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 depends on X86_64 || (X86_32 && X86_PAE) 11 depends on X86_LOCAL_APIC && X86_TSC 12 help 13 This is the Linux Xen port. Enabling this will allow the 14 kernel to boot in a paravirtualized environment under the 15 Xen hypervisor. 16 17config XEN_PV 18 bool "Xen PV guest support" 19 default y 20 depends on XEN 21 select XEN_HAVE_PVMMU 22 select XEN_HAVE_VPMU 23 help 24 Support running as a Xen PV guest. 25 26config XEN_PV_SMP 27 def_bool y 28 depends on XEN_PV && SMP 29 30config XEN_DOM0 31 bool "Xen PV Dom0 support" 32 default y 33 depends on XEN_PV && PCI_XEN && SWIOTLB_XEN 34 depends on X86_IO_APIC && ACPI && PCI 35 help 36 Support running as a Xen PV Dom0 guest. 37 38config XEN_PVHVM 39 bool "Xen PVHVM guest support" 40 default y 41 depends on XEN && PCI && X86_LOCAL_APIC 42 help 43 Support running as a Xen PVHVM guest. 44 45config XEN_PVHVM_SMP 46 def_bool y 47 depends on XEN_PVHVM && SMP 48 49config XEN_512GB 50 bool "Limit Xen pv-domain memory to 512GB" 51 depends on XEN_PV && X86_64 52 default y 53 help 54 Limit paravirtualized user domains to 512GB of RAM. 55 56 The Xen tools and crash dump analysis tools might not support 57 pv-domains with more than 512 GB of RAM. This option controls the 58 default setting of the kernel to use only up to 512 GB or more. 59 It is always possible to change the default via specifying the 60 boot parameter "xen_512gb_limit". 61 62config XEN_SAVE_RESTORE 63 bool 64 depends on XEN 65 select HIBERNATE_CALLBACKS 66 default y 67 68config XEN_DEBUG_FS 69 bool "Enable Xen debug and tuning parameters in debugfs" 70 depends on XEN && DEBUG_FS 71 default n 72 help 73 Enable statistics output and various tuning options in debugfs. 74 Enabling this option may incur a significant performance overhead. 75 76config XEN_PVH 77 bool "Support for running as a PVH guest" 78 depends on XEN && XEN_PVHVM && ACPI 79 def_bool n 80