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

i8254.h (2506B)

      1/*
      2 * QEMU 8253/8254 interval timer emulation
      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#ifndef HW_I8254_H
     26#define HW_I8254_H
     27
     28#include "hw/qdev-properties.h"
     29#include "hw/isa/isa.h"
     30#include "qapi/error.h"
     31#include "qom/object.h"
     32
     33#define PIT_FREQ 1193182
     34
     35typedef struct PITChannelInfo {
     36    int gate;
     37    int mode;
     38    int initial_count;
     39    int out;
     40} PITChannelInfo;
     41
     42#define TYPE_PIT_COMMON "pit-common"
     43OBJECT_DECLARE_TYPE(PITCommonState, PITCommonClass, PIT_COMMON)
     44
     45#define TYPE_I8254 "isa-pit"
     46#define TYPE_KVM_I8254 "kvm-pit"
     47
     48static inline ISADevice *i8254_pit_init(ISABus *bus, int base, int isa_irq,
     49                                        qemu_irq alt_irq)
     50{
     51    DeviceState *dev;
     52    ISADevice *d;
     53
     54    d = isa_new(TYPE_I8254);
     55    dev = DEVICE(d);
     56    qdev_prop_set_uint32(dev, "iobase", base);
     57    isa_realize_and_unref(d, bus, &error_fatal);
     58    qdev_connect_gpio_out(dev, 0,
     59                          isa_irq >= 0 ? isa_get_irq(d, isa_irq) : alt_irq);
     60
     61    return d;
     62}
     63
     64static inline ISADevice *kvm_pit_init(ISABus *bus, int base)
     65{
     66    DeviceState *dev;
     67    ISADevice *d;
     68
     69    d = isa_new(TYPE_KVM_I8254);
     70    dev = DEVICE(d);
     71    qdev_prop_set_uint32(dev, "iobase", base);
     72    isa_realize_and_unref(d, bus, &error_fatal);
     73
     74    return d;
     75}
     76
     77void pit_set_gate(ISADevice *dev, int channel, int val);
     78void pit_get_channel_info(ISADevice *dev, int channel, PITChannelInfo *info);
     79
     80#endif /* HW_I8254_H */