diff options
| author | Amlal El Mahrouss <amlal@nekernel.org> | 2025-05-29 10:51:53 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-05-29 10:51:53 +0200 |
| commit | 5c0bb7ee7b1b0fee02cc179fb21f4c57a61d6c2d (patch) | |
| tree | cb17577bcdc9714c97a84ce417a075117097f146 /dev/kernel/HALKit/AMD64/Paging.h | |
| parent | d608230b1350b064ceb01e6572519b108f6139b0 (diff) | |
| parent | 3167f59dbb401d6a79b1524537e04218baf49ee3 (diff) | |
Merge pull request #32 from nekernel-org/dev
0.0.2e3
Diffstat (limited to 'dev/kernel/HALKit/AMD64/Paging.h')
| -rw-r--r-- | dev/kernel/HALKit/AMD64/Paging.h | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/dev/kernel/HALKit/AMD64/Paging.h b/dev/kernel/HALKit/AMD64/Paging.h index cfba232c..079acde4 100644 --- a/dev/kernel/HALKit/AMD64/Paging.h +++ b/dev/kernel/HALKit/AMD64/Paging.h @@ -6,13 +6,15 @@ #pragma once +#ifdef __NE_AMD64__ + /** --------------------------------------------------- * THIS FILE CONTAINS CODE FOR X86_64 PAGING. ------------------------------------------------------- */ -#include <NewKit/Defines.h> +#include <NeKit/Defines.h> #ifndef kPageMax #define kPageMax (0x200) @@ -63,6 +65,27 @@ auto mm_free_bitmap(VoidPtr page_ptr) -> Bool; } // namespace Kernel::HAL namespace Kernel { -typedef VoidPtr PTE; -typedef VoidPtr PDE; +struct PTE { + UInt64 Present : 1; + UInt64 Wr : 1; + UInt64 User : 1; + UInt64 Pwt : 1; // Page-level Write-Through + UInt64 Pcd : 1; // Page-level Cache Disable + UInt64 Accessed : 1; + UInt64 Dirty : 1; + UInt64 Pat : 1; // Page Attribute Table (or PS for PDE) + UInt64 Global : 1; + UInt64 Ignored1 : 3; // Available to software + UInt64 PhysicalAddress : 40; // Physical page frame address (bits 12–51) + UInt64 Ignored2 : 7; // More software bits / reserved + UInt64 ProtectionKey : 4; // Optional (if PKU enabled) + UInt64 Reserved : 1; // Usually reserved + UInt64 Nx : 1; // No Execute +}; + +struct PDE { + ATTRIBUTE(aligned(kib_cast(4))) PTE fPTE[512]; +}; } // namespace Kernel + +#endif // __NE_AMD64__
\ No newline at end of file |