[ats_vtd,v1,17/24] intel_iommu: implement the get_memory_region_pasid iommu operation

Commit Message

CLEMENT MATHIEU--DRIF May 2, 2024, 3:29 p.m. UTC

Signed-off-by: Clément Mathieu--Drif <[e-mail]>
---
 hw/i386/intel_iommu.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

Patch

diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index e9fa48b378..a62cbf303d 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -6000,9 +6000,24 @@  static AddressSpace *vtd_host_dma_iommu(PCIBus *bus, void *opaque, int devfn)
     return vtd_host_dma_iommu_pasid(bus, opaque, devfn, PCI_NO_PASID);
 }
 
+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_address_space_pasid = vtd_host_dma_iommu_pasid,
+    .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,
 };