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40 lines
1.0 KiB
40 lines
1.0 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/****************************************************************************** |
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* Xen balloon functionality |
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*/ |
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#ifndef _XEN_BALLOON_H |
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#define _XEN_BALLOON_H |
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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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unsigned long target_unpopulated; |
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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 total_pages; |
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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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}; |
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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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void free_xenballooned_pages(int nr_pages, struct page **pages); |
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#ifdef CONFIG_XEN_BALLOON |
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void xen_balloon_init(void); |
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#else |
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static inline void xen_balloon_init(void) |
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{ |
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} |
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#endif |
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#endif /* _XEN_BALLOON_H */
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