{"id":2224820,"url":"http://patchwork.ozlabs.org/api/patches/2224820/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260418223320.51330-13-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":"<20260418223320.51330-13-mohamed@unpredictable.fr>","list_archive_url":null,"date":"2026-04-18T22:32:54","name":"[12/38] whpx: i386: disable enlightenments and LAPIC for isapc","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"5a135a853803548debdbc165f2cd7257af75108d","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/20260418223320.51330-13-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/2224820/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2224820/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=KVy+KVNE;\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 4fymlH5Tmcz1yJB\n\tfor ; Sun, 19 Apr 2026 08:34:35 +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 1wEEEc-0006EC-2T; Sat, 18 Apr 2026 18:33:54 -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 1wEEEa-0006B7-DH\n for qemu-devel@nongnu.org; Sat, 18 Apr 2026 18:33:52 -0400","from p-east2-cluster3-host2-snip4-8.eps.apple.com ([57.103.77.229]\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 1wEEEX-0004uH-FA\n for qemu-devel@nongnu.org; Sat, 18 Apr 2026 18:33:51 -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 7719218000B2; Sat, 18 Apr 2026 22:33:47 +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 5E0181800238; Sat, 18 Apr 2026 22:33:45 +0000 (UTC)"],"Dkim-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1776551628; x=1779143628;\n bh=oAkt/0X2iO3/a4xMYFMpgz9ibOxymnsHVlwLVxvLdU8=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=KVy+KVNEk6NliTfmwz8/cdjHI5v3F1WSwsofUYkrQx8HFfsehf5j7d1HoLxyS7rzag0X4Ag/MkVtrclkYLQ+pVRuOtXWeptOCv85HOCJAl/15b0u4BwDmkJmr3aCiEhO6WuOzZyutpu7UbJzlX2/y2bCB0r139sWikqQzTjkA5pFyyuVyMC2ZhsMr3wwAP1mk9ugEEp7MB90pS1r5X2droVNST+v7xEeCa/pzhq12g+pUthzuf8nA/7PtEXCWl38ZuTM472hPj+b/bwrTodAcU2kxDL5t6k8cqyO1ls4WhAqfsjLJAcA4EdVxcifWfO1Sl+z1LGmk644UmhgitRF4Q==","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 12/38] whpx: i386: disable enlightenments and LAPIC for isapc","Date":"Sun, 19 Apr 2026 00:32:54 +0200","Message-ID":"<20260418223320.51330-13-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-Spam-Details-Enc":"AW1haW4tMjYwNDE4MDIyOCBTYWx0ZWRfXwmVNFf7K1e+I\n NenzSUQQ4oWTwFBanZNmD4INnlZ65fvlvwh8ioW1fd7bK+DLzifkCP9LsA+OOJV8YALu3f/h0j7\n sbuCbDUrO3uFuZH6Qup3QmskMwq75sKoj0/gMT9RzTRSOYsvVeifTgq5cODiJZPG6oC6ipSDWUW\n q4qaEMeyBJHE36c+ksWLl3QnBrdPtrZyTS62/VCpRUfEWGLOb09Ox14mL6a4YjCv+0L5ib882Se\n NPavjrplfcQBvs+E88EpozpAYjD9krFSlUkIQyEfVi/AONLzs9KtMoiA49UaZQNQ9tMEHDoPma1\n rrXEQ5jA4j3IRe5qLYJxkXJ3a5Rsf+Htke7Yr5v2wnwgbs3SsiIC7MwTEQVlyk=","X-Proofpoint-ORIG-GUID":"GP6nFPvUdfyTmlR7fKenDHqNKTmmGWVI","X-Authority-Info-Out":"v=2.4 cv=KJ9XzVFo c=1 sm=1 tr=0 ts=69e406cc\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=kaNVauZA35-AGszze7oA:9","X-Proofpoint-GUID":"GP6nFPvUdfyTmlR7fKenDHqNKTmmGWVI","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 adultscore=0\n suspectscore=0 clxscore=1030 mlxlogscore=890 lowpriorityscore=0\n malwarescore=0 bulkscore=0 mlxscore=0 spamscore=0 phishscore=0\n classifier=spam authscore=0 adjust=0 reason=mlx scancount=1\n engine=8.22.0-2601150000 definitions=main-2604180228","Received-SPF":"pass client-ip=57.103.77.229;\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, 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":"The isapc machine doesn't have an APIC. And Hyper-V enlightenments\ndon't sound too useful to have there so disable those.\n\nSigned-off-by: Mohamed Mediouni \n---\n target/i386/whpx/whpx-all.c | 8 ++++++++\n 1 file changed, 8 insertions(+)","diff":"diff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c\nindex 4deeffbcfc..d38b83d274 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -2470,6 +2470,14 @@ int whpx_accel_init(AccelState *as, MachineState *ms)\n goto error;\n }\n \n+ /* for isapc, disable Hyper-V enlightenments and LAPIC */\n+ if (!strcmp(MACHINE_GET_CLASS(ms)->name, \"isapc\")) {\n+ whpx->kernel_irqchip_allowed = false;\n+ whpx->kernel_irqchip_required = false;\n+ whpx->hyperv_enlightenments_allowed = false;\n+ whpx->hyperv_enlightenments_required = false;\n+ }\n+\n whpx->mem_quota = ms->ram_size;\n \n hr = whp_dispatch.WHvGetCapability(\n","prefixes":["12/38"]}