LXR qemu/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
  32typedef struct QVirtMachine QVirtMachine;
  33
  34struct QVirtMachine {
  35    QOSGraphObject obj;
  36    QGuestAllocator alloc;
  37    QVirtioMMIODevice virtio_mmio;
  38};
  39
  40static void virt_destructor(QOSGraphObject *obj)
  41{
  42    QVirtMachine *machine = (QVirtMachine *) obj;
  43    alloc_destroy(&machine->alloc);
  44}
  45
  46static 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
  57static 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
  68static 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
  85static 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
  91libqos_init(virtio_mmio_register_nodes);
  92