Re: [PATCH 3/4] powerpc: preparing to support real mode optimization

2013-02-14 Thread Paul Mackerras
On Mon, Feb 11, 2013 at 11:12:42PM +1100, a...@ozlabs.ru wrote: > From: Alexey Kardashevskiy > > 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 >

[PATCH 3/4] powerpc: preparing to support real mode optimization

2013-02-11 Thread aik
From: Alexey Kardashevskiy 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 increme