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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C6400D1CDC6 for ; Tue, 9 Dec 2025 08:19:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Message-ID:Date:References:In-Reply-To:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=aL/hwR8PIWPLlV6uFQBsf2fAQbPmjSBfIHKkmx7HAzw=; b=cU+LZJ/B4u48EFAD8PYjtem/Oe RVhHYwWMMVRO+VXcg3DMR1GLCnYKWyTshHYmrYhLSxAFj5I0j8PAwgrOOsmJOXIV3vD65YoVBMzUN JdibM79Mhw4a3cKu1WvNfTNaykVr5nT3ZstBDCvOzqlYRyCW5u/Ryn3whIszbyBDC6cg/GOFuO01R SxN3W3PY1lXnkJGpqwwDDQl4MUIIj7DhWAUvWYgouuQNxwHpUZqey0laj5bo3Cur/xjXouEQHP08i pauMmGv+QvrS/AZE3jSqAp/G9hN8GgjsyQxXnpDSGMf+Uuzl2f/UFO0+R353dtlVQf7e+L0BRKnCj V+8PlYbQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vSsw1-0000000DzEN-1MXm; Tue, 09 Dec 2025 08:19:01 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vSsvw-0000000DzDt-42wz for kexec@lists.infradead.org; Tue, 09 Dec 2025 08:18:58 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 414CB40408; Tue, 9 Dec 2025 08:18:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 66519C4CEF5; Tue, 9 Dec 2025 08:18:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1765268335; bh=aL/hwR8PIWPLlV6uFQBsf2fAQbPmjSBfIHKkmx7HAzw=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=J+aaFS9DJjhtBzUXMwjiV1dTctAzbSTgd+qhpLMl5+L/KZvE8jsx3AyT07Pl72FmX DBXpTNDIbkr0ESOZCipm+oEipaq4Us8aDhRUR89KNBqA+0HaL+Rx/ENO3lxV6x8fuW zptCYOGL5rXnmjGw26F1L16Wwp931gY+IQ6hg2bslYXpzSAJ9LgoTsnFgsw9jq78ry 1BCC+EnCrO8RFAZGdvmCba4sJVIpSvxSVnHIHT/MVh7fJqJYfQHh7ASXPxCpKc5FTR 5B5vOjVS8NOEHgGq2/S31MnHy6yDdyNJoBZTN7PXj7Rf8Rl7DtrXCXmUHKkDB38QiT z81VvUd0S+h+A== From: Pratyush Yadav To: Zhu Yanjun Cc: Pratyush Yadav , Pasha Tatashin , Mike Rapoport , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Jonathan Corbet , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Muchun Song , Oscar Salvador , Alexander Graf , David Matlack , David Rientjes , Jason Gunthorpe , Samiullah Khawaja , Vipin Sharma , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-doc@vger.kernel.org, kexec@lists.infradead.org Subject: Re: [RFC PATCH 00/10] liveupdate: hugetlb support In-Reply-To: <48d0b46e-2b82-44b6-a717-94bc258a508d@linux.dev> (Zhu Yanjun's message of "Mon, 8 Dec 2025 20:43:22 -0800") References: <20251206230222.853493-1-pratyush@kernel.org> <48d0b46e-2b82-44b6-a717-94bc258a508d@linux.dev> Date: Tue, 09 Dec 2025 09:18:45 +0100 Message-ID: <86h5u0ax0a.fsf@kernel.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251209_001857_085346_62FB423B X-CRM114-Status: GOOD ( 14.50 ) X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org Hi, On Mon, Dec 08 2025, Zhu Yanjun wrote: > =E5=9C=A8 2025/12/6 15:02, Pratyush Yadav =E5=86=99=E9=81=93: >> This series adds support for live updating hugetlb-backed memfd, >> including support for 1G huge pages. This allows live updating VMs which >> use hugepages to back VM memory. >> >> Please take a look at this patch series [0] to know more about the Live >> Update Orchestrator (LUO). It also includes patches for live updating a >> shmem-backed memfd. This series is a follow up to that, adding huge page >> support as well. >> >> You can also read this LWN article [1] to learn more about KHO and Live >> Update Orchestrator, though do note that this article is a bit >> out-of-date. LUO has since evolved. For example, subsystems have been >> replaced with FLB, and the state machine has been simplified. >> >> This series is based on top of mm-non-unstable, which includes the LUO >> FLB patches [2]. >> >> This series uses LUO FLB to track how many pages are preserved for each >> hstate, to ensure the live updated kernel does not over-allocate >> hugepages. > > > Is this patch serise based on the patches in the link > https://lkml.org/lkml/2025/11/26/1665? No. That is an independent series. This series is based on mm-nonmm-unstable, which has the base LUO patches and the LUO FLB patches, but not the VFIO or IOMMU patches. [...] --=20 Regards, Pratyush Yadav