cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

char-null.c (1872B)

      1/*
      2 * QEMU System Emulator
      3 *
      4 * Copyright (c) 2003-2008 Fabrice Bellard
      5 *
      6 * Permission is hereby granted, free of charge, to any person obtaining a copy
      7 * of this software and associated documentation files (the "Software"), to deal
      8 * in the Software without restriction, including without limitation the rights
      9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     10 * copies of the Software, and to permit persons to whom the Software is
     11 * furnished to do so, subject to the following conditions:
     12 *
     13 * The above copyright notice and this permission notice shall be included in
     14 * all copies or substantial portions of the Software.
     15 *
     16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     22 * THE SOFTWARE.
     23 */
     24
     25#include "qemu/osdep.h"
     26#include "chardev/char.h"
     27#include "qemu/module.h"
     28
     29static void null_chr_open(Chardev *chr,
     30                          ChardevBackend *backend,
     31                          bool *be_opened,
     32                          Error **errp)
     33{
     34    *be_opened = false;
     35}
     36
     37static void char_null_class_init(ObjectClass *oc, void *data)
     38{
     39    ChardevClass *cc = CHARDEV_CLASS(oc);
     40
     41    cc->open = null_chr_open;
     42}
     43
     44static const TypeInfo char_null_type_info = {
     45    .name = TYPE_CHARDEV_NULL,
     46    .parent = TYPE_CHARDEV,
     47    .instance_size = sizeof(Chardev),
     48    .class_init = char_null_class_init,
     49};
     50
     51static void register_types(void)
     52{
     53    type_register_static(&char_null_type_info);
     54}
     55
     56type_init(register_types);