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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4CA9CC79FB7 for ; Wed, 9 Sep 2026 15:35:37 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 241E26B0098; Wed, 9 Sep 2026 11:35:36 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 219256B0099; Wed, 9 Sep 2026 11:35:36 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1084F6B009B; Wed, 9 Sep 2026 11:35:36 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id DCF726B0098 for ; Wed, 9 Sep 2026 11:35:35 -0400 (EDT) Received: from smtpin17.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay01.hostedemail.com (Postfix) with ESMTP id F0B291C1B3E for ; Wed, 9 Sep 2026 15:35:34 +0000 (UTC) X-FDA: 85194623388.17.A7249D2 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf14.hostedemail.com (Postfix) with ESMTP id 4600E100004 for ; Wed, 9 Sep 2026 15:35:33 +0000 (UTC) Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=B8tXXPP0; spf=pass (imf14.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1788968133; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=uh93x1YF/dEaPyXWzFbI73dZS8rpJkADyL58fkB1FYU=; b=IAxrHdJp/hPuxU7LxtYUWJf/UICqDONFzRFNddwPjoyM7f+4g1+f8IQHXKNQ2EWeZlqJh8 Ze/cmDTMoHKxQUYQyop1Up6GQjIf9rI+ceO6fbNGSmraii/u6M8BhmkuZQnJNeSO+4gBH/ jkOYHcOAwGC1eCj3VMtOdfkEQmj0pdQ= ARC-Authentication-Results: i=1; imf14.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20260515 header.b=B8tXXPP0; spf=pass (imf14.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1788968133; b=0eez6dUeKgfup9Cu+e6hNmuwYc+ZV0fYheRYj5DFnVWv1e05lyjkRye16oCsF4gUSpgCnt WdBftSTmPR9nPDN5ydnhgL/wClgdsm8X9rs7LwQsf1A6gfdxIrmuNXL53HvuOXlSJqT1XZ kS/Q12iO+H8+CekVO+5Ul+akIgd2U28= Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id 9273E60202; Wed, 9 Sep 2026 15:35:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 870621F00A3A; Wed, 9 Sep 2026 15:35:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788968132; bh=uh93x1YF/dEaPyXWzFbI73dZS8rpJkADyL58fkB1FYU=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=B8tXXPP0BpNZCnZ6D6dQeWWfG9eCaCcLp1iGPfB7DFfT+ATRDi8hxrzJjm0UIJWID 6OOcroK7SZ5KAWqwBjOU7ychXay7xhZCjUJWqnvA2HLCB8qdRLU7SoQ8IEIgTwWed7 Bw2SKj1yugxKiwOlo5T55L2Us/XLRZNiRFUpRp/tDkHI+7loZUpfPCuiuV1P40bYzX gemsILP/z4wH2hbB+0Cs/bsJMiEIehCS2IE9dZ/8+RenT1ybJ+fSgCgkaTjGsCyUBz xj3gs4FgpTBFUEnQQGFnaF3zZyLCInbnln1VTOdXEaGH1E5lrK00ebKwI28JeiJ9bP XyQzu4+v48ZJQ== Message-ID: <10b49972-dab0-4563-a3a4-c3549d9f553d@kernel.org> Date: Wed, 9 Sep 2026 17:35:13 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v12 02/45] KVM: guest_memfd: Use kvm_mem_is_private() when populating guest_memfd memory To: ackerleytng@google.com, aik@amd.com, andrew.jones@linux.dev, binbin.wu@linux.intel.com, brauner@kernel.org, chao.p.peng@linux.intel.com, jmattson@google.com, jthoughton@google.com, michael.roth@amd.com, oupton@kernel.org, pankaj.gupta@amd.com, qperret@google.com, rick.p.edgecombe@intel.com, rientjes@google.com, shivankg@amd.com, steven.price@arm.com, willy@infradead.org, wyihan@google.com, yan.y.zhao@intel.com, forkloop@google.com, pratyush@kernel.org, suzuki.poulose@arm.com, aneesh.kumar@kernel.org, liam@infradead.org, Paolo