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Thu, 31 Oct 2024 14:52:03 GMT Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B7D7B5805C; Thu, 31 Oct 2024 14:52:02 +0000 (GMT) Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DDC8358051; Thu, 31 Oct 2024 14:52:00 +0000 (GMT) Received: from li-479af74c-31f9-11b2-a85c-e4ddee11713b.ibm.com (unknown [9.67.19.177]) by smtpav02.dal12v.mail.ibm.com (Postfix) with ESMTP; Thu, 31 Oct 2024 14:52:00 +0000 (GMT) Message-ID: <3713941b040d7ba2528c11b820bbb362a17b33d9.camel@linux.ibm.com> Subject: Re: [PATCH v3 0/7] virtio-mem: s390 support From: Eric Farman To: Christian Borntraeger , Heiko Carstens , David Hildenbrand 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 , Eugenio =?ISO-8859-1?Q?P=E9rez?= , Andrew Morton , Jonathan Corbet , Hendrik Brueckner Date: Thu, 31 Oct 2024 10:52:00 -0400 In-Reply-To: <67a85d88-6705-4e8e-ba48-7b945aca4d8f@linux.ibm.com> References: <20241025141453.1210600-1-david@redhat.com> <20241030093453.6264-H-hca@linux.ibm.com> <67a85d88-6705-4e8e-ba48-7b945aca4d8f@linux.ibm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.52.4 (3.52.4-2.fc40) MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: RZZHKLG0DjRZaVpObym4PP_q71cjF6_I X-Proofpoint-GUID: S4IY6Vq2BQurOvyMtvCHK31wWN3P9WEN 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 phishscore=0 adultscore=0 bulkscore=0 mlxlogscore=999 clxscore=1011 priorityscore=1501 suspectscore=0 lowpriorityscore=0 mlxscore=0 impostorscore=0 malwarescore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410310110 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 757A514000F X-Stat-Signature: m5nzq75ffdtrdwemz1zt1c9nf9atzxga X-Rspam-User: X-HE-Tag: 1730386307-838608 X-HE-Meta: U2FsdGVkX18cd6L0K+VzJPPNqBxumIbnjBIxXOzTnd1Ne76OMOIaQoy+4BRtPAtFjGt0TCfplTD5o7UeIA8HDFPekt/vA1coahDEXJsibi6nOQs6FmD0LROcPPaTUobnrc5VleaQv/58hHlCrhsO5Hpi0h5cf3xYQXBdv+YpTO1PpzKzbUNrZnF1KGqwCO+QU9gWpc5DA08Grj2oTpzZTrHAHnZLBZt4goEdz7nkby9D48SGvZO4zUdwNZJCf6RYuLOPYYAfO64xI2sfdWXi0kS+cgyeh4K1knKrwZJvkd99waJ5Yy2rDpaLPWxWYaEI4Zcohjr6CBpLYdUljdqulHY7Kg67FsKMfuluA4afIFWQJiV/lKdd5nqiZiHSIGZKwt6+8H3ddyZHk64WiUAxJxPJUlpzYDYw9ql/F2yPIXyrwYrkgXnKruRtk0UvhfV9DM1iZQaocGoAWZqVeKbX0P+FScjMkMOpJahwmynuhYbBjXv/h6PmSLh/2j6pqRkmEWThgePgZVSnCXbvjYB0JQMwGx5eO4YrSGQpdG4hTYbYlPo5M5C9TO06Iq3yXQM+wygQRs87bsilH9xZv7QUvghlavVvCLTOtUapcvdsmEPqAqFwYH7zbJS5CpWcA9J3lHxCitlPJJDS6+TzKhoZs6wCKXeohcIeHaUnH8nh3kzLzpvzPcIwmTMzy80D55gByceDCijMO75yJNPTB7caFM7qraoIwVzPSdAfJ5hm4c4TSeEy8rYwAsK20GzCc63vDfzml2xZWVjLbuVerV3eK3zfmXzZC70I/JSl+lMvgM606OPgODkYI+7GoT+Uv+QURcr0n3PUFrfMyzXLmvJ4AV2SH+pTPTSTUU4+wDA9oJ8xS2yQ+BmXTIts+njTJdHDpRpLA9o/dvNt5+1eDO0b+vr41TfT+6YPpvV0O3cjNj0AFpQJOHFPHzxEiV8E/z5tOarPEiWzfxGclgpglbP 6nRbl7tD GUyTqDnUoNLvVFcPDYEpJu96J0JkVeVIa8DJrWJjkAOCXaomP7jU83M+tg6aA5Vax3XzNMgjSBbeIiaQsPjvhfRFNZ9Y1A00FmGSPLWc8ecHtzgYcEI3yop1DmHSTmjxQuC9HeqBNn29VP4cB9ZcYsKE0sLRveo+QEMPQYk9Numt/ZtqKSdWwItwLGylZZaW7WdTnnztDSNGbxJFQNE4qnKcW0gNWbdlDquV6SAMYlfIcIwKbIPhTdB6wtimiCVhz1u9CVLNrgKC0kSV254Ud1LloJQVBBe/MAlncvpgo/FKTi7zfJ6iSQD68nQ== 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 Wed, 2024-10-30 at 17:49 +0100, Christian Borntraeger wrote: >=20 > 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. > > >=20 > > > The latest QEMU series is available at [1], which contains some more > > > details and a usage example on s390 (last patch). > > >=20 > > > There is not too much in here: The biggest part is querying a new dia= g(500) > > > STORAGE_LIMIT hypercall to obtain the proper "max_physmem_end". > >=20 > > ... > >=20 > > > 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/KV= M > > > 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_N= UMA > > >=20 > > > 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(-) > >=20 > > 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? >=20 > Acked-by: Christian Borntraeger > for the series. >=20 > @Eric Farman, > Was someone from your team planning to look into this (testing, review wh= atever)? The guy that was testing it just got back from a long holiday. I'll ping hi= m and see if he can chime in here.