On Wed, Dec 11, 2019 at 09:40:15AM +0800, Lu Baolu wrote: > If the default DMA domain of a group doesn't fit a device, it > will still sit in the group but use a private identity domain. > When map/unmap/iova_to_phys come through iommu API, the driver > should still serve them, otherwise, other devices in the same > group will be impacted. Since identity domain has been mapped > with the whole available memory space and RMRRs, we don't need > to worry about the impact on it. > > Link: https://www.spinics.net/lists/iommu/msg40416.html > Cc: Jerry Snitselaar <jsnitsel@xxxxxxxxxx> > Reported-by: Jerry Snitselaar <jsnitsel@xxxxxxxxxx> > Fixes: 942067f1b6b97 ("iommu/vt-d: Identify default domains replaced with private") > Cc: stable@xxxxxxxxxxxxxxx # v5.3+ > Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> > --- > drivers/iommu/intel-iommu.c | 8 -------- > 1 file changed, 8 deletions(-) Applied for v5.5, thanks.
