diff options
Diffstat (limited to 'drivers/xen/Kconfig')
| -rw-r--r-- | drivers/xen/Kconfig | 85 |
1 files changed, 77 insertions, 8 deletions
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index 8795480c235..38fb36e1c59 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -18,11 +18,10 @@ config XEN_SELFBALLOONING by the current usage of anonymous memory ("committed AS") and controlled by various sysfs-settable parameters. Configuring FRONTSWAP is highly recommended; if it is not configured, self- - ballooning is disabled by default but can be enabled with the - 'selfballooning' kernel boot parameter. If FRONTSWAP is configured, + ballooning is disabled by default. If FRONTSWAP is configured, frontswap-selfshrinking is enabled by default but can be disabled - with the 'noselfshrink' kernel boot parameter; and self-ballooning - is enabled by default but can be disabled with the 'noselfballooning' + with the 'tmem.selfshrink=0' kernel boot parameter; and self-ballooning + is enabled by default but can be disabled with the 'tmem.selfballooning=0' kernel boot parameter. Note that systems without a sufficiently large swap device should not enable self-ballooning. @@ -71,7 +70,7 @@ config XEN_DEV_EVTCHN tristate "Xen /dev/xen/evtchn device" default y help - The evtchn driver allows a userspace process to triger event + The evtchn driver allows a userspace process to trigger event channels and to receive notification of an event channel firing. If in doubt, say yes. @@ -86,6 +85,7 @@ config XEN_BACKEND config XENFS tristate "Xen filesystem" + select XEN_PRIVCMD default y help The xen filesystem provides a way for domains to share @@ -139,12 +139,12 @@ config XEN_GRANT_DEV_ALLOC config SWIOTLB_XEN def_bool y - depends on PCI select SWIOTLB config XEN_TMEM - bool - default y if (CLEANCACHE || FRONTSWAP) + tristate + depends on !ARM && !ARM64 + default m if (CLEANCACHE || FRONTSWAP) help Shim to interface in-kernel Transcendent Memory hooks (e.g. cleancache and frontswap) to Xen tmem hypercalls. @@ -171,4 +171,73 @@ config XEN_PCIDEV_BACKEND xen-pciback.hide=(03:00.0)(04:00.0) If in doubt, say m. + +config XEN_PRIVCMD + tristate + depends on XEN + default m + +config XEN_STUB + bool "Xen stub drivers" + depends on XEN && X86_64 && BROKEN + default n + help + Allow kernel to install stub drivers, to reserve space for Xen drivers, + i.e. memory hotplug and cpu hotplug, and to block native drivers loaded, + so that real Xen drivers can be modular. + + To enable Xen features like cpu and memory hotplug, select Y here. + +config XEN_ACPI_HOTPLUG_MEMORY + tristate "Xen ACPI memory hotplug" + depends on XEN_DOM0 && XEN_STUB && ACPI + default n + help + This is Xen ACPI memory hotplug. + + Currently Xen only support ACPI memory hot-add. If you want + to hot-add memory at runtime (the hot-added memory cannot be + removed until machine stop), select Y/M here, otherwise select N. + +config XEN_ACPI_HOTPLUG_CPU + tristate "Xen ACPI cpu hotplug" + depends on XEN_DOM0 && XEN_STUB && ACPI + select ACPI_CONTAINER + default n + help + Xen ACPI cpu enumerating and hotplugging + + For hotplugging, currently Xen only support ACPI cpu hotadd. + If you want to hotadd cpu at runtime (the hotadded cpu cannot + be removed until machine stop), select Y/M here. + +config XEN_ACPI_PROCESSOR + tristate "Xen ACPI processor" + depends on XEN && X86 && ACPI_PROCESSOR && CPU_FREQ + default m + help + This ACPI processor uploads Power Management information to the Xen + hypervisor. + + To do that the driver parses the Power Management data and uploads + said information to the Xen hypervisor. Then the Xen hypervisor can + select the proper Cx and Pxx states. It also registers itself as the + SMM so that other drivers (such as ACPI cpufreq scaling driver) will + not load. + + To compile this driver as a module, choose M here: the module will be + called xen_acpi_processor If you do not know what to choose, select + M here. If the CPUFREQ drivers are built in, select Y here. + +config XEN_MCE_LOG + bool "Xen platform mcelog" + depends on XEN_DOM0 && X86_64 && X86_MCE + default n + help + Allow kernel fetching MCE error from Xen platform and + converting it into Linux mcelog format for mcelog tools + +config XEN_HAVE_PVMMU + bool + endmenu |