CONFIG_DMAR is not available for thedefaultarchitecture x86.
Result is shown for architecture ia64
Support for DMA Remapping Devices (EXPERIMENTAL)
modulename: dmar.ko
and/orpci-dma.ko
configname: CONFIG_DMAR
IA-64 Linux Kernel Configuration
└─>Bus options (PCI, PCMCIA)
└─>Support for DMA Remapping Devices (EXPERIMENTAL)
In linux kernel since version 2.6.24 (release Date: 2008-01-24)
DMA remapping (DMAR) devices support enables independent address
translations for Direct Memory Access (DMA) from devices.
These DMA remapping devices are reported via ACPI tables
and include PCI device scope covered by these DMA
remapping devices.
translations for Direct Memory Access (DMA) from devices.
These DMA remapping devices are reported via ACPI tables
and include PCI device scope covered by these DMA
remapping devices.