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43 lines
1.1 KiB
43 lines
1.1 KiB
/****************************************************************************** |
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* Xen balloon functionality |
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*/ |
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#define RETRY_UNLIMITED 0 |
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struct balloon_stats { |
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/* We aim for 'current allocation' == 'target allocation'. */ |
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unsigned long current_pages; |
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unsigned long target_pages; |
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/* Number of pages in high- and low-memory balloons. */ |
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unsigned long balloon_low; |
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unsigned long balloon_high; |
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unsigned long schedule_delay; |
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unsigned long max_schedule_delay; |
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unsigned long retry_count; |
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unsigned long max_retry_count; |
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#ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG |
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unsigned long hotplug_pages; |
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unsigned long balloon_hotplug; |
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#endif |
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}; |
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extern struct balloon_stats balloon_stats; |
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void balloon_set_new_target(unsigned long target); |
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int alloc_xenballooned_pages(int nr_pages, struct page **pages, |
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bool highmem); |
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void free_xenballooned_pages(int nr_pages, struct page **pages); |
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struct page *get_balloon_scratch_page(void); |
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void put_balloon_scratch_page(void); |
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struct device; |
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#ifdef CONFIG_XEN_SELFBALLOONING |
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extern int register_xen_selfballooning(struct device *dev); |
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#else |
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static inline int register_xen_selfballooning(struct device *dev) |
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{ |
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return -ENOSYS; |
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} |
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#endif
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