linux-kernel - Re: [PATCHv1 0/4] Extend FPGA manager and region drivers for

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Date:   Mon, 16 Nov 2020 10:41:47 +0800
From:   Xu Yilun <yilun.xu@...el.com>
To:     richard.gong@...ux.intel.com
Cc:     mdf@...nel.org, trix@...hat.com, linux-fpga@...r.kernel.org,
        linux-kernel@...r.kernel.org, dinguyen@...nel.org,
        sridhar.rajagopal@...el.com, Richard Gong <richard.gong@...el.com>,
        yilun.xu@...el.com
Subject: Re: [PATCHv1 0/4] Extend FPGA manager and region drivers for

On Thu, Nov 12, 2020 at 12:06:39PM -0600, richard.gong@...ux.intel.com wrote:
> From: Richard Gong <richard.gong@...el.com>
> 
> The customer wants to verify that a FPGA bitstream can be started properly
> before saving the bitstream to the QSPI flash memory.
> 
> The customer sends the bitstream via FPGA framework and overlay, the
> firmware will authenticate the bitstream but not program the bitstream to
> device. If the authentication passes, the bitstream will be programmed into
> QSPI flash and will be expected to boot without issues.

So when we have successfully reprogramed region with the
FPGA_MGR_BITSTREM_AUTHENTICATION flag, the bitstream in QSPI flash is
updated but not activated, we need an FPGA reboot to activate it, is it?

Thanks,
Yilun

> 
> Extend FPGA manager and region drivers to support the bitstream
> authentication feature.
> 
> Richard Gong (4):
>   fpga: fpga-mgr: add FPGA_MGR_BITSTREM_AUTHENTICATION flag
>   fpga: of-fpga-region: add authenticate-fpga-config property
>   dt-bindings: fpga: add authenticate-fpga-config property
>   fpga: stratix10-soc: entend driver for bitstream authentication
> 
>  Documentation/devicetree/bindings/fpga/fpga-region.txt | 1 +
>  drivers/fpga/of-fpga-region.c                          | 3 +++
>  drivers/fpga/stratix10-soc.c                           | 5 ++++-
>  include/linux/fpga/fpga-mgr.h                          | 3 +++
>  4 files changed, 11 insertions(+), 1 deletion(-)
> 
> -- 
> 2.7.4