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Diffstat (limited to 'src/kernel/NeKit/PageMgr.h')
| -rw-r--r-- | src/kernel/NeKit/PageMgr.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/kernel/NeKit/PageMgr.h b/src/kernel/NeKit/PageMgr.h new file mode 100644 index 00000000..6cdd5a5c --- /dev/null +++ b/src/kernel/NeKit/PageMgr.h @@ -0,0 +1,76 @@ +// a way to create and find our pages. +// I'm thinking about a separate way of getting a paged area. + +/* ======================================== + + Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license. + +======================================== */ + +#pragma once + +#include <NeKit/Defines.h> +#include <NeKit/Ref.h> + +namespace Kernel { +class PageMgr; + +class PTEWrapper final { + public: + explicit PTEWrapper(Boolean Rw = false, Boolean User = false, Boolean ExecDisable = false, + UIntPtr Address = 0); + + ~PTEWrapper(); + + PTEWrapper& operator=(const PTEWrapper&) = default; + PTEWrapper(const PTEWrapper&) = default; + + public: + UIntPtr VirtualAddress(); + + Void NoExecute(const bool enable = false); + Bool NoExecute(); + + operator bool() { return fVirtAddr; } + + bool Reclaim(); + bool Shareable(); + bool Present(); + bool Access(); + + private: + Boolean fRw; + Boolean fUser; + Boolean fExecDisable; + UIntPtr fVirtAddr; + Boolean fCache; + Boolean fShareable; + Boolean fWt; + Boolean fPresent; + Boolean fAccessed; + + private: + friend class PageMgr; + friend class Pmm; +}; + +struct PageMgr final { + public: + PageMgr() = default; + ~PageMgr() = default; + + PageMgr& operator=(const PageMgr&) = default; + PageMgr(const PageMgr&) = default; + + public: + PTEWrapper Request(Boolean Rw, Boolean User, Boolean ExecDisable, SizeT Sz, SizeT Pad); + bool Free(Ref<PTEWrapper>& wrapper); + + private: + void FlushTLB(); + + private: + friend PTEWrapper; + friend class Pmm; +}; +} // namespace Kernel |
