On Wed, Mar 13, 2019 at 5:21 AM Christian König <[email protected]> wrote: > > We can't just map any randome page we get when memory encryption is > active. > > Signed-off-by: Christian König <[email protected]>
Acked-by: Alex Deucher <[email protected]> > --- > drivers/gpu/drm/drm_memory.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c > index 8dbcdc77f6bf..132fef8ff1b6 100644 > --- a/drivers/gpu/drm/drm_memory.c > +++ b/drivers/gpu/drm/drm_memory.c > @@ -168,6 +168,13 @@ bool drm_need_swiotlb(int dma_bits) > if (xen_pv_domain()) > return true; > > + /* > + * Enforce dma_alloc_coherent when memory encryption is active as well > + * for the same reasons as for Xen paravirtual hosts. > + */ > + if (mem_encrypt_active()) > + return true; > + > for (tmp = iomem_resource.child; tmp; tmp = tmp->sibling) { > max_iomem = max(max_iomem, tmp->end); > } > -- > 2.17.1 > > _______________________________________________ > dri-devel mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
