hw/i386/x86-iommu.c

   1 /*
   2  * QEMU emulation of common X86 IOMMU
   3  *
   4  * Copyright (C) 2016 Peter Xu, Red Hat <peterx@redhat.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "qemu/osdep.h"
  21 #include "hw/sysbus.h"
  22 #include "hw/boards.h"
  23 #include "hw/i386/x86-iommu.h"
  24
  25 static void x86_iommu_realize(DeviceState *dev, Error **errp)
  26 {
  27     X86IOMMUClass *x86_class = X86_IOMMU_GET_CLASS(dev);
  28     if (x86_class->realize) {
  29         x86_class->realize(dev, errp);
  30     }
  31 }
  32
  33 static void x86_iommu_class_init(ObjectClass *klass, void *data)
  34 {
  35     DeviceClass *dc = DEVICE_CLASS(klass);
  36     dc->realize = x86_iommu_realize;
  37 }
  38
  39 static const TypeInfo x86_iommu_info = {
  40     .name          = TYPE_X86_IOMMU_DEVICE,
  41     .parent        = TYPE_SYS_BUS_DEVICE,
  42     .instance_size = sizeof(X86IOMMUState),
  43     .class_init    = x86_iommu_class_init,
  44     .class_size    = sizeof(X86IOMMUClass),
  45     .abstract      = true,
  46 };
  47
  48 static void x86_iommu_register_types(void)
  49 {
  50     type_register_static(&x86_iommu_info);
  51 }
  52
  53 type_init(x86_iommu_register_types)