linux-kernel - Re: [PATCH v5 3/3] hwrng: add mtk-sec-rng driver

Open Source and information security mailing list archives

Message-ID: <1575027046.24848.4.camel@mtkswgap22>
Date:   Fri, 29 Nov 2019 19:30:46 +0800
From:   Neal Liu <neal.liu@...iatek.com>
To:     Lars Persson <lists@...h.nu>
CC:     Mark Rutland <mark.rutland@....com>,
        DTML <devicetree@...r.kernel.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        wsd_upstream <wsd_upstream@...iatek.com>,
        Sean Wang <sean.wang@...nel.org>,
        "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Crystal Guo (郭晶) 
        <Crystal.Guo@...iatek.com>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        Matt Mackall <mpm@...enic.com>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v5 3/3] hwrng: add mtk-sec-rng driver

On Fri, 2019-11-29 at 18:02 +0800, Lars Persson wrote:
> Hi Neal,
> 
> On Wed, Nov 27, 2019 at 3:23 PM Neal Liu <neal.liu@...iatek.com> wrote:
> >
> > For MediaTek SoCs on ARMv8 with TrustZone enabled, peripherals like
> > entropy sources is not accessible from normal world (linux) and
> > rather accessible from secure world (ATF/TEE) only. This driver aims
> > to provide a generic interface to ATF rng service.
> >
> 
> I am working on several SoCs that also will need this kind of driver
> to get entropy from Arm trusted firmware.
> If you intend to make this a generic interface, please clean up the
> references to MediaTek and give it a more generic name. For example
> "Arm Trusted Firmware random number driver".
> 
> It will also be helpful if the SMC call number is configurable.
> 
> - Lars

Yes, I'm trying to make this to a generic interface. I'll try to make
HW/platform related dependency to be configurable and let it more
generic.
Thanks for your suggestion.

> 
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek

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