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/*
* Copyright (C) 2020 EPAM Systems Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; version 2.1 only. with the special
* exception on linking described in file LICENSE.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*/
#include "libxl_internal.h"
static int libxl__device_virtio_disk_setdefault(libxl__gc *gc, uint32_t domid,
libxl_device_virtio_disk *virtio_disk,
bool hotplug)
{
return libxl__resolve_domid(gc, virtio_disk->backend_domname,
&virtio_disk->backend_domid);
}
static int libxl__virtio_disk_from_xenstore(libxl__gc *gc, const char *libxl_path,
libxl_devid devid,
libxl_device_virtio_disk *virtio_disk)
{
const char *be_path;
int rc;
virtio_disk->devid = devid;
rc = libxl__xs_read_mandatory(gc, XBT_NULL,
GCSPRINTF("%s/backend", libxl_path),
&be_path);
if (rc) return rc;
rc = libxl__backendpath_parse_domid(gc, be_path, &virtio_disk->backend_domid);
if (rc) return rc;
return 0;
}
static void libxl__update_config_virtio_disk(libxl__gc *gc,
libxl_device_virtio_disk *dst,
libxl_device_virtio_disk *src)
{
dst->devid = src->devid;
}
static int libxl_device_virtio_disk_compare(libxl_device_virtio_disk *d1,
libxl_device_virtio_disk *d2)
{
return COMPARE_DEVID(d1, d2);
}
static void libxl__device_virtio_disk_add(libxl__egc *egc, uint32_t domid,
libxl_device_virtio_disk *virtio_disk,
libxl__ao_device *aodev)
{
libxl__device_add_async(egc, domid, &libxl__virtio_disk_devtype, virtio_disk, aodev);
}
static int libxl__set_xenstore_virtio_disk(libxl__gc *gc, uint32_t domid,
libxl_device_virtio_disk *virtio_disk,
flexarray_t *back, flexarray_t *front,
flexarray_t *ro_front)
{
int rc;
unsigned int i;
for (i = 0; i < virtio_disk->num_disks; i++) {
rc = flexarray_append_pair(ro_front, GCSPRINTF("%d/filename", i),
GCSPRINTF("%s", virtio_disk->disks[i].filename));
if (rc) return rc;
rc = flexarray_append_pair(ro_front, GCSPRINTF("%d/readonly", i),
GCSPRINTF("%d", virtio_disk->disks[i].readonly));
if (rc) return rc;
rc = flexarray_append_pair(ro_front, GCSPRINTF("%d/base", i),
GCSPRINTF("%lu", virtio_disk->disks[i].base));
if (rc) return rc;
rc = flexarray_append_pair(ro_front, GCSPRINTF("%d/irq", i),
GCSPRINTF("%u", virtio_disk->disks[i].irq));
if (rc) return rc;
}
return 0;
}
static LIBXL_DEFINE_UPDATE_DEVID(virtio_disk)
static LIBXL_DEFINE_DEVICE_FROM_TYPE(virtio_disk)
static LIBXL_DEFINE_DEVICES_ADD(virtio_disk)
DEFINE_DEVICE_TYPE_STRUCT(virtio_disk, VIRTIO_DISK, virtio_disks,
.update_config = (device_update_config_fn_t) libxl__update_config_virtio_disk,
.from_xenstore = (device_from_xenstore_fn_t) libxl__virtio_disk_from_xenstore,
.set_xenstore_config = (device_set_xenstore_config_fn_t) libxl__set_xenstore_virtio_disk
);
/*
* Local variables:
* mode: C
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/
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