diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c
index bff2f5b..067a615 100644
--- a/hw/scsi-bus.c
+++ b/hw/scsi-bus.c
@@ -7,6 +7,8 @@
 #include "trace.h"
 
 static char *scsibus_get_fw_dev_path(DeviceState *dev);
+static int scsi_build_sense(uint8_t *in_buf, int in_len,
+                            uint8_t *buf, int len, bool fixed);
 
 static struct BusInfo scsi_bus_info = {
     .name  = "SCSI",
@@ -144,6 +146,7 @@ SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag,
     req->lun = lun;
     req->hba_private = hba_private;
     req->status = -1;
+    req->sense_len = 0;
     trace_scsi_req_alloc(req->dev->id, req->lun, req->tag);
     return req;
 }
@@ -161,11 +164,28 @@ uint8_t *scsi_req_get_buf(SCSIRequest *req)
 
 int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len)
 {
-    if (req->dev->info->get_sense) {
-        return req->dev->info->get_sense(req, buf, len);
-    } else {
+    assert(len >= 14);
+    if (!req->sense_len) {
         return 0;
     }
+    return scsi_build_sense(req->sense, req->sense_len, buf, len, true);
+}
+
+int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed)
+{
+    return scsi_build_sense(dev->sense, dev->sense_len, buf, len, fixed);
+}
+
+void scsi_req_build_sense(SCSIRequest *req, SCSISense sense)
+{
+    trace_scsi_req_build_sense(req->dev->id, req->lun, req->tag,
+                               sense.key, sense.asc, sense.ascq);
+    memset(req->sense, 0, 18);
+    req->sense[0] = 0xf0;
+    req->sense[2] = sense.key;
+    req->sense[12] = sense.asc;
+    req->sense[13] = sense.ascq;
+    req->sense_len = 18;
 }
 
 int32_t scsi_req_enqueue(SCSIRequest *req, uint8_t *buf)
@@ -486,14 +506,40 @@ const struct SCSISense sense_code_LUN_FAILURE = {
 /*
  * scsi_build_sense
  *
- * Build a sense buffer
+ * Convert between fixed and descriptor sense buffers
  */
-int scsi_build_sense(SCSISense sense, uint8_t *buf, int len, int fixed)
+int scsi_build_sense(uint8_t *in_buf, int in_len,
+                     uint8_t *buf, int len, bool fixed)
 {
+    bool fixed_in;
+    SCSISense sense;
     if (!fixed && len < 8) {
         return 0;
     }
 
+    if (in_len == 0) {
+        sense.key = NO_SENSE;
+        sense.asc = 0;
+        sense.ascq = 0;
+    } else {
+        fixed_in = (in_buf[0] & 2) == 0;
+
+        if (fixed == fixed_in) {
+            memcpy(buf, in_buf, MIN(len, in_len));
+            return MIN(len, in_len);
+        }
+
+        if (fixed_in) {
+            sense.key = in_buf[2];
+            sense.asc = in_buf[12];
+            sense.ascq = in_buf[13];
+        } else {
+            sense.key = in_buf[1];
+            sense.asc = in_buf[2];
+            sense.ascq = in_buf[3];
+        }
+    }
+
     memset(buf, 0, len);
     if (fixed) {
         /* Return fixed format sense buffer */
@@ -676,6 +722,17 @@ void scsi_req_complete(SCSIRequest *req, int status)
 {
     assert(req->status == -1);
     req->status = status;
+
+    assert(req->sense_len < sizeof(req->sense));
+    if (status == GOOD) {
+        req->sense_len = 0;
+    }
+
+    if (req->sense_len) {
+        memcpy(req->dev->sense, req->sense, req->sense_len);
+    }
+    req->dev->sense_len = req->sense_len;
+
     scsi_req_ref(req);
     scsi_req_dequeue(req);
     req->bus->ops->complete(req, req->status);
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 8beaebf..4c1e58f 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -73,7 +73,6 @@ struct SCSIDiskState
     QEMUBH *bh;
     char *version;
     char *serial;
-    SCSISense sense;
     SCSIDriveKind drive_kind;
 };
 
