On 08/19/2016 11:40 AM, Xiao Guangrong wrote:
On 08/19/2016 02:54 AM, Vishal Verma wrote:
On 08/18, Dan Williams wrote:
[ adding Vishal who implemented the kernel side of nvdimm hotplug support ]
On Thu, Aug 11, 2016 at 11:54 PM, Xiao Guangrong
<guangrong.xiao@xxxxxxxxxxxxxxx> wrote:
This patchset is against commit c597dc90fbcd6 (virtio-net: allow increasing
rx queue siz) on pci branch of Michael's git tree and can be found at:
https://github.com/xiaogr/qemu.git nvdimm-hotplug-v2
Changelog in v2:
Fixed signed integer overflow pointed out by Stefan Hajnoczi
This patchset enables nvdimm hotplug support, it is used as pc-dimm hotplug,
for example, a new nvdimm device can be plugged as follows:
object_add memory-backend-file,id=mem3,size=10G,mem-path=/home/eric/nvdimm3
device_add nvdimm,id=nvdimm3,memdev=mem3
and unplug it as follows:
device_del nvdimm3
object_del mem3
Did you test this against the Linux NFIT hotplug support? We just
found that the Linux driver is not properly registering for ACPI0012
event notification. Is a notification sent on a 'device_add' event?
I've just sent out a patch that should fix this:
https://lists.01.org/pipermail/linux-nvdimm/2016-August/006637.html
Interesting. I am using the kvm tree, queue branch, the top commit is
8ff7b956471f:
Merge tag 'kvm-s390-next-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel
It works.
It triggers 'notify' event, not 'device add'.
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