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