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Wed, 30 Oct 2024 16:49:17 GMT Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2EDAD2004B; Wed, 30 Oct 2024 16:49:17 +0000 (GMT) Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4805720040; Wed, 30 Oct 2024 16:49:16 +0000 (GMT) Received: from [9.171.2.34] (unknown [9.171.2.34]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 30 Oct 2024 16:49:16 +0000 (GMT) Message-ID: <67a85d88-6705-4e8e-ba48-7b945aca4d8f@linux.ibm.com> Date: Wed, 30 Oct 2024 17:49:15 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 0/7] virtio-mem: s390 support To: Heiko Carstens , David Hildenbrand , Eric Farman 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, Vasily Gorbik , Alexander Gordeev , Sven Schnelle , Thomas Huth , Cornelia Huck , Janosch Frank , Claudio Imbrenda , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?UTF-8?Q?Eugenio_P=C3=A9rez?= , Andrew Morton , Jonathan Corbet , Hendrik Brueckner References: <20241025141453.1210600-1-david@redhat.com> <20241030093453.6264-H-hca@linux.ibm.com> Content-Language: en-US From: Christian Borntraeger In-Reply-To: <20241030093453.6264-H-hca@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: qom_Th8fefJ6KQNAeS0Ea6VlUPdeBuG0 X-Proofpoint-GUID: lghy8jOAyVd359QXEI4RS9zRmCQXmgAp X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 adultscore=0 phishscore=0 bulkscore=0 mlxlogscore=999 impostorscore=0 spamscore=0 suspectscore=0 mlxscore=0 malwarescore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410300131 X-Rspam-User: X-Rspamd-Queue-Id: 92531180007 X-Rspamd-Server: rspam01 X-Stat-Signature: 9k7yqx5q136cw743eh9pejxbinqcse7j X-HE-Tag: 1730306945-529991 X-HE-Meta: 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 GnAXVcZl 1PRfda3V+x7ILg+NYCF93O0J1mYY+jX389B0pPQ0hWPVAr/rEf326cG1JMuapY6+KLCzttYkyE3gl3HSpFT5WIm3WWewWF6/Aq8pnEdIPW2iUigRX5cQwNLxR3+5gj2B6UWIAuUsqhAR/iGjALt7JvCS7JJTlPcHfKTn6A78vpk68q8/dFMeMRV+DXrsrXANVydU1RCzlo5pIQrTSpR0DDMo2yZ0eKGh5TpJu3vgjlelcuFQlAJrVMmXj7ZLhQ1Hmfnom 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: Am 30.10.24 um 10:34 schrieb Heiko Carstens: > 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". > > ... > >> 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(-) > > I'll apply the whole series as soon as there are ACKs for the third > patch, and from the KVM guys for the whole series. > Christian, Janosch, Claudio? Acked-by: Christian Borntraeger for the series. @Eric Farman, Was someone from your team planning to look into this (testing, review whatever)?