| Kconfig (4f2c0a4acffbec01079c28f839422e64ddeff004) | Kconfig (a6a5006dad572a53b5df3f47e1471d207ae9ba49) |
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| 1# SPDX-License-Identifier: GPL-2.0-only 2# Intel IOMMU support 3config DMAR_TABLE 4 bool 5 6config DMAR_PERF 7 bool 8 --- 82 unchanged lines hidden (view full) --- 91 Selecting this option will enable by default the scalable mode if 92 hardware presents the capability. The scalable mode is defined in 93 VT-d 3.0. The scalable mode capability could be checked by reading 94 /sys/devices/virtual/iommu/dmar*/intel-iommu/ecap. If this option 95 is not selected, scalable mode support could also be enabled by 96 passing intel_iommu=sm_on to the kernel. If not sure, please use 97 the default value. 98 | 1# SPDX-License-Identifier: GPL-2.0-only 2# Intel IOMMU support 3config DMAR_TABLE 4 bool 5 6config DMAR_PERF 7 bool 8 --- 82 unchanged lines hidden (view full) --- 91 Selecting this option will enable by default the scalable mode if 92 hardware presents the capability. The scalable mode is defined in 93 VT-d 3.0. The scalable mode capability could be checked by reading 94 /sys/devices/virtual/iommu/dmar*/intel-iommu/ecap. If this option 95 is not selected, scalable mode support could also be enabled by 96 passing intel_iommu=sm_on to the kernel. If not sure, please use 97 the default value. 98 |
| 99config INTEL_IOMMU_PERF_EVENTS 100 def_bool y 101 bool "Intel IOMMU performance events" 102 depends on INTEL_IOMMU && PERF_EVENTS 103 help 104 Selecting this option will enable the performance monitoring 105 infrastructure in the Intel IOMMU. It collects information about 106 key events occurring during operation of the remapping hardware, 107 to aid performance tuning and debug. These are available on modern 108 processors which support Intel VT-d 4.0 and later. 109 |
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| 99endif # INTEL_IOMMU | 110endif # INTEL_IOMMU |