From mboxrd@z Thu Jan  1 00:00:00 1970
From: Will Deacon <will.deacon@arm.com>
Subject: Re: [PATCH kvmtool v2 0/6] arm: Add support for firmware booting
Date: Tue, 22 Jan 2019 07:10:26 +0000
Message-ID: <20190122071024.GB10214@brain-police>
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Cc: andre.przywara@arm.com, Sami.Mujawar@arm.com, kvmarm@lists.cs.columbia.edu,
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To: Julien Thierry <julien.thierry@arm.com>
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Hi Julien,

On Thu, Jan 10, 2019 at 02:20:40PM +0000, Julien Thierry wrote:
> This series is based on the virtio reset series[1] posted earlier.
> 
> We would like to be able to load firmwares like UEFI in kvmtool.
> 
> The series contains:
> A way to load the firmware into RAM and an option to be able to create
> non-volatile memory zones and load data into them.
> 
> Those non-volatile memory are presented throught the DT with a node:
> 
> 	<flash>@<addr> {
> 		compatible = "kvmtool,flash";
> 		reg = < <addr> <size> >;
> 		label = <name>;
> 	}
> 
> These are expected to be dealt with by specific kvmtool driver and not
> to be picked up by existing drivers (although technically it is just
> plain memory, mapped in the guest).

I've picked up the first four patches of this series, but I don't really
understand where you're going with the non-volatile memory part and whether
it's nvram, flash or something completely different. Given that Linux
doesn't support your binding, is this something that UEFI currently uses?

Will