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88d86f6f1e
Let's implement support for abstract virtio based memory devices, using the virtio-pci implementation as an orientation. Wire them up in the machine hotplug handler, taking care of s390x page size limitations. As we neither support virtio-mem or virtio-pmem yet, the code is effectively unused. We'll implement support for virtio-mem based on this next. Note that we won't wire up the virtio-pci variant (should currently be impossible due to lack of support for MSI-X), but we'll add a safety net to reject plugging them in the pre-plug handler. Message-ID: <20241219144115.2820241-14-david@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com>
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/*
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* Virtio CCW support for abstract virtio based memory device
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*
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* Copyright (C) 2024 Red Hat, Inc.
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*
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* Authors:
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* David Hildenbrand <david@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef HW_S390X_VIRTIO_CCW_MD_H
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#define HW_S390X_VIRTIO_CCW_MD_H
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#include "virtio-ccw.h"
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#include "qom/object.h"
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/*
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* virtio-md-ccw: This extends VirtioCcwDevice.
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*/
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#define TYPE_VIRTIO_MD_CCW "virtio-md-ccw"
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OBJECT_DECLARE_TYPE(VirtIOMDCcw, VirtIOMDCcwClass, VIRTIO_MD_CCW)
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struct VirtIOMDCcwClass {
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/* private */
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VirtIOCCWDeviceClass parent;
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/* public */
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void (*unplug_request_check)(VirtIOMDCcw *vmd, Error **errp);
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};
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struct VirtIOMDCcw {
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VirtioCcwDevice parent_obj;
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};
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void virtio_ccw_md_pre_plug(VirtIOMDCcw *vmd, MachineState *ms, Error **errp);
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void virtio_ccw_md_plug(VirtIOMDCcw *vmd, MachineState *ms, Error **errp);
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void virtio_ccw_md_unplug_request(VirtIOMDCcw *vmd, MachineState *ms,
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Error **errp);
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void virtio_ccw_md_unplug(VirtIOMDCcw *vmd, MachineState *ms, Error **errp);
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#endif /* HW_S390X_VIRTIO_CCW_MD_H */
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