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Linux/arch/x86/xen/Kconfig

  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         select XEN_HAVE_VPMU
 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 
 18 config XEN_DOM0
 19         def_bool y
 20         depends on XEN && PCI_XEN && SWIOTLB_XEN
 21         depends on X86_IO_APIC && ACPI && PCI
 22 
 23 config XEN_PVHVM
 24         def_bool y
 25         depends on XEN && PCI && X86_LOCAL_APIC
 26 
 27 config XEN_512GB
 28         bool "Limit Xen pv-domain memory to 512GB"
 29         depends on XEN && X86_64
 30         default y
 31         help
 32           Limit paravirtualized user domains to 512GB of RAM.
 33 
 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".
 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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