On Wed, Jan 20, 2021 at 09:42:43AM +0000, David Woodhouse wrote: > On Thu, 2020-09-24 at 15:08 +0100, David Woodhouse wrote: > > From: David Woodhouse <dwmw@xxxxxxxxxxxx> > > > > Instead of bailing out completely, such a unit can still be used for > > interrupt remapping. > > > > Signed-off-by: David Woodhouse <dwmw@xxxxxxxxxxxx> > > Could we have this for stable too please, along with the trivial > subsequent fixup. They are: > > c40aaaac1018 ("iommu/vt-d: Gracefully handle DMAR units with no supported address widths") > 9def3b1a07c4 ("iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built") > > They apply fairly straightforwardly when backported; let me know if you > want us to send patches. What stable kernel(s) do you want this in? The above patches are already in 5.10. thanks, greg k-h