On Mon, Jan 25, 2021 at 02:56:25PM -0600, richard.gong@xxxxxxxxxxxxxxx wrote:
> From: Richard Gong <richard.gong@xxxxxxxxx>
>
> Add FPGA_MGR_BITSTREM_AUTHENTICATION flag for FPGA bitstream
> authentication, which makes sure a signed bitstream has valid signatures.
>
> Except for the actual configuration of the device, the authentication works
> the same way as FPGA configuration does. If the authentication passes, the
> bitstream will be programmed into QSPI flash and will be expected to boot
> without issues.
>
> Signed-off-by: Richard Gong <richard.gong@xxxxxxxxx>
> ---
> v3: no change
> v2: align all FPGA_MGR_* flags
> update the commit messages
> ---
> include/linux/fpga/fpga-mgr.h | 13 ++++++++-----
> 1 file changed, 8 insertions(+), 5 deletions(-)
>
> diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h
> index 2bc3030..4fb3400 100644
> --- a/include/linux/fpga/fpga-mgr.h
> +++ b/include/linux/fpga/fpga-mgr.h
> @@ -67,12 +67,15 @@ enum fpga_mgr_states {
> * %FPGA_MGR_BITSTREAM_LSB_FIRST: SPI bitstream bit order is LSB first
> *
> * %FPGA_MGR_COMPRESSED_BITSTREAM: FPGA bitstream is compressed
> + *
> + * %FPGA_MGR_BITSTREM_AUTHENTICATION: do FPGA bitstream authentication only
> */
> -#define FPGA_MGR_PARTIAL_RECONFIG BIT(0)
> -#define FPGA_MGR_EXTERNAL_CONFIG BIT(1)
> -#define FPGA_MGR_ENCRYPTED_BITSTREAM BIT(2)
> -#define FPGA_MGR_BITSTREAM_LSB_FIRST BIT(3)
> -#define FPGA_MGR_COMPRESSED_BITSTREAM BIT(4)
> +#define FPGA_MGR_PARTIAL_RECONFIG BIT(0)
> +#define FPGA_MGR_EXTERNAL_CONFIG BIT(1)
> +#define FPGA_MGR_ENCRYPTED_BITSTREAM BIT(2)
> +#define FPGA_MGR_BITSTREAM_LSB_FIRST BIT(3)
> +#define FPGA_MGR_COMPRESSED_BITSTREAM BIT(4)
> +#define FPGA_MGR_BITSTREM_AUTHENTICATION BIT(5)
Consider FPGA_MGR_BITSTREAM_AUTHENTICATE (and fix typo)
>
> /**
> * struct fpga_image_info - information specific to a FPGA image
> --
> 2.7.4
>
Thanks,
Moritz
