# # This Kconfig describes xen options # config XEN bool "Xen guest support" select PARAVIRT select PARAVIRT_CLOCK depends on X86_64 || (X86_32 && X86_PAE && !X86_VISWS) depends on X86_CMPXCHG && X86_TSC help This is the Linux Xen port. Enabling this will allow the kernel to boot in a paravirtualized environment under the Xen hypervisor. config XEN_MAX_DOMAIN_MEMORY int "Maximum allowed size of a domain in gigabytes" default 8 if X86_32 default 32 if X86_64 depends on XEN help The pseudo-physical to machine address array is sized according to the maximum possible memory size of a Xen domain. This array uses 1 page per gigabyte, so there's no need to be too stingy here. config XEN_SAVE_RESTORE bool depends on XEN && PM default y config XEN_DEBUG_FS bool "Enable Xen debug and tuning parameters in debugfs" depends on XEN && DEBUG_FS default n help Enable statistics output and various tuning options in debugfs. Enabling this option may incur a significant performance overhead.