[PATCH v3 10/19] intel_iommu: Implement the get_memory_region_pasid iommu operation

[CLEMENT MATHIEU--DRIF <clement.mathieu--drif@eviden.com>]

From: Clement Mathieu--Drif <clement.mathieu--drif@eviden.com>

Signed-off-by: Clement Mathieu--Drif <clement.mathieu--drif@eviden.com>
---
 hw/i386/intel_iommu.c         | 17 ++++++++++++++++-
 include/hw/i386/intel_iommu.h |  2 +-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index a360119fbe..d3772d8902 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -4202,7 +4202,7 @@ static const MemoryRegionOps vtd_mem_ir_fault_ops = {
 };
 
 VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus,
-                                 int devfn, unsigned int pasid)
+                                 int devfn, uint32_t pasid)
 {
     /*
      * We can't simply use sid here since the bus number might not be
@@ -4719,8 +4719,23 @@ static AddressSpace *vtd_host_dma_iommu(PCIBus *bus, void *opaque, int devfn)
     return &vtd_as->as;
 }
 
+static IOMMUMemoryRegion *vtd_get_memory_region_pasid(PCIBus *bus,
+                                                      void *opaque,
+                                                      int devfn,
+                                                      uint32_t pasid)
+{
+    IntelIOMMUState *s = opaque;
+    VTDAddressSpace *vtd_as;
+
+    assert(0 <= devfn && devfn < PCI_DEVFN_MAX);
+
+    vtd_as = vtd_find_add_as(s, bus, devfn, pasid);
+    return &vtd_as->iommu;
+}
+
 static PCIIOMMUOps vtd_iommu_ops = {
     .get_address_space = vtd_host_dma_iommu,
+    .get_memory_region_pasid = vtd_get_memory_region_pasid,
     .set_iommu_device = vtd_dev_set_iommu_device,
     .unset_iommu_device = vtd_dev_unset_iommu_device,
 };
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h
index e95477e855..08f71c262e 100644
--- a/include/hw/i386/intel_iommu.h
+++ b/include/hw/i386/intel_iommu.h
@@ -324,6 +324,6 @@ struct IntelIOMMUState {
  * create a new one if none exists
  */
 VTDAddressSpace *vtd_find_add_as(IntelIOMMUState *s, PCIBus *bus,
-                                 int devfn, unsigned int pasid);
+                                 int devfn, uint32_t pasid);
 
 #endif
-- 
2.48.1