tests/libqos/fw_cfg-pc.c

   1 /*
   2  * libqos fw_cfg support for PC
   3  *
   4  * Copyright IBM, Corp. 2012-2013
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.com>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12
  13 #include "libqos/fw_cfg-pc.h"
  14 #include "libqtest.h"
  15 #include <glib.h>
  16
  17 static void pc_fw_cfg_select(QFWCFG *fw_cfg, uint16_t key)
  18 {
  19     outw(0x510, key);
  20 }
  21
  22 static void pc_fw_cfg_read(QFWCFG *fw_cfg, void *data, size_t len)
  23 {
  24     uint8_t *ptr = data;
  25     int i;
  26
  27     for (i = 0; i < len; i++) {
  28         ptr[i] = inb(0x511);
  29     }
  30 }
  31
  32 QFWCFG *pc_fw_cfg_init(void)
  33 {
  34     QFWCFG *fw_cfg = g_malloc0(sizeof(*fw_cfg));
  35
  36     fw_cfg->select = pc_fw_cfg_select;
  37     fw_cfg->read = pc_fw_cfg_read;
  38
  39     return fw_cfg;
  40 }