default or selected kernelversion does not have config value CONFIG_DMAR.
Result is shown for kernelversion 6.2.5
Support for DMA Remapping Devices
modulename: dmar.ko
and/orpci-dma.ko
configname: CONFIG_DMAR
Linux Kernel Configuration
└─>Device Drivers
└─>IOMMU Hardware Support
└─>Support for DMA Remapping Devices
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.