1# SPDX-License-Identifier: GPL-2.0 2# 3# This Kconfig describes xen options 4# 5 6config XEN 7 bool "Xen guest support" 8 depends on PARAVIRT 9 select PARAVIRT_CLOCK 10 select X86_HV_CALLBACK_VECTOR 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_PV 19 bool "Xen PV guest support" 20 default y 21 depends on XEN 22 depends on X86_64 23 select PARAVIRT_XXL 24 select XEN_HAVE_PVMMU 25 select XEN_HAVE_VPMU 26 help 27 Support running as a Xen PV guest. 28 29config XEN_512GB 30 bool "Limit Xen pv-domain memory to 512GB" 31 depends on XEN_PV 32 default y 33 help 34 Limit paravirtualized user domains to 512GB of RAM. 35 36 The Xen tools and crash dump analysis tools might not support 37 pv-domains with more than 512 GB of RAM. This option controls the 38 default setting of the kernel to use only up to 512 GB or more. 39 It is always possible to change the default via specifying the 40 boot parameter "xen_512gb_limit". 41 42config XEN_PV_SMP 43 def_bool y 44 depends on XEN_PV && SMP 45 46config XEN_PV_DOM0 47 def_bool y 48 depends on XEN_PV && XEN_DOM0 49 50config XEN_PVHVM 51 def_bool y 52 depends on XEN && X86_LOCAL_APIC 53 54config XEN_PVHVM_SMP 55 def_bool y 56 depends on XEN_PVHVM && SMP 57 58config XEN_PVHVM_GUEST 59 bool "Xen PVHVM guest support" 60 default y 61 depends on XEN_PVHVM && PCI 62 help 63 Support running as a Xen PVHVM guest. 64 65config XEN_SAVE_RESTORE 66 bool 67 depends on XEN 68 select HIBERNATE_CALLBACKS 69 default y 70 71config XEN_DEBUG_FS 72 bool "Enable Xen debug and tuning parameters in debugfs" 73 depends on XEN && DEBUG_FS 74 help 75 Enable statistics output and various tuning options in debugfs. 76 Enabling this option may incur a significant performance overhead. 77 78config XEN_PVH 79 bool "Xen PVH guest support" 80 depends on XEN && XEN_PVHVM && ACPI 81 select PVH 82 def_bool n 83 help 84 Support for running as a Xen PVH guest. 85 86config XEN_DOM0 87 bool "Xen Dom0 support" 88 default XEN_PV 89 depends on (XEN_PV && SWIOTLB_XEN) || (XEN_PVH && X86_64) 90 depends on X86_IO_APIC && ACPI && PCI 91 select X86_X2APIC if XEN_PVH && X86_64 92 help 93 Support running as a Xen Dom0 guest. 94