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28e98c2c20
pfn_to_mfn(page_to_pfn(p)) is a common use case so add a generic helper for it. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
24 lines
450 B
C
24 lines
450 B
C
#ifndef _XEN_PAGE_H
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#define _XEN_PAGE_H
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#include <asm/xen/page.h>
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static inline unsigned long page_to_mfn(struct page *page)
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{
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return pfn_to_mfn(page_to_pfn(page));
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}
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struct xen_memory_region {
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phys_addr_t start;
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phys_addr_t size;
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};
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#define XEN_EXTRA_MEM_MAX_REGIONS 128 /* == E820MAX */
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extern __initdata
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struct xen_memory_region xen_extra_mem[XEN_EXTRA_MEM_MAX_REGIONS];
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extern unsigned long xen_released_pages;
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#endif /* _XEN_PAGE_H */
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