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

sse-timer.h (1300B)

      1/*
      2 * Arm SSE Subsystem System Timer
      3 *
      4 * Copyright (c) 2020 Linaro Limited
      5 * Written by Peter Maydell
      6 *
      7 * This program is free software; you can redistribute it and/or modify
      8 * it under the terms of the GNU General Public License version 2 or
      9 * (at your option) any later version.
     10 */
     11
     12/*
     13 * This is a model of the "System timer" which is documented in
     14 * the Arm SSE-123 Example Subsystem Technical Reference Manual:
     15 * https://developer.arm.com/documentation/101370/latest/
     16 *
     17 * QEMU interface:
     18 *  + QOM property "counter": link property to be set to the
     19 *    TYPE_SSE_COUNTER timestamp counter device this timer runs off
     20 *  + sysbus MMIO region 0: the register bank
     21 *  + sysbus IRQ 0: timer interrupt
     22 */
     23
     24#ifndef SSE_TIMER_H
     25#define SSE_TIMER_H
     26
     27#include "hw/sysbus.h"
     28#include "qom/object.h"
     29#include "hw/timer/sse-counter.h"
     30
     31#define TYPE_SSE_TIMER "sse-timer"
     32OBJECT_DECLARE_SIMPLE_TYPE(SSETimer, SSE_TIMER)
     33
     34struct SSETimer {
     35    /*< private >*/
     36    SysBusDevice parent_obj;
     37
     38    /*< public >*/
     39    MemoryRegion iomem;
     40    qemu_irq irq;
     41    SSECounter *counter;
     42    QEMUTimer timer;
     43    Notifier counter_notifier;
     44
     45    uint32_t cntfrq;
     46    uint32_t cntp_ctl;
     47    uint64_t cntp_cval;
     48    uint64_t cntp_aival;
     49    uint32_t cntp_aival_ctl;
     50    uint32_t cntp_aival_reload;
     51};
     52
     53#endif