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[Qemu-devel] [PATCH 6/8] scsi: Split qdev "scsi-disk" into "scsi-hd" and
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From: |
Markus Armbruster |
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Subject: |
[Qemu-devel] [PATCH 6/8] scsi: Split qdev "scsi-disk" into "scsi-hd" and "scsi-cd" |
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Date: |
Tue, 6 Jul 2010 14:37:47 +0200 |
Disk vs. CD needs to be in qdev, because it belongs to the drive's
guest part.
Keep scsi-disk for backward compatibility.
Signed-off-by: Markus Armbruster <address@hidden>
---
hw/scsi-disk.c | 117 +++++++++++++++++++++++++++++++++++++++++++------------
1 files changed, 91 insertions(+), 26 deletions(-)
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index f43f2d0..ebefcba 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -67,6 +67,7 @@ struct SCSIDiskState
QEMUBH *bh;
char *version;
char *serial;
+ int is_cd;
};
static SCSIDiskReq *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun)
@@ -339,7 +340,7 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req,
uint8_t *outbuf)
return -1;
}
- if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
+ if (s->is_cd) {
outbuf[buflen++] = 5;
} else {
outbuf[buflen++] = 0;
@@ -452,7 +453,7 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req,
uint8_t *outbuf)
return buflen;
}
- if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM) {
+ if (s->is_cd) {
outbuf[0] = 5;
outbuf[1] = 0x80;
memcpy(&outbuf[16], "QEMU CD-ROM ", 16);
@@ -566,7 +567,7 @@ static int mode_sense_page(SCSIRequest *req, int page,
uint8_t *p)
return 20;
case 0x2a: /* CD Capabilities and Mechanical Status page. */
- if (bdrv_get_type_hint(bdrv) != BDRV_TYPE_CDROM)
+ if (!s->is_cd)
return 0;
p[0] = 0x2a;
p[1] = 0x14;
@@ -755,7 +756,7 @@ static int scsi_disk_emulate_command(SCSIRequest *req,
uint8_t *outbuf)
goto illegal_request;
break;
case START_STOP:
- if (bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM && (req->cmd.buf[4] &
2)) {
+ if (s->is_cd && (req->cmd.buf[4] & 2)) {
/* load/eject medium */
bdrv_eject(s->bs, !(req->cmd.buf[4] & 1));
}
@@ -1046,10 +1047,9 @@ static void scsi_destroy(SCSIDevice *dev)
blockdev_mark_auto_del(s->qdev.conf.bs);
}
-static int scsi_disk_initfn(SCSIDevice *dev)
+static int scsi_initfn(SCSIDevice *dev, int is_cd)
{
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev);
- int is_cd;
DriveInfo *dinfo;
if (!s->qdev.conf.bs) {
@@ -1057,7 +1057,7 @@ static int scsi_disk_initfn(SCSIDevice *dev)
return -1;
}
s->bs = s->qdev.conf.bs;
- is_cd = bdrv_get_type_hint(s->bs) == BDRV_TYPE_CDROM;
+ s->is_cd = is_cd;
if (!is_cd && !bdrv_is_inserted(s->bs)) {
error_report("Device needs media, but drive is empty");
@@ -1097,28 +1097,93 @@ static int scsi_disk_initfn(SCSIDevice *dev)
return 0;
}
-static SCSIDeviceInfo scsi_disk_info = {
- .qdev.name = "scsi-disk",
- .qdev.desc = "virtual scsi disk or cdrom",
- .qdev.size = sizeof(SCSIDiskState),
