diff options
| author | Liu Yi L <yi.l.liu@intel.com> | 2021-01-06 19:03:55 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-01-07 17:34:36 +0300 |
| commit | 9ad9f45b3b91162b33abfe175ae75ab65718dbf5 (patch) | |
| tree | 47f8a8481b8c7bb0765c009d569381a0dfec9918 /lib | |
| parent | aded8c7c2b72f846a07a2c736b8e75bb8cf50a87 (diff) | |
| download | linux-9ad9f45b3b91162b33abfe175ae75ab65718dbf5.tar.xz | |
iommu/vt-d: Move intel_iommu info from struct intel_svm to struct intel_svm_dev
'struct intel_svm' is shared by all devices bound to a give process,
but records only a single pointer to a 'struct intel_iommu'. Consequently,
cache invalidations may only be applied to a single DMAR unit, and are
erroneously skipped for the other devices.
In preparation for fixing this, rework the structures so that the iommu
pointer resides in 'struct intel_svm_dev', allowing 'struct intel_svm'
to track them in its device list.
Fixes: 1c4f88b7f1f9 ("iommu/vt-d: Shared virtual address in scalable mode")
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Raj Ashok <ashok.raj@intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Reported-by: Guo Kaijie <Kaijie.Guo@intel.com>
Reported-by: Xin Zeng <xin.zeng@intel.com>
Signed-off-by: Guo Kaijie <Kaijie.Guo@intel.com>
Signed-off-by: Xin Zeng <xin.zeng@intel.com>
Signed-off-by: Liu Yi L <yi.l.liu@intel.com>
Tested-by: Guo Kaijie <Kaijie.Guo@intel.com>
Cc: stable@vger.kernel.org # v5.0+
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/1609949037-25291-2-git-send-email-yi.l.liu@intel.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions