From: David Gibson <david@gibson.dropbear.id.au>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: aik@ozlabs.ru, agraf@suse.de, qemu-devel@nongnu.org,
qemu-ppc@nongnu.org, mdroth@us.ibm.com
Subject: Re: [Qemu-devel] [PATCH 1/2] vga: Expose framebuffer byteorder as a QOM property
Date: Tue, 10 Feb 2015 21:58:09 +1100 [thread overview]
Message-ID: <20150210105809.GH25675@voom.fritz.box> (raw)
In-Reply-To: <1423559998.488.9.camel@nilsson.home.kraxel.org>
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On Tue, Feb 10, 2015 at 10:19:58AM +0100, Gerd Hoffmann wrote:
> On Di, 2015-02-10 at 15:36 +1100, David Gibson wrote:
> > The VGA device model now supports having the framebuffer in either endian,
> > and can be switched between these by the guest via a register in the qext
> > region.
> >
> > However, in some cases (e.g. LE OS on the pseries machine) we have
> > existing guest that don't know about the endian switch register, but other
> > parts of the qemu code have better information to set a default endianness
> > than the VGA code does of itself.
> >
> > In order to allow them to set a correct default endianness in these cases,
> > without breaking abstraction walls, this patch exposes the VGA framebuffer
> > endianness via a writable QOM property.
> >
> > Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> >
> > prop fixup
>
> squash leftover?
Oops, yes.
> Otherwise:
>
> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
>
> (assuming this little series gets in via ppc tree).
>
> cheers,
> Gerd
>
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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next prev parent reply other threads:[~2015-02-10 11:04 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-10 4:36 [Qemu-devel] [PATCH 0/2] ppc: Automatically set vga framebuffer endianness based on guest David Gibson
2015-02-10 4:36 ` [Qemu-devel] [PATCH 1/2] vga: Expose framebuffer byteorder as a QOM property David Gibson
2015-02-10 9:19 ` Gerd Hoffmann
2015-02-10 10:58 ` David Gibson [this message]
2015-02-10 4:36 ` [Qemu-devel] [PATCH 2/2] pseries: Switch VGA endian on H_SET_MODE David Gibson
2015-02-17 17:03 ` Michael Roth
2015-02-20 14:11 ` [Qemu-devel] [PATCH 0/2] ppc: Automatically set vga framebuffer endianness based on guest Alexander Graf
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