[Replicant] [PATCH v2][ 03/11] freedom-privacy-security-issues: Improve the modem definition
contact at paulk.fr
Wed Jun 7 07:27:39 UTC 2017
Le mercredi 20 avril 2016 à 09:57 +0200, Paul Kocialkowski a écrit :
> Le lundi 28 mars 2016 à 20:50 +0200, Denis 'GNUtoo' Carikli a écrit :
> > I don't know any GSM baseband that can run without their own
> > memory.
> > Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo at no-log.org>
> > ---
> > freedom-privacy-security-issues.php | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> > diff --git a/freedom-privacy-security-issues.php b/freedom-privacy-security-
> > issues.php
> > index 7def689..8fba5fb 100644
> > --- a/freedom-privacy-security-issues.php
> > +++ b/freedom-privacy-security-issues.php
> > @@ -15,7 +15,7 @@
> > <a href="images/freedom-privacy-security-
> > issues/hardware.png" data-lightbox="overview" data-title="Hardware-side
> > overview"><img src="images/freedom-privacy-security-issues/hardware.png"
> > alt="Hardware-side overview" style="width: 250px; float: left;"/></a>
> > On the hardware side, mobile devices are
> > built with a system on a chip (SoC) that includes a processor (CPU) and
> > various other fundamental components, around which are found various
> > integrated circuits, memory (RAM), storage, user input/output (I/O), etc.
> > When the device is telephony-enabled, it
> > also
> > features a modem, which is the component in charge of dealing with the
> > mobile
> > telephony network.
> > - Nowadays, it is usually a powerful
> > processor,
> > sometimes with its own memory and storage.
> > + Its firmware runs on a dedicated processor,
> > with dedicated memory and sometimes storage.
> I agree with the intent, but there are a few problems with this phrasing:
> * The term "firmware" is only introduced later in the document.
> * "with dedicated memory and sometimes storage" is ambiguous, because one
> understand "it sometimes has dedicated memory and it sometimes has storage".
> What we really want to say is that memory is always dedicated and storage can
> either dedicated or not.
> How about the following phrasing:
> This component embeds a powerful processor that runs an operating system,
> with dedicated memory and storage that can be dedicated or shared with the
" This component embeds a powerful processor that runs an operating system,
along with dedicated volatile memory. Its storage can be dedicated or shared
with the main processor. "
> > </p>
> > <p>
> > Regarding the software side of things on
> > mobile devices, the main CPU (inside the SoC) starts by executing initial
> > boot
> > code, often known as the bootrom.
Paul Kocialkowski, developer of free digital technology and hardware support
Coding blog: https://code.paulk.fr/
Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/
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