LXR qemu/include/hw/s390x/storage-attributes.h

   1/*
   2 * s390 storage attributes device
   3 *
   4 * Copyright 2016 IBM Corp.
   5 * Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
   6 *
   7 * This work is licensed under the terms of the GNU GPL, version 2 or (at
   8 * your option) any later version. See the COPYING file in the top-level
   9 * directory.
  10 */
  11
  12#ifndef S390_STORAGE_ATTRIBUTES_H
  13#define S390_STORAGE_ATTRIBUTES_H
  14
  15#include "hw/qdev.h"
  16#include "monitor/monitor.h"
  17
  18#define TYPE_S390_STATTRIB "s390-storage_attributes"
  19#define TYPE_QEMU_S390_STATTRIB "s390-storage_attributes-qemu"
  20#define TYPE_KVM_S390_STATTRIB "s390-storage_attributes-kvm"
  21
  22#define S390_STATTRIB(obj) \
  23    OBJECT_CHECK(S390StAttribState, (obj), TYPE_S390_STATTRIB)
  24
  25typedef struct S390StAttribState {
  26    DeviceState parent_obj;
  27    uint64_t migration_cur_gfn;
  28    bool migration_enabled;
  29} S390StAttribState;
  30
  31#define S390_STATTRIB_CLASS(klass) \
  32    OBJECT_CLASS_CHECK(S390StAttribClass, (klass), TYPE_S390_STATTRIB)
  33#define S390_STATTRIB_GET_CLASS(obj) \
  34    OBJECT_GET_CLASS(S390StAttribClass, (obj), TYPE_S390_STATTRIB)
  35
  36typedef struct S390StAttribClass {
  37    DeviceClass parent_class;
  38    /* Return value: < 0 on error, or new count */
  39    int (*get_stattr)(S390StAttribState *sa, uint64_t *start_gfn,
  40                      uint32_t count, uint8_t *values);
  41    int (*peek_stattr)(S390StAttribState *sa, uint64_t start_gfn,
  42                       uint32_t count, uint8_t *values);
  43    int (*set_stattr)(S390StAttribState *sa, uint64_t start_gfn,
  44                      uint32_t count, uint8_t *values);
  45    void (*synchronize)(S390StAttribState *sa);
  46    int (*set_migrationmode)(S390StAttribState *sa, bool value);
  47    int (*get_active)(S390StAttribState *sa);
  48    long long (*get_dirtycount)(S390StAttribState *sa);
  49} S390StAttribClass;
  50
  51#define QEMU_S390_STATTRIB(obj) \
  52    OBJECT_CHECK(QEMUS390StAttribState, (obj), TYPE_QEMU_S390_STATTRIB)
  53
  54typedef struct QEMUS390StAttribState {
  55    S390StAttribState parent_obj;
  56} QEMUS390StAttribState;
  57
  58#define KVM_S390_STATTRIB(obj) \
  59    OBJECT_CHECK(KVMS390StAttribState, (obj), TYPE_KVM_S390_STATTRIB)
  60
  61typedef struct KVMS390StAttribState {
  62    S390StAttribState parent_obj;
  63    uint64_t still_dirty;
  64    uint8_t *incoming_buffer;
  65} KVMS390StAttribState;
  66
  67void s390_stattrib_init(void);
  68
  69#ifdef CONFIG_KVM
  70Object *kvm_s390_stattrib_create(void);
  71#else
  72static inline Object *kvm_s390_stattrib_create(void)
  73{
  74    return NULL;
  75}
  76#endif
  77
  78void hmp_info_cmma(Monitor *mon, const QDict *qdict);
  79void hmp_migrationmode(Monitor *mon, const QDict *qdict);
  80
  81#endif /* S390_STORAGE_ATTRIBUTES_H */
  82