projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
| e738fca8 JF |
2 | # |
| 3 | # This Kconfig describes xen options | |
| 4 | # | |
| 5 | ||
| 6 | config XEN | |
| d3d1c4bd | 7 | bool "Xen guest support" |
| 6276a074 | 8 | depends on PARAVIRT |
| 1c7b67f7 | 9 | select PARAVIRT_CLOCK |
| ecca2502 | 10 | select X86_HV_CALLBACK_VECTOR |
| c5f9ee3d | 11 | depends on X86_64 || (X86_32 && X86_PAE) |
| 091b7686 | 12 | depends on X86_64 || (X86_GENERIC || MPENTIUM4 || MATOM) |
| 87ffd2b9 | 13 | depends on X86_LOCAL_APIC && X86_TSC |
| e738fca8 JF |
14 | help |
| 15 | This is the Linux Xen port. Enabling this will allow the | |
| 16 | kernel to boot in a paravirtualized environment under the | |
| 17 | Xen hypervisor. | |
| 8006ec3e | 18 | |
| 5e57f1d6 VK |
19 | config XEN_PV |
| 20 | bool "Xen PV guest support" | |
| 21 | default y | |
| 22 | depends on XEN | |
| a13f2ef1 | 23 | depends on X86_64 |
| c00a280a | 24 | select PARAVIRT_XXL |
| 5e57f1d6 | 25 | select XEN_HAVE_PVMMU |
| 50a1062d | 26 | select XEN_HAVE_VPMU |
| 2aef6f30 | 27 | select GUEST_PERF_EVENTS |
| 5e57f1d6 VK |
28 | help |
| 29 | Support running as a Xen PV guest. | |
| 30 | ||
| bfda93ae JA |
31 | config XEN_512GB |
| 32 | bool "Limit Xen pv-domain memory to 512GB" | |
| 6190c0cc | 33 | depends on XEN_PV |
| bfda93ae JA |
34 | default y |
| 35 | help | |
| 36 | Limit paravirtualized user domains to 512GB of RAM. | |
| 37 | ||
| 38 | The Xen tools and crash dump analysis tools might not support | |
| 39 | pv-domains with more than 512 GB of RAM. This option controls the | |
| 40 | default setting of the kernel to use only up to 512 GB or more. | |
| 41 | It is always possible to change the default via specifying the | |
| 42 | boot parameter "xen_512gb_limit". | |
| 43 | ||
| 33af7469 VK |
44 | config XEN_PV_SMP |
| 45 | def_bool y | |
| 46 | depends on XEN_PV && SMP | |
| 47 | ||
| cae7d81a JB |
48 | config XEN_PV_DOM0 |
| 49 | def_bool y | |
| 50 | depends on XEN_PV && XEN_DOM0 | |
| 6b0661a5 | 51 | |
| ca65f9fc | 52 | config XEN_PVHVM |
| 34aff145 JA |
53 | def_bool y |
| 54 | depends on XEN && X86_LOCAL_APIC | |
| ca65f9fc | 55 | |
| a52482d9 VK |
56 | config XEN_PVHVM_SMP |
| 57 | def_bool y | |
| 58 | depends on XEN_PVHVM && SMP | |
| 59 | ||
| 34aff145 JA |
60 | config XEN_PVHVM_GUEST |
| 61 | bool "Xen PVHVM guest support" | |
| 62 | default y | |
| 63 | depends on XEN_PVHVM && PCI | |
| 64 | help | |
| 65 | Support running as a Xen PVHVM guest. | |
| 66 | ||
| 93a0886e | 67 | config XEN_SAVE_RESTORE |
| b03b016f KK |
68 | bool |
| 69 | depends on XEN | |
| 70 | select HIBERNATE_CALLBACKS | |
| 71 | default y | |
| 994025ca JF |
72 | |
| 73 | config XEN_DEBUG_FS | |
| 74 | bool "Enable Xen debug and tuning parameters in debugfs" | |
| 75 | depends on XEN && DEBUG_FS | |
| 994025ca JF |
76 | help |
| 77 | Enable statistics output and various tuning options in debugfs. | |
| 08115ab4 | 78 | Enabling this option may incur a significant performance overhead. |
| 80df4649 | 79 | |
| ddc416cb | 80 | config XEN_PVH |
| 34aff145 | 81 | bool "Xen PVH guest support" |
| 7243b933 | 82 | depends on XEN && XEN_PVHVM && ACPI |
| 7733607f | 83 | select PVH |
| 34aff145 JA |
84 | help |
| 85 | Support for running as a Xen PVH guest. | |
| cae7d81a JB |
86 | |
| 87 | config XEN_DOM0 | |
| 88 | bool "Xen Dom0 support" | |
| 89 | default XEN_PV | |
| 90 | depends on (XEN_PV && SWIOTLB_XEN) || (XEN_PVH && X86_64) | |
| 91 | depends on X86_IO_APIC && ACPI && PCI | |
| 92 | select X86_X2APIC if XEN_PVH && X86_64 | |
| 93 | help | |
| 94 | Support running as a Xen Dom0 guest. | |
| 3fac3734 JG |
95 | |
| 96 | config XEN_PV_MSR_SAFE | |
| 97 | bool "Always use safe MSR accesses in PV guests" | |
| 98 | default y | |
| 99 | depends on XEN_PV | |
| 100 | help | |
| 101 | Use safe (not faulting) MSR access functions even if the MSR access | |
| 102 | should not fault anyway. | |
| 103 | The default can be changed by using the "xen_msr_safe" boot parameter. |