Please ignore this one, use "[PATCH 1/2] iommu/vt-d: Report SVA feature with generic flag" instead. Sorry about the noise.
On Mon, 24 Feb 2020 15:26:35 -0800 Jacob Pan <[email protected]> wrote: > Query Shared Virtual Address/Memory capability is a generic feature. > Report Intel SVM as SVA feature such that generic code such as Uacce > [1] can use it. > [1] https://lkml.org/lkml/2020/1/15/604 > > Signed-off-by: Jacob Pan <[email protected]> > --- > drivers/iommu/intel-iommu.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c > index 92c2f2e4197b..5eca6e10d2a4 100644 > --- a/drivers/iommu/intel-iommu.c > +++ b/drivers/iommu/intel-iommu.c > @@ -6346,9 +6346,14 @@ intel_iommu_dev_has_feat(struct device *dev, > enum iommu_dev_features feat) static int > intel_iommu_dev_enable_feat(struct device *dev, enum > iommu_dev_features feat) { > + struct intel_iommu *intel_iommu = dev_to_intel_iommu(dev); > + > if (feat == IOMMU_DEV_FEAT_AUX) > return intel_iommu_enable_auxd(dev); > > + if (feat == IOMMU_DEV_FEAT_SVA) > + return intel_iommu->flags & VTD_FLAG_SVM_CAPABLE; > + > return -ENODEV; > } > [Jacob Pan] _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
