{"id":2224827,"url":"http://patchwork.ozlabs.org/api/patches/2224827/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260418223320.51330-38-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":"<20260418223320.51330-38-mohamed@unpredictable.fr>","list_archive_url":null,"date":"2026-04-18T22:33:19","name":"[37/38] whpx: i386: intercept CPUID 0xD too","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"c294954a4e09035935bd801a805b660efd141ec8","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/20260418223320.51330-38-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/2224827/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2224827/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=M4lO701f;\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 4fymlq5lrXz1yGt\n\tfor ; Sun, 19 Apr 2026 08:35:03 +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 1wEEFR-0000KW-Id; Sat, 18 Apr 2026 18:34:45 -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 1wEEFP-0008QK-9A\n for qemu-devel@nongnu.org; Sat, 18 Apr 2026 18:34:43 -0400","from p-east2-cluster1-host6-snip4-8.eps.apple.com ([57.103.76.101]\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 1wEEFN-0005G9-LL\n for qemu-devel@nongnu.org; Sat, 18 Apr 2026 18:34:42 -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 22EE718000E2; Sat, 18 Apr 2026 22:34:32 +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 EC7061800200; Sat, 18 Apr 2026 22:34:30 +0000 (UTC)"],"Dkim-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1776551680; x=1779143680;\n bh=Jrr2HbYb7vJ4wfjMglfbzSz74bDnkcrrxHCDfoOvAtE=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=M4lO701fFWvcEOuOyjRpdDBSe23wd7QSkE1l/XZNL2gmrvI31nP3d/By77vo8EI2CINCHzREld2sE/vj2ke+WUfkkvcu57r34nawYgHwOSP8mM+TUrxvDNP0l0BQ406DRm3t3Do1rS4J9cFW7TIk3x+Vfr339ONQkEwDmVck57fsE+jd9dal0+78v40QU8/1KIQwtuqNRPxSqkdy1T0q1EjIq0guoGq7K+o5yj9dZ9fv5oJMfj1NWNGk7VunXjor/jQcEyuuR1oS+NHSk2ksum/CI6ramd4ZLS5R+AVcHah+YBGa+U+Tn9ErPSA/u0ZgVKJf1h3xBaimS3fB04RTPA==","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 37/38] whpx: i386: intercept CPUID 0xD too","Date":"Sun, 19 Apr 2026 00:33:19 +0200","Message-ID":"<20260418223320.51330-38-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":"fYKU3_LEMS1ZFi5XLamKHf63XH9gci88","X-Authority-Info-Out":"v=2.4 cv=L6MQguT8 c=1 sm=1 tr=0 ts=69e406fe\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=7r31mvdhAh4OVJ8YR2QA:9","X-Proofpoint-ORIG-GUID":"fYKU3_LEMS1ZFi5XLamKHf63XH9gci88","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDE4MDIyOSBTYWx0ZWRfX/jUqKB2fB3bc\n FkRh0FzcuoYndeD7o0vv/8xYujs+fxoqktvTRt73s4JL3NdbI0jBNw+GHeGjtvfr/duo0v/LpMT\n IiL3Sefbq+HpeZTZEiN1i1P550dlc7tweFyFouhkGC0oCSz67qTf4OSf7rr0rd1Wtpo/PZpB46p\n zsOINere2YOnVqUJwdxvhF8oIsbVBVwUOlfTY1yssluroavK57BjELLJs2JRRx+wRbuybqXDco6\n 8qATku8WKITdd+OpdcNq+PSI/xLpb2wYUfghAnX1Qr4MZOE5Nh7/s4HUWpv/WN62KHlMHKMvmUG\n uXlGNwo0TwSFJDeXZm9aoGDEl7TmdhKcu9Vfr7TUqUjlhrOhl5qdUDGTVD6qtY=","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 phishscore=0\n malwarescore=0 mlxlogscore=869 adultscore=0 bulkscore=0 suspectscore=0\n mlxscore=0 spamscore=0 lowpriorityscore=0 clxscore=1030 classifier=spam\n authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000\n definitions=main-2604180229","Received-SPF":"pass client-ip=57.103.76.101;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.st.icloud.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, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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":"To have a more accurate CPU model.\n\nSigned-off-by: Mohamed Mediouni \n---\n target/i386/whpx/whpx-all.c | 10 +++++++++-\n 1 file changed, 9 insertions(+), 1 deletion(-)","diff":"diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c\nindex e79d085da8..d50f0a57fa 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -2565,6 +2565,14 @@ int whpx_vcpu_run(CPUState *cpu)\n }\n }\n \n+ /* CPUID[0xD,{1,2}].EBX are dynamic depending on guest features. */\n+ if (vcpu->exit_ctx.CpuidAccess.Rax == 0xd) {\n+ if (vcpu->exit_ctx.CpuidAccess.Rcx == 1\n+ || vcpu->exit_ctx.CpuidAccess.Rcx == 2) {\n+ reg_values[4].Reg64 = vcpu->exit_ctx.CpuidAccess.DefaultResultRbx;\n+ }\n+ }\n+\n /* OSXSAVE is dynamic. Do this instead of syncing CR4 */\n if (vcpu->exit_ctx.CpuidAccess.Rax == 1) {\n if (vcpu->exit_ctx.CpuidAccess.DefaultResultRcx\n@@ -2866,7 +2874,7 @@ int whpx_accel_init(AccelState *as, MachineState *ms)\n WHV_PROCESSOR_FEATURES_BANKS processor_features;\n WHV_PROCESSOR_PERFMON_FEATURES perfmon_features;\n \n- UINT32 cpuidExitList[] = {0x0, 0x1, 0x6, 0x7, 0xb, 0x14, 0x24, 0x29, 0x1E,\n+ UINT32 cpuidExitList[] = {0x0, 0x1, 0x6, 0x7, 0xb, 0xd, 0x14, 0x24, 0x29, 0x1E,\n 0x40000000, 0x40000001, 0x40000010, 0x80000000, 0x80000001,\n 0x80000002, 0x80000003, 0x80000004, 0x80000007, 0x80000008,\n 0x8000000A, 0x80000021, 0x80000022, 0xC0000000, 0xC0000001};\n","prefixes":["37/38"]}