@@ -100,20 +99,13 @@ static void scsi_free_request(SCSIRequest *req)
     qemu_vfree(r->iov.iov_base);
 }
 
-static void scsi_disk_clear_sense(SCSIDiskState *s)
+/* Helper function for command completion with sense.  */
+static void scsi_check_condition(SCSIDiskReq *r, SCSISense sense)
 {
-    memset(&s->sense, 0, sizeof(s->sense));
-}
-
-/* Helper function for command completion.  */
-static void scsi_command_complete(SCSIDiskReq *r, int status, SCSISense sense)
-{
-    SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, r->req.dev);
-
     DPRINTF("Command complete tag=0x%x status=%d sense=%d/%d/%d\n",
             r->req.tag, status, sense.key, sense.asc, sense.ascq);
-    s->sense = sense;
-    scsi_req_complete(&r->req, status);
+    scsi_req_build_sense(&r->req, sense);
+    scsi_req_complete(&r->req, CHECK_CONDITION);
 }
 
 /* Cancel a pending data transfer.  */
@@ -165,7 +157,8 @@ static void scsi_read_data(SCSIRequest *req)
     }
     DPRINTF("Read sector_count=%d\n", r->sector_count);
     if (r->sector_count == 0) {
-        scsi_command_complete(r, GOOD, SENSE_CODE(NO_SENSE));
+        /* This also clears the sense buffer for REQUEST SENSE.  */
+        scsi_req_complete(&r->req, GOOD);
         return;
     }
 
@@ -213,16 +206,13 @@ static int scsi_handle_rw_error(SCSIDiskReq *r, int error, int type)
     } else {
         switch (error) {
         case ENOMEM:
-            scsi_command_complete(r, CHECK_CONDITION,
-                                  SENSE_CODE(TARGET_FAILURE));
+            scsi_check_condition(r, SENSE_CODE(TARGET_FAILURE));
             break;
         case EINVAL:
-            scsi_command_complete(r, CHECK_CONDITION,
-                                  SENSE_CODE(INVALID_FIELD));
+            scsi_check_condition(r, SENSE_CODE(INVALID_FIELD));
             break;
         default:
-            scsi_command_complete(r, CHECK_CONDITION,
-                                  SENSE_CODE(IO_ERROR));
+            scsi_check_condition(r, SENSE_CODE(IO_ERROR));
             break;
         }
         bdrv_mon_event(s->bs, BDRV_ACTION_REPORT, is_read);
@@ -248,7 +238,7 @@ static void scsi_write_complete(void * opaque, int ret)
     r->sector += n;
     r->sector_count -= n;
     if (r->sector_count == 0) {
-        scsi_command_complete(r, GOOD, SENSE_CODE(NO_SENSE));
+        scsi_req_complete(&r->req, GOOD);
     } else {
         len = r->sector_count * 512;
         if (len > SCSI_DMA_BUF_SIZE) {
@@ -317,7 +307,7 @@ static void scsi_dma_restart_bh(void *opaque)
             case SCSI_REQ_STATUS_RETRY_FLUSH:
                 ret = scsi_disk_emulate_command(r, r->iov.iov_base);
                 if (ret == 0) {
-                    scsi_command_complete(r, GOOD, SENSE_CODE(NO_SENSE));
+                    scsi_req_complete(&r->req, GOOD);
                 }
             }
         }
@@ -345,14 +335,6 @@ static uint8_t *scsi_get_buf(SCSIRequest *req)
     return (uint8_t *)r->iov.iov_base;
 }
 
