From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sipsolutions.net (s3.sipsolutions.net [168.119.38.16]) (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 65BED2C2347 for ; Fri, 19 Sep 2025 09:38:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=168.119.38.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758274726; cv=none; b=K8167NsQAK4VpFPuw/3WuCT5p4guIAUCFZG5ZsX/B168f8LTfguYly0B8e+6ycLyPDsN7mTrzITj5mKVMAhx4NYGFV42L+f0GTH6innKQpS4bYe4liYB8fmZD1RLWro0fidOh/gEWWcmP6MHlA8vTSez5qWkekOGMM+t6MYQjM8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758274726; c=relaxed/simple; bh=PoICDzH2/VRmvGDHWLmPf6AlqNG0CMWG+Nk9x/31v0A=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=FWt9sgj6nIBbazIV7V/Bp+8uxel8LOHRbh6LEqq8XBcoPwk1EkDyxpFe1+0dceYLOgCy9UrsQYyapwHkBvepuejH0+QYNqSLC/u6zWbbWdOJq+Io5vOiTsM1sR7QU1GZ0XfXW7Lj+PUYiOyY25MkgGN0VbdiYSAS2h7TAJrQ72w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sipsolutions.net; spf=pass smtp.mailfrom=sipsolutions.net; dkim=pass (2048-bit key) header.d=sipsolutions.net header.i=@sipsolutions.net header.b=gYQq2/Jo; arc=none smtp.client-ip=168.119.38.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sipsolutions.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sipsolutions.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sipsolutions.net header.i=@sipsolutions.net header.b="gYQq2/Jo" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sipsolutions.net; s=mail; h=MIME-Version:Content-Transfer-Encoding: Content-Type:References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-To: Resent-Cc:Resent-Message-ID; bh=PoICDzH2/VRmvGDHWLmPf6AlqNG0CMWG+Nk9x/31v0A=; t=1758274725; x=1759484325; b=gYQq2/JoFO8qZoZ04Maz2mw7KKkX5FVsyAGqbtYjinx/kEa 1gufc4C/o0Say55HMNChUIFloSQIiy+gzthvINqbpd2TOFDVfAvCNG2/IMUHaE73N/4l6VOp07Lmt ALJviub+4Ap2uNEoy0eGop0cYdX49Et6VZ/szCKG/cHRh0OxeG0tQ2he7+GqNx2r4tBbn/D5QEf4j OskjKiOm50Wo9ImvyPnY1/k40U/SqUt2th6h6vEAOsUdtRUp47wB3pS9RO+F0EJ33JJUqyGH0vOl0 Js1MVWSmy/iLd/E37nIOUjDAGu8wH/zzqDrGa+zQzMl0dKjdtyE4n3zxfinwcsMQ==; Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.98.2) (envelope-from ) id 1uzXZh-0000000FdhH-3S1z; Fri, 19 Sep 2025 11:38:42 +0200 Message-ID: <78c173c1f5f61430ef33e22559e3d1539db36395.camel@sipsolutions.net> Subject: Re: [PATCH RESEND v11 10/13] um: nommu: a work around for MMU dependency to PCI driver From: Johannes Berg To: Hajime Tazaki Cc: linux-um@lists.infradead.org, ricarkol@google.com, Liam.Howlett@oracle.com, linux-kernel@vger.kernel.org Date: Fri, 19 Sep 2025 11:38:40 +0200 In-Reply-To: References: <4a9dde10c586883d20a8201ca7d76e6d7d52eaf4.1758181109.git.thehajime@gmail.com> <6b1abe384237c8129e8043ecdfdad77758d2fd2f.camel@sipsolutions.net> (sfid-20250919_113237_926194_6AC3D71B) Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 (3.56.2-2.fc42) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-malware-bazaar: not-scanned On Fri, 2025-09-19 at 11:38 +0200, Johannes Berg wrote: > My gut feeling is that UML_PCI_OVER_VIRTIO should depend on PCI but I > don't know if that then doesn't end up in some kind of circular > dependency. And all the discussion is also true for UML_PCI_OVER_VFIO which also selects UML_PCI. johannes