[PATCH 2/2] arm64: dts: Reduce size of virtio block device for foundation model

[Catalin Marinas]

On Fri, Dec 20, 2013 at 04:05:22PM +0000, Mark Brown wrote:
> On Fri, Dec 20, 2013 at 02:25:24PM +0000, Catalin Marinas wrote:
> > On Fri, Dec 20, 2013 at 12:52:44PM +0000, Mark Brown wrote:
> > > From: Mark Brown <broonie at linaro.org>
> 
> > > Will Deacon observed that kvmtool uses a size of 0x200 for virtio
> > > block memory region and that the virtio block spec only uses 31 bytes in
> > > the device specific region at 0x100 so reduce the region to a less
> > > wasteful 0x200.
> 
> > What do we waste by keeping it at 4K? That's ioremap'ed, so we use a
> > full page anyway.
> 
> This was done for consistency with the same change made in RTSM
> motherboard patch so that we register the same device in the same way.  
> That change was at Will's request, he did point out that we might use
> 16K pages in some systems IIRC but personally I'm not sure it makes a
> huge difference either way - I do think we should keep all registrations
> of the device consistent though to avoid user confusion about how to use
> it.

OK. Applied.

-- 
Catalin