Re: [PATCH v3 08/18] tools/testing/cxl: Add "Freeze Security State" security opcode support

[Jonathan Cameron <Jonathan.Cameron@Huawei.com>]

On Tue, 08 Nov 2022 10:26:07 -0700
Dave Jiang <dave.jiang@intel.com> wrote:

> Add support to emulate a CXL mem device support the "Freeze Security State"
> operation.
> 
> Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Thanks,

Jonathan

> ---
>  tools/testing/cxl/test/mem.c |   20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
> index d8bb30d82a8f..0cb2e3035636 100644
> --- a/tools/testing/cxl/test/mem.c
> +++ b/tools/testing/cxl/test/mem.c
> @@ -303,6 +303,23 @@ static int mock_disable_passphrase(struct cxl_dev_state *cxlds, struct cxl_mbox_
>  	return 0;
>  }
>  
> +static int mock_freeze_security(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
> +{
> +	struct cxl_mock_mem_pdata *mdata = dev_get_platdata(cxlds->dev);
> +
> +	if (cmd->size_in != 0)
> +		return -EINVAL;
> +
> +	if (cmd->size_out != 0)
> +		return -EINVAL;
> +
> +	if (mdata->security_state & CXL_PMEM_SEC_STATE_FROZEN)
> +		return 0;
> +
> +	mdata->security_state |= CXL_PMEM_SEC_STATE_FROZEN;
> +	return 0;
> +}
> +
>  static int mock_get_lsa(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
>  {
>  	struct cxl_mbox_get_lsa *get_lsa = cmd->payload_in;
> @@ -405,6 +422,9 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *
>  	case CXL_MBOX_OP_DISABLE_PASSPHRASE:
>  		rc = mock_disable_passphrase(cxlds, cmd);
>  		break;
> +	case CXL_MBOX_OP_FREEZE_SECURITY:
> +		rc = mock_freeze_security(cxlds, cmd);
> +		break;
>  	default:
>  		break;
>  	}
> 
>