mirror of
https://github.com/skyline-emu/skyline.git
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a54f5ff578
This commit introduces a new memory model that supports true shared memory with separate permissions for remote and local processes, implements svcQueryMemory and completes svcGetInfo further, adds IPC support with the IpcRequest and IpcResponse classes.
51 lines
2.0 KiB
C++
51 lines
2.0 KiB
C++
#pragma once
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#include "../../memory.h"
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#include "KObject.h"
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namespace lightSwitch::kernel::type {
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class KPrivateMemory {
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private:
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const device_state &state; //!< The state of the device
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public:
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u64 address; //!< The address of the allocated memory
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size_t size; //!< The size of the allocated memory
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u16 ipc_ref_count{}; //!< The amount of reference to this memory for IPC
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u16 device_ref_count{}; //!< The amount of reference to this memory for IPC
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Memory::Permission permission; //!< The amount of reference to this memory for IPC
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const Memory::Type type; //!< The type of this memory allocation
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const pid_t owner_pid; //!< The PID of the owner process
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/**
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* Constructor of a private memory object
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* @param dst_address The address to map to (If NULL then an arbitrary address is picked)
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* @param src_address The address to map from (If NULL then no copy is performed)
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* @param size The size of the allocation
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* @param permission The permissions for the memory
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* @param owner_pid The PID of the owner process
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*/
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KPrivateMemory(const device_state &state, u64 dst_address, u64 src_address, size_t size, Memory::Permission permission, const Memory::Type type, const pid_t owner_pid);
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/**
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* Remap a chunk of memory as to change the size occupied by it
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* @param address The address of the mapped memory
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* @param old_size The current size of the memory
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* @param size The new size of the memory
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*/
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void Resize(size_t new_size);
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/**
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* Updates the permissions of a chunk of mapped memory
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* @param perms The new permissions to be set for the memory
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*/
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void UpdatePermission(Memory::Permission new_perms);
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/**
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* @param pid The PID of the requesting process
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* @return A Memory::MemoryInfo struct based on attributes of the memory
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*/
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Memory::MemoryInfo GetInfo();
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};
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}
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