f12c1ebddf
This commit introduces a vhost-user device for SCSI. This is based
on the existing vhost-scsi implementation, but done over vhost-user
instead. It also uses a chardev to connect to the backend. Unlike
vhost-scsi (today), VMs using vhost-user-scsi can be live migrated.
To use it, start Qemu with a command line equivalent to:
qemu-system-x86_64 \
-chardev socket,id=vus0,path=/tmp/vus.sock \
-device vhost-user-scsi-pci,chardev=vus0,bus=pci.0,addr=...
A separate commit presents a sample application linked with libiscsi to
provide a backend for vhost-user-scsi.
Signed-off-by: Felipe Franciosi <felipe@nutanix.com>
Message-Id: <1488479153-21203-4-git-send-email-felipe@nutanix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
36 lines
890 B
C
36 lines
890 B
C
/*
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* vhost-user-scsi host device
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*
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* Copyright (c) 2016 Nutanix Inc. All rights reserved.
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*
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* Author:
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* Felipe Franciosi <felipe@nutanix.com>
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*
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* This file is largely based on "vhost-scsi.h" by:
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* Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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#ifndef VHOST_USER_SCSI_H
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#define VHOST_USER_SCSI_H
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#include "qemu-common.h"
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#include "hw/qdev.h"
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#include "hw/virtio/virtio-scsi.h"
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#include "hw/virtio/vhost.h"
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#include "hw/virtio/vhost-scsi-common.h"
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#define TYPE_VHOST_USER_SCSI "vhost-user-scsi"
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#define VHOST_USER_SCSI(obj) \
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OBJECT_CHECK(VHostUserSCSI, (obj), TYPE_VHOST_USER_SCSI)
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typedef struct VHostUserSCSI {
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VHostSCSICommon parent_obj;
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uint64_t host_features;
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} VHostUserSCSI;
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#endif /* VHOST_USER_SCSI_H */
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