Bonzini , Sean Christopherson , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Jonathan Corbet , Shuah Khan , Shuah Khan , Vishal Annapurve , Andrew Morton , Chris Li , Kairui Song , Kemeng Shi , Nhat Pham , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Youngjun Park , Qi Zheng , Shakeel Butt , Kiryl Shutsemau , Baoquan He , Jason Gunthorpe , John Hubbard , Peter Xu , tarunsahu@google.com, Randy Dunlap , Lorenzo Stoakes , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Fuad Tabba Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, linux-coco@lists.linux.dev, Xiaoyao Li References: <20260830-gmem-inplace-conversion-v12-0-85e5fd25252a@google.com> <20260830-gmem-inplace-conversion-v12-2-85e5fd25252a@google.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzS5EYXZpZCBIaWxk ZW5icmFuZCAoQ3VycmVudCkgPGRhdmlkQGtlcm5lbC5vcmc+wsGQBBMBCAA6AhsDBQkmWAik AgsJBBUKCQgCFgICHgUCF4AWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaYJt/AIZAQAKCRBN 3hD3AP+DWriiD/9BLGEKG+N8L2AXhikJg6YmXom9ytRwPqDgpHpVg2xdhopoWdMRXjzOrIKD g4LSnFaKneQD0hZhoArEeamG5tyo32xoRsPwkbpIzL0OKSZ8G6mVbFGpjmyDLQCAxteXCLXz ZI0VbsuJKelYnKcXWOIndOrNRvE5eoOfTt2XfBnAapxMYY2IsV+qaUXlO63GgfIOg8RBaj7x 3NxkI3rV0SHhI4GU9K6jCvGghxeS1QX6L/XI9mfAYaIwGy5B68kF26piAVYv/QZDEVIpo3t7 /fjSpxKT8plJH6rhhR0epy8dWRHk3qT5tk2P85twasdloWtkMZ7FsCJRKWscm1BLpsDn6EQ4 jeMHECiY9kGKKi8dQpv3FRyo2QApZ49NNDbwcR0ZndK0XFo15iH708H5Qja/8TuXCwnPWAcJ DQoNIDFyaxe26Rx3ZwUkRALa3iPcVjE0//TrQ4KnFf+lMBSrS33xDDBfevW9+Dk6IISmDH1R HFq2jpkN+FX/PE8eVhV68B2DsAPZ5rUwyCKUXPTJ/irrCCmAAb5Jpv11S7hUSpqtM/6oVESC 3z/7CzrVtRODzLtNgV4r5EI+wAv/3PgJLlMwgJM90Fb3CB2IgbxhjvmB1WNdvXACVydx55V7 LPPKodSTF29rlnQAf9HLgCphuuSrrPn5VQDaYZl4N/7zc2wcWM7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t In-Reply-To: <20260830-gmem-inplace-conversion-v12-2-85e5fd25252a@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Stat-Signature: ds56uzqd6rc893eo7gf89c11sdh7b1b6 X-Rspamd-Queue-Id: 4600E100004 X-Rspamd-Server: rspam07 X-HE-Tag: 1788968133-449360 X-HE-Meta: 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 lJxqNNXz Wnykp9Sgf4NWcmd2DNLhSGhc/dhYdFJQQujvnyWbwlN8OSJS7of64D3QavKNIMvBYitwxpTFtb+ON3VO4VKHrlYH1ThFCZ/TSN8ECTP+Vtihxz12lwhPcYS4wT2s2fEdmPdprU8OlNwy5HdsIC/YESXCq1JSY/qMwHY1l+psq1ZR1797xW7SDqH9aAwCvjdED1P23LSXne7z438IfD80O+lmmmZnt1f0pR8YWOesiS5RMS+Tau1QIwCDLj821L20qok33ZoYutBLU8xjjOXkbK00GUITZHGZNV7wbCWLfPx/JG8bKNKuatYxG8fKVrBEbpScYccCh7lc8O8rqRuZN2PcF8hpIdnqbzjEyt7ch/prtQMtRSCE0Jt2GQw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 8/31/26 02:25, Ackerley Tng via B4 Relay wrote: > From: Sean Christopherson > > Use kvm_mem_is_private() when populating guest_memfd instead of using an > open coded equivalent. In addition to simplifying the populate code *now*, > this avoids the need to provide a range-based gmem lookup API in the future > as well. > > No functional change intended. > > Signed-off-by: Sean Christopherson > Suggested-by: Xiaoyao Li > Reviewed-by: Xiaoyao Li > Reviewed-by: Binbin Wu > Reviewed-by: Fuad Tabba > Signed-off-by: Ackerley Tng > --- Reviewed-by: David Hildenbrand (Arm) -- Cheers, David