linux-kernel - Re: [RFC 0/5] drivers: Add boot constraints core

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Message-ID: <7ff5fe0b-72fa-7a23-44df-59761cc6dd1c@gr13.net>
Date:   Thu, 29 Jun 2017 13:05:42 +0000
From:   "Enrico Weigelt, metux IT consult" <enrico.weigelt@...3.net>
To:     Russell King - ARM Linux <linux@...linux.org.uk>,
        Viresh Kumar <viresh.kumar@...aro.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rafael Wysocki <rjw@...ysocki.net>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Rob Herring <robh@...nel.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        rnayak@...eaurora.org, Shiraz Hashim <shashim@...eaurora.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [RFC 0/5] drivers: Add boot constraints core

On 29.06.2017 12:49, Russell King - ARM Linux wrote:

> The location of the frame buffer is unknown to the decompressor - and
> as the decompressor self-relocates itself (using purely assembly code),
> it could relocate itself on top of the frame buffer, causing the "nice"
> image to become very colourful.

Could the bootloader pass safe (or blocked) memory regions to the
decompressor ?

--mtx