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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0960CD767F1 for ; Thu, 31 Oct 2024 17:30:53 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 94ABD6B0083; Thu, 31 Oct 2024 13:30:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8FA8B6B0085; Thu, 31 Oct 2024 13:30:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 774326B0088; Thu, 31 Oct 2024 13:30:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 5A6856B0083 for ; Thu, 31 Oct 2024 13:30:52 -0400 (EDT) Received: from smtpin24.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id CF5F881777 for ; Thu, 31 Oct 2024 17:30:51 +0000 (UTC) X-FDA: 82734586746.24.01EAC36 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf07.hostedemail.com (Postfix) with ESMTP id 0F21440025 for ; Thu, 31 Oct 2024 17:30:10 +0000 (UTC) Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=KAzLDSa6; spf=pass (imf07.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1730395671; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=po4aGjAZdOMFvGy5VxwhLDYTRzbKRpxyFH4vyJU9YZ4=; b=iA16qrStkMN3nUj+8Bg1JVyYDZi7DEK9ij11itLdVGU3EuWB1JuaNKOHfnGXaAXk9esSHQ rwWCir9XsehSGVVPLs6Ey/Q5SxI4lTx4ISAZZ/hc5zk2z/ZjZFEZP3gLlZVvjdpW/NAj2Y VlITL9W2aMDHM1sFXtgJd5u2uPoIJ/g= ARC-Authentication-Results: i=1; imf07.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=KAzLDSa6; spf=pass (imf07.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1730395671; a=rsa-sha256; cv=none; b=0iDH7AkBh3r7pIs7XiJLLLE/GyC0OA/uCBvpuQya95/z56nBu2i1fkzQys8pfhLOSPwT/C dZDQKHsF2qczMPR6SKkbxf8lyQrcD02QJ8oFFC5q79V6LX9vHYQpDPWOdznBf8L8zan1/e yiJeJyen+r0K6L3d+7tAXWn29WJeszQ= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1730395848; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=po4aGjAZdOMFvGy5VxwhLDYTRzbKRpxyFH4vyJU9YZ4=; b=KAzLDSa6Z7AXxwvFVpiJopkLPE0lFVlWhRqm+lEaspI6kqN8NQT7QOvzJLVyQBpe88y16/ ScbUj/AaXfuroWgc3MHwU5nTME6QjCe+5HZfk0/PWcodfZNtJO+BZmNQham9nv9G5IVW2V PlS5GBvs9gYbemfFwK+7mT82KAKSHpw= Received: from mail-wr1-f69.google.com (mail-wr1-f69.google.com [209.85.221.69]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-249-Pm-y_87wOm-639DtcT2azA-1; Thu, 31 Oct 2024 13:30:40 -0400 X-MC-Unique: Pm-y_87wOm-639DtcT2azA-1 Received: by mail-wr1-f69.google.com with SMTP id ffacd0b85a97d-37d67f4bf98so517054f8f.1 for ; Thu, 31 Oct 2024 10:30:40 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730395840; x=1731000640; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:from:references:cc:to:subject:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=po4aGjAZdOMFvGy5VxwhLDYTRzbKRpxyFH4vyJU9YZ4=; b=eMP1xIL+N9+J+ZVRdjMIMcDGHS26HMl3VYQl4XdRSmEEriLGnznRrvNW/gxdLkUQZI ttM8Y+esAmdDIN3fTYkrhzaVyTc2Mdzuu9AtUrC1dw5GnG/9b6Uol1m7L9yV2EcSBdu6 tuY4KmisGIS7+MPxu9yJEG2HDbDxgXwN+vtt2iPG6a+k474VovR6sx68mX4EKApps84v xUNUvLOnjFtUEGbSbx7UvqL0P1fUNYb64nTwB1cpRdQHTOVqXhr+Ad6u7x0G/O7YJwZc eXZpW01ycy7+CVqLn09q6v2DriT9wK33A2FqF11cAAak+GISqjb0yEg9ExK+V+CqLKVf gbQw== X-Forwarded-Encrypted: i=1; AJvYcCVh/5TzDPbiQfHmad90eSupBLpdKPXn+lIjs7mUAYDUI1XBxw4AS0vLIEe0QaBFnPqYzREhcsKmbw==@kvack.org X-Gm-Message-State: AOJu0Yyepcd3B1WOI+PYh/oyY9TJvMTrkOYsnP3iWO/kwYTYRiXayGTp dNVUy+NV863H6k+Wyi8+KOufufyOKwv/norWA1zipWXXNb3imDuqLd4DEtH6QpkkZxbPdkBzgQa WpVXatOFU2HEo6Aofl8AjTEmvRoJGEmQMnptp7Sf/3uTlWJq5 X-Received: by 2002:adf:ce89:0:b0:37d:476d:2d58 with SMTP id ffacd0b85a97d-380611e56aemr13825434f8f.45.1730395839709; Thu, 31 Oct 2024 10:30:39 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEEi4RPqd4a5QbOU7yDumOOtBgboxiLYO1zuyID1truLpjoe27PGIaeDpB/SPHnzDghbR46aA== X-Received: by 2002:adf:ce89:0:b0:37d:476d:2d58 with SMTP id ffacd0b85a97d-380611e56aemr13825396f8f.45.1730395839298; Thu, 31 Oct 2024 10:30:39 -0700 (PDT) Received: from ?IPV6:2003:cb:c70a:ed00:7ddf:1ea9:4f7a:91fe? (p200300cbc70aed007ddf1ea94f7a91fe.dip0.t-ipconnect.de. [2003:cb:c70a:ed00:7ddf:1ea9:4f7a:91fe]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-381c10e7280sm2745874f8f.59.2024.10.31.10.30.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 31 Oct 2024 10:30:38 -0700 (PDT) Message-ID: <3b5d2bf2-2d27-43a1-86fe-076878823edf@redhat.com> Date: Thu, 31 Oct 2024 18:30:37 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 0/7] virtio-mem: s390 support To: Sumanth Korikkar Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, virtualization@lists.linux.dev, linux-doc@vger.kernel.org, kvm@vger.kernel.org, Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Huth , Cornelia Huck , Janosch Frank , Claudio Imbrenda , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?UTF-8?Q?Eugenio_P=C3=A9rez?