On Sep 15 17:43, Pankaj Raghav wrote:
> Currently, FUSED operations are not supported by QEMU. As per the 1.4 SPEC,
> controller should abort the command that requested a fused operation with 
> an INVALID FIELD error code if they are not supported.
> 
> Changes from v1:
> Added FUSE flag check also to the admin cmd processing as the FUSED 
> operations are mentioned in the general SQE section in the SPEC. 
> 
> Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
> ---
>  hw/nvme/ctrl.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
> index dc0e7b0030..2f247a9275 100644
> --- a/hw/nvme/ctrl.c
> +++ b/hw/nvme/ctrl.c
> @@ -3893,6 +3893,10 @@ static uint16_t nvme_io_cmd(NvmeCtrl *n, NvmeRequest *req)
>          return ns->status;
>      }
>  
> +    if (NVME_CMD_FLAGS_FUSE(req->cmd.flags)) {
> +        return NVME_INVALID_FIELD;
> +    }
> +
>      req->ns = ns;
>  
>      switch (req->cmd.opcode) {
> @@ -5475,6 +5479,10 @@ static uint16_t nvme_admin_cmd(NvmeCtrl *n, NvmeRequest *req)
>          return NVME_INVALID_FIELD | NVME_DNR;
>      }
>  
> +    if (NVME_CMD_FLAGS_FUSE(req->cmd.flags)) {
> +        return NVME_INVALID_FIELD;
> +    }
> +
>      switch (req->cmd.opcode) {
>      case NVME_ADM_CMD_DELETE_SQ:
>          return nvme_del_sq(n, req);
> -- 
> 2.25.1

Applied to nvme-next. Thanks!