Messages in this thread | | | Date | Fri, 23 Aug 2019 10:23:07 +0200 | From | Joerg Roedel <> | Subject | Re: [PATCH] iommu/vt-d: remove global page flush support |
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Hi Jacob,
On Tue, Aug 20, 2019 at 02:21:08PM -0700, Jacob Pan wrote: > Global pages support is removed from VT-d spec 3.0. Since global pages G > flag only affects first-level paging structures and because DMA request > with PASID are only supported by VT-d spec. 3.0 and onward, we can > safely remove global pages support. > > For kernel shared virtual address IOTLB invalidation, PASID > granularity and page selective within PASID will be used. There is > no global granularity supported. Without this fix, IOTLB invalidation > will cause invalid descriptor error in the queued invalidation (QI) > interface. > > Reported-by: Sanjay K Kumar <sanjay.k.kumar@intel.com> > Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> > --- > drivers/iommu/intel-svm.c | 36 +++++++++++++++--------------------- > include/linux/intel-iommu.h | 3 --- > 2 files changed, 15 insertions(+), 24 deletions(-)
Does not cleanly apply to v5.3-rc5, can you please rebase it and re-send? Also, is this v5.3 stuff (in that case please add a Fixes tag) or can it wait for v5.4?
Regards,
Joerg
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