-/* Copy sense information into the provided buffer */
-static int scsi_get_sense(SCSIRequest *req, uint8_t *outbuf, int len)
-{
-    SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev);
-
-    return scsi_build_sense(s->sense, outbuf, len, len > 14);
-}
-
 static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf)
 {
     SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, req->dev);
@@ -831,9 +813,8 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf)
     case REQUEST_SENSE:
         if (req->cmd.xfer < 4)
             goto illegal_request;
-        buflen = scsi_build_sense(s->sense, outbuf, req->cmd.xfer,
-                                  req->cmd.xfer > 13);
-        scsi_disk_clear_sense(s);
+        buflen = scsi_device_get_sense(&s->qdev, outbuf, req->cmd.xfer,
+                                       (req->cmd.buf[1] & 1) == 0);
         break;
     case INQUIRY:
         buflen = scsi_disk_emulate_inquiry(req, outbuf);
@@ -970,21 +951,21 @@ static int scsi_disk_emulate_command(SCSIDiskReq *r, uint8_t *outbuf)
         }
         break;
     default:
-        scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_OPCODE));
+        scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE));
         return -1;
     }
     return buflen;
 
 not_ready:
     if (!bdrv_is_inserted(s->bs)) {
-        scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(NO_MEDIUM));
+        scsi_check_condition(r, SENSE_CODE(NO_MEDIUM));
     } else {
-        scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(LUN_NOT_READY));
+        scsi_check_condition(r, SENSE_CODE(LUN_NOT_READY));
     }
     return -1;
 
 illegal_request:
-    scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_FIELD));
+    scsi_check_condition(r, SENSE_CODE(INVALID_FIELD));
     return -1;
 }
 
@@ -1008,7 +989,7 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf)
 
     if (scsi_req_parse(&r->req, buf) != 0) {
         BADF("Unsupported command length, command %x\n", command);
-        scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_OPCODE));
+        scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE));
         return 0;
     }
 #ifdef DEBUG_SCSI
@@ -1025,8 +1006,7 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf)
         /* Only LUN 0 supported.  */
         DPRINTF("Unimplemented LUN %d\n", req->lun);
         if (command != REQUEST_SENSE && command != INQUIRY) {
-            scsi_command_complete(r, CHECK_CONDITION,
-                                  SENSE_CODE(LUN_NOT_SUPPORTED));
+            scsi_check_condition(r, SENSE_CODE(LUN_NOT_SUPPORTED));
             return 0;
         }
     }
@@ -1135,17 +1115,17 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *buf)
         break;
     default:
         DPRINTF("Unknown SCSI command (%2.2x)\n", buf[0]);
-        scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_OPCODE));
+        scsi_check_condition(r, SENSE_CODE(INVALID_OPCODE));
         return 0;
     fail:
-        scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(INVALID_FIELD));
+        scsi_check_condition(r, SENSE_CODE(INVALID_FIELD));
         return 0;
     illegal_lba:
-        scsi_command_complete(r, CHECK_CONDITION, SENSE_CODE(LBA_OUT_OF_RANGE));
+        scsi_check_condition(r, SENSE_CODE(LBA_OUT_OF_RANGE));
         return 0;
     }
     if (r->sector_count == 0 && r->iov.iov_len == 0) {
-        scsi_command_complete(r, GOOD, SENSE_CODE(NO_SENSE));
+        scsi_req_complete(&r->req, GOOD);
     }
     len = r->sector_count * 512 + r->iov.iov_len;
     if (r->req.cmd.mode == SCSI_XFER_TO_DEV) {
@@ -1275,7 +1255,6 @@ static SCSIDeviceInfo scsi_disk_info[] = {
         .write_data   = scsi_write_data,
         .cancel_io    = scsi_cancel_io,
         .get_buf      = scsi_get_buf,
-        .get_sense    = scsi_get_sense,
         .qdev.props   = (Property[]) {
             DEFINE_SCSI_DISK_PROPERTIES(),
             DEFINE_PROP_BIT("removable", SCSIDiskState, removable, 0, false),
@@ -1296,7 +1275,6 @@ static SCSIDeviceInfo scsi_disk_info[] = {
         .write_data   = scsi_write_data,
         .cancel_io    = scsi_cancel_io,
         .get_buf      = scsi_get_buf,
-        .get_sense    = scsi_get_sense,
         .qdev.props   = (Property[]) {
             DEFINE_SCSI_DISK_PROPERTIES(),
             DEFINE_PROP_END_OF_LIST(),
@@ -1316,7 +1294,6 @@ static SCSIDeviceInfo scsi_disk_info[] = {
         .write_data   = scsi_write_data,
         .cancel_io    = scsi_cancel_io,
         .get_buf      = scsi_get_buf,
-        .get_sense    = scsi_get_sense,
         .qdev.props   = (Property[]) {
             DEFINE_SCSI_DISK_PROPERTIES(),
             DEFINE_PROP_BIT("removable", SCSIDiskState, removable, 0, false),
diff --git a/hw/scsi-generic.c b/hw/scsi-generic.c
index f119f33..fc7cf01 100644
--- a/hw/scsi-generic.c
+++ b/hw/scsi-generic.c
@@ -61,41 +61,8 @@ struct SCSIGenericState
     SCSIDevice qdev;
     BlockDriverState *bs;
     int lun;
-    int driver_status;
-    uint8_t sensebuf[SCSI_SENSE_BUF_SIZE];
-    uint8_t senselen;
 };
 
