1# 2# This Kconfig describes xen options 3# 4 5config XEN 6 bool "Xen guest support" 7 select PARAVIRT 8 select PARAVIRT_CLOCK 9 depends on X86_64 || (X86_32 && X86_PAE && !X86_VISWS) 10 depends on X86_CMPXCHG && X86_TSC 11 help 12 This is the Linux Xen port. Enabling this will allow the 13 kernel to boot in a paravirtualized environment under the 14 Xen hypervisor. 15 16config XEN_PVHVM 17 def_bool y 18 depends on XEN 19 depends on X86_LOCAL_APIC 20 21config XEN_MAX_DOMAIN_MEMORY 22 int "Maximum allowed size of a domain in gigabytes" 23 default 8 if X86_32 24 default 32 if X86_64 25 depends on XEN 26 help 27 The pseudo-physical to machine address array is sized 28 according to the maximum possible memory size of a Xen 29 domain. This array uses 1 page per gigabyte, so there's no 30 need to be too stingy here. 31 32config XEN_SAVE_RESTORE 33 bool 34 depends on XEN && PM 35 default y 36 37config XEN_DEBUG_FS 38 bool "Enable Xen debug and tuning parameters in debugfs" 39 depends on XEN && DEBUG_FS 40 default n 41 help 42 Enable statistics output and various tuning options in debugfs. 43 Enabling this option may incur a significant performance overhead. 44