{"id":2226946,"url":"http://patchwork.ozlabs.org/api/patches/2226946/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260422214225.2242-20-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":"<20260422214225.2242-20-mohamed@unpredictable.fr>","list_archive_url":null,"date":"2026-04-22T21:42:07","name":"[v3,19/37] 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/20260422214225.2242-20-mohamed@unpredictable.fr/mbox/","series":[{"id":501116,"url":"http://patchwork.ozlabs.org/api/series/501116/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=501116","date":"2026-04-22T21:41:48","name":"[v3,01/37] target/i386: emulate: include name of unhandled instruction","version":3,"mbox":"http://patchwork.ozlabs.org/series/501116/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2226946/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2226946/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=dq2FKB8m;\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 4g1CWW4nRkz1yD5\n\tfor ; Thu, 23 Apr 2026 07:47:51 +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 1wFfLr-0008Ls-BU; Wed, 22 Apr 2026 17:43:19 -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 1wFfLi-00087V-8n\n for qemu-devel@nongnu.org; Wed, 22 Apr 2026 17:43:10 -0400","from p-east2-cluster1-host1-snip4-10.eps.apple.com ([57.103.76.33]\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 1wFfLg-0007L0-J0\n for qemu-devel@nongnu.org; Wed, 22 Apr 2026 17:43:09 -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 00D1D1800C5C; Wed, 22 Apr 2026 21:43:05 +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 86A75180021C; Wed, 22 Apr 2026 21:43:03 +0000 (UTC)"],"X-ICL-Out-Info":"\n HUtFAUMHWwJACUgBTUQeDx5WFlZNRAJCTQFIHV8DWRxBAUkdXw9LVxQEFVwFVgZXFHkNXR1FDlYZWgxSD1sOHBZLWFUJCgZdGFgVVgl3HlwASx1XBFQfUxJVHR0LRUtAEwRJAU1fDl4fBBdGGVUERx5dVkAZGQJRHFYNV0NUBF9QSQxBUGxaAEcXSB1dGVlvUF0cDhhZG0AVXRFQGVYJXhUXHkFNWgJWTQVKA18BWwZCC0oCWQVZB14LSgdfGlkCXVQXWwxaDlYwTBZDH1IPWxNNGVEBUkVUAgdYRxRHDg8TTAtHAlo0Vh9UGVoD","Dkim-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1776894187; x=1779486187;\n bh=VwbCJMQOjdR/FYXB00bRp25vI47XadzN5iydMAM/HgY=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=dq2FKB8mCjD9MINwWiem2Gy9aOSMlGy3TfXyFYfuIkdZLPBJlStVstYkvYYUdMVpLy5srIfsOtjszScOoSdfB0b4sYL0Wma9AXMNGKNcole7akqhoolKgxKxpOECTw0pMOkUu5X0byYS1iTY41q5ugstbtl9gROZHgpZkY/9vEq8961TQ7A6pizlwCTYvt+ZTGFElb9Rw02VJIsI6E0Xl+YjAcJZMOMnDQMSUO4cfTln8G2tM5ZgXs/a6X+DMoWTi+d6ArlkN6X82fVj0Vk/65T5P6YiNJkrTtwlQplniixKZXfF4BSYpvihjKN9IvIBzSkzM5e2j4OxjeOwJ4qO7w==","mail-alias-created-date":"1752046281608","From":"Mohamed Mediouni ","To":"qemu-devel@nongnu.org","Cc":"Pedro Barbuda , qemu-arm@nongnu.org,\n Pierrick Bouvier ,\n Mohamed Mediouni ,\n Roman Bolshakov ,\n \"Michael S. Tsirkin\" , Wei Liu ,\n Phil Dennis-Jordan ,\n Peter Maydell , Zhao Liu ,\n Paolo Bonzini ","Subject":"[PATCH v3 19/37] whpx: i386: tighten APIC base validity check","Date":"Wed, 22 Apr 2026 23:42:07 +0200","Message-ID":"<20260422214225.2242-20-mohamed@unpredictable.fr>","X-Mailer":"git-send-email 2.50.1","In-Reply-To":"<20260422214225.2242-1-mohamed@unpredictable.fr>","References":"<20260422214225.2242-1-mohamed@unpredictable.fr>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDIyMDIxMSBTYWx0ZWRfXw0+xwYuvSptF\n RAv96mFmEuKyCO1ASgtbj7m39SwICKEAVzTzAqE9p03L5MhpIwIu6xwWPgX9MlRKps4nrTJexsn\n UWkMMp3vb77Zf+qOeH5bV1dO02MLg6LIlfXx1iHtBVFDLpJ1MHXe8wynnF/9Cxp31yVXP4Htmot\n Smfy2hT1ic+sNwk+2wp41l//HY37+T84fZuov135yecu7tRIfsCFwCELGA3tz0fBxGjgBd0TutT\n 7uZM4Unr5IozBJAXGQCv4d6L3p3CLtiIjBtkyD2H5rK/MpwEq2btx3MxP35fvsNW9FN9s7u9Thv\n wdHg1uBvNqjIsgSF++N7VfPuP6N7gPhhbvazqafFZ3nFV75yp6hOBlpGYnDYuE=","X-Proofpoint-GUID":"N_YulKQGm_yuOxyLLofGd58QM7H_uqQw","X-Proofpoint-ORIG-GUID":"N_YulKQGm_yuOxyLLofGd58QM7H_uqQw","X-Authority-Info-Out":"v=2.4 cv=VuUuwu2n c=1 sm=1 tr=0 ts=69e940eb\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","Received-SPF":"pass client-ip=57.103.76.33;\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_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n SPF_HELO_PASS=-0.001,\n SPF_PASS=-0.001 autolearn=unavailable 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 eecc7f48ed..521a94355d 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -2078,6 +2078,9 @@ 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":["v3","19/37"]}