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https://github.com/SerenityOS/serenity
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e8f543c390
This patch ports MemoryManager to RegionTree as well. The biggest difference between this and the userspace code is that kernel regions are owned by extant OwnPtr<Region> objects spread around the kernel, while userspace regions are owned by the AddressSpace itself. For kernelspace, there are a couple of situations where we need to make large VM reservations that never get backed by regular VMObjects (for example the kernel image reservation, or the big kmalloc range.) Since we can't make a VM reservation without a Region object anymore, this patch adds a way to create unbacked Region objects that can be used for this exact purpose. They have no internal VMObject.)
101 lines
2 KiB
C++
101 lines
2 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/DistinctNumeric.h>
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#include <Kernel/API/POSIX/sys/types.h>
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namespace Kernel {
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class BlockDevice;
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class CharacterDevice;
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class Coredump;
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class Custody;
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class DevTmpFSDeviceInode;
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class DevTmpFSDirectoryInode;
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class DevTmpFSInode;
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class DevTmpFSPtsDirectoryInode;
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class DevTmpFSRootDirectoryInode;
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class Device;
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class DiskCache;
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class DoubleBuffer;
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class File;
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class OpenFileDescription;
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class FileSystem;
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class FutexQueue;
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class IPv4Socket;
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class Inode;
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class InodeIdentifier;
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class InodeWatcher;
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class KBuffer;
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class LocalSocket;
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class Mutex;
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class MasterPTY;
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class Mount;
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class PerformanceEventBuffer;
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class ProcFS;
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class ProcFSDirectoryInode;
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class ProcFSExposedComponent;
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class ProcFSExposedDirectory;
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class ProcFSInode;
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class ProcFSProcessInformation;
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class ProcFSRootDirectory;
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class ProcFSSystemBoolean;
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class ProcFSSystemDirectory;
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class Process;
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class ProcessGroup;
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class RecursiveSpinlock;
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class Scheduler;
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class Socket;
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class SysFS;
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class SysFSDirectory;
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class SysFSBusDirectory;
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class SysFSDirectoryInode;
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class SysFSInode;
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class TCPSocket;
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class TTY;
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class Thread;
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class ThreadTracer;
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class UDPSocket;
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class UserOrKernelBuffer;
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class VirtualFileSystem;
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class WaitQueue;
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class WorkQueue;
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namespace Memory {
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class AddressSpace;
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class AnonymousVMObject;
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class InodeVMObject;
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class MappedROM;
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class MemoryManager;
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class PageDirectory;
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class PhysicalPage;
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class PhysicalRegion;
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class PrivateInodeVMObject;
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class Region;
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class SharedInodeVMObject;
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class VMObject;
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class VirtualRange;
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}
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class Spinlock;
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template<typename LockType>
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class SpinlockLocker;
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struct InodeMetadata;
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struct TrapFrame;
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TYPEDEF_DISTINCT_ORDERED_ID(pid_t, ProcessID);
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TYPEDEF_DISTINCT_ORDERED_ID(pid_t, ThreadID);
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TYPEDEF_DISTINCT_ORDERED_ID(pid_t, SessionID);
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TYPEDEF_DISTINCT_ORDERED_ID(pid_t, ProcessGroupID);
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TYPEDEF_DISTINCT_ORDERED_ID(uid_t, UserID);
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TYPEDEF_DISTINCT_ORDERED_ID(gid_t, GroupID);
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}
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