{"id":2225098,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2225098/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260420104248.86702-39-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":"<20260420104248.86702-39-mohamed@unpredictable.fr>","date":"2026-04-20T10:42:48","name":"[v2,38/38] whpx: i386: documentation update","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"2fc0e9c7bcfbdb286ac9fd0e5c14a16bbf6b53fa","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/20260420104248.86702-39-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/2225098/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2225098/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=bBR1Tk3w;\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 4fzj044YBcz1yCv\n\tfor ; Mon, 20 Apr 2026 20:48:52 +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 1wEm7I-0000nZ-MX; Mon, 20 Apr 2026 06:44:36 -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 1wEm7G-0000a8-LJ\n for qemu-devel@nongnu.org; Mon, 20 Apr 2026 06:44:34 -0400","from p-west3-cluster4-host12-snip4-10.eps.apple.com ([57.103.74.231]\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 1wEm7E-0000r8-T8\n for qemu-devel@nongnu.org; Mon, 20 Apr 2026 06:44:34 -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 94429180014D; Mon, 20 Apr 2026 10:44:28 +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 B0FCE1800151; Mon, 20 Apr 2026 10:44:25 +0000 (UTC)"],"Dkim-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=unpredictable.fr;\n s=sig1; t=1776681871; x=1779273871;\n bh=aRSWuZJ+0O4EI30ImauiiaFewa0d6ZTDxWu6Xb9/aUo=;\n h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=bBR1Tk3wovzThNLzZejOST9s2HHaLcMZsFhOjpc2pij77JYr/aZ0GlQnhhBO6ch0KCM/MmHmGWwLCi/IiIVULN6/31qAMsoRapU6scCqwrCRF899LOceVznS6zUo89LvA7qZEcfsF7JDeVAovPYf9jmLIqMfJyU93qA2ufAzydKK34M+rMRG/zuE9xcVAU5me/gg158O3S8jcITQ5D/D5D85Ojz8evgA3wIThzLlul9hKLPUqyJjdzRSQCOo8G+IBW/SbzeBR/frBJVgfY0wcB9wz4uSMJlYH6ZMmoKqBR/qc/KEp0/T1/1KEUWa1DMOv8Eo+r0drEfSbjgY6SJwng==","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 38/38] whpx: i386: documentation update","Date":"Mon, 20 Apr 2026 12:42:48 +0200","Message-ID":"<20260420104248.86702-39-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-GUID":"K6H8eRIvVlEItfTGK27ckSJegMdQQonL","X-Authority-Info-Out":"v=2.4 cv=QJVlhwLL c=1 sm=1 tr=0 ts=69e6038e\n cx=c_apl:c_pps:t_out a=qkKslKyYc0ctBTeLUVfTFg==:117 a=A5OVakUREuEA:10\n a=VkNPw1HP01LnGYTKEx00:22 a=w2p0zGFWpCDavkAFAbUA:9","X-Proofpoint-ORIG-GUID":"K6H8eRIvVlEItfTGK27ckSJegMdQQonL","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDIwMDEwNCBTYWx0ZWRfX0JuxT9pQ6Def\n ELEfCojMXbmuukJBg6lx7/erIvqqQfF1NXw7lFt+0/HVNRGkUFqppTAiWJVpM9Nkq5R2qnP4j9C\n syIEBVctNzpY4oAYvoX1kqLG2m7R/8u41gSRyZImuCfXuG5TQhr3irQ4/s3NG38deBSMyQgFc2/\n rEWDCQDYFKTlIynPT6cIQZZyTyh2TCu6rHkrAztysGZJrvDW0SOMIlNLvzJISXxgFS6A00S39Sq\n +qtKnqW2P3gneYRUnX5bY9pBoBewrj7ciMDy05+etD0/PtqkQT3ME+WjGB4whek0GjlyQhQa7gQ\n /gQluy2tnMfQxxUdMGXEi/FYSXi6gzuiPsRmCK9dTIZ29GqEHa0su8qYCWwChU=","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 adultscore=0\n suspectscore=0 clxscore=1030 lowpriorityscore=0 spamscore=0 mlxscore=0\n phishscore=0 bulkscore=0 mlxlogscore=690 malwarescore=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=57.103.74.231;\n envelope-from=mohamed@unpredictable.fr; helo=outbound.ms.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_H3=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 docs/system/whpx.rst | 30 +++++-------------------------\n 1 file changed, 5 insertions(+), 25 deletions(-)","diff":"diff --git a/docs/system/whpx.rst b/docs/system/whpx.rst\nindex 3e1979028c..b7006f6c2e 100644\n--- a/docs/system/whpx.rst\n+++ b/docs/system/whpx.rst\n@@ -96,38 +96,18 @@ MMX, SSE or AVX instructions for access to MMIO memory ranges.\n Attempts to run such guests will result in an ``Unimplemented handler``\n warning for MMX and a failure to decode for newer instructions.\n \n-``-M isapc``\n-^^^^^^^^^^^^\n-\n-``-M isapc`` doesn't disable the Hyper-V LAPIC on its own yet. To\n-be able to use that machine, use ``-accel whpx,hyperv=off,kernel-irqchip=off``.\n-\n-However, in QEMU 11.0, the guest will still be a 64-bit x86\n-ISA machine with all the corresponding CPUID leaves exposed.\n-\n-gdbstub\n-^^^^^^^\n-\n-As save/restore of xsave state is not currently present, state\n-exposed through GDB will be incomplete.\n-\n-The same also applies to ``info registers``.\n-\n-``-cpu type`` ignored\n-^^^^^^^^^^^^^^^^^^^^^\n-\n-In this release, -cpu is an ignored argument. \n-\n PIC interrupts on Windows 10\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n \n On Windows 10, a legacy PIC interrupt injected does not wake the guest\n from an HLT when using the Hyper-V provided interrupt controller.\n \n-This has been addressed in QEMU 11.0 on Windows 11 platforms but\n-functionality to make it available on Windows 10 isn't present.\n+As such, on Windows 10, using the Hyper-V interrupt controller is\n+disabled by default. You can enable it via ``-M q35,pic=off`` which\n+disables the PIC. In that configuration, using a UEFI is recommended.\n \n-Workaround: for affected use cases, use ``-M kernel-irqchip=off``.\n+On this release, ``-M kernel-irqchip=`` is not expected to be manually\n+set during normal operation. It remains as a debugging option.\n \n Known issues on Windows 11\n ^^^^^^^^^^^^^^^^^^^^^^^^^^\n","prefixes":["v2","38/38"]}