scsi: report thin provisioning errors with werror=report

SCSI defines a status code for when a thin-provisioned LUNs would
exceed the allocated space, map ENOSPC to it.
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

hw/scsi/scsi-bus.c

@@ -1367,6 +1367,11 @@ const struct SCSISense sense_code_WRITE_PROTECTED = {
     .key = DATA_PROTECT, .asc = 0x27, .ascq = 0x00
 };
 
+/* Data Protection, Space Allocation Failed Write Protect */
+const struct SCSISense sense_code_SPACE_ALLOC_FAILED = {
+    .key = DATA_PROTECT, .asc = 0x27, .ascq = 0x07
+};
+
 /*
  * scsi_build_sense
  *

hw/scsi/scsi-disk.c

@@ -428,6 +428,9 @@ static int scsi_handle_rw_error(SCSIDiskReq *r, int error)
         case EINVAL:
             scsi_check_condition(r, SENSE_CODE(INVALID_FIELD));
             break;
+        case ENOSPC:
+            scsi_check_condition(r, SENSE_CODE(SPACE_ALLOC_FAILED));
+            break;
         default:
             scsi_check_condition(r, SENSE_CODE(IO_ERROR));
             break;

include/hw/scsi/scsi.h

@@ -223,6 +223,8 @@ extern const struct SCSISense sense_code_REPORTED_LUNS_CHANGED;
 extern const struct SCSISense sense_code_DEVICE_INTERNAL_RESET;
 /* Data Protection, Write Protected */
 extern const struct SCSISense sense_code_WRITE_PROTECTED;
+/* Data Protection, Space Allocation Failed Write Protect */
+extern const struct SCSISense sense_code_SPACE_ALLOC_FAILED;
 
 #define SENSE_CODE(x) sense_code_ ## x