On 2014/9/19 13:18, Jiang Liu wrote:
> Implement required callback functions for intel_irq_remapping driver
> to support DMAR unit hotplug.
>
> Signed-off-by: Jiang Liu
Reviewed-by: Yijing Wang
> ---
> drivers/iommu/intel_irq_remapping.c | 226
> ++-
> 1 file
On 2014/9/19 13:18, Jiang Liu wrote:
> Introduce helper function dmar_walk_resources to walk resource entries
> in DMAR table and ACPI buffer object returned by ACPI _DSM method
> for IOMMU hot-plug.
>
> Signed-off-by: Jiang Liu
Reviewed-by: Yijing Wang
> ---
> drivers/iommu/dmar.c|
Implement required callback functions for intel-iommu driver
to support DMAR unit hotplug.
Signed-off-by: Jiang Liu
Reviewed-by: Yijing Wang
---
drivers/iommu/intel-iommu.c | 206 +++
1 file changed, 151 insertions(+), 55 deletions(-)
diff --git a/drive
On Intel platforms, an IO Hub (PCI/PCIe host bridge) may contain DMAR
units, so we need to support DMAR hotplug when supporting PCI host
bridge hotplug on Intel platforms.
According to Section 8.8 "Remapping Hardware Unit Hot Plug" in "Intel
Virtualization Technology for Directed IO Architecture S
Introduce functions to support dynamic IOMMU seq_id allocating and
releasing, which will be used to support DMAR hotplug.
Also rename IOMMU_UNITS_SUPPORTED as DMAR_UNITS_SUPPORTED.
Signed-off-by: Jiang Liu
Reviewed-by: Yijing Wang
---
drivers/iommu/dmar.c| 40
According to Intel VT-d specification, _DSM method to support DMAR
hotplug should exist directly under corresponding ACPI object
representing PCI host bridge. But some BIOSes doesn't conform to
this, so search for _DSM method in the subtree starting from the
ACPI object representing the PCI host br
Enhance error recovery in function intel_enable_irq_remapping()
by tearing down all created data structures.
Signed-off-by: Jiang Liu
Reviewed-by: Yijing Wang
---
drivers/iommu/intel_irq_remapping.c |8 +---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/int
Finally enhance pci_root driver to support DMAR device hotplug when
hot-plugging PCI host bridges.
Signed-off-by: Jiang Liu
Reviewed-by: Yijing Wang
---
drivers/acpi/pci_root.c | 16 ++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/pci_root.c b/driv
When hot plugging a descrete IOH or a physical processor with embedded
IIO, we need to handle DMAR(or IOMMU) unit in the PCIe host bridge if
DMAR is in use. This patch set tries to enhance current DMAR/IOMMU/IR
drivers to support hotplug and is based on latest Linus master branch.
All prerequisite
Implement required callback functions for intel_irq_remapping driver
to support DMAR unit hotplug.
Signed-off-by: Jiang Liu
---
drivers/iommu/intel_irq_remapping.c | 226 ++-
1 file changed, 171 insertions(+), 55 deletions(-)
diff --git a/drivers/iommu/intel_irq
Introduce helper function dmar_walk_resources to walk resource entries
in DMAR table and ACPI buffer object returned by ACPI _DSM method
for IOMMU hot-plug.
Signed-off-by: Jiang Liu
---
drivers/iommu/dmar.c| 209 +++
drivers/iommu/intel-iommu.c |
Hi Will,
After some fun times wondering why on Earth of_iommu_init was trying to
instantiate a GIC, I think we may need one of these as part of this
patch, too ;)
Robin.
--->8---
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 8656b63..1927691 100644
--- a/drivers/iom
Hi Will,
Thank you for the patch.
On Friday 12 September 2014 17:34:53 Will Deacon wrote:
> This patch extends of_dma_configure so that it sets up the IOMMU for a
> device, as well as the coherent/non-coherent DMA mapping ops.
>
> Signed-off-by: Will Deacon
> ---
> arch/arm/include/asm/dma-map
Hi Will,
Thank you for the patch.
On Friday 12 September 2014 17:34:52 Will Deacon wrote:
> The generic IOMMU device-tree bindings can be used to add arbitrary OF
> masters to an IOMMU with a compliant binding.
>
> This patch introduces of_iommu_configure, which does exactly that. A
> list of io
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