1 # SPDX-License-Identifier: GPL-2.0
3 # This Kconfig describes xen options
7 bool "Xen guest support"
10 depends on X86_64 || (X86_32 && X86_PAE)
11 depends on X86_LOCAL_APIC && X86_TSC
13 This is the Linux Xen port. Enabling this will allow the
14 kernel to boot in a paravirtualized environment under the
18 bool "Xen PV guest support"
21 # XEN_PV is not ready to work with 5-level paging.
22 # Changes to hypervisor are also required.
23 depends on !X86_5LEVEL
27 Support running as a Xen PV guest.
31 depends on XEN_PV && SMP
34 bool "Xen PV Dom0 support"
36 depends on XEN_PV && PCI_XEN && SWIOTLB_XEN
37 depends on X86_IO_APIC && ACPI && PCI
39 Support running as a Xen PV Dom0 guest.
42 bool "Xen PVHVM guest support"
44 depends on XEN && PCI && X86_LOCAL_APIC
46 Support running as a Xen PVHVM guest.
50 depends on XEN_PVHVM && SMP
53 bool "Limit Xen pv-domain memory to 512GB"
54 depends on XEN_PV && X86_64
57 Limit paravirtualized user domains to 512GB of RAM.
59 The Xen tools and crash dump analysis tools might not support
60 pv-domains with more than 512 GB of RAM. This option controls the
61 default setting of the kernel to use only up to 512 GB or more.
62 It is always possible to change the default via specifying the
63 boot parameter "xen_512gb_limit".
65 config XEN_SAVE_RESTORE
68 select HIBERNATE_CALLBACKS
72 bool "Enable Xen debug and tuning parameters in debugfs"
73 depends on XEN && DEBUG_FS
76 Enable statistics output and various tuning options in debugfs.
77 Enabling this option may incur a significant performance overhead.
80 bool "Support for running as a PVH guest"
81 depends on XEN && XEN_PVHVM && ACPI
82 # Pre-built page tables are not ready to handle 5-level paging.
83 depends on !X86_5LEVEL