LXR qemu/include/hw/virtio/virtio-iommu.h

   1/*
   2 * virtio-iommu device
   3 *
   4 * Copyright (c) 2020 Red Hat, Inc.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2 or later, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 *
  15 * You should have received a copy of the GNU General Public License along with
  16 * this program.  If not, see <http://www.gnu.org/licenses/>.
  17 *
  18 */
  19
  20#ifndef QEMU_VIRTIO_IOMMU_H
  21#define QEMU_VIRTIO_IOMMU_H
  22
  23#include "standard-headers/linux/virtio_iommu.h"
  24#include "hw/virtio/virtio.h"
  25#include "hw/pci/pci.h"
  26#include "qom/object.h"
  27
  28#define TYPE_VIRTIO_IOMMU "virtio-iommu-device"
  29#define TYPE_VIRTIO_IOMMU_PCI "virtio-iommu-pci"
  30OBJECT_DECLARE_SIMPLE_TYPE(VirtIOIOMMU, VIRTIO_IOMMU)
  31
  32#define TYPE_VIRTIO_IOMMU_MEMORY_REGION "virtio-iommu-memory-region"
  33
  34typedef struct IOMMUDevice {
  35    void         *viommu;
  36    PCIBus       *bus;
  37    int           devfn;
  38    IOMMUMemoryRegion  iommu_mr;
  39    AddressSpace  as;
  40    MemoryRegion root;          /* The root container of the device */
  41    MemoryRegion bypass_mr;     /* The alias of shared memory MR */
  42} IOMMUDevice;
  43
  44typedef struct IOMMUPciBus {
  45    PCIBus       *bus;
  46    IOMMUDevice  *pbdev[]; /* Parent array is sparse, so dynamically alloc */
  47} IOMMUPciBus;
  48
  49struct VirtIOIOMMU {
  50    VirtIODevice parent_obj;
  51    VirtQueue *req_vq;
  52    VirtQueue *event_vq;
  53    struct virtio_iommu_config config;
  54    uint64_t features;
  55    GHashTable *as_by_busptr;
  56    IOMMUPciBus *iommu_pcibus_by_bus_num[PCI_BUS_MAX];
  57    PCIBus *primary_bus;
  58    ReservedRegion *reserved_regions;
  59    uint32_t nb_reserved_regions;
  60    GTree *domains;
  61    QemuRecMutex mutex;
  62    GTree *endpoints;
  63    bool boot_bypass;
  64};
  65
  66#endif
  67