On Mon, 8 Jun 2020, Christoph Hellwig wrote:
> On Mon, Jun 08, 2020 at 10:38:02PM -0700, Christoph Hellwig wrote:
> > On Mon, Jun 08, 2020 at 05:38:28PM -0700, Stefano Stabellini wrote:
> > > Yeah, the pfn_valid check is a bit weird by definition because we are
> > > using it to understand whether
On Mon, Jun 08, 2020 at 10:38:02PM -0700, Christoph Hellwig wrote:
> On Mon, Jun 08, 2020 at 05:38:28PM -0700, Stefano Stabellini wrote:
> > Yeah, the pfn_valid check is a bit weird by definition because we are
> > using it to understand whether the address belong to us or to another
> > VM. To do
On Mon, Jun 08, 2020 at 05:38:28PM -0700, Stefano Stabellini wrote:
> Yeah, the pfn_valid check is a bit weird by definition because we are
> using it to understand whether the address belong to us or to another
> VM. To do the pfn_valid check we need to translate the dma address into
> something t
On Mon, 8 Jun 2020, Christoph Hellwig wrote:
> On Wed, Jun 03, 2020 at 03:22:46PM -0700, Stefano Stabellini wrote:
> > From: Stefano Stabellini
> >
> > xen_dma_sync_for_cpu, xen_dma_sync_for_device, xen_arch_need_swiotlb are
> > getting called passing dma addresses. On some platforms dma addresse
On Wed, Jun 03, 2020 at 03:22:46PM -0700, Stefano Stabellini wrote:
> From: Stefano Stabellini
>
> xen_dma_sync_for_cpu, xen_dma_sync_for_device, xen_arch_need_swiotlb are
> getting called passing dma addresses. On some platforms dma addresses
> could be different from physical addresses. Before
From: Stefano Stabellini
xen_dma_sync_for_cpu, xen_dma_sync_for_device, xen_arch_need_swiotlb are
getting called passing dma addresses. On some platforms dma addresses
could be different from physical addresses. Before doing any operations
on these addresses we need to convert them back to physic
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