDT)", "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 1vpdyY-0000FE-Hx; Mon, 09 Feb 2026 21:59:42 -0500", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <zhao1.liu@intel.com>)\n id 1vpdyN-0008AK-Sn\n for qemu-devel@nongnu.org; Mon, 09 Feb 2026 21:59:35 -0500", "from mgamail.intel.com ([198.175.65.14])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <zhao1.liu@intel.com>)\n id 1vpdyM-0004En-7G\n for qemu-devel@nongnu.org; Mon, 09 Feb 2026 21:59:31 -0500", "from orviesa008.jf.intel.com ([10.64.159.148])\n by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 09 Feb 2026 18:59:29 -0800", "from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.39])\n by orviesa008.jf.intel.com with ESMTP; 09 Feb 2026 18:59:25 -0800" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple;\n d=intel.com; i=@intel.com; q=dns/txt; s=Intel;\n t=1770692370; x=1802228370;\n h=from:to:cc:subject:date:message-id:in-reply-to:\n references:mime-version:content-transfer-encoding;\n bh=LigRHQwWAD31PQTypxiGTImF+tjLtIXfRGIv8W1lHg8=;\n b=DwHXpFh0GhbX5HZ0hXff4LCTgLmPKJdtsQdN/wNrRRmxetfbCDvC6T9v\n G/MKu4Hdrcu8xGclRX2YpOgp4o3D+YXQTj7TDQwON+T9kURLSC59ldxOd\n OC8Zh0pWFYKN4FpUHCDb6tH1Iiboj/6HbsJjm8lHYMUfwlCFCCTBnIoC8\n +8gK5BT7jy/Xem8LJWytC3q1p7Zd2EfBcmz8nnsGFmuxOSSq3fDnGXN+u\n bBMdVl2/yLoDu/V+4tWat/RdEPMQE70lv/2I7rOFxKVvxMTb0BGKkdMN0\n gQlMrR2K8S7jhkia/QmNZ3CIzmonRHkC6Kp3OxZnWYpB/85Y3PWI06ixG Q==;", "X-CSE-ConnectionGUID": [ "VuSjy6bARjGi7ElDw2IqfQ==", "5rPKbzLYRgSPUbhIJMODbg==" ], "X-CSE-MsgGUID": [ "GkTlID+gQWqnR2q9eStaBA==", "0StkaQtEQEq/BR7OB0dJ2g==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6800,10657,11696\"; a=\"75659971\"", "E=Sophos;i=\"6.21,283,1763452800\"; d=\"scan'208\";a=\"75659971\"", "E=Sophos;i=\"6.21,283,1763452800\"; d=\"scan'208\";a=\"211800723\"" ], "X-ExtLoop1": "1", "From": "Zhao Liu <zhao1.liu@intel.com>", "To": "Paolo Bonzini <pbonzini@redhat.com>, =?utf-8?q?Daniel_P_=2E_Berrang?=\n\t=?utf-8?q?=C3=A9?= <berrange@redhat.com>,\n Eduardo Habkost <eduardo@habkost.net>, Markus Armbruster <armbru@redhat.com>,\n Thomas Huth <thuth@redhat.com>, Igor Mammedov <imammedo@redhat.com>,\n\t=?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= <philmd@linaro.org>", "Cc": "Richard Henderson <richard.henderson@linaro.org>,\n Peter Maydell <peter.maydell@linaro.org>,\n \"Michael S . Tsirkin\" <mst@redhat.com>,\n BALATON Zoltan <balaton@eik.bme.hu>,\n Mark Cave-Ayland <mark.caveayland@nutanix.com>,\n Pierrick Bouvier <pierrick.bouvier@linaro.org>,\n Zide Chen <zide.chen@intel.com>, Dapeng Mi <dapeng1.mi@linux.intel.com>,\n Zhao Liu <zhao1.liu@intel.com>, qemu-devel@nongnu.org,\n devel@lists.libvirt.org", "Subject": "[PATCH v2 16/21] target/i386: deprecate cpuid-0xb property", "Date": "Tue, 10 Feb 2026 11:23:43 +0800", "Message-Id": "<20260210032348.987549-17-zhao1.liu@intel.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20260210032348.987549-1-zhao1.liu@intel.com>", "References": "<20260210032348.987549-1-zhao1.liu@intel.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=198.175.65.14; envelope-from=zhao1.liu@intel.com;\n helo=mgamail.intel.com", "X-Spam_score_int": "-43", "X-Spam_score": "-4.4", "X-Spam_bar": "----", "X-Spam_report": "(-4.4 / 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_MED=-2.3, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001,\n RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001,\n 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": "\"cpuid-0xb\" was previously disabled only on PC-Q35-2.6 and\nPC-I440FX-2.6 machines, but PC v2.6 machines have been deprecated and\nwill be removed.\n\nConsiderring it may have external use, so deprecate it before removal.\n\nSigned-off-by: Zhao Liu <zhao1.liu@intel.com>\n---\n docs/about/deprecated.rst | 10 ++++++++++\n target/i386/cpu.c | 3 ++-\n 2 files changed, 12 insertions(+), 1 deletion(-)", "diff": "diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst\nindex 0e8a25e37414..fed939b7f042 100644\n--- a/docs/about/deprecated.rst\n+++ b/docs/about/deprecated.rst\n@@ -456,6 +456,16 @@ The ``fill-mtrr-mask=true`` fill the bits between 51..number-of-physical-address\n false only on PC-Q35-2.6 and PC-I440FX-2.6 machines, but PC v2.6 machines have\n been removed. Deprecate this property to stop external use.\n \n+``cpuid-0xb`` on x86 (since 11.0)\n+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n+\n+The ``cpuid-0xb`` is used to control whether to encode CPUID 0xB leaf or not.\n+Only legacy x86 CPUs didn't have 0xB leaf, and the ```level``` property can\n+control whether CPUID exposes the 0xB leaf and emulate legacy CPUs. This\n+property was previously set to false only on PC-Q35-2.6 and PC-I440FX-2.6\n+machines, but PC v2.6 machines have been removed. Deprecate this property to\n+stop external use.\n+\n ``pmu-num=n`` on RISC-V CPUs (since 8.2)\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n \ndiff --git a/target/i386/cpu.c b/target/i386/cpu.c\nindex 13ccb1702d32..3766d453157b 100644\n--- a/target/i386/cpu.c\n+++ b/target/i386/cpu.c\n@@ -10523,7 +10523,8 @@ static const Property x86_cpu_properties[] = {\n DEFINE_PROP_UINT64(\"ucode-rev\", X86CPU, ucode_rev, 0),\n DEFINE_PROP_BOOL(\"full-cpuid-auto-level\", X86CPU, full_cpuid_auto_level, true),\n DEFINE_PROP_STRING(\"hv-vendor-id\", X86CPU, hyperv_vendor),\n- DEFINE_PROP_BOOL(\"cpuid-0xb\", X86CPU, enable_cpuid_0xb, true),\n+ DEFINE_PROP_BOOL(\"cpuid-0xb\", X86CPU, enable_cpuid_0xb, true,\n+ .flags = OBJ_PROP_FLAG_DEPRECATED),\n DEFINE_PROP_BOOL(\"x-vendor-cpuid-only\", X86CPU, vendor_cpuid_only, true),\n DEFINE_PROP_BOOL(\"x-vendor-cpuid-only-v2\", X86CPU, vendor_cpuid_only_v2, true),\n DEFINE_PROP_BOOL(\"x-amd-topoext-features-only\", X86CPU, amd_topoext_features_only, true),\n", "prefixes": [ "v2", "16/21" ] }