projects / mirror_ubuntu-bionic-kernel.git / blame
| 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; | |
| 11 | /* Number of pages in high- and low-memory balloons. */ | |
| 12 | unsigned long balloon_low; | |
| 13 | unsigned long balloon_high; | |
| 14 | unsigned long schedule_delay; | |
| 15 | unsigned long max_schedule_delay; | |
| 16 | unsigned long retry_count; | |
| 17 | unsigned long max_retry_count; | |
| 080e2be7 DK |
18 | #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG |
| 19 | unsigned long hotplug_pages; | |
| 20 | unsigned long balloon_hotplug; | |
| 21 | #endif | |
| 803eb047 DDG |
22 | }; |
| 23 | ||
| 24 | extern struct balloon_stats balloon_stats; | |
| 25 | ||
| 26 | void balloon_set_new_target(unsigned long target); | |
| b6f30679 | 27 | |
| 693394b8 SS |
28 | int alloc_xenballooned_pages(int nr_pages, struct page **pages, |
| 29 | bool highmem); | |
| 30 | void free_xenballooned_pages(int nr_pages, struct page **pages); | |
| a50777c7 | 31 | |
| cd9151e2 SS |
32 | struct page *get_balloon_scratch_page(void); |
| 33 | void put_balloon_scratch_page(void); | |
| 34 | ||
| 07068021 | 35 | struct device; |
| a50777c7 | 36 | #ifdef CONFIG_XEN_SELFBALLOONING |
| 07068021 | 37 | extern int register_xen_selfballooning(struct device *dev); |
| a50777c7 | 38 | #else |
| 07068021 | 39 | static inline int register_xen_selfballooning(struct device *dev) |
| a50777c7 DM |
40 | { |
| 41 | return -ENOSYS; | |
| 42 | } | |
| 43 | #endif |