From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DEA622741DB for ; Tue, 15 Apr 2025 23:44:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744760692; cv=none; b=TFDuFsOpnYfdwBfyFUdoph+MIBB1yWTaHNqtoqW7Xw4eMxwY/TJ8NtW4YZlsAL721sdamIZz5pMew3dL7ap+QRz5FnIiK+0PLuU6dBKSA0/Odd4tTQRwnW2aHTJ3rPS2tSEzvB2ZVsakbzEooVK+uCvOi+XEHVmyz7NpRFcr8fU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744760692; c=relaxed/simple; bh=4fFhy1bv3fjXJ2gbAVmeQDcY3EdBueBEOE7YRGXbX7k=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=ns42C6H6wbq2WgKmlim4/zUCxq/IpKdoZC8kraE14BLKZ9mOx0xk0Y+QXHa8SH2qJ9Ni8wQ147oh5rlAXuhODR65dRakxKSNXG+xpwOy+Q5bZEeAQ8zdpKNNElIuD3ue9nteqZZpWchckdwQuF84W5g08WqHfmmFi/IX/aSVG9c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BKb0G2aF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="BKb0G2aF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 389EFC4CEE7; Tue, 15 Apr 2025 23:44:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744760691; bh=4fFhy1bv3fjXJ2gbAVmeQDcY3EdBueBEOE7YRGXbX7k=; h=Date:From:To:Cc:Subject:From; b=BKb0G2aFnEt+XoEOyYfPViJo7uCR9hEbrFCn5iDUzpj/dgR6XQSPOKfmBnbg4wYKq c2m8fY5Wm8Ma0GyCshQDPZTnppJjqhXmDeeqHnkdS5+60DKXahlOjkTS2lAMnIx7Ni Z/WY5xboHlRuZb9p/07U8ThrPYlbsgGZ+APFogfMoyUz1fiToukbxLK5Sf7xNTNldL iF+9KgpYMxiXsbrN41FE4/WOXJp4n6kTjz7eN+7V+or87y7ZyMeX7udKEtrciB6I6D um04q5zt45jNj74mjQQYdPB7Nw9xyvmkDPe+G7lCdpZ9YxpttyW3C636y6JkffndQ9 PEH0RrTHTbCtg== Date: Tue, 15 Apr 2025 18:44:49 -0500 From: Bjorn Helgaas To: linux-pci@vger.kernel.org Cc: Alex Williamson , Athul Krishna Subject: [bugzilla-daemon@kernel.org: [Bug 220010] New: Regression: 6.14.2 breaks PCI passthrough, qemu-system-x86_64: no available reset mechanism] Message-ID: <20250415234449.GA45571@bhelgaas> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Forwarding to linux-pci just for completeness. https://git.kernel.org/cgit/linux/kernel/git/pci/pci.git/commit/?id=bc0b828ef6e5 is queued on pci/for-linus for v6.15 and stable. ----- Forwarded message from bugzilla-daemon@kernel.org ----- Subject: [Bug 220010] New: Regression: 6.14.2 breaks PCI passthrough, qemu-system-x86_64: no available reset mechanism https://bugzilla.kernel.org/show_bug.cgi?id=220010 Created attachment 307958 --> https://bugzilla.kernel.org/attachment.cgi?id=307958&action=edit lspci Device: Asus Zephyrus GA402RJ dGPU: RX 6700S Kernel: 6.14.2 03:00.0: dGPU (IOMMU Group 16) 03:00.1: GPU Audio Controller (IOMMU Group 17) qemu-system-x86_64: vfio: Cannot reset device 0000:03:00.1, no available reset mechanism. qemu-system-x86_64: vfio: Cannot reset device 0000:03:00.0, no available reset mechanism. BISECTED: 792bd08a41bdc309e08ff4d429f670cbb30f2b63 03:00.0 does have `bus` in `03:00.0/reset_method`, and `03:00.1` does not have `03:00.1/reset` file. Removing `03:00.1` from PCI passthrough still shows error: qemu-system-x86_64: vfio: Cannot reset device 0000:03:00.0, no available reset mechanism. Attached lspci -vv output ----- End forwarded message -----