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

tod.h (1307B)

      1/*
      2 * TOD (Time Of Day) clock
      3 *
      4 * Copyright 2018 Red Hat, Inc.
      5 * Author(s): David Hildenbrand <david@redhat.com>
      6 *
      7 * This work is licensed under the terms of the GNU GPL, version 2 or later.
      8 * See the COPYING file in the top-level directory.
      9 */
     10
     11#ifndef HW_S390_TOD_H
     12#define HW_S390_TOD_H
     13
     14#include "hw/qdev-core.h"
     15#include "tcg/s390-tod.h"
     16#include "qom/object.h"
     17
     18typedef struct S390TOD {
     19    uint8_t high;
     20    uint64_t low;
     21} S390TOD;
     22
     23#define TYPE_S390_TOD "s390-tod"
     24OBJECT_DECLARE_TYPE(S390TODState, S390TODClass, S390_TOD)
     25#define TYPE_KVM_S390_TOD TYPE_S390_TOD "-kvm"
     26#define TYPE_QEMU_S390_TOD TYPE_S390_TOD "-qemu"
     27
     28struct S390TODState {
     29    /* private */
     30    DeviceState parent_obj;
     31
     32    /*
     33     * Used by TCG to remember the time base. Used by KVM to backup the TOD
     34     * while the TOD is stopped.
     35     */
     36    S390TOD base;
     37    /* Used by KVM to remember if the TOD is stopped and base is valid. */
     38    bool stopped;
     39};
     40
     41struct S390TODClass {
     42    /* private */
     43    DeviceClass parent_class;
     44    void (*parent_realize)(DeviceState *dev, Error **errp);
     45
     46    /* public */
     47    void (*get)(const S390TODState *td, S390TOD *tod, Error **errp);
     48    void (*set)(S390TODState *td, const S390TOD *tod, Error **errp);
     49};
     50
     51void s390_init_tod(void);
     52S390TODState *s390_get_todstate(void);
     53
     54#endif