| Jeremy Fitzhardinge | e738fca8 | 2007-07-17 18:37:05 -0700 | [diff] [blame] | 1 | # |
| 2 | # This Kconfig describes xen options |
| 3 | # |
| 4 | |
| 5 | config XEN |
| Rusty Russell | d3d1c4b | 2007-10-22 10:55:21 +1000 | [diff] [blame] | 6 | bool "Xen guest support" |
| 7 | select PARAVIRT |
| Gerd Hoffmann | 1c7b67f | 2008-06-03 16:17:30 +0200 | [diff] [blame] | 8 | select PARAVIRT_CLOCK |
| Ingo Molnar | 965c7ec | 2009-02-22 23:19:12 +0100 | [diff] [blame] | 9 | depends on X86_64 || (X86_32 && X86_PAE && !X86_VISWS) |
| Jeremy Fitzhardinge | 51dd660 | 2008-07-08 15:07:17 -0700 | [diff] [blame] | 10 | depends on X86_CMPXCHG && X86_TSC |
| Jeremy Fitzhardinge | e738fca8 | 2007-07-17 18:37:05 -0700 | [diff] [blame] | 11 | help |
| 12 | This is the Linux Xen port. Enabling this will allow the |
| 13 | kernel to boot in a paravirtualized environment under the |
| 14 | Xen hypervisor. |
| Jeremy Fitzhardinge | 8006ec3 | 2008-05-26 23:31:19 +0100 | [diff] [blame] | 15 | |
| Stefano Stabellini | ca65f9f | 2010-07-29 14:37:48 +0100 | [diff] [blame^] | 16 | config XEN_PVHVM |
| 17 | def_bool y |
| 18 | depends on XEN |
| 19 | depends on X86_LOCAL_APIC |
| 20 | |
| Jeremy Fitzhardinge | 8006ec3 | 2008-05-26 23:31:19 +0100 | [diff] [blame] | 21 | config XEN_MAX_DOMAIN_MEMORY |
| 22 | int "Maximum allowed size of a domain in gigabytes" |
| Jeremy Fitzhardinge | 51dd660 | 2008-07-08 15:07:17 -0700 | [diff] [blame] | 23 | default 8 if X86_32 |
| 24 | default 32 if X86_64 |
| Jeremy Fitzhardinge | 8006ec3 | 2008-05-26 23:31:19 +0100 | [diff] [blame] | 25 | depends on XEN |
| 26 | help |
| 27 | The pseudo-physical to machine address array is sized |
| 28 | according to the maximum possible memory size of a Xen |
| 29 | domain. This array uses 1 page per gigabyte, so there's no |
| Jeremy Fitzhardinge | 51dd660 | 2008-07-08 15:07:17 -0700 | [diff] [blame] | 30 | need to be too stingy here. |
| Jeremy Fitzhardinge | 93a0886 | 2008-07-15 13:43:42 -0700 | [diff] [blame] | 31 | |
| 32 | config XEN_SAVE_RESTORE |
| 33 | bool |
| Chuck Ebbert | 08115ab | 2008-09-29 18:24:23 -0400 | [diff] [blame] | 34 | depends on XEN && PM |
| Jeremy Fitzhardinge | 994025c | 2008-08-20 17:02:19 -0700 | [diff] [blame] | 35 | default y |
| 36 | |
| 37 | config XEN_DEBUG_FS |
| 38 | bool "Enable Xen debug and tuning parameters in debugfs" |
| 39 | depends on XEN && DEBUG_FS |
| 40 | default n |
| 41 | help |
| 42 | Enable statistics output and various tuning options in debugfs. |
| Chuck Ebbert | 08115ab | 2008-09-29 18:24:23 -0400 | [diff] [blame] | 43 | Enabling this option may incur a significant performance overhead. |