projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 27fb7f00 RD |
1 | menu "Xen driver support" |
| 2 | depends on XEN | |
| 3 | ||
| 1775826c JF |
4 | config XEN_BALLOON |
| 5 | bool "Xen memory balloon driver" | |
| 1775826c JF |
6 | default y |
| 7 | help | |
| 8 | The balloon driver allows the Xen domain to request more memory from | |
| 9 | the system to expand the domain's memory allocation, or alternatively | |
| 10 | return unneeded memory to the system. | |
| 11 | ||
| 12 | config XEN_SCRUB_PAGES | |
| 13 | bool "Scrub pages before returning them to system" | |
| 14 | depends on XEN_BALLOON | |
| 15 | default y | |
| 16 | help | |
| 17 | Scrub pages before returning them to the system for reuse by | |
| 18 | other domains. This makes sure that any confidential data | |
| 19 | is not accidentally visible to other domains. Is it more | |
| 20 | secure, but slightly less efficient. | |
| 21 | If in doubt, say yes. | |
| 1107ba88 | 22 | |
| f7116284 IC |
23 | config XEN_DEV_EVTCHN |
| 24 | tristate "Xen /dev/xen/evtchn device" | |
| f7116284 IC |
25 | default y |
| 26 | help | |
| 27 | The evtchn driver allows a userspace process to triger event | |
| 28 | channels and to receive notification of an event channel | |
| 29 | firing. | |
| 30 | If in doubt, say yes. | |
| 31 | ||
| df660251 | 32 | config XEN_BACKEND |
| 329620a8 | 33 | bool "Backend driver support" |
| df660251 IC |
34 | depends on XEN_DOM0 |
| 35 | default y | |
| 36 | help | |
| 37 | Support for backend device drivers that provide I/O services | |
| 38 | to other virtual machines. | |
| 39 | ||
| 1107ba88 AZ |
40 | config XENFS |
| 41 | tristate "Xen filesystem" | |
| 1107ba88 AZ |
42 | default y |
| 43 | help | |
| 44 | The xen filesystem provides a way for domains to share | |
| 45 | information with each other and with the hypervisor. | |
| 46 | For example, by reading and writing the "xenbus" file, guests | |
| 47 | may pass arbitrary information to the initial domain. | |
| 48 | If in doubt, say yes. | |
| 49 | ||
| 50 | config XEN_COMPAT_XENFS | |
| 51 | bool "Create compatibility mount point /proc/xen" | |
| 52 | depends on XENFS | |
| 53 | default y | |
| 54 | help | |
| 55 | The old xenstore userspace tools expect to find "xenbus" | |
| 56 | under /proc/xen, but "xenbus" is now found at the root of the | |
| 57 | xenfs filesystem. Selecting this causes the kernel to create | |
| 692105b8 | 58 | the compatibility mount point /proc/xen if it is running on |
| 1107ba88 AZ |
59 | a xen platform. |
| 60 | If in doubt, say yes. | |
| 61 | ||
| cff7e81b JF |
62 | config XEN_SYS_HYPERVISOR |
| 63 | bool "Create xen entries under /sys/hypervisor" | |
| 27fb7f00 | 64 | depends on SYSFS |
| cff7e81b JF |
65 | select SYS_HYPERVISOR |
| 66 | default y | |
| 67 | help | |
| 68 | Create entries under /sys/hypervisor describing the Xen | |
| 69 | hypervisor environment. When running native or in another | |
| 70 | virtual environment, /sys/hypervisor will still be present, | |
| 27fb7f00 RD |
71 | but will have no xen contents. |
| 72 | ||
| 2de06cc1 IC |
73 | config XEN_XENBUS_FRONTEND |
| 74 | tristate | |
| 6bac7f9f | 75 | |
| 183d03cc SS |
76 | config XEN_PLATFORM_PCI |
| 77 | tristate "xen platform pci device driver" | |
| ca65f9fc | 78 | depends on XEN_PVHVM |
| 183d03cc SS |
79 | default m |
| 80 | help | |
| 81 | Driver for the Xen PCI Platform device: it is responsible for | |
| 82 | initializing xenbus and grant_table when running in a Xen HVM | |
| 83 | domain. As a consequence this driver is required to run any Xen PV | |
| 84 | frontend on Xen HVM. | |
| 26f0cf91 | 85 | |
| b097186f KRW |
86 | config SWIOTLB_XEN |
| 87 | def_bool y | |
| 2775609c KRW |
88 | depends on PCI |
| 89 | select SWIOTLB | |
| b097186f | 90 | |
| 27fb7f00 | 91 | endmenu |