| 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 | #include "qapi/qapi-types-virtio.h" |
| 28 | #include "system/host_iommu_device.h" |
| 29 | |
| 30 | #define TYPE_VIRTIO_IOMMU "virtio-iommu-device" |
| 31 | #define TYPE_VIRTIO_IOMMU_PCI "virtio-iommu-pci" |
| 32 | OBJECT_DECLARE_SIMPLE_TYPE(VirtIOIOMMU, VIRTIO_IOMMU) |
| 33 | |
| 34 | #define TYPE_VIRTIO_IOMMU_MEMORY_REGION "virtio-iommu-memory-region" |
| 35 | |
| 36 | typedef struct IOMMUDevice { |
| 37 | void *viommu; |
| 38 | PCIBus *bus; |
| 39 | int devfn; |
| 40 | IOMMUMemoryRegion iommu_mr; |
| 41 | AddressSpace as; |
| 42 | MemoryRegion root; /* The root container of the device */ |
| 43 | MemoryRegion bypass_mr; /* The alias of shared memory MR */ |
| 44 | GList *resv_regions; |
| 45 | GList *host_resv_ranges; |
| 46 | } IOMMUDevice; |
| 47 | |
| 48 | typedef struct IOMMUPciBus { |
| 49 | PCIBus *bus; |
| 50 | IOMMUDevice *pbdev[]; /* Parent array is sparse, so dynamically alloc */ |
| 51 | } IOMMUPciBus; |
| 52 | |
| 53 | struct VirtIOIOMMU { |
| 54 | VirtIODevice parent_obj; |
| 55 | VirtQueue *req_vq; |
| 56 | VirtQueue *event_vq; |
| 57 | struct virtio_iommu_config config; |
| 58 | uint64_t features; |
| 59 | GHashTable *as_by_busptr; |
| 60 | GHashTable *host_iommu_devices; |
| 61 | IOMMUPciBus *iommu_pcibus_by_bus_num[PCI_BUS_MAX]; |
| 62 | PCIBus *primary_bus; |
| 63 | ReservedRegion *prop_resv_regions; |
| 64 | uint32_t nr_prop_resv_regions; |
| 65 | GTree *domains; |
| 66 | QemuRecMutex mutex; |
| 67 | GTree *endpoints; |
| 68 | QEMUTimer *cmd_timer; |
| 69 | bool boot_bypass; |
| 70 | Notifier machine_done; |
| 71 | bool granule_frozen; |
| 72 | GranuleMode granule_mode; |
| 73 | uint8_t aw_bits; |
| 74 | }; |
| 75 | |
| 76 | #endif |