shadPS4/src/core/virtual_memory.h

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// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include "common/types.h"
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constexpr u64 SYSTEM_RESERVED = 0x800000000u;
constexpr u64 CODE_BASE_OFFSET = 0x100000000u;
constexpr u64 SYSTEM_MANAGED_MIN = 0x0000040000u;
constexpr u64 SYSTEM_MANAGED_MAX = 0x07FFFFBFFFu;
constexpr u64 USER_MIN = 0x1000000000u;
constexpr u64 USER_MAX = 0xFBFFFFFFFFu;
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namespace VirtualMemory {
enum class MemoryMode : u32 {
NoAccess = 0,
Read = 1,
Write = 2,
ReadWrite = 3,
Execute = 4,
ExecuteRead = 5,
ExecuteWrite = 6,
ExecuteReadWrite = 7,
};
u64 memory_alloc(u64 address, u64 size, MemoryMode mode);
u64 memory_alloc_aligned(u64 address, u64 size, MemoryMode mode, u64 alignment);
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bool memory_protect(u64 address, u64 size, MemoryMode mode, MemoryMode* old_mode);
bool memory_flush(u64 address, u64 size);
bool memory_patch(u64 vaddr, u64 value);
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inline bool containsExecuteMode(MemoryMode mode) {
switch (mode) {
case MemoryMode::Execute:
return true;
case MemoryMode::ExecuteRead:
return true;
case MemoryMode::ExecuteWrite:
return true;
case MemoryMode::ExecuteReadWrite:
return true;
default:
return false;
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}
}
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} // namespace VirtualMemory