From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: "Mark Langsdorf" <mark.langsdorf@calxeda.com>,
"Richard Henderson" <rth@twiddle.net>,
"Alexander Graf" <agraf@suse.de>,
"Fabien Chouteau" <chouteau@adacore.com>,
"QEMU Developers" <qemu-devel@nongnu.org>,
"Blue Swirl" <blauwirbel@gmail.com>,
"Michael Walle" <michael@walle.cc>,
"Hervé Poussineau" <hpoussin@reactos.org>,
"Gerd Hoffmann" <kraxel@redhat.com>,
"Anthony Liguori" <anthony@codemonkey.ws>,
"New World" <qemu-ppc@nongnu.org>,
"Andreas Färber" <andreas.faerber@web.de>,
"Aurelien Jarno" <aurelien@aurel32.net>,
"Paul Brook" <paul@codesourcery.com>
Subject: Re: [Qemu-devel] [PATCH] turn firmware image filename into a machine option
Date: Tue, 01 Oct 2013 16:57:42 +0200 [thread overview]
Message-ID: <524AE2E6.5010303@redhat.com> (raw)
In-Reply-To: <CAFEAcA9jvmSDLxYqsATD9gNvohmf0EP1p6YiWSnJ-sYfUM5+sw@mail.gmail.com>
Il 01/10/2013 15:00, Peter Maydell ha scritto:
> > Some don't. They just memcpy the firmware into guest ram instead.
>
> ...is that a good thing? What does the real hardware do? Should we
> be doing that instead? Isn't this awkward on reset?
They probably have a ROM (which should be the real "-machine
firmware=...") that loads firmware from NAND flash ("-drive
if=mtd,file=...") into RAM, and then gets out of the way.
Perhaps it's what QEMU should do, but not even the few machines that
support "-drive if=mtd" do it to this level of accuracy.
Paolo
next prev parent reply other threads:[~2013-10-01 14:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-01 9:39 [Qemu-devel] [PATCH] turn firmware image filename into a machine option Gerd Hoffmann
2013-10-01 10:55 ` Peter Maydell
2013-10-01 11:22 ` Gerd Hoffmann
2013-10-01 11:32 ` Peter Maydell
2013-10-01 12:16 ` Gerd Hoffmann
2013-10-01 12:20 ` Andreas Färber
2013-10-01 13:41 ` Gerd Hoffmann
2013-10-01 13:46 ` Andreas Färber
2013-10-01 14:23 ` Alexey Kardashevskiy
2013-10-01 14:40 ` Gerd Hoffmann
2013-10-01 14:45 ` Alexander Graf
2013-10-01 21:23 ` Benjamin Herrenschmidt
2013-10-02 1:18 ` Alexey Kardashevskiy
2013-10-01 13:00 ` Peter Maydell
2013-10-01 14:57 ` Paolo Bonzini [this message]
2013-10-01 15:05 ` Gerd Hoffmann
2013-10-01 15:12 ` Peter Maydell
2013-10-01 15:28 ` Paolo Bonzini
2013-10-01 15:42 ` Anthony Liguori
[not found] ` <524AB29F.3030906@suse.de>
2013-10-01 13:32 ` Gerd Hoffmann
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