| 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/core/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, const 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) |