Add VT-d IO page table support to ATTACH_TABLE request.
Signed-off-by: Tina Zhang
---
drivers/iommu/virtio-iommu.c | 23 +++
include/uapi/linux/virtio_iommu.h | 26 ++
2 files changed, 49 insertions(+)
diff --git a/drivers/iommu/virtio-iommu.c b
The generic IO page table framework provides a set of interfaces for
invoking IO page table operations. Other entity (e.g., virtio-iommu
driver) can use the interface to ask VT-d driver to generate a VT-d
format IO page table. This patch adds the support.
Signed-off-by: Tina Zhang
---
drivers
VT-d hardware cap/ecap information is needed for driver to generate VT-d
format IO page table. Add struct vtd_cfg to keep the info.
Signed-off-by: Tina Zhang
---
include/linux/io-pgtable.h | 5 +
1 file changed, 5 insertions(+)
diff --git a/include/linux/io-pgtable.h b/include/linux/io
stment.
Signed-off-by: Tina Zhang
---
drivers/iommu/virtio-iommu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index 08e310672e57..b1ceaac974e2 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio
/202310/msg00018.html
[2]:https://jpbrucker.net/git/linux/log/?h=virtio-iommu/pgtables
Tina Zhang (5):
iommu/virtio-iommu: Correct the values of granule and nr_pages
iommu/vt-d: Add generic IO page table support
iommu/io-pgtable: Introduce struct vtd_cfg
iommu/vt-d: Adapt alloc_pgtable
Add basic hook up code to implement generic IO page table framework.
Signed-off-by: Tina Zhang
---
drivers/iommu/intel/Kconfig | 1 +
drivers/iommu/intel/iommu.c | 94 +
drivers/iommu/intel/iommu.h | 7 +++
drivers/iommu/io-pgtable.c | 3 ++
include/linux
