cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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arm-n800-machine.c (2548B)

      1/*
      2 * libqos driver framework
      3 *
      4 * Copyright (c) 2019 Red Hat, Inc.
      5 *
      6 * Author: Paolo Bonzini <pbonzini@redhat.com>
      7 *
      8 * This library is free software; you can redistribute it and/or
      9 * modify it under the terms of the GNU Lesser General Public
     10 * License version 2.1 as published by the Free Software Foundation.
     11 *
     12 * This library is distributed in the hope that it will be useful,
     13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15 * Lesser General Public License for more details.
     16 *
     17 * You should have received a copy of the GNU Lesser General Public
     18 * License along with this library; if not, see <http://www.gnu.org/licenses/>
     19 */
     20
     21#include "qemu/osdep.h"
     22#include "libqtest.h"
     23#include "malloc.h"
     24#include "qgraph.h"
     25#include "i2c.h"
     26
     27#define ARM_PAGE_SIZE            4096
     28#define N800_RAM_START      0x80000000
     29#define N800_RAM_END        0x88000000
     30
     31typedef struct QN800Machine QN800Machine;
     32
     33struct QN800Machine {
     34    QOSGraphObject obj;
     35    QGuestAllocator alloc;
     36    OMAPI2C i2c_1;
     37};
     38
     39static void *n800_get_driver(void *object, const char *interface)
     40{
     41    QN800Machine *machine = object;
     42    if (!g_strcmp0(interface, "memory")) {
     43        return &machine->alloc;
     44    }
     45
     46    fprintf(stderr, "%s not present in arm/n800\n", interface);
     47    g_assert_not_reached();
     48}
     49
     50static QOSGraphObject *n800_get_device(void *obj, const char *device)
     51{
     52    QN800Machine *machine = obj;
     53    if (!g_strcmp0(device, "omap_i2c")) {
     54        return &machine->i2c_1.obj;
     55    }
     56
     57    fprintf(stderr, "%s not present in arm/n800\n", device);
     58    g_assert_not_reached();
     59}
     60
     61static void n800_destructor(QOSGraphObject *obj)
     62{
     63    QN800Machine *machine = (QN800Machine *) obj;
     64    alloc_destroy(&machine->alloc);
     65}
     66
     67static void *qos_create_machine_arm_n800(QTestState *qts)
     68{
     69    QN800Machine *machine = g_new0(QN800Machine, 1);
     70
     71    alloc_init(&machine->alloc, 0,
     72               N800_RAM_START,
     73               N800_RAM_END,
     74               ARM_PAGE_SIZE);
     75    machine->obj.get_device = n800_get_device;
     76    machine->obj.get_driver = n800_get_driver;
     77    machine->obj.destructor = n800_destructor;
     78
     79    omap_i2c_init(&machine->i2c_1, qts, 0x48070000);
     80    return &machine->obj;
     81}
     82
     83static void n800_register_nodes(void)
     84{
     85    QOSGraphEdgeOptions edge = {
     86        .extra_device_opts = "bus=i2c-bus.0"
     87    };
     88    qos_node_create_machine("arm/n800", qos_create_machine_arm_n800);
     89    qos_node_contains("arm/n800", "omap_i2c", &edge, NULL);
     90}
     91
     92libqos_init(n800_register_nodes);