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_DOM0 17 def_bool y 18 depends on XEN && PCI_XEN && SWIOTLB_XEN 19 depends on X86_LOCAL_APIC && X86_IO_APIC && ACPI && PCI 20 21# Dummy symbol since people have come to rely on the PRIVILEGED_GUEST 22# name in tools. 23config XEN_PRIVILEGED_GUEST 24 def_bool XEN_DOM0 25 26config XEN_PVHVM 27 def_bool y 28 depends on XEN 29 depends on X86_LOCAL_APIC 30 31config XEN_MAX_DOMAIN_MEMORY 32 int 33 default 128 34 depends on XEN 35 help 36 This only affects the sizing of some bss arrays, the unused 37 portions of which are freed. 38 39config XEN_SAVE_RESTORE 40 bool 41 depends on XEN && PM 42 default y 43 44config XEN_DEBUG_FS 45 bool "Enable Xen debug and tuning parameters in debugfs" 46 depends on XEN && DEBUG_FS 47 default n 48 help 49 Enable statistics output and various tuning options in debugfs. 50 Enabling this option may incur a significant performance overhead. 51