doxygen/html/gnttab_8h_source.html

/*

 * Copyright (c) 2021-2024 EPAM Systems

 *

 * SPDX-License-Identifier: Apache-2.0

 */


#ifndef __XEN_GNTTAB_H__

#define __XEN_GNTTAB_H__


#include <stdbool.h>

#include <stdint.h>


#include <xen/public/grant_table.h>


grant_ref_t gnttab_grant_access(domid_t domid, unsigned long gfn,

                                bool readonly);


int gnttab_end_access(grant_ref_t gref);


int32_t gnttab_alloc_and_grant(void **map, bool readonly);


void *gnttab_get_pages(unsigned int npages);


int gnttab_put_pages(void *start_addr, unsigned int npages);


int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops, unsigned int count);


int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops, unsigned int count);


const char *gnttabop_error(int16_t status);


#endif /* __XEN_GNTTAB_H__ */

gnttab_end_access
int gnttab_end_access(grant_ref_t gref)
Release a grant reference created by gnttab_grant_access().

gnttab_get_pages
void * gnttab_get_pages(unsigned int npages)
Allocate pages that can host grant mappings.

gnttab_put_pages
int gnttab_put_pages(void *start_addr, unsigned int npages)
Release pages allocated by gnttab_get_pages().

gnttab_map_refs
int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops, unsigned int count)
Map one or more foreign grant references.

gnttab_grant_access
grant_ref_t gnttab_grant_access(domid_t domid, unsigned long gfn, bool readonly)
Grant another domain access to a guest frame.

gnttab_unmap_refs
int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops, unsigned int count)
Unmap one or more foreign grant references.

gnttabop_error
const char * gnttabop_error(int16_t status)
Convert a Xen grant-table status into readable text.

gnttab_alloc_and_grant
int32_t gnttab_alloc_and_grant(void **map, bool readonly)
Allocate a page and immediately grant access to it.

stdbool.h

stdint.h

int32_t
__INT32_TYPE__ int32_t
Definition stdint.h:74

int16_t
__INT16_TYPE__ int16_t
Definition stdint.h:73