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- # SPDX-License-Identifier: GPL-2.0
- #
- # This Kconfig describes xen options
- #
- config XEN
- bool "Xen guest support"
- depends on PARAVIRT
- select PARAVIRT_CLOCK
- select X86_HV_CALLBACK_VECTOR
- depends on X86_64 || (X86_32 && X86_PAE)
- depends on X86_LOCAL_APIC && X86_TSC
- help
- This is the Linux Xen port. Enabling this will allow the
- kernel to boot in a paravirtualized environment under the
- Xen hypervisor.
- config XEN_PV
- bool "Xen PV guest support"
- default y
- depends on XEN
- depends on X86_64
- select PARAVIRT_XXL
- select XEN_HAVE_PVMMU
- select XEN_HAVE_VPMU
- select GUEST_PERF_EVENTS
- help
- Support running as a Xen PV guest.
- config XEN_512GB
- bool "Limit Xen pv-domain memory to 512GB"
- depends on XEN_PV
- default y
- help
- Limit paravirtualized user domains to 512GB of RAM.
- The Xen tools and crash dump analysis tools might not support
- pv-domains with more than 512 GB of RAM. This option controls the
- default setting of the kernel to use only up to 512 GB or more.
- It is always possible to change the default via specifying the
- boot parameter "xen_512gb_limit".
- config XEN_PV_SMP
- def_bool y
- depends on XEN_PV && SMP
- config XEN_PV_DOM0
- def_bool y
- depends on XEN_PV && XEN_DOM0
- config XEN_PVHVM
- def_bool y
- depends on XEN && X86_LOCAL_APIC
- config XEN_PVHVM_SMP
- def_bool y
- depends on XEN_PVHVM && SMP
- config XEN_PVHVM_GUEST
- bool "Xen PVHVM guest support"
- default y
- depends on XEN_PVHVM && PCI
- help
- Support running as a Xen PVHVM guest.
- config XEN_SAVE_RESTORE
- bool
- depends on XEN
- select HIBERNATE_CALLBACKS
- default y
- config XEN_DEBUG_FS
- bool "Enable Xen debug and tuning parameters in debugfs"
- depends on XEN && DEBUG_FS
- help
- Enable statistics output and various tuning options in debugfs.
- Enabling this option may incur a significant performance overhead.
- config XEN_PVH
- bool "Xen PVH guest support"
- depends on XEN && XEN_PVHVM && ACPI
- select PVH
- def_bool n
- help
- Support for running as a Xen PVH guest.
- config XEN_DOM0
- bool "Xen Dom0 support"
- default XEN_PV
- depends on (XEN_PV && SWIOTLB_XEN) || (XEN_PVH && X86_64)
- depends on X86_IO_APIC && ACPI && PCI
- select X86_X2APIC if XEN_PVH && X86_64
- help
- Support running as a Xen Dom0 guest.
- config XEN_PV_MSR_SAFE
- bool "Always use safe MSR accesses in PV guests"
- default y
- depends on XEN_PV
- help
- Use safe (not faulting) MSR access functions even if the MSR access
- should not fault anyway.
- The default can be changed by using the "xen_msr_safe" boot parameter.
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