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Refactor memory layout structure
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This commit is contained in:
Aiken Harris
2026-01-29 22:10:26 +01:00
parent 72f34c8286
commit 58669d3074
10 changed files with 67 additions and 47 deletions
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24
xtoskrnl/mm/pfn.cc
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@@ -415,7 +415,7 @@ MM::Pfn::GetPfnEntry(IN PFN_NUMBER Pfn)
MemoryLayout = MM::Manager::GetMemoryLayout();
/* Calculate the address of the PFN entry by indexing into the PFN database array and return it */
return &((PMMPFN)MemoryLayout->PfnDatabaseAddress)[Pfn];
return &((PMMPFN)MemoryLayout->PfnDatabase)[Pfn];
}
/**
@@ -531,7 +531,7 @@ MM::Pfn::LinkFreePage(IN PFN_NUMBER PageFrameIndex)
/* Link with the previous last page */
MM::Paging::SetPte(&ColoredPfn->OriginalPte, PageFrameIndex);
PfnEntry->u4.PteFrame = ColoredPfn - (PMMPFN)MemoryLayout->PfnDatabaseAddress;
PfnEntry->u4.PteFrame = ColoredPfn - (PMMPFN)MemoryLayout->PfnDatabase;
}
/* Set the page as the new tail of the colored list */
@@ -570,7 +570,7 @@ MM::Pfn::LinkPage(IN PMMPFNLIST ListHead,
PMMMEMORY_LAYOUT MemoryLayout = MM::Manager::GetMemoryLayout();
/* Get the PFN database entry for the target page */
PageFrame = &((PMMPFN)MemoryLayout->PfnDatabaseAddress)[PageFrameIndex];
PageFrame = &((PMMPFN)MemoryLayout->PfnDatabase)[PageFrameIndex];
/* Get the list name */
ListName = ListHead->ListName;
@@ -598,7 +598,7 @@ MM::Pfn::LinkPage(IN PMMPFNLIST ListHead,
if(ListHead->Blink != MAXULONG_PTR)
{
/* Update the previous tail to point to this page */
(&((PMMPFN)MemoryLayout->PfnDatabaseAddress)[ListHead->Blink])->u1.Flink = PageFrameIndex;
(&((PMMPFN)MemoryLayout->PfnDatabase)[ListHead->Blink])->u1.Flink = PageFrameIndex;
}
else
{
@@ -661,7 +661,7 @@ MM::Pfn::LinkPage(IN PMMPFNLIST ListHead,
if(ListHead->Flink != MAXULONG_PTR)
{
/* Fix up the backward link of the old head */
(&((PMMPFN)MemoryLayout->PfnDatabaseAddress)[ListHead->Flink])->u2.Blink = PageFrameIndex;
(&((PMMPFN)MemoryLayout->PfnDatabase)[ListHead->Flink])->u2.Blink = PageFrameIndex;
}
else
{
@@ -675,7 +675,7 @@ MM::Pfn::LinkPage(IN PMMPFNLIST ListHead,
if(ListHead->Blink != MAXULONG_PTR)
{
/* Link the current tail to the new page */
(&((PMMPFN)MemoryLayout->PfnDatabaseAddress)[ListHead->Blink])->u1.Flink = PageFrameIndex;
(&((PMMPFN)MemoryLayout->PfnDatabase)[ListHead->Blink])->u1.Flink = PageFrameIndex;
}
else
{
@@ -714,7 +714,7 @@ MM::Pfn::LinkPage(IN PMMPFNLIST ListHead,
if(ColorHead->Flink != MAXULONG_PTR)
{
/* Fix up the PTE frame of the previous entry */
(&((PMMPFN)MemoryLayout->PfnDatabaseAddress)[ColorHead->Flink])->u4.PteFrame = PageFrameIndex;
(&((PMMPFN)MemoryLayout->PfnDatabase)[ColorHead->Flink])->u4.PteFrame = PageFrameIndex;
}
else
{
@@ -817,7 +817,7 @@ MM::Pfn::LinkPfnToPte(IN PFN_NUMBER PageFrameIndex,
MemoryLayout = MM::Manager::GetMemoryLayout();
/* Point the PFN to its PTE */
Pfn = &((PMMPFN)MemoryLayout->PfnDatabaseAddress)[PageFrameIndex];
Pfn = &((PMMPFN)MemoryLayout->PfnDatabase)[PageFrameIndex];
Pfn->PteAddress = PointerPte;
/* Check if the page is already mapped and in use */
@@ -860,7 +860,7 @@ MM::Pfn::LinkPfnToPte(IN PFN_NUMBER PageFrameIndex,
Pfn->u4.PteFrame = PageFrameIndex;
/* Pin the page table in memory by incrementing its PFN share count */
Pfn = &((PMMPFN)MemoryLayout->PfnDatabaseAddress)[PageFrameIndex];
Pfn = &((PMMPFN)MemoryLayout->PfnDatabase)[PageFrameIndex];
Pfn->u2.ShareCount++;
}
@@ -887,7 +887,7 @@ MM::Pfn::LinkStandbyPage(IN PFN_NUMBER PageFrameIndex)
MemoryLayout = MM::Manager::GetMemoryLayout();
/* Get the PFN database entry for the target page */
CurrentPageFrame = &((PMMPFN)MemoryLayout->PfnDatabaseAddress)[PageFrameIndex];
CurrentPageFrame = &((PMMPFN)MemoryLayout->PfnDatabase)[PageFrameIndex];
/* Check if the page is part of a ROM image */
if(CurrentPageFrame->u3.e1.Rom == 1)
@@ -899,7 +899,7 @@ MM::Pfn::LinkStandbyPage(IN PFN_NUMBER PageFrameIndex)
if(RomPagesList.Blink != (ULONG_PTR)-1)
{
/* Update the old tail to point to the new page */
AdjacentPageFrame = &((PMMPFN)MemoryLayout->PfnDatabaseAddress)[RomPagesList.Blink];
AdjacentPageFrame = &((PMMPFN)MemoryLayout->PfnDatabase)[RomPagesList.Blink];
AdjacentPageFrame->u1.Flink = PageFrameIndex;
}
else
@@ -933,7 +933,7 @@ MM::Pfn::LinkStandbyPage(IN PFN_NUMBER PageFrameIndex)
if(Flink != MAXULONG_PTR)
{
/* Update the old head to point to the new page */
AdjacentPageFrame = &((PMMPFN)MemoryLayout->PfnDatabaseAddress)[Flink];
AdjacentPageFrame = &((PMMPFN)MemoryLayout->PfnDatabase)[Flink];
AdjacentPageFrame->u2.Blink = PageFrameIndex;
}
else