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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 E1C6AC8300C for ; Thu, 30 Apr 2020 10:29:47 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A513720838 for ; Thu, 30 Apr 2020 10:29:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="OVSlYlCZ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A513720838 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 5DBD98E0005; Thu, 30 Apr 2020 06:29:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 58B158E0001; Thu, 30 Apr 2020 06:29:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 455248E0005; Thu, 30 Apr 2020 06:29:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0045.hostedemail.com [216.40.44.45]) by kanga.kvack.org (Postfix) with ESMTP id 2F64D8E0001 for ; Thu, 30 Apr 2020 06:29:46 -0400 (EDT) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id D624D2493 for ; Thu, 30 Apr 2020 10:29:45 +0000 (UTC) X-FDA: 76764150330.04.bee11_55324ea4f7e5d X-HE-Tag: bee11_55324ea4f7e5d X-Filterd-Recvd-Size: 5402 Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) by imf22.hostedemail.com (Postfix) with ESMTP for ; Thu, 30 Apr 2020 10:29:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588242584; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=F00GW0IDxO2YtXf8I1Htd7Li0LSvuJyIHlJhh9ba9cc=; b=OVSlYlCZ2E3cHN0Js+7WHt5F1UfPjr1sI639y5jPoY/o5E2c0Rjfcnc2i8iymUtQTxujJU R+c8aNGTDnYlI+DGUp6GNvmaDED+6ot8ymJwCGYeaYi7oJAPClpWpT89FDlvlR406D2UAR zZTExmFEMkIxhq2XFZIg53dVl5iwqwk= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-319-F5xrMv_8M0upE38nqrJ6fA-1; Thu, 30 Apr 2020 06:29:37 -0400 X-MC-Unique: F5xrMv_8M0upE38nqrJ6fA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0BD301899521; Thu, 30 Apr 2020 10:29:32 +0000 (UTC) Received: from t480s.redhat.com (ovpn-113-172.ams2.redhat.com [10.36.113.172]) by smtp.corp.redhat.com (Postfix) with ESMTP id 963F15D780; Thu, 30 Apr 2020 10:29:16 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, virtio-dev@lists.oasis-open.org, virtualization@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org, linux-acpi@vger.kernel.org, linux-nvdimm@lists.01.org, linux-hyperv@vger.kernel.org, linux-s390@vger.kernel.org, xen-devel@lists.xenproject.org, Michal Hocko , Andrew Morton , "Michael S . Tsirkin" , David Hildenbrand , Baoquan He , Benjamin Herrenschmidt , Boris Ostrovsky , Christian Borntraeger , Dan Williams , Dave Hansen , Dave Jiang , Eric Biederman , Greg Kroah-Hartman , Haiyang Zhang , Heiko Carstens , Jason Wang , Juergen Gross , "K. Y. Srinivasan" , Len Brown , Leonardo Bras , Michael Ellerman , Michal Hocko , Nathan Lynch , Oscar Salvador , Pankaj Gupta , Paul Mackerras , Pavel Tatashin , Pingfan Liu , "Rafael J. Wysocki" , Stefano Stabellini , Stephen Hemminger , Thomas Gleixner , Vasily Gorbik , Vishal Verma , Wei Liu , Wei Yang Subject: [PATCH v2 0/3] mm/memory_hotplug: Allow to not create firmware memmap entries Date: Thu, 30 Apr 2020 12:29:05 +0200 Message-Id: <20200430102908.10107-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This is the follow up of [1]: [PATCH v1 0/3] mm/memory_hotplug: Make virtio-mem play nicely with kexec-tools I realized that this is not only helpful for virtio-mem, but also for dax/kmem - it's a fix for that use case (see patch #3) of persistent memory. Also, while testing, I discovered that kexec-tools will *not* add dax/kme= m memory (anything not directly under the root when parsing /proc/iomem) to the elfcorehdr, so this memory will never get included in a dump. This probably has to be fixed in kexec-tools - virtio-mem will require this as well. v1 -> v2: - Don't change the resource name - Rename the flag to MHP_NO_FIRMWARE_MEMMAP to reflect what it is doing - Rephrase subjects/descriptions - Use the flag for dax/kmem I'll have to rebase virtio-mem on these changes, there will be a resend. [1] https://lkml.kernel.org/r/20200429160803.109056-1-david@redhat.com David Hildenbrand (3): mm/memory_hotplug: Prepare passing flags to add_memory() and friends mm/memory_hotplug: Introduce MHP_NO_FIRMWARE_MEMMAP device-dax: Add system ram (add_memory()) with MHP_NO_FIRMWARE_MEMMAP arch/powerpc/platforms/powernv/memtrace.c | 2 +- arch/powerpc/platforms/pseries/hotplug-memory.c | 2 +- drivers/acpi/acpi_memhotplug.c | 2 +- drivers/base/memory.c | 2 +- drivers/dax/kmem.c | 3 ++- drivers/hv/hv_balloon.c | 2 +- drivers/s390/char/sclp_cmd.c | 2 +- drivers/xen/balloon.c | 2 +- include/linux/memory_hotplug.h | 15 ++++++++++++--- mm/memory_hotplug.c | 14 ++++++++------ 10 files changed, 29 insertions(+), 17 deletions(-) --=20 2.25.3