Supporting new interfaces in phosphor-ipmi-flash

[Patrick Venture]

On Wed, Jan 27, 2021 at 1:44 AM Troy Lee <troy_lee at aspeedtech.com> wrote:
>
> Hi team,
>
> For security consideration, user might want to disable AST2500/AST2600 P2A functionality by default. To compensate the effect to phosphor-ipmi-flash, we're planning to support two alternative in-band firmware upgrade over PCIe for AST2500/AST2600 (AST2520 and AST2620 are excluded):
>  - Through a reserved **VGA** memory on BAR[0], or
>  - Through a reserved **PCIe** shared memory on BAR[1]
>
> The usage pretty much the same as P2A, but it runs on different BAR, offset and length.
> This will involves modifying phosphor-ipmi-flash/[tools|bmc]. Should I create new **interfaces**, e.g. astpcie/astvga?

I'm not sure it makes sense to create new interfaces, but rather to
add optional parameters for those differences... but I've added some
people to the reply line to help answer.

>
> Thanks,
> Troy Lee
>
>