cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

arm-virt-machine.c (2739B)

      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
     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);