Merged in v5.3-rc1
commit 40cdc60ac16a42eb4e013f84d0e7aa1d6ee060d3
Author: Vishal Verma <vishal.l.ve...@intel.com>
Date: Thu Jun 20 18:40:38 2019 -0600
device-dax: Add a 'resource' attribute
device-dax based devices were missing a 'resource' attribute to indicate
the physical address range contributed by the device in question. This
information is desirable to userspace tooling that may want to use the
dax device as system-ram, and wants to selectively hotplug and online
the memory blocks associated with a given device.
Without this, the tooling would have to parse /proc/iomem for the memory
ranges contributed by dax devices, which can be a workaround, but it is
far easier to provide this information in the sysfs hierarchy.
Cc: Dave Hansen <dave.han...@linux.intel.com>
Cc: Dan Williams <dan.j.willi...@intel.com>
Signed-off-by: Vishal Verma <vishal.l.ve...@intel.com>
Signed-off-by: Dan Williams <dan.j.willi...@intel.com>
** Changed in: intel
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1835347
Title:
device_dax - export a 'resource' attribute for dax devices
Status in intel:
Fix Committed
Status in linux package in Ubuntu:
Incomplete
Bug description:
Description:
device_dax devices need to export a resource attribute so that libdaxctl
can use it to find the address range for the device. This is required for
onlining/offlining memory associated with a device in the system-ram mode
(i.e. kmem).
Target Release: 19.10
Target Kernel: 5.3
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