AMD/IOMMU: pass IOMMU to amd_iommu_alloc_intremap_table()

The function will want to know IOMMU properties (specifically the IRTE
size) subsequently.

Correct indentation of one of the call sites at this occasion.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
---
v3: New.

--- a/xen/drivers/passthrough/amd/iommu_acpi.c
+++ b/xen/drivers/passthrough/amd/iommu_acpi.c
@@ -74,12 +74,14 @@ static void __init add_ivrs_mapping_entr
          /* allocate per-device interrupt remapping table */
          if ( amd_iommu_perdev_intremap )
              ivrs_mappings[alias_id].intremap_table =
-                amd_iommu_alloc_intremap_table(
-                    &ivrs_mappings[alias_id].intremap_inuse);
+                 amd_iommu_alloc_intremap_table(
+                     iommu,
+                     &ivrs_mappings[alias_id].intremap_inuse);
          else
          {
              if ( shared_intremap_table == NULL  )
                  shared_intremap_table = amd_iommu_alloc_intremap_table(
+                     iommu,
                      &shared_intremap_inuse);
              ivrs_mappings[alias_id].intremap_table = shared_intremap_table;
              ivrs_mappings[alias_id].intremap_inuse = shared_intremap_inuse;
--- a/xen/drivers/passthrough/amd/iommu_intr.c
+++ b/xen/drivers/passthrough/amd/iommu_intr.c
@@ -632,7 +632,8 @@ int __init amd_iommu_free_intremap_table
     return 0;
 }
 
-void* __init amd_iommu_alloc_intremap_table(unsigned long **inuse_map)
+void *__init amd_iommu_alloc_intremap_table(
+    const struct amd_iommu *iommu, unsigned long **inuse_map)
 {
     void *tb;
     tb = __alloc_amd_iommu_tables(INTREMAP_TABLE_ORDER);
--- a/xen/include/asm-x86/hvm/svm/amd-iommu-proto.h
+++ b/xen/include/asm-x86/hvm/svm/amd-iommu-proto.h
@@ -97,7 +97,8 @@ struct amd_iommu *find_iommu_for_device(
 
 /* interrupt remapping */
 int amd_iommu_setup_ioapic_remapping(void);
-void *amd_iommu_alloc_intremap_table(unsigned long **);
+void *amd_iommu_alloc_intremap_table(
+    const struct amd_iommu *, unsigned long **);
 int amd_iommu_free_intremap_table(
     const struct amd_iommu *, struct ivrs_mappings *);
 void amd_iommu_ioapic_update_ire(