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Linux/arch/x86/xen/Kconfig

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  1 #
  2 # This Kconfig describes xen options
  3 #
  4 
  5 config XEN
  6         bool "Xen guest support"
  7         depends on PARAVIRT
  8         select PARAVIRT_CLOCK
  9         select XEN_HAVE_PVMMU
 10         depends on X86_64 || (X86_32 && X86_PAE && !X86_VISWS)
 11         depends on 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 
 17 config XEN_DOM0
 18         def_bool y
 19         depends on XEN && PCI_XEN && SWIOTLB_XEN
 20         depends on X86_LOCAL_APIC && X86_IO_APIC && ACPI && PCI
 21 
 22 # Dummy symbol since people have come to rely on the PRIVILEGED_GUEST
 23 # name in tools.
 24 config XEN_PRIVILEGED_GUEST
 25         def_bool XEN_DOM0
 26 
 27 config XEN_PVHVM
 28         def_bool y
 29         depends on XEN && PCI && X86_LOCAL_APIC
 30 
 31 config XEN_MAX_DOMAIN_MEMORY
 32        int
 33        default 500 if X86_64
 34        default 64 if X86_32
 35        depends on XEN
 36        help
 37          This only affects the sizing of some bss arrays, the unused
 38          portions of which are freed.
 39 
 40 config XEN_SAVE_RESTORE
 41        bool
 42        depends on XEN
 43        select HIBERNATE_CALLBACKS
 44        default y
 45 
 46 config XEN_DEBUG_FS
 47         bool "Enable Xen debug and tuning parameters in debugfs"
 48         depends on XEN && DEBUG_FS
 49         default n
 50         help
 51           Enable statistics output and various tuning options in debugfs.
 52           Enabling this option may incur a significant performance overhead.
 53 
 54 config XEN_PVH
 55         bool "Support for running as a PVH guest"
 56         depends on X86_64 && XEN && XEN_PVHVM
 57         def_bool n

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