rex::IPhysicalMemory Class Reference

#include <rex/guest.h>

Public Member Functions
virtual Result< void >	CopyFromPhysical (u32 address, std::span< std::byte > out)=0
virtual Result< void >	CopyToPhysical (u32 address, std::span< const std::byte > data)=0
virtual Result< std::span< const std::byte > >	GetReadOnlyPhysicalSpan (PhysicalRange range)=0
virtual Result< std::span< std::byte > >	GetWritablePhysicalSpan (PhysicalRange range)=0
virtual Result< void >	StoreRelease32 (u32 address, u32 value)=0
virtual Result< u32 >	LoadAcquire32 (u32 address)=0

Detailed Description

Guest physical memory. Each call fails only for a range outside the 512 MiB of physical memory. It does not check mapping or protection.

Member Function Documentation

CopyFromPhysical()

virtual Result< void > rex::IPhysicalMemory::CopyFromPhysical ( u32 address, std::span< std::byte > out )

nodiscardpure virtual

Copies guest physical memory into a buffer.

Parameters

out	The destination, sized to the length.

Returns

Ok, or an error when the range is outside physical memory.

CopyToPhysical()

virtual Result< void > rex::IPhysicalMemory::CopyToPhysical ( u32 address, std::span< const std::byte > data )

nodiscardpure virtual

Copies a buffer into guest physical memory and notifies the listeners of watched pages.

Parameters

data	The bytes to copy.

Returns

Ok, or an error when the range is outside physical memory.

GetReadOnlyPhysicalSpan()

virtual Result< std::span< const std::byte > > rex::IPhysicalMemory::GetReadOnlyPhysicalSpan ( PhysicalRange range )

nodiscardpure virtual

Returns a read only view of guest physical memory, or an error when the range is outside it.

GetWritablePhysicalSpan()

virtual Result< std::span< std::byte > > rex::IPhysicalMemory::GetWritablePhysicalSpan ( PhysicalRange range )

nodiscardpure virtual

Returns a writable view of guest physical memory, or an error when the range is outside it. Writes through it do not notify listeners.

LoadAcquire32()

virtual Result< u32 > rex::IPhysicalMemory::LoadAcquire32 ( u32 address )

nodiscardpure virtual

Reads a big endian u32 with acquire ordering.

Parameters

address

The 4 byte aligned address.

Returns

The value, or an error when the address is outside physical memory.

StoreRelease32()

virtual Result< void > rex::IPhysicalMemory::StoreRelease32 ( u32 address, u32 value )

nodiscardpure virtual

Writes a big endian u32 with release ordering, for GPU fences.

Parameters

address

The 4 byte aligned address.

Returns

Ok, or an error when the address is outside physical memory.

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The documentation for this class was generated from the following file:

• rex/guest.h