On Thu, 19 Jan 2017, Konrad Rzeszutek Wilk wrote: > On Thu, Jan 19, 2017 at 06:58:46PM -0500, Boris Ostrovsky wrote: > > On 01/19/2017 01:39 PM, Stefano Stabellini wrote: > > > In xen_swiotlb_map_page and xen_swiotlb_map_sg_attrs, if the original > > > page is not suitable, we swap it for another page from the swiotlb > > > pool. > > > > > > In these cases, we don't update the previously calculated dma address > > > for the page before calling xen_dma_map_page. Thus, we end up calling > > > xen_dma_map_page passing the wrong dev_addr, resulting in > > > xen_dma_map_page mistakenly assuming that the page is foreign when it is > > > local. > > > > > > Fix the bug by updating dev_addr appropriately. > > > > > > This change has no effect on x86, because xen_dma_map_page is a stub > > > there. > > > > > > Signed-off-by: Stefano Stabellini <sstabell...@kernel.org> > > > Signed-off-by: Pooya Keshavarzi <pooya.keshava...@de.bosch.com> > > > Tested-by: Pooya Keshavarzi <pooya.keshava...@de.bosch.com> > > > > Reviewed-by: Boris Ostrovsky <boris.ostrov...@oracle.com> > > Acked-by: Konrad Rzeszutek Wilk <konrad.w...@oracle.com> > > I can carry it via my swiotlb.git tree or if there are some extra > things on the Xen tree - it can go through that?
It might be best to go via swiotlb.git: I don't think we have anything on the Xen tree at the moment -- Juergen has just sent a pull request for it. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
