| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | # |
| 3 | # This Kconfig describes xen options |
| 4 | # |
| 5 | |
| 6 | config XEN |
| 7 | bool "Xen guest support" |
| 8 | depends on PARAVIRT |
| 9 | select PARAVIRT_CLOCK |
| 10 | depends on X86_64 || (X86_32 && X86_PAE) |
| 11 | depends on X86_LOCAL_APIC && X86_TSC |
| 12 | help |
| 13 | This is the Linux Xen port. Enabling this will allow the |
| 14 | kernel to boot in a paravirtualized environment under the |
| 15 | Xen hypervisor. |
| 16 | |
| 17 | config XEN_PV |
| 18 | bool "Xen PV guest support" |
| 19 | default y |
| 20 | depends on XEN |
| 21 | select XEN_HAVE_PVMMU |
| 22 | select XEN_HAVE_VPMU |
| 23 | help |
| 24 | Support running as a Xen PV guest. |
| 25 | |
| 26 | config XEN_PV_SMP |
| 27 | def_bool y |
| 28 | depends on XEN_PV && SMP |
| 29 | |
| 30 | config XEN_DOM0 |
| 31 | bool "Xen PV Dom0 support" |
| 32 | default y |
| 33 | depends on XEN_PV && PCI_XEN && SWIOTLB_XEN |
| 34 | depends on X86_IO_APIC && ACPI && PCI |
| 35 | help |
| 36 | Support running as a Xen PV Dom0 guest. |
| 37 | |
| 38 | config XEN_PVHVM |
| 39 | bool "Xen PVHVM guest support" |
| 40 | default y |
| 41 | depends on XEN && PCI && X86_LOCAL_APIC |
| 42 | help |
| 43 | Support running as a Xen PVHVM guest. |
| 44 | |
| 45 | config XEN_PVHVM_SMP |
| 46 | def_bool y |
| 47 | depends on XEN_PVHVM && SMP |
| 48 | |
| 49 | config XEN_512GB |
| 50 | bool "Limit Xen pv-domain memory to 512GB" |
| 51 | depends on XEN_PV && X86_64 |
| 52 | default y |
| 53 | help |
| 54 | Limit paravirtualized user domains to 512GB of RAM. |
| 55 | |
| 56 | The Xen tools and crash dump analysis tools might not support |
| 57 | pv-domains with more than 512 GB of RAM. This option controls the |
| 58 | default setting of the kernel to use only up to 512 GB or more. |
| 59 | It is always possible to change the default via specifying the |
| 60 | boot parameter "xen_512gb_limit". |
| 61 | |
| 62 | config XEN_SAVE_RESTORE |
| 63 | bool |
| 64 | depends on XEN |
| 65 | select HIBERNATE_CALLBACKS |
| 66 | default y |
| 67 | |
| 68 | config XEN_DEBUG_FS |
| 69 | bool "Enable Xen debug and tuning parameters in debugfs" |
| 70 | depends on XEN && DEBUG_FS |
| 71 | default n |
| 72 | help |
| 73 | Enable statistics output and various tuning options in debugfs. |
| 74 | Enabling this option may incur a significant performance overhead. |
| 75 | |
| 76 | config XEN_PVH |
| 77 | bool "Support for running as a PVH guest" |
| 78 | depends on XEN && XEN_PVHVM && ACPI |
| 79 | def_bool n |