xref: /qemu/include/hw/s390x/storage-attributes.h (revision 903fd80b03243476a97522b79d4a7c8546dfe3df) 
1*903fd80bSClaudio Imbrenda /*
2*903fd80bSClaudio Imbrenda  * s390 storage attributes device
3*903fd80bSClaudio Imbrenda  *
4*903fd80bSClaudio Imbrenda  * Copyright 2016 IBM Corp.
5*903fd80bSClaudio Imbrenda  * Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
6*903fd80bSClaudio Imbrenda  *
7*903fd80bSClaudio Imbrenda  * This work is licensed under the terms of the GNU GPL, version 2 or (at
8*903fd80bSClaudio Imbrenda  * your option) any later version. See the COPYING file in the top-level
9*903fd80bSClaudio Imbrenda  * directory.
10*903fd80bSClaudio Imbrenda  */
11*903fd80bSClaudio Imbrenda 
12*903fd80bSClaudio Imbrenda #ifndef S390_STORAGE_ATTRIBUTES_H
13*903fd80bSClaudio Imbrenda #define S390_STORAGE_ATTRIBUTES_H
14*903fd80bSClaudio Imbrenda 
15*903fd80bSClaudio Imbrenda #include <hw/qdev.h>
16*903fd80bSClaudio Imbrenda 
17*903fd80bSClaudio Imbrenda #define TYPE_S390_STATTRIB "s390-storage_attributes"
18*903fd80bSClaudio Imbrenda #define TYPE_QEMU_S390_STATTRIB "s390-storage_attributes-qemu"
19*903fd80bSClaudio Imbrenda #define TYPE_KVM_S390_STATTRIB "s390-storage_attributes-kvm"
20*903fd80bSClaudio Imbrenda 
21*903fd80bSClaudio Imbrenda #define S390_STATTRIB(obj) \
22*903fd80bSClaudio Imbrenda     OBJECT_CHECK(S390StAttribState, (obj), TYPE_S390_STATTRIB)
23*903fd80bSClaudio Imbrenda 
24*903fd80bSClaudio Imbrenda typedef struct S390StAttribState {
25*903fd80bSClaudio Imbrenda     DeviceState parent_obj;
26*903fd80bSClaudio Imbrenda     uint64_t migration_cur_gfn;
27*903fd80bSClaudio Imbrenda     bool migration_enabled;
28*903fd80bSClaudio Imbrenda } S390StAttribState;
29*903fd80bSClaudio Imbrenda 
30*903fd80bSClaudio Imbrenda #define S390_STATTRIB_CLASS(klass) \
31*903fd80bSClaudio Imbrenda     OBJECT_CLASS_CHECK(S390StAttribClass, (klass), TYPE_S390_STATTRIB)
32*903fd80bSClaudio Imbrenda #define S390_STATTRIB_GET_CLASS(obj) \
33*903fd80bSClaudio Imbrenda     OBJECT_GET_CLASS(S390StAttribClass, (obj), TYPE_S390_STATTRIB)
34*903fd80bSClaudio Imbrenda 
35*903fd80bSClaudio Imbrenda typedef struct S390StAttribClass {
36*903fd80bSClaudio Imbrenda     DeviceClass parent_class;
37*903fd80bSClaudio Imbrenda     /* Return value: < 0 on error, or new count */
38*903fd80bSClaudio Imbrenda     int (*get_stattr)(S390StAttribState *sa, uint64_t *start_gfn,
39*903fd80bSClaudio Imbrenda                       uint32_t count, uint8_t *values);
40*903fd80bSClaudio Imbrenda     int (*peek_stattr)(S390StAttribState *sa, uint64_t start_gfn,
41*903fd80bSClaudio Imbrenda                        uint32_t count, uint8_t *values);
42*903fd80bSClaudio Imbrenda     int (*set_stattr)(S390StAttribState *sa, uint64_t start_gfn,
43*903fd80bSClaudio Imbrenda                       uint32_t count, uint8_t *values);
44*903fd80bSClaudio Imbrenda     void (*synchronize)(S390StAttribState *sa);
45*903fd80bSClaudio Imbrenda     int (*set_migrationmode)(S390StAttribState *sa, bool value);
46*903fd80bSClaudio Imbrenda     int (*get_active)(S390StAttribState *sa);
47*903fd80bSClaudio Imbrenda     long long (*get_dirtycount)(S390StAttribState *sa);
48*903fd80bSClaudio Imbrenda } S390StAttribClass;
49*903fd80bSClaudio Imbrenda 
50*903fd80bSClaudio Imbrenda #define QEMU_S390_STATTRIB(obj) \
51*903fd80bSClaudio Imbrenda     OBJECT_CHECK(QEMUS390StAttribState, (obj), TYPE_QEMU_S390_STATTRIB)
52*903fd80bSClaudio Imbrenda 
53*903fd80bSClaudio Imbrenda typedef struct QEMUS390StAttribState {
54*903fd80bSClaudio Imbrenda     S390StAttribState parent_obj;
55*903fd80bSClaudio Imbrenda } QEMUS390StAttribState;
56*903fd80bSClaudio Imbrenda 
57*903fd80bSClaudio Imbrenda #define KVM_S390_STATTRIB(obj) \
58*903fd80bSClaudio Imbrenda     OBJECT_CHECK(KVMS390StAttribState, (obj), TYPE_KVM_S390_STATTRIB)
59*903fd80bSClaudio Imbrenda 
60*903fd80bSClaudio Imbrenda typedef struct KVMS390StAttribState {
61*903fd80bSClaudio Imbrenda     S390StAttribState parent_obj;
62*903fd80bSClaudio Imbrenda     uint64_t still_dirty;
63*903fd80bSClaudio Imbrenda     uint8_t *incoming_buffer;
64*903fd80bSClaudio Imbrenda } KVMS390StAttribState;
65*903fd80bSClaudio Imbrenda 
66*903fd80bSClaudio Imbrenda void s390_stattrib_init(void);
67*903fd80bSClaudio Imbrenda 
68*903fd80bSClaudio Imbrenda #ifdef CONFIG_KVM
69*903fd80bSClaudio Imbrenda Object *kvm_s390_stattrib_create(void);
70*903fd80bSClaudio Imbrenda #else
71*903fd80bSClaudio Imbrenda static inline Object *kvm_s390_stattrib_create(void)
72*903fd80bSClaudio Imbrenda {
73*903fd80bSClaudio Imbrenda     return NULL;
74*903fd80bSClaudio Imbrenda }
75*903fd80bSClaudio Imbrenda #endif
76*903fd80bSClaudio Imbrenda 
77*903fd80bSClaudio Imbrenda #endif /* S390_STORAGE_ATTRIBUTES_H */
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