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authorClaudio Imbrenda <imbrenda@linux.vnet.ibm.com>2016-08-15 18:43:14 +0200
committerChristian Borntraeger <borntraeger@de.ibm.com>2017-07-14 12:29:47 +0200
commit903fd80b03243476a97522b79d4a7c8546dfe3df (patch)
tree2b9df26b330e6e77a71b52e42a6564daf54474dd /include
parent3272f0e22fefa4a364cdbdb01975f9178177ab37 (diff)
s390x/migration: Storage attributes device
Storage attributes device, like we have for storage keys. Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'include')
-rw-r--r--include/hw/s390x/storage-attributes.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/include/hw/s390x/storage-attributes.h b/include/hw/s390x/storage-attributes.h
new file mode 100644
index 0000000000..678df958e8
--- /dev/null
+++ b/include/hw/s390x/storage-attributes.h
@@ -0,0 +1,77 @@
+/*
+ * s390 storage attributes device
+ *
+ * Copyright 2016 IBM Corp.
+ * Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or (at
+ * your option) any later version. See the COPYING file in the top-level
+ * directory.
+ */
+
+#ifndef S390_STORAGE_ATTRIBUTES_H
+#define S390_STORAGE_ATTRIBUTES_H
+
+#include <hw/qdev.h>
+
+#define TYPE_S390_STATTRIB "s390-storage_attributes"
+#define TYPE_QEMU_S390_STATTRIB "s390-storage_attributes-qemu"
+#define TYPE_KVM_S390_STATTRIB "s390-storage_attributes-kvm"
+
+#define S390_STATTRIB(obj) \
+ OBJECT_CHECK(S390StAttribState, (obj), TYPE_S390_STATTRIB)
+
+typedef struct S390StAttribState {
+ DeviceState parent_obj;
+ uint64_t migration_cur_gfn;
+ bool migration_enabled;
+} S390StAttribState;
+
+#define S390_STATTRIB_CLASS(klass) \
+ OBJECT_CLASS_CHECK(S390StAttribClass, (klass), TYPE_S390_STATTRIB)
+#define S390_STATTRIB_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(S390StAttribClass, (obj), TYPE_S390_STATTRIB)
+
+typedef struct S390StAttribClass {
+ DeviceClass parent_class;
+ /* Return value: < 0 on error, or new count */
+ int (*get_stattr)(S390StAttribState *sa, uint64_t *start_gfn,
+ uint32_t count, uint8_t *values);
+ int (*peek_stattr)(S390StAttribState *sa, uint64_t start_gfn,
+ uint32_t count, uint8_t *values);
+ int (*set_stattr)(S390StAttribState *sa, uint64_t start_gfn,
+ uint32_t count, uint8_t *values);
+ void (*synchronize)(S390StAttribState *sa);
+ int (*set_migrationmode)(S390StAttribState *sa, bool value);
+ int (*get_active)(S390StAttribState *sa);
+ long long (*get_dirtycount)(S390StAttribState *sa);
+} S390StAttribClass;
+
+#define QEMU_S390_STATTRIB(obj) \
+ OBJECT_CHECK(QEMUS390StAttribState, (obj), TYPE_QEMU_S390_STATTRIB)
+
+typedef struct QEMUS390StAttribState {
+ S390StAttribState parent_obj;
+} QEMUS390StAttribState;
+
+#define KVM_S390_STATTRIB(obj) \
+ OBJECT_CHECK(KVMS390StAttribState, (obj), TYPE_KVM_S390_STATTRIB)
+
+typedef struct KVMS390StAttribState {
+ S390StAttribState parent_obj;
+ uint64_t still_dirty;
+ uint8_t *incoming_buffer;
+} KVMS390StAttribState;
+
+void s390_stattrib_init(void);
+
+#ifdef CONFIG_KVM
+Object *kvm_s390_stattrib_create(void);
+#else
+static inline Object *kvm_s390_stattrib_create(void)
+{
+ return NULL;
+}
+#endif
+
+#endif /* S390_STORAGE_ATTRIBUTES_H */