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 CF6CA221FB1 for ; Fri, 14 Nov 2025 16:17:35 +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=1763137055; cv=none; b=F2KfMA04hK56Dtwii7p7py/9j/JP10LVvA0P6V3UOlyo8b/WdtpdwXeH25PxWWkNbW3cCcYdQplyG+v1Ey2iTCxUMBB1ccI9TVxXAd74DqYnfS8yeoOteDx3l+L87J1qmzluZPoQV6oBHYZrIhF3V0JMF2DyPmsyad3Gj42u318= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763137055; c=relaxed/simple; bh=1TP2PBihBm/xACDWaGTPWhNWAdDdBhE5Owp0RpW0KBw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=M8dxI0z5wwQs9OXDotrqJnVaHES66VT4Gf+tA/d0VgVhjwYVUS6bAbOfPU3+5WvCFo9pONtmRxgOMnSB3JVyZVs74bDk99IikBTw9mqWnE+Veihl5+VeVnNt3KGpURu2zJfWzwoRHbxwxUs7U0o7I5OV1ghFq995GX7wCC31PAw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bwrPhz/H; 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="bwrPhz/H" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1FFD7C4CEF5; Fri, 14 Nov 2025 16:17:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763137055; bh=1TP2PBihBm/xACDWaGTPWhNWAdDdBhE5Owp0RpW0KBw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bwrPhz/H4pWI6GRx+uoYSdBmXA78z+aVv88xUzOIT17tPfm2Ur79PxBbmFmETirvN 6/z2xXhyZKz1WEYyTa9ySylU39jBcxrcd/LaesSsiSgm4WZeP5HMBWX76VJ2mMVnlV 3HVMlBc9re1Z4MtzUQv3z5aLXfQ6beeJ7DdK6fPjtwRoTDJaSFg4Tv1P0K365g6Xnz lL5wkoVXSMH235A+WDbEaMuUz7+vSIAbl8IqCGrTyxL+ATr3C2IxBwOLW2pnNP+C31 TyvqXGWFVQiKzXHNB8RLx5qPpjPiSbEfZvQ7k5koLM845Ed7SdKJFdjXQ9df1LX8I1 j0YEIpr35ql2w== Date: Fri, 14 Nov 2025 18:17:27 +0200 From: Mike Rapoport To: Pasha Tatashin Cc: akpm@linux-foundation.org, bhe@redhat.com, jasonmiu@google.com, arnd@arndb.de, coxu@redhat.com, dave@vasilevsky.ca, ebiggers@google.com, graf@amazon.com, kees@kernel.org, linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-mm@kvack.org Subject: Re: [PATCH v1 00/13] kho: simplify state machine and enable dynamic updates Message-ID: References: <20251114155358.2884014-1-pasha.tatashin@soleen.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: <20251114155358.2884014-1-pasha.tatashin@soleen.com> On Fri, Nov 14, 2025 at 10:53:45AM -0500, Pasha Tatashin wrote: > > This patch series refactors the Kexec Handover subsystem to transition > from a rigid, state-locked model to a dynamic, re-entrant architecture. > It also introduces usability improvements. > > Pasha Tatashin (13): > kho: Fix misleading log message in kho_populate() > kho: Convert __kho_abort() to return void > kho: Preserve FDT folio only once during initialization > kho: Verify deserialization status and fix FDT alignment access > kho: Always expose output FDT in debugfs > kho: Simplify serialization and remove __kho_abort > kho: Remove global preserved_mem_map and store state in FDT > kho: Remove abort functionality and support state refresh > kho: Update FDT dynamically for subtree addition/removal > kho: Allow kexec load before KHO finalization > kho: Allow memory preservation state updates after finalization > kho: Add Kconfig option to enable KHO by default > kho: Introduce high-level memory allocation API For the series: Reviewed-by: Mike Rapoport (Microsoft) with small nits in patches 9 and 13 in replies to them. > > include/linux/kexec_handover.h | 22 +- > kernel/liveupdate/Kconfig | 14 + > kernel/liveupdate/kexec_handover.c | 338 ++++++++++++-------- > kernel/liveupdate/kexec_handover_debugfs.c | 2 +- > kernel/liveupdate/kexec_handover_internal.h | 1 - > 5 files changed, 232 insertions(+), 145 deletions(-) > > -- > 2.52.0.rc1.455.g30608eb744-goog > -- Sincerely yours, Mike.