Commit 2d40178a authored by Paolo Bonzini's avatar Paolo Bonzini Committed by Michael Tokarev
Browse files

docs: mention AddressSpaces in docs/memory.txt 



Reported-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: default avatarMichael Tokarev <mjt@tls.msk.ru>
parent 59d82762

docs/memory.txt

+7 −4
Original line number Diff line number Diff line
@@ -15,10 +15,13 @@ The memory model provides support for 
 - setting up coalesced memory for kvm

 - setting up ioeventfd regions for kvm



Memory is modelled as a tree (really acyclic graph) of MemoryRegion objects.

The root of the tree is memory as seen from the CPU's viewpoint (the system

bus).  Nodes in the tree represent other buses, memory controllers, and

memory regions that have been rerouted.  Leaves are RAM and MMIO regions.

Memory is modelled as an acyclic graph of MemoryRegion objects.  Sinks

(leaves) are RAM and MMIO regions, while other nodes represent

buses, memory controllers, and memory regions that have been rerouted.



In addition to MemoryRegion objects, the memory API provides AddressSpace

objects for every root and possibly for intermediate MemoryRegions too.

These represent memory as seen from the CPU or a device's viewpoint.



Types of regions

----------------