default or selected kernelversion does not have config value CONFIG_IOMMU_STRESS.
Result is shown for kernelversion 6.7-rc3
Enable IOMMU stress-test mode
configname: CONFIG_IOMMU_STRESS
Linux Kernel Configuration
└─>Kernel hacking
└─>Enable IOMMU stress-test mode
In linux kernel since version 2.6.31 (release Date: 2009-09-09)
This option disables various optimizations in IOMMU related
code to do real stress testing of the IOMMU code. This option
will cause a performance drop and should only be enabled for
testing.
code to do real stress testing of the IOMMU code. This option
will cause a performance drop and should only be enabled for
testing.