| # 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. |
