kvm

Documentation

Overview

Package kvm provides a kvm-based implementation of the platform interface.

Index

• func TranslateToPhysical(virtual uintptr) (physical uintptr, length uintptr, ok bool)
• type KVM
  • func New() (*KVM, error)
  • func (*KVM) CooperativelySchedulesAddressSpace() bool
  • func (*KVM) MapUnit() uint64
  • func (*KVM) MaxUserAddress() usermem.Addr
  • func (k *KVM) Memory() platform.Memory
  • func (*KVM) MinUserAddress() usermem.Addr
  • func (k *KVM) NewAddressSpace(_ interface{}) (platform.AddressSpace, <-chan struct{}, error)
  • func (k *KVM) NewContext() platform.Context
  • func (*KVM) SupportsAddressSpaceIO() bool

Functions

func TranslateToPhysical

func TranslateToPhysical(virtual uintptr) (physical uintptr, length uintptr, ok bool)

TranslateToPhysical translates the given virtual address.

Precondition: physicalInit must have been called.

Types

type KVM

type KVM struct {
	platform.NoCPUPreemptionDetection

	// filemem is our memory source.
	*filemem.FileMem
	// contains filtered or unexported fields
}

KVM represents a lightweight VM context.

func New

func New() (*KVM, error)

New returns a new KVM-based implementation of the platform interface.

func (*KVM) CooperativelySchedulesAddressSpace

func (*KVM) CooperativelySchedulesAddressSpace() bool

CooperativelySchedulesAddressSpace implements platform.Platform.CooperativelySchedulesAddressSpace.

func (*KVM) MapUnit

func (*KVM) MapUnit() uint64

MapUnit implements platform.Platform.MapUnit.

func (*KVM) MaxUserAddress

func (*KVM) MaxUserAddress() usermem.Addr

MaxUserAddress returns the first address that may not be used.

func (*KVM) Memory

func (k *KVM) Memory() platform.Memory

Memory returns the platform memory used to do allocations.

func (*KVM) MinUserAddress

func (*KVM) MinUserAddress() usermem.Addr

MinUserAddress returns the lowest available address.

func (*KVM) NewAddressSpace

func (k *KVM) NewAddressSpace(_ interface{}) (platform.AddressSpace, <-chan struct{}, error)

NewAddressSpace returns a new pagetable root.

func (*KVM) NewContext

func (k *KVM) NewContext() platform.Context

NewContext returns an interruptible context.

func (*KVM) SupportsAddressSpaceIO

func (*KVM) SupportsAddressSpaceIO() bool

SupportsAddressSpaceIO implements platform.Platform.SupportsAddressSpaceIO.