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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69F02C4360F for ; Wed, 3 Apr 2019 04:30:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3E6B920882 for ; Wed, 3 Apr 2019 04:30:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727032AbfDCEaS (ORCPT ); Wed, 3 Apr 2019 00:30:18 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:60230 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725941AbfDCEaS (ORCPT ); Wed, 3 Apr 2019 00:30:18 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 13D5F15AD; Tue, 2 Apr 2019 21:30:18 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.1.97]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id B6BCE3F721; Tue, 2 Apr 2019 21:30:12 -0700 (PDT) From: Anshuman Khandual To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, akpm@linux-foundation.org, will.deacon@arm.com, catalin.marinas@arm.com Cc: mhocko@suse.com, mgorman@techsingularity.net, james.morse@arm.com, mark.rutland@arm.com, robin.murphy@arm.com, cpandya@codeaurora.org, arunks@codeaurora.org, dan.j.williams@intel.com, osalvador@suse.de, logang@deltatee.com, pasha.tatashin@oracle.com, david@redhat.com, cai@lca.pw Subject: [PATCH 1/6] arm64/mm: Enable sysfs based memory hot add interface Date: Wed, 3 Apr 2019 10:00:01 +0530 Message-Id: <1554265806-11501-2-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1554265806-11501-1-git-send-email-anshuman.khandual@arm.com> References: <1554265806-11501-1-git-send-email-anshuman.khandual@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Sysfs memory probe interface (/sys/devices/system/memory/probe) can accept starting physical address of an entire memory block to be hot added into the kernel. This is in addition to the existing ACPI based interface. This just enables it with the required config CONFIG_ARCH_MEMORY_PROBE. Signed-off-by: Anshuman Khandual --- arch/arm64/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 7e34b9e..a2418fb 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -266,6 +266,15 @@ config HAVE_GENERIC_GUP config ARCH_ENABLE_MEMORY_HOTPLUG def_bool y +config ARCH_MEMORY_PROBE + bool "Enable /sys/devices/system/memory/probe interface" + depends on MEMORY_HOTPLUG + help + This option enables a sysfs /sys/devices/system/memory/probe + interface for testing. See Documentation/memory-hotplug.txt + for more information. If you are unsure how to answer this + question, answer N. + config SMP def_bool y -- 2.7.4 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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41DAAC10F06 for ; Wed, 3 Apr 2019 04:30:34 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0E68B206C0 for ; Wed, 3 Apr 2019 04:30:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="WCtSw+B5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0E68B206C0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=j3zMz9S5F96bpqkBctjpliHcMqFBAdgoH1TbIpUoZtw=; b=WCtSw+B59znxX+ooCIM03JR68x N+qb51VywHMkUMugBqNbGdRm4mhpjqf0Gg9OTPP8tr+Vr91ejGoyJpw0tGHxBowBf/HnZ0onDFkFt 3CIgNiF+RTWWF2HWovFLTGNT8tP3HGV7M4tRDCh49emLdlFmcpfn1ihjqOyDFcpxZ9/3mwUdT1b+7 /gkIM+wOSV1qhLBca8oqVh7daWhLsOi0RCE/s8dw8PHnNGDbi1kWdoqu9ygES1KedyXo1P4JFhzfI DjNxcUyjMjdjwZE7b4/zg3QRiOYT9SoR4qjIJkagO5O53lQSqhkWFOMQLBTVluOxEAak/7OpHlUWZ xlBOxHKg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hBXXc-0003fE-Pt; Wed, 03 Apr 2019 04:30:24 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hBXXW-0003WP-6t for linux-arm-kernel@lists.infradead.org; Wed, 03 Apr 2019 04:30:20 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 13D5F15AD; Tue, 2 Apr 2019 21:30:18 -0700 (PDT) Received: from p8cg001049571a15.arm.com (unknown [10.163.1.97]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id B6BCE3F721; Tue, 2 Apr 2019 21:30:12 -0700 (PDT) From: Anshuman Khandual To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, akpm@linux-foundation.org, will.deacon@arm.com, catalin.marinas@arm.com Subject: [PATCH 1/6] arm64/mm: Enable sysfs based memory hot add interface Date: Wed, 3 Apr 2019 10:00:01 +0530 Message-Id: <1554265806-11501-2-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1554265806-11501-1-git-send-email-anshuman.khandual@arm.com> References: <1554265806-11501-1-git-send-email-anshuman.khandual@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190402_213018_374768_B2E759F8 X-CRM114-Status: UNSURE ( 9.21 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, mhocko@suse.com, david@redhat.com, robin.murphy@arm.com, cai@lca.pw, pasha.tatashin@oracle.com, logang@deltatee.com, james.morse@arm.com, cpandya@codeaurora.org, arunks@codeaurora.org, dan.j.williams@intel.com, mgorman@techsingularity.net, osalvador@suse.de MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Sysfs memory probe interface (/sys/devices/system/memory/probe) can accept starting physical address of an entire memory block to be hot added into the kernel. This is in addition to the existing ACPI based interface. This just enables it with the required config CONFIG_ARCH_MEMORY_PROBE. Signed-off-by: Anshuman Khandual --- arch/arm64/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 7e34b9e..a2418fb 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -266,6 +266,15 @@ config HAVE_GENERIC_GUP config ARCH_ENABLE_MEMORY_HOTPLUG def_bool y +config ARCH_MEMORY_PROBE + bool "Enable /sys/devices/system/memory/probe interface" + depends on MEMORY_HOTPLUG + help + This option enables a sysfs /sys/devices/system/memory/probe + interface for testing. See Documentation/memory-hotplug.txt + for more information. If you are unsure how to answer this + question, answer N. + config SMP def_bool y -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel