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VMM: Do not map recursively

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apio 2022-10-12 14:34:12 +02:00
parent 8daffa876c
commit 15f340dbbe
1 changed files with 2 additions and 4 deletions
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6
kernel/src/memory/VMM.cpp
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@ -222,7 +222,6 @@ namespace Paging
{
unmap(virtualAddress);
PDE.LargerPages = false;
PML4->entries[PDP_i] = PDE;
PDP = (PageTable*)PMM::request_page();
ASSERT(!(PMM_DID_FAIL(PDP)));
memset(PDP, 0, PAGE_SIZE);
@ -230,7 +229,7 @@ namespace Paging
PDE.Present = true;
PDE.ReadWrite = true;
if (flags & User) PDE.UserSuper = true;
return map(virtualAddress, physicalAddress, flags);
PML4->entries[PDP_i] = PDE;
}
PDP = (PageTable*)((uint64_t)PDE.Address << 12);
}
@ -259,7 +258,6 @@ namespace Paging
{
unmap(virtualAddress);
PDE.LargerPages = false;
PDP->entries[PD_i] = PDE;
PD = (PageTable*)PMM::request_page();
ASSERT(!(PMM_DID_FAIL(PD)));
memset(PD, 0, PAGE_SIZE);
@ -267,7 +265,7 @@ namespace Paging
PDE.Present = true;
PDE.ReadWrite = true;
if (flags & User) PDE.UserSuper = true;
return map(virtualAddress, physicalAddress, flags);
PDP->entries[PD_i] = PDE;
}
PD = (PageTable*)((uint64_t)PDE.Address << 12);
}