Don't fail when tray is already open.
Signed-off-by: Markus Armbruster<address@hidden>
---
hw/scsi-bus.c | 10 ++++++++++
hw/scsi-disk.c | 15 +++++++++++----
hw/scsi.h | 4 ++++
3 files changed, 25 insertions(+), 4 deletions(-)
diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c
index 160eaee..79cb29d 100644
--- a/hw/scsi-bus.c
+++ b/hw/scsi-bus.c
@@ -772,6 +772,11 @@ const struct SCSISense sense_code_NO_MEDIUM = {
.key = NOT_READY, .asc = 0x3a, .ascq = 0x00
};
+/* LUN not ready, medium removal prevented */
+const struct SCSISense sense_code_NOT_READY_REMOVAL_PREVENTED = {
+ .key = NOT_READY, .asc = 0x53, .ascq = 0x00
+};
+
/* Hardware error, internal target failure */
const struct SCSISense sense_code_TARGET_FAILURE = {
.key = HARDWARE_ERROR, .asc = 0x44, .ascq = 0x00
@@ -807,6 +812,11 @@ const struct SCSISense sense_code_INCOMPATIBLE_MEDIUM = {
.key = ILLEGAL_REQUEST, .asc = 0x30, .ascq = 0x00
};
+/* Illegal request, medium removal prevented */
+const struct SCSISense sense_code_ILLEGAL_REQ_REMOVAL_PREVENTED = {
+ .key = ILLEGAL_REQUEST, .asc = 0x53, .ascq = 0x00
+};
+
/* Command aborted, I/O process terminated */
const struct SCSISense sense_code_IO_ERROR = {
.key = ABORTED_COMMAND, .asc = 0x00, .ascq = 0x06
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 4e89bb1..1a49217 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -822,7 +822,7 @@ static int scsi_disk_emulate_read_toc(SCSIRequest *req,
uint8_t *outbuf)
return toclen;
}
-static void scsi_disk_emulate_start_stop(SCSIDiskReq *r)
+static int scsi_disk_emulate_start_stop(SCSIDiskReq *r)
{
SCSIRequest *req =&r->req;
SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev);
@@ -830,12 +830,17 @@ static void scsi_disk_emulate_start_stop(SCSIDiskReq *r)
bool loej = req->cmd.buf[4]& 2; /* load on start, eject on !start */
if (s->qdev.type == TYPE_ROM&& loej) {
- if (!start&& s->tray_locked) {
- return;
+ if (!start&& !s->tray_open&& s->tray_locked) {
+ scsi_check_condition(r,
+ bdrv_is_inserted(s->bs)
+ ? SENSE_CODE(ILLEGAL_REQ_REMOVAL_PREVENTED)
+ : SENSE_CODE(NOT_READY_REMOVAL_PREVENTED));
+ return -1;
}
bdrv_eject(s->bs, !start);
s->tray_open = !start;
}
+ return 0;
}
static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf)
@@ -883,7 +888,9 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r,
uint8_t *outbuf)
goto illegal_request;
break;
case START_STOP:
- scsi_disk_emulate_start_stop(r);
+ if (scsi_disk_emulate_start_stop(r)< 0) {
+ return -1;
+ }
break;
case ALLOW_MEDIUM_REMOVAL:
s->tray_locked = req->cmd.buf[4]& 1;
diff --git a/hw/scsi.h b/hw/scsi.h
index 98fd689..a28cd68 100644
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -136,6 +136,8 @@ extern const struct SCSISense sense_code_NO_SENSE;
extern const struct SCSISense sense_code_LUN_NOT_READY;
/* LUN not ready, Medium not present */
extern const struct SCSISense sense_code_NO_MEDIUM;
+/* LUN not ready, medium removal prevented */
+extern const struct SCSISense sense_code_NOT_READY_REMOVAL_PREVENTED;
/* Hardware error, internal target failure */
extern const struct SCSISense sense_code_TARGET_FAILURE;
/* Illegal request, invalid command operation code */
@@ -150,6 +152,8 @@ extern const struct SCSISense sense_code_LUN_NOT_SUPPORTED;
extern const struct SCSISense sense_code_SAVING_PARAMS_NOT_SUPPORTED;
/* Illegal request, Incompatible format */
extern const struct SCSISense sense_code_INCOMPATIBLE_FORMAT;
+/* Illegal request, medium removal prevented */
+extern const struct SCSISense sense_code_ILLEGAL_REQ_REMOVAL_PREVENTED;
/* Command aborted, I/O process terminated */
extern const struct SCSISense sense_code_IO_ERROR;
/* Command aborted, I_T Nexus loss occurred */