linux-kernel - Re: [PATCH 2/3] firmware: arm_ffa: Setup of

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Z49v50epNMm6YvAr@bogus>
Date: Tue, 21 Jan 2025 09:59:03 +0000
From: Sudeep Holla <sudeep.holla@....com>
To: Viresh Kumar <viresh.kumar@...aro.org>
Cc: Vincent Guittot <vincent.guittot@...aro.org>,
	Sudeep Holla <sudeep.holla@....com>,
	Alex Bennée <alex.bennee@...aro.org>,
	Bill Mills <bill.mills@...aro.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] firmware: arm_ffa: Setup of_node for ffa devices

On Tue, Jan 21, 2025 at 12:26:39PM +0530, Viresh Kumar wrote:
> Match and bind the of_node for the FFA device.

I am bit confused and need more details than the above line 😄, because

1. We don't have any binding for FF-A and compatible "arm,ffa" is not yet
   defined
2. Even if we have binding, we will not have vm_id and UUID which are
   discoverable from the firmware
3. DT maintainers rejected the bindings when it was initially proposed
   as it is discoverable. If we need it for a valid reason, we need more
   info, this patch doesn't provide full picture to change their stance.

I would like to add minimal binding not for vmid or UUID but for interrupts
only. It is still WIP but I haven't made up my mind on how that should look.

--
Regards,
Sudeep