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Name	Size	Permission
arm	[ DIR ]	drwxr-xr-x
interface	[ DIR ]	drwxr-xr-x
acpi.h	3.41 KB	-rw-r--r--
balloon.h	1.15 KB	-rw-r--r--
events.h	5.14 KB	-rw-r--r--
features.h	502 B	-rw-r--r--
grant_table.h	9.99 KB	-rw-r--r--
hvc-console.h	518 B	-rw-r--r--
hvm.h	1.29 KB	-rw-r--r--
page.h	1.34 KB	-rw-r--r--
platform_pci.h	2.04 KB	-rw-r--r--
swiotlb-xen.h	271 B	-rw-r--r--
tmem.h	349 B	-rw-r--r--
xen-ops.h	5.96 KB	-rw-r--r--
xen.h	972 B	-rw-r--r--
xenbus.h	8.54 KB	-rw-r--r--
xenbus_dev.h	1.8 KB	-rw-r--r--

Code Editor : 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	12
#define XEN_PAGE_SIZE	(_AC(1, UL) << XEN_PAGE_SHIFT)
#define XEN_PAGE_MASK	(~(XEN_PAGE_SIZE-1))
#define xen_offset_in_page(p)	((unsigned long)(p) & ~XEN_PAGE_MASK)

/*
 * 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)	\
	(pfn_to_page((unsigned long)(xen_pfn) >> (PAGE_SHIFT - XEN_PAGE_SHIFT)))
#define page_to_xen_pfn(page)		\
	((page_to_pfn(page)) << (PAGE_SHIFT - XEN_PAGE_SHIFT))

#define XEN_PFN_PER_PAGE	(PAGE_SIZE / XEN_PAGE_SIZE)

#define XEN_PFN_DOWN(x)	((x) >> XEN_PAGE_SHIFT)
#define XEN_PFN_UP(x)	(((x) + XEN_PAGE_SIZE-1) >> XEN_PAGE_SHIFT)
#define XEN_PFN_PHYS(x)	((phys_addr_t)(x) << XEN_PAGE_SHIFT)

#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)
{
	return pfn_to_gfn(page_to_xen_pfn(page));
}

struct xen_memory_region {
	unsigned long start_pfn;
	unsigned long n_pfns;
};

#define XEN_EXTRA_MEM_MAX_REGIONS 128 /* == E820_MAX_ENTRIES_ZEROPAGE */

extern __initdata
struct xen_memory_region xen_extra_mem[XEN_EXTRA_MEM_MAX_REGIONS];

extern unsigned long xen_released_pages;

#endif	/* _XEN_PAGE_H */

${this.title}

Code Editor : page.h