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Decouple pool initialization and validation from allocation logic
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This commit is contained in:
Aiken Harris
2026-03-18 20:31:06 +01:00
parent 876923e107
commit afb20a1796
10 changed files with 250 additions and 169 deletions
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1
xtoskrnl/includes/mm.hh
View File

@@ -22,5 +22,6 @@
#include <mm/mmgr.hh>
#include <mm/pfault.hh>
#include <mm/pfn.hh>
#include <mm/pool.hh>
#endif /* __XTOSKRNL_MM_HH */

24
xtoskrnl/includes/mm/alloc.hh
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@@ -2,7 +2,7 @@
* PROJECT: ExectOS
* COPYRIGHT: See COPYING.md in the top level directory
* FILE: xtoskrnl/includes/mm/alloc.hh
* DESCRIPTION: Memory manager pool allocation
* DESCRIPTION: Memory Manager pool allocator
* DEVELOPERS: Aiken Harris <harraiken91@gmail.com>
*/
@@ -10,18 +10,14 @@
#define __XTOSKRNL_MM_ALLOC_HH
#include <xtos.hh>
#include <mm/pool.hh>
/* Memory Manager */
namespace MM
{
class Allocator
class Allocator final : private Pool
{
private:
STATIC PFN_NUMBER NonPagedPoolFrameEnd;
STATIC PFN_NUMBER NonPagedPoolFrameStart;
STATIC LIST_ENTRY NonPagedPoolFreeList[MM_MAX_FREE_PAGE_LIST_HEADS];
public:
STATIC XTAPI XTSTATUS AllocatePages(IN MMPOOL_TYPE PoolType,
IN SIZE_T Bytes,
@@ -34,23 +30,21 @@ namespace MM
OUT PVOID *Memory,
IN ULONG Tag);
STATIC XTAPI XTSTATUS FreePages(IN PVOID VirtualAddress);
STATIC XTAPI XTSTATUS FreePages(IN PVOID VirtualAddress,
OUT PPFN_NUMBER PagesFreed);
STATIC XTAPI XTSTATUS FreePool(IN PVOID VirtualAddress);
STATIC XTAPI XTSTATUS FreePool(IN PVOID VirtualAddress,
IN ULONG Tag);
STATIC XTAPI VOID InitializeNonPagedPool(VOID);
STATIC XTAPI VOID InitializePagedPool(VOID);
private:
STATIC XTAPI XTSTATUS AllocateNonPagedPoolPages(IN PFN_COUNT Pages,
OUT PVOID *Memory);
STATIC XTAPI XTSTATUS AllocatePagedPoolPages(IN PFN_COUNT Pages,
OUT PVOID *Memory);
STATIC XTAPI XTSTATUS FreeNonPagedPoolPages(IN PVOID VirtualAddress);
STATIC XTAPI XTSTATUS FreePagedPoolPages(IN PVOID VirtualAddress);
STATIC XTAPI VOID MapNonPagedPool(VOID);
STATIC XTINLINE VOID VerifyRunLevel(IN MMPOOL_TYPE PoolType,
IN SIZE_T Bytes,
IN PVOID Entry);
STATIC XTAPI XTSTATUS FreeNonPagedPoolPages(IN PVOID VirtualAddress,
OUT PPFN_NUMBER PagesFreed);
STATIC XTAPI XTSTATUS FreePagedPoolPages(IN PVOID VirtualAddress,
OUT PPFN_NUMBER PagesFreed);
};
}

39
xtoskrnl/includes/mm/pool.hh Normal file
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@@ -0,0 +1,39 @@
/**
* PROJECT: ExectOS
* COPYRIGHT: See COPYING.md in the top level directory
* FILE: xtoskrnl/includes/mm/pool.hh
* DESCRIPTION: Memory Manager pool manager
* DEVELOPERS: Aiken Harris <harraiken91@gmail.com>
*/
#ifndef __XTOSKRNL_MM_POOL_HH
#define __XTOSKRNL_MM_POOL_HH
#include <xtos.hh>
/* Memory Manager */
namespace MM
{
class Pool
{
protected:
STATIC PFN_NUMBER NonPagedPoolFrameEnd;
STATIC PFN_NUMBER NonPagedPoolFrameStart;
STATIC LIST_ENTRY NonPagedPoolFreeList[MM_MAX_FREE_PAGE_LIST_HEADS];
public:
STATIC XTAPI VOID InitializeNonPagedPool(VOID);
STATIC XTAPI VOID InitializePagedPool(VOID);
protected:
STATIC XTAPI VOID VerifyRunLevel(IN MMPOOL_TYPE PoolType,
IN SIZE_T Bytes,
IN PVOID Entry);
private:
STATIC XTAPI VOID MapNonPagedPool(VOID);
};
}
#endif /* __XTOSKRNL_MM_POOL_HH */