32 lines
714 B
C
32 lines
714 B
C
/*
|
|
* Copyright (c) 2026, Chloe M.
|
|
* Provided under the BSD-3 clause.
|
|
*
|
|
* Description: Virtual memory management
|
|
* Author: Chloe M.
|
|
*/
|
|
|
|
#ifndef _MM_VM_H_
|
|
#define _MM_VM_H_ 1
|
|
|
|
#include <ke/bpal.h>
|
|
|
|
/*
|
|
* Virtual memory allocation region. This is outside the
|
|
* higher half direct map and thus cannot be converted with
|
|
* PMA_TO_VMA() / VMA_TO_PMA()
|
|
*/
|
|
#define VALLOC_BASE 0xFFFF804000000000
|
|
|
|
/*
|
|
* Used to convert physical addresses to virtual addresses
|
|
* and vice versa only when they are within the higher half
|
|
* direct map.
|
|
*/
|
|
#define PMA_TO_VMA(PMA) \
|
|
PTR_OFFSET((VOID *)PMA, KeBpalLoadBase())
|
|
#define VMA_TO_PMA(VMA) \
|
|
(UPTR)PTR_NOFFSET(VMA, KeBpalLoadBase())
|
|
|
|
#endif /* !_MM_VM_H_ */
|