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517ff12c7d
Let's vmstatify virtio_ccw_save_config and virtio_ccw_load_config for flexibility (extending using subsections) and for fun. To achieve this we need to hack the config_vector, which is VirtIODevice (that is common virtio) state, in the middle of the VirtioCcwDevice state representation. This is somewhat ugly, but we have no choice because the stream format needs to be preserved. Almost no changes in behavior. Exception is everything that comes with vmstate like extra bookkeeping about what's in the stream, and maybe some extra checks and better error reporting. Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Message-Id: <20170703213414.94298-1-pasic@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/*
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* QEMU S390x floating interrupt controller (flic)
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*
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* Copyright 2014 IBM Corp.
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* Author(s): Jens Freimann <jfrei@linux.vnet.ibm.com>
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* Cornelia Huck <cornelia.huck@de.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 HW_S390_FLIC_H
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#define HW_S390_FLIC_H
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#include "hw/sysbus.h"
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#include "hw/s390x/adapter.h"
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#include "hw/virtio/virtio.h"
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/*
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* Reserve enough gsis to accommodate all virtio devices.
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* If any other user of adapter routes needs more of these,
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* we need to bump the value; but virtio looks like the
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* maximum right now.
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*/
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#define ADAPTER_ROUTES_MAX_GSI VIRTIO_QUEUE_MAX
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typedef struct AdapterRoutes {
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AdapterInfo adapter;
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int num_routes;
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int gsi[ADAPTER_ROUTES_MAX_GSI];
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} AdapterRoutes;
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extern const VMStateDescription vmstate_adapter_routes;
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#define VMSTATE_ADAPTER_ROUTES(_f, _s) \
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VMSTATE_STRUCT(_f, _s, 1, vmstate_adapter_routes, AdapterRoutes)
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#define TYPE_S390_FLIC_COMMON "s390-flic"
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#define S390_FLIC_COMMON(obj) \
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OBJECT_CHECK(S390FLICState, (obj), TYPE_S390_FLIC_COMMON)
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typedef struct S390FLICState {
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SysBusDevice parent_obj;
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/* to limit AdapterRoutes.num_routes for compat */
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uint32_t adapter_routes_max_batch;
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} S390FLICState;
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#define S390_FLIC_COMMON_CLASS(klass) \
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OBJECT_CLASS_CHECK(S390FLICStateClass, (klass), TYPE_S390_FLIC_COMMON)
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#define S390_FLIC_COMMON_GET_CLASS(obj) \
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OBJECT_GET_CLASS(S390FLICStateClass, (obj), TYPE_S390_FLIC_COMMON)
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typedef struct S390FLICStateClass {
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DeviceClass parent_class;
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int (*register_io_adapter)(S390FLICState *fs, uint32_t id, uint8_t isc,
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bool swap, bool maskable);
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int (*io_adapter_map)(S390FLICState *fs, uint32_t id, uint64_t map_addr,
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bool do_map);
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int (*add_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
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void (*release_adapter_routes)(S390FLICState *fs, AdapterRoutes *routes);
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int (*clear_io_irq)(S390FLICState *fs, uint16_t subchannel_id,
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uint16_t subchannel_nr);
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} S390FLICStateClass;
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#define TYPE_KVM_S390_FLIC "s390-flic-kvm"
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#define KVM_S390_FLIC(obj) \
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OBJECT_CHECK(KVMS390FLICState, (obj), TYPE_KVM_S390_FLIC)
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#define TYPE_QEMU_S390_FLIC "s390-flic-qemu"
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#define QEMU_S390_FLIC(obj) \
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OBJECT_CHECK(QEMUS390FLICState, (obj), TYPE_QEMU_S390_FLIC)
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typedef struct QEMUS390FLICState {
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S390FLICState parent_obj;
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} QEMUS390FLICState;
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void s390_flic_init(void);
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S390FLICState *s390_get_flic(void);
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#ifdef CONFIG_KVM
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DeviceState *s390_flic_kvm_create(void);
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#else
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static inline DeviceState *s390_flic_kvm_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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#endif /* HW_S390_FLIC_H */
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