[RFC 3/4] NVMe media error reporting

[Tony Asleson]

Rudimentary and basic support for returning NVMe errors.

Signed-off-by: Tony Asleson <address@hidden>
---
 hw/block/nvme.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 12d8254250..faf72c2b8c 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -25,6 +25,7 @@
  * offset 0 in BAR2 and supports only WDS, RDS and SQS for now.
  */
 
+#include "block/error_inject.h"
 #include "qemu/osdep.h"
 #include "qemu/units.h"
 #include "hw/block/block.h"
@@ -390,6 +391,13 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns, 
NvmeCmd *cmd,
         return NVME_LBA_RANGE | NVME_DNR;
     }
 
+    if (!is_write) {
+        uint64_t error_sector = 0;
+        if (error_in_read(n->serial, slba, nlb, &error_sector)) {
+            return NVME_UNRECOVERED_READ | NVME_DNR;
+        }
+    }
+
     if (nvme_map_prp(&req->qsg, &req->iov, prp1, prp2, data_size, n)) {
         block_acct_invalid(blk_get_stats(n->conf.blk), acct);
         return NVME_INVALID_FIELD | NVME_DNR;
-- 
2.21.0