1# 2# This Kconfig describes xen options 3# 4 5config XEN 6 bool "Xen guest support" 7 depends on PARAVIRT 8 select PARAVIRT_CLOCK 9 select XEN_HAVE_PVMMU 10 select XEN_HAVE_VPMU 11 depends on X86_64 || (X86_32 && X86_PAE) 12 depends on X86_LOCAL_APIC && X86_TSC 13 help 14 This is the Linux Xen port. Enabling this will allow the 15 kernel to boot in a paravirtualized environment under the 16 Xen hypervisor. 17 18config XEN_DOM0 19 def_bool y 20 depends on XEN && PCI_XEN && SWIOTLB_XEN 21 depends on X86_IO_APIC && ACPI && PCI 22 23config XEN_PVHVM 24 def_bool y 25 depends on XEN && PCI && X86_LOCAL_APIC 26 27config XEN_512GB 28 bool "Limit Xen pv-domain memory to 512GB" 29 depends on XEN && X86_64 30 default y 31 help 32 Limit paravirtualized user domains to 512GB of RAM. 33 34 The Xen tools and crash dump analysis tools might not support 35 pv-domains with more than 512 GB of RAM. This option controls the 36 default setting of the kernel to use only up to 512 GB or more. 37 It is always possible to change the default via specifying the 38 boot parameter "xen_512gb_limit". 39 40config XEN_SAVE_RESTORE 41 bool 42 depends on XEN 43 select HIBERNATE_CALLBACKS 44 default y 45 46config XEN_DEBUG_FS 47 bool "Enable Xen debug and tuning parameters in debugfs" 48 depends on XEN && DEBUG_FS 49 default n 50 help 51 Enable statistics output and various tuning options in debugfs. 52 Enabling this option may incur a significant performance overhead. 53 54config XEN_PVH 55 bool "Support for running as a PVH guest" 56 depends on X86_64 && XEN && XEN_PVHVM 57 def_bool n 58