49 lines
1.7 KiB
C#
49 lines
1.7 KiB
C#
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/*******************************************************************/
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/* WARNING */
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/* This file should be identical in the Bartok and Singularity */
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/* depots. Master copy resides in Bartok Depot. Changes should be */
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/* made to Bartok Depot and propagated to Singularity Depot. */
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/*******************************************************************/
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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namespace System.GCs {
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using System.Runtime.CompilerServices;
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using System.Threading;
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[RequiredByBartok]
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internal class CentralPT: PageTable {
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[PreInitRefCounts]
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[NoStackLinkCheck]
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new internal static unsafe void Initialize() {
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SetProcessTag((uint) Thread.GetCurrentProcessIndex() << 16);
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pageTableCount = new UIntPtr(1U) << (int) (31 - PageBits);
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UIntPtr pageTableSize = pageTableCount * sizeof(uint);
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halPageDescriptor = (uint *)
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MemoryManager.AllocateMemory(pageTableSize);
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UIntPtr startPage = Page((UIntPtr) halPageDescriptor);
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UIntPtr pageCount = PageCount(PagePad(pageTableCount));
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SetType(startPage, pageCount, PageType.System);
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SetProcess(UIntPtr.Zero, pageTableCount);
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}
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[Inline]
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internal static unsafe uint PageTableEntryImpl(UIntPtr page)
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{
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return *(halPageDescriptor + page);
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}
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[Inline]
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internal static unsafe void SetPageTableEntryImpl(UIntPtr page, uint value)
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{
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*(halPageDescriptor + page) = value;
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}
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}
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}
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