Re: [Qemu-devel] [Xen-devel] [PATCH v2 0/2] build QEMU with Xen support on ARM

[Stefano Stabellini]

On Wed, 18 Dec 2013, Konrad Rzeszutek Wilk wrote:
> On Wed, Dec 18, 2013 at 07:15:43PM +0000, Stefano Stabellini wrote:
> > Hi all,
> > the xenpv machine provides Xen paravirtualized backends for console,
> > disk and framebuffer. xenfb in particular is the only open source
> > framebuffer backend available.
> > On ARM we don't need QEMU to emulate any hardware but xenpv would still
> > be useful at least to provide xenfb.
> > This patch series allows QEMU to build and run (xenpv) with Xen support
> > on ARM.
> > 
> 
> This should work out of the box (with changes to the toolstack) to work
> under x86 right? I would have to do some 'vga=none' to disable the VGA
> framebuffer?

Yes, it should already be working on x86 without changes to the toolstack.
You don't even need to pass 'vga=none': that is for HVM guests, while
for PVH guests we simple want the xenpv QEMU, the one exclusively providing
userspace pv backends.



> > Changes in v2:
> > - use SCNu64 instead of PRIu64 with sscanf;
> > - assert mfn == (xen_pfn_t)mfn;
> > - use HOST_LONG_BITS to check for QEMU's address space size.
> > 
> > 
> > Stefano Stabellini (2):
> >       xen_backend: introduce xenstore_read_uint64 and 
> > xenstore_read_fe_uint64
> >       xen: build on ARM
> > 
> >  hw/display/xenfb.c           |   18 ++++++++++--------
> >  hw/xen/xen_backend.c         |   18 ++++++++++++++++++
> >  include/hw/xen/xen_backend.h |    2 ++
> >  xen-all.c                    |    2 +-
> >  xen-mapcache.c               |    4 ++--
> >  5 files changed, 33 insertions(+), 11 deletions(-)
> > 
> > _______________________________________________
> > Xen-devel mailing list
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> > http://lists.xen.org/xen-devel
>