Commit | Line | Data |
---|---|---|
803eb047 DDG |
1 | /****************************************************************************** |
2 | * Xen balloon functionality | |
3 | */ | |
4 | ||
5 | #define RETRY_UNLIMITED 0 | |
6 | ||
7 | struct balloon_stats { | |
8 | /* We aim for 'current allocation' == 'target allocation'. */ | |
9 | unsigned long current_pages; | |
10 | unsigned long target_pages; | |
1cf6a6c8 | 11 | unsigned long target_unpopulated; |
803eb047 DDG |
12 | /* Number of pages in high- and low-memory balloons. */ |
13 | unsigned long balloon_low; | |
14 | unsigned long balloon_high; | |
de5a77d8 | 15 | unsigned long total_pages; |
803eb047 DDG |
16 | unsigned long schedule_delay; |
17 | unsigned long max_schedule_delay; | |
18 | unsigned long retry_count; | |
19 | unsigned long max_retry_count; | |
20 | }; | |
21 | ||
22 | extern struct balloon_stats balloon_stats; | |
23 | ||
24 | void balloon_set_new_target(unsigned long target); | |
b6f30679 | 25 | |
81b286e0 | 26 | int alloc_xenballooned_pages(int nr_pages, struct page **pages); |
693394b8 | 27 | void free_xenballooned_pages(int nr_pages, struct page **pages); |
a50777c7 | 28 | |
07068021 | 29 | struct device; |
a50777c7 | 30 | #ifdef CONFIG_XEN_SELFBALLOONING |
07068021 | 31 | extern int register_xen_selfballooning(struct device *dev); |
a50777c7 | 32 | #else |
07068021 | 33 | static inline int register_xen_selfballooning(struct device *dev) |
a50777c7 DM |
34 | { |
35 | return -ENOSYS; | |
36 | } | |
37 | #endif |