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 2F24B3234 for ; Fri, 2 May 2025 00:43:52 +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=1746146632; cv=none; b=ERAijSVtfGauQ+WlPLvS2tXm9wMghPuMVUhUnaQmvi/9HwPbcvKV8whf7KNwVQS8kbGHol9pnhdRaUhY6xP7iu5USzf+leUFfGRFjMmY+DBP/FanLSIvzFShXz4RIr/9HP5+CDEl0QbF6ydB4Cds+kQ02vKq+wncf3PEd27fuic= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746146632; c=relaxed/simple; bh=XsKvVhacMxahlgRTsvODfKVR7tDFOfT25kR1WZIaE/w=; h=Date:To:From:Subject:Message-Id; b=OUX6K4rreCGppp9RlYz3OG+5dI16v+CFe5z/ADuw1jcOAoLk/xiCgWhV4ZUbMuLd5nHk5cPx4z1HVXhU96nN2+LZeGpYec40WU3X6jeFsgdUId4HINVGGskqpBCqMAWdthO/rQDwQ1kWsSr6LS3qiLgTA33q1lsZUFxKwBL6h4I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=Xo7A3SP+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="Xo7A3SP+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 02F20C4CEE3; Fri, 2 May 2025 00:43:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1746146632; bh=XsKvVhacMxahlgRTsvODfKVR7tDFOfT25kR1WZIaE/w=; h=Date:To:From:Subject:From; b=Xo7A3SP+4XeZ8dKrs57gKpF+gppjOKyccLuxf8nGmugEP/bmvzZg+joSCLixEmhXx k0nZjkgm1udMr3e4pdgSfvqAruRAfQSbG5UxIZtk9eLk9MZBpdwNL3+IHCuFd03q/v GkpzBgvL/SCVUlquHIeLtCWxNEkj4on5BedPW3gY= Date: Thu, 01 May 2025 17:43:51 -0700 To: mm-commits@vger.kernel.org,rppt@kernel.org,changyuanl@google.com,graf@amazon.com,akpm@linux-foundation.org From: Andrew Morton Subject: + x86-kconfig-enable-kexec-handover-for-64-bits.patch added to mm-unstable branch Message-Id: <20250502004352.02F20C4CEE3@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: x86/Kconfig: enable kexec handover for 64 bits has been added to the -mm mm-unstable branch. Its filename is x86-kconfig-enable-kexec-handover-for-64-bits.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/x86-kconfig-enable-kexec-handover-for-64-bits.patch This patch will later appear in the mm-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: Alexander Graf Subject: x86/Kconfig: enable kexec handover for 64 bits Date: Thu, 1 May 2025 15:54:22 -0700 Add ARCH_SUPPORTS_KEXEC_HANDOVER for 64 bits to allow enabling of KEXEC_HANDOVER configuration option. Link: https://lkml.kernel.org/r/20250501225425.635167-16-changyuanl@google.com Signed-off-by: Alexander Graf Co-developed-by: Mike Rapoport (Microsoft) Signed-off-by: Mike Rapoport (Microsoft) Co-developed-by: Changyuan Lyu Signed-off-by: Changyuan Lyu Signed-off-by: Andrew Morton --- arch/x86/Kconfig | 3 +++ 1 file changed, 3 insertions(+) --- a/arch/x86/Kconfig~x86-kconfig-enable-kexec-handover-for-64-bits +++ a/arch/x86/Kconfig @@ -2029,6 +2029,9 @@ config ARCH_SUPPORTS_KEXEC_BZIMAGE_VERIF config ARCH_SUPPORTS_KEXEC_JUMP def_bool y +config ARCH_SUPPORTS_KEXEC_HANDOVER + def_bool X86_64 + config ARCH_SUPPORTS_CRASH_DUMP def_bool X86_64 || (X86_32 && HIGHMEM) _ Patches currently in -mm which might be from graf@amazon.com are memblock-add-support-for-scratch-memory.patch kexec-add-kexec-handover-kho-generation-helpers.patch kexec-add-kho-parsing-support.patch kexec-add-kho-support-to-kexec-file-loads.patch kexec-add-config-option-for-kho.patch arm64-add-kho-support.patch x86-kexec-add-support-for-passing-kexec-handover-kho-data.patch x86-e820-temporarily-enable-kho-scratch-for-memory-below-1m.patch x86-boot-make-sure-kaslr-does-not-step-over-kho-preserved-memory.patch x86-kconfig-enable-kexec-handover-for-64-bits.patch memblock-add-kho-support-for-reserve_mem.patch documentation-add-documentation-for-kho.patch