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