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

aspeed_timer.h (2153B)

      1/*
      2 *  ASPEED AST2400 Timer
      3 *
      4 *  Andrew Jeffery <andrew@aj.id.au>
      5 *
      6 *  Copyright (C) 2016 IBM Corp.
      7 *
      8 *  This program is free software; you can redistribute it and/or modify
      9 *  it under the terms of the GNU General Public License as published by
     10 *  the Free Software Foundation; either version 2 of the License, or
     11 *  (at your option) any later version.
     12 *
     13 *  This program is distributed in the hope that it will be useful,
     14 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     15 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16 *  GNU General Public License for more details.
     17 *
     18 *  You should have received a copy of the GNU General Public License along
     19 *  with this program; if not, write to the Free Software Foundation, Inc.,
     20 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
     21 */
     22#ifndef ASPEED_TIMER_H
     23#define ASPEED_TIMER_H
     24
     25#include "qemu/timer.h"
     26#include "hw/misc/aspeed_scu.h"
     27#include "qom/object.h"
     28
     29#define TYPE_ASPEED_TIMER "aspeed.timer"
     30OBJECT_DECLARE_TYPE(AspeedTimerCtrlState, AspeedTimerClass, ASPEED_TIMER)
     31#define TYPE_ASPEED_2400_TIMER TYPE_ASPEED_TIMER "-ast2400"
     32#define TYPE_ASPEED_2500_TIMER TYPE_ASPEED_TIMER "-ast2500"
     33#define TYPE_ASPEED_2600_TIMER TYPE_ASPEED_TIMER "-ast2600"
     34
     35#define ASPEED_TIMER_NR_TIMERS 8
     36
     37typedef struct AspeedTimer {
     38    qemu_irq irq;
     39
     40    uint8_t id;
     41    QEMUTimer timer;
     42
     43    /**
     44     * Track the line level as the ASPEED timers implement edge triggered
     45     * interrupts, signalling with both the rising and falling edge.
     46     */
     47    int32_t level;
     48    uint32_t reload;
     49    uint32_t match[2];
     50    uint64_t start;
     51} AspeedTimer;
     52
     53struct AspeedTimerCtrlState {
     54    /*< private >*/
     55    SysBusDevice parent;
     56
     57    /*< public >*/
     58    MemoryRegion iomem;
     59
     60    uint32_t ctrl;
     61    uint32_t ctrl2;
     62    uint32_t ctrl3;
     63    uint32_t irq_sts;
     64    AspeedTimer timers[ASPEED_TIMER_NR_TIMERS];
     65
     66    AspeedSCUState *scu;
     67};
     68
     69
     70struct AspeedTimerClass {
     71    SysBusDeviceClass parent_class;
     72
     73    uint64_t (*read)(AspeedTimerCtrlState *s, hwaddr offset);
     74    void (*write)(AspeedTimerCtrlState *s, hwaddr offset, uint64_t value);
     75};
     76
     77#endif /* ASPEED_TIMER_H */