Re: [Xen-devel] Upstream Dom0 DRM problems regarding swiotlb

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 13.02.19 at 17:56, <konrad.wilk@xxxxxxxxxx> wrote:
> @@ -887,6 +888,8 @@ static int gmc_v6_0_sw_init(void *handle)
>               dev_warn(adev->dev, "amdgpu: No coherent DMA available.\n");
>       }
>       adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits);
> +     if (xen_pv_domain())
> +             adev->need_swiotlb = 1;

But changes like this go too far imo, at least when taking into
account the logic in pci_xen_swiotlb_detect(). Hence my earlier
suggestion to use xen_swiotlb instead of xen_pv_domain().

Jan



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel