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storage-attributes.h (2388B)

      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     bool migration_enabled;
     29 };
     30 
     31 
     32 struct 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 
     47 typedef struct QEMUS390StAttribState QEMUS390StAttribState;
     48 DECLARE_INSTANCE_CHECKER(QEMUS390StAttribState, QEMU_S390_STATTRIB,
     49                          TYPE_QEMU_S390_STATTRIB)
     50 
     51 struct QEMUS390StAttribState {
     52     S390StAttribState parent_obj;
     53 };
     54 
     55 typedef struct KVMS390StAttribState KVMS390StAttribState;
     56 DECLARE_INSTANCE_CHECKER(KVMS390StAttribState, KVM_S390_STATTRIB,
     57                          TYPE_KVM_S390_STATTRIB)
     58 
     59 struct KVMS390StAttribState {
     60     S390StAttribState parent_obj;
     61     uint64_t still_dirty;
     62     uint8_t *incoming_buffer;
     63 };
     64 
     65 void s390_stattrib_init(void);
     66 
     67 #ifdef CONFIG_KVM
     68 Object *kvm_s390_stattrib_create(void);
     69 #else
     70 static inline Object *kvm_s390_stattrib_create(void)
     71 {
     72     return NULL;
     73 }
     74 #endif
     75 
     76 void hmp_info_cmma(Monitor *mon, const QDict *qdict);
     77 void hmp_migrationmode(Monitor *mon, const QDict *qdict);
     78 
     79 #endif /* S390_STORAGE_ATTRIBUTES_H */