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-core.h"
  16#include "monitor/monitor.h"
  17#include "qom/object.h"
  18
  19#define TYPE_S390_STATTRIB "s390-storage_attributes"
  20#define TYPE_QEMU_S390_STATTRIB "s390-storage_attributes-qemu"
  21#define TYPE_KVM_S390_STATTRIB "s390-storage_attributes-kvm"
  22
  23OBJECT_DECLARE_TYPE(S390StAttribState, S390StAttribClass, S390_STATTRIB)
  24
  25struct S390StAttribState {
  26    DeviceState parent_obj;
  27    uint64_t migration_cur_gfn;
  28    bool migration_enabled;
  29};
  30
  31
  32struct S390StAttribClass {
  33    DeviceClass parent_class;
  34    /* Return value: < 0 on error, or new count */
  35    int (*get_stattr)(S390StAttribState *sa, uint64_t *start_gfn,
  36                      uint32_t count, uint8_t *values);
  37    int (*peek_stattr)(S390StAttribState *sa, uint64_t start_gfn,
  38                       uint32_t count, uint8_t *values);
  39    int (*set_stattr)(S390StAttribState *sa, uint64_t start_gfn,
  40                      uint32_t count, uint8_t *values);
  41    void (*synchronize)(S390StAttribState *sa);
  42    int (*set_migrationmode)(S390StAttribState *sa, bool value);
  43    int (*get_active)(S390StAttribState *sa);
  44    long long (*get_dirtycount)(S390StAttribState *sa);
  45};
  46
  47typedef struct QEMUS390StAttribState QEMUS390StAttribState;
  48DECLARE_INSTANCE_CHECKER(QEMUS390StAttribState, QEMU_S390_STATTRIB,
  49                         TYPE_QEMU_S390_STATTRIB)
  50
  51struct QEMUS390StAttribState {
  52    S390StAttribState parent_obj;
  53};
  54
  55typedef struct KVMS390StAttribState KVMS390StAttribState;
  56DECLARE_INSTANCE_CHECKER(KVMS390StAttribState, KVM_S390_STATTRIB,
  57                         TYPE_KVM_S390_STATTRIB)
  58
  59struct KVMS390StAttribState {
  60    S390StAttribState parent_obj;
  61    uint64_t still_dirty;
  62    uint8_t *incoming_buffer;
  63};
  64
  65void s390_stattrib_init(void);
  66
  67#ifdef CONFIG_KVM
  68Object *kvm_s390_stattrib_create(void);
  69#else
  70static inline Object *kvm_s390_stattrib_create(void)
  71{
  72    return NULL;
  73}
  74#endif
  75
  76void hmp_info_cmma(Monitor *mon, const QDict *qdict);
  77void hmp_migrationmode(Monitor *mon, const QDict *qdict);
  78
  79#endif /* S390_STORAGE_ATTRIBUTES_H */
  80