- .qdev.reset = scsi_disk_reset,
- .init = scsi_disk_initfn,
- .destroy = scsi_destroy,
- .send_command = scsi_send_command,
- .read_data = scsi_read_data,
- .write_data = scsi_write_data,
- .cancel_io = scsi_cancel_io,
- .get_buf = scsi_get_buf,
- .qdev.props = (Property[]) {
- DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf),
- DEFINE_PROP_STRING("ver", SCSIDiskState, version),
- DEFINE_PROP_STRING("serial", SCSIDiskState, serial),
- DEFINE_PROP_END_OF_LIST(),
- },
+static int scsi_hd_initfn(SCSIDevice *dev)
+{
+ return scsi_initfn(dev, 0);
+}
+
+static int scsi_cd_initfn(SCSIDevice *dev)
+{
+ return scsi_initfn(dev, 1);
+}
+
+static int scsi_disk_initfn(SCSIDevice *dev)
+{
+ int is_cd;
+
+ if (!dev->conf.bs) {
+ is_cd = 0; /* will die in scsi_initfn() */
+ } else {
+ is_cd = bdrv_get_type_hint(dev->conf.bs) == BDRV_TYPE_CDROM;
+ }
+
+ return scsi_initfn(dev, is_cd);
+}
+
+static SCSIDeviceInfo scsi_disk_info[] = {
+ {
+ .qdev.name = "scsi-hd",
+ .qdev.desc = "virtual scsi disk",
+ .qdev.size = sizeof(SCSIDiskState),
+ .qdev.reset = scsi_disk_reset,
+ .init = scsi_hd_initfn,
+ .destroy = scsi_destroy,
+ .send_command = scsi_send_command,
+ .read_data = scsi_read_data,
+ .write_data = scsi_write_data,
+ .cancel_io = scsi_cancel_io,
+ .get_buf = scsi_get_buf,
+ .qdev.props = (Property[]) {
+ DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf),
+ DEFINE_PROP_STRING("ver", SCSIDiskState, version),
+ DEFINE_PROP_STRING("serial", SCSIDiskState, serial),
+ DEFINE_PROP_END_OF_LIST(),
+ }
+ },{
+ .qdev.name = "scsi-cd",
+ .qdev.desc = "virtual scsi cdrom",
+ .qdev.size = sizeof(SCSIDiskState),
+ .qdev.reset = scsi_disk_reset,
+ .init = scsi_cd_initfn,
+ .destroy = scsi_destroy,
+ .send_command = scsi_send_command,
+ .read_data = scsi_read_data,
+ .write_data = scsi_write_data,
+ .cancel_io = scsi_cancel_io,
+ .get_buf = scsi_get_buf,
+ .qdev.props = (Property[]) {
+ DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf),
+ DEFINE_PROP_STRING("ver", SCSIDiskState, version),
+ DEFINE_PROP_STRING("serial", SCSIDiskState, serial),
+ DEFINE_PROP_END_OF_LIST(),
+ },
+ },{
+ .qdev.name = "scsi-disk", /* legacy -device scsi-disk */
+ .qdev.desc = "virtual scsi disk or cdrom (legacy)",
+ .qdev.size = sizeof(SCSIDiskState),
+ .qdev.reset = scsi_disk_reset,
+ .init = scsi_disk_initfn,
+ .destroy = scsi_destroy,
+ .send_command = scsi_send_command,
+ .read_data = scsi_read_data,
+ .write_data = scsi_write_data,
+ .cancel_io = scsi_cancel_io,
+ .get_buf = scsi_get_buf,
+ .qdev.props = (Property[]) {
+ DEFINE_BLOCK_PROPERTIES(SCSIDiskState, qdev.conf),
+ DEFINE_PROP_STRING("ver", SCSIDiskState, version),
+ DEFINE_PROP_STRING("serial", SCSIDiskState, serial),
+ DEFINE_PROP_END_OF_LIST(),
+ }
+ }
};
static void scsi_disk_register_devices(void)
{
- scsi_qdev_register(&scsi_disk_info);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(scsi_disk_info); i++) {
+ scsi_qdev_register(&scsi_disk_info[i]);
+ }
}
device_init(scsi_disk_register_devices)
--
1.6.6.1