base.hh File Reference

#include "arch/isa_traits.hh"
#include "base/bitunion.hh"
#include "base/callback.hh"
#include "dev/virtio/virtio_ring.h"
#include "mem/port_proxy.hh"
#include "sim/sim_object.hh"

Go to the source code of this file.

Classes
class	VirtDescriptor
	VirtIO descriptor (chain) wrapper. More...
class	VirtQueue
	Base wrapper around a virtqueue. More...
class	VirtQueue::VirtRing< T >
	VirtIO ring buffer wrapper. More...
struct	VirtQueue::VirtRing< T >::Header
class	VirtIODeviceBase
	Base class for all VirtIO-based devices. More...
class	VirtIODummyDevice

Functions
VirtIO endian conversion helpers
VirtIO prior to version 1.0 (legacy versions) normally send values to the host in the guest systems native byte order. This is going to change in version 1.0 which mandates little endian. We currently only support the legacy version of VirtIO (the new and shiny standard is still in a draft state and not implemented by the kernel). Once we support the new standard, we should negotiate the VirtIO version with the guest and automatically use the right type of byte swapping.
template<typename T >
T	vtoh_legacy (T v)
	Convert legacy VirtIO endianness to host endianness. More...
template<typename T >
T	htov_legacy (T v)
	Convert host endianness to legacy VirtIO endianness. More...
template<>
vring_used_elem	vtoh_legacy (vring_used_elem v)
template<>
vring_used_elem	htov_legacy (vring_used_elem v)
template<>
vring_desc	vtoh_legacy (vring_desc v)
template<>
vring_desc	htov_legacy (vring_desc v)

Function Documentation

template<typename T >

T htov_legacy ( T  v )

inline

Convert host endianness to legacy VirtIO endianness.

Definition at line 76 of file base.hh.

References BigEndianGuest::htog().

Referenced by htov_legacy(), VirtIOBlock::RequestQueue::onNotifyDescriptor(), VirtIOConsole::readConfig(), VirtIOBlock::readConfig(), VirtIO9PBase::VirtIO9PBase(), VirtQueue::VirtRing< struct vring_used_elem >::write(), and VirtQueue::VirtRing< struct vring_used_elem >::writeHeader().

template<>

vring_used_elem htov_legacy ( vring_used_elem  v )

inline

Definition at line 89 of file base.hh.

References htov_legacy(), vring_used_elem::id, vring_used_elem::len, and ArmISA::v.

template<>

vring_desc htov_legacy ( vring_desc  v )

inline

Definition at line 105 of file base.hh.

References vring_desc::addr, vring_desc::flags, htov_legacy(), vring_desc::len, vring_desc::next, and ArmISA::v.

template<typename T >

T vtoh_legacy ( T  v )

inline

Convert legacy VirtIO endianness to host endianness.

Definition at line 70 of file base.hh.

References BigEndianGuest::gtoh().

Referenced by VirtQueue::VirtRing< struct vring_used_elem >::read(), VirtQueue::VirtRing< struct vring_used_elem >::readHeader(), VirtDescriptor::update(), and vtoh_legacy().

template<>

vring_used_elem vtoh_legacy ( vring_used_elem  v )

inline

Definition at line 82 of file base.hh.

References vring_used_elem::id, vring_used_elem::len, ArmISA::v, and vtoh_legacy().

template<>

vring_desc vtoh_legacy ( vring_desc  v )

inline

Definition at line 96 of file base.hh.

References vring_desc::addr, vring_desc::flags, vring_desc::len, vring_desc::next, ArmISA::v, and vtoh_legacy().