mirror of
https://github.com/skyline-emu/skyline.git
synced 2024-06-14 06:58:45 +02:00
39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
// SPDX-License-Identifier: MPL-2.0
|
|
// Copyright © 2023 Skyline Team and Contributors (https://github.com/skyline-emu/)
|
|
|
|
#pragma once
|
|
|
|
#include <kernel/memory.h>
|
|
#include "KObject.h"
|
|
|
|
namespace skyline::kernel::type {
|
|
/**
|
|
* @brief The base kernel shared memory object that other memory classes derieve from
|
|
*/
|
|
class KMemory : public KObject {
|
|
private:
|
|
int fileDescriptor; //!< A file descriptor to the underlying shared memory
|
|
|
|
public:
|
|
KMemory(const DeviceState &state, KType objectType, size_t size);
|
|
|
|
/**
|
|
* @return A span representing the memory object on the guest
|
|
*/
|
|
span<u8> guest;
|
|
span<u8> host; //!< We also keep a host mirror of the underlying shared memory for host access, it is persistently mapped and should be used by anything accessing the memory on the host
|
|
|
|
/**
|
|
* @note 'ptr' needs to be in guest-reserved address space
|
|
*/
|
|
virtual u8 *Map(span<u8> map, memory::Permission permission);
|
|
|
|
/**
|
|
* @note 'ptr' needs to be in guest-reserved address space
|
|
*/
|
|
virtual void Unmap(span<u8> map);
|
|
|
|
virtual ~KMemory();
|
|
};
|
|
}
|