block/export: Add query-block-exports
[qemu.git] / 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-device-base"
30 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOIOMMU, VIRTIO_IOMMU)
31
32 #define TYPE_VIRTIO_IOMMU_MEMORY_REGION "virtio-iommu-memory-region"
33
34 typedef struct IOMMUDevice {
35 void *viommu;
36 PCIBus *bus;
37 int devfn;
38 IOMMUMemoryRegion iommu_mr;
39 AddressSpace as;
40 } IOMMUDevice;
41
42 typedef struct IOMMUPciBus {
43 PCIBus *bus;
44 IOMMUDevice *pbdev[]; /* Parent array is sparse, so dynamically alloc */
45 } IOMMUPciBus;
46
47 struct VirtIOIOMMU {
48 VirtIODevice parent_obj;
49 VirtQueue *req_vq;
50 VirtQueue *event_vq;
51 struct virtio_iommu_config config;
52 uint64_t features;
53 GHashTable *as_by_busptr;
54 IOMMUPciBus *iommu_pcibus_by_bus_num[PCI_BUS_MAX];
55 PCIBus *primary_bus;
56 ReservedRegion *reserved_regions;
57 uint32_t nb_reserved_regions;
58 GTree *domains;
59 QemuMutex mutex;
60 GTree *endpoints;
61 };
62
63 #endif