From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3096FF459E9 for ; Fri, 10 Apr 2026 15:16:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wBDaL-0007LP-Gp; Fri, 10 Apr 2026 11:15:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wBDaE-0007KU-Lh for qemu-devel@nongnu.org; Fri, 10 Apr 2026 11:15:48 -0400 Received: from linux.microsoft.com ([13.77.154.182]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wBDaD-0005gc-5N for qemu-devel@nongnu.org; Fri, 10 Apr 2026 11:15:46 -0400 Received: from example.com (unknown [167.220.208.74]) by linux.microsoft.com (Postfix) with ESMTPSA id EC62720B710C; 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; s=default; t=1775834143; bh=TjmSR5ot8qnJB+7P8gdzM3ES2sXgm7IPqX+SRJryobY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lILJrZXUflKUl6MZd4wPHHprqxNQXLAB4qH3iKZzNQkgsHpwIScEnXE7xz7BnnpNt /LpA45Z6WhjbmzdzhOVT2+rSU4sARoacVgjtPBWp7Om27USIc0x/vVMC4kP/rZegnS 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 correct datamatch value Message-ID: References: <20260409-fix_ioevent-v1-0-053b810ae6fb@linux.microsoft.com> <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; 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, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, 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: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Thu, Apr 09, 2026 at 11:53:06AM +0000, Aastha Rawat wrote: > unregister_ioevent() is not forwarding the datamatch (queue index) to > the mshv driver, causing only the first VirtIO-MMIO queue to be > deassigned correctly. Subsequent queues fail with `-ENOENT`, triggering > a fatal abort(). > > This failure was discovered while booting arm64 EDK2 firmware with mshv > accel. > Looks good, I tested the patch on x86 w/ virtio queues. Reviewed-by: Magnus Kulke