{"id":2222754,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2222754/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260413152326.63738-12-mohamed@unpredictable.fr/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.1/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":""},"msgid":"<20260413152326.63738-12-mohamed@unpredictable.fr>","date":"2026-04-13T15:23:23","name":"[v10,11/14] 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/1.1/people/91318/?format=json","name":"Mohamed Mediouni","email":"mohamed@unpredictable.fr"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260413152326.63738-12-mohamed@unpredictable.fr/mbox/","series":[{"id":499721,"url":"http://patchwork.ozlabs.org/api/1.1/series/499721/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499721","date":"2026-04-13T15:23:12","name":"whpx: i386: bug fixes, feature probing and CPUID","version":10,"mbox":"http://patchwork.ozlabs.org/series/499721/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2222754/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2222754/checks/","tags":{},"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=Adyeh4Nf;\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 4fvWRJ3M0mz1y2d\n\tfor ; Tue, 14 Apr 2026 01:24:28 +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 1wCJ8t-0005gK-TA; Mon, 13 Apr 2026 11:24:03 -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 1wCJ8k-0005Z7-92\n for qemu-devel@nongnu.org; Mon, 13 Apr 2026 11:23:55 -0400","from qs-2005b-snip4-7.eps.apple.com ([57.103.86.148]\n helo=outbound.qs.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 1wCJ8h-0000WH-5V\n for qemu-devel@nongnu.org; Mon, 13 Apr 2026 11:23:53 -0400","from outbound.qs.icloud.com (unknown [127.0.0.2])\n by p00-icloudmta-asmtp-us-east-2d-100-percent-10 (Postfix) with ESMTPS id\n 52D4E180009E; Mon, 13 Apr 2026 15:23:47 +0000 (UTC)","from localhost.localdomain (unknown [17.57.155.37])\n by p00-icloudmta-asmtp-us-east-2d-100-percent-10 (Postfix) with ESMTPSA id\n C765B1800110; Mon, 13 Apr 2026 15:23:44 +0000 (UTC)"],"Dkim-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1776093830; x=1778685830;\n bh=zcmYD8sBYnUVL4imQw8BkyvhG03VGFAjf3wzcMF8rtM=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=Adyeh4NfyAgViKt453C0tTDclfCKyQM+GTM732ikFqb2WyDUon8HAcT0MoZrZE58bgGsz1GqJA7MdSrQVg/UoXkX6AKj1xF36tNgyGj1S5/LN4hjtZ2ceHgjG8jDOBcti8naAmVtDZ3fjUKPWeAhquQ+xZ9qW4VbBIl+auZnYxcnGIewn/RSEyhG2ubn09Oykv394R7JChdIYq9tda+kHtRPNNPdFHDOqtnY3k6p1oiglSVsn2uwRajiEQkTB+0MOqXYcDaZPBzI+dz+rmZEkWOvOtZ1SxGluvFulN/xzdpk48e3nbqYt1v3sKe1pSUIQhgjW/O64nlBBlYgrqo7rA==","mail-alias-created-date":"1752046281608","From":"Mohamed Mediouni ","To":"qemu-devel@nongnu.org","Cc":"Zhao Liu , \"Michael S. Tsirkin\" ,\n Paolo Bonzini , Wei Liu ,\n Roman Bolshakov ,\n Pedro Barbuda ,\n Mohamed Mediouni ,\n Phil Dennis-Jordan ","Subject":"[PATCH v10 11/14] whpx: i386: disable enlightenments and LAPIC for\n isapc","Date":"Mon, 13 Apr 2026 17:23:23 +0200","Message-ID":"<20260413152326.63738-12-mohamed@unpredictable.fr>","X-Mailer":"git-send-email 2.50.1","In-Reply-To":"<20260413152326.63738-1-mohamed@unpredictable.fr>","References":"<20260413152326.63738-1-mohamed@unpredictable.fr>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Proofpoint-ORIG-GUID":"IomtRxvvHBFy-ayAdQPaVgRnqam3McJY","X-Proofpoint-GUID":"IomtRxvvHBFy-ayAdQPaVgRnqam3McJY","X-Authority-Info-Out":"v=2.4 cv=QKdlhwLL c=1 sm=1 tr=0 ts=69dd0a84\n cx=c_apl:c_pps:t_out a=bsP7O+dXZ5uKcj+dsLqiMw==:117\n a=bsP7O+dXZ5uKcj+dsLqiMw==:17 a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=kaNVauZA35-AGszze7oA:9","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDEzMDE1MSBTYWx0ZWRfX3cjP3fTcvClk\n F7N84gVBTHTP/jBI38d3D3cZnPpBKcgdeWp2yc5X6s3qyJGrZpwlpcK3sOO0daBpZp2pk9SJMUb\n nEqCAi+Yk6wZ2JMLlU2michPgPQZ+jPFDPXVEbGdYRs9JIrqvQN4+GCSzA2Lq54ovgI/zkUQBqe\n bw1IHC81FBu7Qw/ehu4xQZWVyMvh4Maa7Aewd6jSFGaqThb2n6BEVBGP1iubVOb1tbfh8kW6BNf\n ys4CMR++e85GmgG+sLkNEE9UFGYRVlnIKiSGmQWbCPmlRsShs2NzCA/D/nXy6PR5EVC+V809dUd\n 7HV1vYKgIGcPtH2uyH9iBrsYRKtNRz6twq/EtOCg6UC6OF+w5QHyw3zmkt2KAo=","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=2026-04-13_03,2026-04-13_04,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=notspam policy=default score=0 mlxlogscore=783\n malwarescore=0 adultscore=0 spamscore=0 mlxscore=0\n lowpriorityscore=0\n bulkscore=0 clxscore=1030 phishscore=0 suspectscore=0 classifier=spam\n authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000\n definitions=main-2604130151","Received-SPF":"pass client-ip=57.103.86.148;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.qs.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 61aec98e66..7a31dc6427 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":["v10","11/14"]}