= , Eric Farman , Andrew Morton , Jonathan Corbet References: <20241025141453.1210600-1-david@redhat.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 0F21440025 X-Stat-Signature: stftmn5bwpypxp1oa8mne38tb63m4mkt X-Rspam-User: X-HE-Tag: 1730395810-172307 X-HE-Meta: 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 R9oe3WOJ 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 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: List-Subscribe: List-Unsubscribe: On 31.10.24 17:47, Sumanth Korikkar wrote: > On Thu, Oct 31, 2024 at 05:27:06PM +0100, Sumanth Korikkar wrote: >> On Fri, Oct 25, 2024 at 04:14:45PM +0200, David Hildenbrand wrote: >>> Let's finally add s390 support for virtio-mem; my last RFC was sent >>> 4 years ago, and a lot changed in the meantime. >>> >>> The latest QEMU series is available at [1], which contains some more >>> details and a usage example on s390 (last patch). >>> >>> There is not too much in here: The biggest part is querying a new diag(500) >>> STORAGE_LIMIT hypercall to obtain the proper "max_physmem_end". >>> >>> The last three patches are not strictly required but certainly nice-to-have. >>> >>> Note that -- in contrast to standby memory -- virtio-mem memory must be >>> configured to be automatically onlined as soon as hotplugged. The easiest >>> approach is using the "memhp_default_state=" kernel parameter or by using >>> proper udev rules. More details can be found at [2]. >>> >>> I have reviving+upstreaming a systemd service to handle configuring >>> that on my todo list, but for some reason I keep getting distracted ... >>> >>> I tested various things, including: >>> * Various memory hotplug/hotunplug combinations >>> * Device hotplug/hotunplug >>> * /proc/iomem output >>> * reboot >>> * kexec >>> * kdump: make sure we properly enter the "kdump mode" in the virtio-mem >>> driver >>> >>> kdump support for virtio-mem memory on s390 will be sent out separately. >>> >>> v2 -> v3 >>> * "s390/kdump: make is_kdump_kernel() consistently return "true" in kdump >>> environments only" >>> -> Sent out separately [3] >>> * "s390/physmem_info: query diag500(STORAGE LIMIT) to support QEMU/KVM memory >>> devices" >>> -> No query function for diag500 for now. >>> -> Update comment above setup_ident_map_size(). >>> -> Optimize/rewrite diag500_storage_limit() [Heiko] >>> -> Change handling in detect_physmem_online_ranges [Alexander] >>> -> Improve documentation. >>> * "s390/sparsemem: provide memory_add_physaddr_to_nid() with CONFIG_NUMA" >>> -> Added after testing on systems with CONFIG_NUMA=y >>> >>> v1 -> v2: >>> * Document the new diag500 subfunction >>> * Use "s390" instead of "s390x" consistently >>> >>> [1] https://lkml.kernel.org/r/20241008105455.2302628-1-david@redhat.com >>> [2] https://virtio-mem.gitlab.io/user-guide/user-guide-linux.html >>> [3] https://lkml.kernel.org/r/20241023090651.1115507-1-david@redhat.com >>> >>> Cc: Heiko Carstens >>> Cc: Vasily Gorbik >>> Cc: Alexander Gordeev >>> Cc: Christian Borntraeger >>> Cc: Sven Schnelle >>> Cc: Thomas Huth >>> Cc: Cornelia Huck >>> Cc: Janosch Frank >>> Cc: Claudio Imbrenda >>> Cc: "Michael S. Tsirkin" >>> Cc: Jason Wang >>> Cc: Xuan Zhuo >>> Cc: "Eugenio P?rez" >>> Cc: Eric Farman >>> Cc: Andrew Morton >>> Cc: Jonathan Corbet >>> >>> David Hildenbrand (7): >>> Documentation: s390-diag.rst: make diag500 a generic KVM hypercall >>> Documentation: s390-diag.rst: document diag500(STORAGE LIMIT) >>> subfunction >>> s390/physmem_info: query diag500(STORAGE LIMIT) to support QEMU/KVM >>> memory devices >>> virtio-mem: s390 support >>> lib/Kconfig.debug: default STRICT_DEVMEM to "y" on s390 >>> s390/sparsemem: reduce section size to 128 MiB >>> s390/sparsemem: provide memory_add_physaddr_to_nid() with CONFIG_NUMA >>> >>> Documentation/virt/kvm/s390/s390-diag.rst | 35 +++++++++++++---- >>> arch/s390/boot/physmem_info.c | 47 ++++++++++++++++++++++- >>> arch/s390/boot/startup.c | 7 +++- >>> arch/s390/include/asm/physmem_info.h | 3 ++ >>> arch/s390/include/asm/sparsemem.h | 10 ++++- >>> drivers/virtio/Kconfig | 12 +++--- >>> lib/Kconfig.debug | 2 +- >>> 7 files changed, 98 insertions(+), 18 deletions(-) >>> >>> >>> base-commit: ae90f6a6170d7a7a1aa4fddf664fbd093e3023bc >>> -- >>> 2.46.1 >>> >> >> Tested successfully various memory hotplug operations on lpar. >> > Just to be more precise, tested memory hotplug/hotunplug combinations + > Device hotplug/hotunplug operations on guest. Thanks a bunch! -- Cheers, David / dhildenb