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Re: [Xen-devel] [RFC] ARM VM System Sepcification

On Wed, 26 Feb 2014, Peter Maydell wrote:

> On 26 February 2014 23:08, Rob Herring <robherring2@xxxxxxxxx> wrote:
> > On Wed, Feb 26, 2014 at 4:54 PM, Peter Maydell <peter.maydell@xxxxxxxxxx> 
> > wrote:
> >> What does the 8250 have to recommend it over just providing
> >> the PL011?
> >
> > As I mentioned, it will just work for anything that expects the serial
> > port to be ttyS0 as on x86 rather than ttyAMA0.
> This doesn't seem very compelling to me. Either userspace
> should just be fixed or the kernel should implement a namespace
> for serial ports which doesn't randomly change just because the
> particular h/w driver doing the implementation is different.
> We shouldn't be papering over other peoples' problems in the VM
> spec IMHO.


This is already causing us trouble in other contexts.  Please have a 
look at this patch for a solution:



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