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[dpe] Clarify DERIVE_CONTEXT parameters when EXPORT_CDI is set #94

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[dpe] Clarify DERIVE_CONTEXT parameters when EXPORT_CDI is set #94

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4 changes: 2 additions & 2 deletions specifications/dpe-irot-profile/spec.ocp
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Original file line number Diff line number Diff line change
Expand Up @@ -1533,7 +1533,7 @@ Table: `DERIVE_CONTEXT_INPUT_ARGS` struct
| 0x04 | `U32` | 31:0 | `COMMAND_ID` | `DPE_COMMAND_DERIVE_CONTEXT`.
| 0x08 | `U32` | 31:0 | `PROFILE` | `DPE_PROFILE_IROT_P256_SHA256`.
| 0x0C | `BYTES` | 127:0 | `CONTEXT_HANDLE` | A numeric handle referring to a DPE context.
| 0x1C | `HASH` | | `INPUT_DATA` | Hash to measure.
| 0x1C | `HASH` | | `INPUT_DATA` | Hash to measure. Ignored when `EXPORT_CDI` is set.
| 0x1C + H | `BITFIELD` | 31 | `INTERNAL_INPUT_INFO` | Use dpe-info internal input if 1.
| | | 30 | `INTERNAL_INPUT_DICE` | Use dpe-dice internal input if 1.
| | | 29 | `RETAIN_PARENT_CONTEXT` | If set, `CONTEXT_HANDLE` SHALL be retained.
Expand Down Expand Up @@ -1566,7 +1566,7 @@ Table: `DERIVE_CONTEXT_OUTPUT_ARGS` struct if `EXPORT_CDI` is set
| 0x00 | `U32` | 31:0 | `MAGIC` | Magic number `DPE_RESPONSE_MAGIC`.
| 0x04 | `U32` | 31:0 | `STATUS` | One of `DPE_STATUS_*`.
| 0x08 | `U32` | 31:0 | `PROFILE` | One of `DPE_PROFILE_*`.
| 0x0C | `BYTES` | 127:0 | `NEW_CONTEXT_HANDLE` | The handle for the created child context, or rotated context in case RECURSIVE is set.
| 0x0C | `BYTES` | 127:0 | `NEW_CONTEXT_HANDLE` | The context is destroyed, this field can be ignored. The returned value is an invalid context handle.
| 0x1C | `BYTES` | 127:0 | `PARENT_CONTEXT_HANDLE` | The handle for the parent context if `RETAIN_PARENT_CONTEXT` is set.
| 0x2C | `EXPORTED_CDI` | 255:0 | `EXPORTED_CDI` | If EXPORT_CDI is true, holds exported CDI. Else, value is ignored.
| 0x4C | `U32` | 31:0 | `CERTIFICATE_SIZE` | Number of bytes used in `NEW_CERTIFICATE`.
Expand Down