| 0,0 → 1,60 |
|---|
| /* |
| * Copyright (C) 2006 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include <ddi.h> |
| #include <libc.h> |
| #include <task.h> |
| #include <kernel/ddi/ddi_arg.h> |
| |
| /** Map piece of physical memory to task. |
| * |
| * Caller of this function must have the CAP_MEM_MANAGER capability. |
| * |
| * @param id Task ID. |
| * @param pf Physical address of the starting frame. |
| * @param vp Virtual address of the sterting page. |
| * @param pages Number of pages to map. |
| * @param writable If true, the mapping will be created writable. |
| * |
| * @return 0 on success, EPERM if the caller lacks the CAP_MEM_MANAGER capability, |
| * ENOENT if there is no task with specified ID and ENOMEM if there |
| * was some problem in creating address space area. |
| */ |
| int map_physmem(task_id_t id, void *pf, void *vp, unsigned long pages, int writable) |
| { |
| task_id_t task_id; |
| ddi_arg_t arg; |
| |
| arg.task_id = id; |
| arg.phys_base = pf; |
| arg.virt_base = vp; |
| arg.pages = pages; |
| arg.writable = writable; |
| |
| return __SYSCALL1(SYS_MAP_PHYSMEM, (sysarg_t) &arg); |
| } |