[{"id":3675930,"web_url":"http://patchwork.ozlabs.org/comment/3675930/","msgid":"","list_archive_url":null,"date":"2026-04-10T15:15:39","subject":"Re: [PATCH 1/2] accel/mshv: fix ioeventfd deassignment to forward\n correct datamatch value","submitter":{"id":90753,"url":"http://patchwork.ozlabs.org/api/people/90753/","name":"Magnus Kulke","email":"magnuskulke@linux.microsoft.com"},"content":"On Thu, Apr 09, 2026 at 11:53:06AM +0000, Aastha Rawat wrote:\n> unregister_ioevent() is not forwarding the datamatch (queue index) to\n> the mshv driver, causing only the first VirtIO-MMIO queue to be\n> deassigned correctly. Subsequent queues fail with `-ENOENT`, triggering\n> a fatal abort().\n> \n> This failure was discovered while booting arm64 EDK2 firmware with mshv\n> accel.\n> \n\nLooks good, I tested the patch on x86 w/ virtio queues.\n\nReviewed-by: Magnus Kulke ","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 (1024-bit key;\n unprotected) header.d=linux.microsoft.com header.i=@linux.microsoft.com\n header.a=rsa-sha256 header.s=default header.b=lILJrZXU;\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=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists.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 4fsgPp3PK5z1yGb\n\tfor ; Sat, 11 Apr 2026 01:16:44 +1000 (AEST)","from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from )\n\tid 1wBDaL-0007LP-Gp; Fri, 10 Apr 2026 11:15:54 -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 1wBDaE-0007KU-Lh\n for qemu-devel@nongnu.org; Fri, 10 Apr 2026 11:15:48 -0400","from linux.microsoft.com ([13.77.154.182])\n by eggs.gnu.org with esmtp (Exim 4.90_1)\n (envelope-from ) id 1wBDaD-0005gc-5N\n for qemu-devel@nongnu.org; Fri, 10 Apr 2026 11:15:46 -0400","from example.com (unknown [167.220.208.74])\n by linux.microsoft.com (Postfix) with ESMTPSA id EC62720B710C;\n Fri, 10 Apr 2026 08:15:42 -0700 (PDT)"],"DKIM-Filter":"OpenDKIM Filter v2.11.0 linux.microsoft.com EC62720B710C","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com;\n s=default; t=1775834143;\n bh=TjmSR5ot8qnJB+7P8gdzM3ES2sXgm7IPqX+SRJryobY=;\n h=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n b=lILJrZXUflKUl6MZd4wPHHprqxNQXLAB4qH3iKZzNQkgsHpwIScEnXE7xz7BnnpNt\n /LpA45Z6WhjbmzdzhOVT2+rSU4sARoacVgjtPBWp7Om27USIc0x/vVMC4kP/rZegnS\n Y7E+pBZMlF/4b1Aj+Y9UaCfGdDzz1AmDE1eFFhUQ=","Date":"Fri, 10 Apr 2026 17:15:39 +0200","From":"Magnus Kulke ","To":"Aastha Rawat ","Cc":"qemu-devel@nongnu.org, Wei Liu ","Subject":"Re: [PATCH 1/2] accel/mshv: fix ioeventfd deassignment to forward\n correct datamatch value","Message-ID":"","References":"<20260409-fix_ioevent-v1-0-053b810ae6fb@linux.microsoft.com>\n <20260409-fix_ioevent-v1-1-053b810ae6fb@linux.microsoft.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=us-ascii","Content-Disposition":"inline","In-Reply-To":"<20260409-fix_ioevent-v1-1-053b810ae6fb@linux.microsoft.com>","Received-SPF":"pass client-ip=13.77.154.182;\n envelope-from=magnuskulke@linux.microsoft.com; helo=linux.microsoft.com","X-Spam_score_int":"-42","X-Spam_score":"-4.3","X-Spam_bar":"----","X-Spam_report":"(-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3,\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"}}]