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
  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
  25 typedef 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
  36 typedef 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
  54 typedef 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
  61 typedef struct KVMS390StAttribState {
  62     S390StAttribState parent_obj;
  63     uint64_t still_dirty;
  64     uint8_t *incoming_buffer;
  65 } KVMS390StAttribState;
  66
  67 void s390_stattrib_init(void);
  68
  69 #ifdef CONFIG_KVM
  70 Object *kvm_s390_stattrib_create(void);
  71 #else
  72 static inline Object *kvm_s390_stattrib_create(void)
  73 {
  74     return NULL;
  75 }
  76 #endif
  77
  78 void hmp_info_cmma(Monitor *mon, const QDict *qdict);
  79 void hmp_migrationmode(Monitor *mon, const QDict *qdict);
  80
  81 #endif /* S390_STORAGE_ATTRIBUTES_H */