linux/include/xen/page.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _XEN_PAGE_H
#define _XEN_PAGE_H

#include <asm/page.h>

/* The hypercall interface supports only 4KB page */
#define XEN_PAGE_SHIFT …
#define XEN_PAGE_SIZE …
#define XEN_PAGE_MASK …
#define xen_offset_in_page(p) …

/*
 * We assume that PAGE_SIZE is a multiple of XEN_PAGE_SIZE
 * XXX: Add a BUILD_BUG_ON?
 */

#define xen_pfn_to_page(xen_pfn) …
#define page_to_xen_pfn(page) …

#define XEN_PFN_PER_PAGE …

#define XEN_PFN_DOWN(x) …
#define XEN_PFN_UP(x) …

#include <asm/xen/page.h>

/* Return the GFN associated to the first 4KB of the page */
static inline unsigned long xen_page_to_gfn(struct page *page)
{ … }

struct xen_memory_region { … };

#define XEN_EXTRA_MEM_MAX_REGIONS …

extern __initdata
struct xen_memory_region xen_extra_mem[XEN_EXTRA_MEM_MAX_REGIONS];

extern unsigned long xen_released_pages;

#endif	/* _XEN_PAGE_H */