Re: [PATCH v4 10/10] xen/arm,arm64: enable SWIOTLB_XEN

2013-08-30 Thread Konrad Rzeszutek Wilk
On Thu, Aug 29, 2013 at 04:38:17PM +0100, Stefano Stabellini wrote: > On Thu, 29 Aug 2013, Ian Campbell wrote: > > On Wed, 2013-08-28 at 21:07 +0100, Stefano Stabellini wrote: > > > On Thu, 15 Aug 2013, Ian Campbell wrote: > > > > On Thu, 2013-08-15 at 12:10 +0100, Stefano Stabellini wrote: > > > >

Re: [PATCH v4 10/10] xen/arm,arm64: enable SWIOTLB_XEN

2013-08-29 Thread Stefano Stabellini
On Thu, 29 Aug 2013, Ian Campbell wrote: > On Wed, 2013-08-28 at 21:07 +0100, Stefano Stabellini wrote: > > On Thu, 15 Aug 2013, Ian Campbell wrote: > > > On Thu, 2013-08-15 at 12:10 +0100, Stefano Stabellini wrote: > > > > At the moment always rely on swiotlb-xen, but when Xen starts supporting >

Re: [PATCH v4 10/10] xen/arm,arm64: enable SWIOTLB_XEN

2013-08-29 Thread Ian Campbell
On Wed, 2013-08-28 at 21:07 +0100, Stefano Stabellini wrote: > On Thu, 15 Aug 2013, Ian Campbell wrote: > > On Thu, 2013-08-15 at 12:10 +0100, Stefano Stabellini wrote: > > > At the moment always rely on swiotlb-xen, but when Xen starts supporting > > > hardware IOMMUs we'll be able to avoid it con

Re: [PATCH v4 10/10] xen/arm,arm64: enable SWIOTLB_XEN

2013-08-28 Thread Stefano Stabellini
On Thu, 15 Aug 2013, Ian Campbell wrote: > On Thu, 2013-08-15 at 12:10 +0100, Stefano Stabellini wrote: > > At the moment always rely on swiotlb-xen, but when Xen starts supporting > > hardware IOMMUs we'll be able to avoid it conditionally on the presence > > of an IOMMU on the platform. > > Do w

Re: [PATCH v4 10/10] xen/arm,arm64: enable SWIOTLB_XEN

2013-08-15 Thread Ian Campbell
On Thu, 2013-08-15 at 12:10 +0100, Stefano Stabellini wrote: > At the moment always rely on swiotlb-xen, but when Xen starts supporting > hardware IOMMUs we'll be able to avoid it conditionally on the presence > of an IOMMU on the platform. Do we have any idea how we are going to do this? It's ex