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This ACPI table contains a flag that is used for indicating pre-boot DMA protection on AMD systems.
11 lines
338 B
Markdown
11 lines
338 B
Markdown
# DMA Protection
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## Introduction
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This plugin checks if Pre-boot DMA remapping is available and enabled from the [ACPI IVRS](http://support.amd.com/TechDocs/48882_IOMMU.pdf) table.
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The result will be stored in an security attribute for HSI.
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## External Interface Access
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This plugin requires read access to `/sys/firmware/acpi/tables`.
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