82 lines
2.4 KiB
C#
82 lines
2.4 KiB
C#
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///////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: Resources.cs
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//
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using System;
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using System.Threading;
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using Microsoft.Singularity.Loader;
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namespace Microsoft.Singularity.Io
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{
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[CLSCompliant(false)]
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public class Resources
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{
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static public int GetWarmBootCount()
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{
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BootInfo bi = BootInfo.GetBootInfo();
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return (int)bi.BootCount;
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}
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public struct PnpBiosInfo
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{
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public IoMemory pnpRegion;
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public IoPort isaReadPort;
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public uint isaCsns;
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}
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static public PnpBiosInfo GetPnpBiosInfo()
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{
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BootInfo bi = BootInfo.GetBootInfo();
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PnpBiosInfo pbi = new PnpBiosInfo();
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if (bi.PnpNodesAddr32 != UIntPtr.Zero) {
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Tracing.Log(Tracing.Debug, "PnpBiosRegion {0:x8}..{1:x8}",
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bi.PnpNodesAddr32, bi.PnpNodesAddr32 + bi.PnpNodesSize32);
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pbi.pnpRegion = IoMemory.MapPhysicalMemory(
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bi.PnpNodesAddr32, bi.PnpNodesSize32, true, false);
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}
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pbi.isaReadPort = new IoPort((ushort)bi.IsaReadPort, 1, Access.Read);;
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pbi.isaCsns = bi.IsaCsns;
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return pbi;
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}
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static public uint GetPciNumberOfBuses()
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{
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BootInfo bi = BootInfo.GetBootInfo();
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return (uint)bi.PciBiosCX + 1;
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}
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static private unsafe FileImage GetLoadedFileImage(int image)
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{
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BootInfo bi = BootInfo.GetBootInfo();
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if (image < bi.FileImageTableEntries)
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{
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FileImage* fi = (FileImage*) bi.FileImageTableBase32; //.ToPointer();
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return *(fi + image);
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}
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return new FileImage(UIntPtr.Zero, 0);
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}
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static public IoMemory GetLoadedImageMemory(int image)
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{
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BootInfo bi = BootInfo.GetBootInfo();
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FileImage fileImage = GetLoadedFileImage(image);
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if (fileImage.Address != UIntPtr.Zero)
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{
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return IoMemory.MapPhysicalMemory(fileImage.Address, fileImage.Size,
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true, false);
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}
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return null;
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}
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}
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}
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