From nobody Mon Dec 1 21:30:45 2025 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 8E3193385A0 for ; Mon, 1 Dec 2025 17:30:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764610221; cv=none; b=J+GlVv4Ce/kaYpAtI2BejmAV1QwmwizxQKMUVhvKUmOqW8SIjRcf8FLIhwg4Mz5+u2gvByHNf9oZIdrDozr77KcMjJQy7X8W59Ey1ZaaiB4Sj4+gaHfuoSLKrS3IYyk8+HYSOYRd0NWba9s7C4kAWiQ/rpc9vOmPWl9+DZtYC6g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764610221; c=relaxed/simple; bh=FbNOAZU0TKAhX3Wq3/ciyXKedKyMzpckcHTC9mx8Wp4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=CoKU0PyA+tWTSl7Vpe+GlhVc6OiFDVAjIWBHB41g0auHfD+90Fn4bXPXr1QqktKV/ZkUQcV89J3QjHMQ+S6nC9xUqOwSbMd4mBeBJbZbXG6EFCEuM+Z+Hiux208OtE/YaJ8ElH9sOdbsHgj3DpMw9oaEj0paMqJ31jDMwqUKMCY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=l0Lls3Vo; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="l0Lls3Vo" Received: from DESKTOP-0403QTC.corp.microsoft.com (unknown [40.65.108.177]) by linux.microsoft.com (Postfix) with ESMTPSA id E468C2065978; Mon, 1 Dec 2025 09:30:18 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com E468C2065978 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1764610219; bh=dvomxELmbgUsVVEk5BX3KOjzWISlwhy4c5KxjdUoepY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=l0Lls3Vobt5W4SfRM6e8SjngoYYyvFQuVmVu4ogoL88V42/44vZXNPP/65MDRlgcI znWFTkAxZusrhnLmyAuky2fsdo8EBxRqr3n6Ze4EnPhEwl4PNxq7drsmiHXYi8uZPv DeAwqKbgngXEfj3p5sLds8JlssDXZ3ry1TSa7Yqo= From: Jacob Pan To: linux-kernel@vger.kernel.org, "iommu@lists.linux.dev" , Jason Gunthorpe , Alex Williamson , Joerg Roedel , Will Deacon , Robin Murphy , Nicolin Chen , "Tian, Kevin" , "Liu, Yi L" Cc: skhawaja@google.com, pasha.tatashin@soleen.com, Jacob Pan , Zhang Yu , Jean Philippe-Brucker , David Matlack Subject: [RFC 5/8] vfio: IOMMUFD relax requirement for noiommu mode Date: Mon, 1 Dec 2025 09:30:09 -0800 Message-Id: <20251201173012.18371-6-jacob.pan@linux.microsoft.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251201173012.18371-1-jacob.pan@linux.microsoft.com> References: <20251201173012.18371-1-jacob.pan@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" noiommu device only has auto domain, does not need to attach to other ioas. Signed-off-by: Jacob Pan --- drivers/vfio/vfio_main.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/vfio/vfio_main.c b/drivers/vfio/vfio_main.c index 38c8e9350a60..805d30b0b82f 100644 --- a/drivers/vfio/vfio_main.c +++ b/drivers/vfio/vfio_main.c @@ -317,9 +317,7 @@ static int __vfio_register_dev(struct vfio_device *devi= ce, =20 if (WARN_ON(IS_ENABLED(CONFIG_IOMMUFD) && (!device->ops->bind_iommufd || - !device->ops->unbind_iommufd || - !device->ops->attach_ioas || - !device->ops->detach_ioas))) + !device->ops->unbind_iommufd))) return -EINVAL; =20 /* --=20 2.34.1