tests/libqos/arm-virt-machine.c

   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 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 "libqos/malloc.h"
  23 #include "libqos/qgraph.h"
  24 #include "libqos/virtio-mmio.h"
  25
  26 #define ARM_PAGE_SIZE               4096
  27 #define VIRTIO_MMIO_BASE_ADDR       0x0A003E00
  28 #define ARM_VIRT_RAM_ADDR           0x40000000
  29 #define ARM_VIRT_RAM_SIZE           0x20000000
  30 #define VIRTIO_MMIO_SIZE            0x00000200
  31
  32 typedef struct QVirtMachine QVirtMachine;
  33
  34 struct QVirtMachine {
  35     QOSGraphObject obj;
  36     QGuestAllocator alloc;
  37     QVirtioMMIODevice virtio_mmio;
  38 };
  39
  40 static void virt_destructor(QOSGraphObject *obj)
  41 {
  42     QVirtMachine *machine = (QVirtMachine *) obj;
  43     alloc_destroy(&machine->alloc);
  44 }
  45
  46 static void *virt_get_driver(void *object, const char *interface)
  47 {
  48     QVirtMachine *machine = object;
  49     if (!g_strcmp0(interface, "memory")) {
  50         return &machine->alloc;
  51     }
  52
  53     fprintf(stderr, "%s not present in arm/virtio\n", interface);
  54     g_assert_not_reached();
  55 }
  56
  57 static QOSGraphObject *virt_get_device(void *obj, const char *device)
  58 {
  59     QVirtMachine *machine = obj;
  60     if (!g_strcmp0(device, "virtio-mmio")) {
  61         return &machine->virtio_mmio.obj;
  62     }
  63
  64     fprintf(stderr, "%s not present in arm/virtio\n", device);
  65     g_assert_not_reached();
  66 }
  67
  68 static void *qos_create_machine_arm_virt(QTestState *qts)
  69 {
  70     QVirtMachine *machine = g_new0(QVirtMachine, 1);
  71
  72     alloc_init(&machine->alloc, 0,
  73                ARM_VIRT_RAM_ADDR,
  74                ARM_VIRT_RAM_ADDR + ARM_VIRT_RAM_SIZE,
  75                ARM_PAGE_SIZE);
  76     qvirtio_mmio_init_device(&machine->virtio_mmio, qts, VIRTIO_MMIO_BASE_ADDR,
  77                              VIRTIO_MMIO_SIZE);
  78
  79     machine->obj.get_device = virt_get_device;
  80     machine->obj.get_driver = virt_get_driver;
  81     machine->obj.destructor = virt_destructor;
  82     return machine;
  83 }
  84
  85 static void virtio_mmio_register_nodes(void)
  86 {
  87     qos_node_create_machine("arm/virt", qos_create_machine_arm_virt);
  88     qos_node_contains("arm/virt", "virtio-mmio", NULL);
  89 }
  90
  91 libqos_init(virtio_mmio_register_nodes);