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