Crate dbs_address_space

Traits and Structs to manage guest physical address space for virtual machines.

The vm-memory implements mechanisms to manage and access guest memory resident in guest physical address space. In addition to guest memory, there may be other type of devices resident in the same guest physical address space.

The dbs-address-space crate provides traits and structs to manage the guest physical address space for virtual machines, and mechanisms to coordinate all the devices resident in the guest physical address space.

Structs

• AddressSpace
  An address space implementation with region hotplug capability.
• AddressSpaceBase
  Base implementation to manage guest physical address space, without support of region hotplug.
• AddressSpaceLayout
  Address space layout configuration.
• AddressSpaceRegion
  Struct to maintain configuration information about a guest address region.
• GuestMemoryHybrid
  GuestMemory implementation that manage hybrid types of guest memory regions.
• GuestMemoryManager
  The GuestMemoryManager manages all guest memory for virtual machines.
• GuestRegionRaw
  Guest memory region for virtio-fs DAX window.
• NumaIdTable
  Type for recording numa ids of different devices
• NumaNode
  Record all region’s info of a numa node.
• NumaNodeInfo
  Record numa node memory information.
• USABLE_END
  Upper bound of host memory.

Enums

• AddressSpaceError
  Errors associated with virtual machine address space management.
• AddressSpaceRegionType
  Type of address space regions.
• GuestRegionHybrid
  An adapter for different concrete implementations of GuestMemoryRegion.

Constants

• MPOL_MF_MOVE
  Strategy of mbind()
• MPOL_PREFERRED
  Strategy of mbind() and don’t lead to OOM.