diff options
| author | Yi Liu <yi.l.liu@intel.com> | 2024-02-19 19:16:00 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-01 13:41:56 +0100 |
| commit | d4e22a8f7c5374f76311ad024aa7d3ec41046d91 (patch) | |
| tree | b83f31ea2222452a83c376622cfab7c86076a0a3 | |
| parent | 33a48b8b59b45fa8fd838edd679944ce83e0be07 (diff) | |
iommu/vt-d: Set SSADE when attaching to a parent with dirty tracking
[ Upstream commit 1f0198fce68340e0da2d438f4ea9fc20d2c958da ]
Should set the SSADE (Second Stage Access/Dirty bit Enable) bit of the
pasid entry when attaching a device to a nested domain if its parent
has already enabled dirty tracking.
Fixes: 111bf85c68f6 ("iommu/vt-d: Add helper to setup pasid nested translation")
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Link: https://lore.kernel.org/r/20240208091414.28133-1-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/iommu/intel/pasid.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/intel/pasid.c b/drivers/iommu/intel/pasid.c index 9f8f389ff255..6e102cbbde84 100644 --- a/drivers/iommu/intel/pasid.c +++ b/drivers/iommu/intel/pasid.c @@ -925,6 +925,8 @@ int intel_pasid_setup_nested(struct intel_iommu *iommu, struct device *dev, pasid_set_domain_id(pte, did); pasid_set_address_width(pte, s2_domain->agaw); pasid_set_page_snoop(pte, !!ecap_smpwc(iommu->ecap)); + if (s2_domain->dirty_tracking) + pasid_set_ssade(pte); pasid_set_translation_type(pte, PASID_ENTRY_PGTT_NESTED); pasid_set_present(pte); spin_unlock(&iommu->lock); |