projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 73fa0d10 AW |
2 | config VFIO_IOMMU_TYPE1 |
| 3 | tristate | |
| 4 | depends on VFIO | |
| 5 | default n | |
| 6 | ||
| 5ffd229c AK |
7 | config VFIO_IOMMU_SPAPR_TCE |
| 8 | tristate | |
| 9 | depends on VFIO && SPAPR_TCE_IOMMU | |
| d88423f7 | 10 | default VFIO |
| 5ffd229c | 11 | |
| 92d18a68 GS |
12 | config VFIO_SPAPR_EEH |
| 13 | tristate | |
| 14 | depends on EEH && VFIO_IOMMU_SPAPR_TCE | |
| d88423f7 | 15 | default VFIO |
| 92d18a68 | 16 | |
| 71be3423 AW |
17 | config VFIO_VIRQFD |
| 18 | tristate | |
| 19 | depends on VFIO && EVENTFD | |
| 20 | default n | |
| 21 | ||
| cba3345c AW |
22 | menuconfig VFIO |
| 23 | tristate "VFIO Non-Privileged userspace driver framework" | |
| 24 | depends on IOMMU_API | |
| cf3f98c7 | 25 | select VFIO_IOMMU_TYPE1 if (X86 || S390 || ARM || ARM64) |
| cba3345c AW |
26 | help |
| 27 | VFIO provides a framework for secure userspace device drivers. | |
| 28 | See Documentation/vfio.txt for more details. | |
| 29 | ||
| 30 | If you don't know what to do here, say N. | |
| 89e1f7d4 | 31 | |
| 03a76b60 AW |
32 | menuconfig VFIO_NOIOMMU |
| 33 | bool "VFIO No-IOMMU support" | |
| 34 | depends on VFIO | |
| 35 | help | |
| 36 | VFIO is built on the ability to isolate devices using the IOMMU. | |
| 37 | Only with an IOMMU can userspace access to DMA capable devices be | |
| 38 | considered secure. VFIO No-IOMMU mode enables IOMMU groups for | |
| 39 | devices without IOMMU backing for the purpose of re-using the VFIO | |
| 40 | infrastructure in a non-secure mode. Use of this mode will result | |
| 41 | in an unsupportable kernel and will therefore taint the kernel. | |
| 42 | Device assignment to virtual machines is also not possible with | |
| 43 | this mode since there is no IOMMU to provide DMA translation. | |
| 44 | ||
| 45 | If you don't know what to do here, say N. | |
| 46 | ||
| 89e1f7d4 | 47 | source "drivers/vfio/pci/Kconfig" |
| 53161532 | 48 | source "drivers/vfio/platform/Kconfig" |
| 7b96953b | 49 | source "drivers/vfio/mdev/Kconfig" |
| 6d7425f1 | 50 | source "virt/lib/Kconfig" |