title: Call NtQuerySystemInformation in kernel-space
body: <p>I want to take SystemBasicInformation, SystemPerformanceInformation, SystemFileCacheInformation in kernel-space(from my nonPnP driver). But I can't call NtQuerySystemInformation in kernel-space, because it needs the user-space ntdll.lib.
  Does anybody know the same NtQuerySystemInformation in kernel-space?</p>