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DMAR Table Audit

Copyright (C) Microsoft Corporation. All rights reserved. SPDX-License-Identifier: BSD-2-Clause-Patent



Shell based UEFI unit test based off of the UnitTestFrameworkPkg that test for:

  1. IOMMU status register shows IOMMU enabled
  2. All excluded regions are set as EfiReservedMemoryType(VTd)/EfiACPIMemoryNVS(IVRS)
  3. Bus mastering enabled (BME) is disabled on ExitBootServices. Because we can no longer write to file after ExitBootServices a variable is used to store the test state and the machine.

Note: this unit test requires a restart to finish its testing. If you plan to use this unit test in automation make sure to set up your startup.nsh script properly.