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blockdev: Moving parsing of geometry options to drive_init

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This moves all of the geometry options (cyls/heads/secs/trans) to
drive_init so that they can only be accessed using legacy functions, but
never with anything blockdev-add related.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2013-09-09 16:49:49 +02:00
parent 593d464bd4
commit b41a7338cf
1 changed files with 69 additions and 67 deletions
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136
blockdev.c
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@ -317,7 +317,6 @@ static DriveInfo *blockdev_init(QDict *bs_opts,
const char *serial;
const char *mediastr = "";
int bus_id, unit_id;
int cyls, heads, secs, translation;
int max_devs;
int index;
int ro = 0;
@ -335,8 +334,6 @@ static DriveInfo *blockdev_init(QDict *bs_opts,
bool has_driver_specific_opts;
BlockDriver *drv = NULL;
translation = BIOS_ATA_TRANSLATION_AUTO;
/* Check common options by copying from bs_opts to opts, all other options
* stay in bs_opts for processing by bdrv_open(). */
id = qdict_get_try_str(bs_opts, "id");
@ -365,10 +362,6 @@ static DriveInfo *blockdev_init(QDict *bs_opts,
unit_id = qemu_opt_get_number(opts, "unit", -1);
index = qemu_opt_get_number(opts, "index", -1);
cyls = qemu_opt_get_number(opts, "cyls", 0);
heads = qemu_opt_get_number(opts, "heads", 0);
secs = qemu_opt_get_number(opts, "secs", 0);
snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
ro = qemu_opt_get_bool(opts, "read-only", 0);
copy_on_read = qemu_opt_get_bool(opts, "copy-on-read", false);
@ -378,46 +371,6 @@ static DriveInfo *blockdev_init(QDict *bs_opts,
max_devs = if_max_devs[type];
if (cyls || heads || secs) {
if (cyls < 1) {
error_report("invalid physical cyls number");
return NULL;
}
if (heads < 1) {
error_report("invalid physical heads number");
return NULL;
}
if (secs < 1) {
error_report("invalid physical secs number");
return NULL;
}
}
if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
if (!cyls) {
error_report("'%s' trans must be used with cyls, heads and secs",
buf);
return NULL;
}
if (!strcmp(buf, "none"))
translation = BIOS_ATA_TRANSLATION_NONE;
else if (!strcmp(buf, "lba"))
translation = BIOS_ATA_TRANSLATION_LBA;
else if (!strcmp(buf, "auto"))
translation = BIOS_ATA_TRANSLATION_AUTO;
else {
error_report("'%s' invalid translation type", buf);
return NULL;
}
}
if (media == MEDIA_CDROM) {
if (cyls || secs || heads) {
error_report("CHS can't be set with media=cdrom");
return NULL;
}
}
if ((buf = qemu_opt_get(opts, "discard")) != NULL) {
if (bdrv_parse_discard_flags(buf, &bdrv_flags) != 0) {
error_report("invalid discard option");
@ -608,10 +561,6 @@ static DriveInfo *blockdev_init(QDict *bs_opts,
dinfo->type = type;
dinfo->bus = bus_id;
dinfo->unit = unit_id;
dinfo->cyls = cyls;
dinfo->heads = heads;
dinfo->secs = secs;
dinfo->trans = translation;
dinfo->refcount = 1;
if (serial != NULL) {
dinfo->serial = g_strdup(serial);
@ -744,6 +693,22 @@ QemuOptsList qemu_legacy_drive_opts = {
.name = "if",
.type = QEMU_OPT_STRING,
.help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
},{
.name = "cyls",
.type = QEMU_OPT_NUMBER,
.help = "number of cylinders (ide disk geometry)",
},{
.name = "heads",
.type = QEMU_OPT_NUMBER,
.help = "number of heads (ide disk geometry)",
},{
.name = "secs",
.type = QEMU_OPT_NUMBER,
.help = "number of sectors (ide disk geometry)",
},{
.name = "trans",
.type = QEMU_OPT_STRING,
.help = "chs translation (auto, lba, none)",
},
{ /* end of list */ }
},
@ -757,6 +722,7 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
QemuOpts *legacy_opts;
DriveMediaType media = MEDIA_DISK;
BlockInterfaceType type;
int cyls, heads, secs, translation;
Error *local_err = NULL;
/* Change legacy command line options into QMP ones */
@ -846,6 +812,53 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
type = block_default_type;
}
/* Geometry */
cyls = qemu_opt_get_number(legacy_opts, "cyls", 0);
heads = qemu_opt_get_number(legacy_opts, "heads", 0);
secs = qemu_opt_get_number(legacy_opts, "secs", 0);
if (cyls || heads || secs) {
if (cyls < 1) {
error_report("invalid physical cyls number");
goto fail;
}
if (heads < 1) {
error_report("invalid physical heads number");
goto fail;
}
if (secs < 1) {
error_report("invalid physical secs number");
goto fail;
}
}
translation = BIOS_ATA_TRANSLATION_AUTO;
value = qemu_opt_get(legacy_opts, "trans");
if (value != NULL) {
if (!cyls) {
error_report("'%s' trans must be used with cyls, heads and secs",
value);
goto fail;
}
if (!strcmp(value, "none")) {
translation = BIOS_ATA_TRANSLATION_NONE;
} else if (!strcmp(value, "lba")) {
translation = BIOS_ATA_TRANSLATION_LBA;
} else if (!strcmp(value, "auto")) {
translation = BIOS_ATA_TRANSLATION_AUTO;
} else {
error_report("'%s' invalid translation type", value);
goto fail;
}
}
if (media == MEDIA_CDROM) {
if (cyls || secs || heads) {
error_report("CHS can't be set with media=cdrom");
goto fail;
}
}
/* Actual block device init: Functionality shared with blockdev-add */
dinfo = blockdev_init(bs_opts, type, media);
if (dinfo == NULL) {
@ -856,6 +869,11 @@ DriveInfo *drive_init(QemuOpts *all_opts, BlockInterfaceType block_default_type)
dinfo->enable_auto_del = true;
dinfo->opts = all_opts;
dinfo->cyls = cyls;
dinfo->heads = heads;
dinfo->secs = secs;
dinfo->trans = translation;
fail:
qemu_opts_del(legacy_opts);
return dinfo;
@ -2202,22 +2220,6 @@ QemuOptsList qemu_common_drive_opts = {
.name = "index",
.type = QEMU_OPT_NUMBER,
.help = "index number",
},{
.name = "cyls",
.type = QEMU_OPT_NUMBER,
.help = "number of cylinders (ide disk geometry)",
},{
.name = "heads",
.type = QEMU_OPT_NUMBER,
.help = "number of heads (ide disk geometry)",
},{
.name = "secs",
.type = QEMU_OPT_NUMBER,
.help = "number of sectors (ide disk geometry)",
},{
.name = "trans",
.type = QEMU_OPT_STRING,
.help = "chs translation (auto, lba. none)",
},{
.name = "snapshot",
.type = QEMU_OPT_BOOL,