1 /* 2 * libqos driver framework 3 * 4 * Copyright (c) 2018 Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License version 2.1 as published by the Free Software Foundation. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with this library; if not, see <http://www.gnu.org/licenses/> 17 */ 18 19 #include "qemu/osdep.h" 20 #include "../libqtest.h" 21 #include "qemu/module.h" 22 #include "malloc.h" 23 #include "qgraph.h" 24 #include "virtio-mmio.h" 25 #include "generic-pcihost.h" 26 #include "hw/pci/pci_regs.h" 27 28 #define ARM_PAGE_SIZE 4096 29 #define VIRTIO_MMIO_BASE_ADDR 0x0A003E00 30 #define ARM_VIRT_RAM_ADDR 0x40000000 31 #define ARM_VIRT_RAM_SIZE 0x20000000 32 #define VIRTIO_MMIO_SIZE 0x00000200 33 34 typedef struct QVirtMachine QVirtMachine; 35 36 struct QVirtMachine { 37 QOSGraphObject obj; 38 QGuestAllocator alloc; 39 QVirtioMMIODevice virtio_mmio; 40 QGenericPCIHost bridge; 41 }; 42 43 static void virt_destructor(QOSGraphObject *obj) 44 { 45 QVirtMachine *machine = (QVirtMachine *) obj; 46 alloc_destroy(&machine->alloc); 47 } 48 49 static void *virt_get_driver(void *object, const char *interface) 50 { 51 QVirtMachine *machine = object; 52 if (!g_strcmp0(interface, "memory")) { 53 return &machine->alloc; 54 } 55 56 fprintf(stderr, "%s not present in arm/virtio\n", interface); 57 g_assert_not_reached(); 58 } 59 60 static QOSGraphObject *virt_get_device(void *obj, const char *device) 61 { 62 QVirtMachine *machine = obj; 63 if (!g_strcmp0(device, "generic-pcihost")) { 64 return &machine->bridge.obj; 65 } else if (!g_strcmp0(device, "virtio-mmio")) { 66 return &machine->virtio_mmio.obj; 67 } 68 69 fprintf(stderr, "%s not present in arm/virt\n", device); 70 g_assert_not_reached(); 71 } 72 73 static void *qos_create_machine_arm_virt(QTestState *qts) 74 { 75 QVirtMachine *machine = g_new0(QVirtMachine, 1); 76 77 alloc_init(&machine->alloc, 0, 78 ARM_VIRT_RAM_ADDR, 79 ARM_VIRT_RAM_ADDR + ARM_VIRT_RAM_SIZE, 80 ARM_PAGE_SIZE); 81 qvirtio_mmio_init_device(&machine->virtio_mmio, qts, VIRTIO_MMIO_BASE_ADDR, 82 VIRTIO_MMIO_SIZE); 83 84 qos_create_generic_pcihost(&machine->bridge, qts, &machine->alloc); 85 86 machine->obj.get_device = virt_get_device; 87 machine->obj.get_driver = virt_get_driver; 88 machine->obj.destructor = virt_destructor; 89 return machine; 90 } 91 92 static void virt_machine_register_nodes(void) 93 { 94 qos_node_create_machine("arm/virt", qos_create_machine_arm_virt); 95 qos_node_contains("arm/virt", "virtio-mmio", NULL); 96 97 qos_node_create_machine_args("aarch64/virt", qos_create_machine_arm_virt, 98 " -cpu max"); 99 qos_node_contains("aarch64/virt", "generic-pcihost", NULL); 100 } 101 102 libqos_init(virt_machine_register_nodes); 103