e86f243487
This will prepare ground for future changes adding an Error** argument to the save_setup() handler. We need to make sure that on failure, set_migrationmode() always sets a new error. See the Rules section in qapi/error.h. Cc: Halil Pasic <pasic@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@linux.ibm.com> Cc: Thomas Huth <thuth@redhat.com> Reviewed-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Cédric Le Goater <clg@redhat.com> Link: https://lore.kernel.org/r/20240320064911.545001-2-clg@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/*
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* s390 storage attributes device
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*
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* Copyright 2016 IBM Corp.
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* Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or (at
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* your option) any later version. See the COPYING file in the top-level
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* directory.
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*/
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#ifndef S390_STORAGE_ATTRIBUTES_H
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#define S390_STORAGE_ATTRIBUTES_H
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#include "hw/qdev-core.h"
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#include "monitor/monitor.h"
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#include "qom/object.h"
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#define TYPE_S390_STATTRIB "s390-storage_attributes"
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#define TYPE_QEMU_S390_STATTRIB "s390-storage_attributes-qemu"
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#define TYPE_KVM_S390_STATTRIB "s390-storage_attributes-kvm"
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OBJECT_DECLARE_TYPE(S390StAttribState, S390StAttribClass, S390_STATTRIB)
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struct S390StAttribState {
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DeviceState parent_obj;
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uint64_t migration_cur_gfn;
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bool migration_enabled;
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};
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struct S390StAttribClass {
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DeviceClass parent_class;
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/* Return value: < 0 on error, or new count */
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int (*get_stattr)(S390StAttribState *sa, uint64_t *start_gfn,
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uint32_t count, uint8_t *values);
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int (*peek_stattr)(S390StAttribState *sa, uint64_t start_gfn,
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uint32_t count, uint8_t *values);
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int (*set_stattr)(S390StAttribState *sa, uint64_t start_gfn,
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uint32_t count, uint8_t *values);
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void (*synchronize)(S390StAttribState *sa);
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int (*set_migrationmode)(S390StAttribState *sa, bool value, Error **errp);
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int (*get_active)(S390StAttribState *sa);
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long long (*get_dirtycount)(S390StAttribState *sa);
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};
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typedef struct QEMUS390StAttribState QEMUS390StAttribState;
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DECLARE_INSTANCE_CHECKER(QEMUS390StAttribState, QEMU_S390_STATTRIB,
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TYPE_QEMU_S390_STATTRIB)
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struct QEMUS390StAttribState {
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S390StAttribState parent_obj;
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};
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typedef struct KVMS390StAttribState KVMS390StAttribState;
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DECLARE_INSTANCE_CHECKER(KVMS390StAttribState, KVM_S390_STATTRIB,
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TYPE_KVM_S390_STATTRIB)
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struct KVMS390StAttribState {
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S390StAttribState parent_obj;
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uint64_t still_dirty;
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uint8_t *incoming_buffer;
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};
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void s390_stattrib_init(void);
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#ifdef CONFIG_KVM
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Object *kvm_s390_stattrib_create(void);
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#else
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static inline Object *kvm_s390_stattrib_create(void)
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{
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return NULL;
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}
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#endif
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void hmp_info_cmma(Monitor *mon, const QDict *qdict);
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void hmp_migrationmode(Monitor *mon, const QDict *qdict);
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#endif /* S390_STORAGE_ATTRIBUTES_H */
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