On Mon, Feb 11, 2013 at 11:12:42PM +1100, aik@xxxxxxxxx wrote: > From: Alexey Kardashevskiy <aik@xxxxxxxxx> > > he current VFIO-on-POWER implementation supports only user mode > driven mapping, i.e. QEMU is sending requests to map/unmap pages. > However this approach is really slow in really fast hardware so > it is better to be moved to the real mode. > > The patch adds an API to increment/decrement page counter as > get_user_pages API used for user mode mapping does not work > in the real mode. > > CONFIG_SPARSEMEM_VMEMMAP and CONFIG_FLATMEN are supported. > > Signed-off-by: Alexey Kardashevskiy <aik@xxxxxxxxx> > Cc: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx> > --- The names are slightly odd, in that they include "vmemmap_" but exist and work in the flatmem case as well. Apart from that... Reviewed-by: Paul Mackerras <paulus@xxxxxxxxx> Paul. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
