Re: [PATCH v2 0/7] Introduce bus firewall controller framework

[Mark Brown]

On Fri, Jan 31, 2020 at 12:48:33PM -0800, Florian Fainelli wrote:

> Like Robin and Sudeep here, I do not understand why the kernel should
> have any business in this, let alone allowing blocks to change owners,
> that sounds contrary to the purpose of a firewall being controlled under
> an untrusted entity (Linux).

Can we rely on there being a more trusted level of software than
Linux on a system?  It wasn't standard to have anything on 32 bit
Arm systems as far as I remember so you could end up with some IP
blocks intended to support TrustZone sitting idle.

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