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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB1D5EB64DD for ; Wed, 12 Jul 2023 19:16:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231913AbjGLTQL (ORCPT ); Wed, 12 Jul 2023 15:16:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232332AbjGLTQC (ORCPT ); Wed, 12 Jul 2023 15:16:02 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 84EEC1FC3 for ; Wed, 12 Jul 2023 12:16:01 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 23DB4618E3 for ; Wed, 12 Jul 2023 19:16:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7E49DC433CB; Wed, 12 Jul 2023 19:16:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1689189360; bh=5+l8kj4iaVw7yzbuKmeGjUJ6AoDLdNJRh6PKP0ZGvaU=; h=Date:To:From:Subject:From; b=xmjxw2lohc/mEdxEhxVzIzcUkDx3oJrIKmuM/Wg5l3DGA5gljtq/n+kS8Xm2PZW0W GXKAPBuWxhMZRhVDWtzAZhNTm1wuhHnX0yxICPVzFOeB05rCrrhWQSvpWYzqeRchXL DIavZvMeNpMfF9akB2UvmE3M6l9YQODxUnGrBj2Y= Date: Wed, 12 Jul 2023 12:15:59 -0700 To: mm-commits@vger.kernel.org, glaubitz@physik.fu-berlin.de, eric.devolder@oracle.com, akpm@linux-foundation.org From: Andrew Morton Subject: + sh-kexec-refactor-for-kernel-kconfigkexec.patch added to mm-nonmm-unstable branch Message-Id: <20230712191600.7E49DC433CB@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: sh/kexec: refactor for kernel/Kconfig.kexec has been added to the -mm mm-nonmm-unstable branch. Its filename is sh-kexec-refactor-for-kernel-kconfigkexec.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/sh-kexec-refactor-for-kernel-kconfigkexec.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Eric DeVolder Subject: sh/kexec: refactor for kernel/Kconfig.kexec Date: Wed, 12 Jul 2023 12:15:44 -0400 The kexec and crash kernel options are provided in the common kernel/Kconfig.kexec. Utilize the common options and provide the ARCH_SUPPORTS_ and ARCH_SELECTS_ entries to recreate the equivalent set of KEXEC and CRASH options. Link: https://lkml.kernel.org/r/20230712161545.87870-14-eric.devolder@oracle.com Signed-off-by: Eric DeVolder Acked-by: John Paul Adrian Glaubitz Signed-off-by: Andrew Morton --- arch/sh/Kconfig | 42 ++++++------------------------------------ 1 file changed, 6 insertions(+), 36 deletions(-) --- a/arch/sh/Kconfig~sh-kexec-refactor-for-kernel-kconfigkexec +++ a/arch/sh/Kconfig @@ -549,44 +549,14 @@ menu "Kernel features" source "kernel/Kconfig.hz" -config KEXEC - bool "kexec system call (EXPERIMENTAL)" - depends on MMU - select KEXEC_CORE - help - kexec is a system call that implements the ability to shutdown your - current kernel, and to start another kernel. It is like a reboot - but it is independent of the system firmware. And like a reboot - you can start any kernel with it, not just Linux. +config ARCH_SUPPORTS_KEXEC + def_bool MMU - The name comes from the similarity to the exec system call. +config ARCH_SUPPORTS_CRASH_DUMP + def_bool BROKEN_ON_SMP - It is an ongoing process to be certain the hardware in a machine - is properly shutdown, so do not be surprised if this code does not - initially work for you. As of this writing the exact hardware - interface is strongly in flux, so no good recommendation can be - made. - -config CRASH_DUMP - bool "kernel crash dumps (EXPERIMENTAL)" - depends on BROKEN_ON_SMP - help - Generate crash dump after being started by kexec. - This should be normally only set in special crash dump kernels - which are loaded in the main kernel with kexec-tools into - a specially reserved region and then later executed after - a crash by kdump/kexec. The crash dump kernel must be compiled - to a memory address not used by the main kernel using - PHYSICAL_START. - - For more details see Documentation/admin-guide/kdump/kdump.rst - -config KEXEC_JUMP - bool "kexec jump (EXPERIMENTAL)" - depends on KEXEC && HIBERNATION - help - Jump between original kernel and kexeced kernel and invoke - code via KEXEC +config ARCH_SUPPORTS_KEXEC_JUMP + def_bool y config PHYSICAL_START hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) _ Patches currently in -mm which might be from eric.devolder@oracle.com are kexec-consolidate-kexec-and-crash-options-into-kernel-kconfigkexec.patch x86-kexec-refactor-for-kernel-kconfigkexec.patch arm-kexec-refactor-for-kernel-kconfigkexec.patch ia64-kexec-refactor-for-kernel-kconfigkexec.patch arm64-kexec-refactor-for-kernel-kconfigkexec.patch loongarch-kexec-refactor-for-kernel-kconfigkexec.patch m68k-kexec-refactor-for-kernel-kconfigkexec.patch mips-kexec-refactor-for-kernel-kconfigkexec.patch parisc-kexec-refactor-for-kernel-kconfigkexec.patch powerpc-kexec-refactor-for-kernel-kconfigkexec.patch riscv-kexec-refactor-for-kernel-kconfigkexec.patch s390-kexec-refactor-for-kernel-kconfigkexec.patch sh-kexec-refactor-for-kernel-kconfigkexec.patch kexec-rename-arch_has_kexec_purgatory.patch