Re: [BACKPORT] swiotlb-xen: implement xen_swiotlb_dma_mmap callback

2017-09-22 Thread Juergen Gross
On 18/09/17 20:08, Stefano Stabellini wrote: > On Fri, 15 Sep 2017, Greg KH wrote: >> On Thu, Sep 14, 2017 at 04:23:05PM -0700, Stefano Stabellini wrote: >>> Hi all, >>> >>> We are getting reports from Xen on ARM users about DMA issues. The >>> problem is that the commit below >>> (7e91c7df29b5e196

Re: [BACKPORT] swiotlb-xen: implement xen_swiotlb_dma_mmap callback

2017-09-20 Thread Stefano Stabellini
On Wed, 20 Sep 2017, Leonard Crestez wrote: > On Mon, 2017-09-18 at 11:08 -0700, Stefano Stabellini wrote: > On Fri, 15 Sep 2017, Greg KH wrote: > > On Thu, Sep 14, 2017 at 04:23:05PM -0700, Stefano Stabellini wrote: > > > Hi all, > > >  > > > We are getting reports from Xen on ARM users about DMA

Re: [BACKPORT] swiotlb-xen: implement xen_swiotlb_dma_mmap callback

2017-09-20 Thread Leonard Crestez
On Mon, 2017-09-18 at 11:08 -0700, Stefano Stabellini wrote: On Fri, 15 Sep 2017, Greg KH wrote: > On Thu, Sep 14, 2017 at 04:23:05PM -0700, Stefano Stabellini wrote: > > Hi all, > >  > > We are getting reports from Xen on ARM users about DMA issues. The > > problem is that the commit below > > (7e

Re: [BACKPORT] swiotlb-xen: implement xen_swiotlb_dma_mmap callback

2017-09-19 Thread Stefano Stabellini
On Mon, 18 Sep 2017, Boris Ostrovsky wrote: > On 09/18/2017 02:08 PM, Stefano Stabellini wrote: > > On Fri, 15 Sep 2017, Greg KH wrote: > >> On Thu, Sep 14, 2017 at 04:23:05PM -0700, Stefano Stabellini wrote: > >>> Hi all, > >>> > >>> We are getting reports from Xen on ARM users about DMA issues. T

Re: [BACKPORT] swiotlb-xen: implement xen_swiotlb_dma_mmap callback

2017-09-18 Thread Boris Ostrovsky
On 09/18/2017 02:08 PM, Stefano Stabellini wrote: > On Fri, 15 Sep 2017, Greg KH wrote: >> On Thu, Sep 14, 2017 at 04:23:05PM -0700, Stefano Stabellini wrote: >>> Hi all, >>> >>> We are getting reports from Xen on ARM users about DMA issues. The >>> problem is that the commit below >>> (7e91c7df29b

Re: [BACKPORT] swiotlb-xen: implement xen_swiotlb_dma_mmap callback

2017-09-18 Thread Stefano Stabellini
On Fri, 15 Sep 2017, Greg KH wrote: > On Thu, Sep 14, 2017 at 04:23:05PM -0700, Stefano Stabellini wrote: > > Hi all, > > > > We are getting reports from Xen on ARM users about DMA issues. The > > problem is that the commit below > > (7e91c7df29b5e196de3dc6f086c8937973bd0b88) is necessary to suppo

Re: [BACKPORT] swiotlb-xen: implement xen_swiotlb_dma_mmap callback

2017-09-15 Thread Greg KH
On Thu, Sep 14, 2017 at 04:23:05PM -0700, Stefano Stabellini wrote: > Hi all, > > We are getting reports from Xen on ARM users about DMA issues. The > problem is that the commit below > (7e91c7df29b5e196de3dc6f086c8937973bd0b88) is necessary to support mmap > on Xen on ARM. It is self-contained an

[BACKPORT] swiotlb-xen: implement xen_swiotlb_dma_mmap callback

2017-09-14 Thread Stefano Stabellini
Hi all, We are getting reports from Xen on ARM users about DMA issues. The problem is that the commit below (7e91c7df29b5e196de3dc6f086c8937973bd0b88) is necessary to support mmap on Xen on ARM. It is self-contained and doesn't affect anything outside of Xen on ARM, so I think is a good candidate