diff options
Diffstat (limited to 'Kernel/VM/MemoryManager.h')
| -rw-r--r-- | Kernel/VM/MemoryManager.h | 40 |
1 files changed, 27 insertions, 13 deletions
diff --git a/Kernel/VM/MemoryManager.h b/Kernel/VM/MemoryManager.h index 3615826fb3..b45cfcbf00 100644 --- a/Kernel/VM/MemoryManager.h +++ b/Kernel/VM/MemoryManager.h @@ -1,27 +1,28 @@ #pragma once -#include <AK/Types.h> #include "i386.h" +#include <AK/AKString.h> +#include <AK/Badge.h> #include <AK/Bitmap.h> #include <AK/ByteBuffer.h> -#include <AK/Retainable.h> +#include <AK/HashTable.h> #include <AK/RetainPtr.h> +#include <AK/Retainable.h> +#include <AK/Types.h> #include <AK/Vector.h> -#include <AK/HashTable.h> -#include <AK/AKString.h> -#include <AK/Badge.h> #include <AK/Weakable.h> +#include <Kernel/FileSystem/InodeIdentifier.h> #include <Kernel/LinearAddress.h> #include <Kernel/VM/PhysicalPage.h> #include <Kernel/VM/Region.h> #include <Kernel/VM/VMObject.h> -#include <Kernel/FileSystem/InodeIdentifier.h> -#define PAGE_ROUND_UP(x) ((((dword)(x)) + PAGE_SIZE-1) & (~(PAGE_SIZE-1))) +#define PAGE_ROUND_UP(x) ((((dword)(x)) + PAGE_SIZE - 1) & (~(PAGE_SIZE - 1))) class SynthFSInode; -enum class PageFaultResponse { +enum class PageFaultResponse +{ ShouldCrash, Continue, }; @@ -36,6 +37,7 @@ class MemoryManager { friend class VMObject; friend ByteBuffer procfs$mm(InodeIdentifier); friend ByteBuffer procfs$memstat(InodeIdentifier); + public: [[gnu::pure]] static MemoryManager& the(); @@ -54,7 +56,11 @@ public: bool validate_user_read(const Process&, LinearAddress) const; bool validate_user_write(const Process&, LinearAddress) const; - enum class ShouldZeroFill { No, Yes }; + enum class ShouldZeroFill + { + No, + Yes + }; RetainPtr<PhysicalPage> allocate_physical_page(ShouldZeroFill); RetainPtr<PhysicalPage> allocate_supervisor_physical_page(); @@ -106,7 +112,10 @@ private: PageDirectory& kernel_page_directory() { return *m_kernel_page_directory; } struct PageDirectoryEntry { - explicit PageDirectoryEntry(dword* pde) : m_pde(pde) { } + explicit PageDirectoryEntry(dword* pde) + : m_pde(pde) + { + } dword* page_table_base() { return reinterpret_cast<dword*>(raw() & 0xfffff000u); } void set_page_table_base(dword value) @@ -118,7 +127,8 @@ private: dword raw() const { return *m_pde; } dword* ptr() { return m_pde; } - enum Flags { + enum Flags + { Present = 1 << 0, ReadWrite = 1 << 1, UserSupervisor = 1 << 2, @@ -153,7 +163,10 @@ private: }; struct PageTableEntry { - explicit PageTableEntry(dword* pte) : m_pte(pte) { } + explicit PageTableEntry(dword* pte) + : m_pte(pte) + { + } dword* physical_page_base() { return reinterpret_cast<dword*>(raw() & 0xfffff000u); } void set_physical_page_base(dword value) @@ -165,7 +178,8 @@ private: dword raw() const { return *m_pte; } dword* ptr() { return m_pte; } - enum Flags { + enum Flags + { Present = 1 << 0, ReadWrite = 1 << 1, UserSupervisor = 1 << 2, |