{"id":2225087,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2225087/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260420104248.86702-13-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":"<20260420104248.86702-13-mohamed@unpredictable.fr>","date":"2026-04-20T10:42:22","name":"[v2,12/38] 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/1.1/people/91318/?format=json","name":"Mohamed Mediouni","email":"mohamed@unpredictable.fr"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260420104248.86702-13-mohamed@unpredictable.fr/mbox/","series":[{"id":500592,"url":"http://patchwork.ozlabs.org/api/1.1/series/500592/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500592","date":"2026-04-20T10:42:10","name":"WHPX x86 updates for QEMU 11.1","version":2,"mbox":"http://patchwork.ozlabs.org/series/500592/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2225087/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2225087/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=gZFvQfOt;\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 4fzhzQ59r8z1yCv\n\tfor ; Mon, 20 Apr 2026 20:48:18 +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 1wEm6M-00076F-Dq; Mon, 20 Apr 2026 06:43:38 -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 1wEm6D-0006xd-BZ\n for qemu-devel@nongnu.org; Mon, 20 Apr 2026 06:43:31 -0400","from p-west3-cluster5-host4-snip4-2.eps.apple.com ([57.103.72.35]\n helo=outbound.ms.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 1wEm6B-0000aK-LB\n for qemu-devel@nongnu.org; Mon, 20 Apr 2026 06:43:28 -0400","from outbound.ms.icloud.com (unknown [127.0.0.2])\n by p00-icloudmta-asmtp-us-west-3a-100-percent-1 (Postfix) with ESMTPS id\n 2E58F1800140; Mon, 20 Apr 2026 10:43:24 +0000 (UTC)","from localhost.localdomain (unknown [17.57.154.37])\n by p00-icloudmta-asmtp-us-west-3a-100-percent-1 (Postfix) with ESMTPSA id\n 5E0FA1800442; Mon, 20 Apr 2026 10:43:21 +0000 (UTC)"],"Dkim-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1776681806; x=1779273806;\n bh=oAkt/0X2iO3/a4xMYFMpgz9ibOxymnsHVlwLVxvLdU8=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=gZFvQfOtTG728Aiqh3Pxs+7eq2aA57ZZU/Egy1Y+k7Ux9i+eKytga4f+WS6bmGIdbIRFog5+nqKeEw1gEKIvBpyAhQG7u4A7Kc6zrPjTxvk4B77aGecuXxijBV6MVANNnuZqst74pR57zqOywL0huNJEiUxAgiZnUOA1/dhm86wN6/vSOy+OlT0It6YfsKUIYA58grHWh9PbLsTdI1Ny7Y7YfKyIYteTG8IraDGWuQkWW+ePC/Ppr9w9KbIBIoEdSrwZcws0aj7DF7GH8SymAS7VJ4/WD9hj8IcvlvA5v+BXT7k5AfJVPes/C3zlpFxT9IuGrm/t1GTHXd+jWedu8g==","mail-alias-created-date":"1752046281608","From":"Mohamed Mediouni ","To":"qemu-devel@nongnu.org","Cc":"qemu-arm@nongnu.org, Mohamed Mediouni ,\n Paolo Bonzini ,\n Phil Dennis-Jordan ,\n Roman Bolshakov ,\n Pierrick Bouvier ,\n Pedro Barbuda , Wei Liu ,\n \"Michael S. Tsirkin\" ,\n Peter Maydell , Zhao Liu ","Subject":"[PATCH v2 12/38] whpx: i386: disable enlightenments and LAPIC for\n isapc","Date":"Mon, 20 Apr 2026 12:42:22 +0200","Message-ID":"<20260420104248.86702-13-mohamed@unpredictable.fr>","X-Mailer":"git-send-email 2.50.1","In-Reply-To":"<20260420104248.86702-1-mohamed@unpredictable.fr>","References":"<20260420104248.86702-1-mohamed@unpredictable.fr>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDIwMDEwNCBTYWx0ZWRfXxjvbCepagAjn\n ZdMVIr4oj3Snew99sTCdX+R4pAd8RUzhrxURYc3GAKlwjDb6npkQeOi4ux+CRQZrldl3UY45Bhj\n 8M5ilmpJ8ayKheufeK8rEpR79gxizl7ZkahRX/gJt2euzblbYPP5hUr1IKZiUMbPu4AQmHUL7JS\n EtjY45v8xrSxYQTnjX2Aot/IBCPzTCSl4u5ilElkW6B05XmeAMocSq4Ptu1FtswIIKDOzj+4iAr\n bnHvSdQbxnJLH9G1Nw9xJO6Y6vDQuihnMT3sqO/tc5KzP3fy1N5Zf4yPbYctP2QIDz1kMaOZT0H\n T4VH0zE8Kh6qd5iuOSQlXba1jMsI7xTqE/Ao3DyDYjH34x/JmhmOcWz6hjRrGw=","X-Authority-Info-Out":"v=2.4 cv=Z+zh3XRA c=1 sm=1 tr=0 ts=69e6034d\n cx=c_apl:c_pps:t_out a=qkKslKyYc0ctBTeLUVfTFg==:117 a=A5OVakUREuEA:10\n a=VkNPw1HP01LnGYTKEx00:22 a=kaNVauZA35-AGszze7oA:9","X-Proofpoint-ORIG-GUID":"dHfS9Sf_op2BC3kfYYMOpZIEm8yd27jN","X-Proofpoint-GUID":"dHfS9Sf_op2BC3kfYYMOpZIEm8yd27jN","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=2026-04-20_02,2026-04-17_04,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=notspam policy=default score=0 bulkscore=0\n mlxlogscore=891 spamscore=0 phishscore=0 clxscore=1030 adultscore=0\n suspectscore=0 malwarescore=0 lowpriorityscore=0 mlxscore=0 classifier=spam\n authscore=0 adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000\n definitions=main-2604200104","Received-SPF":"pass client-ip=57.103.72.35;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.ms.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 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":"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":["v2","12/38"]}