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 depends on X86_64 || (X86_32 && X86_PAE) 10 depends on X86_LOCAL_APIC && 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_PV 17 bool "Xen PV guest support" 18 default y 19 depends on XEN 20 select XEN_HAVE_PVMMU 21 select XEN_HAVE_VPMU 22 help 23 Support running as a Xen PV guest. 24 25config XEN_PV_SMP 26 def_bool y 27 depends on XEN_PV && SMP 28 29config XEN_DOM0 30 bool "Xen PV Dom0 support" 31 default y 32 depends on XEN_PV && PCI_XEN && SWIOTLB_XEN 33 depends on X86_IO_APIC && ACPI && PCI 34 help 35 Support running as a Xen PV Dom0 guest. 36 37config XEN_PVHVM 38 bool "Xen PVHVM guest support" 39 default y 40 depends on XEN && PCI && X86_LOCAL_APIC 41 help 42 Support running as a Xen PVHVM guest. 43 44config XEN_PVHVM_SMP 45 def_bool y 46 depends on XEN_PVHVM && SMP 47 48config XEN_512GB 49 bool "Limit Xen pv-domain memory to 512GB" 50 depends on XEN_PV && X86_64 51 default y 52 help 53 Limit paravirtualized user domains to 512GB of RAM. 54 55 The Xen tools and crash dump analysis tools might not support 56 pv-domains with more than 512 GB of RAM. This option controls the 57 default setting of the kernel to use only up to 512 GB or more. 58 It is always possible to change the default via specifying the 59 boot parameter "xen_512gb_limit". 60 61config XEN_SAVE_RESTORE 62 bool 63 depends on XEN 64 select HIBERNATE_CALLBACKS 65 default y 66 67config XEN_DEBUG_FS 68 bool "Enable Xen debug and tuning parameters in debugfs" 69 depends on XEN && DEBUG_FS 70 default n 71 help 72 Enable statistics output and various tuning options in debugfs. 73 Enabling this option may incur a significant performance overhead. 74 75config XEN_PVH 76 bool "Support for running as a PVH guest" 77 depends on XEN && XEN_PVHVM && ACPI 78 def_bool n 79