[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Upstream Dom0 DRM problems regarding swiotlb
>>> On 13.02.19 at 17:00, <michael.d.labriola@xxxxxxxxx> wrote: > On Wed, Feb 13, 2019 at 9:28 AM Jan Beulich <JBeulich@xxxxxxxx> wrote: >> >>> On 13.02.19 at 15:10, <michael.d.labriola@xxxxxxxxx> wrote: >> > Ah, so this isn't necessarily Xen-specific but rather any paravirtual >> > guest? That hadn't crossed my mind. Is there an easy way to find out >> > if we're a pv guest in the need_swiotlb conditionals? >> >> There's xen_pv_domain(), but I think xen_swiotlb would be more to >> the point if the check is already to be Xen-specific. There's no generic >> "is PV" predicate that I'm aware of. > > Well, that makes doing conditional code right more difficult. I > assume since there isn't a generic predicate, and PV isn't new, that > it's absence is by design? To reign in the temptation to sprinkle > conditional code all over the kernel? ;-) Well, with lguest gone, Xen is the only PV environment the kernel can run in, afaik at least. I guess to decide between the suggested options or the need for some abstracting macro (or yet something else), you'll really need to ask the driver maintainers. Or simply send a patch their way implementing one of them, and see what their reaction is. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |