{"id":2224841,"url":"http://patchwork.ozlabs.org/api/patches/2224841/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260418223320.51330-20-mohamed@unpredictable.fr/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","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":"<20260418223320.51330-20-mohamed@unpredictable.fr>","list_archive_url":null,"date":"2026-04-18T22:33:01","name":"[19/38] whpx: i386: tighten APIC base validity check","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"a8f5206fdf2f9421c2eb059c06167609ab1b781d","submitter":{"id":91318,"url":"http://patchwork.ozlabs.org/api/people/91318/?format=json","name":"Mohamed Mediouni","email":"mohamed@unpredictable.fr"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260418223320.51330-20-mohamed@unpredictable.fr/mbox/","series":[{"id":500475,"url":"http://patchwork.ozlabs.org/api/series/500475/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500475","date":"2026-04-18T22:32:54","name":"WHPX x86 updates for QEMU 11.1","version":1,"mbox":"http://patchwork.ozlabs.org/series/500475/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2224841/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2224841/checks/","tags":{},"related":[],"headers":{"Return-Path":"","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=unpredictable.fr header.i=@unpredictable.fr\n header.a=rsa-sha256 header.s=sig1 header.b=Itbuvod/;\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=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists1p.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 4fympG0QSvz1yDF\n\tfor ; Sun, 19 Apr 2026 08:37:10 +1000 (AEST)","from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from )\n\tid 1wEEFC-00075r-7E; Sat, 18 Apr 2026 18:34:30 -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 )\n id 1wEEEm-0006Ke-P5\n for qemu-devel@nongnu.org; Sat, 18 Apr 2026 18:34:10 -0400","from p-east2-cluster3-host5-snip4-3.eps.apple.com ([57.103.77.194]\n helo=outbound.st.icloud.com)\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from )\n id 1wEEEk-0004yD-MD\n for qemu-devel@nongnu.org; Sat, 18 Apr 2026 18:34:04 -0400","from outbound.st.icloud.com (unknown [127.0.0.2])\n by p00-icloudmta-asmtp-us-east-1a-100-percent-1 (Postfix) with ESMTPS id\n 2CB981800208; Sat, 18 Apr 2026 22:34:00 +0000 (UTC)","from localhost.localdomain (unknown [17.42.251.67])\n by p00-icloudmta-asmtp-us-east-1a-100-percent-1 (Postfix) with ESMTPSA id\n 09F381800219; Sat, 18 Apr 2026 22:33:57 +0000 (UTC)"],"Dkim-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1776551641; x=1779143641;\n bh=XYfcVLNP4XKUf3qEh2m3HXpH6E0h6AgTscZ6AUjxiTg=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=Itbuvod/Rjn/3BdJcy93m+CoKuhi9XYM88j7kIfjxudpMd7BpjbuXFRr/AyVvz0pJMlDAZAEkYPPjVxp8cRdPbd/QaJI2P5Dl/1Cd/F3PUdKujGU9vA8FK62NgN3AL02KBLl+wtZPFh9NTUCS+ZngE20Jt/g+bseVXlhm+tqjYo+Iu49V4onAX8moW8d0JWEg4GxMP0i6MRIErbiAoOICGtX8luiD3+Na6qId+KIjH9/+Le+pnpzCAQKIs5urv/wQPRXnnxwE1tZZAaQgE55TJwNBpUzA5u17R7prdE16DH2Q1o/eB4q9SsEqQ0M4Qmr1tH4GyGIPqkvjyKxHc9QUg==","mail-alias-created-date":"1752046281608","From":"Mohamed Mediouni ","To":"qemu-devel@nongnu.org","Cc":"Mohamed Mediouni ,\n \"Michael S. Tsirkin\" , Paolo Bonzini ,\n Zhao Liu , Pedro Barbuda ,\n Roman Bolshakov , qemu-arm@nongnu.org,\n Pierrick Bouvier ,\n Peter Maydell , Wei Liu ,\n Phil Dennis-Jordan ","Subject":"[PATCH 19/38] whpx: i386: tighten APIC base validity check","Date":"Sun, 19 Apr 2026 00:33:01 +0200","Message-ID":"<20260418223320.51330-20-mohamed@unpredictable.fr>","X-Mailer":"git-send-email 2.50.1","In-Reply-To":"<20260418223320.51330-1-mohamed@unpredictable.fr>","References":"<20260418223320.51330-1-mohamed@unpredictable.fr>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Proofpoint-GUID":"AoEA7PRthxS3YNrHZnqeqpVyNva14PgQ","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDE4MDIyOCBTYWx0ZWRfXzYRUxd/l6Amp\n z69Nk+1AD+L63PF+8FOp4oxz+p30RFgDMPH3UtYu2Tl32VnvCPfwANJcXo4LAJrVtfHGFpoqSUM\n iXsXRp3RpaLI4fVo2A0x+vemZXM2i8f3PeLm0QR+i7NSHHU1qSwD2aMEpbcgsWklE+gErD7UAov\n SF9iEBQ+OLymyNFrno0pGy1d5aFjjKcN6jlYk+MMd0JtxYWw2MS0OxdwBe+qT8ZFk2PJBAcpO0y\n 2JP5TsSeLDQTv8Lcf31XyvbNeITDtjorQxhm2Mn4Yfgmh9ULfsat328PyXVduTUvV2ho8X3NOy/\n 3AtZ/r+tzsJ6KYc10hL1Lo/mSjxGZIVPYxhLpf7nfjFawK4s75wuuNwq+9f4p0=","X-Proofpoint-ORIG-GUID":"AoEA7PRthxS3YNrHZnqeqpVyNva14PgQ","X-Authority-Info-Out":"v=2.4 cv=T9mBjvKQ c=1 sm=1 tr=0 ts=69e406d9\n cx=c_apl:c_pps:t_out a=YrL12D//S6tul8v/L+6tKg==:117\n a=YrL12D//S6tul8v/L+6tKg==:17 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=uh2sygq7LFHjsVUyvz4A:9","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-18_06,2026-04-17_04,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=notspam policy=default score=0 spamscore=0\n bulkscore=0 mlxlogscore=687 clxscore=1030 lowpriorityscore=0 phishscore=0\n mlxscore=0 adultscore=0 malwarescore=0 suspectscore=0 classifier=spam\n authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000\n definitions=main-2604180228","Received-SPF":"pass client-ip=57.103.77.194;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.st.icloud.com","X-Spam_score_int":"-27","X-Spam_score":"-2.8","X-Spam_bar":"--","X-Spam_report":"(-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001,\n RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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 ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"Signed-off-by: Mohamed Mediouni \n---\n target/i386/whpx/whpx-all.c | 3 +++\n 1 file changed, 3 insertions(+)","diff":"diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c\nindex f856022a87..f31eabce37 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -1993,6 +1993,9 @@ int whpx_vcpu_run(CPUState *cpu)\n \n if (vcpu->exit_ctx.MsrAccess.MsrNumber == MSR_IA32_APICBASE) {\n is_known_msr = 1;\n+ if (val & MSR_IA32_APICBASE_RESERVED) {\n+ x86_emul_raise_exception(&X86_CPU(cpu)->env, EXCP0D_GPF, 0);\n+ }\n if (!vcpu->exit_ctx.MsrAccess.AccessInfo.IsWrite) {\n /* Read path unreachable on Hyper-V */\n abort();\n","prefixes":["19/38"]}