From: David Hildenbrand <david@redhat•com>
To: linux-kernel@vger•kernel.org
Cc: linux-hyperv@vger•kernel.org, Michal Hocko <mhocko@suse•com>,
"Michael S . Tsirkin" <mst@redhat•com>,
Jason Wang <jasowang@redhat•com>,
Dave Hansen <dave.hansen@linux•intel.com>,
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Pingfan Liu <kernelfans@gmail•com>,
virtualization@lists•linux-foundation.org, linux-mm@kvack•org,
Paul Mackerras <paulus@samba•org>,
"K. Y. Srinivasan" <kys@microsoft•com>,
Dan Williams <dan.j.williams@intel•com>,
virtio-dev@lists•oasis-open.org, Wei Liu <wei.liu@kernel•org>,
Stefano Stabellini <sstabellini@kernel•org>,
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Michal Hocko <mhocko@kernel•org>,
Christian Borntraeger <borntraeger@de•ibm.com>,
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Juergen Gross <jgross@suse•com>,
Pankaj Gupta <pankaj.gupta.linux@gmail•com>,
Greg Kroah-Hartman <gregkh@linuxfoundation•org>,
"Rafael J. Wysocki" <rjw@rjwysocki•net>,
Thomas Gleixner <tglx@linutronix•de>,
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linuxppc-dev@lists•ozlabs.org
Subject: [PATCH v2 0/3] mm/memory_hotplug: Allow to not create firmware memmap entries
Date: Thu, 30 Apr 2020 12:29:05 +0200 [thread overview]
Message-ID: <20200430102908.10107-1-david@redhat.com> (raw)
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/kmem
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(-)
--
2.25.3
next reply other threads:[~2020-04-30 10:32 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-30 10:29 David Hildenbrand [this message]
2020-04-30 10:29 ` [PATCH v2 1/3] mm/memory_hotplug: Prepare passing flags to add_memory() and friends David Hildenbrand
2020-04-30 10:29 ` [PATCH v2 2/3] mm/memory_hotplug: Introduce MHP_NO_FIRMWARE_MEMMAP David Hildenbrand
2020-04-30 15:38 ` Eric W. Biederman
2020-04-30 15:52 ` David Hildenbrand
2020-04-30 16:04 ` Dave Hansen
2020-04-30 16:33 ` Eric W. Biederman
2020-04-30 16:49 ` David Hildenbrand
2020-04-30 18:06 ` Eric W. Biederman
2020-04-30 18:43 ` David Hildenbrand
2020-04-30 18:58 ` Dan Williams
2020-04-30 22:24 ` Andrew Morton
2020-05-01 9:34 ` David Hildenbrand
2020-05-01 16:56 ` Dan Williams
2020-05-01 17:21 ` David Hildenbrand
2020-05-01 17:39 ` Dan Williams
2020-05-01 17:45 ` David Hildenbrand
2020-05-01 17:51 ` David Hildenbrand
2020-05-01 18:03 ` Dan Williams
2020-05-01 18:14 ` David Hildenbrand
2020-05-01 18:43 ` Dan Williams
2020-05-01 19:17 ` David Hildenbrand
2020-05-01 20:12 ` Dan Williams
2020-05-01 21:10 ` David Hildenbrand
2020-05-01 21:52 ` Dan Williams
2020-05-02 9:26 ` David Hildenbrand
2020-05-02 18:03 ` Dan Williams
2020-04-30 10:29 ` [PATCH v2 3/3] device-dax: Add system ram (add_memory()) with MHP_NO_FIRMWARE_MEMMAP David Hildenbrand
2020-04-30 11:23 ` Dave Hansen
2020-04-30 15:28 ` David Hildenbrand
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