-static void scsi_set_sense(SCSIGenericState *s, SCSISense sense)
-{
-    s->senselen = scsi_build_sense(sense, s->sensebuf, SCSI_SENSE_BUF_SIZE, 0);
-    s->driver_status = SG_ERR_DRIVER_SENSE;
-}
-
-static void scsi_clear_sense(SCSIGenericState *s)
-{
-    memset(s->sensebuf, 0, SCSI_SENSE_BUF_SIZE);
-    s->senselen = 0;
-    s->driver_status = 0;
-}
-
-static int scsi_get_sense(SCSIRequest *req, uint8_t *outbuf, int len)
-{
-    SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, req->dev);
-    int size = SCSI_SENSE_BUF_SIZE;
-
-    if (!(s->driver_status & SG_ERR_DRIVER_SENSE)) {
-        size = scsi_build_sense(SENSE_CODE(NO_SENSE), s->sensebuf,
-                                SCSI_SENSE_BUF_SIZE, 0);
-    }
-    if (size > len) {
-        size = len;
-    }
-    memcpy(outbuf, s->sensebuf, size);
-
-    return size;
-}
-
 static SCSIRequest *scsi_new_request(SCSIDevice *d, uint32_t tag, uint32_t lun,
                                      void *hba_private)
 {
@@ -117,12 +84,10 @@ static void scsi_command_complete(void *opaque, int ret)
 {
     int status;
     SCSIGenericReq *r = (SCSIGenericReq *)opaque;
-    SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, r->req.dev);
 
     r->req.aiocb = NULL;
-    s->driver_status = r->io_header.driver_status;
-    if (s->driver_status & SG_ERR_DRIVER_SENSE)
-        s->senselen = r->io_header.sb_len_wr;
+    if (r->io_header.driver_status & SG_ERR_DRIVER_SENSE)
+        r->req.sense_len = r->io_header.sb_len_wr;
 
