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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ne2000-isa.c (4859B)

      1/*
      2 * QEMU NE2000 emulation -- isa bus windup
      3 *
      4 * Copyright (c) 2003-2004 Fabrice Bellard
      5 *
      6 * Permission is hereby granted, free of charge, to any person obtaining a copy
      7 * of this software and associated documentation files (the "Software"), to deal
      8 * in the Software without restriction, including without limitation the rights
      9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     10 * copies of the Software, and to permit persons to whom the Software is
     11 * furnished to do so, subject to the following conditions:
     12 *
     13 * The above copyright notice and this permission notice shall be included in
     14 * all copies or substantial portions of the Software.
     15 *
     16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
     22 * THE SOFTWARE.
     23 */
     24
     25#include "qemu/osdep.h"
     26#include "hw/isa/isa.h"
     27#include "hw/net/ne2000-isa.h"
     28#include "migration/vmstate.h"
     29#include "ne2000.h"
     30#include "sysemu/sysemu.h"
     31#include "qapi/error.h"
     32#include "qapi/visitor.h"
     33#include "qemu/module.h"
     34#include "qom/object.h"
     35
     36OBJECT_DECLARE_SIMPLE_TYPE(ISANE2000State, ISA_NE2000)
     37
     38struct ISANE2000State {
     39    ISADevice parent_obj;
     40
     41    uint32_t iobase;
     42    uint32_t isairq;
     43    NE2000State ne2000;
     44};
     45
     46static NetClientInfo net_ne2000_isa_info = {
     47    .type = NET_CLIENT_DRIVER_NIC,
     48    .size = sizeof(NICState),
     49    .receive = ne2000_receive,
     50};
     51
     52static const VMStateDescription vmstate_isa_ne2000 = {
     53    .name = "ne2000",
     54    .version_id = 2,
     55    .minimum_version_id = 0,
     56    .fields = (VMStateField[]) {
     57        VMSTATE_STRUCT(ne2000, ISANE2000State, 0, vmstate_ne2000, NE2000State),
     58        VMSTATE_END_OF_LIST()
     59    }
     60};
     61
     62static void isa_ne2000_realizefn(DeviceState *dev, Error **errp)
     63{
     64    ISADevice *isadev = ISA_DEVICE(dev);
     65    ISANE2000State *isa = ISA_NE2000(dev);
     66    NE2000State *s = &isa->ne2000;
     67
     68    ne2000_setup_io(s, DEVICE(isadev), 0x20);
     69    isa_register_ioport(isadev, &s->io, isa->iobase);
     70
     71    isa_init_irq(isadev, &s->irq, isa->isairq);
     72
     73    qemu_macaddr_default_if_unset(&s->c.macaddr);
     74    ne2000_reset(s);
     75
     76    s->nic = qemu_new_nic(&net_ne2000_isa_info, &s->c,
     77                          object_get_typename(OBJECT(dev)), dev->id, s);
     78    qemu_format_nic_info_str(qemu_get_queue(s->nic), s->c.macaddr.a);
     79}
     80
     81static Property ne2000_isa_properties[] = {
     82    DEFINE_PROP_UINT32("iobase", ISANE2000State, iobase, 0x300),
     83    DEFINE_PROP_UINT32("irq",   ISANE2000State, isairq, 9),
     84    DEFINE_NIC_PROPERTIES(ISANE2000State, ne2000.c),
     85    DEFINE_PROP_END_OF_LIST(),
     86};
     87
     88static void isa_ne2000_class_initfn(ObjectClass *klass, void *data)
     89{
     90    DeviceClass *dc = DEVICE_CLASS(klass);
     91
     92    dc->realize = isa_ne2000_realizefn;
     93    device_class_set_props(dc, ne2000_isa_properties);
     94    dc->vmsd = &vmstate_isa_ne2000;
     95    set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
     96}
     97
     98static void isa_ne2000_get_bootindex(Object *obj, Visitor *v,
     99                                     const char *name, void *opaque,
    100                                     Error **errp)
    101{
    102    ISANE2000State *isa = ISA_NE2000(obj);
    103    NE2000State *s = &isa->ne2000;
    104
    105    visit_type_int32(v, name, &s->c.bootindex, errp);
    106}
    107
    108static void isa_ne2000_set_bootindex(Object *obj, Visitor *v,
    109                                     const char *name, void *opaque,
    110                                     Error **errp)
    111{
    112    ISANE2000State *isa = ISA_NE2000(obj);
    113    NE2000State *s = &isa->ne2000;
    114    int32_t boot_index;
    115    Error *local_err = NULL;
    116
    117    if (!visit_type_int32(v, name, &boot_index, errp)) {
    118        return;
    119    }
    120    /* check whether bootindex is present in fw_boot_order list  */
    121    check_boot_index(boot_index, &local_err);
    122    if (local_err) {
    123        goto out;
    124    }
    125    /* change bootindex to a new one */
    126    s->c.bootindex = boot_index;
    127
    128out:
    129    error_propagate(errp, local_err);
    130}
    131
    132static void isa_ne2000_instance_init(Object *obj)
    133{
    134    object_property_add(obj, "bootindex", "int32",
    135                        isa_ne2000_get_bootindex,
    136                        isa_ne2000_set_bootindex, NULL, NULL);
    137    object_property_set_int(obj, "bootindex", -1, NULL);
    138}
    139static const TypeInfo ne2000_isa_info = {
    140    .name          = TYPE_ISA_NE2000,
    141    .parent        = TYPE_ISA_DEVICE,
    142    .instance_size = sizeof(ISANE2000State),
    143    .class_init    = isa_ne2000_class_initfn,
    144    .instance_init = isa_ne2000_instance_init,
    145};
    146
    147static void ne2000_isa_register_types(void)
    148{
    149    type_register_static(&ne2000_isa_info);
    150}
    151
    152type_init(ne2000_isa_register_types)