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 791EAC001DC for ; Fri, 7 Jul 2023 20:12:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232680AbjGGUMO (ORCPT ); Fri, 7 Jul 2023 16:12:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232602AbjGGUMG (ORCPT ); Fri, 7 Jul 2023 16:12:06 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC9EF1FE7 for ; Fri, 7 Jul 2023 13:12:04 -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 413EF61A7B for ; Fri, 7 Jul 2023 20:12:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94F51C433C8; Fri, 7 Jul 2023 20:12:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1688760723; bh=SbbUyvOgGBdPIp92XlenwMogM+wSeDT0qJn18yg3Tn8=; h=Date:To:From:Subject:From; b=oKHOkf6zL7zlBNLW9cjuYXyNoHked+SudZoQFWEv5SG7JI3JdVONhwTeI6lmahlwn G51/WVb/F6bMH9s2zJe5bIVtjK4/k/5E0CSGrq8XwLsFAYA9VgeomPmbBfh99KptiL K4I79l3oSinolcZ4YfcVoPTfuyVQd5hVMsmgO/7s= Date: Fri, 07 Jul 2023 13:12:03 -0700 To: mm-commits@vger.kernel.org, tsbogend@alpha.franken.de, sourabhjain@linux.ibm.com, glaubitz@physik.fu-berlin.de, geert@linux-m68k.org, agordeev@linux.ibm.com, eric.devolder@oracle.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mips-kexec-refactor-for-kernel-kconfigkexec.patch added to mm-nonmm-unstable branch Message-Id: <20230707201203.94F51C433C8@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: mips/kexec: refactor for kernel/Kconfig.kexec has been added to the -mm mm-nonmm-unstable branch. Its filename is mips-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/mips-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: mips/kexec: refactor for kernel/Kconfig.kexec Date: Thu, 6 Jul 2023 18:20:22 -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/20230706222027.189117-9-eric.devolder@oracle.com Signed-off-by: Eric DeVolder Acked-by: Thomas Bogendoerfer Cc: Alexander Gordeev Cc: Geert Uytterhoeven Cc: John Paul Adrian Glaubitz Cc: Sourabh Jain Signed-off-by: Andrew Morton --- arch/mips/Kconfig | 30 ++++-------------------------- 1 file changed, 4 insertions(+), 26 deletions(-) --- a/arch/mips/Kconfig~mips-kexec-refactor-for-kernel-kconfigkexec +++ a/arch/mips/Kconfig @@ -2878,33 +2878,11 @@ config HZ config SCHED_HRTICK def_bool HIGH_RES_TIMERS -config KEXEC - bool "Kexec system call" - 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 y - The name comes from the similarity to the exec system call. - - 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" - 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 or firmware using - PHYSICAL_START. +config ARCH_SUPPORTS_CRASH_DUMP + def_bool y config PHYSICAL_START hex "Physical address where the kernel is loaded" _ 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