From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) (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 5EBD92853EF; Mon, 8 Dec 2025 03:11:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.145.42 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765163506; cv=none; b=fcZB6/va6vPQ9H6L0r1kfRZEn3AW+fbXg5A2V3Eg/mg8Y+U1vwdtVwS2jyJInjzRCqIYVG9m0xm2jc6vCa+fD//9hqvnKzjoda430uOwmH/W75nVKfdzRDwQd2k/yQ/uGPWYPyM7KAzCzgnjr1hcgtHUwB/wuGORJc/7cHKd3FA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765163506; c=relaxed/simple; bh=PWVkiDEC87gkl3WeqYtJOi1H9NKFiIafL6d70O9h9dk=; h=Date:From:To:CC:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=NF7UFh4weqCkFZZK0ky6TqX8dxbJgSjX1SVEV/nsHl706ChVjhgPk+oMauqg66T9c1pAsDbnOx46Ae2MugAkVnm+BU8XLoQnesEULFiPVnCt6lxY10xrW79jBCwXoY0pWMel7lw8MLd3Oa9xCJ0NgplMJPx6yBrTMifObFntzw4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=fb.com; spf=pass smtp.mailfrom=meta.com; dkim=pass (2048-bit key) header.d=fb.com header.i=@fb.com header.b=hqaPaYjA; arc=none smtp.client-ip=67.231.145.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=fb.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=meta.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=fb.com header.i=@fb.com header.b="hqaPaYjA" Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 5B7NFkRA217946; Sun, 7 Dec 2025 19:11:33 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=cc :content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=s2048-2025-q2; bh=Vd6Iz1i7itJ92zcgMPFF 3i5AUH9Px70FcbBba7Gfk6M=; b=hqaPaYjAlt9ijhOTPQmQOTzQj2qeNXJost3q DWaewwUgsDwIXC70YkMc5vZywxyQN0xQD86SElBn4yASIJ8WF57OIOUvVH6QJ1x7 Vl/SDrGoD9IngZwCcS6Cxxp52ACtYW2WQHLtPAxnhgaw/m/kY2LlZc25fgks8YR3 gm/RDHmQ9Su5vI0mbZJ5ilGszdfwRPGbEjiCZDJaueckzMrSPUoh7902mxi6pj7o +MBNXQEodgp/gc9RrzVNUlj4+pbHwGAtx+FTgBk2jnvau3lpocBy5nOEL981sz+g JJI3ORqZpPjkk0q04u0KWOfhzWkMdvj+vFAJ52/rP5VMe5aiFA== Received: from maileast.thefacebook.com ([163.114.135.16]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 4avhd5784v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Sun, 07 Dec 2025 19:11:32 -0800 (PST) Received: from devgpu015.cco6.facebook.com (2620:10d:c0a8:1b::30) by mail.thefacebook.com (2620:10d:c0a9:6f::237c) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.29; Mon, 8 Dec 2025 03:11:30 +0000 Date: Sun, 7 Dec 2025 19:11:25 -0800 From: Alex Mastro To: Peter Xu CC: , , , Jason Gunthorpe , Nico Pache , Zi Yan , David Hildenbrand , Alex Williamson , Zhi Wang , David Laight , Yi Liu , Ankit Agrawal , Kevin Tian , Andrew Morton Subject: Re: [PATCH v2 4/4] vfio-pci: Best-effort huge pfnmaps with !MAP_FIXED mappings Message-ID: References: <20251204151003.171039-1-peterx@redhat.com> <20251204151003.171039-5-peterx@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20251204151003.171039-5-peterx@redhat.com> X-Authority-Analysis: v=2.4 cv=ZIPaWH7b c=1 sm=1 tr=0 ts=693641e4 cx=c_pps a=MfjaFnPeirRr97d5FC5oHw==:117 a=MfjaFnPeirRr97d5FC5oHw==:17 a=kj9zAlcOel0A:10 a=wP3pNCr1ah4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=cCa_CVtDXYSc011Sr6sA:9 a=CjuIK1q_8ugA:10 X-Proofpoint-GUID: i1OkR2zPIMdJjvRRdpVqF_xjZi1juKv5 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjA4MDAyNSBTYWx0ZWRfX5nK+Tc/ZJJsi QhadGeGPvSVp4T22yoZpnRWgwVPvXIObvTMLv/q5HpmzEZ9aAbwzhIqHBWCp/QIGaBmDfuJref1 M6e9US7i0Zap/5ba16bT8drdORPBRsp/ijkfkWcc5kVe+sQuSyp7A2LKKuSfwpcSCuVawQq5MCa cwnUKALCjyJ+dSlOXUDnI0/jANwfFjarErArnOQO+TLf/kOmDc7ARoHladPfiZz9rdvpcCR0lGM lvnPrmVJVz7jIL8OOrcfy903DNdunbEWn4fshx8Rmr/ZQElJ2wr4+QiixNQwJlbQizQVabQdg64 giEypRJBLACssjRlqeyqwLJxcAO8c5eg5pui/UiNtIPW1Cq0pRmmM5URPCRLBA+7C8j680Pqthb GPfaVMG4dr5wOYy0nxktuOJmRrneUQ== X-Proofpoint-ORIG-GUID: i1OkR2zPIMdJjvRRdpVqF_xjZi1juKv5 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-06_02,2025-12-04_04,2025-10-01_01 On Thu, Dec 04, 2025 at 10:10:03AM -0500, Peter Xu wrote: > To achieve that, a custom vfio_device's get_mapping_hint() for vfio-pci > devices is needed. nit get_mapping_order()