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 29 #define TYPE_VIRTIO_IOMMU "virtio-iommu-device" 30 #define TYPE_VIRTIO_IOMMU_PCI "virtio-iommu-pci" 31 OBJECT_DECLARE_SIMPLE_TYPE(VirtIOIOMMU, VIRTIO_IOMMU) 32 33 #define TYPE_VIRTIO_IOMMU_MEMORY_REGION "virtio-iommu-memory-region" 34 35 typedef struct IOMMUDevice { 36 void *viommu; 37 PCIBus *bus; 38 int devfn; 39 IOMMUMemoryRegion iommu_mr; 40 AddressSpace as; 41 MemoryRegion root; /* The root container of the device */ 42 MemoryRegion bypass_mr; /* The alias of shared memory MR */ 43 GList *resv_regions; 44 GList *host_resv_ranges; 45 bool probe_done; 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 IOMMUPciBus *iommu_pcibus_by_bus_num[PCI_BUS_MAX]; 61 PCIBus *primary_bus; 62 ReservedRegion *prop_resv_regions; 63 uint32_t nr_prop_resv_regions; 64 GTree *domains; 65 QemuRecMutex mutex; 66 GTree *endpoints; 67 bool boot_bypass; 68 Notifier machine_done; 69 bool granule_frozen; 70 GranuleMode granule_mode; 71 uint8_t aw_bits; 72 }; 73 74 #endif 75