What:		/sys/devices/system/memoryDate:		June 2008Contact:	Badari Pulavarty <pbadari@us.ibm.com>Description:		The /sys/devices/system/memory contains a snapshot of the		internal state of the kernel memory blocks. Files could be		added or removed dynamically to represent hot-add/remove		operations.Users:		hotplug memory add/remove tools		https://w3.opensource.ibm.com/projects/powerpc-utils/What:		/sys/devices/system/memory/memoryX/removableDate:		June 2008Contact:	Badari Pulavarty <pbadari@us.ibm.com>Description:		The file /sys/devices/system/memory/memoryX/removable		indicates whether this memory block is removable or not.		This is useful for a user-level agent to determine		identify removable sections of the memory before attempting		potentially expensive hot-remove memory operationUsers:		hotplug memory remove tools		https://w3.opensource.ibm.com/projects/powerpc-utils/What:		/sys/devices/system/memory/memoryX/phys_deviceDate:		September 2008Contact:	Badari Pulavarty <pbadari@us.ibm.com>Description:		The file /sys/devices/system/memory/memoryX/phys_device		is read-only and is designed to show the name of physical		memory device.  Implementation is currently incomplete.What:		/sys/devices/system/memory/memoryX/phys_indexDate:		September 2008Contact:	Badari Pulavarty <pbadari@us.ibm.com>Description:		The file /sys/devices/system/memory/memoryX/phys_index		is read-only and contains the section ID in hexadecimal		which is equivalent to decimal X contained in the		memory section directory name.What:		/sys/devices/system/memory/memoryX/stateDate:		September 2008Contact:	Badari Pulavarty <pbadari@us.ibm.com>Description:		The file /sys/devices/system/memory/memoryX/state		is read-write.  When read, it's contents show the		online/offline state of the memory section.  When written,		root can toggle the the online/offline state of a removable		memory section (see removable file description above)		using the following commands.		# echo online > /sys/devices/system/memory/memoryX/state		# echo offline > /sys/devices/system/memory/memoryX/state		For example, if /sys/devices/system/memory/memory22/removable		contains a value of 1 and		/sys/devices/system/memory/memory22/state contains the		string "online" the following command can be executed by		by root to offline that section.		# echo offline > /sys/devices/system/memory/memory22/stateUsers:		hotplug memory remove tools		https://w3.opensource.ibm.com/projects/powerpc-utils/What:		/sys/devices/system/node/nodeX/memoryYDate:		September 2008Contact:	Gary Hade <garyhade@us.ibm.com>Description:		When CONFIG_NUMA is enabled		/sys/devices/system/node/nodeX/memoryY is a symbolic link that		points to the corresponding /sys/devices/system/memory/memoryY		memory section directory.  For example, the following symbolic		link is created for memory section 9 on node0.		/sys/devices/system/node/node0/memory9 -> ../../memory/memory9