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Correct length of the ID mapping field #9

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Oct 3, 2024
Merged

Correct length of the ID mapping field #9

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13 changes: 4 additions & 9 deletions src/rimt-main.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -75,10 +75,7 @@ the structure in RIMT used to report the configuration and capabilities of each
device structure. For structures
compliant to this version of the
specification, the Revision is 1.
| Length | 2 | 2 | The length of this structure in bytes
computed as (40 + 8 * N); where N is
the number of interrupt wires driven
by the IOMMU.
| Length | 2 | 2 | The length of this structure.
| Reserved | 2 | 4 | Must be zero.
| ID | 2 | 6 | Unique ID of this IOMMU.
| Hardware ID | 8 | 8 | ACPI ID of the platform IOMMU device
Expand Down Expand Up @@ -175,8 +172,7 @@ hierarchy below a PCIe host bridge.
|Revision | 1 | 1 | 1 - Revision of this structure. For
structures compliant to this version of
the specification, the Revision is 1.
|Length | 2 | 2 | The length of this structure computed as
(20 + 20 * N).
|Length | 2 | 2 | The length of this structure.
|Reserved | 2 | 4 | Must be zero.
|ID | 2 | 6 | Unique ID. It can be simply the array
index in the RIMT devices array.
Expand All @@ -202,7 +198,7 @@ a|
| Number of ID mappings | 2 | 18 | Number of elements in the ID mapping
array.
4+|List of ID mappings
| ID mapping array | 16 * N | 20 | Array of ID mapping structures. See
| ID mapping array | 20 * N | 20 | Array of ID mapping structures. See
<<id_mapping_structure>>.
|===

Expand Down Expand Up @@ -260,8 +256,7 @@ device only.
| *Field* | *Byte Length* | *Byte Offset* | *Description*
| Type | 1 | 0 | 2 - Platform Device Binding Structure.
| Revision | 1 | 1 | 1 - Revision of this structure.
| Length | 2 | 2 | The length of this structure
(12 + M + P + 20 * N).
| Length | 2 | 2 | The length of this structure.
| Reserved | 2 | 4 | Must be zero.
| ID | 2 | 6 | Unique ID of this device.
| ID mapping array offset | 2 | 8 | The offset from the start of this device
Expand Down