     if (ret != 0) {
         switch (ret) {
@@ -131,24 +96,24 @@ static void scsi_command_complete(void *opaque, int ret)
             break;
         case -EINVAL:
             status = CHECK_CONDITION;
-            scsi_set_sense(s, SENSE_CODE(INVALID_FIELD));
+            scsi_req_build_sense(&r->req, SENSE_CODE(INVALID_FIELD));
             break;
         case -ENOMEM:
             status = CHECK_CONDITION;
-            scsi_set_sense(s, SENSE_CODE(TARGET_FAILURE));
+            scsi_req_build_sense(&r->req, SENSE_CODE(TARGET_FAILURE));
             break;
         default:
             status = CHECK_CONDITION;
-            scsi_set_sense(s, SENSE_CODE(IO_ERROR));
+            scsi_req_build_sense(&r->req, SENSE_CODE(IO_ERROR));
             break;
         }
     } else {
-        if (s->driver_status & SG_ERR_DRIVER_TIMEOUT) {
+        if (r->io_header.driver_status & SG_ERR_DRIVER_TIMEOUT) {
             status = BUSY;
             BADF("Driver Timeout\n");
         } else if (r->io_header.status) {
             status = r->io_header.status;
-        } else if (s->driver_status & SG_ERR_DRIVER_SENSE) {
+        } else if (r->io_header.driver_status & SG_ERR_DRIVER_SENSE) {
             status = CHECK_CONDITION;
         } else {
             status = GOOD;
@@ -176,16 +141,14 @@ static int execute_command(BlockDriverState *bdrv,
                            SCSIGenericReq *r, int direction,
 			   BlockDriverCompletionFunc *complete)
 {
-    SCSIGenericState *s = DO_UPCAST(SCSIGenericState, qdev, r->req.dev);
-
     r->io_header.interface_id = 'S';
     r->io_header.dxfer_direction = direction;
     r->io_header.dxferp = r->buf;
     r->io_header.dxfer_len = r->buflen;
     r->io_header.cmdp = r->req.cmd.buf;
     r->io_header.cmd_len = r->req.cmd.len;
-    r->io_header.mx_sb_len = sizeof(s->sensebuf);
-    r->io_header.sbp = s->sensebuf;
+    r->io_header.mx_sb_len = sizeof(r->req.sense);
+    r->io_header.sbp = r->req.sense;
     r->io_header.timeout = MAX_UINT;
     r->io_header.usr_ptr = r;
     r->io_header.flags |= SG_FLAG_DIRECT_IO;
@@ -234,21 +197,19 @@ static void scsi_read_data(SCSIRequest *req)
         return;
     }
 
-    if (r->req.cmd.buf[0] == REQUEST_SENSE && s->driver_status & SG_ERR_DRIVER_SENSE)
-    {
-        s->senselen = MIN(r->len, s->senselen);
-        memcpy(r->buf, s->sensebuf, s->senselen);
+    if (r->req.cmd.buf[0] == REQUEST_SENSE) {
         r->io_header.driver_status = 0;
         r->io_header.status = 0;
-        r->io_header.dxfer_len  = s->senselen;
+        r->io_header.dxfer_len =
+            scsi_device_get_sense(&s->qdev, r->buf, r->req.cmd.xfer,
+                                  (r->req.cmd.buf[1] & 1) == 0);
         r->len = -1;
-        DPRINTF("Data ready tag=0x%x len=%d\n", r->req.tag, s->senselen);
+        DPRINTF("Data ready tag=0x%x len=%d\n", r->req.tag, r->io_header.dxfer_len);
         DPRINTF("Sense: %d %d %d %d %d %d %d %d\n",
                 r->buf[0], r->buf[1], r->buf[2], r->buf[3],
                 r->buf[4], r->buf[5], r->buf[6], r->buf[7]);
-        scsi_req_data(&r->req, s->senselen);
-        /* Clear sensebuf after REQUEST_SENSE */
-        scsi_clear_sense(s);
+        scsi_req_data(&r->req, r->io_header.dxfer_len);
+        /* The sense buffer is cleared when we return GOOD */
         return;
     }
 
@@ -342,7 +303,7 @@ static int32_t scsi_send_command(SCSIRequest *req, uint8_t *cmd)
 
     if (cmd[0] != REQUEST_SENSE && req->lun != s->lun) {
         DPRINTF("Unimplemented LUN %d\n", req->lun);
-        scsi_set_sense(s, SENSE_CODE(LUN_NOT_SUPPORTED));
+        scsi_req_build_sense(&r->req, SENSE_CODE(LUN_NOT_SUPPORTED));
         scsi_req_complete(&r->req, CHECK_CONDITION);
         return 0;
     }
@@ -533,8 +494,6 @@ static int scsi_generic_initfn(SCSIDevice *dev)
         }
     }
     DPRINTF("block size %d\n", s->qdev.blocksize);
-    s->driver_status = 0;
-    memset(s->sensebuf, 0, sizeof(s->sensebuf));
     bdrv_set_removable(s->bs, 0);
     return 0;
 }
@@ -553,7 +512,6 @@ static SCSIDeviceInfo scsi_generic_info = {
     .write_data   = scsi_write_data,
     .cancel_io    = scsi_cancel_io,
     .get_buf      = scsi_get_buf,
-    .get_sense    = scsi_get_sense,
     .qdev.props   = (Property[]) {
         DEFINE_BLOCK_PROPERTIES(SCSIGenericState, qdev.conf),
         DEFINE_PROP_END_OF_LIST(),
diff --git a/hw/scsi.h b/hw/scsi.h
index 18d3643..c1cb987 100644
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -27,6 +27,8 @@ typedef struct SCSISense {
     uint8_t ascq;
 } SCSISense;
 
