xref: /openbmc/linux/arch/x86/xen/Kconfig (revision 84b102f5)
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_DOM0
47	bool "Xen PV Dom0 support"
48	default y
49	depends on XEN_PV && PCI_XEN && SWIOTLB_XEN
50	depends on X86_IO_APIC && ACPI && PCI
51	help
52	  Support running as a Xen PV Dom0 guest.
53
54config XEN_PVHVM
55	def_bool y
56	depends on XEN && X86_LOCAL_APIC
57
58config XEN_PVHVM_SMP
59	def_bool y
60	depends on XEN_PVHVM && SMP
61
62config XEN_PVHVM_GUEST
63	bool "Xen PVHVM guest support"
64	default y
65	depends on XEN_PVHVM && PCI
66	help
67	  Support running as a Xen PVHVM guest.
68
69config XEN_SAVE_RESTORE
70	bool
71	depends on XEN
72	select HIBERNATE_CALLBACKS
73	default y
74
75config XEN_DEBUG_FS
76	bool "Enable Xen debug and tuning parameters in debugfs"
77	depends on XEN && DEBUG_FS
78	help
79	  Enable statistics output and various tuning options in debugfs.
80	  Enabling this option may incur a significant performance overhead.
81
82config XEN_PVH
83	bool "Xen PVH guest support"
84	depends on XEN && XEN_PVHVM && ACPI
85	select PVH
86	def_bool n
87	help
88	  Support for running as a Xen PVH guest.
89