internal static void ParseMpTables()
{
UIntPtr mpFloat = GetMpFloatBase();
if (mpFloat == UIntPtr.Zero)
{
DebugStub.Print("MP Floating Pointer Structure not found.\n");
return;
}
mpFloatRegion =
IoMemory.MapPhysicalMemory(mpFloat, new UIntPtr(16), true, false);
FloatingPointer = MpFloatingPointer.Parse(mpFloatRegion);
if (FloatingPointer == null)
{
DebugStub.Print("Failed to parse MP Floating Pointer " +
"Structure.\n");
return;
}
if (FloatingPointer.MpConfTablePresent)
{
mpConfTableRegion = IoMemory.MapPhysicalMemory(
new UIntPtr(FloatingPointer.ConfTableBase),
new UIntPtr(0x2c), true, false);
DebugStub.Print("Found MP Conf Table\n");
ConfTable = MpConfTable.Parse(mpConfTableRegion);
if (ConfTable == null)
{
DebugStub.Print("Failed to parse MP Configuration table.\n");
}
IoMemory mpResourceRegion =
IoMemory.MapPhysicalMemory(
new UIntPtr(FloatingPointer.ConfTableBase + 0x2c),
new UIntPtr(ConfTable.BaseTableLength - 0x2c),
true, false);
DebugStub.Print("Parsing MP Conf Table Resources\n");
MpResources.Parse(mpResourceRegion,
ConfTable.BaseTableLength - 0x2c,
ConfTable.EntryCount);
}
else
{
DebugStub.Print("MP Configuration table not present.\n");
DebugStub.Print("MP Floating Pointer features: " +
"{0:x8} {1:x8} {2:x8} {3:x8} {4:x8}\n",
__arglist(
FloatingPointer.Feature[0],
FloatingPointer.Feature[1],
FloatingPointer.Feature[2],
FloatingPointer.Feature[3],
FloatingPointer.Feature[4]));
}
}
internal static MpConfTable Parse(IoMemory region)
{
if (region.Read32(0) != Signature)
{
return(null);
}
int length = region.Read16(4);
DebugStub.Print("MP Conf Table length {0}\n", __arglist(length));
#if NOTYET
byte checksum = 0;
for (int i = 0; i < length; i++)
{
checksum += region.Read8(i);
}
if (checksum != 0)
{
return(null);
}
#endif
MpConfTable confTable = new MpConfTable();
confTable.BaseTableLength = region.Read16(4);
confTable.Revision = region.Read8(7);
confTable.OemTableBase = region.Read32(0x1c);
confTable.OemTableSize = region.Read16(0x20);
confTable.EntryCount = region.Read16(0x22);
confTable.LocalApicBase = region.Read32(0x24);
confTable.ExtendedTableLength = region.Read16(0x28);
confTable.ExtendedTableChecksum = region.Read8(0x2a);
confTable.OemId = region.ReadAsciiZeroString(8, 8);
confTable.ProductId = region.ReadAsciiZeroString(0x10, 0x0c);
return(confTable);
}