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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
select PARAVIRT_XXL
select XEN_HAVE_PVMMU
select XEN_HAVE_VPMU
help
Support running as a Xen PV guest.
config XEN_PV_SMP
def_bool y
depends on XEN_PV && SMP
config XEN_DOM0
bool "Xen PV Dom0 support"
default y
depends on XEN_PV && PCI_XEN && SWIOTLB_XEN
depends on X86_IO_APIC && ACPI && PCI
help
Support running as a Xen PV Dom0 guest.
config XEN_PVHVM
bool "Xen PVHVM guest support"
default y
depends on XEN && PCI && X86_LOCAL_APIC
help
Support running as a Xen PVHVM guest.
config XEN_PVHVM_SMP
def_bool y
depends on XEN_PVHVM && SMP
config XEN_512GB
bool "Limit Xen pv-domain memory to 512GB"
depends on XEN_PV && X86_64
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_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 "Support for running as a Xen PVH guest"
depends on XEN && XEN_PVHVM && ACPI
select PVH
def_bool n
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