2 # This Kconfig describes xen options
6 bool "Xen guest support"
11 depends on X86_64 || (X86_32 && X86_PAE)
12 depends on X86_LOCAL_APIC && X86_TSC
14 This is the Linux Xen port. Enabling this will allow the
15 kernel to boot in a paravirtualized environment under the
20 depends on XEN && PCI_XEN && SWIOTLB_XEN
21 depends on X86_IO_APIC && ACPI && PCI
25 depends on XEN && PCI && X86_LOCAL_APIC
28 bool "Limit Xen pv-domain memory to 512GB"
29 depends on XEN && X86_64
32 Limit paravirtualized user domains to 512GB of RAM.
34 The Xen tools and crash dump analysis tools might not support
35 pv-domains with more than 512 GB of RAM. This option controls the
36 default setting of the kernel to use only up to 512 GB or more.
37 It is always possible to change the default via specifying the
38 boot parameter "xen_512gb_limit".
40 config XEN_SAVE_RESTORE
43 select HIBERNATE_CALLBACKS
47 bool "Enable Xen debug and tuning parameters in debugfs"
48 depends on XEN && DEBUG_FS
51 Enable statistics output and various tuning options in debugfs.
52 Enabling this option may incur a significant performance overhead.
55 bool "Support for running as a PVH guest"
56 depends on XEN && XEN_PVHVM && ACPI