+#define SCSI_SENSE_BUF_SIZE 96
+
 struct SCSIRequest {
     SCSIBus           *bus;
     SCSIDevice        *dev;
@@ -42,6 +44,8 @@ struct SCSIRequest {
         enum SCSIXferMode mode;
     } cmd;
     BlockDriverAIOCB  *aiocb;
+    uint8_t sense[SCSI_SENSE_BUF_SIZE];
+    uint32_t sense_len;
     bool enqueued;
     void *hba_private;
     QTAILQ_ENTRY(SCSIRequest) next;
@@ -53,6 +57,8 @@ struct SCSIDevice
     uint32_t id;
     BlockConf conf;
     SCSIDeviceInfo *info;
+    uint8_t sense[SCSI_SENSE_BUF_SIZE];
+    uint32_t sense_len;
     QTAILQ_HEAD(, SCSIRequest) requests;
     int blocksize;
     int type;
@@ -76,7 +82,6 @@ struct SCSIDeviceInfo {
     void (*write_data)(SCSIRequest *req);
     void (*cancel_io)(SCSIRequest *req);
     uint8_t *(*get_buf)(SCSIRequest *req);
-    int (*get_sense)(SCSIRequest *req, uint8_t *buf, int len);
 };
 
 struct SCSIBusOps {
@@ -137,7 +142,6 @@ extern const struct SCSISense sense_code_LUN_FAILURE;
 
 #define SENSE_CODE(x) sense_code_ ## x
 
-int scsi_build_sense(SCSISense sense, uint8_t *buf, int len, int fixed);
 int scsi_sense_valid(SCSISense sense);
 
 SCSIRequest *scsi_req_alloc(size_t size, SCSIDevice *d, uint32_t tag,
@@ -149,6 +153,7 @@ void scsi_req_free(SCSIRequest *req);
 SCSIRequest *scsi_req_ref(SCSIRequest *req);
 void scsi_req_unref(SCSIRequest *req);
 
+void scsi_req_build_sense(SCSIRequest *req, SCSISense sense);
 int scsi_req_parse(SCSIRequest *req, uint8_t *buf);
 void scsi_req_print(SCSIRequest *req);
 void scsi_req_continue(SCSIRequest *req);
@@ -159,5 +164,6 @@ int scsi_req_get_sense(SCSIRequest *req, uint8_t *buf, int len);
 void scsi_req_abort(SCSIRequest *req, int status);
 void scsi_req_cancel(SCSIRequest *req);
 void scsi_device_purge_requests(SCSIDevice *sdev);
+int scsi_device_get_sense(SCSIDevice *dev, uint8_t *buf, int len, bool fixed);
 
 #endif
diff --git a/trace-events b/trace-events
index 713f042..55023b0 100644
--- a/trace-events
+++ b/trace-events
@@ -248,6 +248,7 @@ disable scsi_req_continue(int target, int lun, int tag) "target %d lun %d tag %d
 disable scsi_req_parsed(int target, int lun, int tag, int cmd, int mode, int xfer) "target %d lun %d tag %d command %d dir %d length %d"
 disable scsi_req_parsed_lba(int target, int lun, int tag, int cmd, uint64_t lba) "target %d lun %d tag %d command %d lba %"PRIu64""
 disable scsi_req_parse_bad(int target, int lun, int tag, int cmd) "target %d lun %d tag %d command %d"
+disable scsi_req_build_sense(int target, int lun, int tag, int key, int asc, int ascq) "target %d lun %d tag %d key %#02x asc %#02x ascq %#02x"
 
 # vl.c
 disable vm_state_notify(int running, int reason) "running %d reason %d"
