From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 7C65219006B; Tue, 9 Dec 2025 08:18:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765268335; cv=none; b=Jib6McjntIqnceW1Zs66Cyl3NKqtajqbehB9DiRKzj+2MIU5eOL7k9/p1LWGZA60G5AG4vAGME7fIhHAbBVYWBrX09VpIlsd3QW1scjyhobj+DXdMpAx9/7TzoW3996LMpPcj6rrMDl1ZJqm5DXLApc4JrnAtjYciooOthT1n5s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765268335; c=relaxed/simple; bh=aL/hwR8PIWPLlV6uFQBsf2fAQbPmjSBfIHKkmx7HAzw=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=WwLPLVmge6BDWMK9gW2x2AUaHdFocNvlN1YFwgZIUKSny5LkHVLBVWzFh/9u88vu2saQds7IOL2Em0XvZLZGEAk5Mnrdwnd6p1mx7dku4RPDX5tVh2KNgyu3erO6OjUV7s5iNWhURrTY5Ypb3Q0fkt/l+HmsXK2nxFP8Vp3vm9U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=J+aaFS9D; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="J+aaFS9D" 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) Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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