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blockdev: Move virtio-blk device creation to drive_init 

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2013-09-13 14:09:17 +02:00
parent 87a899c509
commit 394c7d4d6b
1 changed files with 27 additions and 27 deletions
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54
blockdev.c
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@ -318,7 +318,6 @@ static DriveInfo *blockdev_init(QDict *bs_opts,
int ro = 0;
int bdrv_flags = 0;
int on_read_error, on_write_error;
const char *devaddr;
DriveInfo *dinfo;
ThrottleConfig cfg;
int snapshot = 0;
@ -468,20 +467,12 @@ static DriveInfo *blockdev_init(QDict *bs_opts,
}
}
if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
if (type != IF_VIRTIO) {
error_report("addr is not supported by this bus type");
return NULL;
}
}
/* init */
dinfo = g_malloc0(sizeof(*dinfo));
dinfo->id = g_strdup(qemu_opts_id(opts));
dinfo->bdrv = bdrv_new(dinfo->id);
dinfo->bdrv->open_flags = snapshot ? BDRV_O_SNAPSHOT : 0;
dinfo->bdrv->read_only = ro;
dinfo->devaddr = devaddr;
dinfo->type = type;
dinfo->refcount = 1;
if (serial != NULL) {
@ -508,22 +499,8 @@ static DriveInfo *blockdev_init(QDict *bs_opts,
case IF_FLOPPY:
case IF_PFLASH:
case IF_MTD:
break;
case IF_VIRTIO:
{
/* add virtio block device */
QemuOpts *devopts;
devopts = qemu_opts_create_nofail(qemu_find_opts("device"));
if (arch_type == QEMU_ARCH_S390X) {
qemu_opt_set(devopts, "driver", "virtio-blk-s390");
} else {
qemu_opt_set(devopts, "driver", "virtio-blk-pci");
}
qemu_opt_set(devopts, "drive", dinfo->id);
if (devaddr)
qemu_opt_set(devopts, "addr", devaddr);
break;
}
default:
abort();
}
@ -647,6 +624,10 @@ QemuOptsList qemu_legacy_drive_opts = {
.name = "boot",
.type = QEMU_OPT_BOOL,
.help = "(deprecated, ignored)",
},{
.name = "addr",
.type = QEMU_OPT_STRING,
.help = "pci address (virtio only)",
},
{ /* end of list */ }
},
@ -662,6 +643,7 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
BlockInterfaceType type;
int cyls, heads, secs, translation;
int max_devs, bus_id, unit_id, index;
const char *devaddr;
Error *local_err = NULL;
/* Change legacy command line options into QMP ones */
@ -862,6 +844,27 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
g_free(new_id);
}
/* Add virtio block device */
devaddr = qemu_opt_get(legacy_opts, "addr");
if (devaddr && type != IF_VIRTIO) {
error_report("addr is not supported by this bus type");
goto fail;
}
if (type == IF_VIRTIO) {
QemuOpts *devopts;
devopts = qemu_opts_create_nofail(qemu_find_opts("device"));
if (arch_type == QEMU_ARCH_S390X) {
qemu_opt_set(devopts, "driver", "virtio-blk-s390");
} else {
qemu_opt_set(devopts, "driver", "virtio-blk-pci");
}
qemu_opt_set(devopts, "drive", qdict_get_str(bs_opts, "id"));
if (devaddr) {
qemu_opt_set(devopts, "addr", devaddr);
}
}
/* Actual block device init: Functionality shared with blockdev-add */
dinfo = blockdev_init(bs_opts, type, media);
if (dinfo == NULL) {
@ -879,6 +882,7 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
dinfo->bus = bus_id;
dinfo->unit = unit_id;
dinfo->devaddr = devaddr;
fail:
qemu_opts_del(legacy_opts);
@ -2258,10 +2262,6 @@ QemuOptsList qemu_common_drive_opts = {
.name = "werror",
.type = QEMU_OPT_STRING,
.help = "write error action",
},{
.name = "addr",
.type = QEMU_OPT_STRING,
.help = "pci address (virtio only)",
},{
.name = "read-only",
.type = QEMU_OPT_BOOL,