1 /* 2 * AWS Nitro Secure Module (NSM) device 3 * 4 * Copyright (c) 2024 Dorjoy Chowdhury <dorjoychy111@gmail.com> 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or 7 * (at your option) any later version. See the COPYING file in the 8 * top-level directory. 9 */ 10 11 #include "qemu/osdep.h" 12 13 #include "hw/virtio/virtio-pci.h" 14 #include "hw/virtio/virtio-nsm.h" 15 #include "hw/qdev-properties.h" 16 #include "qapi/error.h" 17 #include "qemu/module.h" 18 #include "qom/object.h" 19 20 typedef struct VirtIONsmPCI VirtIONsmPCI; 21 22 #define TYPE_VIRTIO_NSM_PCI "virtio-nsm-pci-base" 23 DECLARE_INSTANCE_CHECKER(VirtIONsmPCI, VIRTIO_NSM_PCI, 24 TYPE_VIRTIO_NSM_PCI) 25 26 struct VirtIONsmPCI { 27 VirtIOPCIProxy parent_obj; 28 VirtIONSM vdev; 29 }; 30 31 static void virtio_nsm_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 32 { 33 VirtIONsmPCI *vnsm = VIRTIO_NSM_PCI(vpci_dev); 34 DeviceState *vdev = DEVICE(&vnsm->vdev); 35 36 virtio_pci_force_virtio_1(vpci_dev); 37 38 if (!qdev_realize(vdev, BUS(&vpci_dev->bus), errp)) { 39 return; 40 } 41 } 42 43 static void virtio_nsm_pci_class_init(ObjectClass *klass, void *data) 44 { 45 DeviceClass *dc = DEVICE_CLASS(klass); 46 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 47 48 k->realize = virtio_nsm_pci_realize; 49 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 50 } 51 52 static void virtio_nsm_initfn(Object *obj) 53 { 54 VirtIONsmPCI *dev = VIRTIO_NSM_PCI(obj); 55 56 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 57 TYPE_VIRTIO_NSM); 58 } 59 60 static const VirtioPCIDeviceTypeInfo virtio_nsm_pci_info = { 61 .base_name = TYPE_VIRTIO_NSM_PCI, 62 .generic_name = "virtio-nsm-pci", 63 .instance_size = sizeof(VirtIONsmPCI), 64 .instance_init = virtio_nsm_initfn, 65 .class_init = virtio_nsm_pci_class_init, 66 }; 67 68 static void virtio_nsm_pci_register(void) 69 { 70 virtio_pci_types_register(&virtio_nsm_pci_info); 71 } 72 73 type_init(virtio_nsm_pci_register) 74