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 "sysemu/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 bool probe_done; 47 } IOMMUDevice; 48 49 typedef struct IOMMUPciBus { 50 PCIBus *bus; 51 IOMMUDevice *pbdev[]; /* Parent array is sparse, so dynamically alloc */ 52 } IOMMUPciBus; 53 54 struct VirtIOIOMMU { 55 VirtIODevice parent_obj; 56 VirtQueue *req_vq; 57 VirtQueue *event_vq; 58 struct virtio_iommu_config config; 59 uint64_t features; 60 GHashTable *as_by_busptr; 61 GHashTable *host_iommu_devices; 62 IOMMUPciBus *iommu_pcibus_by_bus_num[PCI_BUS_MAX]; 63 PCIBus *primary_bus; 64 ReservedRegion *prop_resv_regions; 65 uint32_t nr_prop_resv_regions; 66 GTree *domains; 67 QemuRecMutex mutex; 68 GTree *endpoints; 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 77