1#ifndef _XEN_PAGE_H
2#define _XEN_PAGE_H
3
4#include <asm/xen/page.h>
5
6static inline unsigned long page_to_mfn(struct page *page)
7{
8	return pfn_to_mfn(page_to_pfn(page));
9}
10
11struct xen_memory_region {
12	phys_addr_t start;
13	phys_addr_t size;
14};
15
16#define XEN_EXTRA_MEM_MAX_REGIONS 128 /* == E820MAX */
17
18extern __initdata
19struct xen_memory_region xen_extra_mem[XEN_EXTRA_MEM_MAX_REGIONS];
20
21extern unsigned long xen_released_pages;
22
23#endif	/* _XEN_PAGE_H */
24