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Re: [Qemu-devel] [RFC] Writeable files in fw_cfg


From: David Woodhouse
Subject: Re: [Qemu-devel] [RFC] Writeable files in fw_cfg
Date: Sun, 27 Jan 2013 15:50:27 +0000

On Sun, 2013-01-27 at 15:14 +0000, Blue Swirl wrote:
> It looks like this duplicates rom_add_file() and fw_cfg_add_file(), so
> I don't see the point.

Both of those are read-only, surely? The firmware inside the guest can't
use them for non-volatile storage.

It doesn't duplicate fw_cfg_add_file(); it extends it to allow a
writeable mode too. fw_cfg_add_file() becomes a simple wrapper around
fw_cfg_add_file_writeable(), which actually contains most of the
contents of the original function.

-- 
dwmw2

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