internal static UIntPtr KernelMapPhysicalMemory(PhysicalAddress physStart,
UIntPtr numBytes)
{
if (useAddressTranslation)
{
UIntPtr permaLoc = VMManager.TranslatePhysicalRange(physStart, numBytes);
if (permaLoc != UIntPtr.Zero)
{
// This location has a permanent mapping
return(permaLoc);
}
else
{
// This location must be mapped on the fly
return(VMManager.MapPhysicalMemory(KernelRangeWrapper,
Process.kernelProcess,
physStart, numBytes));
}
}
else
{
// identity map without paging
return(unchecked ((UIntPtr)physStart.Value));
}
}