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-raspi2-machine.c (2727B)

      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 "sdhci.h"
     25
     26#define ARM_PAGE_SIZE             4096
     27#define RASPI2_RAM_ADDR           0
     28#define RASPI2_RAM_SIZE           0x20000000
     29
     30typedef struct QRaspi2Machine QRaspi2Machine;
     31
     32struct QRaspi2Machine {
     33    QOSGraphObject obj;
     34    QGuestAllocator alloc;
     35    QSDHCI_MemoryMapped sdhci;
     36};
     37
     38static void *raspi2_get_driver(void *object, const char *interface)
     39{
     40    QRaspi2Machine *machine = object;
     41    if (!g_strcmp0(interface, "memory")) {
     42        return &machine->alloc;
     43    }
     44
     45    fprintf(stderr, "%s not present in arm/raspi2b\n", interface);
     46    g_assert_not_reached();
     47}
     48
     49static QOSGraphObject *raspi2_get_device(void *obj, const char *device)
     50{
     51    QRaspi2Machine *machine = obj;
     52    if (!g_strcmp0(device, "generic-sdhci")) {
     53        return &machine->sdhci.obj;
     54    }
     55
     56    fprintf(stderr, "%s not present in arm/raspi2b\n", device);
     57    g_assert_not_reached();
     58}
     59
     60static void raspi2_destructor(QOSGraphObject *obj)
     61{
     62    QRaspi2Machine *machine = (QRaspi2Machine *) obj;
     63    alloc_destroy(&machine->alloc);
     64}
     65
     66static void *qos_create_machine_arm_raspi2(QTestState *qts)
     67{
     68    QRaspi2Machine *machine = g_new0(QRaspi2Machine, 1);
     69
     70    alloc_init(&machine->alloc, 0,
     71               RASPI2_RAM_ADDR + (1 << 20),
     72               RASPI2_RAM_ADDR + RASPI2_RAM_SIZE,
     73               ARM_PAGE_SIZE);
     74    machine->obj.get_device = raspi2_get_device;
     75    machine->obj.get_driver = raspi2_get_driver;
     76    machine->obj.destructor = raspi2_destructor;
     77    qos_init_sdhci_mm(&machine->sdhci, qts, 0x3f300000, &(QSDHCIProperties) {
     78        .version = 3,
     79        .baseclock = 52,
     80        .capab.sdma = false,
     81        .capab.reg = 0x052134b4
     82    });
     83    return &machine->obj;
     84}
     85
     86static void raspi2_register_nodes(void)
     87{
     88    qos_node_create_machine("arm/raspi2b", qos_create_machine_arm_raspi2);
     89    qos_node_contains("arm/raspi2b", "generic-sdhci", NULL);
     90}
     91
     92libqos_init(raspi2_register_nodes);